CN105702987A - Fuel cell membrane electrode assembly and manufacturing method therefor - Google Patents
Fuel cell membrane electrode assembly and manufacturing method therefor Download PDFInfo
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- CN105702987A CN105702987A CN201410707711.2A CN201410707711A CN105702987A CN 105702987 A CN105702987 A CN 105702987A CN 201410707711 A CN201410707711 A CN 201410707711A CN 105702987 A CN105702987 A CN 105702987A
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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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- 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
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Abstract
The invention belongs to the technical field of a fuel cell, and specifically a new manufacturing method for a fuel cell membrane electrode assembly. According to the method, sealing pads for realizing isolation of electrodes at two sides are initially manufactured on two sides of a proton exchange membrane and the edges of catalytic layers on the two sides of the proton exchange membrane; and meanwhile, dispersion layers arranged outside the catalytic layers are connected to form the membrane electrode assembly (MEA). By adoption of the method, the MEA production cost and the manufacturing difficulty are effectively lowered, and meanwhile, the dimensional design of the MEA becomes flexible.
Description
Technical field
The invention belongs to field of fuel cell technology, specifically propose a kind of new fuel cell membrane electrode assembly manufacture method。
Background technology
Fuel cell is a kind of device that the chemical energy of hydrogen and oxygen is directly changed into electric energy by electrode reaction。Fuel cell is generally made up of multiple battery units, and each battery unit includes two electrodes (anode and negative electrode), and these two electrodes are separated by electrolyte element, and assemble with being one another in series, and forms fuel cell pack。By the reactant suitable to the supply of each electrode, i.e. another supply oxidant to an electrode supply fuel, it is achieved electrochemical reaction, thus forming potential difference in-between the electrodes, and therefore produce electric energy。
One of core component of fuel cell is membrane electrode MEA, and membrane electrode is by a PEM, film two sides two porous conductive materials of folder, as carbon paper forms。The film two boundary faces with carbon paper contain the catalyst of uniform tiny scattered initiation electrochemical reaction, such as catalyst such as metal platinum。Membrane electrode both sides can answer, by occurring electrochemistry to send out, the electronics generated in process with high connductivity object, is drawn by external circuit, constitutes current loop。
Common film electrode structure makes to be generally and is coated with Catalytic Layer in Nafion PEM both sides, and the periphery at film reserves the area of one fixed width for arranging the sealing gasket of both sides isolation, then places diffusion layer component film electrode MEA assembly in both sides。Such manufacture method not only needs to customize one by one MEA assembly according to different designs, and expends expensive PEM for sealing, is unfavorable for reducing the cost of manufacture of fuel cell articles,。And owing to the reaction zone of membrane electrode both sides just needs coating Catalytic Layer, it is necessary to reserve the edge of correct position, therefore produce and need specific frock to carry out accurate positioning, it is difficult to batch production, add the difficulty of production。
In order to solve such problem, ballard company is uniformly coated with catalyst in film both sides, then the size of reaction zone it is cut into, in its both sides compound, diffusion layer obtains MEA again, particular manufacturing craft is adopted to connect sealing reinforcement material at MEA periphery again, so owing to catalyst need not be coated with in location, Nafion membrane both sides, as long as all filling catalyst, then cutting is in needing size, therefore, it can batch production, Nafion membrane is all in reaction zone, and sealant can adopt cheap conventional seals glue, reduce cost。But owing to additionally to connect sealing reinforcement material at MEA periphery, extremely difficult, ballard company have employed the particular manufacturing craft of costliness, manufacture method is as follows: 1. by PEM both sides catalyst layer, and it is cut into the size of needs as FCM, 2. put into particular manufacturing craft inner position, particular manufacturing craft needs thoroughly to clean before use, in order to avoid pollution catalyst layer, additionally also to set suitable pressure, in order to avoid the FCM that the excessive damage of pressure is very thin, in addition it is also necessary to mould is preheated, and preheating temperature there is also the risk damaging FCM。3. adopt glue injection equipment to be melted by sealing reinforcement material, be then injected in the mould of evacuation, owing to FCM is very thin, during encapsulating, it is easy to the melted colloid punching deformation flowed, after molding, cooling is taken out in a mold。4. in both sides compound diffusion layer, and connect and fixing seal enhancement Layer and diffusion layer with one side glue, or adopt spot gluing equipment to carry out multiple pressure, it is easy to make final MEA variable thickness, during assembling, damage by pressure or loose contact。
Can be seen that, in order to reduce cost, batch production, occur in that the manufacture method of full catalyst coatings film (FCM), namely remaining for the edge coating materials sealed no longer in advance, the both sides of film are all uniformly coated with catalyst, are then cut into the size of reaction zone, in its both sides compound, diffusion layer obtains MEA again, then adopts special equipment and mould to seal reinforcement material at MEA periphery injecting glue。But owing to seal reinforcement material at MEA periphery injecting glue, it is therefore desirable to the special equipment of costliness, mould and sealing bonded adhesives etc., the much more expensive complexity of processing technology。
Summary of the invention
Fuel cell membrane electrode assembly that defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and providing a kind of can be mass, cost is low and preparation method thereof。
The purpose of the present invention can be achieved through the following technical solutions: a kind of fuel cell membrane electrode assembly includes PEM and both sides make the FCM that Catalytic Layer is constituted, then configures diffusion layer outside Catalytic Layer two, forms MEA assembly。The area of described FCM and diffusion layer can be identical or different。Described MEA assembly surrounding is along being provided with stacking sealing gasket, and this sealing gasket simultaneously constitutes structural reinforcement, namely seals enhancement Layer。Its structure composition can have different schemes, and wherein one of typical structure specifically includes that pad, the double faced adhesive tape that pad both sides are pasted, the strengthening membrane outside double faced adhesive tape。Described sticking double faced adhesive tape is at gasket surface and to extend to FCM layer both side surface bonding, described diffusion layer is adhesively fixed on FCM surface by extending to the double faced adhesive tape on FCM layer surface, simultaneously, described pad and strengthening membrane to MEA film side, and are provided with a fluid sealant plugging block each through sticking double faced adhesive tape between pad and membrane electrode。
Described spacer thickness is optional, being generally selected less than or equal to FCM same thickness, pad is arranged on MEA film side the position relative with PEM, leaves a gap between pad and PEM, filling with sealant, it is prevented that the FCM layer both sides mutual channelling of gas。
Described double faced adhesive tape covers the whole side of pad and extends to FCM layer surface, and the width of this double faced adhesive tape and FCM layer surface adhesive linkage of extending to FCM layer surface is generally no greater than 2mm, but can strengthen as required。
Described gasket material is plastics corrosion-resistant, resistant to elevated temperatures or metallic membrane, including PEN, PET and rustless steel etc., the described plastics that strengthening membrane material is high intensity or metallic membrane, including PEN, PET, FR-4, FR-5 and rustless steel etc.。
The described another kind of typical structure sealing enhancement Layer is as follows: described sealing enhancement Layer includes pad, the double faced adhesive tape that pad both sides are pasted, and the strengthening membrane outside double faced adhesive tape, described sticking double faced adhesive tape is at gasket surface and to extend to FCM layer surface bonding, described diffusion layer is adhesively fixed on FCM surface by extending to the double faced adhesive tape on FCM layer surface, meanwhile, described pad and strengthening membrane are each through sticking double faced adhesive tape to MEA side。
Described spacer thickness is identical with the thickness of described PEM, and pad is arranged on MEA film side the position relative with PEM, and described two-sided gluing is in FCM layer side, it is prevented that its both sides gas channelling。
Described double faced adhesive tape covers the whole side of pad and extends to FCM layer surface, and the width of this double faced adhesive tape and FCM layer surface adhesive linkage of extending to FCM layer surface is generally no greater than 2mm, but can strengthen as required。
PEM in described MEA is generally Nafion membrane, can also selecting the film that other performances are similar, described gasket material is resistant to elevated temperatures plastics, including PEN, PET etc., the described plastics that strengthening membrane material is high intensity, including PEN, PET, FR-4, FR-5 etc.。
The described another kind of typical structure sealing enhancement Layer is as follows: described sealing enhancement Layer includes two-layer double faced adhesive tape, and strengthening membrane, it is bonding that the one side of described two-layer double faced adhesive tape bonds and extend respectively to FCM layer both side surface mutually, another side each Self-adhesive one strengthening membrane of two-layer double faced adhesive tape。
Described two-layer double faced adhesive tape one end bonds mutually, and the other end is fitted in the both side surface of FCM layer respectively, and two-layer double faced adhesive tape forms gap, filling with sealant in this gap, it is prevented that FCM layer both sides gas channelling with FCM layer。
The width of the double faced adhesive tape and FCM layer surface adhesive linkage that extend to FCM layer surface is generally no greater than 2mm, but can strengthen as required。
PEM in described MEA is generally Nafion membrane, it is also possible to selecting the film that other performances are similar, the described plastics that strengthening membrane material is high intensity, including PEN, PET, FR-4, FR-5 etc.。
A kind of manufacture method of fuel cell membrane electrode assembly, it is characterised in that: the method comprises the following steps:
(1) uniformly it is coated with Catalytic Layer in two sides of film, is then cut into the size of needs, obtains FCM；
(2) pad identical with film thickness is set outside FCM layer edge, and at pad two sides sticking two-faced adhesive tape, it is bonding that this double faced adhesive tape extends to FCM both side surface, or does not use pad, extends to FCM both side surface bonding after directly mutually being bonded by two-layer double faced adhesive tape；
(3) pasting strengthening membrane in the another side of double faced adhesive tape, arrange diffusion layer in FCM both side surface simultaneously, diffusion layer is adhesively fixed by extending to the double faced adhesive tape of FCM surface edge zone。
When pad is set, between described pad and FCM, leave gap, filling with sealant in this gap；
When not setting pad, two-layer double faced adhesive tape one end bonds mutually, and the other end is respectively adhered on FCM both side surface, and two-layer double faced adhesive tape leaves gap with FCM's, filling with sealant in this gap。
Compared with prior art, the invention has the advantages that:
1. catalyst uniform all standing coating in the both sides of such as Nafion membrane, it is not necessary to pass through particular manufacturing craft as conventional film, it is intended that the region of size positions coating, therefore, simple to operate, can produce in batches；
2. the FCM of coating catalyst is cut into the size of needs, then double faced adhesive tape is adopted to be adhesively fixed in its both sides, at side adhesive seal reinforcement material, have only to simple frock be decided to be and can produce, simple to operation, and the material of bonding auxiliary inexpensively eliminates again the proton exchange membrane material that non-reaction zone is expensive, therefore can reduce cost significantly。The particular manufacturing craft of costliness, glue injection equipment etc. need not be put into owing to producing, while cost can be reduced, also improve product quality；
3. diffusion layer is adhesively fixed by the double faced adhesive tape pasting FCM layer surface, and operation is simple and reliable。
4. double faced adhesive tape can penetrate into and form infiltration area in diffusion layer and Catalytic Layer, while be adhesively fixed FCM and gas diffusion layers, moreover it is possible to play the effect of sealing。
The production of 5.FCM is not limited by product size, can produce by batch as web-like, also flexible and changeable when doing product design, does not need to consider the particular manufacturing craft that FCM produces, and therefore can significantly improve design and the efficiency produced。
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1 membrane electrode assembly；
Fig. 2 is the structural representation of the embodiment of the present invention 2 membrane electrode assembly；
Fig. 3 is the structural representation of the embodiment of the present invention 3 membrane electrode assembly；
Fig. 4 is the structural representation of the embodiment of the present invention 4 membrane electrode assembly；
Figure is designated: 1 is film, and 2 is Catalytic Layer, and 3 is diffusion layer, and 4 is pad, and 5 is double faced adhesive tape, and 6 is strengthening membrane, and 7 is fluid sealant, and 8 is infiltration area a, and 9 is infiltration area b。
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described。
Embodiment 1
As shown in Figure 1, a kind of fuel cell membrane electrode assembly, including the FCM being made up of the Catalytic Layer 2 of PEM 1 and both sides thereof, diffusion layer 3 is set outside Catalytic Layer and forms MEA, described PEM 1, Catalytic Layer 2 is identical with the area of diffusion layer 3 (can also be different, needs according to producing conveniently are produced in batches), described MEA side is provided with sealing enhancement Layer, described sealing enhancement Layer includes pad 4, the double faced adhesive tape 5 that pad 4 both sides are pasted, and the strengthening membrane 6 outside double faced adhesive tape 5, described double faced adhesive tape 5 is pasted onto pad 4 surface and extends to FCM layer both side surface, it is adhesively fixed with the Catalytic Layer 2 on FCM surface, double faced adhesive tape enters Catalytic Layer and forms infiltration area b9 (playing effect that is fixing and that seal), the another side of the described diffusion layer 3 double faced adhesive tape 5 by extending to FCM layer surface is adhesively fixed on FCM surface, double faced adhesive tape enters diffusion layer and forms infiltration area a8 (primarily serving fixation), simultaneously, described pad 4 and strengthening membrane 6 are each through sticking double faced adhesive tape to MEA side, the gap that can arrange fixed width degree between pad 4 and membrane electrode prevents the mutual channelling of gas of FCM layer both sides for filling with sealant 7。
Described double faced adhesive tape 5 covers the whole side of pad 4 and extends to FCM layer both side surface and be adhesively fixed, and the width of this double faced adhesive tape and FCM layer surface adhesive linkage of extending to FCM layer surface is optionally determined。It is generally no greater than 2mm。
PEM in described MEA is generally Nafion membrane, can also selecting the film that other performances are similar, described gasket material is resistant to elevated temperatures plastics, including PEN, PET etc., the described plastics that strengthening membrane material is high intensity, including PEN, PET, FR-4, FR-5 etc.。
The manufacture method of above-mentioned fuel cell membrane electrode assembly, the method comprises the following steps:
(1) uniformly it is coated with Catalytic Layer 2 in two sides of PEM 1, is then cut into the size of needs, obtains FCM；
(2) pad 4 identical with PEM 1 thickness is set outside FCM edge, and at pad 4 two sides sticking two-faced adhesive tape 5, this double faced adhesive tape 5 extends to FCM layer both side surface and is adhesively fixed；Gap is left, filling with sealant 7 in this gap between pad 4 and FCM layer；
(3) strengthening membrane 6 is pasted in the another side of double faced adhesive tape, simultaneously at FCM layer surface configuration diffusion layer 3, diffusion layer 3 is adhesively fixed by extending to the double faced adhesive tape of FCM layer surface edge zone, double faced adhesive tape 5 one side can be penetrated into and be formed infiltration area a8 in diffusion layer 3, another side can penetrate into and form infiltration area b9 (can play certain sealing effectiveness) in Catalytic Layer 2 so that it is but fixing simple firm。
Embodiment 2
As shown in Figure 2, a kind of fuel cell membrane electrode assembly, FCM is formed including by the Catalytic Layer of PEM 1 and both sides thereof, diffusion layer 3 is set outside Catalytic Layer 2 and forms MEA, described PEM 1, Catalytic Layer 2 are identical with the area of diffusion layer 3 can also be different, described PEM 1 side is provided with sealing enhancement Layer, described sealing enhancement Layer includes two-layer double faced adhesive tape 5, and strengthening membrane 6, the one side of described two-layer double faced adhesive tape 5 mutually bonds and extends respectively to FCM layer both side surface and is adhesively fixed, another side each Self-adhesive one strengthening membrane 6 of two-layer double faced adhesive tape 5。
Described two-layer double faced adhesive tape 5 one end bonds mutually, and the other end is fitted in the both side surface of FCM layer respectively and is adhesively fixed, and two-layer double faced adhesive tape forms gap, filling with sealant 7 in this gap, it is prevented that FCM both sides gas channelling with FCM。
The width of the double faced adhesive tape and FCM layer surface adhesive linkage that extend to FCM layer surface is generally no greater than 2mm, can set according to practical situation。
PEM in described MEA is generally Nafion membrane, it is also possible to selecting the film that other performances are similar, the described plastics that strengthening membrane material is high intensity, including PEN, PET, FR-4, FR-5 etc.。
The manufacture method of above-mentioned fuel cell membrane electrode assembly, the method comprises the following steps:
(1) uniformly it is coated with Catalytic Layer 2 in two sides of PEM 1, is then cut into the size of needs, obtains FCM layer；
(2) mutually being bonded two-layer double faced adhesive tape 5 one end, the other end extends to FCM layer both side surface and is adhesively fixed, and leaves gap at two-layer double faced adhesive tape 5 and FCM layer, filling with sealant 7 in this gap, it is prevented that FCM both sides gas crossfire；
(3) strengthening membrane 6 is pasted in the another side of double faced adhesive tape 5, simultaneously at FCM layer surface configuration diffusion layer 3, diffusion layer 3 is adhesively fixed by extending to the double faced adhesive tape of FCM layer surface edge zone, double faced adhesive tape 5 one side can be penetrated into and be formed infiltration area a8 in diffusion layer 3, another side can penetrate into and form infiltration area b9 (can play certain sealing effectiveness) in Catalytic Layer 2 so that it is but fixing simple firm。
Embodiment 3
As it is shown on figure 3, be not filled with fluid sealant 7 in seam crossing gap outside PEM 1, double faced adhesive tape fully penetrates into Catalytic Layer and diffusion layer, just can form adhering and sealing, the phenomenon of both sides gas channelling will not occur。All the other are with embodiment 1。
Embodiment 4
As shown in Figure 4, being not filled with fluid sealant 7 in the seam crossing gap outside PEM 1, double faced adhesive tape fully penetrates into Catalytic Layer and diffusion layer, just can form adhering and sealing, the phenomenon of both sides gas channelling will not occur。All the other are with embodiment 2。
Claims (13)
1. a fuel cell membrane electrode assembly (MEA), including the full catalysis tunic (FCM) that the Catalytic Layer of PEM and both sides thereof forms, FCM both sides Catalytic Layer arranged outside diffusion layer composition MEA, described MEA side is provided with sealing enhancement Layer, it is characterized in that: described sealing enhancement Layer includes pad, the double faced adhesive tape that pad both sides are pasted, and the strengthening membrane outside double faced adhesive tape, described sticking double faced adhesive tape is at gasket surface and extends to FCM layer surface, described diffusion layer is fixed on FCM surface by extending to the double faced adhesive tape on FCM layer surface, simultaneously, described pad and strengthening membrane are each through sticking double faced adhesive tape to MEA side, and between pad and membrane electrode, it is provided with a fluid sealant plugging block。
2. a kind of fuel cell membrane electrode assembly as claimed in claim 1, it is characterized in that: described spacer thickness is identical with the thickness of described full catalysis tunic (FCM), pad is arranged on MEA side the position relative with PEM, a gap is left between pad and PEM, filling with sealant, it is prevented that FCM layer both sides gas channelling。
3. a kind of fuel cell membrane electrode assembly as claimed in claim 1, it is characterised in that: described double faced adhesive tape covers the whole side of pad and extends to FCM layer surface。
4. a kind of fuel cell membrane electrode assembly as claimed in claim 1, it is characterized in that: described gasket material is plastics corrosion-resistant, resistant to elevated temperatures or metallic membrane, including PEN, PET or rustless steel, the described plastics that strengthening membrane material is high intensity or metallic membrane, including PEN, PET, FR-4, FR-5 or rustless steel。
5. a fuel cell membrane electrode assembly, including the FCM being made up of the Catalytic Layer of PEM and both sides thereof, diffusion layer composition MEA is set outside Catalytic Layer, described MEA side is provided with sealing enhancement Layer, it is characterized in that: described sealing enhancement Layer includes pad, the double faced adhesive tape that pad both sides are pasted, and the strengthening membrane outside double faced adhesive tape, described sticking double faced adhesive tape is at gasket surface and extends to FCM layer surface, described diffusion layer is fixed on FCM surface by extending to the double faced adhesive tape on FCM layer surface, simultaneously, described pad and strengthening membrane are each through sticking double faced adhesive tape to MEA two sides。
6. a kind of fuel cell membrane electrode assembly as claimed in claim 5, it is characterized in that: described spacer thickness is less than or equal to the thickness of described full catalysis tunic (FCM), pad is arranged on MEA side the position relative with PEM, described double faced adhesive tape is bonded in FCM two sides, it is prevented that its both sides gas channelling。
7. a kind of fuel cell membrane electrode assembly as claimed in claim 5, it is characterised in that: described double faced adhesive tape covers the whole side of pad and extends to FCM layer surface。
8. a kind of fuel cell membrane electrode assembly as claimed in claim 5, it is characterized in that: described gasket material is plastics corrosion-resistant, resistant to elevated temperatures or metallic membrane, including PEN, PET or rustless steel, the described plastics that strengthening membrane material is high intensity or metallic membrane, including PEN, PET, FR-4, FR-5 or rustless steel。
9. a fuel cell membrane electrode assembly, including the FCM being made up of the Catalytic Layer of ion exchange membrane and both sides thereof, diffusion layer composition MEA is set outside Catalytic Layer, described MEA side is provided with sealing enhancement Layer, it is characterized in that: described sealing enhancement Layer includes two-layer double faced adhesive tape, and strengthening membrane, the one side of described two-layer double faced adhesive tape bonds and extends respectively to FCM layer both side surface mutually, another side each Self-adhesive one strengthening membrane of two-layer double faced adhesive tape。
10. a kind of fuel cell membrane electrode assembly as claimed in claim 9, it is characterized in that: described two-layer double faced adhesive tape one end bonds mutually, the other end is fitted in the both side surface of FCM layer respectively, two-layer double faced adhesive tape forms gap with FCM layer, filling with sealant in this gap, it is prevented that FCM layer both sides gas channelling。
11. a kind of fuel cell membrane electrode assembly as claimed in claim 9, it is characterised in that: the described plastics that strengthening membrane material is high intensity or metallic membrane, including PEN, PET, FR-4, FR-5 or rustless steel。
12. one kind such as the manufacture method of the fuel cell membrane electrode assembly as described in arbitrary in claim 1～11, it is characterised in that: the method comprises the following steps:
(1) uniformly it is coated with Catalytic Layer in two sides of PEM, is then cut into the size of needs, obtains FCM；
(2) pad identical with proton exchange film thickness is set outside FCM edge, and at pad two sides sticking two-faced adhesive tape, this double faced adhesive tape extends to FCM layer both side surface, or is not provided with pad, extends to FCM layer both side surface after directly mutually being bonded by two-layer double faced adhesive tape；
(3) pasting strengthening membrane in the another side of double faced adhesive tape, simultaneously at FCM layer surface configuration diffusion layer, diffusion layer is adhesively fixed by extending to the double faced adhesive tape of FCM layer surface edge zone。
13. the manufacture method of fuel cell membrane electrode assembly as claimed in claim 12, it is characterised in that: when pad is set, between described pad and FCM layer, leave gap, filling with sealant in this gap；
When not setting pad, two-layer double faced adhesive tape one end bonds mutually, and the other end is respectively adhered on FCM layer both side surface, and two-layer double faced adhesive tape has gap with FCM layer, filling with sealant in this gap。
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| CN110767920B (en) * | 2019-11-02 | 2022-02-18 | 深圳市雄韬电源科技股份有限公司 | Fuel cell monomer and preparation method thereof |
| CN112909288A (en) * | 2021-01-15 | 2021-06-04 | 苏州泰仑电子材料有限公司 | Membrane electrode structure for fuel cell and preparation method |
| CN114420984A (en) * | 2021-12-22 | 2022-04-29 | 新源动力股份有限公司 | Method for manufacturing fuel cell membrane electrode assembly |
| CN117210843A (en) * | 2023-11-09 | 2023-12-12 | 北京亿华通科技股份有限公司 | Membrane electrode and preparation method thereof |
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