Imagine batteries stretchy enough to flex inside clothing or under the skin. Unusually elastic batteries could one day help power flexible electronics worn on or implanted inside the body, researchers say
“Some relatively simple but powerful ideas allow one to construct rechargeable, lithium-ion batteries that have the physical properties of a rubber band,” says John Rogers, a materials scientist at the University of Illinois at Urbana-Champaign.
Applications may include robotic skin and wearable health monitors, he added.
Increasingly, scientists are developing flexible electronics like video displays and solar panels that could make their way into clothing or even bodies. One limitation of these devices is the dearth of equally flexible batteries to power them or store any energy they generate.