KR100792869B1 - 연료전지용 분리판 - Google Patents
연료전지용 분리판 Download PDFInfo
- Publication number
- KR100792869B1 KR100792869B1 KR1020060126269A KR20060126269A KR100792869B1 KR 100792869 B1 KR100792869 B1 KR 100792869B1 KR 1020060126269 A KR1020060126269 A KR 1020060126269A KR 20060126269 A KR20060126269 A KR 20060126269A KR 100792869 B1 KR100792869 B1 KR 100792869B1
- Authority
- KR
- South Korea
- Prior art keywords
- fuel cell
- hydrogen
- flow path
- diffusion layer
- cooling water
- Prior art date
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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
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
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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
- H01M8/023—Porous and characterised by the material
- H01M8/0241—Composites
- H01M8/0245—Composites in the form of layered or coated products
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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
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
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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
- H01M4/8605—Porous electrodes
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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
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
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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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
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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
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims (7)
- 분리판(10) 사이에 막전극접합체(11) 및 기체확산층(12)이 장착된 단위전지가 반복적층되는 연료전지용 스택에 있어서,두장의 평판을 하나로 접착하여 이루어지고, 상기 평판의 양면에 반응기체들이 지나갈 수 있도록 형성된 가스(수소,산소)유로와, 상기 평판의 중간에 열을 제거하기 위해 형성된 냉각수유로와, 상기 가스유로 및 냉각수유로에 수소, 산소 및 냉각수를 공급하기 위해 유로양단부에 형성된 매니폴드(15a,15b,15c)를 포함하여 구성되되, 상기 수소, 산소유로 및 냉각수 유로의 양단부에 형성된 매니폴드(15a,15b,15c)는 크기가 각각 다르고, 서로 대칭되게 형성되어, 분리판(10)의 조립시 상대적인 위치확인이 가능한 것을 특징으로 하는 연료전지용 분리판.
- 청구항 1에 있어서,상기 매니폴드(15a,15b,15c)에서 수소, 산소 및 냉각수유로부분으로 도입되는 채널부(13)의 깊이를 달리하여, 공기극쪽에서 생성되는 물이 상기 채널부(13)나 기체확산층(12)에 고여서 반응기체들이 전달되지 않는 물질이동저항을 최소화하는 것을 특징으로 하는 연료전지용 분리판.
- 청구항 1 또는 청구항 2에 있어서,상기 가스유로 및 냉각수유로는 직사각형의 요철형태로 형성되고, 기체확산층 방향으로 돌출형성된 랜드부(14)와, 상기 기체확산층의 반대방향으로 오목하게 형성된 채널부(13)로 구성되되, 상기 랜드부(14)와 기체확산층(12) 사이에 고인 물이 채널부(13)로 이동되도록 랜드부(14)의 끝부분이 0~45도로 경사지게 형성된 것을 특징으로 하는 연료전지용 분리판.
- 청구항 3에 있어서,상기 기체확산층(12)과 접촉한 분리판 랜드부(14)의 표면특성이 친수성이고, 상기 기체확산층(12)의 표면특성은 소수성인 것을 특징으로 하는 연료전지용 분리판.
- 청구항 4에 있어서,상기 채널부(113)의 깊이는 0.2~0.8mm인 것을 특징으로 하는 연료전지용 분리판.
- 청구항 4에 있어서,상기 채널부(13)와 랜드부(14)의 비는 0.5~1.5mm : 0.5~1.5mm인 것을 특징으로 하는 연료전지용 분리판.
- 청구항 1에 있어서,상기 매니폴드에서 유로부분으로 도입되는 채널의 개수를 달리할 수 있도록 상기 수소측 및 공기측 매니폴드(15a,15b)의 면적비가 1 : 1.5~3인 것을 특징으로 하는 연료전지용 분리판.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8911919B2 (en) | 2010-09-29 | 2014-12-16 | Hyundai Motor Company | Local hydrophilic gas diffusion layer and fuel cell stack comprising the same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0831434A (ja) * | 1994-07-21 | 1996-02-02 | Hitachi Zosen Corp | 固体電解質型燃料電池 |
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- 2006-12-12 KR KR1020060126269A patent/KR100792869B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0831434A (ja) * | 1994-07-21 | 1996-02-02 | Hitachi Zosen Corp | 固体電解質型燃料電池 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8911919B2 (en) | 2010-09-29 | 2014-12-16 | Hyundai Motor Company | Local hydrophilic gas diffusion layer and fuel cell stack comprising the same |
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