KR20200024785A - 고체 산화물 연료전지용 스칸디아 안정화 지르코니아 분말 및 그 제조방법, 고체 산화물 연료전지용 스칸디아 안정화 지르코니아 소결체 및 그 제조방법, 그리고 고체 산화물 연료전지 - Google Patents
고체 산화물 연료전지용 스칸디아 안정화 지르코니아 분말 및 그 제조방법, 고체 산화물 연료전지용 스칸디아 안정화 지르코니아 소결체 및 그 제조방법, 그리고 고체 산화물 연료전지 Download PDFInfo
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Abstract
고체 산화물 연료전지용 스칸디아 안정화 지르코니아 분말로서, 일반식 (1) (ZrO2)1-x-a(Sc2O3)x(Al2O3)a로 표시되는 화합물을 함유한다. 식 (1)에서, 0.09≤x≤0.11, 또한 0.002≤a<0.01이다. 결정 구조는 능면체정상이다. 스칸디아 안정화 지르코니아 분말의 소결체의 결정구조가 입방정상이다. 스칸디아 안정화 지르코니아 분말의 소결체의 550℃에서의 입계 저항값이 12Ω·cm 이하이다.
Description
Claims (13)
- 고체 산화물 연료전지용 스칸디아 안정화 지르코니아 분말로서,
하기 일반식 (1)
(ZrO2)1-x-a(Sc2O3)x(Al2O3)a (1)
로 표시되는 화합물을 함유하고,
상기 식 (1)에서, 0.09≤x≤0.11, 또한 0.002≤a<0.01이며,
결정 구조가 능면체정상이고,
상기 스칸디아 안정화 지르코니아 분말의 소결체의 결정구조가 입방정상이며,
상기 스칸디아 안정화 지르코니아 분말의 소결체의 550℃에서의 입계 저항값이 12Ω·cm 이하인, 스칸디아 안정화 지르코니아 분말.
- 제1항에 있어서,
상기 소결체의 500℃에서의 입계 저항값이 60Ω·cm 이하인, 스칸디아 안정화 지르코니아 분말.
- 제1항에 있어서,
상기 소결체의 450℃에서의 입계 저항값이 200Ω·cm 이하인, 스칸디아 안정화 지르코니아 분말.
- 제1항에 있어서,
상기 소결체의 400℃에서의 입계 저항값이 1000Ω·cm 이하인, 스칸디아 안정화 지르코니아 분말.
- 제1항 내지 제4항 중 어느 한 항에 있어서,
상기 소결체는 600℃의 온도 분위기 하에서 1000시간의 열처리를 거쳐도 결정구조가 변화되지 않는, 스칸디아 안정화 지르코니아 분말.
- 고체 산화물 연료전지용 스칸디아 안정화 지르코니아 소결체로서,
하기 일반식 (1)
(ZrO2)1-x-a(Sc2O3)x(Al2O3)a (1)
로 표시되는 화합물을 함유하고,
상기 식 (1)에서, 0.09≤x≤0.11, 또한 0.002≤a<0.01이며,
결정 구조가 입방정상이고,
550℃에서의 입계 저항값이 12Ω·cm 이하인, 스칸디아 안정화 지르코니아 소결체.
- 제6항에 있어서,
500℃에서의 입계 저항값이 60Ω·cm 이하인, 스칸디아 안정화 지르코니아 소결체.
- 제6항에 있어서,
450℃에서의 입계 저항값이 200Ω·cm 이하인, 스칸디아 안정화 지르코니아 소결체.
- 제6항에 있어서,
400℃에서 입계 저항값이 1000Ω·cm 이하인, 스칸디아 안정화 지르코니아 소결체.
- 제6항 내지 제9항 중 어느 한 항에 있어서,
600℃의 온도 분위기 하에서 1000시간의 열처리를 거쳐도 결정구조가 변화되지 않는, 스칸디아 안정화 지르코니아 소결체.
- 제1항 내지 제5항 중 어느 한 항의 스칸디아 안정화 지르코니아 분말의 제조방법으로서,
지르코늄염을 포함하는 원료와 스칸듐염을 포함하는 원료를 혼합한 후에 중화함으로써, 스칸듐-지르코늄 복합 수산화물을 얻는 제 1 공정,
얻어진 상기 수산화물을 소성함으로써 산화물을 얻는 제 2 공정, 및
얻어진 상기 산화물에 알루미나를 첨가하는 제 3 공정을 포함하는, 스칸디아 안정화 지르코니아 분말의 제조방법.
- 제6항 내지 제10항 중 어느 한 항의 스칸디아 안정화 지르코니아 소결체의 제조방법으로서,
지르코늄염을 포함하는 원료와 스칸듐염을 포함하는 원료를 혼합한 후에 중화함으로써, 스칸듐-지르코늄 복합 수산화물을 얻는 제 1 공정,
얻어진 상기 수산화물을 소성함으로써 산화물을 얻는 제 2 공정,
얻어진 산화물에 알루미나를 첨가하는 제 3 공정, 및
상기 제 3 공정에서 얻어진 알루미나가 첨가된 산화물을 소결시키는 제 4 공정을 포함하는, 스칸디아 안정화 지르코니아 소결체의 제조방법.
- 제6항 내지 제10항 중 어느 한 항의 스칸디아 안정화 지르코니아 소결체를 구성요소로서 포함하는, 고체 산화물 연료전지.
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| EP (1) | EP3648214A4 (ko) |
| KR (1) | KR102364408B1 (ko) |
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| KR20230023260A (ko) | 2021-08-10 | 2023-02-17 | 주식회사케이세라셀 | 반응소결법을 이용한 스칸디아 안정화 지르코니아 전해질의 제조방법 |
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| JP7404938B2 (ja) * | 2020-03-06 | 2023-12-26 | 住友電気工業株式会社 | コネクタ付き多心ケーブル |
| CN113371756B (zh) * | 2021-07-13 | 2023-04-25 | 河南工业大学 | 一种La-Sc-ZrO2纳米晶体材料及其制备方法 |
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- 2017-06-30 WO PCT/JP2017/024170 patent/WO2019003422A1/ja not_active Ceased
- 2017-06-30 US US16/625,908 patent/US11462760B2/en active Active
- 2017-06-30 EP EP17915227.7A patent/EP3648214A4/en active Pending
- 2017-06-30 CN CN201780092471.1A patent/CN110856455B/zh active Active
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| JPH06107462A (ja) * | 1992-08-12 | 1994-04-19 | Nippon Telegr & Teleph Corp <Ntt> | 酸素イオン導伝体及び固体燃料電池 |
| 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 |
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| KR20110053991A (ko) * | 2008-08-08 | 2011-05-24 | 가부시끼가이샤 다나까 가가꾸 겡뀨쇼 | 산화니켈-안정화 지르코니아 복합 산화물 및 그의 제조 방법, 이 복합 산화물을 함유하는 고체 산화물형 연료 전지용 연료극 |
| KR20150104745A (ko) * | 2014-03-06 | 2015-09-16 | 다이치 키겐소 카가쿠 코교 컴퍼니 리미티드 | 고체 산화물 연료 전지용 전해질 조성물 및 고체 산화물 연료 전지 |
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| KR20230023260A (ko) | 2021-08-10 | 2023-02-17 | 주식회사케이세라셀 | 반응소결법을 이용한 스칸디아 안정화 지르코니아 전해질의 제조방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3648214A1 (en) | 2020-05-06 |
| US20200153020A1 (en) | 2020-05-14 |
| CN110856455B (zh) | 2023-08-29 |
| KR102364408B1 (ko) | 2022-02-16 |
| CN110856455A (zh) | 2020-02-28 |
| EP3648214A4 (en) | 2021-01-27 |
| WO2019003422A1 (ja) | 2019-01-03 |
| US11462760B2 (en) | 2022-10-04 |
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