Self-powered e-watch is powered completely by wrist movements
Monday, November 23, 2015 - 10:00
in Physics & Chemistry
(Phys.org)—Researchers have created a self-powered electronic watch that harvests energy from the wearer's wrist movements for continuous operation. By combining two different energy conversion mechanisms (electromagnetic and triboelectric) in a single hybrid nanogenerator, the device can harvest significantly more energy than previous harvesters that use only a single mechanism.