Liquid metal hydrogel stretches 900% and powers batteries at temperatures of −4°F

South Korean scientists have developed a groundbreaking liquid metal hydrogel that can stretch to 900% of its original size and still function as an electrolyte to power batteries even in sub-zero temperatures. This innovation could revolutionize flexible electronics and wearable technology, offering a solution to the limitations of current materials. The hydrogel's ability to maintain performance in extreme cold opens up possibilities for applications in harsh environments, potentially transforming everything from remote weather stations to advanced medical devices.