An 18-year-old Indian-American girl has invented a super-capacitor device that could potentially charge your cellphone in less than 20 seconds , her device can last for 10,000 charge-recharge cycles, compared with 1,000 cycles for conventional rechargeable batteries.
Source :
Indian Express
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Eesha Khare, 18, of Saratoga, Calif. won the Intel Foundation Young Scientist Award of $50,000. She developed a tiny device that fits inside cell phone batteries, which fully charges the device within 20-30 seconds.