KR970077795A - 연료전지 분리판의 가스기밀부 접합내식코팅방법 - Google Patents

연료전지 분리판의 가스기밀부 접합내식코팅방법 Download PDF

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KR970077795A
KR970077795A KR1019960019359A KR19960019359A KR970077795A KR 970077795 A KR970077795 A KR 970077795A KR 1019960019359 A KR1019960019359 A KR 1019960019359A KR 19960019359 A KR19960019359 A KR 19960019359A KR 970077795 A KR970077795 A KR 970077795A
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South Korea
Prior art keywords
nickel
fuel cell
gas
base material
heat treatment
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KR1019960019359A
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KR100394776B1 (ko
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류시역
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이대원
삼성중공업 주식회사
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Priority to KR1019960019359A priority Critical patent/KR100394776B1/ko
Priority to IT97MI001264A priority patent/IT1292033B1/it
Priority to US08/864,745 priority patent/US6090228A/en
Priority to NL1006185A priority patent/NL1006185C2/nl
Priority to JP14421597A priority patent/JP3423574B2/ja
Publication of KR970077795A publication Critical patent/KR970077795A/ko
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Publication of KR100394776B1 publication Critical patent/KR100394776B1/ko
Assigned to 대한민국(산업통상자원부장관) reassignment 대한민국(산업통상자원부장관) 권리의 전부이전등록 Assignors: 한국전력공사
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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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0228—Composites in the form of layered or coated products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/02—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a press ; Diffusion bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/227—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
    • 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
    • H01M2300/0048—Molten electrolytes used at high temperature
    • H01M2300/0051—Carbonates
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

본 발명은 용융탄산염 연료전지의 분리판에 관한 것으로, 특히 모재상에 니켈 전기도금을 행한 후 알루미늄 박막을 접착하여 열처리를 통하여 확산시켜 고내식성을 갖게 한 연료분지 분리판의 가스기밀부 접합내식코팅방법에 관한 것이다.
본 발명은 공정이 간소하여 제작비가 저렴하며, 확산에 의한 코팅이 이루어지므로 내식성 및 모재와의 접합성이 우수한 코팅층을 얻을 수 있다. 게다가, 가압치구와 고온에서 안정된 세라믹분말을 이용하여 연료전지스택의 형태로 한번에 열처리할 수 있기 때문에 동시에 다수의 분리판의 코팅이 가능하다.

Description

연료전지 분리판의 가스기밀부 접합내식코팅방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따른 접합내식코팅방법을 설명하기 위한 설명도, 제2도는 제1도의 Ⅰ부분 확대상세도.

Claims (4)

  1. 가스가 출입하는 매니폴드부와, 전극을 장착하는 전극부 및, 가스가 외부로 유출되지 않토록 외부로부터 밀폐하는 가스기밀부로 이루어진 연료전지 분리판에 있어서, 니켈을 도금한 모재를 생성하는 단계; 니켈도금된 모재의 기밀부위상에 알루미늄박막을 접합하는 단계; 및 수소가스분위기에서 열처리하여 모재와 니켈 및 알루미늄의 접합면에서의 확산에 의해 니켈-알루미늄금속화합물을 형성하는 단계를 포함하는 연료전지 분리판의 가스기밀부 접합내식코팅방법.
  2. 제1항에 있어서, 상기 열처리는 수소가스분위기에서 660℃∼700℃까지 약 1℃/분의 승온속도로 온도를 올린 다음 2시간을 유지하는 1차열처리단계와, 재차 1℃/분의 승온속도로 900℃∼1000℃ 온도를 올린 다음 약 2시간을 유지하는 2차열처리단계로 이루어진 것을 특징으로 하는 연료전지 분리판의 가스기밀부 접합내식코팅방법.
  3. 제1항에 있어서, 상기 니켈도금된 모재는 약 5∼20㎛ 두께의 니켈전기도금이나 니켈-스테인리스 스틸 크래드강판으로 구성됨을 특징으로 하는 연료전지 분리판의 가스기밀부 접합내식코팅방법.
  4. 제1항에 있어서, 상기 열처리중 알루미늄의 반대방향으로의 확산을 막기 위하여 입도가 아주 미세한 세라믹분말을 일정한 두께로 상기 알루미늄박막의 비접합층에 도포하는 것을 특징으로 하는 연료전지 분리판의 가스기밀부 접합내식코팅방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019960019359A 1996-05-31 1996-05-31 연료전지분리판의가스기밀부접내식코팅방법 Expired - Lifetime KR100394776B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1019960019359A KR100394776B1 (ko) 1996-05-31 1996-05-31 연료전지분리판의가스기밀부접내식코팅방법
IT97MI001264A IT1292033B1 (it) 1996-05-31 1997-05-29 Metodo di trattamento anticorrosivo per un separatore di cella a combustibile di carbonato fuso
US08/864,745 US6090228A (en) 1996-05-31 1997-05-29 Anticorrosive treatment method for a separator of molten carbonate fuel cell
NL1006185A NL1006185C2 (nl) 1996-05-31 1997-05-30 Anticorrosie-behandelingswerkwijze voor een separator van een brandstofcel met gesmolten carbonaat.
JP14421597A JP3423574B2 (ja) 1996-05-31 1997-06-02 溶融炭酸塩形燃料電池の分離板の耐食処理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960019359A KR100394776B1 (ko) 1996-05-31 1996-05-31 연료전지분리판의가스기밀부접내식코팅방법

Publications (2)

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KR970077795A true KR970077795A (ko) 1997-12-12
KR100394776B1 KR100394776B1 (ko) 2003-11-17

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100646945B1 (ko) * 2000-09-28 2006-11-17 한국전력공사 가스 크로스 오버 방지가 가능한 용융탄산염 연료전지의전극
KR101229075B1 (ko) 2006-12-20 2013-02-04 한국전력공사 용융탄산염 연료 전지용 스택 및 용융탄산염 연료 전지용분리판의 제조 방법

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63138663A (ja) * 1986-11-29 1988-06-10 Toshiba Corp 耐溶融炭酸塩腐食材料の製造方法
JPH0417267A (ja) * 1990-05-10 1992-01-22 Nisshin Steel Co Ltd 溶融炭酸塩型燃料電池のセパレータ板
JPH0652868A (ja) * 1992-06-19 1994-02-25 Sumitomo Special Metals Co Ltd 溶融炭酸塩型燃料電池用セパレータマスク材及びその製造方法

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