Corrosion-resistant metallic member, metallic separator for fuel cell comprising the same, and process for production thereof
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United States of America Patent
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Mar 2, 2004
Grant Date -
Apr 10, 2003
app pub date -
Feb 28, 2002
filing date -
Feb 28, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A highly corrosion-resistant material and a corrosion-resistant member which are improved in corrosion resistance, adhesion, contact electrical resistance, electrical conductivity, airtightness, etc. and are suitable for use as, e.g., a metallic separator for polymer electrolyte fuel cells (PEFC); and a process for producing them. A thin noble-metal layer is formed on the desired part of the surface of a metallic base and then subjected to compression working. The coated base may further be subjected to anticorrosive treatment with a liquid phase containing a peroxide or ozone or with an active gas atmosphere.
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