WO2007029309A1 - 燃料電池用構成部品 - Google Patents
燃料電池用構成部品 Download PDFInfo
- Publication number
- WO2007029309A1 WO2007029309A1 PCT/JP2005/016285 JP2005016285W WO2007029309A1 WO 2007029309 A1 WO2007029309 A1 WO 2007029309A1 JP 2005016285 W JP2005016285 W JP 2005016285W WO 2007029309 A1 WO2007029309 A1 WO 2007029309A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mea
- rubber
- gasket
- lip
- impregnated
- Prior art date
Links
Classifications
-
- 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
-
- 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
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
-
- 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
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
-
- 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
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/028—Sealing means characterised by their material
- H01M8/0284—Organic resins; Organic polymers
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
-
- 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]
-
- 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
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- 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
Definitions
- the present invention relates to a fuel cell component constituting a fuel cell component, and more particularly, to a fuel cell component formed by integrally molding a gasket with MEA.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-95565
- the present invention can form a gasket in a single component in a fuel cell component formed by integrally molding a gasket on the MEA. It is an object of the present invention to provide a fuel cell component that does not need to be formed and that has a small clamping force during MEA compression.
- the fuel cell component of the present invention provides a gas to the MEA.
- a fuel cell component formed by integrally molding a gasket an MEA that is placed between a pair of separators and compressed during cell assembly, and a portion of rubber that is a gasket molding material is impregnated on the outer peripheral edge of the MEA
- the thickness of the rubber-impregnated portion and the flat gasket portion are set to be the same as the thickness of the MEA at the time of cell assembly.
- a rubber-impregnated portion is formed on the outer peripheral edge portion of the MEA, and a flat gasket portion is formed on the outer peripheral side thereof. Since the lip and the recess are formed on the part, the gasket is integrally formed on the outer peripheral part of the MEA that is not on both sides of the MEA plane. In addition, since the rubber-impregnated part and the flat gasket part have the same structure as the MEA thickness during cell assembly, the MEA and gasket lip are compressed during the cell assembly. The part and the flat gasket part are not compressed.
- the present invention has the following effects.
- the gasket since the gasket is integrally formed on the outer peripheral portion of the MEA, the gasket can be molded once, and it is necessary to form a through hole in the MEA. There is no. Also, when the cell is assembled, the MEA and gasket lip are compressed. The rubber-impregnated part and the flat gasket part are not compressed. Therefore, the tightening force when compressing the MEA is smaller than when all of them are compressed. be able to. Therefore, according to the intended purpose, the gasket can be molded once in the fuel cell component that is formed by integrally molding the gasket on the MEA, and the MEA has a through hole. It is possible to provide a component for a fuel cell that does not need to be formed and that requires only a small tightening force during MEA compression.
- FIG. 1 is a cross-sectional view of a main part of a fuel cell component according to an embodiment of the present invention, in which FIG. 1 (A) is a cross-sectional view of the main part showing a state before cell assembly. ) Is a cross-sectional view of the main part showing the state during cell assembly.
- FIG. 2 is an explanatory view showing a method for manufacturing the fuel cell component.
- the lip reaction force and the flat gasket reaction are required when the cell thickness during cell assembly is controlled at a constant size. Due to the difference in force, the dimensions can be easily managed during assembly.
- FIG. 1 is a cross-sectional view of a main part of a fuel cell component (also referred to as MEA-body gasket) 1 according to an embodiment of the present invention.
- FIG. 1 (A) shows a state before cell assembly.
- Figure (B) shows the state when the cell is assembled (ie after cell assembly)!
- a fuel cell component 1 is a fuel cell component 1 formed by integrally molding a gasket 3 with respect to a MEA (membrane electrode assembly) 2.
- the MEA2 is placed between the pair of separators 4 and 4 and is compressed when the cell is assembled.
- the outer peripheral edge of the MEA2 is impregnated with part of the rubber that is a gasket molding material.
- An impregnation portion 5 is formed.
- a flat gasket portion 6 made of the rubber is formed on the outer peripheral side of the rubber-impregnated portion 5 and has a sealing function in close contact with the separator 4 on the flat surface of the flat gasket portion 6.
- a lip 7 is formed, and a recess 8 is formed for releasing the lip 7 when the lip 7 is compressed.
- MEA2 for example, has a GDL (gas diffusion layer) disposed on both upper and lower surfaces of an ion exchange membrane via electrode layers, and the GDL is made of a porous material such as carbon fiber. Because it is shaped, it is possible to impregnate the inside with rubber, and the thickness is changed from d (Fig. 1 (A)) to d (Fig. 1 (B)) during cell assembly. Being compressed to reduce
- the thickness d of the MEA 2 before cell assembly is, for example, about 1 mm, and the thickness d of the MEA 2 at the time of cell assembly is, for example, about 0 ⁇ 6 to 0 ⁇ 7 mm.
- the rubber-impregnated portion 5 and the flat gasket portion 6 have the thickness d from the beginning of molding to the thickness d of the MEA2 at the time of cell assembly. Same
- Each of the lips 7 is formed into a body, and a recess 8 is formed on each of the inner and outer circumferences of the lip 7.
- the height h of the lip 7 is, for example, about 0.3 mm.
- the width w of the rubber-impregnated portion 5 is, for example, about 1 to 3 mm, and the width w of the flat gasket portion 6 (that is, the gasket 3) is, for example, about 3 mm.
- the MEA 2 When manufacturing the fuel cell component 1 having the above-described configuration, the MEA 2 is inserted into the molding die 10 as shown in FIG. 2, and in this state, rubber as a gasket molding material is poured into the gasket. Mold 3 Part of the rubber is impregnated into the outer periphery of the MEA 2 to form the rubber-impregnated portion 5. As shown in the figure, the parting part 11 of the mold 10 has a protrusion 12 for stopping the impregnation in addition to the space 12 for inserting the MEA 2 and the space 13 for forming the gasket 3. It is preferable to provide the MEA compression part 14 to exhibit.
- the rubber-impregnated portion 5 is formed on the outer peripheral edge portion of the MEA 2, and the flat gasket portion 6 is further formed on the outer peripheral side thereof. Since the lip 7 and recess 8 are formed on the flat surface of 6, as shown in Fig. 1 (A), gasket 3 is integrated into the outer periphery of MEA2 that is not on both sides of the MEA2 plane. Is done. Accordingly, the gasket 3 can be molded in one time using the molding die 10 as shown in the figure, and there is no need to form a material communication portion such as a through hole in the MEA 2.
- the thickness d of the rubber-impregnated portion 5 and the flat gasket portion 6 is MEA2 at the time of cell assembly.
- the lip 7 of the MEA 2 and the gasket 3 is compressed.
- the rubber-impregnated portion 5 and the flat gasket portion 6 are not compressed. Therefore, compared to the case where all of these are compressed simultaneously. Thus, the tightening force during MEA2 compression can be reduced.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020077019719A KR101199736B1 (ko) | 2005-09-06 | 2005-09-06 | 연료전지용 구성 부품 |
US11/883,049 US20080213649A1 (en) | 2005-09-06 | 2005-09-06 | Component for Constituting Fuel Cell |
PCT/JP2005/016285 WO2007029309A1 (ja) | 2005-09-06 | 2005-09-06 | 燃料電池用構成部品 |
EP05778475.3A EP1923943B1 (en) | 2005-09-06 | 2005-09-06 | Component for constituting fuel cell |
CNB2005800482408A CN100559642C (zh) | 2005-09-06 | 2005-09-06 | 燃料电池用结构部件 |
US14/248,632 US20140220472A1 (en) | 2005-09-06 | 2014-04-09 | Component for constituting fuel cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/016285 WO2007029309A1 (ja) | 2005-09-06 | 2005-09-06 | 燃料電池用構成部品 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/883,049 A-371-Of-International US20080213649A1 (en) | 2005-09-06 | 2005-09-06 | Component for Constituting Fuel Cell |
US14/248,632 Continuation US20140220472A1 (en) | 2005-09-06 | 2014-04-09 | Component for constituting fuel cell |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007029309A1 true WO2007029309A1 (ja) | 2007-03-15 |
Family
ID=37835446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/016285 WO2007029309A1 (ja) | 2005-09-06 | 2005-09-06 | 燃料電池用構成部品 |
Country Status (5)
Country | Link |
---|---|
US (2) | US20080213649A1 (ja) |
EP (1) | EP1923943B1 (ja) |
KR (1) | KR101199736B1 (ja) |
CN (1) | CN100559642C (ja) |
WO (1) | WO2007029309A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5062389B2 (ja) | 2005-07-15 | 2012-10-31 | Nok株式会社 | 燃料電池およびその製造方法 |
US8883365B2 (en) * | 2010-02-22 | 2014-11-11 | GM Global Technology Operations LLC | Fuel cell stack discrete header |
JP6383203B2 (ja) * | 2014-07-25 | 2018-08-29 | Nok株式会社 | プレート一体ガスケットの製造方法 |
DE102016202010A1 (de) | 2016-02-10 | 2017-08-10 | Volkswagen Aktiengesellschaft | Bipolarplatte mit asymmetrischen Dichtungsabschnitten, sowie Brennstoffzellenstapel mit einer solchen |
JP2019190604A (ja) * | 2018-04-27 | 2019-10-31 | Nok株式会社 | Gdl一体ガスケット及びその製造方法 |
US11641018B2 (en) | 2018-06-22 | 2023-05-02 | Hyundai Motor Company | Unit cell of fuel cell and method of manufacturing the same |
KR20200039393A (ko) | 2018-10-05 | 2020-04-16 | 현대자동차주식회사 | 연료전지의 함수량 추정방법 및 제어방법과 그 시스템 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001509304A (ja) * | 1997-01-29 | 2001-07-10 | マグネート−モートア、ゲゼルシャフト、フュール、マグネートモートリシェ、テヒニク、ミット、ベシュレンクテル、ハフツング | 集積密封縁付き膜−電極ユニットおよびその製造方法 |
JP2001510932A (ja) * | 1997-07-16 | 2001-08-07 | バラード パワー システムズ インコーポレイティド | 電気化学的燃料電池における膜電極組立体(mea)のための弾性シールおよび該シールの製造方法 |
WO2002001658A1 (fr) * | 2000-06-29 | 2002-01-03 | Nok Corporation | Composant destine a une pile a combustible |
JP2002042838A (ja) * | 2000-07-31 | 2002-02-08 | Honda Motor Co Ltd | 燃料電池、多孔質導電体・シール構造体の製造方法及び電極膜構造体の製造方法 |
WO2002043172A1 (fr) * | 2000-11-21 | 2002-05-30 | Nok Corporation | Partie constitutive pour pile a combustible |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100525974B1 (ko) * | 2002-08-07 | 2005-11-03 | 마쯔시다덴기산교 가부시키가이샤 | 연료전지 |
US7070876B2 (en) * | 2003-03-24 | 2006-07-04 | Ballard Power Systems, Inc. | Membrane electrode assembly with integrated seal |
ATE492917T1 (de) * | 2004-02-02 | 2011-01-15 | Panasonic Corp | Polymer-elektrolyt-brennstoffzelle |
JP5062389B2 (ja) * | 2005-07-15 | 2012-10-31 | Nok株式会社 | 燃料電池およびその製造方法 |
-
2005
- 2005-09-06 US US11/883,049 patent/US20080213649A1/en not_active Abandoned
- 2005-09-06 CN CNB2005800482408A patent/CN100559642C/zh not_active Expired - Fee Related
- 2005-09-06 EP EP05778475.3A patent/EP1923943B1/en not_active Expired - Fee Related
- 2005-09-06 WO PCT/JP2005/016285 patent/WO2007029309A1/ja active Application Filing
- 2005-09-06 KR KR1020077019719A patent/KR101199736B1/ko active IP Right Grant
-
2014
- 2014-04-09 US US14/248,632 patent/US20140220472A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001509304A (ja) * | 1997-01-29 | 2001-07-10 | マグネート−モートア、ゲゼルシャフト、フュール、マグネートモートリシェ、テヒニク、ミット、ベシュレンクテル、ハフツング | 集積密封縁付き膜−電極ユニットおよびその製造方法 |
JP2001510932A (ja) * | 1997-07-16 | 2001-08-07 | バラード パワー システムズ インコーポレイティド | 電気化学的燃料電池における膜電極組立体(mea)のための弾性シールおよび該シールの製造方法 |
WO2002001658A1 (fr) * | 2000-06-29 | 2002-01-03 | Nok Corporation | Composant destine a une pile a combustible |
JP2002042838A (ja) * | 2000-07-31 | 2002-02-08 | Honda Motor Co Ltd | 燃料電池、多孔質導電体・シール構造体の製造方法及び電極膜構造体の製造方法 |
WO2002043172A1 (fr) * | 2000-11-21 | 2002-05-30 | Nok Corporation | Partie constitutive pour pile a combustible |
Non-Patent Citations (1)
Title |
---|
See also references of EP1923943A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR101199736B1 (ko) | 2012-11-08 |
EP1923943A4 (en) | 2009-10-28 |
US20080213649A1 (en) | 2008-09-04 |
EP1923943A1 (en) | 2008-05-21 |
EP1923943B1 (en) | 2013-07-17 |
CN101120473A (zh) | 2008-02-06 |
CN100559642C (zh) | 2009-11-11 |
KR20080041598A (ko) | 2008-05-13 |
US20140220472A1 (en) | 2014-08-07 |
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