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Tiny Batteries With Big Potential

Imagine if the batteries you used to power your appliances were the size of a grain of sand.

On it’s face, it sounds like science fiction at best and functionally ridiculous at worst. But thanks to some clever minds over at Harvard University and the University of Illinois at Urbana-Champaign and a custom-made 3D printer, such batteries actually exist.

A New Capability of 3D Printing

Typically, we think of 3D printing as a technology that allows us to make the things we’ve always made in a new way. What lead study author Jennifer A. Lewis of the Harvard School of Engineering and Applied Sciences (SEAS) and her team proved, however, was that th”>e capabilities of 3D printing are so much more.
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“They have designed a broad range of functional inks—inks with useful chemical and electrical properties,” said a news release from SEAS. “And they have used those inks with their custom-built 3D printers to create precise structures with the electronic, optical, mechanical, or biologically relevant properties they want.”


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