A Nickel‐Based Composite Electroplated Cathode for the Membrane‐Type Chlor‐Alkali Cell

The cathode overvoltage is the largest factor of the terminal voltage of the membrane‐type chlor‐alkali cell. A nickel‐based composite was electroplated on Type 304 stainless steel cathode substrate. The cathode showed preferably low hydrogen overvoltage and resistance to both solution impurities and short‐circuiting. The cathode has been successfully employed in the commercial cell since 1984.