▎ 摘　　要

NOVELTY - Preparing lithium-sulfur battery anode composite material having high active substance content comprises (i) dispersing the transition metal source evenly in the base liquid, then adding sulfur source and heating at 50-60 degrees C until the sulfur source dissolves to obtain solution A, where the transition metal source is vanadium source or cobalt source, and the ratio between vanadium or cobalt element in the transition metal source and sulfur element in the sulfur source is 1:5-40, (ii) mixing solution A and liquid B until homogeneous to obtain suspension C, where the liquid B is mixture of three-dimensional graphene and organic solvent, and the concentration of the three-dimensional graphene in the liquid B is 3-5 mg.ml-1, and (iii) reacting suspension C at 120-220 degrees C for 10-20 hours, filtering, washing and drying to obtain lithium-sulfur battery anode composite material solid powder. USE - The lithium-sulfur battery anode composite material is useful for preparing electrode sheet (claimed). ADVANTAGE - The lithium-sulfur battery anode composite material: realizes lithium-sulfur battery with active substance content of up to 90%, and improves the specific energy density of the lithium-sulfur system. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) lithium-sulfur battery anode composite material having high active substance content obtained by above method; and (2) preparing lithium-sulfur battery anode composite material based electrode sheet, comprising mixing lithium-sulfur battery anode composite material with elemental sulfur and then adding carbon nanotube dispersion liquid as conductive additive, then mixing uniformly to obtain slurry, applying the slurry on aluminum foil and drying to obtain electrode sheet, where the ratio between lithium-sulfur battery anode composite material, elemental sulfur and carbon nanotube dispersion liquid is 13-83:15-85:2-5.