Opportunities for High-Entropy Materials in Rechargeable Batteries

High entropy materials, a horizon-broadening class of materials with complex stoichiometry, have gained significant interest recently. The ideal regulation and the attractive synergy effect make high entropy materials promising candidates for energy storage devices. In this Perspective, we present a survey of high entropy materials as anodes, cathodes, catalysts, and solid-state electrolytes in rechargeable batteries. The entropy-stabilized rock-salt-type Co0.2Cu0.2Mg0.2Ni0.2Zn0.2O is highlighted due to its multiple functions. Suggestions on future perspectives of HEM as an important role in next-generation batteries are given.