Innovation: Micro Batteries by Jennifer Lewis

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By Kyle O'Donnell

July 19, 2013 at 12:32 AM UTC

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This article is part of the July 22, 2013 issue of businessweek.

Innovator: Jennifer Lewis
Age: 48
Professor of Biologically Inspired Engineering at Harvard

Form and function
Rechargeable lithium ion batteries the size of a grain of sand, with nodes produced by a 3D printer, could power biomedical implants, coin-size sensors, and other tiny electronics.