▎ 摘　　要

NOVELTY - A graphene lithium iron phosphate anode material comprises graphene and lithium ion battery anode material in amount of 0.1-8 %. USE - Graphene lithium iron phosphate anode material for use in lithium-ion batteries. ADVANTAGE - The graphene lithium iron phosphate anode material has excellent performance, better electric conductivity and discharge multiplying power property, and can be prepared in simple and cost-effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing graphene lithium iron phosphate anode material, which involves mixing the lithium source, iron source, phosphorus source and carbon source in ratio of 1: 0.95-1.0:0.95-1.0:0.1-0.5, preparing pure-phase lithium iron phosphate using high temperature solid phase process, adding mixed material into ball mill machine with alcohol or pure water and zirconia ball or agate ball in the ratio of 1:1.8-2:1.2-1.5 for 4-16 hours, drying the obtained mixture at 60-120 degrees C using a furnace to remove alcohol or pure water, cooling the dried mixture and grinding the mixture into powder material, adding the powdered material in a tubular furnace for a vacuum inert gas, allowing the powder material to heat preservation reaction for 2-10 hours at 600-850 degrees C in the furnace, cooling the obtained material at room temperature to obtain carbon coating of lithium iron phosphate material, preprocessing the material by introducing inert gas in a vacuum tubular furnace at 300-700 degrees C, 0.1-20 MPa high pressure for 1-12 and cooling the material at room temperature to obtain graphene lithium iron phosphate anode material.