30 Oct '13, 11am
A123 Partners With SolidEnergy To Achieve 4X Energy Density In Lithium-Ion Batteries
Conventional lithium-ion batteries are currently in the low 100 Wh/kg range. About 110. Multiply that by four, and you have a whopping 440 Wh/kg. This technology would reduce the weight of the Nissan Leaf’s battery from 660 pounds (due to its below-average energy density of 80 Wh/kg) to a measly 54 pounds. That is so lightweight, you could lift it with one of your bare hands! (Well, if you are fairly strong.) That would make the Leaf light enough that it could travel much further on a charge, or would allow for more batteries to be put in the Leaf, also allowing for much longer range.