▎ 摘　　要

NOVELTY - Preparing aqueous zinc-ion battery composite anode material comprise (1) adding lithium hydroxide monohydrate aqueous solution to vanadium oxide aqueous solution, maintaining the temperature at 85-95°C, adding hydrazine sulfate to the solution to obtain a reaction solution, stirring the reaction solution for 5-10 minutes, adding ultrapure water to dilute, adding potassium permanganate to the reaction solution, continuously heating for 1-2 hours, filtering and allowing to stand the filtrate for 10-14 hours, separating out black columnar crystals from the filtrate were washed with water and air-drying to obtain H6Mn3V19O46(H2O)12.30H2O, and (2) mixing H6Mn3V19O46(H2O)12.30H2O with graphene in a certain proportion and then calcining at high temperature to obtain vanadium trioxide/manganese dioxide-graphene composite anode material. USE - The method is useful for preparing aqueous zinc-ion battery composite anode material, ADVANTAGE - The method is simple, and has mild reaction conditions, low cost, and low equipment requirements. The obtained composite anode material has high capacity and good stability, and exhibits excellent electrochemical performance when applied to the anode of the aqueous zinc ion battery.