Soft, Highly Elastic, and Discharge‐Current‐Controllable Eutectic Gallium–Indium Liquid Metal–Air Battery Operated at Room Temperature

Based on a liquid metal (eutectic alloy with 90 wt% gallium and 10 wt% indium) anode, a soft, highly elastic, discharge‐current‐controllable, cable‐shaped liquid metal–air battery operated at 25 °C, with effective reactions of Ga − 3e − → Ga 3+ and O 2 + 2H 2 O + 4e − → 4OH − is presented. In the liquid metal electrode, indium is used not only to inhibit the corrosion of gallium in the alkaline electrolyte but also to maintain the liquid state...