▎ 摘　　要

NOVELTY - Polymer-based cathode collector comprises a supporting layer (101), where the material of the supporting layer is a conductive polymer, and a protective conductive composite layer (102) is located on the surface of supporting layer. The material of protective conductivity composite layer comprises a protective material and a conductivity material. The bonding force between the protective conductive composite layer and supporting layer. The material particle diameter of the protective material is ≮ that of the material particles of the conductive material. A portion of the protection conductive compound layer close to the support layer is more than the protection material, and the other part of the conductive protective layer away from the support layer is the protective material more than the conductive material. USE - The polymer-based cathode collector is useful for lithium ion battery (claimed). ADVANTAGE - The collector: has strong material strength, strong plasticity, tensile strength and processing performance; improve the specific energy, high conductivity and electrochemical performance of battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a preparation method of polymer-based cathode collector. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the polymer-based cathode collector. 101Supporting layer 102Protective conductive composite layer