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Doing some more reading, those batteries you list still have a significantly lower energy density than petrolium. For starters, I think that measuring energy density in W/kg is misleading - the standard measure for that appears to be joules/kg. Even leaving that aside, they're still significantly inferior to gasoline. They provide 3000 joules/kilogram. Gasoline provides over 40 megajoules/kilogram.

So unless I'm missing some implication of their chosen metric, there's still a big gap here.

by Egarwaen on Tue Feb 7th, 2006 at 04:41:50 PM EST
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