▎ 摘　　要

NOVELTY - The preparation method of graphene coated lithium ion battery material involves oxidizing graphite using oxidizing agent to obtain graphite oxide precursor, placing graphite oxide precursor in a reducing atmosphere, sintering and dispersing to obtain graphene, mixing battery raw material with graphene, grinding, drying and sintering in a protective atmosphere. The battery raw material comprises lithium source, phosphorus source, iron source and titanium source. USE - The method is useful for preparing graphene coated lithium ion battery material (claimed). ADVANTAGE - The method enables economical preparation of graphene coated lithium ion battery material with excellent conductivity and electrochemical performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene coated lithium ion battery material prepared by the method.