NEI Water based Lithium Ion Batteries.

[RobStark]

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

 

[curiousguy]

so aqueous electrolytes means you cannot go too high above the reduction potential of water. Typically the voltage of aqueous batteries are around or below 2V. So unless some new electrodes are being used which can compensate in capacity the loss in voltage (currently commercial Li-ion batteries operate at 3.7V) i dont see how this is achievable.

typically if water is to be used, usually flow batteries or fuel cells are involved.