CN112310433A - Sealing structure of fuel cell and assembly method of fuel cell stack - Google Patents
Sealing structure of fuel cell and assembly method of fuel cell stack Download PDFInfo
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- CN112310433A CN112310433A CN202011363517.9A CN202011363517A CN112310433A CN 112310433 A CN112310433 A CN 112310433A CN 202011363517 A CN202011363517 A CN 202011363517A CN 112310433 A CN112310433 A CN 112310433A
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- 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
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- 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
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- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2404—Processes or apparatus for grouping 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
- 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
Abstract
The invention discloses a sealing structure of a fuel cell and an assembly method of a fuel cell stack, wherein the sealing structure comprises the following components: the device comprises a polar plate, a membrane electrode, a polar plate sealing washer and a coolant sealing washer; the edge of the polar plate is provided with a sealing rib, and a polar plate sealing groove is formed between the two rows of sealing ribs; the polar plate sealing washer is arranged in the polar plate sealing groove; the polar plate sealing washer is provided with a polar plate sealing washer glue line groove, glue is applied to the glue line groove, and the polar plate sealing washer is bonded with the polar plate; the side of the polar plate sealing washer facing the membrane electrode is provided with two protrusions contacted with the membrane electrode; the cooling liquid sealing gasket is arranged between the adjacent polar plates of the two single batteries; the two sides of the cooling liquid sealing gasket are in a club shape and are matched with the sealing ribs; the cooling liquid sealing gasket is provided with 2 cooling liquid sealing gasket rubber line grooves, the cooling liquid sealing gasket rubber line grooves are respectively arranged on the contact surfaces of the cooling liquid sealing gasket and the adjacent polar plates, and the cooling liquid sealing gasket is bonded with the polar plates by applying glue into the cooling liquid sealing gasket rubber line grooves.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a sealing structure of a fuel cell and an assembly method of a fuel cell stack.
Background
The proton exchange membrane fuel cell is a novel power generation device which can directly convert chemical energy of fuel into electric energy at room temperature in an electrochemical mode, has the advantages of high energy conversion rate, no pollution, rich raw material sources and the like, and is called as a fourth generation power generation technology following water power, firepower and nuclear energy. As a new generation of power generation technology, the fuel cell can be widely applied to various aspects such as portable mobile power sources, electric automobiles, power stations, aerospace, military ships and the like.
The proton exchange membrane fuel cell mainly comprises a membrane electrode and a polar plate. A Membrane Electrode Assembly (MEA) is an internal core component of a proton exchange Membrane fuel cell. The Membrane Electrode (MEA) consists of a proton exchange membrane sandwiched between two porous, electrically conductive materials, such as carbon paper. The membrane contains a uniform and finely dispersed catalyst, such as a platinum metal catalyst, for initiating an electrochemical reaction at the interface between the membrane and the carbon paper. The electrons generated in the electrochemical reaction process can be led out by conductive objects at two sides of the membrane electrode through an external circuit to form a current loop. The fuel cell may have a stack structure, and is generally constructed by stacking unit fuel cells into a stack.
The common fuel of the proton exchange membrane fuel cell is hydrogen, and the common oxidant is oxygen or air, etc., if the sealing effect of the fuel cell is not good, the fuel and the oxidant are directly mixed, and explosion is easily caused. Therefore, the design of a sealing structure in the field of fuel cells is very necessary. In the prior art, a fuel cell generally has two sealing modes, one is to seal a glue line or a sealing gasket on an anode plate and a cathode plate of a bipolar plate of the fuel cell, and the sealing is directly formed on the surface of the polar plate by the assembling pressure during the assembling; the method has the advantages of simple structure and easy operation, and has the defects that the sealing rubber wire and the sealing washer are easy to slide and dislocate in the assembling process and the later use process, thereby influencing the air tightness of the galvanic pile; the other mode is that liquid silica gel is used for forming an elastic sealing layer on the surface of the pole plate in an injection molding mode, and then the pole plate is sealed through assembly pressure in the assembly process. The two existing process technologies have the following defects: the sealing rubber wire is generally rectangular in structure, and the sealing ring can be compressed to the designed compression amount only by using a large packaging force, so that the fuel cell end plate can deform under the long-term use condition, and the sealing rubber wire is not suitable for future commercial large-scale production application of the fuel cell. Meanwhile, the rectangular sealing ring on the water side is fixed on the reverse side of the groove of the polar plate, and the plane of the sealing ring is easy to be dislocated in the assembling process to influence the sealing effect. Therefore, the design of a structure suitable for the polar plate sealing groove and the sealing ring plays a crucial role in reducing the assembly pressure of the galvanic pile and sealing the galvanic pile.
Disclosure of Invention
The invention aims to provide a sealing structure of a fuel cell and an assembly method thereof, and the sealing structure can solve the problems of sliding dislocation of a sealing gasket in the assembly or later use process and higher assembly pressure of a traditional rectangular sealing ring.
In order to achieve the above object, the present invention provides a sealing structure of a fuel cell, wherein the fuel cell is a stacked body formed by stacking a plurality of single cells, and each single cell comprises two polar plates and a membrane electrode arranged between the two polar plates; the seal structure includes: the device comprises a polar plate, a membrane electrode, a polar plate sealing washer and a coolant sealing washer; the edge of the polar plate is provided with a sealing rib, and the sealing rib is a groove formed by the edge of the polar plate being recessed towards one side of the membrane electrode; a polar plate sealing groove is formed between the two rows of sealing ribs; the polar plate sealing washer is arranged in the polar plate sealing groove; a polar plate sealing washer glue line groove is formed in one surface, in contact with the polar plate, of the polar plate sealing washer, and the polar plate sealing washer is bonded with the polar plate by applying glue into the polar plate sealing washer glue line groove; the side of the polar plate sealing washer facing the membrane electrode is provided with two protrusions which are contacted with the membrane electrode; the cooling liquid sealing gasket is arranged between the adjacent polar plates of the two single batteries; the two sides of the cooling liquid sealing gasket are in a club shape and are matched with the sealing ribs; the coolant liquid sealing washer has 2 coolant liquid sealing washer rubber-covered wire grooves, coolant liquid sealing washer rubber-covered wire grooves are located respectively the coolant liquid sealing washer with on the face of adjacent polar plate contact, through to glue in the coolant liquid sealing washer rubber-covered wire groove, will the coolant liquid sealing washer with the polar plate bonds.
Preferably, the sealing rib is rectangular.
Preferably, the polar plate is a metal polar plate.
Preferably, the height of the protrusion accounts for 10% -40% of the total thickness of the plate sealing washer.
Preferably, the polar plate comprises an anode plate and a cathode plate; the sealing ribs comprise anode plate sealing ribs and cathode plate sealing ribs; the polar plate sealing groove comprises an anode plate sealing groove and a cathode plate sealing groove; the polar plate sealing washer comprises an anode sealing washer and a cathode sealing washer; the polar plate sealing gasket rubber groove comprises an anode sealing gasket rubber groove and a cathode sealing gasket rubber groove; the edge of the anode plate is provided with an anode plate sealing rib, and the anode plate sealing rib is a groove formed by the edge of the anode plate being recessed towards one side of the membrane electrode; an anode plate sealing groove is formed between the two rows of anode plate sealing ribs; the anode sealing washer is arranged in the anode plate sealing groove; an anode sealing gasket glue slot is formed in one surface, which is in contact with the anode plate, of the anode sealing gasket, and the anode sealing gasket is bonded with the anode plate by gluing in the anode sealing gasket glue slot; the edge of the cathode plate is provided with a cathode plate sealing rib, and the cathode plate sealing rib is a groove formed by the edge of the cathode plate being recessed towards one side of the membrane electrode; a cathode plate sealing groove is formed between the two rows of the cathode plate sealing ribs; the cathode sealing washer is arranged in the cathode plate sealing groove; and a cathode sealing gasket glue line groove is formed in one surface, which is in contact with the cathode plate, of the cathode sealing gasket, and the cathode sealing gasket is bonded with the cathode plate by applying glue into the cathode sealing gasket glue line groove.
Preferably, the height of the anode plate sealing rib and the height of the cathode plate sealing rib are both 0.2-0.4 mm; the thickness of the anode sealing washer and the thickness of the cathode sealing washer are both 0.4-0.6 mm; the height of the protrusion is 0.1-0.2 mm.
Preferably, the glue line groove of the anode sealing gasket is arranged in the middle of the anode sealing gasket, the depth is 0.1-0.15mm, and the width is 0.3-0.7 mm; the cathode sealing gasket glue line groove is arranged in the middle of the cathode sealing gasket, the depth is 0.1-0.15mm, and the width is 0.3-0.7 mm.
Preferably, the 2 cooling liquid sealing gasket rubber wire grooves are symmetrically arranged in the middle of the cooling liquid sealing gasket.
Preferably, the thickness of the cooling liquid sealing gasket is 0.5-0.8 mm; the depth of the cooling liquid sealing gasket rubber line groove is 0.1-0.15mm, and the width of the cooling liquid sealing gasket rubber line groove is 0.3-0.7 mm; the thickness of the two sides of the cooling liquid sealing gasket in the shape of a stick is 0.85-1.20 mm.
The invention also provides an assembly method of the fuel cell stack, and the fuel cell stack comprises the sealing structure of the fuel cell; the method comprises the following steps: and sequentially stacking the anode plate provided with the anode sealing washer, the membrane electrode, the cathode plate provided with the cathode sealing washer and the coolant sealing washer bonded to the cathode plate to form a single battery, then applying glue to a glue line groove of the coolant sealing washer, and bonding the coolant sealing washer with the anode plate of the adjacent single battery.
Compared with the prior art, the invention has the beneficial effects that:
1. two rows of sealing ribs are arranged at the edges of the cathode plate and the anode plate, a sealing groove is formed between the sealing ribs, and a sealing gasket is assembled in the sealing groove.
2. The structure on the two sides of the cooling liquid sealing gasket is in a club shape, and the structure can be embedded into the sealing ribs of the cathode plate and the anode plate, so that the cooling liquid sealing gasket can be fixed between the cathode plate and the anode plate, the slippage of the cooling liquid sealing gasket on the sealing gaskets of the cathode plate and the anode plate is reduced, and the sealing service life of a cooling liquid cavity of the fuel cell stack is prolonged.
3. Through set up seal ring rubber-covered wire groove in anode seal ring, cathode seal ring, coolant liquid seal ring, can glue in the rubber-covered wire groove with anode seal ring, cathode seal ring, coolant liquid seal ring firm bonding at negative plate, anode plate surface, further reduce the possibility that seal ring slided in the use, improve the sealing performance of pile.
4. The protruding structures accounting for 10% -40% of the total thickness are arranged on the base platforms of the anode sealing washer and the cathode sealing washer, so that the protruding structures can be compressed to improve the compression rate of the sealing washers in the assembling process, and meanwhile, the assembling pressure is reduced compared with the rectangular section sealing washers, and the load of the end plate is further reduced.
5. Compared with a sealing gasket prepared by an injection molding process, the anode sealing gasket, the cathode sealing gasket and the coolant sealing gasket can be prepared by an extrusion mode, so that the mold has the advantage of low manufacturing cost, and the cost for sealing the fuel cell polar plate can be reduced.
Drawings
Fig. 1 is a schematic structural view of a sealing structure of a fuel cell of the present invention.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
The fuel cell adopted by the invention is a laminated body formed by laminating a plurality of single cells, and each single cell comprises two polar plates and a membrane electrode arranged between the two polar plates. The sealing structure of the present invention includes: polar plate, membrane electrode, polar plate sealing washer, coolant liquid sealing washer 6.
As shown in fig. 1, the electrode plate includes an anode plate 1 and a cathode plate 2; the plate seal gasket comprises an anode seal gasket 4 and a cathode seal gasket 5. The anode plate 1 and the cathode plate 2 are symmetrically arranged.
The edge of the anode plate 1 is provided with an anode plate sealing rib 7, and the anode plate sealing rib 7 is a groove formed by the edge of the anode plate 1 concaved towards one side of the membrane electrode 3. An anode plate sealing groove is formed between the two rows of anode plate sealing ribs 7, and an anode sealing washer 4 is arranged in the anode plate sealing groove. An anode sealing gasket glue groove 9 is arranged on one surface of the anode sealing gasket 4, which is in contact with the anode plate 1, and the anode sealing gasket 4 is bonded with the anode plate 1 by applying glue into the anode sealing gasket glue groove 9.
The edge of the cathode plate 2 is provided with a cathode plate sealing rib 8, and the cathode plate sealing rib 8 is a groove formed by the edge of the cathode plate 2 concaved towards one side of the membrane electrode 3. A cathode plate sealing groove is formed between the two rows of cathode plate sealing ribs 8, and a cathode sealing washer 5 is arranged in the cathode plate sealing groove. The cathode sealing washer 5 is provided with a cathode sealing washer glue line groove 10 on one surface contacting with the cathode plate 2, and the cathode sealing washer 5 is bonded with the cathode plate 2 by applying glue into the cathode sealing washer glue line groove 10.
A coolant seal gasket 6 is provided between the cathode plate 2 of the first cell and the anode plate 1 of the next cell. The two sides of the cooling liquid sealing gasket 6 are in a stick shape and are embedded into the cathode plate sealing rib 8 of the cathode plate 2 of the first single battery and the anode plate sealing rib 7 of the anode plate 1 of the next single battery. And the surfaces of the cooling liquid sealing gaskets 6, which are contacted with the two adjacent polar plates, are provided with cooling liquid sealing gasket rubber wire grooves 11. In the embodiment shown in fig. 1, 2 coolant sealing gasket glue line grooves 11 are symmetrically arranged in the middle of the coolant sealing gasket.
The assembly method of the fuel cell stack comprises the following steps: firstly, an anode plate 1 provided with an anode sealing washer 4, a membrane electrode 3, a cathode plate 2 provided with a cathode sealing washer 5 and a cooling liquid sealing washer 6 adhered to the cathode plate 2 are sequentially stacked to form a battery monomer. And laminating the battery cells, and gluing the coolant sealing gasket 6 to the anode plate 1 of the next battery cell by gluing the coolant sealing gasket in the glue slot 11.
The anode plate sealing rib 7 and the cathode plate sealing rib 8 can respectively play a role in blocking the anode sealing washer 4 and the cathode sealing washer 5, so that the sealing washers are prevented from sliding.
The structure of the two sides of the cooling liquid sealing gasket 6 is in a club shape, the structure can be embedded into the sealing ribs of the cathode plate and the anode plate, the cooling liquid sealing gasket 6 can be fixed between the cathode plate and the anode plate, and the sliding of the cooling liquid sealing gasket 6 on the sealing gaskets of the cathode plate and the anode plate is reduced.
Through setting up seal ring rubber-covered wire groove in anode sealing washer 4, cathode seal ring 5, coolant sealing washer 6, can glue in the rubber-covered wire groove and firmly bond anode sealing washer 4, cathode sealing washer 5, coolant sealing washer 6 on negative plate 2, anode plate 1 surface, further reduce the possibility that seal ring slided in the use.
Two bulges on the polar plate sealing washer are compressed in the assembling process, and compared with the sealing washer with the rectangular section, the assembling pressure can be reduced, so that the load of the end plate is reduced.
In some embodiments, the sealing rib is rectangular. The sealing washer is stably limited in the sealing groove by the rectangular protruding sealing ribs, and the two sides of the cooling liquid sealing washer 6 are easily limited.
In some embodiments, the anode sealing gasket 4, the cathode sealing gasket 5 and the coolant sealing gasket 6 are prepared by extrusion, compared with the sealing gasket prepared by injection molding, the gasket has the advantage of low cost of the mold, and the cost of sealing the fuel cell plate can be reduced.
The anode plate 1 and the cathode plate 2 are made of metal plates, and have the advantages of low cost, high strength and easiness in forming.
In the embodiment shown in fig. 1, the height of the anode plate sealing rib 7 and the height of the cathode plate sealing rib 8 are both 0.2-0.4 mm. The thickness of the anode sealing washer 4 and the cathode sealing washer 5 is 0.4-0.6 mm; the height of the protrusion is 0.1-0.2mm, and the height of the protrusion accounts for 10-40% of the total thickness of the plate sealing washer.
The anode sealing gasket glue line groove 9 is arranged in the middle of the anode sealing gasket 4, the depth is 0.1-0.15mm, and the width is 0.3-0.7 mm. The cathode sealing gasket rubber groove 10 is arranged in the middle of the cathode sealing gasket 5, the depth is 0.1-0.15mm, and the width is 0.3-0.7 mm.
The 2 cooling liquid sealing gasket rubber wire grooves 11 are symmetrically arranged in the middle of the cooling liquid sealing gasket 6. The thickness of the cooling liquid sealing gasket 6 is 0.5-0.8 mm; the depth of the cooling liquid sealing gasket rubber line groove 11 is 0.1-0.15mm, and the width is 0.3-0.7 mm; the thickness of the two sides of the cooling liquid sealing gasket 6 in the shape of a stick is 0.85-1.20 mm.
In conclusion, the sealing structure of the invention can solve the problem of sliding dislocation of the sealing washer in the assembling or later use process, and simultaneously, the raised structure is added on the sealing washer, and the two sides of the cooling liquid sealing washer are matched with the sealing ribs of the polar plate, thereby not only solving the problem of larger assembling pressure of the traditional rectangular sealing washer, but also reducing the cost of a mould for preparing the sealing washer, and further reducing the process cost of polar plate sealing.
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. The sealing structure of the fuel cell is characterized in that the fuel cell is a laminated body formed by laminating a plurality of single cells, and each single cell comprises two polar plates and a membrane electrode (3) arranged between the two polar plates; the seal structure includes: the device comprises a polar plate, a membrane electrode (3), a polar plate sealing washer and a coolant sealing washer (6); wherein the content of the first and second substances,
the edge of the polar plate is provided with a sealing rib which is a groove formed by the edge of the polar plate being recessed towards one side of the membrane electrode;
a polar plate sealing groove is formed between the two rows of sealing ribs; the polar plate sealing washer is arranged in the polar plate sealing groove; a polar plate sealing washer glue line groove is formed in one surface, in contact with the polar plate, of the polar plate sealing washer, and the polar plate sealing washer is bonded with the polar plate by applying glue into the polar plate sealing washer glue line groove; the plate sealing gasket has two protrusions contacting the membrane electrode (3) on the side facing the membrane electrode (3);
the cooling liquid sealing gasket (6) is arranged between the adjacent polar plates of the two single batteries; the two sides of the cooling liquid sealing gasket are in a club shape and are matched with the sealing ribs; coolant liquid sealing washer (6) have 2 coolant liquid sealing washer rubber-insulated wire casing (11), coolant liquid sealing washer rubber-insulated wire casing (11) are located respectively coolant liquid sealing washer (6) with on the face of adjacent polar plate contact, through to glue in coolant liquid sealing washer rubber-insulated wire casing (11), will coolant liquid sealing washer (6) with the polar plate bonds.
2. A seal structure of a fuel cell according to claim 1, wherein said seal rib has a rectangular shape.
3. A seal structure of a fuel cell according to claim 1, wherein said plate is a metal plate.
4. A seal structure of a fuel cell according to claim 1, wherein the height of the protrusions accounts for 10 to 40% of the total thickness of the plate seal gasket.
5. The seal structure of a fuel cell according to claim 1, wherein said electrode plate comprises an anode plate (1) and a cathode plate (2); the sealing ribs comprise anode plate sealing ribs (7) and cathode plate sealing ribs (8); the polar plate sealing groove comprises an anode plate sealing groove and a cathode plate sealing groove; the polar plate sealing washer comprises an anode sealing washer (4) and a cathode sealing washer (5); the polar plate sealing gasket rubber groove comprises an anode sealing gasket rubber groove (9) and a cathode sealing gasket rubber groove (10); wherein the content of the first and second substances,
the edge of the anode plate (1) is provided with an anode plate sealing rib (7), and the anode plate sealing rib (7) is a groove formed by the edge of the anode plate (1) being recessed towards one side of the membrane electrode (3); an anode plate sealing groove is formed between the two rows of anode plate sealing ribs (7); the anode sealing washer (4) is arranged in the anode plate sealing groove; an anode sealing gasket glue line groove (9) is formed in one surface, which is in contact with the anode plate (1), of the anode sealing gasket (4), and the anode sealing gasket (4) is bonded with the anode plate (1) by applying glue into the anode sealing gasket glue line groove (9);
the edge of the cathode plate (2) is provided with a cathode plate sealing rib (8), and the cathode plate sealing rib (8) is a groove formed by the edge of the cathode plate (2) being recessed towards one side of the membrane electrode (3); a cathode plate sealing groove is formed between the two rows of the cathode plate sealing ribs (8); the cathode sealing washer (5) is arranged in the cathode plate sealing groove; and a cathode sealing gasket glue line groove (10) is formed in one surface, which is in contact with the cathode plate (2), of the cathode sealing gasket (5), and the cathode sealing gasket (5) is bonded with the cathode plate (2) by applying glue into the cathode sealing gasket glue line groove (10).
6. The seal structure of a fuel cell according to claim 5, wherein the height of each of the anode plate seal bead (7) and the cathode plate seal bead (8) is 0.2 to 0.4 mm; the thickness of the anode sealing washer (4) and the cathode sealing washer (5) is 0.4-0.6 mm; the height of the protrusion is 0.1-0.2 mm.
7. The sealing structure of the fuel cell according to claim 5, wherein the anode sealing gasket glue line groove (9) is arranged in the middle of the anode sealing gasket (4), and has a depth of 0.1-0.15mm and a width of 0.3-0.7 mm; the cathode sealing gasket glue line groove (10) is arranged in the middle of the cathode sealing gasket (5), the depth is 0.1-0.15mm, and the width is 0.3-0.7 mm.
8. The seal structure of a fuel cell according to claim 5, wherein said 2 coolant sealing gasket glue line grooves (11) are symmetrically provided in the middle of said coolant sealing gasket (6).
9. The seal structure of a fuel cell according to claim 5, wherein the coolant seal gasket (6) has a thickness of 0.5 to 0.8 mm; the depth of the cooling liquid sealing gasket rubber line groove (11) is 0.1-0.15mm, and the width is 0.3-0.7 mm; the thickness of the two sides of the cooling liquid sealing gasket (6) in the shape of a stick is 0.85-1.20 mm.
10. A method of assembling a fuel cell stack, characterized in that the fuel cell stack comprises a sealing structure of a fuel cell according to any one of claims 5 to 9; the method comprises the following steps: and sequentially stacking the anode plate (1) provided with the anode sealing washer (4), the membrane electrode (3), the cathode plate (2) provided with the cathode sealing washer (5) and the cooling liquid sealing washer (6) bonded to the cathode plate (2) to form a single battery, then applying glue to the cooling liquid sealing washer glue line groove (11), and bonding the cooling liquid sealing washer (6) with the anode plate (1) of the adjacent single battery.
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| CN202011363517.9A CN112310433B (en) | 2020-11-27 | 2020-11-27 | Sealing structure of fuel cell and assembly method of fuel cell stack |
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| CN202011363517.9A CN112310433B (en) | 2020-11-27 | 2020-11-27 | Sealing structure of fuel cell and assembly method of fuel cell stack |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116525872A (en) * | 2023-06-30 | 2023-08-01 | 苏州氢澜科技有限公司 | Low-leakage integrated single fuel cell sealing structure |
| CN117039038A (en) * | 2023-07-28 | 2023-11-10 | 国创氢能科技有限公司 | Packaging structure and assembling method of single fuel cell |
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| CN106374129A (en) * | 2016-11-09 | 2017-02-01 | 大连融科储能技术发展有限公司 | Flow-cell electric-pile sealing structure |
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| CN116525872A (en) * | 2023-06-30 | 2023-08-01 | 苏州氢澜科技有限公司 | Low-leakage integrated single fuel cell sealing structure |
| CN117039038A (en) * | 2023-07-28 | 2023-11-10 | 国创氢能科技有限公司 | Packaging structure and assembling method of single fuel cell |
| CN117039038B (en) * | 2023-07-28 | 2024-02-23 | 国创氢能科技有限公司 | Packaging structure and assembling method of single fuel cell |
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