▎ 摘　　要

NOVELTY - The preparation of nano-silicon graphene composite lithium battery anode material, involves (1) taking 10-35 pts. wt. elemental silicon, 60-100 pts. wt. graphene sheet, 3-6 pts. wt. conductive polymer, 4-10 pts. wt. conductive carbon black, 5-10 pts. wt. chemical resistant modifier, 4.6-5.8 pts. wt. barium titanate powder, 5-10 pts. wt. nano-aqueous binder and 1-3 pts. wt. elastic silicone-acrylic emulsion, (2) irradiating elemental silicon using laser, (3) adding graphene sheet, conductive polymer, conductive carbon black, chemical resistant modifier, barium titanate powder and elastic silicone-acrylic emulsion for 20 minutes in medium speed mixer, melting, extruding and grinding to obtain mixed powder, (4) uniformly emulsifying mixed powder, transferring to high pressure homogenizer, adding weighed nano-aqueous binder and laser-modified elemental silicon, carrying out homogenization for 30 minutes and drying. USE - Preparation of nano-silicon graphene composite lithium battery anode material. ADVANTAGE - The method enables preparation of nano-silicon graphene composite lithium battery anode material with improved charge and discharge specific capacity of lithium ion, increased toughness and excellent corrosion resistance and conductivity.