▎ 摘　　要

NOVELTY - Production of porous metal doped lithium manganese oxide/graphene lithium battery cathode material involves preparing porous lithium manganese oxide precursor (I) by sol-gel method, placing precursor in muffle furnace, and heating to obtain porous lithium manganese oxide, preparing graphene oxide solution, and placing porous lithium manganese oxide in graphene oxide solution, magnetically stirring, ultrasonically dispersion, drying, transferring to tube furnace, and heating. USE - Production of porous metal doped lithium manganese oxide/graphene lithium battery cathode material (claimed). ADVANTAGE - The method enables production of porous metal doped lithium manganese oxide/graphene lithium battery cathode material with excellent crystallinity, uniform particle size, electrochemical stability, discharge capacity, and cycle performance. DETAILED DESCRIPTION - The production method of porous metal-doped lithium manganese oxide/graphene lithium battery cathode material involves preparing porous lithium manganese oxide precursor of formula: (LiM(0.2)Mn(1.8)O(4)) (I) by sol-gel method, placing precursor in muffle furnace, and heating at temperature of 500-700 degrees C and heating rate of 2-5 degrees C/minute for 2-4 hours in an air atmosphere to obtain porous lithium manganese oxide, preparing 0.05-0.1 g/ml graphene oxide solution, and placing porous lithium manganese oxide in graphene oxide solution, magnetically stirring, ultrasonically dispersion, drying, transferring to tube furnace, and heating at temperature of 250-400 degrees C and heating rate of 2-5 degrees C/minute for 2-5 hours in an argon atmosphere. M = doped metal comprising Fe, Co, Ni, Cu or Zn.