Sunday, March 6, 2011

New Material Could Reduce Charge-Time for Batteries by a Factor of 40

Lithium-ion batteries can charge far faster than they do in most laptops, but rapid charging exposes these batteries to premature failure. Now, researchers at Rensselaer Polytechnic Institute have developed a new nanomaterial that could allow lithium-ion batteries to charge 40 times faster.

Dubbed a “nanoscoop” because of the distinctly ice cream cone-like shape of the particles, the material absorbs the stress that occurs when battery anodes are charged rapidly.

“Charging my laptop or cell phone in a few minutes, rather than an hour, sounds pretty good to me,” says engineering professor Nikhil Koratkar. Electric automobiles may also one day benefit from the breakthrough.

Results of the project will be published in the journal Nano Letters.

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