A stretchable battery to power wearable electronics

Read more: People flex and bend. Too bad their gadgets can’t. Now an experimental battery described in the Nov. 26 edition of Nature Communications promises to do just that. Shown here powering a tiny light, the soft battery maintained a constant power output even when stretched to nearly two times its original length. In laboratory tests it also provided consistent power when squeezed, folded and stretched multiple times. A team led by graduate student David Mackanic, in the la