▎ 摘　　要

NOVELTY - An anode comprises anode material, current collector (201), and graphene-based material (204) which covers anode material. USE - Anode used in sodium-ion batteries. ADVANTAGE - The anode has superior rate capability and long-term stable cyclability. The copper disulfide/nitrogen-doped graphene composite electrode has improved performance electrochemically in cyclability, efficiency, and high capacity. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the close structure of the copper disulfide/nitrogen-doped graphene composite electrode. Current collector (201) Graphene-based material (204A-204F) Electrolyte (206) Coating (300) Solid electrolyte interphase (SEI)