▎ 摘　　要

NOVELTY - Composite anode material comprises graphite anode material and silicon-carbon material, where the content of the silicon-carbon material is not higher than 10 wt.% of the total composite anode material. The raw material of the silicon carbon material comprises silicon-containing particles, graphene, silicon-containing inorganic adhesives and organic carbon sources. The graphene is 3-5 wt.% of the weight of the silicon alloy powder, the silicon-containing inorganic binder is 1-3 wt.% of the weight of the silicon alloy powder, and the organic carbon source is 2-6 wt.% of the weight of the silicon alloy powder. USE - Composite anode material for power lithium ion battery. ADVANTAGE - The composite anode material has a long service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing composite anode material, which involves: (A) adding solvent to the raw material of silicon-carbon material to prepare a slurry, and then performing heat treatment at 400-750 degrees C after sanding; and (B) uniformly stirring the silicon-carbon material and the graphite negative electrode material.