Latest in Science

Image credit:

Georgia Tech develops self-charging battery that marches to the owner's beat

49 Shares
Share
Tweet
Share
Save

Sponsored Links

One of the last times we saw the concept of a self-recharging battery, it was part of a high-minded Nokia patent whose ideas still haven't seen the light of day. Researchers at Georgia Tech are more inclined to put theory into practice. Starting from a regular lithium-ion coin battery, the team has replaced the usual divider between electrodes with a polyvinylidene difluoride film whose piezoelectric nature produces a charging action inside that gap through just a little pressure, with no outside voltage required to make the magic happen. The developers have even thumbed their noses at skeptics by very literally walking the walk -- slipping the test battery under a shoe sole gives it a proper dose of energy with every footstep. At this stage, the challenge mostly involves ramping up the maximum power through upgrades such as more squeezable piezoelectrics. Georgia Tech hasn't progressed so far as to have production plans in mind; it's nonetheless close enough that we could see future forms of wearable computing that rarely need an electrical pick-me-up.

All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Share
49 Shares
Share
Tweet
Share
Save

Popular on Engadget

Drako's GTE electric supercar will be a four-motor, 1,200HP monster

Drako's GTE electric supercar will be a four-motor, 1,200HP monster

View
Nintendo says there is no Switch exchange program

Nintendo says there is no Switch exchange program

View
IKEA creates a business unit devoted to smart home tech

IKEA creates a business unit devoted to smart home tech

View
US will reportedly give Huawei another temporary reprieve

US will reportedly give Huawei another temporary reprieve

View
The next Apple Watch may come in titanium and ceramic models

The next Apple Watch may come in titanium and ceramic models

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr