▎ 摘　　要

NOVELTY - Lithium iron phosphate composite positive electrode material comprises positive electrode material, nano-lithium iron phosphate particles and nitrogen-rich graphene. The positive electrode material is nano-lithium iron phosphate particles coated with nitrogen-rich carbon on the surface and uniformly grows in a network structure of the three-dimensional nitrogen-rich graphene. USE - Lithium iron phosphate composite positive electrode material. ADVANTAGE - The electrode material has multi-level conductive network structure, high specific capacity of battery, high specific power of capacitor, excellent cycle and rate performance and is conducive for rapid transmission of electrons and diffusion of electrolyte.