▎ 摘　　要

NOVELTY - Battery cathode sheet comprises a cathode current collector, a first active material layer located on the cathode current collector, and a second active material layer located on the first active material layer. The first active material layer includes a first active material, a first conductive agent, and a first binder. The second active material layer includes a second active material, a second conductive agent, and a second binder. The ability of the first active material to store lithium ion is greater than that of the second active material for storing lithium ion. The ability of the second active substance to deinke lithium ions is greater than the ability of the first active substance to deinke lithium ions. USE - Battery negative pole piece used in a lithium ion battery (claimed). ADVANTAGE - The battery with the battery cathode sheet can quickly de-embed lithium ion, obviously reduce the risk of surface lithium precipitation and improve the power and safety of the battery in a large current charging and discharging process. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for following: (1) a method for preparing the cathode sheet of the battery, which involves making the first active material, the first conductive agent, and the first binder into a first cathode slurry;putting the first cathode slurry on one surface of the cathode current collector, and then dry it to form the first active material layer;making the second active material, the second conductive agent, and the second binder into a second cathode slurry and putting the second cathode slurry on one surface of the first active material layer, and then dry it to form the second active material layer to form the battery cathode sheet; and (2) a lithium ion battery, which comprises the battery cathode sheet.