Cathode specific, used for the preparation of an alkali metal chlorate and process for its manufacture

The invention concerns a specific cathode comprising a substrate and an element selected from the group comprising titanium, nickel, tantalum, zirconium, niobium and their alloys, coated with an intermediate mixed oxide layer based on titanium and ruthenium and an outer metal oxide layer comprising titanium, zirconium and ruthenium. The invention also concerns a method for making said cathode and its uses in electrolysis.