▎ 摘　　要

NOVELTY - The method involves weighing certain amount of silicon-oxide powder, putting the silicon-oxide powder into a tubular furnace, and heating silicon-oxide powder to 1000 degrees C for a period of time to carry out the disproportionation reaction under vacuum conditions. The micron level copper powder is ultrasonicated for period of time using acetone solution, and after drying, the micron level copper powder is mixed with the silicon-oxide powder. The mixture is placed in a high energy ball mill for grinding. The ground precursor material is taken out, and poured into a crucible, and then crucible is placed in a tubular furnace, and temperature is raised under the argon atmosphere. An argon gas valve is closed, when the temperature reaches 1050 degrees C. The mixed gas of hydrogen and methane is filled according to proportion in a quartz tube and kept for certain period of time, then temperature control system is closed and sample is naturally cooled to room temperature to obtain the final product. USE - Method for preparing graphene-modified lithium ion battery cathode material. ADVANTAGE - The graphene and the copper particles in the prepared material contains good electrical conductivity and good reversible cycle performance, and the conductivity of the two materials is improved by the addition of the two materials, the other electrochemical properties of the material is improved greatly. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical diagram showing the charge and discharge capacity-voltage. (Drawing includes non-English language text)