▎ 摘　　要

NOVELTY - Green organic ligand-based copper (Cu)-metal organic framework (MOF)/graphene oxide (GO) complex is prepared by dispersing conductive phase material in water, adding transition metal salt, dissolving to obtain solution A, dissolving green organic ligand in water to obtain solution B, mixing solution A and solution B, conducting hydrothermal reaction for 5-30 hours at 60-200 degrees C, and obtaining solid i.e. Cu-MOF/GO complex, where the conductive phase material is graphene oxide, the transition metal salt is copper nitrate (Cu(NO3)2) or its hydrate, and the green organic ligand is citric acid or its hydrate. USE - The green organic ligand-based Cu-MOF/GO complex is used as cathode material of lithium ion battery (claimed). ADVANTAGE - The Cu-MOF/GO complex uses the green organic ligand, which greatly reduces the cost and reduces environmental pollution. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for green organic ligand-based Cu-MOF/GO complex.