MANUFACTURING METHOD FOR ELECTROCHEMICAL BATTERY ASSEMBLY

PROBLEM TO BE SOLVED: To provide a treating method improving the corrosion resistance of a metallic plate constituting component of an electrochemical battery assembly, a fuel cell stack for example. SOLUTION: In the manufacturing method for the electrochemical battery assembly, at least one constit...

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Bibliographische Detailangaben
Hauptverfasser:	HODGSON DAVID R, FARNDON EMMA
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a treating method improving the corrosion resistance of a metallic plate constituting component of an electrochemical battery assembly, a fuel cell stack for example. SOLUTION: In the manufacturing method for the electrochemical battery assembly, at least one constituting component exposed to a chemical environment during the operation of the battery contains a metal alloy, and the manufacturing method is that the surface of the alloy is treated by passing current while it is brought into contact with an electrolyte before it is assembled in the assembly, the alloy contains the amount of nickel exceeding the nickel content in 316L stainless steel, and the treated constituting component is assembled in the battery assembly. COPYRIGHT: (C)2004,JPO