Preparation method of carbon-coated transition metal telluride and application of carbon-coated transition metal telluride in aqueous zinc ion battery

The invention discloses a preparation method of a carbon-coated transition metal telluride and application of the carbon-coated transition metal telluride in an aqueous zinc ion battery. The preparation method comprises the following steps: grinding and mixing commercial transition metal telluride and a conductive carbon source, and transferring the mixed material into a ball milling tank filled with ball milling beads; a planetary ball mill is used for ball milling and mixing to obtain the carbon-coated transition metal telluride, and the carbon-coated transition metal telluride is used as an aqueous zinc ion battery positive electrode material for improving the rate capability and the cycle stability of an aqueous zinc ion battery. Wherein the transition metal telluride is one or more of manganese telluride, nickel telluride, cadmium telluride or bismuth telluride, and the conductive carbon source is a carbon nanotube. The MnTe-coated CNTs composite material prepared by the invention ...