▎ 摘 要
NOVELTY - The method involves taking the soluble lithium compound, phosphate and ferrous salt to be mixed in the dispersant to obtain the dispersion liquid. The graphene-derived material is mixed to obtain graphene oxide derived material, and ultrasonic dispersion to obtain the dispersion liquid. The dispersion liquids are stirred uniformly by drying, spraying and calcining to obtain the graphene doped lithium iron phosphate anode material. USE - Method for preparing graphene doped lithium iron phosphate anode material. ADVANTAGE - The circulation performance of the lithium ion secondary battery can be improved. The tap density can be improved. The internal resistance of the material can be reduced, and hence the service life of the lithium iron phosphate anode material can be extended. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating the process for preparing graphene doped lithium iron phosphate anode material. (Drawing includes non-English language text)