Stretching the capacity of flexible energy storage

Some electronics can bend, twist and stretch in
wearable displays, biomedical applications and soft robots. While
these devices’ circuits have become increasingly pliable, the
batteries and supercapacitors that power them are still rigid. Now,
researchers in ACS’ Nano Letters report a flexible supercapacitor
with electrodes made of wrinkled titanium carbide—a type of MXene
nanomaterial—that maintained its ability to store and release
electronic charges after repetitive stretching.