KR100955514B1 - 입방정 이터비아 안정화 지르코니아 및 이를 이용한 고체산화물연료전지 - Google Patents
입방정 이터비아 안정화 지르코니아 및 이를 이용한 고체산화물연료전지 Download PDFInfo
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- KR100955514B1 KR100955514B1 KR1020080083154A KR20080083154A KR100955514B1 KR 100955514 B1 KR100955514 B1 KR 100955514B1 KR 1020080083154 A KR1020080083154 A KR 1020080083154A KR 20080083154 A KR20080083154 A KR 20080083154A KR 100955514 B1 KR100955514 B1 KR 100955514B1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
- H01M8/1246—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides
- H01M8/1253—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides the electrolyte containing zirconium oxide
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
- H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/90—Selection of catalytic material
- H01M4/9016—Oxides, hydroxides or oxygenated metallic salts
- H01M4/9025—Oxides specially used in fuel cell operating at high temperature, e.g. SOFC
- H01M4/9033—Complex oxides, optionally doped, of the type M1MeO3, M1 being an alkaline earth metal or a rare earth, Me being a metal, e.g. perovskites
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M2008/1293—Fuel cells with solid oxide electrolytes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/0071—Oxides
- H01M2300/0074—Ion conductive at high temperature
- H01M2300/0077—Ion conductive at high temperature based on zirconium oxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
Description
Claims (4)
- (Yb2O3)x(Sc2O3)y(ZrO2)1-x-y의 조성식을 갖으며 전체 안정화제(Yb2O3+Sc2O3)의 고용량은 0.07≤x+y≤0.12이고, 주 안정화제인 이터비아(Yb2O3)의 고용량은 스칸디아(Sc2O3)의 고용량 보다 크고(x>y), 스칸디아(Sc2O3)의 고용량은 1몰% 이상∼5몰% 미만(0.01≤y<0.05)으로 이루어진 것을 특징으로 하는 입방정 이터비아 안정화 지르코니아 전해질.
- Ni 금속과 YSZ, ScSZ 및 YbScSZ 전해질 중의 1종을 혼합한 복합소재 연료극과;상기 복합소재 연료극 위에 코팅된 것으로, (Yb2O3)x(Sc2O3)y(ZrO2)1-x-y의 조성식을 갖으며 전체 안정화제(Yb2O3+Sc2O3)의 고용량은 0.07≤x+y≤0.12이고, 주 안정화제인 이터비아(Yb2O3)의 고용량은 스칸디아(Sc2O3)의 고용량은 크고(x>y), 스칸디아(Sc2O3)의 고용량은 1몰% 이상∼5몰% 미만(0.01≤y<0.05)으로 이루어진 입방정 이터비아 안정화 지르코니아 전해질과;상기 전해질 위에 코팅된 것으로, La1-xSrxMnO3 (x=0.1-0.3; LSM), La1-xSrxCo1-yFeyO3 (x=0.3-0.4, y=0.8-0.9; LSCoFe) 또는 La1-xSrxCu1-yFeyO3 (x=0.2-0.3, y=0.8-0.9; LSCuFe) 의 페롭스카이트 구조의 공기극 소재 또는 이러한 공기극 소재에 YSZ, ScSZ 및 YbScSZ 전해질 중의 1종을 혼합한 복합소재 공기극을 포함하여 이루어지는 것을 특징으로 하는 고체산화물연료전지.
- 제 2항에 있어서,상기 공기극과 전해질 사이의 계면 반응을 통한 2차상 생성을 방지하기 위하여 사마륨(Sm) 또는 가돌리움(Gd)이 첨가된 세리아(CeO2)를 공기극과 전해질 사이에 코팅한 것을 특징으로 하는 고체산화물연료전지.
- 제 2항에 있어서,상기 복합소재 연료극이 10-30 마이크론(㎛) 두께인 것을 특징으로 하는 고체산화물연료전지.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101186766B1 (ko) | 2011-05-03 | 2012-09-27 | 주식회사케이세라셀 | 고체산화물연료전지용 이소결성 지르코니아 전해질 |
WO2014178484A1 (ko) * | 2013-05-03 | 2014-11-06 | 한국생산기술 연구원 | 고체산화물 연료전지용 고체전해질의 제조방법 및 단위셀의 제조방법 |
Families Citing this family (1)
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KR101867161B1 (ko) * | 2016-06-28 | 2018-06-14 | 주식회사케이세라셀 | 환원 분위기 안정성을 개선한 고체산화물 연료전지용 스칸디아 안정화 지르코니아 전해질 |
Citations (4)
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JPH05238822A (ja) * | 1992-02-26 | 1993-09-17 | Shinagawa Refract Co Ltd | ジルコニア電解質とその製造方法 |
JPH1097859A (ja) | 1996-09-24 | 1998-04-14 | Mitsubishi Heavy Ind Ltd | 固体電解質型電気化学セルおよびその製造方法 |
JP2000340240A (ja) | 1999-05-31 | 2000-12-08 | Toho Gas Co Ltd | 高イオン導電性固体電解質材料及びそれを用いた固体電解質型燃料電池 |
US6787261B2 (en) | 2000-10-23 | 2004-09-07 | Toho Gas Co., Ltd. | Solid oxide fuel cell |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH05238822A (ja) * | 1992-02-26 | 1993-09-17 | Shinagawa Refract Co Ltd | ジルコニア電解質とその製造方法 |
JPH1097859A (ja) | 1996-09-24 | 1998-04-14 | Mitsubishi Heavy Ind Ltd | 固体電解質型電気化学セルおよびその製造方法 |
JP2000340240A (ja) | 1999-05-31 | 2000-12-08 | Toho Gas Co Ltd | 高イオン導電性固体電解質材料及びそれを用いた固体電解質型燃料電池 |
US6787261B2 (en) | 2000-10-23 | 2004-09-07 | Toho Gas Co., Ltd. | Solid oxide fuel cell |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101186766B1 (ko) | 2011-05-03 | 2012-09-27 | 주식회사케이세라셀 | 고체산화물연료전지용 이소결성 지르코니아 전해질 |
WO2014178484A1 (ko) * | 2013-05-03 | 2014-11-06 | 한국생산기술 연구원 | 고체산화물 연료전지용 고체전해질의 제조방법 및 단위셀의 제조방법 |
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