▎ 摘　　要

NOVELTY - A polymer-coated silicon/sulfur-doped graphene anode material comprises 50-80 wt.% silicon material, 10-20 wt.% graphene, and 10-30 wt.% polymer coating layer coated on silicon material. USE - Polymer-coated silicon/sulfur-doped graphene anode material. ADVANTAGE - The polymer-coated silicon/sulfur-doped graphene anode material can be prepared by a simple method in an environmentally-friendly manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the polymer-coated silicon/sulfur-doped graphene anode material, which involves: (S1) preparing silicon/sulfur doped graphene composite material by taking silicon nanoparticles and sulfur-doped graphene, and ball milling; (S2) preparing polymer-coated silicon/sulfur-doped graphene anode material by dispersing the silicon/sulfur doped graphene composite material in deionized water, magnetically stirring for 60 minutes, then adding pyrrole monomer and dopamine monomer, cooling to 5-10 degrees C, adding ferric chloride hexahydrate, and reacting for 8-12 hours; and (S3) precipitating the product obtained in step (S2), washing several times with deionized water, drying, and grinding into powder.