A High‐Performance Room‐Temperature Li||Ga–Sn Liquid Metal
A room-temperature liquid metal battery with a solid lithium anode electrode and gallium–tin (Ga–Sn) alloy cathode electrode is reported. The Li‖Ga–Sn battery has fast reaction kinetics, a satisfactory specific capacity, high energy efficiency, good rate performance, and stable cyclic reversibility, which is a promising choice for power grid energy storage applications.