MIT fast-charge batteries promise quicker EVs
(Globe Graphic)
Researchers at the Massachusetts Institute of Technology have made a fast-charge lithium-ion battery that could potentially be used to recharge an electric car in as little as five minutes, the Boston Globe reported today.
A "crystalized coating" over the electrodes allows the lithium ions to move more readily and lets the battery discharge about 100 times faster than current batteries, according to MIT studies. Such a torrent could cause explosive acceleration similar to nitrous oxide, but with the added benefit of "refilling" just as fast from an electrical outlet. While the technology is at least several years away, performance automakers will likely make an early jump on it (Tesla and Porsche tuner RUF, which introduced an electric 911 in Geneva, spring to mind).
As at least one reader pointed out, the potential for battery failure due to overheating and exploding is a serious concern for fast-charge batteries, as is the reduced overall life cycle. The Tesla Roadster, which uses 6,831 lithium-ion batteries on its speedy Roadster, has a performance mode that utilizes higher discharge rates, and another that maximizes durability and mileage. In the near future, there will be a battery that does both.
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about boston overdrive
Boston.com reports the latest trends, auto shows and wrings out the newest cars in our city's hellish maze - and across the great roads of New England.In the garage: 2008 MBTA Zone 1A monthly pass, 1995 21-speed Iron Horse. Bill Griffith is an automotive correspondent for The Boston Globe and has reviewed cars for 10 years. He was also the Globe's assistant sports editor for 25 years and the paper's sports media columnist.
In the garage (over the years): 1956 T-Bird, 1959 Nash Metropolitan, 1980 El Camino, 1997 supercharged Camry TRD.
