China Nonferrous Metallurgy

Multivalent metal ion batteries are expected to become an alternative to lithium ion batteries due to their good safety and low cost. In recent years, some encouraging results have been achieved in the research of such batteries, but the development of cathode materials still faces some practical difficulties. This paper summarized the research progress of intercalated cathodes for multivalent metal batteries in recent years, introduced intercalation mechanism of cathode materials and cathode materials such as oxides (vanadium and manganese oxides and their derivatives), sulfides, polyanionic polymers, and carbon materials. Through analysis and summary, it is concluded that there are problems with slow solvation process and solid-state diffusion in multivalent metal ion systems; the research on the application of intercalated cathode materials provides a direction for the design of electrode materials for future such batteries; and transition metal (Mn, V) oxides, sulfides, and other cathode materials to some extent weakens electrostatic forces and improves dynamics. The future development direction of intercalated cathodes for multivalent metal batteries are forwarded.