▎ 摘　　要

NOVELTY - Preparation of graphene-based composite cathode material involves uniformly mixing graphite raw material and graphite oxide, obtaining mixed material, adding binder to the mixed material, kneading, obtaining kneaded material, rolling the kneaded material, obtaining sheet material, crushing the sheet material, obtaining powder material, subjecting powder material to pressing process, and subjecting obtained product to graphitizing treatment in protective atmosphere. USE - Preparation of graphene-based composite cathode material used for lithium-ion battery (claimed). ADVANTAGE - The method enables preparation of graphene-based composite cathode material having stable structure, high specific capacity, conductivity and rate performance, and excellent liquid absorption properties and cycle characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for lithium-ion battery.