Bulk-phase and interface stability strategies of manganese oxide cathodes for aqueous Zn-MnO batteries.

The cyclic stability of the MnO cathodes for rechargeable zinc ion batteries have substantial obstacles due to Mn disproportionation produces Mn caused by Jahn Teller lattice distortion effect in the process of Zn inter/deintercalation. This mini review summarized bulk-phase and interface stability strategies of manganese oxide cathodes for aqueous Zn-MnO batteries from the regulation of bulk electronic state of manganese oxide improves its structural stability and the formation of beneficial SEI layer at the interface of electrolyte. It provides theoretical support for the design of manganese oxide cathode materials for aqueous zinc ion batteries with high stability.