Stromkollektorbekleidung von Lithiumsekundärbatterien

摘要

An electrochemical cell electrode, comprising a metallic current collector with a conductive mineral binder coating for protection against passivating film formation, is new. An electrochemical power cell has an electrolyte separator between two electrodes, one or each of which comprises a metalli current collector covered with a compatible protective conductive coating which comprises a mineral binder optionally containing dispersed electronic conduction additive for ensuring electron exchange between the electrode and the collector and which is in tight contact with the collector to protect the metallic surface against passivating film formation. Independent claims are also included for the following: (i) application of a current protective coating on the metallic collector of an electrode by applying an aqueous solution o dispersion of a mineral binder optionally containing a dispersed electronic conduction additive and then drying; and (ii) an electrode as described above.