▎ 摘 要
NOVELTY - The method involves dispersing graphene in an organic solvent. An ultrasonic treatment is performed at room temperature for 1-4 hour to obtain graphene suspension. A lithium-containing inorganic precursor is added for preparing lithium iron phosphate, forum containing inorganic precursor and phosphorus-containing inorganic precursor in a graphene suspension according to theoretical mass ratio of 1:0.1-5 percent of a lithium iron phosphate to graphene. A lithium iron phosphate/carbon composite material is obtained by graphene. USE - Method for preparing a lithium iron phosphate/carbon composite material that is utilized as an anode active material of a lithium ion battery (claimed). ADVANTAGE - The method improves the electrochemical performance of the battery, charging property and circulation stability. DESCRIPTION OF DRAWING(S) - The drawing shows a photographic representation of a lithium iron phosphate/carbon composite material.