▎ 摘　　要

NOVELTY - Method for preparing lithium ion battery material involves placing ternary alloy in a hydrogen peroxide solution, and adding strong alkali solution to the hydrogen peroxide solution to perform dealloying reaction at a predetermined temperature to obtain a dealloying material. After placing the dealloying material in ethanol and sonicating for a period of time, adding aminopropyltrimethoxysilane, and then sonicating for a period of time to obtain a precursor. Preparing graphene oxide powder into a graphene oxide dispersion, mixing precursor and graphene oxide dispersion to obtain a mixed solution. Adding ammonia to the mixed solution, adding citric acid after stirring the reaction, and continuing to stir at a certain temperature to obtain a material intermediate. Heating the material intermediate to a certain temperature in a predetermined atmosphere, keeping for a certain period of time and lowering to room temperature. Ternary alloy contains metals aluminum, cobalt, and nickel. USE - Method for preparing lithium ion battery material used as a lithium ion battery cathode material. ADVANTAGE - Composite of the oxide and the graphene integrates the advantages of two components and improve the electrochemical performance of a single material. The nano material has high surface activation energy and large specific surface area, and improves the lithium storage capacity when used as a lithium ion battery material. Micron material has high tap density, good stability and easy preparation. The lithium ion battery material obtained is used as a lithium ion battery cathode material, takes the nano-sheet or nano-rod as a basic unit, has high specific surface area and abundant active sites, and improves the diffusion rate of lithium ions, the integral micron-sized dendritic structure prevents the nano sheets from agglomerating, effectively relieve the volume expansion caused by the lithium ions in the de-intercalation process and improves the circulation stability of the material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for lithium-ion battery material has micron-level dendritic material composed of nanosheets as basic units, any one of nano-sheets and graphene sheets with irregular composite materials or nano-particle close-packed materials composed of nanorods as basic units, diameter of the nanosheet is 100 nm, micron branch length is 3-4 mum, nanorod has a diameter of 5 nm and a length of 30 nm and the nanoparticle size is 300 nm.