▎ 摘　　要

NOVELTY - Preparation of three-dimensional structure of lithium-sulfur battery anode material involves adding graphite oxide into ethylene glycol to form graphene oxide suspension, adding dissolved triphenylphosphine solution into the graphene oxide suspension and freeze-drying to obtain three-dimensional phosphorus-doped graphene, adding phosphorus-doped graphene and Ketjenblack (RTM: highly electroconductive carbon black) to N-methylpyrrolidone to form suspension, adding elemental sulfur into N-methylpyrrolidone to form suspension, and mixing obtained two suspensions and washing and drying. USE - Preparation of three-dimensional structure of anode material used for lithium-sulfur battery. ADVANTAGE - The method provides three-dimensional structure of lithium-sulfur battery anode material in which sulfur adsorption effect exhibited by phosphorus atoms in the phosphorus-doped graphene can effectively reduce the shuttle effect, for improving cycle life of lithium-sulfur battery. DETAILED DESCRIPTION - Preparation of three-dimensional structure of lithium-sulfur battery anode material involves adding graphite oxide into ultrasonically-processed ethylene glycol to form a graphene oxide suspension, dissolving triphenylphosphine in ethylene glycol, adding the resulting solution into the graphene oxide suspension, transferring the suspension to hydrothermal kettle for dissolution heat reaction and washing with ethanol and water after completion of reaction and freeze-drying to obtain three-dimensional phosphorus-doped graphene, adding the phosphorus-doped graphene and Ketjenblack (RTM: highly electroconductive carbon black) to N-methylpyrrolidone and ultrasonically processing to form a suspension, adding elemental sulfur into N-methylpyrrolidone until the elemental sulfur is completely dissolved to form a suspension, uniformly stirring obtained two suspensions, and slowly adding distilled water while stirring, and centrifuging, washing and drying.