KR100904203B1 - 연료 전지용 전극-전해질 복합체 분말의 제조 방법 - Google Patents
연료 전지용 전극-전해질 복합체 분말의 제조 방법 Download PDFInfo
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- KR100904203B1 KR100904203B1 KR1020070067286A KR20070067286A KR100904203B1 KR 100904203 B1 KR100904203 B1 KR 100904203B1 KR 1020070067286 A KR1020070067286 A KR 1020070067286A KR 20070067286 A KR20070067286 A KR 20070067286A KR 100904203 B1 KR100904203 B1 KR 100904203B1
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- electrode
- electrolyte
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- composite powder
- fuel cell
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- C01G45/1221—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof
- C01G45/125—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO3)n-, e.g. CaMnO3
- C01G45/1264—Manganates or manganites with trivalent manganese, tetravalent manganese or mixtures thereof of the type (MnO3)n-, e.g. CaMnO3 containing rare earths, e.g. (La1-xCax)MnO3 or LaMnO3
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Abstract
Description
| 의도된 조성 | 복합체 분말의 조성 | |||
| La | 0.665 | 50.0 vol.% | 0.67 | 50.5 vol.% |
| Sr | 0.285 | 0.28 | ||
| Mn | 1 | 1 | ||
| Y | 0.16 | 50.0 vol.% | 0.16 | 49.5 vol.% |
| Zr | 0.84 | 0.84 | ||
| YSZ 크기 2.0:0.02 ㎛ | 부피 수축 (%) | 무게 손실 (%) | 소결성 (sinterability) | 개기공도 (open porosity)(%) | 소결 밀도 (sintered density)(%) |
| 75:25 | 51.50 | 4.47 | 77.42 | 10.09 | 87.93 |
| 50:50 | 52.93 | 4.84 | 80.58 | 8.00 | 89.36 |
| 25:75 | 54.85 | 4.80 | 86.04 | 3.88 | 92.44 |
Claims (31)
- 연료 전지의 전극 또는 기능성 층에 사용되는 전극 물질의 출발 물질이 용해된 전극 용액을 제조하는 공정과;상기 전극 용액에, 아미노산을 첨가하고 상기 전극 용액에 용해되지 않는 전해질 분말을 균일하게 분산시켜 전극-전해질 용액을 제조하는 공정과;상기 전극-전해질 용액을 자발 연소시켜 전극-전해질 복합체 분말을 얻는 공정을 포함하며,상기 전극 용액의 용매는 질산을 함유하고, 상기 전극 물질의 출발 물질은 대기중에 안정하고 질산에 용해 가능한 산화물, 탄화물 및 금속 물질 중 적어도 하나이거나, 혹은 이 산화물, 탄화물 및 금속 물질 중 적어도 하나에 추가적으로 물에 잘 녹는 금속염이 첨가된 물질인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 삭제
- 제1항에 있어서, 상기 출발 물질은 MnO2를 포함하고, 상기 용매는 과산화수소를 함유하는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항에 있어서, 상기 아미노산은 글리신인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제4항에 있어서, 상기 질산에서 파생된 질산 이온과 상기 글리신의 몰 비는 1:0.5∼1:4이고, 상기 출발 물질의 양이온과 상기 글리신의 몰 비는 1:0.1∼1:1.1이며, 상기 전극 용액의 pH는 1∼5인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항에 있어서, 상기 전극-전해질 용액은 상기 전해질 분말의 무게 대비 0.1∼3 wt%의 고분자 분산제를 함유하는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항에 있어서, 상기 전해질 분말은 상기 전극-전해질 복합체 분말 대비 10∼80 vol%로 첨가하는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항에 있어서, 상기 전해질 분말은 동종 또는 이종 분말인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항 또는 제8항에 있어서, 상기 전해질 분말은 크기가 동일하거나, 혹은 다른 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항에 있어서, 상기 전해질 분말은 이온 전도성 산화물이거나, 혹은 전자 전도성과 이온 전도성을 동시에 가지는 혼합 전도성 산화물인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항에 있어서, 상기 전해질 분말은 (Sc, Y)-doped 지르코니아, (Gd, Sm, Y, La)-doped 세리아, BaCeO3, SrCeO3, BaZrO3, LaBaGaO4 및 Ba3Ca1-xNb2-xO9(0≤x≤0.05)로 이루어진 군에서 선택된 적어도 어느 하나인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항에 있어서, 상기 전극-전해질 용액을 200∼300 ℃의 온도로 가열하여 자발 연소시키는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제1항에 있어서, 상기 전극-전해질 복합체 분말을 최대 1000 ℃에서 하소하는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 삭제
- 삭제
- 삭제
- 제1항에 있어서, 상기 전해질 분말 주위에 입자 형상의 상기 전극 물질이 균일하게 분포된 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 삭제
- 제17항에 있어서, 상기 전해질 분말은 서로 떨어져 균일하게 분산되어 있고, 상기 전극 물질이 개개의 전해질 분말을 둘러싸고 있는 구조를 갖는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제17항에 있어서, 상기 전해질 분말은 부분적으로 응집된 그룹별로 균일하게 분산되어 있고, 상기 전극 물질이 응집된 전해질 분말 그룹을 부분적 또는 전체적으로 둘러싸고 있는 구조를 갖는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제17항에 있어서, 상기 전해질 분말은 체인 형상으로 연결되어 있고, 상기 전극 물질이 체인 형상으로 연결된 전해질 분말을 부분적 또는 전체적으로 둘러싸고 있는 구조를 갖는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 삭제
- 제17항에 있어서, 상기 전해질 분말 주위에 균일하게 분포되며, 상기 전해질 분말보다 작은 크기를 갖는 동종 또는 이종의 전해질 분말을 더 포함하는 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 삭제
- 제17항에 있어서, 상기 전해질 분말과 상기 전극 물질의 크기 비는 1:0.01∼1:100인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 전해질 물질의 출발 물질이 용해된 전해질 용액을 제조하는 공정과;상기 전해질 용액에, 아미노산을 첨가하고 상기 전해질 용액에 용해되지 않는 전극 분말을 균일하게 분산시켜 전극-전해질 용액을 제조하는 공정과;상기 전극-전해질 용액을 자발 연소시켜 전극-전해질 복합체 분말을 얻는 공정을 포함하며,상기 전해질 용액의 용매는 질산을 함유하고, 상기 전해질 물질의 출발 물질은 대기중에 안정하고 질산에 용해 가능한 산화물, 탄화물 및 금속 물질 중 적어도 하나이거나, 혹은 이 산화물, 탄화물 및 금속 물질 중 적어도 하나에 추가적으로 물에 잘 녹는 금속염이 첨가된 물질인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 삭제
- 제26항에 있어서, 상기 아미노산은 글리신이며,상기 질산에서 파생된 질산 이온과 상기 글리신의 몰 비는 1:0.5∼1:4이고, 상기 전극 분말의 양이온과 상기 글리신의 몰 비는 1:0.1∼1:1.1이며, 상기 전해질 용액의 pH는 4∼6인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제26항에 있어서, 상기 전해질 물질은 (Sc, Y)-doped 지르코니아, (Gd, Sm, Y, La)-doped 세리아, 이온 전도성 또는 혼합 전도성을 갖는 페롭스카이트계 산화물 또는 변형된 페롭스카이트계 산화물, BaCeO3, SrCeO3, BaZrO3, LaBaGaO4 및 Ba3Ca1-xNb2-xO9(0≤x≤0.05)로 이루어진 군에서 선택된 어느 하나인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제26항에 있어서, 상기 전극 분말은 연료 전지의 공기극에 사용되는 분말로서 산소 환원 촉매성을 가지며 이온 전도성 및 전자 전도성을 동시에 갖는 혼합 전도성 산화물이거나, 혹은상기 전극 분말은 연료 전지의 연료극에 사용되는 분말로서 연료 가스 촉매성을 가지며 전자 전도성을 갖는 금속 또는 산화물인 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
- 제26항에 있어서, 상기 전극 분말을 코어로 하고 그 주위에 입자 형상의 상기 전해질 물질이 균일하게 분포된 것을 특징으로 하는 연료 전지용 전극-전해질 복합체 분말의 제조 방법.
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| JP2008173093A JP5306726B2 (ja) | 2007-07-04 | 2008-07-02 | 燃料電池用電極−電解質複合体粉末及びその調製方法 |
| EP08159614A EP2012381B1 (en) | 2007-07-04 | 2008-07-03 | Electrode-Electrolyte Composite Particles for a Fuel Cell and Method for the Preparation thereof |
| US12/167,318 US8647771B2 (en) | 2007-07-04 | 2008-07-03 | Electrode-electrolyte composite powders for a fuel cell and method for the preparation thereof |
| AT08159614T ATE532225T1 (de) | 2007-07-04 | 2008-07-03 | Elektrodenelektrolyt-verbundstoffpartikel für eine brennstoffzelle und herstellungsverfahren dafür |
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| US10686203B2 (en) | 2016-12-14 | 2020-06-16 | Seoul National University R&Db Foundation | Peptide-inorganic material composite film and manufacturing method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| ATE532225T1 (de) | 2011-11-15 |
| JP5306726B2 (ja) | 2013-10-02 |
| US8647771B2 (en) | 2014-02-11 |
| EP2012381B1 (en) | 2011-11-02 |
| KR20090002895A (ko) | 2009-01-09 |
| JP2009016350A (ja) | 2009-01-22 |
| EP2012381A1 (en) | 2009-01-07 |
| US20090011307A1 (en) | 2009-01-08 |
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