Tiny Battery, Big Charge

Tel Aviv University researchers under the direction of Menachem Nathan, Emanuel Peled, and Dina Golodnitsky have developed a fast-charge nanobattery that might protect handheld devices from power source related fire hazards. The nanobattery, measuring ~1 sq. cm, consists of ~30,000 lithium batteries connected in parallel on a 0.5 mm thick nonconducting substrate. It offers the best of both worlds—the internal resistance of a thin-film battery and the high capacity of standard lithium versions. The substrate increases battery charge capacity up to 10 mAh/cm2 . They have been demonstrated good for hundreds of charge/discharge cycles.



(www.sensorsmag.com/0906/RDBattery)

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