▎ 摘　　要

NOVELTY - Preparing lithium iron phosphate/graphene oxide composite material comprises (1) adding polyamine oxidized cellulose to the iron source to react to obtain mixture A under acidic conditions, (2) adding phosphorus source in mixture A and stirring to obtain mixture B, (3) mixing mixture B and graphene oxide solution to obtain mixture C, (4) adding lithium source reaction in mixture C, mixing the solid material obtained by reaction with carbon source, and drying, and (5) sintering, crushing, screening, and demagnetizing the dried material to obtain lithium iron phosphate/graphene oxide composite material. USE - The method is useful for preparing lithium iron phosphate/graphene oxide composite material. ADVANTAGE - The method: limits the ratio of lithium and iron elements, and the particle size of lithium source; improves the overall performance of lithium iron phosphate materials in lithium battery applications; and solves the problem of poor comprehensive performance of the lithium iron phosphate material applied to the battery.