28 Aug '14, 9pm

How to Turn Tires Into Batteries for Electric Cars

How to Turn Tires Into Batteries for Electric Cars

Scrapped car tires have been used for construction material and recycled into floor mats and shoe soles. Now they might find their way back into hybrid and electric cars, but under the hood. Scientists at Oak Ridge National Laboratory have devised a method to convert tire rubber into a carbon material for lithium-ion battery anodes. Conventional lithium anodes are made of the graphite, a natural carbon material that is mined. The Oak Ridge researchers, led by materials chemist Parans Paranthaman, have found an alternative waste source for the carbon anode. In a paper published online in the journal RSC Advances , they outlined a straightforward process to convert waste tire rubber into nanoporous carbon. They first pulverize waste tire rubber into tiny micrometer-sized pieces, which they break down in a hot sulfuric acid bath. The resulting rubber slurry is filtered, washe...

Full article: http://spectrum.ieee.org/energywise/energy/environment/ho...

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