CN115513487A - Method for manufacturing film integrated gasket - Google Patents

Method for manufacturing film integrated gasket Download PDF

Info

Publication number
CN115513487A
CN115513487A CN202210573452.3A CN202210573452A CN115513487A CN 115513487 A CN115513487 A CN 115513487A CN 202210573452 A CN202210573452 A CN 202210573452A CN 115513487 A CN115513487 A CN 115513487A
Authority
CN
China
Prior art keywords
gasket
cavity
film
opening width
resin film
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202210573452.3A
Other languages
Chinese (zh)
Inventor
白川创平
浦川哲也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nok Corp
Original Assignee
Nok Corp
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 Nok Corp filed Critical Nok Corp
Publication of CN115513487A publication Critical patent/CN115513487A/en
Pending legal-status Critical Current

Links

Images

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
    • H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention provides a method for manufacturing a thin film integrated gasket capable of suppressing molding defects, the method comprising: a first step of clamping the first lower die (310) and the first upper die (320) with the resin film (120) disposed between the first lower die (310) and the first upper die (320), filling the first cavity (321) with a molding material, and molding a first gasket (131); and a second step of clamping the second lower die (330) having a groove (331) in which the first shim (131) is disposed and the second upper die (340) in a state in which the resin film (120) in which the first shim (131) is integrally provided is disposed between the second lower die (330) and the second upper die (340), and filling the second cavity (341) with a molding material to mold the second shim, wherein the first opening width (W32) is narrower than the second opening width (W34).

Description

Method for manufacturing film integrated gasket
Technical Field
The present invention relates to a method for manufacturing a film integrated gasket in which gaskets are integrally provided on both surfaces of a film.
Background
The polymer electrolyte fuel cell includes an electrolyte membrane. A technique for reinforcing the electrolyte membrane with a resin film is known. In addition, in order to improve workability in assembling a fuel cell or the like, a technique is also known in which spacers are integrally provided on both surfaces of a resin film. Such a conventional film integrated gasket and a method for manufacturing the same will be described with reference to fig. 4 and 5. FIG. 4 is a portion of a cross-sectional view of a prior art thin film integrated gasket. FIG. 5 is a prior art process diagram for manufacturing a membrane-integral gasket showing a portion of a cross-sectional view of the membrane-integral gasket and a mold.
The conventional film integrated gasket 500 includes a resin film 510, and a first gasket 521 and a second gasket 522 integrally provided on both surfaces of the resin film 510 with respect to the resin film 510. The second gasket 522 has the same size and shape as the first gasket 521, and is provided at a position along the front and back surfaces of the first gasket 521 with the resin film 510 interposed therebetween.
Referring to fig. 5, a method for manufacturing the integrated film gasket 500 will be described. First, the first lower mold 610 and the upper mold 620 having the cavity 621 in which the first gasket 521 is molded are clamped with the resin film 510 disposed between the first lower mold 610 and the upper mold 620 (see fig. 5 a). Then, the cavity 621 is filled with a molding material to mold the first gasket 521. Thereafter, the mold is opened, and the resin film 510 with the first gasket 521 integrally molded therewith is taken out.
Next, the second lower mold 630 having the groove 631 in which the first gasket 521 is disposed and the upper mold 620 having the cavity 621 in which the second gasket 522 is molded are clamped in a state in which the resin film 510 in which the first gasket 521 is integrally provided is disposed between the second lower mold 630 and the upper mold 620 (see fig. 5 (b)). Then, the cavity 621 is filled with a molding material to mold the second gasket 522. Thereafter, the mold is opened, and the resin film 510 in which the first gasket 521 and the second gasket 522 are integrally molded is taken out.
As described above, the upper mold 620 having the cavity 621 for molding the first gasket 521 and the second gasket 522 uses a mold having the same mold or the same size and shape of the cavity 621. In contrast, in the lower mold, when first gasket 521 is molded, first lower mold 610 having a flat surface at least at a portion facing cavity 621 of upper mold 620 is used. In the case of molding the second gasket 522, the second lower mold 630 having the groove 631 in which the first gasket 521 is disposed is used so that the first gasket 521 does not interfere with the second lower mold.
In order that the groove 631 does not interfere with the first gasket 521, a gap is formed between the first gasket 521 and both side surfaces and the lower surface of the groove 631. Therefore, the opening width W63 of the groove 631 on the resin film side in the direction perpendicular to the extending direction of the groove 631 is configured to be wider than the opening width W62 of the cavity 621 on the resin film side in the direction perpendicular to the extending direction of the cavity 621. Therefore, when the mold is closed for molding the second gasket 522, the gaps S are formed between the first gasket 521 and the both side surfaces of the groove 631. Thus, the gap S is present between the resin film 510 and the front and back sides of the upper mold 620 on both sides of the cavity 621. Therefore, since the resin film 510 has flexibility, the pressing force of the upper mold 620 against the resin film 510 tends to be insufficient in the X portion surrounded by a circle in the drawing. Therefore, burrs are likely to be generated, which makes post-processing difficult, and molding defects such as leakage of molding material may occur.
In addition, the present invention is not limited to the case of manufacturing a thin-film integrated gasket provided in a fuel cell, and in particular, a thin-film integrated gasket in which gaskets are integrally provided on both surfaces of a flexible thin film may cause the same problem in manufacturing.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2010-67371
Patent document 2: japanese patent laid-open No. 2009-99531
Patent document 3: japanese patent laid-open publication No. 2006-344541
Disclosure of Invention
Problems to be solved by the invention
The invention aims to provide a method for manufacturing a film integrated gasket capable of inhibiting poor molding.
Means for solving the problems
The present invention adopts the following means to solve the above problems.
That is, the present invention provides a method for manufacturing a film-integrated gasket having a portion in which a first gasket is integrally provided on one surface of a film and a second gasket is integrally provided on the other surface of the film, that is, at a position on the front and back surfaces of the first gasket so as to be along the first gasket, the method comprising:
a first step of closing a first lower die and a first upper die having a first cavity for molding a first gasket, in a state where the film is disposed between the first lower die and the first upper die, and filling a molding material into the first cavity to mold the first gasket; and
a second step of closing a second lower die having a groove for disposing the first gasket and a second upper die having a second cavity for molding the second gasket in a state where the film in which the first gasket is integrally provided is disposed between the second lower die and the second upper die, filling a molding material into the second cavity, and molding the second gasket,
wherein a first opening width of the film side in a direction perpendicular to an extending direction of the first cavity in the first cavity is narrower than a second opening width of the film side in a direction perpendicular to an extending direction of the second cavity in the second cavity.
According to the present invention, the width of the film side in the first gasket molded by the first cavity is narrower than the width of the second opening in the second cavity. This can narrow the groove width of the groove in the second lower die. Therefore, the gap between the front and back sides of the second cavity formed in the second upper mold with the thin film interposed therebetween can be narrowed or eliminated.
Preferably, the second opening width is equal to or greater than a third opening width on the film side in a direction perpendicular to an extending direction of the groove in the groove.
This makes it possible to prevent a gap from being formed between the film and the front and back surfaces of the second cavity in the second upper die.
Characterized in that the center of the third opening width is located on the front and back sides of the center of the second opening width with the film interposed therebetween.
Thus, no gap is formed between the film and the front and back sides of the second cavity in the second upper die.
Preferably, the thin film is a resin thin film that reinforces an electrolyte membrane provided in the fuel cell.
The above-described structures may be combined as much as possible.
Effects of the invention
As described above, according to the present invention, it is possible to suppress molding defects.
Drawings
FIG. 1 is a top view of a thin film integrated gasket according to an embodiment of the present invention.
Fig. 2 is a partial cross-sectional view of a fuel cell including a membrane integrated gasket according to an embodiment of the present invention.
FIG. 3 is a process diagram for manufacturing a thin film integrated gasket according to an embodiment of the present invention.
FIG. 4 is a portion of a cross-sectional view of a prior art thin film integrated gasket.
FIG. 5 is a process diagram for manufacturing a prior art membrane integrated gasket.
Detailed Description
Hereinafter, a mode for carrying out the present invention will be described in detail by way of example based on embodiments with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in the embodiments are not intended to limit the scope of the present invention to these values unless otherwise specifically stated. In the following embodiments, a case where the thin film integrated gasket is used in a fuel cell will be described as an example.
(examples)
A method for manufacturing a thin film integrated gasket according to an embodiment of the present invention will be described with reference to fig. 1 to 3. FIG. 1 is a top view of a thin film integrated gasket according to an embodiment of the present invention. Fig. 2 is a part of a cross-sectional view of a fuel cell including a membrane-integrated gasket according to an embodiment of the present invention, and the cross-sectional view of the membrane-integrated gasket in the figure corresponds to the cross-sectional view AA in fig. 1. Fig. 3 is a process diagram for manufacturing a film integrated gasket according to an embodiment of the present invention, and shows a part of a cross-sectional view of the film integrated gasket and a mold.
< Fuel cell >
A fuel cell including the integrated membrane gasket according to the present embodiment will be described with reference to fig. 2. In general, a fuel cell is configured as an assembled battery including a plurality of single cells. Fig. 2 shows a cross-sectional view of a part of a battery pack including a plurality of unit cells. The cell stack is configured such that a Membrane-integrated gasket 100 integrally provided with an MEA (Membrane Electrode Assembly) 110 and a separator 200 are alternately laminated. The single cell 10 is constituted by the film integrated gasket 100 and the pair of separators 200 provided on both surfaces thereof. In fig. 2, only one single cell is shown.
The MEA 110 includes an electrolyte membrane 111 and a pair of gas diffusion layers 112 disposed on both surfaces of the electrolyte membrane 111. In the separator 200, a flow path (not shown) through which a fuel gas, an oxidizing gas, a coolant, and the like flow is formed on a surface facing the gas diffusion layer 112.
In the present embodiment, a resin film 120 that reinforces the electrolyte membrane 111 is provided integrally with the MEA 110. The resin film 120 is composed of a pair of films 121 and 122 to support both surfaces of the electrolyte membrane 111. Preferable examples of the material of the resin film 120 include resin materials such as PEN (polyethylene naphthalate) and PI (polyimide).
Further, in order to prevent leakage of the fuel gas, the oxidizing gas, the coolant, and the like, a first gasket 131 and a second gasket 132 are provided between the resin film 120 and the diaphragm 200. In the present embodiment, the first gasket 131 and the second gasket 132 are integrally provided on the resin film 120. In this way, a member in which the first gasket 131 and the second gasket 132 are integrally provided on the resin film 120 can be referred to as a "film integrated gasket". Preferable materials of the first gasket 131 and the second gasket 132 include rubber materials such as EPDM (ethylene propylene diene monomer) and VMQ (vinyl methyl silicone rubber).
< integral pad of film >
The integrated membrane gasket 100 provided in the fuel cell will be described in more detail. As described above, the film integrated gasket 100 includes the MEA 110 and the resin film 120 provided integrally with the MEA 110. Further, a plurality of manifolds 101 are provided on the resin film 120. The manifold 101 is provided to distribute the fuel gas, the oxidizing gas, the coolant, and the like to the cells.
In order to prevent the fuel gas and the like from leaking to the outside or the like, a first gasket 131 and a second gasket 132 are provided integrally with the resin film 120 around the region where the MEA 110 is provided and around the manifold 101. In fig. 1, a portion where the second pad 132 is provided is indicated by a thick line.
The first gasket 131 is provided integrally with the resin film 120 on one surface of the resin film 120. The second gasket 132 is provided integrally with the resin film 120 so as to extend along the first gasket 131 at the other surface of the resin film 120, that is, at the position on the front and back surfaces of the first gasket 131. However, depending on the structure of the battery pack, the second gasket 132 may be provided at a position on the front and rear surfaces of the entire region where the first gasket 131 is provided, or may be provided at a position on the front and rear surfaces of a partial region. The width W1 of the first gasket 131 on the side of the resin film 120 in the direction perpendicular to the extending direction of the first gasket 131 is configured to be narrower than the width W2 of the second gasket 132 on the side of the resin film 120 in the direction perpendicular to the extending direction of the second gasket 132. The center of the width W2 of the second gasket 132 is located on the front and back sides of the center of the width W1 of the first gasket 131 through the resin film 120. However, in the present invention, it is not excluded that the center of W2 is not located on the front and back sides of the center of W1 with the resin film 120 interposed therebetween. In addition, in order to improve the sealing property, the first gasket 131 in this embodiment is provided with a sealing protrusion 131a having a width narrower than the width W1 of the resin film 120 on the side contacting the separator 200. The second gasket 132 is also provided with the same seal projection 132a.
< method for producing film-integrated gasket >
A method for manufacturing the integrated film gasket 100 according to the present embodiment will be described with reference to fig. 3. In this embodiment, the method includes: an insert molding step (first step) of molding the first gasket 131 using the resin film 120 as an insert member; and an insert molding step (second step) of molding the second gasket 132 using the resin film 120 integrally provided with the first gasket 131 as an insert member.
Fig. 3 (a) shows a first process. The mold for insert molding used in the first step includes a first lower mold 310 and a first upper mold 320. A first cavity 321 for molding the first gasket 131 is provided in the first upper mold 320. The first lower mold 310 has a flat surface at least at a portion of its upper surface facing the first cavity 321 of the first upper mold 320. With the mold configured as described above, the mold is closed with the resin film 120 disposed between the first lower mold 310 and the first upper mold 320. Then, the first cavity 321 is filled with a molding material to mold the first gasket 131.
After the above first step, the mold is opened, and the resin film 120 integrally molded with the first gasket 131 is taken out.
Fig. 3 (b) shows a second process. The mold for insert molding used in the second step includes a second lower mold 330 and a second upper mold 340. A second cavity 341 for molding the second gasket 132 is provided in the second upper die 340. In addition, the second lower mold 330 is provided with a groove 331 in which the first spacer 131 is disposed. With the mold configured as described above, the mold is closed with the resin film 120 having the first gasket 131 integrally provided therebetween, disposed between the second lower mold 330 and the second upper mold 340. The mold is closed with the first gasket 131 disposed in the groove 331. After the mold is closed, the second cavity 341 is filled with a molding material to mold the second gasket 132.
After the above second step, the mold is opened, and the resin film 120 in which the first gasket 131 and the second gasket 132 are integrally molded is taken out. After that, post-treatment such as deburring is performed as necessary, and the integrated film gasket 100 can be obtained.
Here, the opening width of the first cavity 321 of the first upper mold 320 on the resin film 120 side in the direction perpendicular to the extending direction of the first cavity 321 is defined as a first opening width W32. In addition, the opening width of the second cavity 341 of the second upper die 340 on the resin film 120 side in the direction perpendicular to the extending direction of the second cavity 341 is set to a second opening width W34. In addition, the opening width of the groove 331 of the second lower die 330 on the resin film 120 side in the direction perpendicular to the extending direction of the groove 331 is set to the third opening width W33.
Thus, the first opening width W32 < the second opening width W34 is satisfied. The width W1 of the first gasket 131 molded in the first cavity 321 is substantially equal to the first opening width W32. The width W2 of the second gasket 132 molded by the second cavity 341 is substantially equal to the second opening width W34.
In the present embodiment, the second opening width W34 is set to satisfy the third opening width W33. Further, the center of the third opening width W33 is located on the front and rear surfaces of the center of the second opening width W34 via the resin film 120 (see fig. 3 (b)).
< advantages of the method for manufacturing a thin film integrated gasket according to the present embodiment >
According to the manufacturing method of the present embodiment, the first opening width W32 < the second opening width W34 is satisfied. This can narrow the groove width (third opening width W33) of the groove 331 in the second lower die 330. Therefore, it is possible to narrow the gap formed on the front and back sides of both side portions of the second cavity 341 in the second upper die 340 through the resin film 120 or eliminate such a gap. Therefore, the pressing force of the both side portions of the second cavity 341 of the second upper die 340 against the resin film 120 can be suppressed from becoming insufficient. This can suppress the occurrence of burrs and the leakage of the molding material, thereby suppressing molding defects.
In the present embodiment, since the second opening width W34 is not less than the third opening width W33, a gap can be prevented from being generated between the front and back surfaces of the second cavity 341 in the second upper die 340 through the resin film 120.
In the present embodiment, the second opening width W34 is not less than the third opening width W33, and the center of the third opening width W33 is located on the front and back sides of the center of the second opening width W34 with the resin film 120 interposed therebetween. Accordingly, even if the second opening width W34= the third opening width W33 is set, a gap is not formed between the resin film 120 and the front and back surfaces of the second cavity 341 in the second upper die 340.
In this way, by forming no gap between the resin film 120 and the front and back surfaces of the second cavity 341 in the second upper die 340, the pressing force of the portions of the second upper die 340 on the both sides of the second cavity 341 against the resin film 120 can be sufficiently increased.
(others)
In the above-described embodiment, the structure in the case where the second opening width W34 ≧ the third opening width W33 is satisfied is shown. However, if the configuration satisfies at least the first opening width W32 < the second opening width W34, the groove width (third opening width W33) of the groove 331 in the second lower die 330 can be narrowed. Therefore, compared to the case where the first opening width W32 is set to be equal to the second opening width W34, the gap formed between the resin film 120 and the front and back surfaces of the second cavity 341 in the second upper die 340 can be narrowed, and molding defects can be suppressed.
In addition, in the present embodiment, the following is shown: the center of the third opening width W33 is located on the front and back sides of the center of the second opening width W34 with the resin film 120 interposed therebetween, while the second opening width W34 is equal to or larger than the third opening width W33. When the positional relationship of the centers of the opening widths is not configured as described above, a gap can be formed between the resin film 120 and the front and back surfaces of the second upper die 340 on the side of the second cavity 341. However, if the second opening width W34 ≧ the third opening width W33 are satisfied, such a gap can be narrowed, so molding defects can be suppressed.
In the present embodiment, a case of a membrane-integrated gasket provided in a fuel cell is shown as an example of the membrane-integrated gasket. However, the membrane-integrated gasket according to the present invention is not limited to use in a fuel cell, and can be applied to various devices. The material of the film is not limited to the resin material. In particular, the present invention can be suitably applied to a method for manufacturing a film-integrated gasket made of a highly flexible film.
Description of the symbols:
10. single cell
100. Integrated thin film gasket
101. Manifold
110 MEA
111. Electrolyte membrane
112. Gas diffusion layer
120. Resin film
121. 122 film
131. First gasket
131a sealing projection
132. Second gasket
132a sealing protrusion
200. Diaphragm
310. First lower die
320. First upper die
321. First cavity
330. Second lower die
331. Trough
340. Second upper die
341. Second cavity
W32 first opening width
W33 third opening Width
W34 second opening width.

Claims (4)

1. A method for manufacturing a film-integrated gasket having a portion in which a first gasket is integrally provided on one surface of a film and a second gasket is integrally provided along the first gasket on the other surface of the film, that is, at a position on a front and back surface of the first gasket, the method comprising:
a first step of closing a first lower die and a first upper die having a first cavity for molding a first gasket, with the film disposed between the first lower die and the first upper die, and filling a molding material into the first cavity to mold the first gasket; and
a second step of closing a second lower die having a groove in which the first gasket is disposed and a second upper die having a second cavity in which the second gasket is molded, in a state in which the film in which the first gasket is integrally disposed is disposed between the second lower die and the second upper die, filling the second cavity with a molding material, and molding the second gasket,
wherein a first opening width of the film side in a direction perpendicular to an extending direction of the first cavity in the first cavity is narrower than a second opening width of the film side in a direction perpendicular to an extending direction of the second cavity in the second cavity.
2. The method of manufacturing a membrane-integrated gasket as set forth in claim 1,
the second opening width is equal to or greater than a third opening width on the film side in the direction perpendicular to the extending direction of the groove in the groove.
3. The method of manufacturing a membrane-integrated gasket of claim 2,
the center of the third opening width is located on the front and back sides of the center of the second opening width with the film interposed therebetween.
4. The method of manufacturing a thin film integrated gasket as claimed in claim 1, 2 or 3,
the membrane is a resin membrane that reinforces an electrolyte membrane provided in the fuel cell.
CN202210573452.3A 2021-06-23 2022-05-25 Method for manufacturing film integrated gasket Pending CN115513487A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021104187A JP2023003174A (en) 2021-06-23 2021-06-23 Manufacturing method of film-integrated gasket
JP2021-104187 2021-06-23

Publications (1)

Publication Number Publication Date
CN115513487A true CN115513487A (en) 2022-12-23

Family

ID=84500748

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210573452.3A Pending CN115513487A (en) 2021-06-23 2022-05-25 Method for manufacturing film integrated gasket

Country Status (2)

Country Link
JP (1) JP2023003174A (en)
CN (1) CN115513487A (en)

Also Published As

Publication number Publication date
JP2023003174A (en) 2023-01-11

Similar Documents

Publication Publication Date Title
JP4993077B2 (en) Manufacturing method of seal parts
US7276310B2 (en) Electrolyte membrane for a fuel cell, electrolyte membrane electrode assembly for a fuel cell, and a fuel cell
JP4439966B2 (en) Fuel cell electrolyte membrane structure, fuel cell electrolyte membrane-electrode assembly structure, and fuel cell
US10103364B2 (en) Base material integrated type seal and metal mold for manufacturing the same
JP5310976B2 (en) Fuel cell sealing structure
KR101908254B1 (en) Separator for fuel cells and method for producing same
US10044047B2 (en) Electrode-membrane-frame assembly, method for producing the same, and fuel cell
US9196911B2 (en) Fuel cell gas diffusion layer integrated gasket
JP2005285744A (en) Single cell structure for fuel cell stack including composite gasket
US20210273244A1 (en) Production method for separator integrated gasket for fuel cells
EP3257097B1 (en) Seal for solid polymer electrolyte fuel cell
US10854894B2 (en) Method of manufacturing plate-integrated gasket
JP5310991B2 (en) Manufacturing method of seal structure for fuel cell
JP2015170397A (en) Seal member for fuel battery, fuel battery, separator seal member junction and method of manufacturing fuel battery
JP3724797B2 (en) Fuel cell separator with seal and membrane electrode assembly with seal
CN115513487A (en) Method for manufacturing film integrated gasket
JP5979120B2 (en) Fuel cell separator, fuel cell, fuel cell manufacturing method, fuel cell stack
CN103329326A (en) Fuel cell seal
JP2005174875A (en) Fuel battery and its manufacturing method
JP2016095902A (en) Fuel battery and manufacturing method for the same
JP2006164659A (en) Fuel battery cell
US11489170B2 (en) Fuel cell separator and method of manufacturing the same
JP2013125614A (en) Fuel cell
JP5146630B2 (en) Gasket integrated with reinforcing frame and manufacturing method thereof
JP2023033807A (en) Manufacturing method of gasket

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination