▎ 摘　　要

NOVELTY - Method for doping graphene in lithium iron phosphate battery anode slurry involves adding graphene, ethanol and surfactant to stirring tank (T1), slowly stirring, infiltrating, obtaining graphene solution, adding conductive agent to the tank (T1), stirring, adding aqueous gum and deionized water to stirring tank (T2), stirring, adding 60-70% lithium iron phosphate powder to tank (T2), stirring, adding remaining lithium iron phosphate powder, stirring, adding material in tank (T1) to the tank (T2), stirring, and adding deionized water to adjust viscosity of the slurry. USE - Method for doping graphene in lithium iron phosphate battery anode slurry (claimed). ADVANTAGE - The method improves dispersion effect of graphene, production efficiency, and capacity and rate of the battery anode. DETAILED DESCRIPTION - Method for doping graphene in lithium iron phosphate battery anode slurry involves adding graphene, ethanol and surfactant to stirring tank (T1), slowly stirring at 3-5 Hz for 15-30 minutes, infiltrating for 6 hours, adding conductive agent to the tank (T1), stirring at 5-8 Hz for 0.2-0.5 hours, adding aqueous gum and deionized water to stirring tank (T2), stirring at 30-35 Hz for 0.3-0.5 hours, adding 60-70% lithium iron phosphate powder to tank (T2), stirring at 3-5 Hz for 0.1-0.2 hour, adding remaining lithium iron phosphate powder, stirring at 5-8 Hz for 1-2 hours, adding material in tank (T1) to the tank (T2), stirring at 5-8 Hz for 1.5-2.5 hours, adding predetermined amount of deionized water to the tank (T2), stirring at 25-35 Hz for 1-2 hours, and adding predetermined amount of deionized water to adjust viscosity of the slurry. The content of graphene, conductive agent, aqueous glue and lithium iron phosphate powder is 0.5-2 wt.%, 1-5 wt.%, 3-5 wt.% and 88-95.5 wt., respectively. The graphene solution comprises 3% or less graphene, 1-4% surfactant and remainder of ethanol.