▎ 摘　　要

NOVELTY - Preparing lithium iron phosphate cathode material comprises mixing carbon material and iron(III) phosphate, then ball milling to obtain the iron phosphate composite material, dissolving the conductive polymer in water to obtain a conductive solution, adding the iron phosphate composite material into the conductive solution, adding a lithium source at the same time, and mixing to obtain a mixed solution, the electrolytic cell includes a cathode electrolytic cell and an anode electrolytic cell which are connected through a salt bridge, adding mixed solution into the cathode electrolytic cell and electrolyte into the anode electrolytic cell simultaneously, cathode and anode are respectively inserted into the cathode electrolytic cell and anode electrolytic cell, and the cathode and anode are respectively connected to the cathode and the anode of the power supply for electrolysis, reducing mixed solution under the action of electrolysis to obtain final product. USE - The lithium iron phosphate cathode material is useful in lithium-ion battery (claimed). ADVANTAGE - The method: has high efficiency, low energy consumption, safe, environmental friendly and high energy utilization rate, which meets the needs of future energy development; do not protection inert gas.