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Novel supercapacitor design could store electricity inside a silicon chip

 "If you ask experts about making a supercapacitor out of silicon, they will tell you it's a crazy idea," said lead researcher Cary Pint, an assistant professor of mechanical engineering at Vanderbilt University. "But we've found an easy way to do it."

To begin, Pint and his colleagues coated porous silicon in carbon and heated it to about 800°C. The process formed a layer of graphene only a few nanometres thick that insulated the silicon from the electrolyte while retaining its highly porous structure.

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