▎ 摘　　要

NOVELTY - Method for preparing a sheet-layered ferric oxide (Fe3O4) anode material, involves weighing iron trichloride hexahydrate and anhydrous sodium acetate and add them to ethylene glycol, and magnetically dissolve them to dissolve them, easure graphene oxide and dissolve it in ethylene glycol. After dissolution is completed, the three are mixed and stirred, where mass percentages of components in total mass of graphene oxide, ferric chloride hexahydrate and anhydrous sodium acetate are 1-10%, 20%-45%, 55-80%. The mixed solution is added to the high-pressure reaction kettle for reaction the temperature of the reaction kettle is 140-180 degrees C, and the reaction is performed for 8-24 hours. After the reaction is completed, separate, wash, and dry to obtain a sheet-like iron composite, and then subject it to high temperature treatment. The heat treatment temperature is 450-650 degrees C, the reaction time is 2-6 hours, and the reaction atmosphere is argon to obtain sheet-like layered Fe3O4 nanocomposite. USE - Method for preparing sheet-like layered ferric oxide nanocomposite material is used for preparing a lithium ion battery anode material (claimed). ADVANTAGE - The graphene oxide-oriented lamellar structure design improves the utilization rate of active materials, shortens the lithium ion diffusion path, effectively alleviates volume expansion, and the introduction of graphene oxide, it improves the electrical conductivity of the material, guarantees excellent cycle performance and rate performance, and enables the composite material to achieve longer cycle stability. It is a lithium ion battery anode material with simple process, safety, environmental protection and large-scale production potential.