Tiny devices liberated by tiny batteries created with 3D printing

06/19/2013 | Forbes

Super small medical devices and other miniature mechanisms now have an independent power source thanks to the efforts of researchers at Harvard’s School of Engineering and Applied Science and the University of Illinois at Urbana-Champaign. Using 3D printing, the researchers have succeeded in producing lithium-ion batteries the size of a grain of sand. The key was the ability of the printer to produce stacks of ultra-thin electrodes assembled "out of plane."

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