A high-entropy cathode catalyst with multiphase catalytic capability of Li2O2 and Li2CO3 enabling ultralong cycle life in Li–air batteries

High entropy design guidance enables a modulated broad d-band of cathode catalyst with efficient d–p coupling for all reactants, realizing multiphasic catalytic capability of Li 2 O 2 and Li 2 CO 3 and ultralong cycle life in Li–air and Li–CO 2 batteries.