![3D Printer Produces Lithium Ion Batteries the Size of a Grain of Sand [VIDEO]](http://townsquare.media/site/136/files/2013/06/630x420_MicroBattery.png?w=980&q=75)
3D Printer Produces Lithium Ion Batteries the Size of a Grain of Sand [VIDEO]
A team based at Harvard University and the University of Illinois at Urbana-Champaign have created a way to use 3D printing to create microbatteries that could supply electricity to tiny devices in the medical and communication fields.