Porous lanthanum manganite sintered bodies and solid oxide fuel cells
October 12, 2013. 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 ReferencesAir electrode material for high temperature electrochemical cells Oxygen electrode with layer comprising electrode and electrolyte materials Process for producing a high density ceramic of perovskite Oxide modified air electrode surface for high temperature electrochemical cells Thin tubular self-supporting electrode for solid oxide electrolyte electrochemical cells Solid electrolyte fuel cell and method for manufacture of same Air electrode and solid electrolyte fuel cell having the same Method of making an air electrode material having controlled sinterability Patent #: 5342704 InventorsAssigneeApplicationNo. 133873 filed on 10/12/1993US Classes:429/44, Having an inorganic matrix, substrate or support252/182.1, HAVING UTILITY AS A REACTIVE MATERIAL IN AN ELECTROCHEMICAL CELL; E.G., BATTERY, ETC.423/263, RARE EARTH COMPOUND (AT. NO. 21, 39, OR 57-71)423/594.16, Alkaline earth metal containing (Mg, Ca, Sr, or Ba)423/594.2, And alkali metal or alkaline earth metal containing423/599, Manganese (e.g., manganate, etc.)429/30, Solid electrolyte429/33, Electrolyte composition chemically specified429/40, Catalytic electrode structure or composition501/108, Magnesium compound containing501/123, Alkaline earth metal compound containing501/126Trivalent metal compound (e.g., iron oxide, chromium oxide, trivalent rare earth oxide, etc.) containingExaminersPrimary: Langel, Wayne A.Attorney, Agent or FirmForeign Patent References
International ClassesC04B 035/02H01M 004/88 H01M 004/90 Foreign Application Priority Data1992-10-14 JPAbstractA porous sintered body composed mainly of lanthanum manganite in which a part of lanthanum atoms at A-sites of the lanthanum manganite are substituted by atoms of a metal selected from the group consisting of alkaline earth metals and rare earth metals. The dimensional shrinkage amount of the porous sintered body in heat cycling between room temperature and 1,000° C. is not more than 0.01% per one heat cycle.Other References
Field of SearchMagnesium compound containingAlkaline earth metal compound containing Trivalent metal compound (e.g., iron oxide, chromium oxide, trivalent rare earth oxide, etc.) containing Manganese (e.g., manganate, etc.) Solid electrolyte Electrolyte composition chemically specified Catalytic electrode structure or composition Having an inorganic matrix, substrate or support HAVING UTILITY AS A REACTIVE MATERIAL IN AN ELECTROCHEMICAL CELL; E.G., BATTERY, ETC. |
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