▎ 摘　　要

NOVELTY - Modified current collector (10) comprises a substrate (101) and a conductive layer (102) applied on one side or both sides of the substrate, where the conductive layer comprises a conductive material, and a metal compound (I). USE - The modified current collector is useful in a cathode of a secondary battery (claimed), where the secondary battery is a lithium-ion battery, a lead-acid battery, or a polymer battery. ADVANTAGE - The conductive layer of the modified current collector can act as a physical barrier between the substrate and the alkaline cathode active material in the electrode layer. This prevents the corrosion of the substrate without compromising the conductivity within the cathode. The metal compound in the conductive layers of the current collector compensates for metal ion loss and reduces the irreversible capacity loss in initial battery charging. It reduces the interfacial resistance between the electrode layers and the collector itself, which improves the output performance of the cathodes. When a water-based cathode slurry is applied on the conductor layer, there is a risk that the conductor layers would revert to a fluid by dissolving into the cathodic slurry. This could lead to delamination of the conductor layer. The collector exhibits exceptional electrochemical performance. DETAILED DESCRIPTION - Modified current collector (10) comprises a substrate (101) and a conductive layer (102) applied on one side or both sides of the substrate, where the conductive layer comprises a conductive material, and a metal compound of formula ((A)+a(B)(a)-) (I). (A) =(Li) or (Na) ; a=1-10; and (B) a) =inorganic or organic anion. An INDEPENDENT CLAIM is also included for cathode, comprising the modified current collector and an electrode layer (20), where the electrode layer is located on the surface of the conductive layer, and the electrode layer comprises a cathode active material and a binding agent. DESCRIPTION OF DRAWING(S) - The figure shows the simplified views of the modified current collector within a cathode. 10Modified current collector 20Electrode layer 101Substrate 102Conductive layer