Skip to main content
U.S. flag

An official website of the United States government

Stretchable micro-supercapacitors to self-power wearable devices

Date posted
Funding Agency
(Funded by the National Institutes of Health and the National Science Foundation)

An international team of researchers, led by scientists at Penn State, found that arranging micro-supercapacitor cells in a serpentine, island-bridge layout allows the configuration to stretch and bend at the bridges, while reducing deformation of the micro-supercapacitors. The researchers used non-layered, ultrathin zinc-phosphorus nanosheets and 3D laser-induced graphene foam – a highly porous, self-heating nanomaterial – to construct the island-bridge design of the cells and noticed that these micro-supercapacitor arrays can charge and discharge efficiently and store the energy needed to power a wearable device.