Enhancement of Electrochemical Performance of Aqueous Zinc Ion Batteries by Structural and Interfacial Design of MnO2 Cathodes: The Metal Ion Doping and Introduction of Conducting Polymers

Aqueous zinc-ion batteries (AZIBs) and, in particular, Zn//MnO2 rechargeable have attracted great attention due to the abundant natural resources of zinc and manganese, low cost, environmental friendliness, high operating voltage. Among various ways improve electrochemical performance MnO2-based cathodes, development MnO2 cathodes doped with metal ions or composites conducting polymers has shown such advantages as increasing specific capacity cycling stability. This mini-review focuses on strategies manganese-based AZIBs.