Automakers could slash costs of electric cars by the 2015 model year with a battery chemistry breakthrough from the IBM tech company using its air battery.
In theory, this air battery's energy density can be much higher because the cathode is replaced by the atmosphere!
Found online: "At present, the world biggest grid scale battery is a bank of nickel cadmium cells in Fairbanks, Alaska, which can produce up to 52 MW of emergency backup power for about 15 minutes."
Also found online...
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Envia Systems claims its breakthrough boosts lithium-ion battery density from a current level in the 110-140 watt-hours/kilogram range to well past 400 watt-hours/kilogram (Wh/kg).
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