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New material aims to make lithium-ion batteries safer

Dan Nystedt | Sept. 25, 2009
ITRI developed a polymer that keeps lithium-ion batteries from overheating even if severely damaged

E-One makes batteries for BMW's Mini E, an experimental electric car that uses lithium-ion batteries.

E-One's latest electric car battery prototype, the eTaxi BEV, costs US$100,000 currently, gives a car a range of 120-150 miles (190-240-kilometers) before needing a recharge, charges in two to five hours and accelerates from 0 to 60 miles per hour in 7 seconds. The battery contains 5,000 cells, compared to the 3 to 8 cells found in common laptop batteries.


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