rosskoss

A123Systems Unveils New E-REV Battery Cell for Chevy Volt

On December 2 at EVS23, A123Systems publicly unveiled the lithium ion battery cell that they have co-developed with GM specifically for the Volt. It is a flat “prismatic” cell that is significantly larger than the cylindrical cells that we are used to seeing from A123. The cell is rectangular, and is designed to be stacked within the pack like slices of bread. GM chose a stackable, space-efficient battery format for the Volt so as to minimize the volume of the pack.
Exact specifications of the cell have not been released.

According to A123 engineers at the event, they have also developed proprietary algorithms that can precisely monitor their battery technology’s voltage and state of charge - thus eliminating concerns that the battery could suddenly drain completely empty without warning. They developed this software as a part of their hybrid electric bus program, which is independent of their collaboration with GM.

GM’s Denise Gray has stated in the past that they are developing their own battery management software “in-house”, so it is unclear if A123’s software will be shared as a part of the Volt program.

SLegacy99

Looks small.

4TehNguyen

iTrader: (1)

thats just one of the cells probably, full battery is going to be a cluster of them

Nextourer

"The cell is rectangular, and is designed to be stacked within the pack like slices of bread. GM chose a stackable, space-efficient battery format for the Volt so as to minimize the volume of the pack."