▎ 摘　　要

NOVELTY - Hollow graphene fiber complex electrode material comprises growing electrochemically active materials on the surface of hollow graphene fibers. USE - Used as hollow graphene fiber complex electrode material. ADVANTAGE - The method; is simple, economical, and convenient for commercial application. The electrode material has strong interfacial effect, excellent conductivity, rapid redox reaction, mass transfer kinetics, and excellent charging storage capacity, rate capacity and cycle stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the hollow graphene fiber complex electrode material, comprising (i) using the graphene oxide dispersion as the spinning solution for wet spinning, stirring and dissolving the transition metal salt in the solvent to obtain solution A, stirring and dissolving the hexamethylenetetramine in a solvent to obtain solution B, mixing the two solutions A and B together, and vigorously stirring to obtain a mixed solution containing transition metal salt as a coagulation bath for wet spinning, and (ii) using wet spinning and hydrothermal process to synthesize hollow graphene fiber complex electrode material from the spinning solution and coagulation bath.