NEI Corporation Developing Li-ion Batteries With 250 Wh/kg At Pack Level
NEI Corporation announced that initiated development of water-based lithium-ion batteries, which – according to website describing the target for this project – will have 250 Wh/kg and 750 Wh/l.
This is still below the top rated 18650 lithium-ion cells produced by Panasonic, but NEI Corporation is aiming for those numbers at the pack level, which means that the cell itself probably would need to be over 300 Wh/kg.
The key difference is the use of water-based electrolyte, which to date wasn’t a good idea because some drawbacks:
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NEI Corporation Developing Li-ion Batteries With 250 Wh/kg At Pack Level