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March 7th, 2005
Altair's patented modification is to make the anode surface out of lithium titanate nanocrystals, using chemical tricks to give it a surface area of about 100 square metres per gram, compared with 3 square metres per gram for carbon.
The more rugged lithium titanate anode should make it possible to recharge the battery as many as 20,000 times says Roy Graham, development director at Altair. A longer lifespan should also be better for the environment, he says. "The continual use of polluting cobalt oxides is questionable."
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