▎ 摘　　要

NOVELTY - The method involves mixing a lithium source compound, a vanadium source compound and a phosphorus source compound according to a stoichiometric ratio of lithium, vanadium and phosphorus to obtain a mixture. Graphene oxide and organic precursor are added to the mixture. The mixture is uniformly mixed. A powder material is obtained by drying the mixture by using a dryer and put into a tubular furnace. Obtained precursor powder is naturally cooled for 10 to 100 min. Lithium ion battery acid is obtained. The obtained acid is heated at 500 to 1000 degrees centigrade. USE - Method for preparing a lithium vanadium phosphate/graphene composite material of a lithium ion battery positive electrode. ADVANTAGE - The method enables effectively controlling the graphene content, carbon content and grain diameter of the lithium vanadium phosphate/graphene composite material, and improving stability and conductive performance of the lithium vanadium phosphate/graphene composite material. DETAILED DESCRIPTION - The lithium source compound is lithium oxalate, lithium carbonate, lithium chloride, lithium nitrate, lithium hydroxide, lithium acetate or lithium sulfate. The vanadium source compound is silver metavanadate, sodium metavanadate, vanadic oxide, vanadium oxide, ammonium metavanadate, primary vanadate or acetyl acetone vanadyl. The phosphorus source compound is ammonium phosphate, phosphoric acid, diammonium phosphate or hydrogen ammonium phosphate. DESCRIPTION OF DRAWING(S) - The drawing shows a graph illustrating a lithium vanadium phosphate/graphene composite material preparing method. '(Drawing includes non-English language text)'