▎ 摘　　要

NOVELTY - Anode lithium supplementing agent comprises lithium cuprate, the lithium cuprate is doped with metal elements; and coating layer, which is coated on the surface of the lithium cuprate particles, the coating layer is made of carbon material. USE - The anode lithium supplementing agent is useful for anode sheet used in electrochemical device (all claimed). ADVANTAGE - The anode lithium supplementing agent: is not sensitive to air humidity; can exist stably in air environment; has low production cost and good material stability; and is convenient for practical use in battery production and manufacturing. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: Preparing anode lithium supplementing agent comprising mixing lithium source, copper source and doping metal source evenly, and performing primary sintering to obtain lithium cuprate doped with metal elements; uniformly mixing the lithium cuprate with carbon material, and secondary sintering to coat the carbon material on the surface of the lithium cuprate. Anode sheet. Electrochemical device.