CN112002923A - Fuel cell module type frame membrane - Google Patents
Fuel cell module type frame membrane Download PDFInfo
- Publication number
- CN112002923A CN112002923A CN202011029935.4A CN202011029935A CN112002923A CN 112002923 A CN112002923 A CN 112002923A CN 202011029935 A CN202011029935 A CN 202011029935A CN 112002923 A CN112002923 A CN 112002923A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- cell module
- membrane
- type frame
- frame membrane
- 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.)
- Withdrawn
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 57
- 239000012528 membrane Substances 0.000 title claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000741 silica gel Substances 0.000 claims abstract description 15
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 31
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 14
- 229910052731 fluorine Inorganic materials 0.000 claims description 14
- 239000011737 fluorine Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 239000000499 gel Substances 0.000 claims description 9
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 8
- 229910000077 silane Inorganic materials 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000004642 Polyimide Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 229920001721 polyimide Polymers 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004944 Liquid Silicone Rubber Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 229920006290 polyethylene naphthalate film Polymers 0.000 claims description 2
- 239000002253 acid Substances 0.000 abstract description 11
- 229920001971 elastomer Polymers 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 210000004027 cell Anatomy 0.000 description 34
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 210000000170 cell membrane Anatomy 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229920003049 isoprene rubber Polymers 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- -1 Polydimethylsiloxane Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- 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
- H01M8/0276—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
- H01M8/10—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
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- 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
The invention discloses a fuel cell module type frame membrane, comprising: a frame membrane disposed at non-electrode portions on both sides of a membrane electrode assembly of the fuel cell; and the bipolar plate sealing gasket is arranged on the frame membrane and is used for connecting the frame membrane and the current collector of the fuel cell. According to the invention, the modified liquid silica gel with good air tightness and acid resistance is coated or injected on the frame film, so that the traditional sealing gasket for the bipolar plate made of rubber is replaced, the air tightness and the acid resistance are ensured, meanwhile, the problem that the rubber material is easy to bend and is not easy to realize automatic mass production is solved, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a fuel cell module type frame membrane.
Background
The polymer electrolyte fuel cell has a Membrane-Electrode Assembly (MEA) in the middle, and the Membrane-Electrode Assembly has a structure of 3 layers of "Anode-proton exchange Membrane-Cathode" (Anode-Membrane-Cathode), so it is called "3 layer" or "MEA 3", and after a frame Membrane is added to the outer sides of the electrodes, it is called "5 layer" or "MEA 5".
The "5 layer" or "MEA 5" configured as described above is joined to a Gasket (gasset) for a Bipolar Plate (BP), and when fuel is supplied to a central position where an oxidation/reduction reaction occurs and water generated by the reaction is discharged, the side surface of the MEA seal (Sealing) functions to prevent leakage of fuel gas and water.
Gaskets for BP used in fuel cell stacks (stacks) are required to have excellent elasticity and low Compression set (Compression set) under hardness conditions in an appropriate range, and to satisfy the requirements of non-deformation, acid resistance, hydrolysis resistance, gas permeation resistance, processability for production efficiency, and low-cost materials satisfying the above-mentioned properties in an environment where pH2 is acidic when a fuel cell is driven.
In general, many of the constituent materials of gaskets for BP of fuel cells are fluorine-based, silicon-based, and hydrocarbon-based.
The gaskets for fluorine-based BPs have a molecular structure to which fluorine (Fluoride) is bonded, are excellent in elasticity, acid resistance and heat resistance, and are widely used in the initial stage of development because they can maintain excellent durability even after long-term use under driving conditions of hydrogen fuel cell vehicles. However, the injection molding method has a limited use because of its low productivity, poor cold resistance and high material price. In order to improve the cold resistance of the gaskets for fluorine-based BPs, materials have been developed which can ensure the air-tight property even at-30 ℃ after being bridged with a Peroxide (Peroxide). However, most of the manufacturing companies do not use the gaskets for fluorine-based BP because of the disadvantage of higher price and the inability to maintain the airtight property even in an environment of-40 ℃ or lower.
Gasket for carbonizing water-based BP mostly uses Ethylene Propylene Diene Monomer (EPDM), Ethylene Propylene Rubber (EPR), Isoprene Rubber (IR), etc., and has excellent cold resistance of about-40 ℃, but when exposed to high temperature of 100 ℃ or higher for a long time, the elasticity and oxidation resistance are reduced, thereby causing a problem of electric leakage.
In gaskets for silicon-based BP, general-type and expensive modified silicon containing fluorine such as Polydimethylsiloxane (PDMS) are easy to ensure mechanical and chemical properties, but Liquid silica gel (LSR) is used for processability. Such silicone rubber has advantages such as excellent processability and heat resistance, and also has a wide range of temperature conditions for use, and therefore, has been used many times in the early stage of development of hydrogen fuel cell stacks. However, the catalyst has the disadvantage of weak acid resistance, and silicon fragments can be aged and dropped after being exposed for a long time under an acidic condition to contaminate a catalytic surface similar to platinum, thereby finally reducing the efficiency of the fuel cell. Therefore, in order to use LSR, denatured silicon for improving acid resistance is required.
Further, although the lamination process of the fuel cell stack is performed by fixedly laminating a rubber in a belt or O-ring state, which is manufactured in advance by injection molding, on a BP, the gaskets for the BP have a material composition that is rubber-like and easily bent, and thus, the lamination process is not easily performed in an automated process to reduce the production efficiency and increase the manufacturing cost.
Disclosure of Invention
According to an embodiment of the present invention, there is provided a fuel cell module type frame membrane including:
a frame membrane disposed at non-electrode portions on both sides of a membrane electrode assembly of the fuel cell;
and the bipolar plate sealing gasket is arranged on the frame membrane and is used for connecting the frame membrane and the current collector of the fuel cell.
Furthermore, the bipolar plate sealing gasket is formed by coating or injection molding modified liquid silica gel mixed with fluorine-containing silane on the frame membrane and then hardening.
Further, the denatured liquid silica gel contains: a single liquid silica gel, or at least two liquid silica gels; the hardness range of the modified liquid silica gel is 30-70 hardness (ASTM D2240, Shore A hardness).
Further, the weight ratio of the fluorine-containing silane to the denatured liquid silica gel is not more than 1: 100.
Furthermore, the thickness range of the bipolar plate sealing gasket is 50-500 mu m.
Further, the frame film includes: the fuel cell comprises an adhesion layer and a substrate layer which are arranged in a laminated mode, wherein the adhesion layer is arranged between the non-electrode parts on two sides of a membrane electrode assembly of the fuel cell and the substrate layer.
Further, the adhesive layer contains a thermosetting resin.
Furthermore, the thickness of the adhesive layer is 5 μm to 100 μm.
Further, the substrate layer is a polyimide or polyethylene naphthalate film material.
Further, the thickness range of the substrate layer is 10-70 μm.
According to the fuel cell module type frame membrane provided by the embodiment of the invention, the modified liquid silica gel with good air tightness and acid resistance is coated or injected on the frame membrane, so that the traditional sealing gasket for the bipolar plate made of rubber is replaced, the air tightness and the acid resistance are ensured, the problem that the rubber material is easy to bend and is not easy to automatically produce in a large scale is solved, and the cost is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.
Drawings
Fig. 1 is an exploded perspective view of a fuel cell module-type border membrane applied to a membrane electrode assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a fuel cell membrane electrode assembly;
fig. 3 is a schematic structural view of a membrane electrode assembly to which a fuel cell module type frame membrane according to an embodiment of the present invention is applied;
fig. 4 is a schematic view showing the structure of a frame membrane of a fuel cell module type frame membrane according to an embodiment of the present invention.
Detailed Description
The present invention will be further explained by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings.
First, a fuel cell module type frame membrane according to an embodiment of the present invention will be described with reference to fig. 1 to 4, which is used for a fuel cell membrane electrode assembly 3, as shown in fig. 2, the fuel cell membrane electrode assembly 3 has an anode 31, a proton exchange membrane 32, and a cathode 33, which are sequentially stacked, and the application scenarios thereof are wide.
As shown in fig. 1, a fuel cell module type frame membrane according to an embodiment of the present invention has a frame membrane 1 and a bipolar plate gasket 2.
Specifically, as shown in fig. 1, 3, and 4, a frame film 1 is provided at a non-electrode portion on both sides of a membrane electrode assembly 3, the frame film 1 having: the adhesive layer 11 and the base material layer 12 are stacked, and the adhesive layer 11 is provided between the non-electrode portions on both sides of the membrane electrode assembly 3 of the fuel cell and the base material layer 12.
Further, in the present embodiment, the adhesive layer 11 includes a thermosetting resin, and the thickness of the adhesive layer 11 is in a range of 5 μm to 100 μm, and preferably, the thickness of the adhesive layer 11 is in a range of 10 μm to 50 μm. If the thickness of the adhesion layer 11 is less than 5 μm, the proton exchange membrane 31 and the substrate layer 12 cannot be normally sealed, and leakage occurs; if the thickness exceeds 100 μm, the adhesive 11 may leak out during the process of adhering the proton exchange membrane 31 and the base material layer 12.
Further, in the present embodiment, the substrate layer 12 is a Polyimide (PI) or polyethylene naphthalate (PEN) film having excellent mechanical and chemical properties, the thickness of the substrate layer 12 is 10 μm to 70 μm, and if the thickness of the substrate layer 12 is less than 10 μm, the gas diffusion layer of the fuel cell is compressed when the fuel cell is associated, so that fuel cannot be supplied, and the performance of the fuel cell is reduced; on the other hand, if the thickness of the base material layer 12 is greater than 70 μm, the resistance with the current collector 4 increases due to the gas diffusion layer floating between the current collectors 4 of the fuel cell, and the performance of the fuel cell also decreases.
Specifically, as shown in fig. 1, a bipolar plate gasket 2 is provided on the frame membrane 1 for connecting the frame membrane 1 with a current collector 4 of the fuel cell.
Furthermore, the bipolar plate sealing gasket 2 is formed by coating or injecting modified liquid silica gel mixed with fluorine-containing silane on the frame membrane 1 and then hardening, replaces the traditional sealing gasket for the bipolar plate made of rubber, is not easy to bend and modify, and can realize automatic mass production. In this example, the denatured liquid silica gel contained: a single liquid silica gel, or at least two liquid silica gels; the hardness range of the modified liquid silica gel is 30-70 hardness (ASTM D2240, Shore A hardness). In general, a fuel cell stack is composed of several hundreds of membrane electrode assemblies and bipolar plates, and in order to maintain airtightness through uniform contact surfaces between the components, it is necessary to adjust a suitable hardness, and if the hardness of denatured liquid silica gel coated on the frame membrane 1 exceeds 70, airtightness stability is not easily ensured due to too hard, and if the hardness is less than 30, airtightness of the latter part of the associated stack is reduced due to too low crosslinking density, reduction in elasticity, and increase in compression set, thereby causing leakage.
Further, since the modified liquid silicone gel mixed with the fluorine-containing silane needs to be dried and hardened after being coated on the frame film 1, but the material properties of the base material layer 12 and the modified liquid silicone gel after being hardened are different, and an interface separation, that is, the bipolar plate gasket 2 is separated from the base material layer 12, in this embodiment, before the modified liquid silicone gel is coated, a primer is coated on the base material layer 12 by using a comma coater to perform a surface treatment in order to improve the interface separation phenomenon.
Further, in the present embodiment, the thickness range of the bipolar plate gasket 2 is 50 μm to 500 μm, and if the thickness of the bipolar plate gasket 2 is less than 50 μm, a thickness difference occurs in the current collector or the frame membrane 1, or a part of the current collector or the frame membrane reaches a suppression critical point due to uneven association pressure of the fuel cell stack, so that leakage may occur; whereas if the bipolar plate gasket 2 has a thickness of more than 500 μm, the gas diffusion layer in the central portion of the mea3 cannot be attached to the surface of the current collector, resulting in a decrease in the performance of the fuel cell stack.
Further, in this embodiment, the weight ratio of the fluorine-containing silane to the denatured liquid silicone gel is not more than 1:100, which can ensure the acid resistance of the fuel cell module type frame membrane of the embodiment of the present invention, and if the content of the fluorine-containing silane is relatively high, the basic physical properties of the liquid silicone gel will change, and the sealing effect will be greatly reduced.
In the above, referring to fig. 1 to 4, a fuel cell module type frame film according to an embodiment of the present invention is described, in which modified liquid silicone rubber having good air tightness and acid resistance is coated or injected on the frame film, so as to replace a conventional sealing gasket for a rubber bipolar plate, thereby ensuring the air tightness and acid resistance, solving the problem that the rubber material is easy to bend and is not easy to be produced in an automated scale, and reducing the cost.
It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A fuel cell module type frame membrane, comprising:
a frame membrane disposed at non-electrode portions on both sides of a membrane electrode assembly of the fuel cell;
and the bipolar plate sealing gasket is arranged on the frame membrane and is used for connecting the frame membrane with a current collector of the fuel cell.
2. The fuel cell module-type frame membrane according to claim 1, wherein the bipolar plate gasket is formed by coating or injection-molding a denatured liquid silicone rubber mixed with fluorine-containing silane on the frame membrane and then hardening.
3. The fuel cell module-type frame membrane according to claim 2, wherein the denatured liquid silicone rubber contains: a single liquid silica gel, or at least two liquid silica gels; the hardness range of the denatured liquid silica gel is 30-70 hardness (ASTM D2240, Shore A hardness).
4. The fuel cell module-type frame membrane according to claim 2, wherein a weight ratio of the fluorine-containing silane to the denatured liquid silicone gel is not more than 1: 100.
5. The fuel cell module type frame membrane according to claim 1 or 2, wherein the bipolar plate gasket has a thickness in a range of 50 μm to 500 μm.
6. The fuel cell module-type frame membrane according to claim 1, wherein the frame membrane comprises: the fuel cell comprises an adhesion layer and a substrate layer which are arranged in a laminated mode, wherein the adhesion layer is arranged between the non-electrode parts on two sides of a membrane electrode assembly of the fuel cell and the substrate layer.
7. The fuel cell module type frame film according to claim 6, wherein the adhesive layer contains a thermosetting resin.
8. The fuel cell module type frame film according to claim 6 or 7, wherein the adhesive layer has a thickness in a range of 5 μm to 100 μm.
9. The fuel cell module-type frame film according to claim 6, wherein the base material layer is a polyimide or polyethylene naphthalate film.
10. The fuel cell module type frame film according to claim 6 or 9, wherein the thickness of the base material layer is in a range of 10 μm to 70 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011029935.4A CN112002923A (en) | 2020-09-27 | 2020-09-27 | Fuel cell module type frame membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011029935.4A CN112002923A (en) | 2020-09-27 | 2020-09-27 | Fuel cell module type frame membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112002923A true CN112002923A (en) | 2020-11-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011029935.4A Withdrawn CN112002923A (en) | 2020-09-27 | 2020-09-27 | Fuel cell module type frame membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112002923A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909280A (en) * | 2020-12-31 | 2021-06-04 | 大连融科储能技术发展有限公司 | Method for insulating surface edge of bipolar plate and application thereof |
| DE102021113960A1 (en) | 2021-05-31 | 2022-12-01 | Audi Aktiengesellschaft | Fuel cell with elastomer layers and method for manufacturing a fuel cell |
-
2020
- 2020-09-27 CN CN202011029935.4A patent/CN112002923A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909280A (en) * | 2020-12-31 | 2021-06-04 | 大连融科储能技术发展有限公司 | Method for insulating surface edge of bipolar plate and application thereof |
| CN112909280B (en) * | 2020-12-31 | 2022-02-11 | 大连融科储能技术发展有限公司 | Method for insulating surface edge of bipolar plate and application thereof |
| DE102021113960A1 (en) | 2021-05-31 | 2022-12-01 | Audi Aktiengesellschaft | Fuel cell with elastomer layers and method for manufacturing a fuel cell |
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Application publication date: 20201127 |