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Discussion Starter #1
The revolutionary A123 cell 32157 (32mm dia, 157mm long) appears to be about 30 Wh.

Has anyone seen the specs for this cell?

Lutz says there are 500 cells in the Volt.

14000 Wh/500 = 28 Wh per cell. I believe the Volt cells will be the 32157.

Any information on how difficult it is to manufacture these in volume and in cost?

Thanks
 

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Isn't the Volt's battery supposed to have 16kWh capacity?
 

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Bob Lutz also said that the batteries were larger, and rectangular. The quote was "about the size of a deck of cards".

I don't think they're looking at using the standard A123 batteries, but someting custom-made for the Volt.
 

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Discussion Starter #4
Rectangular would be even more interesting as it increases the unit volumetric capacity and improves heat transfer.

I am still worried about A123's manufacturing prowess.
 

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The revolutionary A123 cell 32157 (32mm dia, 157mm long) appears to be about 30 Wh.

Has anyone seen the specs for this cell?

Lutz says there are 500 cells in the Volt.

14000 Wh/500 = 28 Wh per cell. I believe the Volt cells will be the 32157.

Any information on how difficult it is to manufacture these in volume and in cost?

Thanks
According to official statements made recently* by Denise Gray (GM's Director of Hybrid Energy Storage Systems) the Volt will actually "create 16kWh using less than 300 cells" the pack apparently weighs nearly 400lbs and packaged in a T-shape to fit in it's currently designed housing. So that tosses that theory (based on your math anyways) the density appears to be much higher.

*Automotive News 8/15/08

HTH
WopOnTour
 

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Discussion Starter #7
For the volt, unpackaged battery weight ==

16 kWh / 100 = 160 kg - add about 25% for packaging.
 
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