▎ 摘　　要

NOVELTY - A vanadium oxide-based negative electrode material comprises vacancy (Vo) vanadium oxide, and a burnt carbon material formed on the oxygen deficient vanadium oxide. USE - Vanadium oxide-based negative electrode material used in zinc-secondary battery (claimed). ADVANTAGE - The vanadium oxide-based negative electrode material has improved charge diffusion ability, improved electrical conductivity, high specific capacity, high-rate performance, high cycle stability and improved energy storage performance, improves the engineering potential of the application of zinc-ion storage mechanisms in next-generation energy storage devices, improves electrical conductivity and charge diffusion ability due to oxygen deficiency of vanadium oxide nanoparticles, and increases the electrochemical reaction area, thereby improving energy storage performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: manufacture of vanadium oxide-based negative electrode material, which involves preparing a nanofiber template by electrospinning a polymer solution in which a polymer is dissolved in a solvent, preparing a nanofiber template covered with a carbon material by immersing the nanofiber template in a sol solution in which a vanadium oxide precursor, a polymer, and a carbon material are dispersed in a solvent, and drying and heat-treating the carbon material-covered nanofiber template; and zinc-secondary battery, which comprises the vanadium oxide-based negative electrode material, a positive electrodes for zinc-ion batteries, a separator interposed between the vanadium oxide-based negative electrode material and the zinc-ion battery positive electrode, and electrolytes.