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Old 02-02-2009, 11:03 PM   #21 (permalink)
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Entropy Production: Sodium-ion Batteries

My only hope is that they can figure out a reliable method of DIRECTLY substituting one of lithiums cheaper relatives like sodium or potassium, both alkalie metals they should be interchangable with some side effects, namely different capacities.

WebElements Periodic Table of the Elements

Note I am NOT talking about existing super hot sodium batteries, sodium should be able to used exactly as lithium.

Lets hope someone figures out a good way of reducing it and making room temperature sodium or potassium ion batteries, not to mention they could potentially have more capacity.

Remember this?
Super iron battery - Wikipedia, the free encyclopedia

Potassium & sodium are both stronger materials for batteries if they can be constructed safely.

I still have hope someone will pick up the ball.

Potassium and sodium are both abundant and cheaper than dirt.

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Old 02-04-2009, 07:14 PM   #22 (permalink)
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I read somewhere that Bolivia has quite a bit of lithium (I don't know where I read that). The only source (sales) I have locally is about $800. for a 36V lithium battery, and means cutting a panel to install it that covers the old lead-acid 36V. I sure wish new technology would hurry up - I am waiting for prices to fall like a rock (like calculators, TVs, oil)
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Old 02-04-2009, 07:47 PM   #23 (permalink)
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Lithium battery prices have fallen like a rock but there are still no inexpensive methods for Battery management on the market that actually work. Also the price is still high but not as high. $20k down to about $4-5K for me if I were to convert my c-car

http://www.diyelectriccar.com/forums...-35-26535.html
(this isn't the 1st to go under $0.50 a wthr)
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Old 02-04-2009, 08:21 PM   #24 (permalink)
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What about li-poly technology? Can can these type of batteries be constructed big enough for ev's. I know the one's used for R/C are relatively inexpensive.
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Old 02-05-2009, 12:15 PM   #25 (permalink)
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This morning- Chile, Bolivia, whatever. Just NOT Venezuela :
Summary
Sociedad Quimica y Minera de Chile SA (SQM) is a Chilean producer of specialty plant nutrients and chemicals. It operates nine production plants and its business is divided in four areas: Specialty Plant Nutrition (SPN), engaged in the production of fertilizers and nutritional solutions under the Ultrasol, Qrop, Speedfol and Allganic brands; lithium exploitation and production of lithium carbonate, lithium hydroxide, lithium metal; iodine extraction and the production of iodine derivates, and the production of industrial chemicals, such as sodium nitrate, potassium nitrate, boric acid and potassium chloride, among others. The Company has commercial offices in more than 20 countries represented by wholly owned companies and affiliated companies in Europe, the Americas, Asia and Oceania. In addition, the Company’s products are sold in more than 100 countries through its worldwide distribution network. More from Reuters
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Old 02-05-2009, 01:20 PM   #26 (permalink)
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Since this seems thread now seems to be a repository for obscure battery technology, have some Zinc-Air batteries.
Zinc-air battery - Wikipedia, the free encyclopedia
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Old 02-05-2009, 04:44 PM   #27 (permalink)
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Quote:
Originally Posted by captainslug View Post
Since this seems thread now seems to be a repository for obscure battery technology, have some Zinc-Air batteries.
Zinc-air battery - Wikipedia, the free encyclopedia
That isn't obscure enough, some companies actually use them, and they aren't rechargable in a normal way.

Quote:
Originally Posted by my first gmc View Post
What about li-poly technology? Can can these type of batteries be constructed big enough for ev's. I know the one's used for R/C are relatively inexpensive.
Isn't that the same as the $.35 ones I linked to? LIFEPO4 is much more stable and is the best lithium battery available for an EV at the moment, that isn't to say the the sulphur or magnesium varieties might not overcome it with time.

Last edited by rmay635703; 02-05-2009 at 09:58 PM..
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Old 02-05-2009, 11:44 PM   #28 (permalink)
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Quote:
Originally Posted by rmay635703 View Post
Isn't that the same as the $.35 ones I linked to? LIFEPO4 is much more stable and is the best lithium battery available for an EV at the moment, that isn't to say the the sulphur or magnesium varieties might not overcome it with time.
My bad
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Old 07-05-2011, 07:25 AM   #29 (permalink)
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100 billion tonnes of rare-earth metallic deposits found ocean bed off Hawaii and Tahiti:

Vast reserves of vital rare earths found in ocean bed - environment - 05 July 2011 - New Scientist

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