METHOD FOR MANUFACTURING METALLIC SEPARATOR MATERIAL FOR FUEL CELL, AND METALLIC SEPARATOR MATERIAL FOR FUEL CELL

PROBLEM TO BE SOLVED: To provide a method for manufacturing a metallic separator material for a fuel cell allowing high corrosion resistance to be achieved even if the thickness of an Au coating layer on the surface of a stainless steel sheet is small.SOLUTION: In the method for manufacturing a meta...

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Bibliographic Details
Main Authors KUSAKA KEITA, KODAMA ATSUSHI, FUTO MASAYOSHI, HISADA TATEO
Format Patent
LanguageEnglish
Published 30.08.2012
Subjects
APPARATUS THEREFOR
BASIC ELECTRIC ELEMENTS
CHEMISTRY
ELECTRICITY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:PROBLEM TO BE SOLVED: To provide a method for manufacturing a metallic separator material for a fuel cell allowing high corrosion resistance to be achieved even if the thickness of an Au coating layer on the surface of a stainless steel sheet is small.SOLUTION: In the method for manufacturing a metallic separator material for a fuel cell, an Au coating layer having a thickness of 20 nm or smaller is formed on the surface of a substrate 2 made of an austenitic stainless steel sheet, with an Au plating bath having a pH of 1.0 or lower. Electroplating is applied while ultrasonic vibration is applied to the substrate and/or the Au plating bath.
Bibliography:Application Number: JP20110026026