▎ 摘　　要

NOVELTY - Composite conductive current collector comprises a carrier layer (1) and a conductive layer (2). The conductive layers are connected to the top surface of the carrier layer. The component material of the carrier layer is a metal material, preferably gold, tungsten, platinum, iron, cobalt, nickel, magnesium, zinc, aluminum, titanium, chromium or copper. The top surface of the carrier layer is a dressing surface (20). The conductive layer includes at least one first conductive block (21) and at least two second conductive blocks (22). The thickness of the second conductivity block is greater than the thickness of one of the first conductivity blocks. The conductive layer comprises a carbon material, preferably graphite, carbon nanotubes, graphene and/or carbon black. USE - Composite conductive current collector for use in an electrode sheet of a lithium ion battery. ADVANTAGE - The composite conductive current collector is good for the battery safety, and does not affect the coating speed of the electrode sheed and ensures the coating productivity. It improves the charging ability of the large current charging capacity of the battery. It avoids the cathode edge lithium evolution, and improves the cycle life of the lithium ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a structural diagram of the composite conductive current collector. Carrier layer (1) Conductive layer (2) Dressing surface (20) First conductive block (21) Second conductive blocks (22)