‘Breathable’ electronics pave the way for more functional wearable tech

Science Daily  April 30, 2020 Researchers at the North Carolina State University used the breath figure method to create a stretchable polymer film featuring an even distribution of holes. The film is coated by dipping it in a solution that contains silver nanowires and heat-press the material to seal the nanowires in place. The resulting a few micrometers thick film showed an excellent combination of electric conductivity, optical transmittance and water-vapor permeability and stability in the presence of sweat and after long-term wear. They demonstrated the material’s potential for use in wearable electronics and electrophysiologic sensors…read more. TECHNICAL ARTICLE

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 […]