▎ 摘　　要

NOVELTY - Lithium-free cathode sheet comprises a current collector, a 3D lithium-philic layer on the surface of the current collector, and a buffer layer on the surface of the 3D lithium-philic layer. The 3D lithium-philic layer is a modified CuO nano-array. The modified CuO nano-arrays comprises CuO nano-arrays. The chelates distributed inside and/or on the surface of the CuO nanoarray, and the organic interface layer adsorbed on the surface of the CuO nanoarray. The buffer layer comprises carbon materials, metals or metal oxides with lithium-loving functions, and binders. USE - The sheet is useful for manufacturing lithium batteries (claimed). ADVANTAGE - The sheet increase the specific surface area of the current collector by constructing a 3D lithium-philic layer structure on the surface of the copper foil, alleviate the volume expansion caused by the lithium deintercalation process, reduces the local current density, and promotes the uniform deposition of lithium. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparing the sheet.