CN220341265U - Single cell, fuel cell stack and vehicle - Google Patents
Single cell, fuel cell stack and vehicle Download PDFInfo
- Publication number
- CN220341265U CN220341265U CN202321995455.2U CN202321995455U CN220341265U CN 220341265 U CN220341265 U CN 220341265U CN 202321995455 U CN202321995455 U CN 202321995455U CN 220341265 U CN220341265 U CN 220341265U
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- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 71
- 239000003292 glue Substances 0.000 claims abstract description 65
- 239000012528 membrane Substances 0.000 claims abstract description 51
- 238000002347 injection Methods 0.000 claims abstract description 40
- 239000007924 injection Substances 0.000 claims abstract description 40
- 239000000110 cooling liquid Substances 0.000 claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 24
- 239000001257 hydrogen Substances 0.000 claims abstract description 22
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 description 14
- 239000002826 coolant Substances 0.000 description 9
- 238000009826 distribution Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Fuel Cell (AREA)
Abstract
The utility model relates to a single cell, a fuel cell stack and a vehicle, comprising an anode plate, a membrane electrode and a cathode plate; the anode plate comprises an anode runner, a hydrogen inlet and a hydrogen outlet which are communicated with the anode runner, and a cooling liquid inlet and a cooling liquid outlet; the cathode plate comprises a cathode runner, an air inlet and an air outlet which are communicated with the cathode runner, and a cooling liquid inlet and a cooling liquid outlet; the peripheral edge of the anode plate and the peripheral edge of the cooling liquid inlet and the peripheral edge of the cooling liquid outlet on the anode plate are respectively provided with a sealing groove; sealing grooves are arranged on the peripheral edges of the cathode plate and the peripheral edges of the cooling liquid inlet and the peripheral edges of the cooling liquid outlet on the cathode plate; a plurality of glue injection holes are formed in the sealing groove, and a sealing ring is formed in the sealing groove through glue injection; the sealing groove comprises a groove bottom surface and side surfaces positioned at two sides of the groove bottom surface, and an included angle between the side surfaces and the groove bottom surface is 120-160 degrees. The utility model can improve the tightness and rigidity of the single cell.
Description
Technical Field
The utility model relates to the technical field of fuel cell stacks, in particular to a single cell, a fuel cell stack and a vehicle.
Background
A fuel cell is an electrochemical energy conversion device that converts chemical energy into electrical energy, accompanied by the generation of byproduct water and the release of heat. The proton exchange membrane fuel cell has the advantages of high energy conversion efficiency, cleanness, no pollution, low noise and the like. The proton exchange membrane fuel cell consists of a catalytic layer, a gas diffusion layer, a proton exchange membrane, a cathode plate, an anode plate and other core components. Electrical energy can be continuously generated in the fuel cell as long as the fuel and oxidant are continuously supplied. The gas diffusion layer, the catalytic layer and the proton exchange membrane form a membrane electrode assembly. The proton exchange membrane is used for conducting protons (H+), preventing electron transfer and blocking cathode-anode reaction; the catalytic layers on the two sides are places where hydrogen and oxygen perform electrochemical reaction; the gas diffusion layer has the functions of supporting the catalytic layer, stabilizing the electrode structure, providing gas diffusion channels and improving water management; the electrode plate mainly has the functions of supporting a membrane electrode, collecting and transmitting current and heat, conveying reactant gas, radiating heat and draining water.
After the cathode plate, the membrane electrode and the anode plate are assembled into a single cell, different channels are formed in the single cell for gas and water to circulate, so that a sealing structure is required between the membrane electrode and the cathode plate and between the membrane electrode and the anode plate, and hydrogen, oxygen and coolant in each cavity of the single cell are prevented from leaking into each other or leaking to the external environment of the cell. At present, most sealing rings are used for sealing, but in the process of operating the fuel cell for a long time, the sealing rings are easy to age and lose efficacy, so that the performance of the single cell is reduced.
The sealing structure and sealing method of a non-welded metal plate cell as disclosed in patent document CN112701315a include: the anode plate, the membrane electrode and the cathode plate which are sequentially stacked along the same direction to form a single cell frame structure are provided with a plurality of glue injection holes, sealing glue is injected into the glue injection holes to form a sealing structure, and the single cell frame structure is connected in a sealing mode through the sealing structure to form an integrated glue injection sealing fuel cell structure. According to the scheme, the glue injection is used for replacing welding, so that the production efficiency is improved. However, this solution has a problem that the sealing is not reliable, thereby affecting the sealing of the single cells.
Therefore, it is necessary to develop a single cell, a fuel cell stack, and a vehicle.
Disclosure of Invention
The utility model provides a single cell, a fuel cell stack and a vehicle, which can enhance the sealing performance of the single cell.
The single cell comprises an anode plate, a membrane electrode and a cathode plate, wherein the anode plate, the membrane electrode and the cathode plate are sequentially stacked together and sealed by glue; the anode plate comprises an anode runner, a hydrogen inlet and a hydrogen outlet which are communicated with the anode runner, and a cooling liquid inlet and a cooling liquid outlet; the cathode plate comprises a cathode runner, an air inlet and an air outlet which are communicated with the cathode runner, and a cooling liquid inlet and a cooling liquid outlet;
the peripheral edge of the anode plate and the peripheral edge of the cooling liquid inlet and the peripheral edge of the cooling liquid outlet on the anode plate are respectively provided with a sealing groove protruding towards the direction far away from the membrane electrode;
the peripheral edge of the cathode plate and the peripheral edge of the cooling liquid inlet and the peripheral edge of the cooling liquid outlet on the cathode plate are respectively provided with a sealing groove protruding towards the direction far away from the membrane electrode;
a plurality of glue injection holes are formed in the sealing groove, and a sealing ring is formed in the sealing groove through glue injection;
the sealing groove comprises a groove bottom surface and side surfaces positioned at two sides of the groove bottom surface, an included angle between the side surfaces and the groove bottom surface is 120-160 degrees, and the sealing property and the rigidity of the single cell can be improved by designing the sealing groove with an inclined angle.
Optionally, a plurality of flanges are arranged at intervals on the edge of the anode plate, and the flanges on the anode plate can enlarge the contact area between the anode plate and the membrane electrode, so that the rigidity of the anode plate is improved; the edge interval of negative plate is equipped with a plurality of turn-ups, and the turn-ups on the negative plate can increase the area of contact of negative plate and membrane electrode to the rigidity of negative plate has been improved.
Optionally, a plurality of limit grooves are arranged in the seal groove at equal intervals; the membrane electrode is uniformly stressed, and the deformation or deflection of the polar plate is further prevented.
Optionally, a plurality of glue injection holes are formed in the sealing groove of the anode plate or the cathode plate, through holes are formed in the positions, corresponding to the glue injection holes, of the membrane electrode, after glue is injected through the glue injection holes, the glue flows into the sealing groove of the other electrode plate from the sealing groove of the one electrode plate through the membrane electrode; the reliability of connection and sealing between the anode plate, the membrane electrode and the cathode plate can be ensured.
Optionally, the anode plate is provided with mold locking edges on two sides of the sealing groove; the negative plate is provided with mold locking edges on two sides of the sealing groove; the mold locking edge is used for locking the cathode plate, the anode plate and the membrane electrode frame by the glue injection mold in the glue injection process of the single cell, so that glue enters the sealing groove to prevent glue overflow and glue infiltration into the non-sealing area.
Optionally, a first positioning hole and a second positioning hole are formed in the anode plate;
the cathode plate is provided with a first locating hole at a position corresponding to the first locating hole on the anode plate;
and a second locating hole is arranged on the cathode plate at a position corresponding to the second locating hole on the anode plate. The positioning function is provided in the process of assembling the single cells into the electric pile, and the positioning precision of the polar plate during assembly is improved.
The first locating holes are round locating holes, the second locating holes are bar locating holes, and the round locating holes and the bar locating holes on the anode plate are located on the diagonal line of the anode plate. The round positioning holes are designed to provide positioning effect in the process of assembling the single cells into the electric pile, so that the positioning precision of the polar plate assembly is improved, and the electric pile assembly efficiency is improved; the strip-shaped positioning holes are designed to avoid polar plate expansion caused by temperature change of the single cells in the glue injection process.
Optionally, the glue injection holes are located on the sealing groove at equal intervals, so that glue can be ensured to be uniformly injected into the sealing groove.
The fuel cell stack adopts the single cells.
The vehicle adopts the fuel cell stack.
The utility model has the beneficial effects that:
(1) The two sides of the sealing groove are provided with the inclined angles, and the inclined angles can increase the contact area of the polar plates (including the cathode plate and the anode plate) and the glue, so that the tightness and the rigidity of the single cell are improved.
(2) According to the utility model, the flanges are arranged at intervals on the edge of the anode plate, so that the contact area between the anode plate and the membrane electrode is increased by the flanges, and the rigidity of the anode plate is improved.
(3) According to the utility model, the flanges are arranged at intervals on the edge of the cathode plate, so that the contact area between the cathode plate and the membrane electrode is enlarged through the flanges, and the rigidity of the cathode plate is improved.
(4) According to the utility model, the mold locking edges are arranged on the two sides of the sealing groove on the polar plate, and the mold locking edges are arranged for the purpose that the glue injection mold locks the frames of the cathode plate, the anode plate and the membrane electrode in the glue injection process of the single cell, so that glue enters the sealing groove, and glue overflow and glue infiltration into a non-sealing area can be effectively prevented.
(5) According to the utility model, the positioning holes are arranged on the polar plates, and the positioning effect is provided through the positioning holes in the process of assembling the single cells into the electric pile, so that the positioning precision of the polar plates during assembling is improved.
Drawings
Fig. 1 is a schematic structural view of a single cell in the present embodiment;
fig. 2 is a schematic structural diagram of an anode plate in the present embodiment;
FIG. 3 is a schematic view of the structure of the cathode plate in the present embodiment;
FIG. 4 is a schematic diagram of a portion of a limiting groove and a glue hole in the present embodiment;
FIG. 5 is a cross-sectional view of the present embodiment at the seal groove and the glue injection hole;
FIG. 6 is a cross-sectional view of the present embodiment at the seal slot;
FIG. 7 is a cross-sectional view of the limiting groove in the present embodiment;
FIG. 8 is a partial schematic view of the flange in the present embodiment;
in the figure: the device comprises a 1-cathode plate, a 2-membrane electrode, a 3-anode plate, a 4-circular positioning hole, a 5-sealing groove, a 6-anode runner, a 7-hydrogen distribution area, an 8-hydrogen inlet, a 9-cooling liquid outlet, a 10-strip positioning hole, an 11-air distribution area, a 12-mold locking edge, a 13-air inlet, a 14-limiting groove, a 15-hydrogen outlet, a 16-cooling liquid inlet, a 17-cathode runner, a 18-air outlet, a 19-glue injection hole and a 20-flanging.
Detailed Description
Further advantages and effects of the present utility model will become readily apparent to those skilled in the art from the disclosure herein, by referring to the following description of the embodiments of the present utility model with reference to the accompanying drawings and preferred examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
As shown in fig. 1 to 7, in the present embodiment, a single cell includes an anode plate 3, a membrane electrode 2, and a cathode plate 1, the anode plate 3, the membrane electrode 2, and the cathode plate 1 are stacked together in order, and the anode plate 3, the membrane electrode 2, and the cathode plate 1 are sealed by adhesive bonding.
As shown in fig. 2, in the present embodiment, the anode plate 3 includes an anode flow channel 6 in a middle area, a cooling liquid inlet 16 and a hydrogen outlet 15 at one end of the anode plate 3, a hydrogen inlet 8 and a cooling liquid outlet 9 at the other end of the anode plate 3, a hydrogen distribution area 7 between the hydrogen outlet 15 and the anode flow channel 6 and between the hydrogen inlet 8 and the anode flow channel 6, and seal grooves 5 disposed around the edge of the anode plate 3, around the edge of the cooling liquid inlet 16, and around the edge of the cooling liquid outlet 9. Wherein the hydrogen distribution area 7 between the hydrogen inlet 8 and the anode flow channel 6 serves to uniformly flow hydrogen into the anode flow channel 6, and the hydrogen distribution area 7 between the hydrogen outlet 15 and the anode flow channel 6 serves to uniformly flow hydrogen out of the anode flow channel 6.
As shown in fig. 3, in the present embodiment, the cathode plate 1 includes a cathode runner 17 in the middle area, a coolant inlet 16 and an air inlet 13 at one end of the cathode plate 1, an air outlet 18 and a coolant outlet 9 at the other end of the cathode plate 1, an air distribution area 11 between the air outlet 18 and the cathode runner 17 and between the air inlet 13 and the cathode runner 17, and seal grooves 5 provided around the edges of the cathode plate 1, around the edges of the coolant inlet 16, and around the edges of the coolant outlet 9, respectively. Wherein the air distribution area 11 between the air inlet 13 and the cathode flow channels 17 serves to uniformly flow air into the cathode flow channels 17; the air distribution area 11 between the air outlet 18 and the cathode flow channels 17 serves to uniformly flow air from within the cathode flow channels 17.
As shown in fig. 4 to 6, in this embodiment, the peripheral edge of the anode plate 3, the peripheral edge of the coolant inlet 16 thereon, and the peripheral edge of the coolant outlet 9 are provided with seal grooves 5 protruding away from the membrane electrode 2. The sealing groove 5 on the anode plate 3 is a gap between the anode plate 3 and the frame of the membrane electrode 2, and is a region for glue filling.
As shown in fig. 4 to 6, in this embodiment, the peripheral edge of the cathode plate 1, the peripheral edge of the coolant inlet 16 thereon, and the peripheral edge of the coolant outlet 9 are provided with seal grooves 5 protruding away from the mea 2. The sealing groove 5 on the cathode plate 1 is a gap between the cathode plate 1 and the frame of the membrane electrode 2 and is a region for glue filling.
In this embodiment, as shown in fig. 4, a plurality of glue injection holes 19 are formed in the sealing groove 5 of the anode plate 3 or the cathode plate 1, and a sealing ring is formed in the sealing groove 5 by glue injection. The glue injection hole 19 is used for injecting glue to form a sealing structure in the single cell sealing process. The membrane electrode 2 is provided with a through hole at a position corresponding to the glue injection hole 19, when the anode plate 3 or the cathode plate 1 is only provided with the glue injection hole 19, after glue is injected through the glue injection hole 19 of one polar plate, the glue can flow into the sealing groove 5 of the other polar plate through the through hole, and meanwhile, the connection and sealing reliability among the anode plate 3, the membrane electrode 2 and the cathode plate 1 can be ensured.
As shown in fig. 5, in this embodiment, the seal groove 5 includes a groove bottom surface and side surfaces located at two sides of the groove bottom surface, where an included angle between the side surfaces and the groove bottom surface is 120 ° to 160 °, that is, a seal groove with an inclined angle is designed, so as to increase a contact area between the electrode plate (including the anode plate 3 and the cathode plate 1) and the glue, thereby improving tightness between the anode plate 3 and the membrane electrode 2, and between the cathode plate 1 and the membrane electrode 2, and also playing a role of supporting a seal ring (that is, formed after the glue injected into the seal groove 5 is cured), improving rigidity of the electrode plate, and preventing deformation of the electrode plate.
As shown in fig. 8, in this embodiment, a plurality of flanges 20 are spaced apart from the edge of the anode plate 3; the contact area of the anode plate 3 and the membrane electrode 2 is increased by the flange 20 on the anode plate 3, thereby improving the rigidity of the anode plate 3 to prevent the anode plate 3 from being deformed.
In this embodiment, as shown in fig. 8, a plurality of flanges 20 are provided at intervals on the edge of the cathode plate 1, and the contact area between the cathode plate 1 and the membrane electrode 2 is enlarged by the flanges 20 on the cathode plate 1, so that the rigidity of the cathode plate 1 is improved to prevent the cathode plate 1 from deforming.
In this embodiment, the radian of the flanges 20 on the cathode plate 1 and the anode plate 3 can be freely adjusted according to the design of the anode plate.
In this embodiment, as shown in fig. 4, a plurality of limiting grooves 14 are disposed in the sealing groove 5 at intervals; the limit groove 14 is added to limit the frame, so that the frame of the membrane electrode 2 is prevented from deforming in the single cell glue injection process.
As shown in fig. 7, in this embodiment, the seal groove 5 includes a groove bottom surface and side surfaces located at both sides of the groove bottom surface, and the limit groove 14 is a groove provided on the groove bottom surface and recessed toward the membrane electrode 2 side; the bottom surface of the limiting groove 14 is tightly attached to the membrane electrode 2 and used for limiting the frame of the membrane electrode 2, so that the frame of the membrane electrode 2 is prevented from deforming due to temperature change and liquid solidification extrusion in the glue injection process, and meanwhile, the deformation or deflection of the polar plate can be prevented.
In this embodiment, as shown in fig. 2 and fig. 3, a plurality of limiting grooves 14 are provided in the sealing groove 5 at equal intervals; the membrane electrode 2 is uniformly stressed, and the deformation or deflection of the polar plate is further prevented.
As shown in fig. 6, in this embodiment, the anode plate 3 is provided with mold locking edges 12 on both sides of the seal groove 5. The negative plate 1 is provided with mold locking edges 12 on two sides of the sealing groove 5. The mold locking edge 12 is used for locking the frames of the cathode plate 1, the anode plate 3 and the membrane electrode 2 by the glue injection mold in the glue injection process of the single cell, so that glue enters the sealing groove 5 to prevent glue overflow and glue infiltration into a non-sealing area.
As shown in fig. 2 and 3, in this embodiment, the anode plate 3 is provided with a first positioning hole and a second positioning hole. The cathode plate 1 is provided with a first locating hole at a position corresponding to the first locating hole on the anode plate 3. The cathode plate 1 is provided with a second locating hole at a position corresponding to the second locating hole on the anode plate 3. The first positioning holes are circular positioning holes 4, the second positioning holes are bar-shaped positioning holes 10, and the circular positioning holes 4 and the bar-shaped positioning holes 10 on the anode plate 3 are positioned on the diagonal line of the anode plate 3. The round positioning holes 4 are designed to provide positioning function in the process of assembling the single cells into the electric pile, so that positioning accuracy of the polar plates during assembly is improved, and assembly efficiency of the electric pile is improved. The strip-shaped positioning holes 10 are designed to avoid the expansion of the polar plate caused by the temperature change of the single cell in the glue injection process.
As shown in fig. 2 and 3, in this embodiment, the glue injection holes 19 are located on the sealing groove 5 at equal intervals, so as to ensure that glue is uniformly injected into the sealing groove 5.
In this embodiment, the number of the limiting slots 14, the shape and size of the glue injection holes 19 can be freely adjusted according to the design of the polar plates (i.e. including the anode plate and the cathode plate). The number of the glue injection holes 19 can be freely adjusted according to the glue injection process and the polar plate design.
In this embodiment, a fuel cell stack employing a single cell as described in this embodiment.
In this embodiment, a vehicle employs the fuel cell stack as described in this embodiment.
The embodiments described above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the embodiments described above, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the present utility model should be made in the equivalent manner, and are included in the scope of the present utility model.
Claims (10)
1. The single cell comprises an anode plate (3), a membrane electrode (2) and a cathode plate (1), wherein the anode plate (3), the membrane electrode (2) and the cathode plate (1) are sequentially stacked together and sealed by glue; the anode plate (3) comprises an anode runner (6), a hydrogen inlet (8) and a hydrogen outlet (15) which are communicated with the anode runner (6), and a cooling liquid inlet (16) and a cooling liquid outlet (9); the cathode plate (1) comprises a cathode runner (17), an air inlet (13) and an air outlet (18) which are communicated with the cathode runner (17), and a cooling liquid inlet (16) and a cooling liquid outlet (9); the method is characterized in that:
the peripheral edge of the anode plate (3) and the peripheral edge of the cooling liquid inlet (16) and the peripheral edge of the cooling liquid outlet (9) are respectively provided with a sealing groove (5) protruding towards the direction far away from the membrane electrode (2);
the peripheral edge of the cathode plate (1) and the peripheral edge of the cooling liquid inlet (16) and the peripheral edge of the cooling liquid outlet (9) are respectively provided with a sealing groove (5) protruding towards the direction far away from the membrane electrode (2);
a plurality of glue injection holes (19) are formed in the sealing groove (5), and a sealing ring is formed in the sealing groove (5) through glue injection;
the sealing groove (5) comprises a groove bottom surface and side surfaces positioned at two sides of the groove bottom surface, and an included angle between the side surfaces and the groove bottom surface is 120-160 degrees.
2. The single cell according to claim 1, wherein: a plurality of flanging (20) are arranged at intervals on the edge of the anode plate (3); a plurality of flanging (20) are arranged at intervals on the edge of the cathode plate (1).
3. The single cell according to claim 1, wherein: a plurality of limit grooves (14) are formed in the seal groove (5) at equal intervals.
4. The single cell according to claim 1, wherein: a plurality of glue injection holes (19) are formed in the sealing groove (5) of the anode plate (3) or the cathode plate (1), through holes are formed in the positions, corresponding to the glue injection holes (19), of the membrane electrode (2), and sealing rings are formed in the sealing groove (5) through glue injection.
5. The single cell according to claim 1, wherein: the anode plate (3) is provided with mold locking edges (12) on two sides of the sealing groove (5);
and the negative plate (1) is provided with mold locking edges (12) on two sides of the sealing groove (5).
6. The single cell according to claim 1, wherein: the anode plate (3) is provided with a first positioning hole and a second positioning hole;
a first positioning hole is formed in the cathode plate (1) at a position corresponding to the first positioning hole in the anode plate (3);
the cathode plate (1) is provided with a second locating hole at a position corresponding to the second locating hole on the anode plate (3).
7. The single cell according to claim 6, wherein: the first positioning holes are round positioning holes (4), the second positioning holes are strip-shaped positioning holes (10), and the round positioning holes (4) and the strip-shaped positioning holes (10) on the anode plate (3) are located on the diagonal line of the anode plate (3).
8. The single cell according to claim 1, wherein: the glue injection holes (19) are positioned on the sealing groove (5) at equal intervals.
9. A fuel cell stack characterized by: use of a single cell according to any one of claims 1 to 8.
10. A vehicle, characterized in that: a fuel cell stack according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321995455.2U CN220341265U (en) | 2023-07-27 | 2023-07-27 | Single cell, fuel cell stack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321995455.2U CN220341265U (en) | 2023-07-27 | 2023-07-27 | Single cell, fuel cell stack and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220341265U true CN220341265U (en) | 2024-01-12 |
Family
ID=89456980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321995455.2U Active CN220341265U (en) | 2023-07-27 | 2023-07-27 | Single cell, fuel cell stack and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220341265U (en) |
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2023
- 2023-07-27 CN CN202321995455.2U patent/CN220341265U/en active Active
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