The Best Battery So Far

February 28, 2012 | 2 Comments

Start-up called Envia Systems says it’s built a lithium-ion battery prototype at 400 Wh/kg.  That, if the prototype can scale would be both a new world record, but a deep change in electric vehicle economics. The world record looks secure for now, the battery prototype has third party tests confirming the energy density at the […]

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