CN112909290B - Frame, membrane electrode assembly and membrane electrode assembly preparation equipment - Google Patents
Frame, membrane electrode assembly and membrane electrode assembly preparation equipment Download PDFInfo
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- CN112909290B CN112909290B CN202110091244.5A CN202110091244A CN112909290B CN 112909290 B CN112909290 B CN 112909290B CN 202110091244 A CN202110091244 A CN 202110091244A CN 112909290 B CN112909290 B CN 112909290B
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- membrane electrode
- frame
- accommodating cavity
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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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
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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 frame, a membrane electrode assembly and membrane electrode assembly preparation equipment, and belongs to the technical field of fuel cells. The method comprises the following steps: a first frame portion and a second frame portion, the first frame portion and the second frame portion being integrally molded; the accommodating cavity is formed between the first frame part and the second frame part and allows a workpiece to be inserted; the first frame part comprises a first flow passage allowing the adhesive to enter, and the first flow passage is communicated with the accommodating cavity; the second frame portion comprises a second flow passage allowing the adhesive and air to flow out, and the second flow passage is communicated with the accommodating cavity. The invention solves the problem that the split frame is easy to cause relative dislocation to cause inconsistent contact between the frame positions at two sides and the frame and the membrane electrode in the using process through the integrated frame.
Description
Technical Field
The invention belongs to the technical field of fuel cells, and particularly relates to a frame, a membrane electrode assembly and membrane electrode assembly preparation equipment.
Background
In the prior art, a set of frames which are separately arranged is generally adopted for preparing the membrane electrode. In the use process of the split frame, the frame positions on the two sides and the contact between the frame and the membrane electrode are not consistent due to relative dislocation, so that the membrane electrode is damaged due to uneven stress on the two sides of the membrane electrode. Therefore, how to ensure the consistency of the bonding on the two sides of the membrane electrode becomes an urgent problem to be solved.
Disclosure of Invention
The invention provides a frame, a membrane electrode assembly and membrane electrode assembly preparation equipment for solving the technical problems in the background technology.
The invention adopts the following technical scheme:
a bezel, comprising: a first frame portion and a second frame portion, the first frame portion and the second frame portion being integrally molded; the accommodating cavity is formed between the first frame part and the second frame part and allows a workpiece to be inserted; the first frame part comprises a first flow passage allowing the adhesive to enter, and the first flow passage is communicated with the accommodating cavity; the second frame portion comprises a second flow passage allowing the adhesive and air to flow out, and the second flow passage is communicated with the accommodating cavity.
In a further embodiment, further comprising: the first protection portion and the second protection portion are filled in the accommodating cavity and arranged on two sides of the workpiece and used for uniformly coating the adhesive on the workpiece.
In a further embodiment, further comprising: the inlet is arranged on the first frame portion, communicated with the first flow channel and used for being connected with injection equipment, and the injection equipment injects the adhesive into the accommodating cavity; the inlet is arranged by protruding the surface of the first frame part.
In a further embodiment, further comprising: the outlet is arranged on the second frame part, is communicated with the second flow channel and is used for being connected with the storage equipment; the outlet is arranged to protrude from the surface of the second frame part.
In a further embodiment, the first frame portion and the second frame portion are vertically disposed.
In a further embodiment, the outlet is higher than the inlet.
In a further embodiment, the workpiece clamping device further comprises a sealing groove which is arranged around the opposite inner surface of the first frame portion and/or the second frame portion, the sealing groove is communicated with the accommodating cavity, and the sealing groove is arranged around the outer edge of the workpiece.
In a further embodiment, the workpiece is a membrane electrode.
A membrane electrode assembly comprising: a membrane electrode; further comprising: a membrane electrode frame comprising: a first frame portion and a second frame portion, the first frame portion and the second frame portion being integrally molded; the accommodating cavity allows the membrane electrode to be vertically inserted; the first flow passage is communicated with the accommodating cavity and the injection equipment and is used for injecting the adhesive in the injection equipment into the accommodating cavity; and the second flow passage is communicated with the accommodating cavity and the storage equipment and is used for discharging the adhesive and air, and the second flow passage is communicated with the accommodating cavity.
A membrane electrode assembly, further comprising: the first protection part and the second protection part are filled in the accommodating cavity, arranged on two sides of the membrane electrode and used for uniformly coating the binder on the membrane electrode.
In a further embodiment, further comprising: the inlet is arranged on the first frame portion, communicated with the first flow channel and used for being connected with injection equipment, and the injection equipment injects the adhesive into the accommodating cavity; the inlet is arranged by protruding the surface of the first frame part; the outlet is arranged on the second frame part, is communicated with the second flow channel and is used for being connected with the recovery equipment; the outlet is arranged to protrude out of the surface of the second frame part; the outlet is higher than the inlet.
In a further embodiment, the membrane electrode assembly further comprises a sealing groove and a sealing groove, wherein the sealing groove is arranged around the opposite inner surfaces of the first frame portion and/or the second frame portion, the sealing groove is communicated with the accommodating cavity, and the sealing groove is arranged around the outer edge of the membrane electrode.
A membrane electrode assembly preparation apparatus comprising: the storage device, the membrane electrode frame and the connecting pipe are connected with the storage device and the membrane electrode frame; further comprising: and the power device is connected with the connecting pipe and is used for pumping the adhesive in the storage equipment into the membrane electrode frame.
In a further embodiment, the membrane electrode frame includes: the accommodating cavity allows the membrane electrode to be vertically inserted; the first flow passage is communicated with the accommodating cavity and the injection equipment and is used for injecting the binder in the injection equipment into the accommodating cavity; the second flow passage is communicated with the accommodating cavity and the storage equipment and is used for discharging the adhesive and air; the first protection part and the second protection part are filled in the accommodating cavity, arranged on two sides of the workpiece and used for uniformly coating the binder on the membrane electrode.
In a further embodiment, further comprising: the inlet is arranged on the first frame portion, communicated with the first flow channel and used for being connected with injection equipment, and the injection equipment injects the adhesive into the accommodating cavity; the inlet is arranged by protruding the surface of the first frame part; the outlet is arranged on the second frame part, is communicated with the second flow channel and is used for being connected with the recovery equipment; the outlet is arranged to protrude out of the surface of the second frame part; the outlet is higher than the inlet.
In a further embodiment, the connection tube comprises: a first connecting pipe connected with the inlet; and a second connection pipe connected with the outlet; the connecting pipe is a flexible pipe.
In a further embodiment, the second connection pipe includes a connection portion and a buffer portion adjacently disposed, the connection portion being connected to the outlet, the buffer portion having an inner diameter larger than that of the connection portion.
In a further embodiment, the ratio of the inner diameter of the buffer to the inner diameter of the connection is 2: 1.
In a further embodiment, the depth of the first connecting tube into the storage device is smaller than the depth of the second connecting tube into the storage device.
In a further embodiment, the second connecting tube has an entry depth equal to or less than 1/3 of the storage device height; the first connection pipe has an entry depth equal to or greater than 2/3 of the storage device.
In a further embodiment, the power device is a pump body.
The invention has the beneficial effects that: the invention avoids the infirm bonding caused by point selection and improper dosage due to the dislocation of the split type frame in the dispensing process. Meanwhile, the dimensional tolerance and the complex process caused by the end plates bonded in batches are avoided, and the consistency is ensured.
The batch preparation process is flexible, glue can be injected only by preparing a proper frame, a large number of MEA frames can be prepared simultaneously, and the efficiency is obviously improved. The process steps are saved, and the original steps of dispensing, aligning, plate bonding and extruding are simplified into two steps of embedding a membrane electrode assembly (EMA) and injecting glue.
The invention can repeatedly utilize the glue, avoids the phenomena of material waste and uneven filling, keeps consistent bonding force after the glue is compacted and solidified, and avoids the damage of the membrane electrode and the reduction of the service life caused by uneven internal stress.
Drawings
FIG. 1 is a schematic view of the present invention.
The labels in FIG. 1 are: the membrane electrode assembly comprises a first frame portion 1, a second frame portion 2, a first protection portion 3, a membrane electrode 4, a first flow channel 5, a second flow channel 6, an inlet 7, an outlet 8, a sealing groove 9, a storage device 10, a first connecting pipe 11, a second connecting pipe 12 and a pump 13.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments of the present invention without inventive step, are within the scope of the present invention.
Research shows that the membrane electrode frame is prepared by a dispensing method generally adopted in the prior art, but the method has the following phenomena: the dispensing process has the problems of uncertain point positions and uneven glue amount, and has large control difficulty for personnel and no consistency; the end plate bonding process needs to be manually bonded on one side and the other side, so that the dimensional tolerance and the alignment mode are difficult to ensure, and the phenomena of dislocation or poor bonding exist; the manual pressing process has the problems that the end plate is easy to rotate and the extrusion force degrees at two sides are inconsistent to cause uneven stress due to improper glue amount and point position control at the early stage and manual force application.
Therefore, in order to solve the above problems, the inventors have devised a frame structure of an MEA of a fuel cell, and a glue injection system and method having the same.
A frame, frame: a first frame portion 1 and a second frame portion 2, the first frame portion 1 and the second frame portion 2 being integrally molded; the integrally formed frame cannot be dislocated relatively, and the bonding is firm. A containing cavity is formed between the first frame portion 1 and the second frame portion 2, and is used for inserting a workpiece, in this embodiment, the workpiece is a membrane electrode 4, in order to provide a gluing channel for an adhesive, the first frame portion 1 includes a first flow channel 5 allowing the adhesive to enter, and the first flow channel 5 is communicated with the containing cavity; the second frame portion 2 includes a second flow passage 6 that allows the adhesive and air to flow out, and the second flow passage 6 communicates with the accommodation chamber.
Preferably, the frame further comprises a first protection part 3 and a second protection part, wherein the first protection part 3 and the second protection part are respectively filled in the accommodating cavity and arranged on two sides of the workpiece, and are used for uniformly coating the adhesive on the workpiece. In this embodiment, the first protection portion 3 and the second protection portion are made of insulating silica gel, and are uniformly disposed on two sides of the membrane electrode 4, so as to prevent the membrane electrode 4 from generating an electric leakage phenomenon, and the insulating silica gel avoids hard squeezing of the membrane electrode 4.
Preferably, the frame further comprises an inlet 7, the inlet 7 is used for injecting the adhesive into the first frame portion 1, and the inlet 7 is arranged on the first frame portion 1 and is communicated with the first flow channel 5 and the injection device. In the embodiment, the adhesive is glue with the concentration of 1.1-2g/cm 3. The inlet 7 is protrudingly provided on the surface of the first frame portion 1.
Preferably, the frame further includes an outlet 8, and the outlet 8 is used for discharging the adhesive in the frame, so that the outlet 8 is disposed on the second frame portion 2 and is communicated with the second flow channel 6 and the storage device 10, and the outlet 8 is disposed on the surface of the second frame portion 2 in a protruding manner.
Preferably, the first frame portion 1 and the second frame portion 2 are vertically disposed, and the outlet 8 is higher than the inlet 7. Namely, the inlet 7 is positioned at the bottom end, and the glue outlet is positioned at the top end of the frame structure. That is, the adhesive is filled from bottom to top, and the glue moves upwards only after the first protection part 3 and the second protection part at the bottom are saturated, so that the first protection part 3 and the second protection part can be completely saturated, and the glue on the surface of the membrane electrode 4 is further ensured to be uniform. Meanwhile, the outlet 8 is higher than the inlet, so that the glue can be filled in the glue groove from bottom to top, and the air bubbles can be forced to be discharged upwards by flowing out from the top.
Preferably, the frame further includes: the sealing groove 9 is arranged around the opposite inner surfaces of the first frame portion 1 and/or the second frame portion 2, the sealing groove 9 is communicated with the accommodating cavity, and the sealing groove 9 is arranged around the outer edge of the workpiece. The vertical cross section of the sealing groove 9 in the embodiment is oval, so that the sealing performance of the adhesive during pouring is improved, and meanwhile, the sealing groove is used for removing bubbles and preventing bubble impurities from entering the first protection part 3 and the second protection part insulating silica gel.
Example 2
A membrane electrode 4 assembly comprising: a membrane electrode 4, further comprising: the membrane electrode 4 is framed. The frame of the membrane electrode 4 is as follows: a first frame portion 1 and a second frame portion 2, the first frame portion 1 and the second frame portion 2 being integrally molded; an accommodation chamber allowing the membrane electrode 4 to be vertically inserted; the first flow channel 5 is communicated with the accommodating cavity and the injection device and is used for injecting the binder in the injection device into the accommodating cavity; and a second flow path 6 communicating the accommodation chamber with the storage apparatus 10 for discharging the adhesive and air, the second flow path 6 communicating with the accommodation chamber.
Preferably, the membrane electrode 4 assembly further comprises: the first protection part 3 and the second protection part are filled in the accommodating cavity and arranged at two sides of the membrane electrode 4, and are used for uniformly coating the adhesive on the membrane electrode 4. The first protection part 3 and the second protection part are respectively filled in the accommodating cavity and arranged on two sides of the workpiece and used for uniformly coating the workpiece with the binder. In this embodiment, the first protection portion 3 and the second protection portion are made of insulating silica gel, and are uniformly disposed on two sides of the membrane electrode 4, so as to prevent the membrane electrode 4 from generating an electric leakage phenomenon, and the insulating silica gel avoids hard squeezing of the membrane electrode 4.
Preferably, the method further comprises the following steps: and an inlet 7, wherein the inlet 7 is used for injecting the adhesive into the first frame part 1, and the inlet 7 is arranged on the first frame part 1 and communicated with the first flow channel 5 and the injection device. In the embodiment, the adhesive is glue with the concentration of 1.1-2g/cm 3. The inlet 7 is protrudingly provided on the surface of the first frame portion 1.
And an outlet 8, wherein the outlet 8 is used for discharging the adhesive in the frame, so that the outlet 8 is arranged on the second frame part 2 and communicated with the second flow channel 6 and the storage device 10, and the outlet 8 is arranged on the surface of the second frame part 2 in a protruding way.
The first frame portion 1 and the second frame portion 2 are vertically arranged, and the outlet 8 is higher than the inlet 7. Namely, the inlet 7 is positioned at the bottom end, and the glue outlet is positioned at the top end of the frame structure. That is, the adhesive is filled from bottom to top, and the glue moves upwards only after the first protection part 3 and the second protection part at the bottom are saturated, so that the first protection part 3 and the second protection part can be completely saturated, and the glue on the surface of the membrane electrode 4 is further ensured to be uniform. Meanwhile, the outlet 8 is higher than the inlet, so that the glue can be filled in the glue groove from bottom to top, and the air bubbles can be forced to be discharged upwards by flowing out from the top.
Preferably, the membrane electrode 4 assembly further comprises: and the sealing groove 9 is surrounded on the opposite inner surfaces of the first frame part 1 and/or the second frame part 2, the sealing groove 9 is communicated with the accommodating cavity, and the sealing groove 9 is surrounded on the outer edge of the workpiece. The vertical cross section of the sealing groove 9 in the embodiment is oval, so that the sealing performance of the adhesive in the pouring process is improved, and meanwhile, the sealing groove is used for removing air bubbles and preventing air bubble impurities from entering the first protection part 3 and the second protection part insulating silica gel.
Example 3
A membrane electrode 4 assembly manufacturing apparatus comprising: the storage device 10, the membrane electrode 4 frame and the connecting pipe are connected with the storage device 10 and the membrane electrode 4 frame. Further comprising: and the power device is connected with the connecting pipe and is used for pumping the adhesive in the storage device 10 into the frame of the membrane electrode 4. In this embodiment, the power device is a pump 13.
Preferably, the frame of the membrane electrode 4 includes: an accommodation chamber allowing the membrane electrode 4 to be vertically inserted; the first flow channel 5 is communicated with the accommodating cavity and the injection device and is used for injecting the adhesive in the injection device into the accommodating cavity; a second flow path 6 communicating the accommodation chamber with the storage device 10 for discharging the adhesive and air; the first protection part 3 and the second protection part are filled in the accommodating cavity and arranged on two sides of the workpiece, and are used for uniformly coating the adhesive on the membrane electrode 4.
The first frame portion 1 is provided with an outlet 8, the outlet 8 is communicated with the first flow channel 5 and is used for being connected with an injection device, the injection device injects the adhesive into the accommodating cavity, and the inlet 7 is arranged on the surface of the first frame portion 1 in a protruding mode.
Still include, set up the export 8 on second frame portion 2, export 8 and second runner 6 intercommunication are connected with recovery plant for collect the binder, be convenient for later stage reuse. The outlet 8 is arranged to protrude from the surface of the second frame portion 2. The outlet 8 is higher than the inlet 7.
The membrane electrode 4 assembly preparing apparatus further comprises: and a connection pipe including a first connection pipe 11 and a second connection pipe 12, wherein the first connection pipe 11 is connected to the inlet 7, and the second connection pipe 12 is connected to the outlet 8. The connecting pipe is a flexible pipe.
Preferably, the second connection pipe 12 includes a connection portion connected to the outlet 8 and a buffer portion having an inner diameter larger than that of the connection portion, which are adjacently disposed.
Preferably, the ratio of the inner diameter of the buffer part to the inner diameter of the connection is 2: 1. The arrangement is that through the conversion between the thick pipe and the thin pipe, the flow rate of the thick pipe part is reduced, the flow rate is controlled to be 3cm3/min, the glue groove 8 is conveniently forced to be filled again, and the air bubbles are pushed out.
Preferably, the depth of the second connecting pipe 12 is less than or equal to 1/3 of the height of the storage device 10; the depth of entry of the first connecting pipe 11 is equal to or greater than 2/3 of the storage device 10. Since the storage device 10 (glue box) is used for storing and recycling the adhesive and combines the properties of the adhesive itself. And therefore, air bubbles are easily generated inside the glue tank. The glue at the bottom of the glue box is thick and has no bubbles, so that the glue feeding purity can be ensured. Because the depth of the first connecting pipe 11 in the machine is greater than or equal to 2/3 at the bottom of the storage device 10, the adhesive with better quality at the bottom of the adhesive box is directly extracted. The flow rate of the glue at the first connecting pipe 11 is controlled to be 5cm3/min, the glue fills the storage device 10 from bottom to top, the air is extruded out of the sealing groove 9 from bottom to top, and uniform extrusion force is formed after the sealing groove 9 is filled, so that bubbles are further reduced. At the same time, the glue penetrates into the first protective part 3 and the second protective part and adheres to the surface of the membrane electrode 4.
The power device is a pump body and is used for pumping the adhesive.
The glue injection method of the glue injection system of the fuel cell MEA specifically comprises the following steps:
filling insulating silica gel in the first accommodating cavity and the second accommodating cavity respectively, placing the MEA between the first frame and the second frame, and enabling the insulating silica gel to be close to two sides of the MEA;
pumping out the double-component glue in the glue box through a pump from a glue pumping port, wherein the concentration of the glue is 1.1-2g/cm3, the glue reaches a glue inlet pipe through a first pipeline, a glue inlet and a bent pipeline, the glue is accumulated in a glue groove until the glue groove is filled, air in the glue groove is squeezed out of the glue groove from top to bottom, and meanwhile the glue seeps into the filler under the diversion of the glue inlet pipe;
thirdly, the filler absorbs the glue from the bottom end, and the glue slowly penetrates into the filler from bottom to bottom after the filler absorbs the glue and is bonded with the surface of the MEA (membrane electrode assembly) plate;
and step four, when the whole filler is saturated, discharging the glue passing through the filler from the bent pipeline to the glue outlet, and finally returning the glue into the glue box again through the second pipeline, wherein the discharged glue can be recycled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (19)
1. A frame for preparing a membrane electrode, comprising:
a first frame portion and a second frame portion, the first frame portion and the second frame portion being integrally molded;
the accommodating cavity is formed between the first frame part and the second frame part and allows a workpiece to be inserted;
it is characterized in that the preparation method is characterized in that,
the first frame part comprises a first flow passage allowing the adhesive to enter, and the first flow passage is communicated with the accommodating cavity;
the second frame part comprises a second flow passage allowing the adhesive and air to flow out, and the second flow passage is communicated with the accommodating cavity;
the inlet is arranged on the first frame part, is communicated with the first flow channel and is used for being connected with adhesive storage equipment;
the outlet is arranged on the second frame part, is communicated with the second flow channel and is used for being connected with the storage equipment;
the first frame part and the second frame part are vertically arranged;
the outlet is higher than the inlet.
2. The frame for preparing a membrane electrode according to claim 1,
further comprising: the first protection part and the second protection part are filled in the accommodating cavity and arranged on two sides of the workpiece and used for uniformly coating the workpiece with the adhesive.
3. The frame for preparing a membrane electrode according to claim 1,
the inlet is also used for being connected with injection equipment, and the injection equipment injects the bonding agent into the accommodating cavity;
the inlet is arranged to protrude from the surface of the first frame portion.
4. A frame for preparing a membrane electrode according to claim 3,
the outlet is arranged to protrude from the surface of the second frame part.
5. The frame for preparing a membrane electrode according to claim 1,
still include the seal groove, enclose and locate first frame portion and/or the relative internal surface of second frame portion, the seal groove with the holding chamber intercommunication, the seal groove centers on the outer fringe setting of work piece.
6. A frame for preparing a membrane electrode according to claim 1, wherein the workpiece is a membrane electrode.
7. An assembly for preparing a membrane electrode, comprising:
a membrane electrode;
it is characterized by also comprising:
a membrane electrode frame comprising:
a first frame portion and a second frame portion, the first frame portion and the second frame portion being integrally molded;
the accommodating cavity allows the membrane electrode to be vertically inserted;
the first flow passage is communicated with the accommodating cavity and the injection device and is used for injecting the adhesive in the injection device into the accommodating cavity;
the second flow passage is communicated with the accommodating cavity and the storage device of the adhesive and used for discharging the adhesive and air, and the second flow passage is communicated with the accommodating cavity;
the inlet is arranged on the first frame part, is communicated with the first flow channel and is used for being connected with the storage equipment;
the outlet is arranged on the second frame portion, communicated with the second flow channel and used for being connected with the storage equipment;
the first frame part and the second frame part are vertically arranged;
the outlet is higher than the inlet.
8. An assembly for preparing a membrane electrode according to claim 7,
further comprising: the first protection part and the second protection part are filled in the accommodating cavity and arranged on two sides of the membrane electrode and are used for uniformly coating the adhesive on the membrane electrode.
9. An assembly for preparing a membrane electrode according to claim 7,
the inlet is also used for being connected with injection equipment, and the injection equipment injects the bonding agent into the accommodating cavity; the inlet is arranged to protrude out of the surface of the first frame part;
the outlet is arranged to protrude from the surface of the second frame part.
10. An assembly for preparing a membrane electrode according to claim 7,
the membrane electrode assembly further comprises a sealing groove which is arranged around the opposite inner surface of the first frame portion and/or the second frame portion, the sealing groove is communicated with the accommodating cavity, and the sealing groove surrounds the outer edge of the membrane electrode.
11. A production apparatus for producing a membrane electrode, comprising:
a storage device for the adhesive is provided,
the frame of the membrane electrode is provided with a plurality of grooves,
the connecting pipe is used for connecting the storage equipment and the membrane electrode frame;
it is characterized by also comprising:
the power device is connected with the connecting pipe and is used for pumping the adhesive in the storage equipment into the membrane electrode frame;
the membrane electrode frame comprises:
a first frame portion and a second frame portion, the first frame portion and the second frame portion being integrally molded;
the accommodating cavity allows the membrane electrode to be vertically inserted;
the first flow passage is communicated with the accommodating cavity and the injection device and is used for injecting the binder in the injection device into the accommodating cavity;
the second flow passage is communicated with the accommodating cavity and the storage device and is used for discharging the adhesive and air;
the inlet is arranged on the first frame part, is communicated with the first flow channel and is used for being connected with the storage equipment;
the outlet is arranged on the second frame part, is communicated with the second flow channel and is used for being connected with the storage equipment;
the first frame part and the second frame part are vertically arranged;
the outlet is higher than the inlet.
12. A production apparatus for producing a membrane electrode according to claim 11, characterized by further comprising:
the first protection part and the second protection part are filled in the accommodating cavity, arranged on two sides of the workpiece and used for uniformly coating the binder on the membrane electrode.
13. A manufacturing apparatus for manufacturing a membrane electrode according to claim 11, wherein said inlet is further adapted to be connected to said injection apparatus, and said injection apparatus injects an adhesive into said housing chamber; the inlet is arranged by protruding the surface of the first frame part;
the outlet is arranged to protrude from the surface of the second frame part.
14. The manufacturing apparatus for manufacturing a membrane electrode according to claim 13,
the connecting pipe includes: a first connecting pipe connected to the inlet;
and a second connection pipe connected with the outlet;
the connecting pipe is a flexible pipe.
15. A production apparatus for producing a membrane electrode according to claim 14, wherein the second connection pipe includes a connection portion and a buffer portion that are adjacently disposed, the connection portion being connected to the outlet, an inner diameter in the buffer portion being larger than an inner diameter of the connection portion.
16. A production apparatus for producing a membrane electrode according to claim 15, characterized in that a ratio of an inner diameter of the buffer portion to an inner diameter of the connection portion is 2: 1.
17. A production apparatus for producing a membrane electrode according to claim 15, wherein a depth of the first connection pipe into the storage apparatus is smaller than a depth of the second connection pipe into the storage apparatus.
18. A production apparatus for producing a membrane electrode according to claim 17, wherein said second connection pipe has an entry depth equal to or less than 1/3;
the first connection pipe has an entry depth equal to or greater than 2/3 of the storage device.
19. A manufacturing apparatus for manufacturing a membrane electrode according to claim 11, wherein the power device is a pump body.
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| CN202110091244.5A CN112909290B (en) | 2021-01-22 | 2021-01-22 | Frame, membrane electrode assembly and membrane electrode assembly preparation equipment |
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| CN202110091244.5A CN112909290B (en) | 2021-01-22 | 2021-01-22 | Frame, membrane electrode assembly and membrane electrode assembly preparation equipment |
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| CN112909290B true CN112909290B (en) | 2022-07-26 |
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| CN112242538A (en) * | 2019-07-17 | 2021-01-19 | 未势能源科技有限公司 | Packaging structure of fuel cell membrane electrode assembly and manufacturing method and application thereof |
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| JP5011764B2 (en) * | 2006-03-14 | 2012-08-29 | トヨタ自動車株式会社 | Manufacturing technology for integrated membrane electrode assembly |
| DE102008005502A1 (en) * | 2008-01-22 | 2009-07-30 | Daimler Ag | Fuel cell, in particular for arrangement in a fuel cell stack and fuel cell stack |
| CN111370731A (en) * | 2020-03-19 | 2020-07-03 | 浙江锋源氢能科技有限公司 | Membrane electrode frame, membrane electrode assembly, preparation method of membrane electrode assembly and fuel cell |
| CN112072132B (en) * | 2020-08-20 | 2021-09-28 | 佛山科学技术学院 | Pressure permeation glue injection device for flexible graphite bipolar plate for fuel cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112242538A (en) * | 2019-07-17 | 2021-01-19 | 未势能源科技有限公司 | Packaging structure of fuel cell membrane electrode assembly and manufacturing method and application thereof |
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