▎ 摘　　要

NOVELTY - Modified lithium iron phosphate material comprises lithium iron phosphate is co-modified by doping and coating, and the doping element comprising at least one of titanium, aluminum, lanthanum or cerium, and the coating material includes at least one of graphene, glucose or polyvinyl alcohol and a fast ion conductor. USE - Modified lithium iron phosphate material. ADVANTAGE - The modified lithium iron phosphate material which improves conductivity of the material, especially conductive low temperature state so as to improves low temperature performance of the material, is capable of ultra-to ensure higher discharge capacity at low temperature at -40-20 degrees C. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a lithium ion battery, which comprises positive electrode, a negative electrode, an electrolyte and a separator, and a positive electrode comprising modified lithium iron phosphate material as a positive electrode active material; and (2) a power battery pack for new energy vehicle or industrial power system, which comprises lithium ion battery.