▎ 摘　　要

NOVELTY - A lithium iron phosphate/carbon composite cathode material for a secondary lithium ion battery is manufactured by (a) preparing a mixture solution which includes lithium source, iron source, phosphate source, and carbon precursor combination in a liquid medium; (b) subjecting the mixture solution to a spray drying treatment to obtain a particulate powdery material; and (c) sintering the particulate powdery material at an elevated temperature of 600-800 degrees C, where the carbon precursor combination includes a porous graphene oxide-based additive and first carbon precursor, which is different from porous graphene oxide-based additive. USE - Manufacture of lithium iron phosphate/carbon composite cathode material for a secondary lithium ion battery. ADVANTAGE - The lithium iron phosphate/carbon composite cathode material has superior electronic conductivity and retain much more electrolyte to markedly enhance a lithium ion diffusion coefficient.