Researchers have developed a new hydrogel material that can stretch up to nine times its original length and continue working even in freezing temperatures. The breakthrough could help improve future wearable electronics, flexible batteries, and other energy storage devices that need to operate reliably in harsh environments. The study was led by Professor Sungjune Park […] The post Scientists create super-stretchy hydrogel that keeps working at -20°c appeared first on Knowridge Science Report .