Solid oxide fuel cell and manufacturing method thereof
Patent 5531019 Issued on July 2, 1996. Estimated Expiration Date: 
April 28, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 28, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSolid oxide fuel cell and method for producing the same Patent #: 5312700 InventorsAssigneeApplicationNo. 430403 filed on 04/28/1995US Classes:29/623.5, Including coating or impregnating29/623.3, Including laminating of indefinite length material156/89.12, Forming electrical article or component thereof156/153, With abrading or grinding of lamina427/115, Fuel cell part429/30, Solid electrolyte429/33, Electrolyte composition chemically specified429/41Having electrolyte matrix or barrier layerExaminersPrimary: Bell, Bruce F.Attorney, Agent or FirmForeign Patent References
International ClassH01M 006/00Foreign Application Priority Data1993-03-10 JPAbstractA solid oxide fuel cell which has a fuel electrode and an air electrode respectively on a first surface and on a second surface of a solid electrolyte. The interface between the solid electrolyte and the fuel electrode, and the interface between the solid electrolyte and the air electrode are roughened. An exemplary way of roughening the interfaces is as follows: a green sheet of solid electrolyte, a green sheet of fuel electrode and a green sheet of air electrode are laminated with the green sheet of electrolyte in the middle; sandpaper is put on each of the green sheet of fuel electrode and the green sheet of air electrode with a plastic film in-between in such a manner that the rough surfaces of the sandpaper face the green sheets of electrode; the laminate of green sheets is press-fixed, whereby the rough surfaces of the sandpaper roughen the interfaces; and the sandpaper and the plastic films are removed. |
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