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| Did some googling around and making notes, here is what I found, this is ordered chronologically and I will try to organize the information into sections later, but this is only a sampling of the information available. Sorry about the perforated boxes, I have not been able to stop the wiki from doing that, and the lack of hard returns is another wiki quirk:
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| -apparently their efficiency goes *up* with time over about 2 years 80% as mentioned in the forum, purportedly unknown exactly why, would be nice to know.
| | =Review= |
| -from the manufacturer's of the modern batteries seems like efficiency is reasonably high actually, was not able to determine if the charging efficiency is nearly equal to the round trip efficiency, so the graphs might paint an overly rosy picture, but I think it is pretty close
| | *''The nickel/iron battery is a rechargeable electrochemical power source with certain special advantages. It has good scope for traction applications. The present state-of-art advantages, limitations, and uses of the nickel/iron battery, along with its electrochemical characteristics, are outlined in this review. Various methods available for fabricating both the negative iron and the positive nickel oxy-hydroxide (NiO·OH) electrodes, as well as the electrochemical characteristics of these electrodes, are discussed.'' - study this for manufacturing techniques - [https://www.sciencedirect.com/science/article/abs/pii/037877539180002F] |
| http://www.changhongbatteries.com/Ni-Fe_battery_for_Solar_&_wind_appliances_p53_m2.2.1.html
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| low quality taken from browser history:
| | ==Research== |
| http://www.beutilityfree.com/content/index.php?option=com_content&view=article&id=106:Ni-FeFAQ&catid=42:Nickel-Iron%20Batteries
| | Patent Review whitepaper - [[File:nifepatents.zip]] |
| http://www.green-trust.org/wordpress/2010/07/14/american-made-nickel-iron-nife-forever-batteries/
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| http://www.ironcorepower.com.au/page3.php
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| http://www.varta-automotive.com/index.php?id=87
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| http://www.ehow.com/way_5993981_homemade-edison-cell.html
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| http://ps-survival.com/PS/Batteries/NiMH/Iron-Nickel_Battery_2008.pdf
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| http://www.electro-tech-online.com/renewable-energy/100471-building-good-working-capacity-ni-fe-battery.html
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| http://www.incompliancemag.com/index.php?option=com_content&view=article&id=56:the-lost-almost-technology-of-the-edison-cell&catid=29:just-for-fun&Itemid=138
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| higher quality
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| http://www.nickel-iron-battery.com/
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| http://fieldlines.com/board/index.php?topic=144379.0 says "combiner caps" catalytic caps are available
| | ===Battery Chemistries=== |
| http://sustainabledesignupdate.com/2010/02/green-battery-design/ says they have/had a team developing them I emailed them http://apptechdesign.org/contact-us/ as asking for any documentation they can send on their work
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| http://www.solarpowerforum.net/forumVB/off-grid/4509-nickel-iron-batteries-8.html on one page here includes list of manufacturers that currently make them
| | *[[Nickel-Iron Battery]] |
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| the product pages etc form blog post
| | **[[Edison Battery]] |
| http://www.uni-regensburg.de/Fakultaeten/nat_Fak_IV/Organische_Chemie/Didaktik/Keusch/chembox_edison-e.htm
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| more
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| Swedesh pat.Nos 8.558/1897, 10.177/1899, 11.132/1899, 11.487/1899 and German Patent No.110.210 /1899.
| | *[[Lead Acid Battery]] |
| US.Pat No.678.722/1901, 692.507/1902 and German patent No 157.290/1901
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| http://edison.rutgers.edu/patents/01488481.PDF
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| didn't look at http://www.patents.com/us-4330603.html
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| may be other patents, companies that make them and search freepatentsonline using the advanced search function for assignee name may turn up more and more recent
| | *[[Aluminum-Air Battery]] |
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| | *[[Zinc bromine battery]] |
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| more on nickel iron ChangHong
| | *[https://wiki.opensourceecology.de/Zn/O-Brennstoffzelle OSE Germany's Zinc/Oxygen (from the air) battery] |
| searched on freepatents online
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| nickel iron electrochemical cell[p]
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| nickel iron battery[p]
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| nickel-iron battery[p]
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| nickel iron cell
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| nickel iron secondary cell
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| nickel iron AN/changhong
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| nickel iron AN/varta (changhong website says tehir battery tech is made from varta
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| nickel oxyhydroxide battery at this there are many on nickel zinc batteries too might be useful bu tmost were omitted from notes below
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| nickel oxyhydroxide electrode
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| nickel oxyhydroxide battery
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| a lot on nickel zinc but since the cathode material is the same might be useful but most were omitted from below since there are so many
| | *[[Other Batteries]] |
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| went through the first pages of results, got surprisingly few given how old these are, the search hits were usually very low relevance by the end of the first page so didn't continue past there though there were some on nickel zinc
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| assignee changhong
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| also the related patents thing on the patent webpages might be useful to find even more
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| maybe email the suppliers through alibaba to see who own the technology base and if they have any documentation
| | ===Research=== |
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| high quality
| | *[[Battery Research Gregor]] Unedited library research notes. |
| http://www.freepatentsonline.com/3853624.html
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| http://www.freepatentsonline.com/0827297.htmlthis one number wa sobtained from http://www.beutilityfree.com/content/index.php?option=com_content&view=article&id=106:Ni-FeFAQ&catid=42:Nickel-Iron%20Batteries notice that older patens are not searchable by the contents of the text unfortunately so any other edison patents may not be findable through patent search
| | *[[Nickel-Iron Battery/Chemistry|Battery chemistry]] |
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| battery grade nickel hydroxide http://www.freepatentsonline.com/5788943.html | | *[[Battery Chemistry Comparison]] Comparison between potential battery chemistries to see if there might be something better than nickel iron for OSE purposes. Summary: Zinc bromine may well be better, see zinc bromine pages for details. |
| http://www.freepatentsonline.com/7407521.html process to produce nickel hydroxide maybe not useful thogh
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| http://www.freepatentsonline.com/7081319.html preparation of nickel oxyhydrozide with ozone suitable fo use n battery (ozone is easy to produce with high voltage electrodes)
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| http://www.freepatentsonline.com/4064331.html iron electrodes for battereis
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| unk[p]
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| lower quality:[p]
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| http://www.freepatentsonline.com/0678722.html edison us patent fist one metioned in wikipedia also appears to be on nicad not nickel iron
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| http://www.freepatentsonline.com/0692507.html second one mentioned appears to be on nicad batteries not nickel iron
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| http://www.freepatentsonline.com/6193871.html forming nickel elecrtode
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| http://www.freepatentsonline.com/6492062.html nickel zinc
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| http://www.freepatentsonline.com/7691531.html nickel hy more nickel zinc tells about nickel oxydydroxide lelectrode though
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| http://www.freepatentsonline.com/6991875.html nother nice=kel zinc
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| http://www.freepatentsonline.com/6261720.html have no idea if this is useful, something about a nickel hydroxide electrode in alkaline battery though I think this is probably be applicable to nickel metal hydride only ther eare many on nickel hydroxide electrodes
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| http://www.freepatentsonline.com/4207383.html iron electrode maybe not useful
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| there also appears to be alot of patents of more generalized approaches to e.g. the mechanical structure of the lectrodes of a secondary flooded cell battery which may be useful , on recombining hydrogen and o2 produceed by overchargning etc.
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| http://www.freepatentsonline.com/5200282.html electrode ratehr than plates if wanted high disshcarge currents m\aybe
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| http://www.freepatentsonline.com/7435395.html on nickel zinc
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| emailed http://apptechdesign.org/contact-us/ again on may 15asking for documentation on nickel iron
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| more links
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| http://www.youtube.com/watch?v=K84PywMwjZg didn't watch indivudual says has read mulitiple edison patents coudl contact them to ge tnumbers and advice, couldn't find a way through youtube
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| all things considered there seem to be very few patents related to nickel iron batteries, but a lot more on nickel zinc for some reason, also this searching through patentsonline did not unearth the edison patents so there is room for improvement in the search method. Also the swedishand german patents should be retireved and translated though I assume they would be in swedish or german so I did not do that. There are probably more edison patents to be uncovered.
| | ===Additional Research=== |
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| What is a "chemical short"? thermal runaway type thing? Nickel iron is known to be prone to thermal runaway need to know the electrochemistry involved here, might refer to coloumbic leakage rather than an actual short i.e. ions in the electrolyte moving in the opposite direction or electrons consumed in some
| | *[[Nickel-Iron Battery/Sourcing|Nickel-Iron Battery Sourcing]] |
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| | *[[Battery Patents]] |
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| It appears that as usual the electrochemistry of a good rather than crappy battery is not so simple, especially over a large number of charge/discharge cycles.
| | *[[Battery Papers]] |
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| Clearly a chemist or someone else with significant expertise is needed here to work out the details. For example sulfur from vulcanized rubber can contaminate the battery chemistry apparently according to the edison patents. IIRC steel has a small quantities of sulfur in it so using sheet metal as the anode might not work out although that of course remains to be determined....
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| On may 17 I had another look for useful information:
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| There may be one or two duplicates here, in many cases for scientific docs those look like the most interesting but I did not have access to them. Someone with access could perhaps retrieve them and share them with developers who ask under fair use I think.
| | ===Nickel Iron=== |
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-43MDKGV-3T&_user=10&_coverDate=02%2F28%2F1990&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754749372&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=fbe875e250bbedd5c9c31cc21f22158d&searchtype=a
| | *[[Nickel-Iron SLI battery]] |
| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-43MDRN3-67&_user=10&_coverDate=04%2F30%2F1991&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754737867&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=6cd39f8af38d365d4f7f3c3310c19022&searchtype=ais
| | *[[Battery Concept]] |
| | *[[Nickel-Iron_Battery/Prototype]] |
| | *[[Battery Spec]] |
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| In many cases docs were focussed on weight and discharge rate, but that is not out main concern, mainly $ per kWh and cycle life, with a discharge rate of at least 0.3 C (i.e. 300 watts for a 1kWh batt) it would work okay for pure solar systems, for biomass a higher discharge woudl be nice as it's primary function is to level the load on an hourly and daily basis at relatively high powers so a higher discharge rate could allow a smaller battery (whereas with pure solar you need a battery big enough to last for 3 days anyway and therefor even if the discharge rate as a fraction of capacity is low that is not a problem since the battery is so big anyway). However because batteries wear out partly as a function of the energy dumped into/removed (also ambient temperature but this will vary depending on the precise details of the battery, on ironedison.com it indicates substantial loss from elevated temperatures but the precise reaction that causes this needs to be identified) from them they may be considered on both a capital cost and running cost basis. Higher discharge rates will not in themselves affect the running cost, only capital cost, which may or may not be relatively small, that would need to be considered before effort is expended to produce a battery that would be okay with higher discharge rates. Secondly, there are no hard and fast rules on discharge rate for a given battery except to prevent overheating and achieve good energy efficiency, or for unusual reasons which are chemistry specific. The rules of thumb listed in battery datasheets are computed based on thermal characteristics, internal resistance of the battery (the higher it is the lower the discharge/charge rate you woudl want because Ohms law applies, therefore higher currents result in higher resistive losses) and in some cases unusual battery chemistry details like high speed charging resulting in wierd crystal structures of the anode or dendrite growth. Usually a battery can be operated above the rated charge/discharge rate as an engineering compromise though, which should be kept i nmind
| | ===Ideas=== |
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| | *[[NiFe Vehicles]] |
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| In an OSE context it may no longer make sense to talk about battery cycle life in the same way. In a consumer context when a battery goes dead you get a new one, in some cases paying to get rid of th old one. And yet the active materials have not dissapeared. However there are sometimes irreversible side reactions that occur, changes in chemistry, the electrode that was supposed dto provide mechanical sterngth etc has dessolved, etc. For lead acid batteries there is information available on this of course. What is it for nickel iron? There is a whole industry based on rejuvenating "dead" lead acid batteris though clever chemisttry techniwues etc. and perhaps analogous techniques shoudl be worked out for nickel iron as part of this project. That could help to substantially decreae the effective running cost fo the batteries. There may already be a lot of information in existence to be drawn upon as these batteries have be used since they were invented in niche markets such as european mining, and in China, rather than as it is portrayed as beign forgotten.
| | *[http://www.nickel-iron-battery.com hydrogen use] |
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| By the way from what I have read this stuff about batteries lasting 50 years that some manufacturer's claim either includes this maintenance or it is bunk. They may last 3, 4 or 5 times as long as lead acid but certainly not 50 years of daily use without some kind of serious maintenance.
| | *[[Nickel-Iron_Battery/Research_Development/Ideas/3D_Printed|3D Printed]] |
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-44CVXGT-F&_user=10&_coverDate=11%2F30%2F2001&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754742248&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=ec803b11bf9489e6f5a74dad0ccbfcce&searchtype=a
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-3VR6J5Y-2&_user=10&_coverDate=09%2F30%2F1996&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754736866&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=5fe7b156fc556763f1a2488f1a2eef78&searchtype=a
| | ===Collaboration=== |
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| something about activatign the iron electrode,
| | *[[Battery Projects]] |
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| patent number 5,788,943 Aug. 4, 1998
| | *[[Battery Collaboration]] |
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| [54] BATTERY-GRADE NICKEL HYDROXIDE AND METHOD FOR ITS PREPARATION this one might have been already noted elsewhere | | =Basic Material Cost Calculations= |
| | *$4550 for 4kwhr storage, 750 lb -[https://ironedison.com/nickel-iron-ni-fe-battery] |
| | *Nickel iron batteries are made from nickel and iron. |
| | *Nickel $8/lb. $18k usd/2200lb - [https://tradingeconomics.com/commodity/nickel]. Scrap costs $4/lb. [https://www.scrapregister.com/metal-price/nickel-alloy-scrap/34] |
| | *Iron costs 10 cents/lb at commodity price - [https://iscrapapp.com/prices/] |
| | *Weight of a 4kWhr system is 750 lb [https://ironedison.com/images/Spec%20Sheets/2.%20Nickel%20Iron%20battery%20info/Iron%20Edison%20-%20Nickel%20Iron%20Data%20Sheet%202018.pdf] |
| | *Nickel oxide costs $25/lb [https://www.alibaba.com/showroom/nickel-oxide-price.html] |
| | *Nickel oxide hydroxide [https://en.wikipedia.org/wiki/Nickel_oxide_hydroxide] is used in batteries. It is prepared from nickel(II) hydroxide - [https://en.wikipedia.org/wiki/Nickel(II)_hydroxide] which is in turn prepared from nickel II salts with sodium hydroxide. [https://en.wikipedia.org/wiki/Nickel(II)_chloride#Other_uses]. Nickel chloride is a common salt - $8/lb. [https://www.alibaba.com/product-detail/nickel-chloride-hexahydrate-nickel-chloride-price_1600216717236.html?spm=a2700.7724857.normal_offer.d_title.313bceeeXyuQnC]. Nasty chem appears to be involved. |
| | *Iron oxide is 50 cents/lb [https://www.alibaba.com/showroom/iron%252b%2528iii%2529%252boxide.html] |
| | *Graphite powder is 50 cents/lb [https://www.alibaba.com/showroom/graphite+powder.html?fsb=y&IndexArea=product_en&CatId=&SearchText=graphite+powder&isGalleryList=G] |
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-4679T4B-1B&_user=10&_coverDate=08%2F31%2F1995&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754734072&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=84892d5964e609a899d54fbde534666c&searchtype=a good info on cycle life of exisyong cels
| | '''Problem Statement:''' Say the battery is 20% nickel [https://www.solarpaneltalk.com/forum/off-grid-solar/batteries-energy-storage/ni/7052-how-much-nickel-is-really-in-a-nickel-iron-ni-fe-battery]. Then 150 lb of nickel would be $600 for baseline cost at scrap nickel prices. Except the process relies on Nickel Oxide Hydroxide - not the same thing. So we need to trace the manufacturing process down to nickel oxide hydroxide sourcing. As well as how much nickel oxide hydroxide is actually used per battery. |
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TG0-44CHX0D-90&_user=10&_origUdi=B6TH1-4679T4B-1B&_fmt=high&_coverDate=04%2F30%2F1976&_rdoc=1&_orig=article&_origin=article&_zone=related_art&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=cacbfb701007ce4d2ed73e9ffecb40a7 self discharge
| | About 2M tons of nickel are produced per year. This determines the number of batteries that can be produced. |
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| | =Design= |
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| "battery grade nickel oxydydroxide" mayb be many such patents or the same on ekeep sseing
| | ==Variables and Formulas== |
| nicckel/iron
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| Battery-grade nickel hydroxide and method for its preparation
| | http://en.wikipedia.org/wiki/Ampere-hour |
| B Aladjov - US Patent 5,788,943, 1998
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| | ==Design Proposals== |
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| | ===10 cell with flat plates=== |
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| | https://drive.google.com/folderview?id=0BwxMMqGvwTM-Wm5maHJVMVExRTg&usp=sharing 10 cell 3d printed |
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| | ::<html><img src="https://docs.google.com/drawings/d/1JaxzGdN-nkb_fk_Cq_IGbGAbIGHFxetyJZsGELH6DB8/pub?w=251&h=107"></html> |
| higher quality:
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| http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5525702 pdf seems to be here free http://www.nickel-iron-battery.com/sealed-nickel-iron-battery.pdf
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| http://www.nickel-iron-battery.com/nickel-iron-cycle-testing-1995.pdf cyle testing
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-43MDJS6-2N&_user=10&_coverDate=09%2F30%2F1994&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754797265&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=d2f1168545feacb1d7834ffd30cf729b&searchtype=a
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-43MDSPY-6S&_user=10&_coverDate=06%2F30%2F1991&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754794033&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=96fe8af78e49f181bae86df2a1085081&searchtype=a
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TG0-3Y0SH11-B&_user=10&_coverDate=02%2F29%2F1996&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754792458&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=c47dbade5e61e0f4de4ac3707698bafe&searchtype=a coudl eb wuite iomportant, lithium hydroxide is often added to nickel iron batteries and this explains why , but litium is actually quite toxic (used as mood stabilizer for depression etc.) so shoudl be avoided if possible or unless the amounts are quite small, maybe sustitues can be found or maybe the edison batteries do not use it and are fine so it can be omitted. Also it is yet another component to add to the system and synthesize which is bad for OSE, how common is lithium in the environment?.
| | https://github.com/dorkmo/ose-battery |
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| http://www.google.ca/patents?lr&vid=USPAT3849198&dq=nickel-iron%20%20battery&printsec=abstract&id=PEUtAAAAEBAJ&output=text&pg=PA1
| | =Cost= |
| | *Quoted $200 each on 2/5/18 for 400A, 1.2V battery from ZhuHai CIYI Battery Co.,Ltd, battery model CYNF400. Price FOB Shenzhen. But just look at the discharge cycles - 62 years at 50% DoD if daily discharge. $400/kWh. Price for 10 batteries will be + $280 for shipping to Kansas City. |
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| http://www.google.ca/patents?lr&vid=USPAT2653180&dq=nickel-iron%20%20battery&printsec=abstract&id=9mRlAAAAEBAJ&output=text&pg=PA2 on a battery itsself looks like a good one
| | [[Image:CYNF400.jpg|900px]] |
| http://www.google.ca/patents?lr&vid=USPAT4680241&dq=nickel-iron%20%20battery&printsec=abstract&id=ACEvAAAAEBAJ&output=text&pg=PA1 good info too and method of restorign lost capacoty
| | *Another quote from Seawill Technology Co. is TN800 - 1.2V -800Ah - 57.5kg - $349 each, so 40 are a $13960 total, $710 shipping to KC |
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| http://www.google.ca/patents?lr&vid=USPAT3507696&dq=nickel-iron%20%20battery&printsec=abstract&id=tQ0hAAAAEBAJ&output=text&pg=PA2 interesting but has some funny parts like saying oxidization not known from th 70s maybe thats why explains iron passivation of leecctrode this coudl be important
| | =Archives= |
| | Due to people's attempts to edit things on the wiki that were started but never finished, some valuable information has been lost from the nickel iron project in recent revisions of some wiki pages. In particular, if you are interested in the nickel iron project, I have a collection of high quality documents from the peer reviewed literature that will be quite helpful. Email me at Gregorfolouk@hotmail.com and I will send you the documents though. Edit: here is the file you can download with all the docs http://kiwi6.com/file/7u7r1fm2ys The service is supposed to host it in perpetuity but we'll see. |
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| | Here is a list of the document titles, and other information from the last intact copy of the page I had built for the nickel iron project before it was torn up, for more information [http://opensourceecology.org/w/index.php?title=Nickel-Iron_Battery&diff=prev&oldid=32539#library search the titles on google scholar]. |
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| lower quality:
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| http://www.freepatentsonline.com/3911094.html producing nickel oxydydroxide also discusses self discharg mechanisms of anode interesting but not needed migth reduce self discharge rate
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| There area many patents on the nickel electrode geometries and how to make them ususally intended for nimh or nickle zinc but coudl be used for us too, though again the perforated pockets are porbbaly adequate for our purposes anyway, they are usually intended to solve problems like low energy density etc which is not amajor problem for us anyway(
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| http://www.google.ca/patents?hl=en&lr=&vid=USPAT4844999&id=ujE1AAAAEBAJ&oi=fnd&dq=nickel+iron++oxyhydroxide+battery&printsec=abstract#v=onepage&q&f=false
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| http://www.freepatentsonline.com/EP0587973.html
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| http://www.google.ca/patents?hl=en&lr=&vid=USPAT5861225&id=8LEYAAAAEBAJ&oi=fnd&dq=nickel+iron++oxyhydroxide+battery&printsec=abstract#v=onepage&q&f=false
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| )
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|
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V3F-50P47KJ-2&_user=10&_coverDate=09%2F30%2F2010&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1754805309&_rerunOrigin=scholar.google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=e286d03850bd05025a213e592d004af5&searchtype=a making ni(oh)2
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| electrodes:
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| http://www.freepatentsonline.com/EP0723305.html
| |
|
| |
|
| [ii] Patent Number: 4,863,484 [45] Date of Patent: Sep. 5, 1989
| | =See Also= |
|
| |
|
| [54] PROCESS FOR PRODUCING BATTERY ELECTRODES BY ELECTROCHEMICAL REDUCTION | | * [[Batteries]] |
| | * [[Electricity]] |
| | * [[Nickel-Iron SLI battery]] |
| | * [[Impact of battery characteristics on off grid system_cost]] |
| | * [http://www.youtube.com/watch?v=K84PywMwjZg&feature=youtube_gdata_player video] |
|
| |
|
| I hit the motherlode this time:
| | =Ongoing Research= |
| | *Westinghouse , 500 cycles, 80%DOD tests with new designs - [https://worldwidescience.org/topicpages/n/nickel+iron+battery.html] |
|
| |
|
| http://edison.rutgers.edu/battpats.htm | | =Useful Links= |
| | *Y-Combinator discussion - [https://news.ycombinator.com/item?id=15618494] |
| | *Walk-through of '''Edison's battery factory including how the batteries are made''' - [[Nickel-Iron_Battery/Manufacturing_Instructions]] |
| | * [http://en.wikipedia.org/wiki/Battery_(electricity) Wikipedia: Battery] |
|
| |
|
| All (purportedly) of Edison's battery related patents, and it looks as though a large fraction of them relate to nickel iron directly or indirectly, from production of raw materials to the geometry of the electrodes. I started going through them but my computer is too slow. Most of them appear to be highly relevant; because he did not have high grade commodity materials to work with, this appears to be nearly an instruction book on making batteries from relatively low grade materials, although it might not be as good as a modern commercial one that remains to be seen, especially with a modest redesign combining the modern information above (and there is more like it I'm sure).
| | * [http://en.wikipedia.org/wiki/Nickel_iron_battery Wikipedia: Nickel iron Battery] |
|
| |
|
| | *Comparison of Lithium Ion to Nickel Iron batteries from Tesla Motors - [https://forums.tesla.com/forum/forums/nickeliron-batteries]. Copied to OSE Wiki for archival purposes - [[Nickel Iron vs Lithium Ion Battery from Tesla Motors]]. |
|
| |
|
| | *Example of DIY build - [https://www.youtube.com/watch?v=K84PywMwjZg] |
|
| |
|
| | *Website [https://www.noonco.com/edison/improvements.htm] contains useful materials - [[File:NiFepaper1.pdf]], [[File:NiFepaper2.pdf]] |
|
| |
|
| =May 19=
| | *Stanford fast NiFe battery - [https://newatlas.com/scientists-give-new-life-to-thomas-edisons-nickel-iron-battery/23102/]. It's useful to contact the researchers |
| I am making this a separate section because the wiki put a warning that the page may have been to long for some browsers to edit without breaking into categories.
| |
|
| |
|
| | * Nuts and Volts article on the NiFe Battery - [http://nutsvolts.texterity.com/nutsvolts/201202/?folio=38#pg38] |
|
| |
|
| Maybe look at the most specific or relevant patents and then search using the names of inventors etc.
| | * Edison Battery improvements - [http://www.noonco.com/edison/improvements.htm] |
|
| |
|
| The conductive scaffold for active material is referred to as a plaque of it is metallic (and maybe if not).
| | * Patent - nickel oxide hydroxide electrodes - [http://www.google.com/patents/US4462875] |
|
| |
|
| patent 3583624, porous fiber matt described in such a way that surface arae can be calculated is okay at 0.5 C
| | * Good discussion on OSE Workshops FB page - [https://www.facebook.com/OpenSourceEcology/posts/10153603267576562] |
| also describes a process used to load the electrodes that sounds like a lot of work, precipitating the iron in the electrode matrix, also says "electroprecipitation" can be used without elaborating.
| |
| electrodeposition method http://www.freepatentsonline.com/3898098.html says that electrodes used todat (1975) are almost identical to those use dby edison, says easy to deposit ferrous hydroxide, might be wrong hydroxide?
| |
|
| |
|
| http://www.freepatentsonline.com/4064331.html mentiones activating iron oxide by soakin in h2s water (h2s highly toxic note similar to cyanide but strong odor at subtoxic levels so relatively safe )also provides brand names for iron oxide might give an idea of purity freedom from various compounds required , is using pyrolized polymer and carbon as electrode maybe coudl use well heated pyrolized biomass instead of carbon and some other polymer or material for carbon but this seems to be only for small electrodes of 1.7 grams but may be used in conjuntion with other methods
| | * Battery University: [https://batteryuniversity.com/] |
|
| |
|
| nickel iron cycle testing pdf has somethin gabout mucic acid to reduce the production of gas during charging that was from a pantent could probbaly find the patent
| | [[Category: Research]] |
| | |
| "Nickel hydroxide has been used for many years as an active electrode material for the positive electrode of alkaline batteries. The nickel hydroxide electrodes for these electrochemical cells traditionally fall into one of two major groups, sintered electrodes or pasted electrodes. Sintered electrodes are typically prepared by loading nickel hydroxide into a microporous substrate formed of a perforated steel sheet or mesh followed by sintering to form nickel oxyhydroxide, NiOOH.[why do the sintering if it is already loaded with nickel hydroxide??] The more recent pasted electrodes are prepared by producing an aqueous mixture of nickel hydroxide powder in a suitable carrier such as carboxymethyl cellulose. A porous metal substrate of fiber, foam or sponge is then impregnated with the solution to fill the pores of the substrate with nickel hydroxide. One advantage of the pasted nickel electrodes is the higher energy level approaching and even exceeding 600 mAh/cc compared to the typical energy density for sintered electrodes of about 400 mAh/cc. "
| |
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| | |
| From the sealed nickel iron battery doc:
| |
| Negative-limited Ni–Fe cells were assembled by stacking
| |
| an iron electrode in between two sintered nickelpositive
| |
| electrodes. The cells were housed in plexiglass
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| containers in starved-electrolyte configuration, and were
| |
| sealed with a plug containing 0.5 g of 2 at.% Pt/CeO2
| |
| hydrogen–oxygen recombinant catalyst mixed with an
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| equal amount of fumed silica. 6 V/1 Ah sealed, starvedelectrolyte
| |
| Ni–Fe batteries were assembled in a plexiglass
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| container comprising five compartments to
| |
| | |
| What? no Oxyhydroxide? When/how is it formed ?
| |
| | |
| maybe possible to form nickel hydroxide from metallic electrolytically, metallic nickel may be more expensive anyway though
| |
| | |
| faradaic efficiency of nickel iron cells, the sealed battery paper says is only 60% but again goes up over time to 80%
| |
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| new docs
| |
| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B9D09-4XS7F7F-1Y&_user=10&_coverDate=06%2F15%2F2010&_alid=1757347847&_rdoc=1&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=62089&_sort=r&_st=13&_docanchor=&view=c&_ct=344&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=f5345ae331acfe5d91b37b4cb71b71e1&searchtype=a iormn electrodes looks like a lot of good info
| |
| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B9D09-4XS7F7F-1Y&_user=10&_coverDate=06%2F15%2F2010&_alid=1757348188&_rdoc=5&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=62089&_sort=r&_st=13&_docanchor=&view=c&_ct=5535&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=0fa1ea2604ddbade0366a4b993858648&searchtype=a
| |
| http://www.freepatentsonline.com/5989746.html listsa a few types of nickel electrode
| |
| | |
| searched "nickel iron batteries" on sciencedirect.com and went through the first 3 pages
| |
| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-4679T4B-1B&_user=10&_coverDate=08%2F31%2F1995&_alid=1757348188&_rdoc=2&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5269&_sort=r&_st=13&_docanchor=&view=c&_ct=5535&_acct=C000050221&_version=1
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| &_urlVersion=0&_userid=10&md5=f94cc3c3f3988c1195112305e5e27202&searchtype=a
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-44CVXGT-F&_user=10&_coverDate=11%2F30%2F2001&_alid=1757348188&_rdoc=8&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5269&_sort=r&_st=13&_docanchor=&view=c&_ct=5535&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=4f44f20466b2bb38bc245235eba2cd50&searchtype=a
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-43MDSPY-6S&_user=10&_coverDate=06%2F30%2F1991&_alid=1757348188&_rdoc=12&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5269&_sort=r&_st=13&_docanchor=&view=c&_ct=5535&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=07ede512e3dc7e881d576ed4fcbe3f02&searchtype=a looks good
| |
| | |
| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-43VTNX2-6K&_user=10&_coverDate=04%2F30%2F1984&_alid=1757348188&_rdoc=19&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5269&_sort=r&_st=13&_docanchor=&view=c&_ct=5535&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=6616194027956cbac9b3980a6a214093&searchtype=a no abstract
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-43MDMPD-41&_user=10&_coverDate=12%2F31%2F1980&_alid=1757348188&_rdoc=28&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5269&_sort=r&_st=13&_docanchor=&view=c&_ct=5535&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=ef756e00b8a704b046490ace01449657&searchtype=a different author than the last
| |
| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-43VTNX2-6M&_user=10&_coverDate=04%2F30%2F1984&_alid=1757348188&_rdoc=39&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5269&_sort=r&_st=13&_docanchor=&view=c&_ct=5535&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=3ec0bee33859bbc8aae348e20b2e76ab&searchtype=a might be duplicate cant tell since cant see it
| |
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-4CK1XJK-4&_user=10&_coverDate=08%2F12%2F2004&_alid=1757348188&_rdoc=50&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5269&_sort=r&_st=13&_docanchor=&view=c&_ct=5535&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=f9270093cb99fc5e8c6ad5b365e3d437&searchtype=a "pocket plate technology"? also talks about additives but probably for nickel metal hydride I think
| |
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| it employs electrodes with the pocket plate construction wherein the active material is encapsulated between double perforated folded steel strips. http://www.hblnicad.co.uk/Our%20Products.htm
| |
| | |
| http://www.freepatentsonline.com/5989746.html a pocket-type electrode, obtained by compressing electrochemically active material, in this case hydroxide Ni(OH) 2 , mixed with a conductor, into a metal pocket having perforated walls so that the electrolyte can impregnate the active material, but the active material cannot escape from the pocket; and
| |
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| Maybe vacuum for gettin gpaste into the porous electrode, expose electrode to vacuum, cover in paste then expose to atmospheric, paste gets sucked into electrode , could also put electrode in a pan then vover with paste and maybe do one vacuum cycle
| |
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| make a complete contained widget machine or glove box for electrode production to contain the (moderately) toxic materials if have to use paste
| |
| | |
| Cost of nickel oxide and hydroxide to determin if they might be cheaper than metal nickel in terms of the quantity of nickel:
| |
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| Prices on the pages are FOB: free on board; assumption of responsibility by shipper for all costs until goods are placed on carrier , whatever carrier is, presumabbly the shipping company.
| |
| | |
| Ranges from 7 to 30$ on alibaba.com some grades migh tnot be suitable for batteris due to impurities, this can probably be determined from the information in the scientific articles and some manufacturer's conveniently say it is suitable for batteries. Detailed analysis may be available from suppliers. Samples may be obtainable form suppliers for prototyping with the specific material of concern. NiO2 (oxide) and Ni2O3 (peroxide) or NiO see wikipedia for CAS numbers but the pages sometimes fail to distinguish saying oxide always? http://en.wikipedia.org/wiki/Dictionary_of_chemical_formulas/Merge/N note that chemical suppliers are sometimes very sloppy about talking about chemicals and chemical names and may make mistakes, a lot of chemists are, with oxide meaning any of the oxides so need to double check the exact chemical used in the patents if the route of producing nickel oxyhydroxide from nickel oxide by oxidization in o2 gas, ozone in solution or humid ozone gas or otherwise, is chosen.
| |
| | |
| Details on which impurities are problematic needs to be tracked down so the cheapest stuff that will do can be used. Testing works to some degree but not if the impurity causes reduced life which would go undetected.
| |
| Nickel hydroxide I did not check yet because I still need to look at other patents and see if electrode can be made straight from it.
| |
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| alibaba, jus tsearch nickel oxide or "nickel oxide" battery
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| http://www.alibaba.com/product-gs/406028137/Nickel_oxide.html
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| http://www.alibaba.com/product-gs/292513004/SHMMC_Nickel_Oxide_Ni_more_than.html
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| http://www.alibaba.com/product-gs/430054234/Nickel_oxide_74_.html 7$
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| http://www.alibaba.com/product-gs/241109238/Nickelous_Oxide.html
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| conclusion: In terms of nickel content, depends on who it is purchased from etc. But it is usually substantially cheaper than nickel metal.
| |
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| The if vacuum is use for pasted equivalent electrode, battery could be designed such that the pasting process occurs inside the battery maybe no point though, but trying to keep the reactions and toxic materials in the battery during manufacture rateher than needing to pour and transfer them would be nice , and using nickel metal as a starter material coudl be a perk in that regard actually nickel oxide not soluble in water is it? No do not accept "insoluble" as an answer, want to know exactly how soluble
| |
| | |
| Is apparent that the reaction products stay put where the reaction material was before, unlike in a lead acid battery where they form a sludge of material at the bottom of the battery, that assumption tripped me up for a bit there so be it known.
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| http://academic.research.microsoft.com/Paper/11920038 solubility of NiO
| |
| maybe post on amateur chemist forums when the time comes ask for help clearin up uncertainties, maybe experimenting like finding solubility of nickel oxyhydroxide or p
| |
| iron air battery sounds interesing http://www.freepatentsonline.com/4474862.html wonder what the efficiency for rechargnin is probably very low, could make a good electrid lifetrack
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| http://www.freepatentsonline.com/4335192.html ammonium halogenides suitable for activatin iron elecrtrode
| |
| | |
| http://www.freepatentsonline.com/4335192.html The classical method, dating back to Edison, for producing active metallic iron powder involves dissolving the pure iron in sulfuric acid, subjecting the iron sulphate derived from the solution to a baking process at 900° C., and reducing it in hydrogen current at 450° C. after washing and oxidizing drying. The iron powder so formed can subsequently be sintered either in the dry state or as a moist paste in an H 2 current after application to a support, and thus formed into an electrode. Later electrochemical processes for making active iron masses have also become known, e.g., in accordance with Austrian Pat. No. 320,770, which teaches the electrolysis of an iron nitrate solution, with copper salt added to it.
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| | |
| http://www.freepatentsonline.com/4443526.html nickel oxide electrode "A very suitable material is nickel coated steel wool." for current collector of cathode "As can be seen from FIG. 2, the cobalt containing electrode paste of this invention provides pasted electrodes which retain theoretical output of about 0.26 ampere-hours/gram for between 25 to 38 cycles, curves (A) and (B). Without cobalt additive, output drops to below 0.20 ampere-hours/gram of NiCO 3 ." But this is for a nickel oxide electrode. Note also that the efficiency with which the active material is used is very high, wonder if we can get this with oxyhydroxide
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| http://www.freepatentsonline.com/4236927.html High curretn hihgly active more on a sintered iron electrode Numerous attempts have already been undertaken to maintain the polarization within acceptable limits, for example, in that one mixes active iron material with nickel flitter (very fine nickel flakes) as conductive substance and stuffs this mixture into steel pockets or small steel pipes. This electrode type is very stable and sturdy; however, it can be operated only with small current strengths.[the pocket electrode edison used? need to check edison patents he may not have added the flitter or used adifferent metallic material for conductivity]
| |
| | |
| "A simultaneous cathodic separation of iron and of a conductive material such as, for example, nickel, entails a further improvement; " what does this mean?
| |
| | |
| another sugested option might be mixing pure iron powder with sodium chloride solution,sintering adnduring sintering the sodium chloride prevents the particles from sticking together so much as to reduce the surface area more than needed, then removing the excess chloride by dissolving it, read in previous patents that this can help with leectrode activation as well as mentioned it corrodes small pores in the surface of teh iron , also in the process when sinterin gis done in an atmosphere of H2 activates the electrodes (removes oxide I think although not quite sure yet what electrode activation altogether necessarilly entails). Even better use feric chloride then rather than dissovling it reduce it with hydrogen gas to form iron apparently works well, Note that this may not have been tested for lon gterm urability but they are in the know and do no expect it to be a problem and why patent something unless pretty sure it is useful unless they are just putting up fences in case it might be useful, also the patent said that "The theoretical capacity with respect to weight of an iron electrode lies at 960 ampere hours per kg (Ah/kg). In practice, once reaches capacities of about 200 to 250 Ah/kg because" this indicates that the cost calculations for the raw material amount of iron is much higher than the naive electrochemical equations, it migh tals obe comparable for the cathode reaction which would be bad but from descriptions for other electrode producing methods this might be wrong or out of date (filed 1978) check with that starved electrolyte nickel iron battery paper to see if can extract data on the actual performance vs. theoretical that they acheived
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| note the tendency to use diffusion bonding to connect fibers involved with fiber elecgtroe plaques, in many cases no tmentioned but may be important. Can probably calculate bulk specific resistance with and without bonding, contact resistance between 2 metals just touching not bonded can be found in references.
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| http://www.freepatentsonline.com/4250236.html says lithium hydroxide not needed "tubular electrodes"? "bonded iron plastic elctrodes"? Maybe an electrically conductive polymer would eb convenient maybe with metal fibers embedden in it "The positive electrodes were intentionally made with larger capacities than the negative electrodes" it shoudl be the other way around, otherwise you risk reacting the entire iron electrode during discharge and the iron usually provides some of it's own current collector matrix, maybe they made a mistake or maybe they did it on purpose for testing or something.
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| http://www.freepatentsonline.com/4250236.html
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| still doesn't explain how the variation in electrode geometry changees with charg/discharge cycles, but it seems that it is assumed that it stays more or less the same for some reason i.e. an electrode that has a high surface area to weight ratio when new will continue to have one, and without the need for additives or anything like that. Maybe the hydroxide precipitates out right after being formed and stays more or less put on the surface, and likewise does nto travel far during charging though ther must be some diffusion and maybe this is part of what limits battery life. Alternatively on in combination with this, maybe the processes during reformation of the electrode during chargnine are remarkable symmetrical with the ones during recharging, leading to a very slow reduction in surface roughness/porosity, or it usually goes up over time so as long as you start high engouh to be good you're okay.
| |
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| Still need to identify the temperature dependent capacity loss mechanisms
| |
| http://www.freepatentsonline.com/4132547.html another electrode one for the iron electrode, there are so many am skipping most of them, they can be found by searching easily
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| http://www.freepatentsonline.com/6335120.html polymer support matrix , helps explain the method used to make the electrode in the sealed nickel battery testing doc, applies to both electrodes, why would you add syncrystallized materials they mention? could semimelting of the polymer work to provide adhesion thereby replace some of the ingredients here reducing ingredient count?
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|
| |
| Performance/capacity loss mechanisms identified thus far:
| |
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| http://www.freepatentsonline.com/4236927.html I think mentioned that the interfaces between the iron particles in a sinterd electrode can oxidize with some electrode production methods, increasing the resistance of the bulk of the electrod's current collecting matrix to high level,
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| Oxidization of the iron to iron oxide causes electrode passivation, the addition of something to provide sulfide ions in electrode or the electrolyte causes reductino of the pxide on an ongoing basis, but eventually the sulfide oxidises to sulfate and doesn't go back,
| |
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| http://www.freepatentsonline.com/4250236.html says passivation occurs more so at *low* temperatures, not higher , also points out depletion of sulfide is one mechanism by which it is due to oxidization of sulfide to sulfate
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| The marketing material for e.g. nickel-iron-batteries.com indicates that there is a reaction that occurs which produces capacity loss with time and is more problematic at higher temperatures. This has not been identified yet and should be.
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| Activation of iron electrodes:
| |
| http://www.freepatentsonline.com/4250236.html so sound like pretty much a mattery of getting and keeepinng oxides off and keeping them off
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B9D09-4XS7F7F-1Y&_user=10&_coverDate=06%2F15%2F2010&_alid=1757708553&_rdoc=4&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=62089&_sort=r&_st=13&_docanchor=&view=c&_ct=2063&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=8cc228681b8c7fe749c54ac6ede1fad4&searchtype=a might be duplicate
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| http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TH1-3VR6J5Y-2&_user=10&_coverDate=09%2F30%2F1996&_alid=1757708553&_rdoc=1&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5269&_sort=r&_st=13&_docanchor=&view=c&_ct=2063&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=9d946a5af21722601c868ded3c95c8ed&searchtype=a might be duplicate
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| There are a great number of patents on electrodes, a lot to learn here for the background and a lot of good ideas. Apparently searching for nickel iron battery patents turns up very little but there are a huge number of good and valuable patents on the constituent parts and electrolyte which can be found with the appropriate search terms incormporating some knowledge of how the batteries work.
| |
| http://www.freepatentsonline.com/result.html?p=1&edit_alert=&srch=xprtsrch&query_txt=Iron+sintered+electrode+battery&uspat=on&date_range=all&stemming=on&sort=relevance&search=Search
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| No doubt this applies to searches in other venues as well like on sciencedirect etc.
| |
| | |
| While at first it appears there is relatively little info on these batteries there is a vast amount just under the surface that can be mined out and is fairly informative. Clearly after the information is mined out of the public spaces there will still be plenty left squirreled away by companies for one reason or another that is just not available to us. Some of this will need to be re figured out on paper by someone with some chemistry knowledge/ rediscovered though prototyping/testing/research.
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| aluminum air if coudl use aluminum elecrdodes from clay wonder how to make the gas permeable electrode though maybe coudl metallize a gas permable polymer layer with vacuum vapor deposition or similar or could maye the polymer slighlyt conductive and embed metallic fibers or similar
| |
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| check out other ways to make active iron electrodes are probably lots of them, includes a low solubility sulfide mixed in the iron or added in excess to the electrolyte, adding sulfide to the iron electrode, other ways of getting sulfite where it needs to be, apparently present as an impurity in adequate amount in some iron anyway so thats handy.
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| nickel zinc might be worth lookin g into since they have higher cahrge/discharge efficiency are more efficient
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| http://edison.rutgers.edu/battpats.htm patent 01488480 describes some failure modes and fix looks like ause for the waste glycerine from biodeisel too
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| searchable archive of the pdfs which I ocred, I tried to upload this to the wiki but it is more than 7 megs and not a permitted file type (.zip) not can batch uploading of PDFs be done, so maybe someone else can put this information on the wiki where it will not disappear in the future as it will on zippyshare, but will rather remain conveniently searchable for future developers: http://www30.zippyshare.com/v/76183680/file.html
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| why is it that edison keeps mentioning that sulfur is undesirable in the vulcanized rubber in the insulators but in modern batteries is is used to acitvate the electrode?
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| yet another optio nfo the anode is to take copper crystals and iron particles and compress them into a blockL 2683182 says low purity
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| iron can be used for this
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| http://www.freepatentsonline.com/5151162.html electrically conductive polymers, maybe some of them would make sense as a conductinve substrate that's easy to make and low cost
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| http://www.freepatentsonline.com/3836397.htm another one on iron electrode activated with sulfur etc not sure what the other parts were
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| http://www.freepatentsonline.com/3819413.html nother iron electrode
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| http://www.freepatentsonline.com/4844999.html porous electrode prob nihm
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| http://www.freepatentsonline.com/6265112.html another
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| http://www.freepatentsonline.com/7691531.html primary battery with nickel oxyhydroxide there seems to be no attempt make to contact the actigve material with a matrix bu it is a high current discharge battery probably capable of more than 1C. read again maybe there are spherical particles, also the crystal structure might be a reason , also it expands after being added to battery apparently so that might be causeing force if there are conductive particles too, could be a useful wasy to get hthe needed force
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| http://www.freepatentsonline.com/6265112.html another for fibrous electrode looks relatively useless for us
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| http://www.freepatentsonline.com/4623600.html high stresses exist in the electrode applies to NiMH but check the molar volume change for nife might matter also streses caused buy gas pressure
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| http://www.freepatentsonline.com/4016091.html says nickel coated steel wool is good
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| http://www.freepatentsonline.com/4029132.html again steel wool
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| http://www.freepatentsonline.com/3849198.html
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| http://www.freepatentsonline.com/3941614.html
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| http://www.freepatentsonline.com/3849198.html
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| http://www.patents.com/us-4519425.html diffusion bonded steel wool? also mentions vacuum impregnation and hand pasted and centrifuge
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| How hard would it be to make the nickel cloth again? if diffusion bonding is needed then that reduces the benefit of using steel wool and cloth can't release inhalable fibers when you dont want it to , maybe sintering not so bad either would be durable too , oh it nickel plating of the wool happens after diffusion bonding it says
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| maybe
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| mayybe beat or vacuum clean or blast with high pressure air the steel wool to reduce the amount of small fibers involved to reduce amount of stuff that migh tbe released subsequently maybe no point nickel metal anyway
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| http://www.nmfrc.org/epadocs/1994f.htm on chemicall yplating steel wool
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| maybe nickel foil but without compression no probably not need the metal scaffold to be condictive throughout maybe a method could be developed to use salt or sugar and get the nickel foil bit sto bond with electrochemical plate-out
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| maybe plate-out on the active material or a polymer matrix?
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| check the polymer paste methods again maybe flouropolymer not needed coudl use a different material combo they mention also they explain why they use fluoropolymer, highly hydrophobic, maybe a substitute can be found.
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| also check the conductive pyrolyzed plastic again check conductivit of activated carbon etc to see conductivity of pyrolized biomass
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| http://acs.omnibooksonline.com/data/papers/1997_ii454.pdf looks very high 30 ohm/cm vs 6.9 microohm per cm for nickel, if the plaque is 10% dense specific resistivity of the resulting matrix material pretty high 300 ohm/cm maybe it is a lot lower with pyrolized polymers
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| http://webcache.googleusercontent.com/search?q=cache:VngbRXiriPcJ:acs.omnibooksonline.com/data/papers/2004_E060.pdf+http://acs.omnibooksonline.com/data/papers/2004_E060.pdf&hl=en&gl=ca says 1.99177x10-3 δ /cm which is plenty low esp if combine switha central nickel rod or nickel wire
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| that US3853624.pdf file gives an idea of the sort of fiber density and size that is suitable for electrodes
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| Maybe thixotropic material to prevent escape, have a look at gells again do the diffuse and sort of spread throughout a liwuid they are immersed in or stay solid
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| maybe the nickel plating process would electrically attach the wool together appropriately
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| wool needs to be cleaned adequately first
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| with the iron electrode make it from scratch
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| What to do about the need to obtain nickel from environment in abundance?
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| if do buy stuff needs to be commodity as possible so no buyin nickel wool or electroplate stuff then
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| That leaves the polymer maybe dense polymer fibers woudl work
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| bickel plated bolts for final termination, and probably a bit more fragile (though actually carbon fiber is pretty tough) so might want to make the branching of the fiber stuff heirarchical if can maybe test it for wtrenght first also extra dense can be done easily also support it in the casing of the battery with foam supports to distribute loads due to shock etc and make it a block instead of a plate maybe check the tensile strength of pyrolized plastics of varying sorts esp common and cheap ones remember carbon fiber is made by pyrolizing aramid right and we can make polyaramid 11 or whatever see wikipedia under biopolymers
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| need to find the patents that mentioned downsides of including carbon or graphite in the electrodes on either side
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| block can have veritcal and horizontal holes etc. easily to allow gas to excape s
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| for heirarchy could use fiber and powder together
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| need to have contingency pland in case a certain commodity no longer available hardly, also need co calculate costs as go along they have to be less than commercial batteries, if as mentioned above only a quarter of the active electrode on iron side actually gets used (also tells how much material need to sinter to make the electrode), also on the nickel side need to know what fraction of active material gets used
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| http://www.freepatentsonline.com/6335120.html (duplicate) Several types of electrode exist, in particular sintered electrodes and non-sintered nickel electrodes, also referred to as impasted or plasticized electrodes.
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| maybe rods would be okay if nickel mulit strand wire is avilable or something
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| http://www.freepatentsonline.com/4064331.html the patent on pyrolized resin and carbon black being used as the support matrix
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| nickel plated screws
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| http://www.freepatentsonline.com/4663256.html anothe plastic emulsio n type one
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| "Eagle Pitcher Ni " is a commrercial plaque sutiable fo rht enickel side
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| ahttp://www.freepatentsonline.com/4540476.html a good one, forming nickel electrode straight on the electrode electrolytically looks like this could be transferred from a main electrode to the acceptor electrode in an electrode production tank too so you could form nickel electrodes from nickel ingot (need to check solubility of hydroxide)if you could get metal for some reason checked alibaba though and looks like it is more expensive substantially actually ,
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| damn, went back to look at some of the scientific articles and the urls are all broken and cant be fixed. no correlation between url and articles at all .search browser history to find the title and put them with the urls so can find the articles again
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| scrap nickel prices? with electrolytic loading maybe particularly easy to use scrap metal though of course it can be used anyway in one way or another.
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| find what fraction of nickel can expect to be actually used for a battery like with iroon eectrode compare for different electrode types esp edison and nickel plated steel wool, in the scientific docs that describe construction of cell this would be revealed, maybe in some patents too, remember seeing the information on weight and amp hour capacity of a pocket electrode by edison in his patents, need to look it up again, the efficiency will probably be a lot higher for a pasted electrode.
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| bulk conductivity of steel wool at large medium and small scales
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| Okay my browser malfunctioned when I was searching for the names of the articles from my history and wiped out the history. So I search again for the best ones and started copying the titles downWe basically want all of them that mention nickel iron specifically and most of the others that relate to eletrodes made from nickel oxyhydroxide, and metallic iron and/or iron oxides. The electrode ones may not mention "nickel iron" per se because e.g. a good iron electrode in nickel iron battery can also be used in many other battery chemistries.
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| searched "nickel-iron" battery went through to end of second page
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| "nickel-iron" storage cell searched first page only one up at the top
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| "nickel/iron" battery searche dto the end of second page
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| Nickel iron battery need to record searched to the end of the 3rd page page
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| Nickel iron electrode record went through thr first 2 pages migh tbe more
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| also can look at the related papers section
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| Assessment of performance characteristics of the nickelnext term---previous termiron cellnext term
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| Self-discharge of Fe–Ni alkaline batteriesnext term
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| The role of FeS and (NH4)2CO3 additives on the pressed type Fe electrodenext term
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| The electrochemical properties of Fe2O3-loaded carbon electrodesnext term for previous termironnext term–air previous termbatterynext term anodes
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| Effect of metal-sulfide additives on electrochemical properties of nano-sized Fe2O3-loaded carbon for Fe/air batterynext term anodes
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| Passivation of ironnext term in alkaline carbonate solutions
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| Electrochemical characteristics of ironnext term carbide as an active material in alkaline previous termbatteriesnext term
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| Temperature limitations of primary and secondary alkaline battery electrodesnext term
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| 97/03847 Performance characterization of sintered ironnext term electrodes in previous termnickel/ironnext term alkaline previous termbatteriesnext term
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| SECONDARY BATTERIES - NICKEL SYSTEMS Electrodes: Nickel
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| Assessment of performance characteristics of the nickelnext term---previous termironnext term cell
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| Nickelnext term-based rechargeable previous termbatteriesnext term
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| Developmental studies on porous iron electrodesnext term for the previous termnickel---ironnext term cell
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| Performance characterization of sintered ironnext term electrodes in previous term nickel/ironnext term alkaline previous termbatteriesnext term
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| On the key importance of homogeneity in the electrochemical performance of industrial positive active materials in nickel batteriesnext term
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| Electrochemical behaviour of Teflon-bonded ironnext term oxide previous termelectrodesnext term in alkaline solutions
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| Rechargeable alkaline iron electrodesnext term high curent though
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| Performance characterization of sintered ironnext term electrodes in previous termnickel/ironnext term alkaline previous termbatteriesnext term
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| The role of lithium in preventing the detrimental effect of ironnext term on alkaline previous termbattery nickelnext term hydroxide electrode: A mechanistic aspect looks like not just about nihm may be some applicable to nife too
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| Role of activation on the performance of the ironnext term negative previous termelectrodenext term in previous termnickel/ironnext term cells
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| Rechargeable alkaline iron electrodes
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| Microstructure changes to ironnext term nanoparticles during discharge/charge cycles The discharge capacity of the first cycle was extremely high, 510 mAh/g-Fe, at a current density of 200 mA/g-Fe, check what that is well, it;s 510 Ah per Kg as compared with the ~250 figures in the patents for sintered electrodes with reduced salts on their surfaces (a high rate one) and 960
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| Really interesting looking :\
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| Assessment of performance characteristics of the nickelnext term---previous termironnext term cell
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| SECONDARY BATTERIES - NICKEL SYSTEMS Nickel–Iron
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|
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| SECONDARY BATTERIES - NICKEL SYSTEMS
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| SECONDARY BATTERIES - NICKEL SYSTEMS Electrodes: Iron
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|
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| The nickel/ironnext term battery
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| A nickel-iron batterynext term with roll-compacted previous termironnext term electrodes
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| Less interesting:
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| The role of lithium in preventing the detrimental effect of ironnext term on alkaline previous termbattery nickelnext term hydroxide electrode: A mechanistic aspect
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| Iron/next termcarbon-black composite nanoparticles as an previous termironnext term electrode material in a paste type rechargeable alkaline previous termbatterynext term
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| Research, development and demonstration of a nickel—iron batterynext term for electric vehicle propulsion there are several papers with this term LO
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| Microfibrous nickelnext term substrates and electrodes for previous termbatterynext term system applications can't use them anyway most likely though maybe The fabricated previous termnickelnext term electrodes that included a supporting previous termnickelnext term mesh in the substrate tested in a 26% KOH half-cell delivered a specific capacity of more than 250 mAh/g of the electrode weight (i.e. fibrous substrate, previous termnickelnext term mesh, and active material) at a 1.0 C discharge rate. An Auburn electrode without a previous termnickelnext term mesh tested in the same half-cell attained a higher specific capacity of 268 mAh/g at a 1.37 C discharge rate. The substrates used in these electrodes had porosities of 95–97%, and greatly improved the specific capacity of the previous termnickelnext term electrode. With the use of the previous termmicrofibrousnext term electrode, improved specific energies of previous termnickelnext term-based cell and previous termbatterynext term designs are possible. When assembled in a previous termnickelnext term–hydrogen (Ni–H2) boilerplate cell, the specific capacity of nearly 230 mAh/g was observed for the previous termnickelnext term electrode at a 0.5 C rate during the 127th cycle test.
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| Assessment of performance characteristics of the nickelnext term---previous termironnext term cell
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| The electrochemical generation of ferrate at pressed ironnext term powder previous termelectrode:next term comparison with a foil previous termelectrodenext term
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| The role of FeS and (NH4)2CO3 additives on the pressed type Fe electrodenext term
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| Alkaline poly(ethylene oxide) solid polymer electrolytes. Application to nickelnext term secondary previous termbatteriesnext term
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| least interesting
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| Importance of alkaline accumulators in the application of renewable resources , can tell something about the needed performance reqs
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| Alkaline Battery Separators
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| The role of halide ions on the electrochemical behaviour of ironnext term in alkali solutions
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| Nickelnext term-based rechargeable previous termbatteriesnext term
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| maybe or clearly probably only applicable to nihm but didn't want to loose
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| Effect of zinc and ironnext term ions on the electrochemistry of previous termnickelnext term oxide previous termelectrode:next term slow cyclic voltammetry
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| An electrochemically impregnated sintered-nickel electrodenext term An electrochemically impregnated sintered-previous termnickelnext term porous previous termelectrodenext term with a capacity of 225 ± 10 mAh per g of active material has been developed nihm, can calculate from wikipedia how much that is relative totheoretical also in one of the above it was mentioned the overall weight of the electrode for a fibrous electrode vs. current per gram, could make asumptions actually said it was 97 oercent porous so that tells how much but migth be weightin the water too still puts a lower boundary
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| Electrocatalysis of anodic oxygen evolution at the nickelnext term hydroxide previous termelectrodenext term by ferric hydroxo species in alkaline electrolytes
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| The significance of electrochemical impedance spectra recorded during active oxygen evolution for oxide covered Ni, Co and Fe electrodesnext term in alkaline solution
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| The influences of some additives on electrochemical behaviour of nickel electrodesnext term
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| The role of lithium in preventing the detrimental effect of ironnext term on alkaline battery previous termnickelnext term hydroxide previous termelectrode:next term A mechanistic aspect
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| The effect of lithium in preventing ironnext term poisoning in the previous termnickelnext term hydroxide previous termelectrodenext term
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| [[Category: Research]]
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| [[Category: Notes]]
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