▎ 摘 要
NOVELTY - Preparing lithium-sulfur battery anode material comprises (1) dropwise adding graphene on the natural fiber, and calcining at 600-1000 degrees C for 8-12 hours to obtain composite carbon fiber-1; (2) mixing the composite carbon fiber-1 with alkaline substance in solution, heating the system to 600-750 degrees C for 30-90 minutes under inert gas atmosphere to obtain composite carbon fiber-2; (3) stirring the composite carbon fiber-2, sulfur source and dispersant in acidic solution for 12-48 hours, and filtering; and (4) soaking the filter product in organic solvent. USE - The lithium-sulfur battery anode material is useful for lithium battery (claimed). ADVANTAGE - The lithium-sulfur battery anode material: has large specific surface area and high porosity; reduces loss of active substance, and improves the cycle performance of electrode. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) lithium-sulfur battery anode material prepared by above mentioned method; (2) lithium-sulfur battery anode comprises anode active material, conductive agent, and adhesive, the active material is lithium-sulfur battery anode material mentioned above; and (3) lithium battery comprises anode, spacing mold, electrolyte and cathode, where anode is anode material of lithium battery mentioned above.