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Discussion Starter #1
Hello all,

where ca I buy high energy density batteries? Seems that there are only few sellers of them out there.

Thank you!

Best greetz from Germany

KirillSp
 

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Hi Kirill

Could you try to be a little more specific.
I suppose that you are not looking for Zinc-air batteries for your hearing aid. Because they are high energy density but only primary and probably not really up to the task of driving a car.

But try to put some numbers on what you are looking for, and also a if todays available Lipo is high energy enough, then you have multiple choice.

If Your looking for over 200wh/kg then you might get a hard time finding something to buy yet.

Regards
/Per
 

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Discussion Starter #3
Im sorry, of course, here are more details:

I think the most commercial technology is lithium-based. A good exaple I know of, are Kokam cells, they are higher than TS-cells, but not as commercial as TS.
The technology should be litium-based, but other high-densitys are also welcome as well.
Of course, the energy density should be as high as possible along with high cacle life as well.

Thanks a lot!
 

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Discussion Starter #4
Any new info about batteries yet? You told me about multiple choice of batteries, please let me know, thanks!
 

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found these.

http://www.maxamps.com/Lipo-10000-222-Pack.htm

181 -200wh/kg

Best I've seen so far.
And that is 20C capable cells.
Only 300 cycles guarantied though.

Could be other even higher at that site. haven't gone through the whole site.

Otherwise Kokams at
http://www.cleancarb.com/index.php?option=com_content&view=category&layout=blog&id=38&Itemid=57

has 177wh/kg in their 240ah cells high energy cells

EIG has 140wh/kg in there 21h Lipo cells.

K2 claims to get about 190wh/kg in their new LiFePo 45ah pouches but they are not available yet.

DBM energy claims over 300wh/kg in their solid state LiMp batteries
http://sufiy.blogspot.com/2010/10/lithium-metal-polymer-battery-from-dbm.html
http://www.dbm-energy.com/
Not sure how true that is but the car seems to runs 600km on one charge so there is something in that car.

Regards
/Per
 
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