Rice University Researchers Develop What May Be World’s Smallest Battery

Researchers at Rice University have published details of a novel, nanowire-based rechargeable lithium ion energy storage unit which could potentially be used to power future generations of tiny medical devices and sensors. The technology, which was described in last month’s Nano Letters, comprises centimeter-wide arrays incorporating thousands of the nanowire devices, each about 150 nanometers wide. At a height of 50 microns, the team’s experimental batteries are similar in diameter to a human hair.

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