Compact fuel cell

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Means for joining components together

Reexamination Certificate

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Details

C429S456000, C429S460000, C429S463000, C429S469000, C429S471000, C429S508000

Reexamination Certificate

active

07816055

ABSTRACT:
A novel electrochemical cell which may be a solid oxide fuel cell (SOFC) is disclosed where the cathodes (144, 140) may be exposed to the air and open to the ambient atmosphere without further housing. Current collector (145) extends through a first cathode on one side of a unit and over the unit through the cathode on the other side of the unit and is in electrical contact via lead (146) with housing unit (122and124). Electrical insulator (170) prevents electrical contact between two units. Fuel inlet manifold (134) allows fuel to communicate with internal space (138) between the anodes (154and156). Electrically insulating members (164and166) prevent the current collector from being in electrical contact with the anode.

REFERENCES:
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patent: 5145754 (1992-09-01), Misawa et al.
patent: 5492777 (1996-02-01), Isenberg et al.
patent: 5686197 (1997-11-01), Nishida et al.
patent: 2003/0096147 (2003-05-01), Badding et al.
Souza et al., “Reduced-Temperature Solid Oxide Fuel Cell Based on YSZ Thin-Film Electrolyte,” Journal of the Electrochemical Society, vol. 144 ( No. 3), p. L35-L37, (Mar. 1997).
Visco et al., “Development of Low-Cost Alloy Supported SOFCs,” Eighth International Symposium on Solid Oxide Fuel Cells, Paris, France (Apr. 27, 2003-May 2, 2003).
Yamahara et al., “High-Performance Thin Film SOFCs for Reduced Temperature,” 14th International Conference on Solid State Ionics, Monterey, Calif (Jun. 22, 2003-Jun. 27, 2003) and subsequently published as “Thin Film SOFCs with Cobalt-Infiltrated Cathodes,” Solid State Ionics, vol. 176, p. 275-279, (2005).
Jacobson et al., “Thin-Film Solid Oxide Fuel Cells for Intermediate Temperature (500-800 C) Operation,” Proceedings of the Processing and Characterization of Electrochemical Materials and Devices (The American Ceramic Society), (Apr. 25, 1999-Apr. 28, 1999).

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