▎ 摘　　要

NOVELTY - Preparing graphene/silicon/carbon composite cathode material involves putting the material after mixing the materials and a precursor of the negative electrode material. The material comprises a solution of graphene oxide, a dispersion of nano-silica powder, and a solution of a polymer. The precursor of the negative electrode material includes a core and a core coated in the core. The outer casing is a polymer, the inner core is a graphene oxide sheet to which nano silicon powder is attached. USE - Method for preparing graphene/silicon/carbon composite cathode material. ADVANTAGE - The method enables to prepare graphene/silicon/carbon composite cathode material with excellent cycle performance.