▎ 摘　　要

NOVELTY - Preparing lithium-sulfur battery positive electrode material involves fully dissolving cobalt nitrate hexahydrate/nickel/iron/copper and zinc nitrate hexahydrate in a solvent, stirring and ultrasonically dispersing, then adding graphene oxide solution, and further ultrasonically stirring to obtain solution A and dissolving 2-methylimidazole in the solvent to obtain solution B. The solution A is added to solution B, slowly stirred at 25℃ for 18 hours to obtain a mixed solution, centrifugally washed, and dried to obtain a graphene oxide/zeolite imidazole framework composite material precursor. The precursor is calcined in a nitrogen atmosphere for 2 hours at 900℃, and the heating rate is 5℃ per minute to obtain three-dimensional porous carbon material supporting bimetallic sites. The three-dimensional porous carbon material is mixed with sulfur, ball milled, and then performed a vacuum melting diffusion reaction to obtain product. USE - Method for preparing lithium-sulfur battery positive electrode material. ADVANTAGE - The method improves the cycle stability and multiplying power performance of the battery.