A semi-immobilized sulfur-rich copolymer backbone with conciliatory polymer skeleton and conductive substrates for high-performance Li-S batteries

A flexible semi-immobilization strategy is reported to purposefully design the semi-immobilized sulfur-rich copolymer as powerful cathode materials with a superior stability, integrated active sites, a conciliatory polymer skeleton, and conductive substrates for Li-S batteries. The as-prepared A-PEI-EGO electrodes enhanced skeleton adsorption capacity and substrate electronic conductivity, resulting in a high reversible capacity and outstanding cycling stability.