▎ 摘　　要

NOVELTY - The method involves dispersing graphene oxide in water to obtain a first solution. The organic small molecular substance containing at least two substituents on the benzene ring is dispersed in ethanol to obtain a second solution. The first solution and the second solution are mixed, ultrasonically dispersed, the dispersion is heated, and then freeze-dried to obtain functionalized modified graphene oxide. USE - Preparation of functionalized modified graphene oxide used in preparation of graphene composite silicon negative electrode material (all claimed). ADVANTAGE - The functionalized modified graphene oxide has multiple cooperative function of mechanical supporting network and conductive ion transmission network. It replaces macromolecule agglomerant even replacing the action of copper foil current collector, preparing high performance integrated silicon negative electrode. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an application of functionalized modified graphene oxide.