Substrate treatment
AssigneeIneos Chlor Limited
InventorsDavid R. Hodgson, Emma Farndon
Life of this patent
Estimating the term…
Abstract
Metal plates to be used in electrochemical cells, e.g. fuel cells, are treated by subjecting a surface or surfaces thereof to an electrical current in the presence of an acidic electrolyte, the alloy being stainless steel or one containing in excess of 14% by weight nickel, e.g. in excess of 15% by weight nickel.
Claims40
A method of manufacturing an electrochemical cell assembly in which at least one component which is exposed to the chemical environment during operation of the cell comprises a metal alloy, said method comprising treating a surface of the alloy, prior to incorporation in the assembly, with an electrical current while contacted by an electrolyte, the alloy being a stainless steel or an alloy containing nickel in excess of that present in 316L stainless steel and incorporating the treated component in the cell assembly.
A method of manufacturing an electrochemical cell assembly in which at least one component which is exposed to the chemical environment during operation of the cell comprises a metal alloy, said method comprising treating a surface of the alloy, prior to incorporation in the assembly, with an electrical current while contacted by an electrolyte, the alloy being a corrosion resistant alloy containing nickel and chromium, and incorporating the treated component in the cell assembly.
Dependencies are inferred from the claim text.