Stainless steel separator for low-temperature fuel cell
US7070877B2 · kind B2 · utility
2Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Apr 2, 2003 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jan 31, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12993
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A stainless steel separator, which is good of corrosion-resistance and low of contact-resistance, is proposed for a fuel cell. Its surface faced to a fuel electrode is pickled, which the other surface faced to an oxidizing electrode is roughened by electrolytic etching or the like. The roughening treatment may be performed before or after pickling and passivation. The roughened surface of the stainless steel separator without pickling or passivation may be faced to the oxidizing electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.