▎ 摘　　要

NOVELTY - Preparing graphene oxide-sodium iron phosphate composite anode material comprises (i) ultrasonically dispersing graphene oxide in deionized water to obtain graphene oxide dispersion, (ii) adding sodium salt, iron salt, and phosphorus source in graphene oxide dispersion liquid, continuously and magnetically stirring to obtain uniformly mixed solution, (iii) transferring homogeneously mixed solution to polytetrafluoroethylene reactor for hydrothermal reaction, and then using solvent to repeatedly centrifuge and washing product obtained from hydrothermal reaction, and then drying to obtain homogeneously mixed powder, where the uniformly mixed powder includes graphene oxide and sodium ferric phosphate, and (iv) placing uniformly mixed powder in tube furnace for heat treatment to obtain graphene oxide-sodium iron phosphate composite anode material. USE - The method is useful for preparing graphene oxide-sodium iron phosphate composite anode material. ADVANTAGE - The method is simple, economical, and suitable for industrial production. The material has excellent electrochemical performance, rate performance and reversible performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for graphene oxide-sodium iron phosphate composite anode material, prepared by above method, where the graphene oxide-sodium iron phosphate composite anode material includes anode active material and conductive agent, the anode active material is sodium iron phosphate, and the conductive agent is graphene oxide.