▎ 摘　　要

NOVELTY - A graphene lithium battery composite material comprises 40-60 pts. wt. electrode material, 35-45 pts. wt. modified graphene, 28-36 pts. wt. polyvinyl alcohol, 2-6 pts. wt. acrylamide and 70-100 pts. wt. solvent; The modified graphene is modified by double transition metal oxide. USE - As graphene lithium battery composite material. ADVANTAGE - In the graphene lithium battery composite material, the use of polyvinyl alcohol and acrylamide, enables to improve the compatibility and dispersibility of graphene. Further, the introduction of double transition metals through the graphene modified by double transition metal oxides, enables to generate double transition metals. The synergistic effect leads to a change in the electronic structure, which in turn improves the electrochemical performance of graphene, and improves the conductivity and cycle stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of graphene lithium battery composite material, which involves: 1) subjecting modified graphene, polyvinyl alcohol, acrylamide and part of solvent, to ultrasonic dispersion, to obtain mixed solution; 2) ultrasonically mixing the mixed solution with electrode material and the rest solvent, to obtain the precursor; 3) subjecting the precursor to electrostatic spinning and drying.