Coating processes – Electrical product produced – Fuel cell part
Reexamination Certificate
2006-10-10
2006-10-10
Bell, Bruce F. (Department: 1746)
Coating processes
Electrical product produced
Fuel cell part
C427S126200, C427S126300, C427S126600, C427S372200, C427S376200, C427S376300, C427S376600, C427S404000, C427S419200, C501S108000, C501S123000, C501S126000, C501S152000, C029S623500
Reexamination Certificate
active
07118777
ABSTRACT:
Low-cost, mechanically strong, highly electronically conductive porous substrates and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures provide solid state electrochemical device substrates of novel composition and techniques for forming thin electrode/membrane/electrolyte coatings on the novel or more conventional substrates. In particular, in one aspect the invention provides techniques for co-firing of device substrate (often an electrode) with an electrolyte or membrane layer to form densified electrolyte/membrane films 5 to 20 microns thick. In another aspect, densified electrolyte/membrane films 5 to 20 microns thick may be formed on a pre-sintered substrate by a constrained sintering process. In some cases, the substrate may be a porous metal, alloy, or non-nickel cermet incorporating one or more of the transition metals Cr, Fe and Cu, or alloys thereof.
REFERENCES:
patent: 3773549 (1973-11-01), Elbert et al.
patent: 5240480 (1993-08-01), Thorogood et al.
patent: 5306411 (1994-04-01), Mazanec et al.
patent: 5328779 (1994-07-01), Tannenberger et al.
patent: 5366770 (1994-11-01), Wang
patent: 5480739 (1996-01-01), Kawasaki et al.
patent: 5589285 (1996-12-01), Cable et al.
patent: 5633081 (1997-05-01), Clough et al.
patent: 5670270 (1997-09-01), Wallin
patent: 5932368 (1999-08-01), Batawi et al.
patent: 5938822 (1999-08-01), Chen et al.
patent: 5993986 (1999-11-01), Wallin et al.
patent: 6358567 (2002-03-01), Pham et al.
patent: 6368383 (2002-04-01), Virkar et al.
patent: 6589680 (2003-07-01), Gorte et al.
patent: 6605316 (2003-08-01), Visco et al.
patent: 6767662 (2004-07-01), Jacobson et al.
patent: 2001/0012576 (2001-08-01), Christiansen
patent: 2002/0048699 (2002-04-01), Steele et al.
patent: 1 383 343 (1974-02-01), None
patent: WO 97 00734 (1997-01-01), None
Seabaugh, et al., Low-Cost Fabrication Processes for Solid Oxide Fuel Cells, NexTech exhibited at the Fuel Cells 2000 Conference in Portland Oct. 30, 2000-Nov. 2, 2000, NexTech Materials, Ltd.
Fujii, K., et al., “Manufacturing and Charaterization of Metallic System Support Tube for Solid Oxide Fuel Cells”, Bullentin of the Electrotechnical Laboratory, vol. 62, No. 1-2, 1998, pp. 1319, no month available.
Momma, et al., “High Potential Performance of Tubular Type SOFC Using Metallic System Components”, Electrotechnical Laboratory, Electrochemical Proceedings vol. 97-40, Jun. 1997, pp. 310-321.
Okuo, et al., “Development of Metallic Substrate Tubular SOFC”, Electrotechnical Laboratory, Oct. 1994, pp. 908-919.
Okua, T., et al., “Improvement in Power Stability and Durability Demonstration on New Tubular Type SOFC Using Metallic System Component”, vol. 60, No. 5, 1996 pp. 1-9, no month available.
Schiller, G., et al., “Development of Metallic Substrate Supported Thin-Film SOFC by Applying Plasma Spray Techniques”, Electrochemical Society Proceedings vol. 99-19, Oct. 1999, pp. 892-903.
Schiller, G., et al., “Development of Plasma Sprayed Components for a New SOFC Designs”, Electrochemical Proceedings vol. 97-40, Oct. 1999, pp. 634-645.
Schiller, G. et al., “Development of SOFC Components by Vacuum Plasma Spraying”, 1998, pp. 515-518, no month available.
Takenoiri, et al., “Development of Metallic Substrate Supported Planar SOFC at Fuji Electric”, Fuel Cell Seminar Abstracts, Nov. 1998, pp. 84-87.
Unal, et al., “Microstructures of Y2O3-Stabilized ZrO2Electron Beam-Physical Vapor Deposition Coatings on Ni-Base Superalloys”, Department of Materials Science and Engineering, vol. 984-92, 1994, pp. 984-992, no month available.
Wallin, et al., “Cofired Solid Oxide Fuel Cells for Operation at 800° C.”, 1997,Abstract.
Yao, et al, “Improved preparation procedure and properties for a multiplayer piezoelectric thick-film actuator”, Sensors and Actuators A 71, Received Dec. 9, 1997; received in revised form Apr. 27, 1998; accepted May 1, 1998, pp. 139-143.
“Mfg. Oxygen Sensor—Involves Applying Catalyst Metal Salt Soln. To Sintered Electrolyte, Reducing, Firing, Again Applying Metal Salt Soln. And Firing”, Matsushita Elec Ind Co Ltd [MATU], 1979JP-0078760 (Jun. 21, 1979), (abstract), pp. 1-2.
U.S. Office Action mailed Nov. 30, 2004, from U.S. Appl. No. 10/273,812.
U.S. Office Action mailed Mar. 21, 2005, from U.S. Appl. No. 10/273,812.
U.S. Office Action mailed May 9, 2002, from U.S. Appl. No. 09/626,629.
DeJonghe Lutgard C.
Jacobson Craig P.
Visco Steven J.
Bell Bruce F.
Beyer Weaver & Thomas LLP.
The Regents of the University of California
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