Corrosion resistant metal composite for electrochemical devices and methods of producing the same
US7972449B2 · kind B2 · utility
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3References
2Claims
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Key dates
| Filing date | Jan 3, 2008 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Feb 3, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A metal composite for use in electrochemical devices is disclosed. The metal composite comprises a stainless steel interior component and a deposited nitrided metal exterior layer, wherein the nitrided exterior layer has lower electric contact resistance and greater corrosion resistance than the stainless steel interior component. A bipolar plate made of such metal composite and methods of producing the metal composite and bipolar plate are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.