An Ultrastable Aqueous Iodine‐Hydrogen Gas Battery

Rechargeable hydrogen gas batteries are highly desirable for large‐scale energy storage because of their long life cycle, high round trip efficiency, fast reaction kinetics, and hydrogen gas profusion. Coupling advanced cathode chemistries with hydrogen gas anode is an emerging and exciting area of research. Here, a novel high‐performance aqueous iodine‐hydrogen gas (I 2 ‐H 2 ) battery using iodine as cathode and hydrogen gas as the...