▎ 摘　　要

NOVELTY - Preparation of cryogenic lithium iron phosphate composite material comprises mixing 90-95 wt.% lithium iron phosphate, 0.5-1 wt.% graphene, 1-4 wt.% carbon nanotubes and 1-5 wt.% conductive carbon black, heating to 600-750 degrees C, and incubating under nitrogen atmosphere for 4-8 hours. USE - Method for preparation of cryogenic lithium iron phosphate composite material (claimed). ADVANTAGE - The method is safe, and improves cycle life of lithium ion battery.