▎ 摘　　要

NOVELTY - A lithium iron phosphate composite material comprises lithium iron phosphate and noncontinuously covering graphene surface. The grain diameter of material is 35 nm and tap density of 1.01-1.05 g/cm3. USE - Lithium iron phosphate composite material. ADVANTAGE - The material has simple preparation method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the lithium iron phosphate composite material, which comprises providing lithium iron phosphate or lithium iron phosphate precursor, raising temperature at 5-30 degrees C/minute to 500-800 degrees C, sintering for 10-24 hours for first time, and cooling to room temperature; sintering at 2-20 degrees C/minute for second time, introducing organic substance containing oxygen and water vapor, and cooling to room temperature to obtain lithium iron phosphate composite material.