Liquid metal skins turned into power source for stretchable batteries and devices

Nanowerk  November 6, 2023 Liquid metals which behave like liquid at room temperature have unique mechanical and electrical properties which make them favorable for soft electronics and stretchable conductors. They form a thin oxide layer on their surface. Researchers at the Boston University have introduced a new approach where liquid metal oxide served as an electrochemical energy source. By mechanically rupturing their surface oxide, liquid metals formed a galvanic cell and converted their chemical energy to electrical energy. When dispersing liquid metals into an ionically-conductive liquid to form emulsions, this composite material provided ∼500 mV of open-circuit voltage and up […]

A new stretchable battery can power wearable electronics

EurekAlert  January 24, 2020 To develop a soft and stretchable battery an international team of researchers (USA – Stanford University, SLAC National Accelerator Laboratory, China, Singapore) developed a polymer that is solid and stretchable rather than gooey and potentially leaky, and carries an electric charge between the battery’s poles. In lab tests the experimental battery maintained a constant power output even when squeezed, folded and stretched to nearly twice its original length. The thumbnail-sized prototype stores roughly half as much energy, ounce for ounce, as a comparable conventional battery. The team is working to increase the battery’s energy density, build […]