CN216354318U - Membrane electrode frame injecting glue seal structure - Google Patents
Membrane electrode frame injecting glue seal structure Download PDFInfo
- Publication number
- CN216354318U CN216354318U CN202121911147.8U CN202121911147U CN216354318U CN 216354318 U CN216354318 U CN 216354318U CN 202121911147 U CN202121911147 U CN 202121911147U CN 216354318 U CN216354318 U CN 216354318U
- Authority
- CN
- China
- Prior art keywords
- glue
- membrane electrode
- glue line
- groove
- holes
- 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.)
- Active
Links
Images
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 provides a membrane electrode frame glue injection sealing structure which comprises an upper die, a membrane electrode and a lower die which are arranged from top to bottom; a first glue line groove is formed in one side, close to the membrane electrode, of the upper die; a second glue line groove is formed in one side, close to the membrane electrode, of the lower die; the first glue line groove is used for injecting glue to form a first glue line; the second glue line groove is used for injecting glue to form a second glue line; a plurality of communicating holes are formed in the frame of the membrane electrode; the first glue line and the second glue line are connected through the communication hole. The intercommunicating pore is arranged on the membrane electrode frame, so that the glue lines on the two sides of the membrane electrode frame can be connected through the intercommunicating pore and are fixed with the membrane electrode frame, and the problem that the glue lines on the two sides of the membrane electrode frame are staggered in the assembly process of the cell stack is effectively solved. Through the sealing face structure of customization rubber wire, can improve the suitability and the durability of sealing member under the prerequisite of guaranteeing sealed effect, prolong the sealed life of fuel cell stack.
Description
Technical Field
The utility model relates to the technical field of sealing in fuel cells and cell stacks, in particular to a membrane electrode frame glue injection sealing structure.
Background
Fuel cells are on-line power generation devices that convert chemical energy into electrical energy, and fuel cell engines are considered to be the most important direction in the future for the development of automotive power plants due to the breakthrough of efficiency limitations of conventional internal combustion engines. Taking a Proton Exchange Membrane Fuel Cell (PEMFC) as an example, a fuel cell stack is formed by stacking a plurality of single cells, a gas source enters each single cell through a fuel inlet of the stack, passes through a specified sealed flow channel in the cell and participates in a reaction, and residual gas flows out of the stack from an outlet of the stack. The sealing of the stack is critical to ensure proper operation of the stack. Poor or failed sealing of the stack can lead to reduced performance of the stack, damage to internal components of the stack, and even explosion, resulting in safety accidents. In a hydrogen fuel cell, three-cavity fluids are generally sealed in the form of sealant lines or screen printing; the screen printing process is only suitable for the internal fitting of the graphite bipolar plate and the sealing of the cooling flow channel, and the sealing between reactant gas and the membrane electrode generally adopts a sealing rubber line.
At present, in the practical assembly application of the fuel cell stack, there are various molding forms of the sealant line, such as a form of dispensing and curing UV glue in the sealant line groove of the bipolar plate, a form of customizing the sealant line by a mold molding manner, a form of injection molding or glue injection molding on the bipolar plate, and a form of compression molding of silica gel on the frame of the membrane electrode. However, the sealing rubber lines of the above molding process have some problems, for example, in the form of dispensing UV rubber in the rubber line grooves, due to the inherent characteristics of the dispensing, the sealing surface of the formed rubber lines is elliptical, which may cause the rubber lines on both sides of the frame of the membrane electrode to be dislocated during assembly, and gas leakage is very likely to occur during the operation of the cell stack; the customized rubber wire formed by the mold is very complicated in assembly and assembly, is only suitable for the development stage of a cell stack prototype and is not suitable for batch production; the injection molding or glue injection molding on the bipolar plate and the silica gel injection molding on the frame of the membrane electrode not only have complex manufacturing process and high cost, but also can cause hidden damage to parts.
SUMMERY OF THE UTILITY MODEL
Based on the structure, the utility model provides the membrane electrode frame glue injection sealing structure, which aims to simplify the existing glue line manufacturing process and reduce the manufacturing cost, and can effectively prevent the possible dislocation situation in the assembly process because the sealing structure is used for injecting glue and curing at the two sides of the membrane electrode frame simultaneously.
In order to achieve the purpose, the utility model provides the following technical scheme:
a membrane electrode frame glue injection sealing structure comprises an upper die, a membrane electrode and a lower die which are arranged from top to bottom; a first glue line groove is formed in one side, close to the membrane electrode, of the upper die; a second glue line groove is formed in one side, close to the membrane electrode, of the lower die; the first glue line groove and the second glue line groove have the same structure; the first glue line groove is used for injecting glue to form a first glue line; the second glue line groove is used for injecting glue to form a second glue line; the first glue line and the second glue line have the same structure; the area of the frame of the membrane electrode corresponding to the first adhesive line groove is a first sealing area; the area of the frame of the membrane electrode corresponding to the second adhesive tape groove is a second sealing area; a plurality of communication holes for communicating the first sealing area and the second sealing area are formed in the frame of the membrane electrode; the first glue line and the second glue line are connected through the communication hole and fixed with the frame of the membrane electrode together, so that the problem that the glue lines on two sides of the frame of the membrane electrode are staggered in the assembly process of the cell stack can be effectively solved.
Further, the communicating holes are circular through holes, square through holes, triangular through holes and oval through holes.
Further, the maximum size of the cross section of the communication hole is smaller than or equal to the width of the first glue line.
Further, the center distance between two adjacent communication holes is 1.5-3 times of the maximum size of the cross section of the communication hole. Therefore, the stability of the first glue line and the second glue line after the first glue line and the second glue line are connected through the communication hole can be guaranteed.
Further, the sealing surface of the first glue line and the sealing surface of the second glue line are both flat surfaces.
Furthermore, the sealing surface of the first glue line and the sealing surface of the second glue line are both provided with a communication elongated slot.
Further, the width of the long communication groove is less than or equal to one third of the width of the first glue line.
Furthermore, groove holes are formed in the sealing surface of the first glue line and the sealing surface of the second glue line.
Furthermore, the ditch hole is square ditch hole, circular ditch hole, triangle-shaped ditch hole, oval-shaped ditch hole.
Furthermore, all be provided with a plurality of injecting glue holes that are used for the injecting glue on the lateral wall in first gluey line groove with second gluey line groove and a plurality of exhaust holes that are used for the exhaust.
According to the membrane electrode frame glue injection sealing structure provided by the utility model, the intercommunicating pores are formed in the membrane electrode frame, so that the glue lines on the two sides of the membrane electrode frame can be connected and fixed through the intercommunicating pores, the problem that the glue lines on the two sides of the membrane electrode are staggered in the assembling process of a cell stack is effectively solved, and the sealing property of the finished cell stack is ensured. Through the sealing face structure of customization rubber wire, can improve the suitability and the durability of sealing member under the prerequisite of guaranteeing sealed effect, prolong the sealed life of fuel cell stack. The utility model has simple process and manufacture, easy assembly, excellent sealing effect, low cost and strong practicability, and is particularly suitable for batch production.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is an exploded view of a frame glue injection sealing structure of a membrane electrode according to an embodiment of the present invention;
FIG. 2 is an exploded view from another perspective of FIG. 1;
FIG. 3 is a perspective view of the membrane electrode of FIG. 1;
fig. 4 is a top view of the structure of the film electrode in fig. 1 after glue injection (including the first glue line and the second glue line);
FIG. 5 is a partial view in section taken in the direction B-B of FIG. 4;
FIG. 6 is an enlarged view of one embodiment of detail A of FIG. 4;
FIG. 7 is an enlarged view of another embodiment of detail A of FIG. 4;
fig. 8 is an enlarged view of yet another embodiment of detail a in fig. 4.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, top and bottom … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
At present, in the assembly application of an actual cell stack, there are various molding forms of the sealant line, for example, a form of dispensing and curing UV glue in a sealant groove of a bipolar plate, a form of customizing the sealant line by a mold molding manner, a form of injection molding or glue injection molding on the bipolar plate, a form of compression molding of silicone on a frame of a membrane electrode, and the like. However, the sealing rubber lines of the above molding process have some problems, for example, in the form of dispensing UV rubber in the rubber line grooves, the sealing surface of the formed rubber lines is elliptical due to the inherent characteristics of the dispensing, and the shape causes the rubber lines on both sides of the frame of the membrane electrode to be dislocated during assembly, thereby causing gas leakage in the operation process of the cell stack; the customized glue line formed by the die is very complicated in assembly, is only suitable for the development stage of a cell stack prototype and is not suitable for batch production; the injection molding or injection molding on the bipolar plate and the silica gel compression molding on the frame of the membrane electrode have complex manufacturing process and high manufacturing cost, and can cause hidden damage to parts. In order to solve the technical problem, the utility model provides a film electrode frame glue injection sealing structure.
Example 1:
as shown in fig. 1 to 5, a membrane electrode frame glue injection sealing structure provided in an embodiment of the present application includes an upper mold 1, a membrane electrode 2, and a lower mold 3, which are arranged from top to bottom; a first glue line groove 11 is formed in one side, close to the membrane electrode 2, of the upper die 1; a second glue line groove 31 is formed in one side, close to the membrane electrode 2, of the lower die 3; the first glue line groove 11 and the second glue line groove 31 have the same structure; the first glue line groove 11 is used for injecting glue to form a first glue line 4; the second glue line groove 31 is used for injecting glue to form a second glue line 5; the first glue line 4 and the second glue line 5 have the same structure; the area of the frame of the membrane electrode 2 corresponding to the first glue line groove 11 is a first sealing area (not marked in the figure, namely the area of the frame of the membrane electrode 2 close to one side of the first glue line groove 11 is the first sealing area); the area of the frame of the membrane electrode 2 corresponding to the second glue line groove 31 is a second sealing area (not marked in the figure, that is, the area of the frame of the membrane electrode 2 close to one side of the second glue line groove 31 is the second sealing area); a plurality of communication holes 21 for communicating the first sealing area and the second sealing area are arranged on the frame of the membrane electrode 2; the first glue line 4 and the second glue line 5 are connected through the communication hole 21 and fixed with the frame of the membrane electrode together.
Referring to fig. 5 again, in the embodiment of the present application, the first glue line 4 and the second glue line 5 are both formed by glue injection and compression molding, and are connected to form an integral body through the communication hole 21, compared with other sealing and forming processes, the sealing structure of the present application can ensure that the sealing glue lines on both sides of the frame of the membrane electrode 2 are aligned accurately, can effectively avoid the problem of dislocation of the glue lines on both sides of the frame of the membrane electrode 2 during the assembly process of the cell stack, can effectively ensure the sealing performance of the cell stack, and has high yield; simultaneously, the structure of this application can make the technology of this application simpler, the practicality is stronger.
The communication holes 21 are circular through holes, square through holes, triangular through holes and oval through holes. In the embodiment, it is specifically a circular through hole.
The maximum size of the cross section of the communication hole 21 is smaller than or equal to the width of the first glue line 4, so that the sealing effect of the membrane electrode can be better ensured. In the embodiment of the present application, the first glue line 4 and the second glue line 5 are both in a strip structure, and therefore, the width of the first glue line 4 and the width of the second glue line 5 refer to the width of the strip structure. The first glue line 4 is arranged around the inlet and outlet and carbon of the three-cavity fluid channels on one side of the membrane electrode, and the second glue line 5 is arranged around the inlet and outlet and carbon of the three-cavity fluid channels on the other side of the membrane electrode. The three-cavity fluid passages in the embodiments of the present application refer to a fuel passage, a cooling water passage, and an oxidizer passage.
The center distance between two adjacent communication holes 21 is 1.5 times to 3 times of the maximum size of the cross section of the communication hole 21. This ensures the stability of the first glue line 4 and the second glue line 5 after they are connected through the communication hole 21.
In the present embodiment, when the communication hole 21 is a circular through hole, the maximum size of the cross section of the communication hole 21 is the diameter of the circular through hole; when the communication hole 21 is a square through hole or a triangular through hole, the maximum size of the cross section of the communication hole 21 is the diameter of the circumscribed circle of the square through hole and the diameter of the circumscribed circle of the triangular through hole; when the communication hole 21 is an elliptical through hole, the maximum dimension of the cross section of the communication hole 21 is the major diameter of the elliptical through hole.
Referring to fig. 6, in the present embodiment, the sealing surface of the first glue line 4 and the sealing surface of the second glue line 5 are both planar.
In this embodiment, the side walls of the first glue line groove 11 and the second glue line groove 31 are respectively provided with a plurality of glue injection holes (not marked in the figure) for injecting glue and a plurality of exhaust holes (not marked in the figure) for exhausting air. The glue injection hole is used for connecting the glue injection device with the glue line groove, so that the glue injection device can inject glue, and the air in the glue injection groove can be rapidly discharged through the exhaust hole in the glue injection process so as to improve the glue injection efficiency. In this embodiment, the glue injection hole circumference is arranged at the outermost side of the glue line groove, and the exhaust hole axial circumference is arranged at the innermost side of the glue line groove.
The membrane electrode frame glue injection sealing structure provided by the embodiment of the application has the following manufacturing process: firstly, clamping the upper side and the lower side of a membrane electrode 2 by using an upper die 1 and a lower die 3, wherein in the clamping process, a first glue line groove 11 of the upper die 1 and a second glue line groove 31 of the lower die 3 are required to be arranged oppositely, and one side of a communication hole 21 on the membrane electrode 2 covered by the first glue line groove 11 and the other side of the communication hole 21 on the membrane electrode 2 covered by the second glue line groove 31 are required to be ensured; then, injecting glue into the first glue line groove 11 and the second glue line groove 31 through the glue injection holes by using a glue injection device; along with the glue injection, the first glue line 4 in the first glue line groove 11 is communicated and fixed with the second glue line 5 in the second glue line groove 31 through the communicating hole 21; after the glue injection and solidification are finished, the upper die 1 and the lower die 3 need to be taken out; finally, the membrane electrode 2 with the sealing rubber line is obtained; the plurality of membrane electrodes 2 manufactured according to the above steps are sequentially stacked to obtain a stack having excellent sealing performance. It should be noted that, in the glue injection process, after the glue lines are fully filled in the exhaust holes, the completion of the glue injection is indicated, the glue injection is stopped, and the waste is avoided.
Example 2:
example 2 differs from example 1 in that: referring to fig. 7, in this embodiment, a long communication groove 41 is formed on each of the sealing surface of the first glue line 4 and the sealing surface of the second glue line 5; the long communication groove 41 forms a multi-line sealing structure of the sealing surface, and compared with the planar single-line sealing structure in embodiment 1, the sealing structure has better sealing performance.
The width of the long communication groove 41 is less than or equal to one third of the width of the first glue line 4.
Example 3:
example 3 differs from example 1 in that: referring to fig. 8, in the present embodiment, groove holes 51 are formed on the sealing surface of the first glue line 4 and the sealing surface of the second glue line 5; the groove holes 51 form a multi-line sealing structure of a sealing surface, have excellent sealing performance of multi-line sealing, and can effectively block gas leaked into the sealing surface into small groove holes one by one to prevent excessive mixing of leaked gas; in addition, the sealing surface structure can also ensure the yield of the sealing glue line during glue injection molding, and reduce the occurrence of bubbles, distortion and the like; the sealing surface structure can also ensure the use stability of the sealing rubber wire and prolong the service life of the rubber wire.
The groove hole 51 is a square groove hole, a circular groove hole, a triangular groove hole or an oval groove hole. In the embodiment, it is a square trench hole.
In the embodiment of the present application, the sealing surface of the first glue line 4 refers to a plane on which a side of the first glue line 4 away from the membrane electrode 2 is located; the sealing surface of the second glue line 5 refers to a plane on which the side of the second glue line 5 away from the membrane electrode 2 is located.
According to the membrane electrode frame glue injection sealing structure provided by the utility model, the intercommunicating pores 21 are formed in the frame of the membrane electrode 2, so that the glue lines on the two sides of the frame of the membrane electrode can be connected through the intercommunicating pores 21 and fixed with the frame of the membrane electrode, the problem that the glue lines on the two sides of the frame of the membrane electrode 2 are staggered in the assembling process of a cell stack is effectively solved, and the sealing performance of the finished cell stack is ensured. By customizing the sealing surface structure of the rubber wire, the applicability and the durability of the sealing element can be improved on the premise of ensuring the sealing effect, and the service life of the fuel cell stack seal is prolonged. The utility model has simple process and manufacture, easy assembly, excellent sealing effect, low cost and strong practicability, and is particularly suitable for batch production.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A membrane electrode frame glue injection sealing structure is characterized by comprising an upper die, a membrane electrode and a lower die which are arranged from top to bottom; a first glue line groove is formed in one side, close to the membrane electrode, of the upper die; a second glue line groove is formed in one side, close to the membrane electrode, of the lower die; the first glue line groove and the second glue line groove have the same structure; the first glue line groove is used for injecting glue to form a first glue line; the second glue line groove is used for injecting glue to form a second glue line; the first glue line and the second glue line have the same structure; the area of the frame of the membrane electrode corresponding to the first adhesive line groove is a first sealing area; the area of the frame of the membrane electrode corresponding to the second adhesive tape groove is a second sealing area; a plurality of communication holes for communicating the first sealing area and the second sealing area are formed in the frame of the membrane electrode; the first glue line and the second glue line are connected through the communication hole.
2. The membrane electrode frame glue injection sealing structure according to claim 1, wherein the communication holes are circular through holes, square through holes, triangular through holes, or oval through holes.
3. The membrane electrode frame glue injection sealing structure according to claim 1, wherein the maximum cross-sectional dimension of the communication hole is less than or equal to the width of the first glue line.
4. The membrane electrode frame glue injection sealing structure according to claim 1, wherein the center distance between two adjacent communication holes is 1.5-3 times the maximum size of the cross section of the communication hole.
5. The membrane electrode frame glue injection sealing structure according to claim 1, wherein the sealing surface of the first glue line and the sealing surface of the second glue line are both planar.
6. A membrane electrode frame glue injection sealing structure according to claim 1, wherein the sealing surface of the first glue line and the sealing surface of the second glue line are provided with a long communication groove.
7. The membrane electrode frame glue injection sealing structure according to claim 6, wherein the width of the communication long groove is less than or equal to one third of the width of the first glue line.
8. The membrane electrode frame glue injection sealing structure according to claim 1, wherein groove holes are formed in the sealing surface of the first glue line and the sealing surface of the second glue line.
9. The membrane electrode frame glue injection sealing structure according to claim 8, wherein the groove holes are square groove holes, circular groove holes, triangular groove holes, or oval groove holes.
10. A membrane electrode frame glue injection sealing structure according to claim 1, wherein the side walls of the first glue line groove and the second glue line groove are provided with a plurality of glue injection holes for injecting glue and a plurality of exhaust holes for exhausting air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121911147.8U CN216354318U (en) | 2021-08-13 | 2021-08-13 | Membrane electrode frame injecting glue seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121911147.8U CN216354318U (en) | 2021-08-13 | 2021-08-13 | Membrane electrode frame injecting glue seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216354318U true CN216354318U (en) | 2022-04-19 |
Family
ID=81168842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121911147.8U Active CN216354318U (en) | 2021-08-13 | 2021-08-13 | Membrane electrode frame injecting glue seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216354318U (en) |
-
2021
- 2021-08-13 CN CN202121911147.8U patent/CN216354318U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5981098A (en) | Fluid flow plate for decreased density of fuel cell assembly | |
| JP4418527B2 (en) | Fuel cell | |
| CN108172857B (en) | Fuel cell stack flow field plate supporting high-current-density discharge | |
| US8609298B2 (en) | Form and fill subgasket | |
| CN111554950B (en) | Bipolar plate, fuel cell unit, fuel cell and manufacturing method thereof | |
| CN107408712B (en) | Separator for fuel battery and its manufacturing method | |
| WO2021218906A1 (en) | Fuel cell and flow distribution apparatus | |
| JP2008066264A (en) | Laminating property improving structure of metal separator for fuel cell stack | |
| CN108346810A (en) | Fuel cell micro sealing part and its manufacturing method | |
| CN214753855U (en) | Bipolar plate | |
| CN113659168A (en) | Proton exchange membrane single cell and fuel cell | |
| CN111193045A (en) | Bipolar plate of fuel cell and fuel cell | |
| US20080166617A1 (en) | Fuel cell and cell assembly for fuel cell | |
| CN212625674U (en) | Integrated fuel cell single cell and fuel cell stack | |
| CN113745563B (en) | Bipolar plate assembly, manufacturing process thereof, electric pile and fuel cell vehicle | |
| CN113690459A (en) | Membrane electrode frame glue injection sealing structure and glue injection method | |
| CN111490262B (en) | Metal bipolar plate of fuel cell and fuel cell | |
| CN113809337A (en) | Fuel cell bipolar plate and fuel cell | |
| CN216354318U (en) | Membrane electrode frame injecting glue seal structure | |
| CN211182376U (en) | Fuel cell stack | |
| CN115172840B (en) | Fuel cell common end plate and double-stack fuel cell | |
| CN100356618C (en) | High-efficient fuel battery guide bipolar plates and producing method thereof | |
| CN114023992A (en) | Integrated membrane electrode frame sealing structure with double-sided glue injection | |
| CN216354317U (en) | Fuel cell with rubber line-frame sealing element structure | |
| CN209183647U (en) | Fuel cell separator part, individual fuel cells and fuel cell pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |