▎ 摘　　要

NOVELTY - High-capacity, high-rate lithium ion battery negative electrode comprises at least a graphene sheet combined with a graphene oxide suspension and a cobalt oxide nanowire precursor suspension and a three-dimensional interaction of the cobalt oxide nanowires. USE - High-capacity, high-rate lithium ion battery negative electrode. ADVANTAGE - The high-capacity, high-rate lithium ion battery negative electrode not only has a higher specific capacity than the battery prepared by the current commercial carbon negative electrode material, but the volume specific capacity and volume energy density are also much higher than that of the carbon negative electrode material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing high-capacity, high-rate lithium ion battery negative electrode, which involves: (A) adding graphene sheet and cobalt oxide nano-wire three-dimensional support porous network structurecomposite material, conductive agent and adhesive according to mass ratio of (7-10): 1: 1 to the solvent to mix uniformly; (B) coating on the current collector foam nickel or copper foil; and (C) drying to obtain the lithium ion battery cathode material.