KR940022938A - 전기화학전지의 전극상에 상호접속부를 소결하는 방법 - Google Patents

전기화학전지의 전극상에 상호접속부를 소결하는 방법 Download PDF

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KR940022938A
KR940022938A KR1019940005065A KR19940005065A KR940022938A KR 940022938 A KR940022938 A KR 940022938A KR 1019940005065 A KR1019940005065 A KR 1019940005065A KR 19940005065 A KR19940005065 A KR 19940005065A KR 940022938 A KR940022938 A KR 940022938A
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죤 루카 로스웰
젠-후 쿠오 루이스
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루이스 에이.드폴
웨스팅하우스 일렉트릭 코오포레이숀
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    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
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    • H—ELECTRICITY
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Abstract

본 발명의 전극구조체(10)는, 전극(16)의 일부위에 도핑된 LaCrO3입자의 기저층을 가한 다음, 그 입자를 CaO+Al2O3, SrO+Al2O3, 또는 BaO+Al2O3와 같은 상부층 조성물로 피복하고, 그 다음 상기 조성물이 용융되어 도핑된 다공성 LaCrO3기저층내의 모든 개방공극을 채워서 상호접속부를 형성할 수 있을 정도의 시간동안 상기 조성물을 가열하고, 그 후 상기 전극의 나머지 부분에 고체산화물 전해질(18)을 가한 다음, 그 전해질(18)을 서어멧 외부전극(20)으로 덮음에 의해서 제조된다.

Description

전기화학전지의 전극상에 상호접속부를 소결하는 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 자기지지형 공기 전극층상에 배치된 본 발명의 소결 및 도핑된 LaCrO3상호 접속층의 개략적인 단면도로서, 이 공기 전극층은 전기화학전지의 다른 요소들을 지지하고 있음, 제2도는 본 발명의 방법에 포함되는 단계를 나타내는 도면.

Claims (9)

  1. 전극 구조체상에 조밀한 고온의 전기전도성 상호접속부를 용착하는 방법에 있어서, (a)도핑된 LaCrO3입자의 얇은 다공성 기저층과 유기성 중합체 결합재를 전극구조체의 제1표면중 일부에 가하는 단계와; (b) 상기 기저층을 CaO+Al2O3, SrO+Al2O3, BaO+Al2O3, CaO+TiO2, BaO+TiO2로 구성된 군으로부터 선택된 상부층 조성물 및 그들의 혼합물로 피복하는 단계와; (c) 상기 기저층과 상부층을, 상기 상부층 조성물이 용융되어 도핑된 LaCr03의 다공성 기저층내의 모든 개방공극을 채울 수 있을 정도의 시간 및 온도로 가열하는 단계를 포함하는 것을 특징으로 하는 방법.
  2. 제1항에 있어서, 상기 LaCrO3는 Ca,Ba,Sr,Co 및 Mg중 적어도 하나로 도핑되는 것을 특징으로 하는 방법.
  3. 제1항에 있어서, 상기 전극은 Ca 또는 Sr로 도핑된 LaMnO3를 포함하는 축방향으로 길다란 자기지지형 관상 구조체이고, (a)단계후 결합재를 제거하고 도핑된 LaCr03입자층을 제공할 수 있도록 상기 입자와 결합제가 가열되며, 남은 입자는 추가로 가열되어 상기 전극구조체상에 확고히 부착되게 되는 것을 특징으로 하는 방법.
  4. 제1항에 있어서, 상기 LaCrO3는 Sr 및 Co로 도핑되며, (b)단계후 LaCrO3와 상부층 조성물은 상기 입자를 상기 전극구조체에 대해 소결한 다음 상기 상부측 조성물을 용융시킬 만큼 추가로 가열되는 것을 특징으로 하는 방법.
  5. 제1항에 있어서, 상기 상부층 조성물은 (CaO)12·(Al2O3)7및 Sr3Al2O6로 구성된 군으로부터 선택되고, 상기 상부층은 유기성 슬러리 또는 테이프로서 가해지고 상기 도핑된 LaCrO3입자는 유기성 슬러리 또는 테이프로서 가해지는 것을 특징으로 하는 방법.
  6. 제1항에 있어서, 상기 전극구조체의 나머지 부분에는 고체산화물 전해질을 가하고, 그 후 상기 전해질의 서어멧제 외부 전극으로 대부분 피복하여, 전기화학 전지가 형성되도록 한 것을 특징으로 하는 방법.
  7. 제6항에 있어서, 상기 복수개의 전기화학 전지가 형성되도록 한 것을 특징으로 하는 방법.
  8. 선택된 부분에 도핑된 LaCrO3의 소결된 층을 가지며, 상기 층은 도핑된 LaCrO3와 CaO+Al2O3, SrO+Al2O3, BaO+Al2O3, CaO+TiO2, BaO+TiO2로 구성된 군으로 부터 선택된 조성물 및 그들의 혼합물의 고용체이며, 전극의 나머지 부분은 고체산화물 전해질로 피복되고, 상기 전해질은 서어멧 외부 전극으로 거의 피복되는 것을 특징으로 하는 자기지지형 통기성 전기전도성 전극.
  9. 제8항에 있어서, 상기 LaCrO3는 Ca,Ba,Sr,Co 및 Mg중 적어도 하나로 도핑되고, 상기 전극은 Ca 또는 Sr로 도핑된 LaMnO3를 포함하는 축방향으로 길다란 자기지지형 튜브이며, 상기 고용체내의 조성물은 (CaO)12·(Al2O3)7및 Sr3Al2O6로 구성된 군으로부터 선택되는 것을 특징으로 하는 전극.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940005065A 1993-03-16 1994-03-15 전극 구조체상에 조밀한 고온의 전기 전도성 상호접속부를 부착하는 방법 및 자기지지형 통기성 전기전도성 전극 KR100281493B1 (ko)

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US032,347 1993-03-16
US08/032,347 US5277995A (en) 1993-03-16 1993-03-16 Electrode and method of interconnection sintering on an electrode of an electrochemical cell

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US6695940B2 (en) * 2001-04-05 2004-02-24 Alan D. Devoe Laminate thin-wall ceramic tubes, including with integral stress wrappings, thickened ends and/or internal baffles, particularly for solid oxide fuel cells
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EP0617475A1 (en) 1994-09-28
KR100281493B1 (ko) 2001-03-02
US5277995A (en) 1994-01-11
CA2119110A1 (en) 1994-09-17
JPH06302332A (ja) 1994-10-28
DE69403257T2 (de) 1997-12-11
EP0617475B1 (en) 1997-05-21

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