Ion Pre‐Embedding Engineering of δ‐MnO2 for Chemically Self‐Charging Aqueous Zinc Ions Batteries

, reflecting the promising self-charging capability. Besides, the chemically self-charging ZIBs operate well in multiple modes of constant current charge/discharge/chemical charging. And decent cycling capability can also be achieved at extreme temperatures and high mass loading. This work promotes the development of ZIBs and further broadens the application of inorganic metal oxides in the self-charging systems.