▎ 摘　　要

NOVELTY - Method for preparing vanadium sulfide/reduced graphene oxide composite material, involves (i) dispersing graphene oxide in deionized water to form a graphene oxide solution, where the concentration of the graphene oxide aqueous solution is 0.5-5 mol/ml, (ii) dissolving vanadium source and sulfur source according to molar ratio of vanadium source and sulfur source of (0.6-1.2):(0.6-1.5) in the graphene oxide solution, and stirring to form a uniform premixed solution, (iii) dripping aqueous ammonia to the pre-mixed solution formed in step (ii) under stirring until the pH of the solution is 9 to obtain a mixed solution, (iv) reacting the mixed solution formed in step (iii) at 140-200 degrees C for 24-48 hours, and (v) cooling to room temperature, washing the product and freeze-drying to obtain the vanadium sulfide/reduced graphene oxide composite material. USE - The method is used for preparing vanadium sulfide/reduced graphene oxide composite material in anode material of aqueous zinc ion battery (claimed). ADVANTAGE - The vanadium sulfide/reduced graphene oxide composite material improves capacity, rate performance and cycle stability of the aqueous zinc ion battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a vanadium sulfide/reduced graphene oxide composite material prepared by the above method comprising vanadium sulfide particles and reduced graphene oxide, where the vanadium sulfide particles are spherical with a particle size of 200-300 nm, reduced graphene oxide has a three-dimensional network structure, and the vanadium sulfide particles are uniformly attached to the three-dimensional network structure formed by reduced graphene oxide; and (2) the use of the use of the vanadium sulfide/reduced graphene oxide composite material in anode material of an aqueous zinc ion battery.