High performance cathodes for solid oxide fuel cells
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-004/00
H01M-008/10
출원번호
US-0832625
(2001-04-10)
발명자
/ 주소
Doshi, Rajiv
Guan, Jie
Minh, Nguyen
Montgomery, Kurtis
Ong, Estela
Lear, Gregory
출원인 / 주소
Hybrid Power Generation Systems, LLC
대리인 / 주소
Sutherland Ashill & Brennan LLP
인용정보
피인용 횟수 :
29인용 특허 :
25
초록▼
The present invention relates to a multi-layered and multifunctional cathode in solid oxide fuel cells having high conductivity, high catalytic activity, minimized coefficient of thermal expansion (CTE) mismatch, excellent compatibility to other portions of the fuel cell, and reduced temperature ope
The present invention relates to a multi-layered and multifunctional cathode in solid oxide fuel cells having high conductivity, high catalytic activity, minimized coefficient of thermal expansion (CTE) mismatch, excellent compatibility to other portions of the fuel cell, and reduced temperature operation. The cathode comprises a conductive layer, a catalyst layer and a graded composition layer. The conductive layer has a first density, the catalyst layer has a second density that is less than the first density, and the graded composition layer is characterized by a graded electronic conductivity and a graded ionic conductivity.
대표청구항▼
The present invention relates to a multi-layered and multifunctional cathode in solid oxide fuel cells having high conductivity, high catalytic activity, minimized coefficient of thermal expansion (CTE) mismatch, excellent compatibility to other portions of the fuel cell, and reduced temperature ope
The present invention relates to a multi-layered and multifunctional cathode in solid oxide fuel cells having high conductivity, high catalytic activity, minimized coefficient of thermal expansion (CTE) mismatch, excellent compatibility to other portions of the fuel cell, and reduced temperature operation. The cathode comprises a conductive layer, a catalyst layer and a graded composition layer. The conductive layer has a first density, the catalyst layer has a second density that is less than the first density, and the graded composition layer is characterized by a graded electronic conductivity and a graded ionic conductivity. electrodes, wherein the device comprises the amine compound described in claim 1 in a hole transporting area. 8. An amine compound represented by the following general formula (I): where Ar1,Ar2,Ar3and Ar4each represents a substituted or unsubstituted aryl group having 5 to 30 nuclear atoms; at least one of Ar1,Ar2,Ar3and Ar4represents a substituted m-terphenyl group; Ar5and Ar6each represents a substituted or unsubstituted arylene group having 5 to 30 nuclear atoms; X represents O, S, an alkylene group having 1 to 6 carbon atoms, an arylene group having 5 to 30 nuclear atoms or a diphenylmethylene group; p and q each represents an integer of 0 to 3; r represents a number of 0 or 1; p+q>1; and the m-terphenyl group is substituted with an alkyl group having 1 to 6 carbon atoms, a styryl group having 8 to 30 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryloxyl group having 5 to 18 carbon atoms, a nitro group, a cyano group, an ester group having 1 to 6 carbon atoms, or a halogen atom. 9. An organic electroluminescence device comprising at least an organic light emitting layer disposed between a pair of electrodes, wherein the device comprises the amine compound described in claim 8. 10. An organic electroluminescence device comprising at least an organic light emitting layer disposed between a pair of electrodes, wherein the device comprises the amine compound described in claim 8 in a hole transporting area. 11. An amine compound represented by the following general formula (I): where Ar1,Ar2,Ar3and Ar4each represents a substituted or unsubstituted aryl group having 5 to 30 nuclear atoms; at least one of Ar1,Ar2,Ar3and Ar4represents an unsubstituted m-terphenyl group; Ar5and Ar6each represents a substituted or unsubstituted arylene group having 5 to 30 nuclear atoms; X represents O, S, an alkylene group having 1 to 6 carbon atoms, an arylene group having 5 to 30 nuclear atoms or a diphenylmethylene group; p and q each represents an integer of 0 to 3; r represents a number of 0 or 1; and p+q>1. 12. An organic electroluminescence device comprising at least an organic light emitting layer disposed between a pair of electrodes, wherein the device comprises the amine compound described in claim 11. 13. An organic electroluminescence device comprising at least an organic light emitting layer disposed between a pair of electrodes, wherein the device comprises the amine compound described in claim 11 in a hole transporting area.
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이 특허에 인용된 특허 (25)
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