Fuel cell separator, manufacturing method thereof and fuel cell

Details Fuel cell separator, manufacturing method thereof and fuel cell Fuel cell separator, manufacturing method thereof and fuel cell

2006-05-30

2006-05-30

Dove, Tracy (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

C429S006000, C429S006000, C427S115000

Reexamination Certificate

active

07052794

ABSTRACT:
A separator is provided with a substrate portion having a predetermined concave-convex shape, an underlying coating layer formed on the substrate portion, a first coating layer coating the substrate portion and the underlying coating layer, and a second coating layer formed thereon. The second coating layer, which is formed from carbon materials, is sufficiently electrically conductive and protects the underlying layers. The first coating layer is formed from a low-melting-point metal subjected to a melting process. The melting process is a process of first conducting heating at such a temperature that melts the low-melting-point metal but does not melt the substrate portion and the underlying coating layer and then conducting cooling. Thus, in the first coating layer, the crystal grain size of the metal is increased and thus the grain boundary density is reduced.

REFERENCES:
patent: 5064734 (1991-11-01), Nazmy
patent: 5624769 (1997-04-01), Li et al.
patent: 5631099 (1997-05-01), Hockaday
patent: 5798188 (1998-08-01), Mukohyama et al.
patent: 6090228 (2000-07-01), Hwang et al.
patent: 6280868 (2001-08-01), Badwal et al.
patent: 6291094 (2001-09-01), Yoshimura et al.
patent: 6372376 (2002-04-01), Fronk et al.
patent: 6383678 (2002-05-01), Kaneko et al.
patent: 2 270 860 (2004-08-01), None
patent: 199 46 695 (2000-04-01), None
patent: 100 17 058 (2001-10-01), None
patent: 0 955 686 (1999-11-01), None
patent: (A) 60 115173 (1985-06-01), None
patent: A-07-070764 (1995-03-01), None
patent: 10-055811 (1998-02-01), None
patent: A-10-255823 (1998-09-01), None
patent: 2000-036309 (2000-02-01), None
patent: 2000036309 (2000-02-01), None
patent: 2000100452 (2000-04-01), None
patent: WO00/003446 (2000-01-01), None
B.C. Cullity, Elements of X-Ray Diffraction, 2ndedition, pp. 281-282. 1978 (no month).
Hawley's Condensed Chemical Dictionary, 11thedition, p. 835 1987 (no month).
Copy of Official Action dated Feb. 26, 2003 in copending Application Serial No. 09/802,959.
Patent Abstracts of Japan JP 10 308226 Nov. 17, 1998 Aisin Seiki Co. Ltd.

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