▎ 摘　　要

NOVELTY - The preparation of anode material involves using natural flake graphite, oxidizing graphite, preparing solution (a) by dispersing oxidized graphite in aqueous alcohol mixture to obtain oxide graphene dispersion liquid, preparing solution (b) by dissolving tetravalent tin salt in hydrochloric acid solution, adding surfactant, dissolving potassium ferricyanide in hydrochloric acid solution, adding solution (b) to solution (a) to form mixed solution, adding to solution (c), centrifuging, adding water, drying to obtain tin ferrocyanide/graphene precursor, heating and calcining. USE - Preparation of graphene/iron-tin alloy composite anode material for lithium ion battery (claimed). ADVANTAGE - The method enables the preparation of anode material by simple and easy process in short reaction time. DETAILED DESCRIPTION - The preparation method of graphene/iron-tin alloy composite anode material for lithium ion battery, involves using the natural flake graphite as raw material, oxidizing the graphite by Hummers method, preparing the solution (a) by ultrasonically dispersing the oxidized graphite in aqueous alcohol mixture to obtain oxide graphene dispersion liquid, preparing the solution (b) by dissolving tetravalent tin salt in dilute hydrochloric acid solution, adding certain amount of block copolymer surfactant, dissolving potassium ferricyanide in dilute hydrochloric acid solution, adding solution (b) to solution (a), stirred at room temperature, forming mixed solution, adding the solution (c) to the mixed solution, continuously stirring, adding resulting mixed solution to PTFE-lined reactor, placing the reactor in an oven for carrying out hydrothermal reaction, centrifuging the resulting precipitate, adding deionized water, drying to obtain tin ferrocyanide/graphene (Sn3(Fe(CN)6)4/rGO) precursor, heating the precursor in an inert atmosphere, and calcining.