▎ 摘 要
NOVELTY - Graphene-like carbon-coated silicon/carbon/graphene composite material comprises 1-10% graphene-like carbon coating layer, 1-15% silicon, 80-95% carbon, and 0.1-5% graphene. USE - Graphene-like carbon-coated silicon/carbon/graphene composite material. ADVANTAGE - The graphene-like carbon-coated silicon/carbon/graphene composite material can greatly reduce costs and achieve large-scale mass production, can effectively alleviate volume effect of nano-silicon, avoid nano-silicon and electrolyte direct contact of the Si/C composite material, and improves cycle stability of the Si/C composite material, and has good conductivity, high specific capacity, wide raw material sources, and is economical and environmentally friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing graphene-like carbon-coated silicon/carbon/graphene composite material, which involves: (A) mixing nano silicon solution, the phenolic resin solution, the graphene slurry, and the graphite to obtain a mixture; (B) drying the mixture to obtain dried composite material powder; (C) mixing the dried composite material powder, the carbon source and the foaming agent in an inert atmosphere for performing heating treatment to obtain a carbon-coated composite material; and (D) calcining the carbon-coated composite material to obtain the graphene-like carbon-coated silicon/carbon/graphene composite material.