▎ 摘　　要

NOVELTY - Lithium-rich current collector, comprises an aluminum-containing or copper-containing current collector bottom layer, a lithium-rich layer on at least one surface of the current collector bottom layer, and an active layer on the surface of the lithium-rich layer. USE - Used as lithium-rich current collector. ADVANTAGE - The cured lithium-rich layer can absorb the electrolyte produced by the secondary battery, and then coating the active layer on the lithium-rich layer. The formed lithium-rich current collector is used as an electrode in a secondary battery with a stable structure. When the battery is formed, it can effectively improve the transmission of lithium ions and the progress of the electrode reaction, thus greatly improving the first effect and cycle performance of the battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: method for preparing a lithium-rich current collector, comprising: (a) adding lithium-rich materials, conductive materials and coating additives into a solvent in batches to disperse evenly to obtain a lithium-rich slurry; (b) choosing the bottom layer of the current collector, applying the lithium-rich carbon-coated slurry on one surface of the current collector and solidifying to form a lithium-rich layer; (c) adding the active material to the solvent in batches and dispersing evenly to obtain an active slurry; (d) coating the active slurry on the surface of the lithium-rich layer and solidifying to form an active layer to obtain a lithium-rich current collector; and battery, comprising the lithium-rich current collector. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of lithium-rich current collector. 1Current collector bottom layer 2Lithium-rich layer 3Active layer