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The American Conservative Case for Electric Vehicles (5 Reasons That Are Not The Environment)

Given the recent election results, it's very likely that there will be sweeping legislative changes in the areas of energy and environme...

Sunday, January 2, 2011

Strain-graded silicon nanoscoops for high power Li-ion battery anodes

Green Car Congress: Strain-graded silicon nanoscoops for high power Li-ion battery anodes: "A team at Rensselaer Polytechnic Institute (RPI) has developed a functionally strain-graded carbon-aluminum-silicon anode architecture that overcomes the normally poor performance of Li-ion batteries for high power applications involving ultrafast charging/discharging rates.

The new anode materials consist of an array of nanostructures each comprising an amorphous carbon nanorod with an intermediate layer of aluminum that is finally capped by a silicon nanoscoop on the very top. The gradation in strain arises from graded levels of volumetric expansion in these three materials on alloying with lithium."