WO2013184122A1 - Fuel cell gas diffusion layer with molded on seal - Google Patents

Fuel cell gas diffusion layer with molded on seal Download PDF

Info

Publication number
WO2013184122A1
WO2013184122A1 PCT/US2012/041523 US2012041523W WO2013184122A1 WO 2013184122 A1 WO2013184122 A1 WO 2013184122A1 US 2012041523 W US2012041523 W US 2012041523W WO 2013184122 A1 WO2013184122 A1 WO 2013184122A1
Authority
WO
WIPO (PCT)
Prior art keywords
diffusion layer
gas diffusion
seal member
fuel cell
edge
Prior art date
Application number
PCT/US2012/041523
Other languages
French (fr)
Inventor
Tommy Skiba
Original Assignee
United Technologies Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corporation filed Critical United Technologies Corporation
Priority to PCT/US2012/041523 priority Critical patent/WO2013184122A1/en
Publication of WO2013184122A1 publication Critical patent/WO2013184122A1/en

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
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0234—Carbonaceous material
    • 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
    • H01M8/0239—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
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/023—Porous and characterised by the material
    • H01M8/0241—Composites
    • 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
    • H01M8/028—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
    • H01M8/02—Details
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0286—Processes for forming seals
    • 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

  • Fuel cells are useful for generating electricity based upon an electrochemical reaction. There are various components within a fuel cell that direct movement of the reactants, such as hydrogen and oxygen, in a manner that facilitates the electrochemical reaction. Controlling reactant flow within a fuel cell requires isolating the reactants from each other at various locations. Seals between layers of a fuel cell are useful for controlling reactant movement within the fuel cell and for isolating the reactants from each other as desired.
  • a gas diffusion layer is placed between a catalyst layer and a reactant distribution plate.
  • a seal is typically placed adjacent the gas diffusion layer during the fuel cell assembly process. The use of such seals introduces additional labor and time because precision is required when placing the seal in the desired position during the assembly process.
  • An exemplary fuel cell component includes a generally planar, porous gas diffusion layer.
  • a thermoplastic material at least partially impregnates a selected portion of the gas diffusion layer.
  • a seal member is molded onto the portion that includes the thermoplastic material.
  • An exemplary method of making a fuel cell component includes at least partially impregnating a selected portion of a generally planar, porous gas diffusion layer with a thermoplastic material. The method includes molding a seal onto the portion that includes the thermoplastic material.
  • Figure 1 schematically illustrates an example fuel cell assembly.
  • Figure 2 schematically illustrates an example fuel cell gas diffusion layer component.
  • Figure 3 is a cross-sectional illustration taken along the lines 3-3 in Figure 2.
  • Figure 4 schematically illustrates an example method of making a gas diffusion layer component like the example of Figures 2 and 3.
  • FIG. 1 schematically illustrates a fuel cell assembly 20. Selected portions of the fuel cell assembly 20 are illustrated including a membrane 22 that is situated between catalyst layers 24 and 26. One of the catalyst layers 24, 26 serves as an anode while the other serves as a cathode. Gas diffusion layers 28 are positioned between the catalyst layers and reactant distribution plates 30.
  • FIG 2 schematically shows an example gas diffusion layer component 28.
  • the gas diffusion layer component 28 includes a generally planar, porous body 40.
  • the body 40 comprises a sheet of carbon paper.
  • the illustrated example includes a generally rectangular body having edges 42, 44, 46 and 48. The edges 42-48 establish an outer perimeter or periphery of the body 40.
  • a portion 50 of the body 40 is at least partially impregnated with a thermoplastic material.
  • the portion 50 establishes a border around the outer periphery of the body 40.
  • the portion 50 has a width across each segment of the border 50 between the outer edges 42, 44, 46 and 48 of the body and inner border edges 52, 54, 56 and 58, respectively.
  • thermoplastic material establishes a sealed border of the body 40 that prevents fluid from passing through the edges 42-48 of the body 40 in a direction parallel to the plane of the body 40.
  • a sealed border along the portion 50 contains fluid, such as a reactant gas, with the fuel cell assembly 20 during operation.
  • the seal along the portion 50 prevents fluid leaks through the gas diffusion layer body 40.
  • Another seal member is included in the illustrated example to seal the interface between the body 40 and the adjacent catalyst layer 24 or 26.
  • a seal member 60 is molded onto the portion 50 of the body 40.
  • the seal member 60 is situated on the portion 50 such that the seal member 60 is spaced inwardly of the edges 42-48 of the body 40.
  • the seal member 60 comprises an elastomer material. The seal member 60 is received against the thermoplastic material that impregnates the portion 50 as can be appreciated from Figures 2 and 3.
  • the seal member 60 is situated on the portion 50 such that the seal member 60 establishes a seal along the periphery of the gas diffusion layer component 28 to prevent any fluid leaks out of the fuel cell assembly 20 along the edges of the interface between the adjacent catalyst 24 or 26 and the gas diffusion layer component 28.
  • the seal member 60 has a length that is less than the combined length of the edges 42-48 of the body 40 and greater than a combined length of the edges 52-58 on the inwardly edge of the portion 50.
  • the seal member 60 has a width that is smaller than the width of the impregnated portion 50.
  • the seal member 60 in the illustrated example is generally centered on the portion 50.
  • FIG. 4 schematically illustrates an example method of making a gas diffusion layer component 28.
  • a thermoplastic impregnation station 70 includes equipment for exposing a piece of the material for the body 40 to thermoplastic material.
  • a sheet of carbon paper is situated within the impregnation station 70 and a melted thermoplastic material is applied to the selected portion of the body 40.
  • Example techniques include heating or melting the thermoplastic material onto the body 40 and applying pressure such that the thermoplastic material at least partially penetrates or impregnates the porous material of the body 40, such as carbon paper.
  • the body 40 with the thermoplastic impregnated portion 50 is situated within a mold 72.
  • Material for establishing the seal member 60 is applied to the portion 50 within the mold 72.
  • the mold 72 includes a groove or recess having a configuration corresponding to the profile of the seal member 60 as shown in Figure 3.
  • the example of Figure 4 includes heating the material of the seal member 60 when molding it onto the portion 50 of the body 40.
  • the temperature used during the molding process for establishing the seal member 60 is less than a melting temperature of the thermoplastic material used for establishing the portion 50. This allows for maintaining the stability of the thermoplastic material within the portion 50 during the seal molding portion of the process schematically shown in Figure 4.
  • the elevated temperature of the seal material may cause some limited, localized melting of the thermoplastic material at the position where the seal material is applied to the portion 50. Such localized melting facilitates a bond between the seal material and the thermoplastic material of the portion 50.
  • Example thermoplastic materials for impregnating the body 40 include polyethylene (PE), polypropylene (PP), polyethylene naphthalate (PEN) or polyethereketone (PEEK).
  • the seal member 60 comprises a material that is distinct from the thermoplastic material.
  • Example materials for establishing the seal 60 include silicone, ethylene propylene diene monomer (EPDM) or a fluoroelastomer.
  • One feature of the disclosed example gas diffusion layer component is that having the seal molded onto a portion 50 of the body 40 that is at least partially impregnated with a thermoplastic material reduces the time and complexity of a fuel cell assembly process. A separate seal need not be handled during the assembly process. Additionally, the seal member 60 is situated in a desired, precise position on the gas diffusion layer component 28 throughout the fuel cell assembly process.
  • the disclosed example allows for more economically manufacturing fuel cells. The disclosed example provides a reliable fluid seal along the edges of the gas diffusion layer 28 and at the interface between the gas diffusion layer 28 and the adjacent catalyst layer 24 or 26.

Landscapes

  • 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

An exemplary fuel cell component includes a generally planar, porous gas diffusion layer. A thermoplastic material at least partially impregnates a selected portion of the gas diffusion layer. A seal member is molded onto the portion of the gas diffusion layer that includes the thermoplastic material.

Description

FUEL CELL GAS DIFFUSION LAYER
WITH MOLDED ON SEAL
BACKGROUND
[oooi] Fuel cells are useful for generating electricity based upon an electrochemical reaction. There are various components within a fuel cell that direct movement of the reactants, such as hydrogen and oxygen, in a manner that facilitates the electrochemical reaction. Controlling reactant flow within a fuel cell requires isolating the reactants from each other at various locations. Seals between layers of a fuel cell are useful for controlling reactant movement within the fuel cell and for isolating the reactants from each other as desired.
[0002] In some fuel cell configurations, a gas diffusion layer is placed between a catalyst layer and a reactant distribution plate. A seal is typically placed adjacent the gas diffusion layer during the fuel cell assembly process. The use of such seals introduces additional labor and time because precision is required when placing the seal in the desired position during the assembly process.
SUMMARY
[0003] An exemplary fuel cell component includes a generally planar, porous gas diffusion layer. A thermoplastic material at least partially impregnates a selected portion of the gas diffusion layer. A seal member is molded onto the portion that includes the thermoplastic material.
[000 ] An exemplary method of making a fuel cell component includes at least partially impregnating a selected portion of a generally planar, porous gas diffusion layer with a thermoplastic material. The method includes molding a seal onto the portion that includes the thermoplastic material.
[0005] The various features and advantages of a disclosed example embodiment will become apparent to those skilled in the art from the following detailed description. The drawings that accompany the detailed description can be briefly described as follows.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Figure 1 schematically illustrates an example fuel cell assembly. [0007] Figure 2 schematically illustrates an example fuel cell gas diffusion layer component.
[0008] Figure 3 is a cross-sectional illustration taken along the lines 3-3 in Figure 2.
[0009] Figure 4 schematically illustrates an example method of making a gas diffusion layer component like the example of Figures 2 and 3.
DETAILED DESCRIPTION
[oooio] Figure 1 schematically illustrates a fuel cell assembly 20. Selected portions of the fuel cell assembly 20 are illustrated including a membrane 22 that is situated between catalyst layers 24 and 26. One of the catalyst layers 24, 26 serves as an anode while the other serves as a cathode. Gas diffusion layers 28 are positioned between the catalyst layers and reactant distribution plates 30.
[oooii] Figure 2 schematically shows an example gas diffusion layer component 28. In this example, the gas diffusion layer component 28 includes a generally planar, porous body 40. In one example, the body 40 comprises a sheet of carbon paper. The illustrated example includes a generally rectangular body having edges 42, 44, 46 and 48. The edges 42-48 establish an outer perimeter or periphery of the body 40.
[00012] A portion 50 of the body 40 is at least partially impregnated with a thermoplastic material. In this example, the portion 50 establishes a border around the outer periphery of the body 40. The portion 50 has a width across each segment of the border 50 between the outer edges 42, 44, 46 and 48 of the body and inner border edges 52, 54, 56 and 58, respectively.
[00013] The thermoplastic material establishes a sealed border of the body 40 that prevents fluid from passing through the edges 42-48 of the body 40 in a direction parallel to the plane of the body 40. A sealed border along the portion 50 contains fluid, such as a reactant gas, with the fuel cell assembly 20 during operation.
[0001 ] The seal along the portion 50 prevents fluid leaks through the gas diffusion layer body 40. Another seal member is included in the illustrated example to seal the interface between the body 40 and the adjacent catalyst layer 24 or 26.
[00015] A seal member 60 is molded onto the portion 50 of the body 40. The seal member 60 is situated on the portion 50 such that the seal member 60 is spaced inwardly of the edges 42-48 of the body 40. In one example, the seal member 60 comprises an elastomer material. The seal member 60 is received against the thermoplastic material that impregnates the portion 50 as can be appreciated from Figures 2 and 3.
[00016] In the illustrated example, the seal member 60 is situated on the portion 50 such that the seal member 60 establishes a seal along the periphery of the gas diffusion layer component 28 to prevent any fluid leaks out of the fuel cell assembly 20 along the edges of the interface between the adjacent catalyst 24 or 26 and the gas diffusion layer component 28. In the illustrated example, the seal member 60 has a length that is less than the combined length of the edges 42-48 of the body 40 and greater than a combined length of the edges 52-58 on the inwardly edge of the portion 50. In the illustrated example, the seal member 60 has a width that is smaller than the width of the impregnated portion 50. The seal member 60 in the illustrated example is generally centered on the portion 50.
[00017] Figure 4 schematically illustrates an example method of making a gas diffusion layer component 28. A thermoplastic impregnation station 70 includes equipment for exposing a piece of the material for the body 40 to thermoplastic material. In one example, a sheet of carbon paper is situated within the impregnation station 70 and a melted thermoplastic material is applied to the selected portion of the body 40. Example techniques include heating or melting the thermoplastic material onto the body 40 and applying pressure such that the thermoplastic material at least partially penetrates or impregnates the porous material of the body 40, such as carbon paper.
[00018] After the thermoplastic material has sufficiently cooled, the body 40 with the thermoplastic impregnated portion 50 is situated within a mold 72. Material for establishing the seal member 60 is applied to the portion 50 within the mold 72. In one example, the mold 72 includes a groove or recess having a configuration corresponding to the profile of the seal member 60 as shown in Figure 3.
[00019] The example of Figure 4 includes heating the material of the seal member 60 when molding it onto the portion 50 of the body 40. The temperature used during the molding process for establishing the seal member 60 is less than a melting temperature of the thermoplastic material used for establishing the portion 50. This allows for maintaining the stability of the thermoplastic material within the portion 50 during the seal molding portion of the process schematically shown in Figure 4. [00020] In some examples, the elevated temperature of the seal material may cause some limited, localized melting of the thermoplastic material at the position where the seal material is applied to the portion 50. Such localized melting facilitates a bond between the seal material and the thermoplastic material of the portion 50.
[00021] Example thermoplastic materials for impregnating the body 40 include polyethylene (PE), polypropylene (PP), polyethylene naphthalate (PEN) or polyethereketone (PEEK). The seal member 60 comprises a material that is distinct from the thermoplastic material. Example materials for establishing the seal 60 include silicone, ethylene propylene diene monomer (EPDM) or a fluoroelastomer.
[00022] One feature of the disclosed example gas diffusion layer component is that having the seal molded onto a portion 50 of the body 40 that is at least partially impregnated with a thermoplastic material reduces the time and complexity of a fuel cell assembly process. A separate seal need not be handled during the assembly process. Additionally, the seal member 60 is situated in a desired, precise position on the gas diffusion layer component 28 throughout the fuel cell assembly process. The disclosed example allows for more economically manufacturing fuel cells. The disclosed example provides a reliable fluid seal along the edges of the gas diffusion layer 28 and at the interface between the gas diffusion layer 28 and the adjacent catalyst layer 24 or 26.
[00023] The preceding description is exemplary rather than limiting in nature.
Variations and modifications to the disclosed examples may become apparent to those skilled in the art that do not necessarily depart from the essence of this invention. The scope of legal protection given to this invention can only be determined by studying the following claims.

Claims

CLAIMS I claim:
1. A fuel cell component, comprising
a generally planar, porous gas diffusion layer;
a thermoplastic material at least partially impregnating a selected portion of the gas diffusion layer; and
a seal member molded onto the thermoplastic impregnated portion of the gas diffusion layer.
2. The fuel cell component of claim 1 , wherein
the gas diffusion layer includes an edge;
the portion includes the edge; and
the seal member is spaced inwardly from the edge.
3. The fuel cell component of claim 2, wherein
the portion extends about an entire periphery of the gas diffusion layer; and the seal member is situated on the portion along the entire periphery inward of the edge.
4. The fuel cell component of claim 1, wherein the seal member is received on the thermoplastic material.
5. The fuel cell component of claim 1, wherein the seal member comprises a material that is distinct from the thermoplastic material.
6. The fuel cell component of claim 5, wherein the seal member comprises an elastomer.
7. The fuel cell component of claim 1, wherein the gas diffusion layer comprises a sheet of carbon paper.
8. A method of making a fuel cell component, comprising the steps of:
at least partially impregnating a selected portion of a generally planar, porous gas diffusion layer with a thermoplastic material; and
molding a seal onto the thermoplastic impregnated portion of the gas diffusion layer.
9. The method of claim 8, wherein the molding comprises
placing the gas diffusion layer with the impregnated thermoplastic material into a mold; and
establishing the seal on the portion of the gas diffusion layer within the mold.
10. The method of claim 8, wherein the molding comprises heating a material of the seal to a temperature that is lower than a melting temperature of the thermoplastic material.
11. The method of claim 8, wherein
the gas diffusion layer includes an edge;
the portion includes the edge; and
the seal member is molded onto the portion in a position where the seal member is spaced inwardly from the edge.
12. The method of claim 11, comprising establishing the seal along an entire periphery of the gas diffusion layer inward of the edge.
13. The method of claim 8, wherein the molding includes establishing contact between the seal member and the thermoplastic material.
14. The method of claim 8, wherein the seal member comprises a material that is distinct from the thermoplastic material.
15. The method of claim 14, wherein the seal member comprises an elastomer.
16. The method of claim 8, wherein the gas diffusion layer comprises a sheet of carbon paper.
17. The method of claim 1, wherein
the portion of the gas diffusion layer comprises a border along an edge of the gas diffusion layer, the border having a first width; and
the seal member is situated within the border and has a second width that is smaller than the first width.
18. The method of claim 17, wherein
the edge has a length corresponding to an outer perimeter of the gas diffusion layer;
the border has an outer length dimension corresponding to the length of the edge;
the border has an inner length dimension that is smaller than the outer length dimension; and
the seal member has a length that is smaller than the border outer length and larger than the border inner length.
PCT/US2012/041523 2012-06-08 2012-06-08 Fuel cell gas diffusion layer with molded on seal WO2013184122A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2012/041523 WO2013184122A1 (en) 2012-06-08 2012-06-08 Fuel cell gas diffusion layer with molded on seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2012/041523 WO2013184122A1 (en) 2012-06-08 2012-06-08 Fuel cell gas diffusion layer with molded on seal

Publications (1)

Publication Number Publication Date
WO2013184122A1 true WO2013184122A1 (en) 2013-12-12

Family

ID=49712377

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/041523 WO2013184122A1 (en) 2012-06-08 2012-06-08 Fuel cell gas diffusion layer with molded on seal

Country Status (1)

Country Link
WO (1) WO2013184122A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030104262A1 (en) * 2000-06-29 2003-06-05 Yuichi Kuroki Constituent part for fuel cell
US20040096730A1 (en) * 2000-11-21 2004-05-20 Yuichi Kuroki Constituent part for fuel cell
US20040137303A1 (en) * 2001-04-23 2004-07-15 Yuichi Kuroki Fuel cell and method of manufacturing the fuel cell
KR20060051518A (en) * 2004-09-28 2006-05-19 엔오케이 가부시키가이샤 Constituent part for fuel cell
US20080124458A1 (en) * 2004-10-01 2008-05-29 Tatsuya Okabe Method Of Producing Gasket For Fuel Cells

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030104262A1 (en) * 2000-06-29 2003-06-05 Yuichi Kuroki Constituent part for fuel cell
US20040096730A1 (en) * 2000-11-21 2004-05-20 Yuichi Kuroki Constituent part for fuel cell
US20040137303A1 (en) * 2001-04-23 2004-07-15 Yuichi Kuroki Fuel cell and method of manufacturing the fuel cell
KR20060051518A (en) * 2004-09-28 2006-05-19 엔오케이 가부시키가이샤 Constituent part for fuel cell
US20080124458A1 (en) * 2004-10-01 2008-05-29 Tatsuya Okabe Method Of Producing Gasket For Fuel Cells

Similar Documents

Publication Publication Date Title
EP2415110B1 (en) Manufacturing method of fuel cell module and manufacturing method of fuel cell
EP2107628B1 (en) Fuel cell module and manufacturing method thereof
EP2415111B1 (en) Manufacturing method of cell assembly for fuel cell and manufacturing method of fuel cell
US8298716B2 (en) Method of manufacturing seal-integrated type membrane electrode assembly
CN1322619C (en) Fuel cell and its making method
US8679697B1 (en) Compressible fuel cell subgasket with integrated seal
KR20010071677A (en) Gas-proof assembly composed of a bipolar plate and a membrane-electrode unit of polymer electrolyte membrane fuel cells
JP5643146B2 (en) Fuel cell
US20150380746A1 (en) Fuel cell and method of producing the fuel cell
EP3257097B1 (en) Seal for solid polymer electrolyte fuel cell
US20200243876A1 (en) Resin frame equipped membrane electrode assembly for fuel cell and method of producing the same
EP3224888B1 (en) Fuel cell component and method of manufacturing of a fuel cell component
WO2013184122A1 (en) Fuel cell gas diffusion layer with molded on seal
US20230378506A1 (en) Membrane-electrode unit for an electrochemical cell, and method for manufacturing a membrane-electrode unit
US10003091B2 (en) Phosphoric acid fuel cell component having a polymer impregnated region
EP2959528B1 (en) Fuel cell component having a flap extending from a polymer impregnated region
JP2014071944A (en) Fuel cell stack
US20160006067A1 (en) Assembly for making a fuel cell component and a method of using the assembly
EP2873106B1 (en) Fuel cell electrode assembly
JP2013145718A (en) Fuel cell and method for manufacturing the same
MXPA00012860A (en) Gas-proof assembly composed of a bipolar plate and a membrane-electrode unit of polymer electrolyte membrane fuel cells

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12878628

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12878628

Country of ref document: EP

Kind code of ref document: A1