Nokia and London-based researchers have developed a coating that use vibrations, including your voice, to charge your smartphone

A group of Queen Mary University of London researchers have been working with Nokia Corporation (NYSE:NOK) to develop a way to find a way to extend smartphone battery lives by recharging them on the go, turning your voice (and other vibrations) into an electric current. The trick is to coat the phones with zinc oxide nanorods connected to the battery with nanowires.

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