▎ 摘　　要

NOVELTY - Lithium iron phosphate/graphene composite lithium battery anode material has porous where anode material is core-shell structure which is made of lithium iron phosphate where shell structure material is graphene, formed with hole structure. The aperture of pore structure is 5-100 nm, specific surface area of anode material is 30-300 square meter/g. USE - Lithium iron phosphate/graphene composite lithium battery anode material. ADVANTAGE - The lithium iron phosphate/graphene composite lithium battery anode material increases electrical conductivity, and improves rate performance and quick charging and discharging capacity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing lithium battery anode lithium iron phosphate/graphene composite material, which involves: (A) adding de-ionized water and lithium salt, phosphate, cane sugar with stirring to obtain first mixture; (B) mixing de-ionized water with graphene to prepare graphene dispersion liquid, then slowly adding first mixture into graphene dispersion liquid with stirring to obtain second mixture; (C) dispersing second mixture under condition of ultrasonic dispersing for 1-2 hours, spray drying to obtain lithium iron phosphate/graphene precursor; (D) introducing lithium iron phosphate/graphene precursor in inert gas in heating speed of 1-10 degrees C/minutes, heating to 600-800 degrees C and keeping temperature for 6-12 hours; and (E) cooling to room temperature to obtain porous structure of lithium battery anode lithium iron phosphate/graphene composite material.