▎ 摘　　要

NOVELTY - Preparing lithium iron phosphate having copper/graphene composite layer comprises preparing 200 ml of a mixed aqueous solution containing 0.01 g graphene oxide and 0.08 g copper sulfate, adding 2 g lithium iron phosphate coated powder into the mixed aqueous solution, and stirring at a stirring speed of 180 rotations/minute for 2 minutes, washing the reacted lithium iron phosphate powder with water, suction filtering and vacuum-drying in a vacuum drying oven of -0.08 MPa. USE - The method is useful for preparing lithium iron phosphate having copper/graphene composite layer. ADVANTAGE - The method has high degree of bonding and uniformity than simple mechanical mixing, improved discharge performance rate and cycle stability of lithium iron phosphate rate; and is simple and economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for lithium iron phosphate battery, comprising anode and cathode electrodes, separators and electrolytes, where the anode electrode is composed of N-methylpyrrolidone, a powder of lithium iron phosphate having a copper/graphene composite layer, conductive carbon black and polyvinylidene fluoride.