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Eesha Khare, 18, of Saratoga, Calif., received the Intel Foundation Young Scientist Award of $50,000 for the invention of a tiny energy-storage device.

Waiting hours for a cellphone to charge may become a thing of the past, thanks to an 18-year-old high-school student’s invention. She won a $50,000 prize Friday at an international science fair for creating an energy storage device that can be fully juiced in 20 to 30 seconds.

The fast-charging device is a so-called supercapacitor, a gizmo that can pack a lot of energy into a tiny space, charges quickly and holds its charge for a long time.

What’s more, it can last for 10,000 charge-recharge cycles, compared with 1,000 cycles for conventional rechargeable batteries, according to Eesha Khare of Saratoga, Calif.

Read more here:  http://www.nbcnews.com/technology/teens-invention-could-charge-your-phone-20-seconds-1C9977955

 

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