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Li-ion microbatteries produced via 3D printing

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:3D printing microbatteries miniaturisation

Lithium-ion microbatteries the size of a grain of sand can be manufactured using 3D printing and could supply electricity to tiny devices used in medical and communications fields, says a group of researchers from Harvard University and the University of Illinois at Urbana-Champaign. The team printed precisely interlaced stacks of tiny battery electrodes, each less than the diameter of a human hair to create the microbatteries.

In recent years engineers have invented many miniaturized devices, including medical implants, flying insect-like robots, and tiny cameras and microphones that fit on a pair of glasses. But often the batteries that power them are as large as or larger than the devices themselves-which defeats the purpose of building small.
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