▎ 摘　　要

NOVELTY - Lithium iron phosphate anode sizing agent comprises 95-97wt.% of active material lithium iron phosphate, 0.5-2wt.% of conductive agent, and 1-3wt.% of binder polyvinylidene difluoride. The conductive agent is a mixture of carbon nanotubes and graphene in a weight ratio of (4-7):(3-6). USE - Lithium iron phosphate anode sizing agent. ADVANTAGE - The lithium iron phosphate anode sizing agent has short making time and high active material content. A high compacted density of the anode sheet is prepared by the anode slurry. The lithium ion battery has excellent energy density and resistance performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing lithium iron phosphate anode sizing agent, which involves: (A) mixing the active material lithium iron phosphate, the conductive agent and the binder polyvinylidene difluoride;\ (B) adding the organic solvent and then adding lithium iron phosphate, carbon nanotube, graphene and polyvinylidene difluoride into the mixing tank; (C) setting the dispersing speed to 5-35 revolutions per minute and then at the dispersion speed of 100-600 revolutions per minute; (D) carrying out the dry mixing for 20-50 minutes; (E) adding the organic solvent N-methyl-2-pyrrolidone at a revolution rate of 15-50 revolutions per minute and a dispersion speed of 500-1000 revolutions per minute; and (F) repeating and then vacuumizing the reverse de-foaming at vacuum degree of -0.08megaPascals -0.1megaPascals, at 5-20 revolutions per minute and stirring 5-30 minutes.