CN114464852A - Novel sealing process for fuel cell membrane electrode - Google Patents
Novel sealing process for fuel cell membrane electrode Download PDFInfo
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- CN114464852A CN114464852A CN202111604589.2A CN202111604589A CN114464852A CN 114464852 A CN114464852 A CN 114464852A CN 202111604589 A CN202111604589 A CN 202111604589A CN 114464852 A CN114464852 A CN 114464852A
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- resin frame
- polyester resin
- fuel cell
- cell membrane
- clamping plate
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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]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0286—Processes for forming seals
Abstract
The invention discloses a novel sealing process of a fuel cell membrane electrode, which relates to the technical field of fuel cell membrane electrodes; in order to improve the product quality; the fuel cell membrane electrode comprises a catalyst coating membrane, wherein the catalyst coating membrane is specifically a 3CCM (carbon nanotube-carbon nanotube) composed of a proton exchange membrane, an anode catalytic layer and a cathode catalytic layer; the catalyst coating film comprises a catalyst coating film and is characterized in that a first polyester resin frame A and a second polyester resin frame A are arranged at the top and the bottom of the catalyst coating film respectively, a first polyester resin frame B is arranged at the top of the first polyester resin frame A, a second polyester resin frame B is arranged at the bottom of the second polyester resin frame A, and a first gas diffusion layer is arranged at the top of the first polyester resin frame B. According to the invention, through the sealing process of 'frame first and gas diffusion layer later', the accurate positioning of the terylene resin frame is realized by utilizing the positioning hole. And the inner edge of the terylene resin frame is utilized to realize the accurate positioning of the gas diffusion layer.
Description
Technical Field
The invention relates to the technical field of fuel cell membrane electrodes, in particular to a novel sealing process of a fuel cell membrane electrode.
Background
The fuel cell is a device for directly converting chemical energy of fuel into electric energy, has the advantages of high efficiency, no pollution, light weight and the like, and has great development potential and application prospect. The proton exchange membrane fuel cell can work at low temperature, has higher power density and is very attractive in application. The membrane electrode is a core component of the proton exchange membrane fuel cell and is a place for energy conversion in the fuel cell. The membrane electrode takes charge of the transmission of multi-phase substances in the fuel cell and is responsible for converting the chemical energy of the fuel into electric energy through electrochemical reaction. Wherein the sealing technology of the membrane electrode is very critical. If the membrane electrode is not sealed well, on one hand, hydrogen and air are directly mixed in the stack, and a chemical reaction rapidly occurs under the action of a catalyst to release a large amount of heat. The proton exchange membrane is burnt through, the effect of isolating hydrogen and air is lost, and further the galvanic pile is exploded or burnt in a large area. On the other hand, hydrogen or air leaks to the outside of the stack, which reduces the energy use efficiency of the fuel cell. If the galvanic pile works in a closed space, leaked hydrogen is accumulated continuously in the surrounding space, so that explosion is easily caused, and great threat is caused to personnel and equipment.
The sizes of membrane electrodes of domestic fuel cell related companies or research institutes are not uniform, the demand is limited, and most of the membrane electrodes need to be customized independently. So that some designs for large-scale, standardized production cannot be well developed. The membrane electrode is generally produced by uniformly spraying anode and cathode catalysts onto a proton exchange membrane by using an ultrasonic spraying technology, drying and curing to form 3CCM (namely, the 3CCM represents an anode catalyst layer, a proton exchange membrane and a cathode catalyst layer), symmetrically hot-pressing and compounding the 3CCM and a glue-coated gas diffusion layer to form 5CCM (namely, the 5CCM is added with one gas diffusion layer on each of two sides of the 3 CCM), symmetrically hot-pressing and compounding the 5CCM and a frame to form 7CCM (namely, the 7CCM is added with one frame on each of two sides of the 5 CCM), and finally cutting into a specified specification to package single cells. This sealing scheme is referred to as "gas diffusion layer first then frame". However, in the preparation process of the 5CCM, on one hand, the 3CCM and the gas diffusion layer are all light-tight materials, and on the other hand, the process standard requires that the alignment precision of the 3CCM and the upper and lower gas diffusion layers is controlled within +/-0.2 mm. The technical difficulty in establishing an automatic, standardized and large-scale production line of the membrane electrode is high due to two reasons.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a novel sealing process of a fuel cell membrane electrode.
In order to achieve the purpose, the invention adopts the following technical scheme:
a novel sealing process of a fuel cell membrane electrode comprises a catalyst coating membrane, wherein the catalyst coating membrane is a 3CCM (carbon nanotube-carbon nanotube) composed of a proton exchange membrane, an anode catalyst layer and a cathode catalyst layer; the catalyst coating film comprises a catalyst coating film and is characterized in that a first polyester resin frame A and a second polyester resin frame A are respectively arranged at the top and the bottom of the catalyst coating film, a first polyester resin frame B is arranged at the top of the first polyester resin frame A, a second polyester resin frame B is arranged at the bottom of the second polyester resin frame A, a first gas diffusion layer is arranged at the top of the first polyester resin frame B, and a second gas diffusion layer is arranged at the bottom of the second polyester resin frame B; the first polyester resin frame A, the second polyester resin frame A, the first polyester resin frame B and the second polyester resin frame B are provided with matched positioning holes; the sealing step of the fuel cell membrane electrode comprises:
s1: dispensing four sides of the first gas diffusion layer and the second gas diffusion layer by using a dispenser;
s2: respectively positioning a first gas diffusion layer and a second gas diffusion layer by utilizing a first terylene resin frame B and a second terylene resin frame B;
s3: pressing the structures by using a pressing machine to form 7CCM, and ensuring the position of each positioning hole to be matched before pressing;
s4: and (5) sealing is completed.
Preferably: in the step of S1, hot melt adhesive is adopted for dispensing, and the width of the hot melt adhesive coating is 1mm, and the thickness is 10 μm.
Further: in the catalyst coating film, the area of the proton exchange film is 350mm multiplied by 110mm, the thickness is 8 mu m, and the catalyst coating film is placed in the middle; the anode catalyst layer and the cathode catalyst layer are respectively arranged at the upper side and the lower side of the proton exchange membrane, the areas of the anode catalyst layer and the cathode catalyst layer are both 330mm multiplied by 90mm, the alignment precision of the anode catalyst layer and the cathode catalyst layer is +/-0.1 mm and is positioned at the midpoint of the proton exchange membrane, and the total thickness of the anode catalyst layer and the cathode catalyst layer is 12 mu m.
Further preferred is: the first polyester resin frame A and the second polyester resin frame A are in a shape of a Chinese character 'hui'; the area of the outer edge is 440mm multiplied by 180mm, and the area of the inner edge is 330.4mm multiplied by 90.4 mm; the inner edges of the first polyester resin frame A and the second polyester resin frame A respectively leave a 0.2mm gap between the anode catalyst layer and the cathode catalyst layer, the two surfaces of the first polyester resin frame A and the second polyester resin frame A are both provided with hot melt adhesives, and the total thickness is 50 mu m.
As a preferable aspect of the present invention: the first polyester resin frame B and the second polyester resin frame B are in a shape of a Chinese character 'hui'; the area of the outer edge is 440mm multiplied by 180mm, and the area of the inner edge is 332.4mm multiplied by 92.4 mm; the clearance of 1mm is left between the interior limit of first dacron resin frame B and second dacron resin frame B and the interior limit of first dacron resin frame A and second dacron resin frame A respectively, and first dacron resin frame B and second dacron resin frame B only one side contain the hot melt adhesive, and the gross thickness is 50 mu m.
Further preferred as the invention: the novel sealing process of the fuel cell membrane electrode also relates to the preparation of 5CCM, and the preparation method comprises the following steps:
s11: placing a first polyester resin frame A and a second polyester resin frame A on two sides of a catalyst coating film to form 3 CCM-A;
s12: then placing the first polyester resin frame B and the second polyester resin frame B on two sides of the 3CCM-A to form 3 CCM-AB;
s13: and finally, putting the 3CCM-AB into a laminating machine for hot pressing to form 5 CCM.
As a still further scheme of the invention: the first gas diffusion layer and the second gas diffusion layer had an area of 332.4mm × 92.4mm and a thickness of 200 μm.
On the basis of the scheme: the dispensing machine in the step S1 includes a dispensing mechanism, a driving mechanism for driving the dispensing mechanism to dispense, and a clamp used in cooperation with the dispensing mechanism; the clamp comprises a base and a movable seat, the movable seat is arranged at the top of the base, a longitudinal fixed clamping plate and a transverse fixed clamping plate are fixed on the outer wall of the top of the movable seat, a first fixed plate and a second fixed plate are further fixed at the top of the movable seat, a longitudinal movable clamping plate matched with the longitudinal fixed clamping plate is arranged on one side of the first fixed plate, a transverse movable clamping plate matched with the transverse fixed clamping plate is arranged on one side of the second fixed plate, guide rods are fixed on the outer walls of one sides of the longitudinal movable clamping plate and the transverse movable clamping plate, the guide rods are respectively connected to the inner walls of the first fixed plate and the second fixed plate in a sliding mode, and second springs are fixed between the longitudinal movable clamping plate and the first fixed plate and between the transverse movable clamping plate and the second fixed plate; the clamping groove is formed in one side of the longitudinal fixed clamping plate, the longitudinal movable clamping plate, the transverse fixed clamping plate and the transverse movable clamping plate, and arc-shaped guide edges are arranged on the upper side and the lower side of the clamping groove.
On the basis of the foregoing scheme, it is preferable that: the glue dispensing mechanism comprises a glue dispensing head, wherein a mounting seat is fixed on the outer wall of one side of the glue dispensing head, the glue dispensing head is mounted on the driving mechanism through the mounting seat, an annular seat is fixed on the outer wall of the glue dispensing head through a fixed rod, a sliding ring is connected to the inner wall of the bottom of the annular seat in a sliding manner, a limiting frame is fixed on the outer wall of the top of the movable seat, and the limiting frame is matched with the sliding ring; the bottom of the dispensing head is provided with a glue needle.
It is further preferable on the basis of the foregoing scheme that: the outer wall of the top of the base is fixedly provided with a sliding rod which is connected to the inner wall of the movable seat in a sliding manner, and a first spring is fixed between the outer wall of the bottom of the movable seat and the outer wall of the top of the base.
The invention has the beneficial effects that:
1. according to the invention, through the sealing process of 'frame first and gas diffusion layer later', the accurate positioning of the terylene resin frame is realized by utilizing the positioning hole. And the inner edge of the terylene resin frame is utilized to realize the accurate positioning of the gas diffusion layer.
2. According to the invention, through the 5CCM laminating process of the four-layer frame process, the problem that the proton membrane bears larger laminating shearing force in the 5CCM production process is solved by pressing the inner edge of the frame B on the inner edge of the frame A while the air tightness requirement of the membrane electrode is met.
3. Through setting up first spring, spacing and slip ring isotructure, can be when gluing, actuating mechanism control dispensing head motion, dispensing head moves down to dispensing position point and glues, when moving down to a take the altitude, the slip ring contacts with spacing, glue the needle this moment and just satisfy the demand of gluing to the distance of material, this mode is when gluing, can ensure to glue the needle and reach the distance of material invariable, can prevent effectively that dispensing head descending distance is too big, and lead to gluing the problem of needle fish tail material, the reliability has been promoted.
Drawings
FIG. 1 is a schematic structural diagram of fuel cell membrane electrode detachment in a novel sealing process of a fuel cell membrane electrode according to the present invention;
FIG. 2 is a schematic structural diagram of a fixture and a dispensing mechanism in a novel sealing process of a fuel cell membrane electrode according to the present invention;
FIG. 3 is a schematic structural diagram of a fixture in the novel sealing process of a fuel cell membrane electrode according to the present invention;
FIG. 4 is a schematic structural view of a groove and an arc-shaped guiding edge in the novel sealing process of the fuel cell membrane electrode according to the present invention;
fig. 5 is a schematic structural diagram of a dispensing mechanism in the novel sealing process of a fuel cell membrane electrode according to the present invention.
In the figure: the device comprises a catalyst coating film 1, a first polyester resin frame A2, a first polyester resin frame B3, a first gas diffusion layer 4, a second polyester resin frame A5, a second polyester resin frame B6, a second gas diffusion layer 7, a base 8, a movable seat 9, a dispensing head 10, an installation seat 11, a limiting frame 12, a sliding rod 13, a first spring 14, a clamping groove 15, a second fixing plate 16, a transverse movable clamping plate 17, a longitudinal movable clamping plate 18, a first fixing plate 19, a guide rod 20, a second spring 21, a transverse fixed clamping plate 22, an arc-shaped guide edge 23, a sliding ring 24, an annular seat 25, a fixing rod 26 and a longitudinal fixed clamping plate 27.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1:
a novel sealing process of a fuel cell membrane electrode is disclosed, as shown in figures 1-5, the fuel cell membrane electrode of the process comprises a catalyst coating membrane 1, wherein the catalyst coating membrane 1 is a 3CCM (carbon nanotube-carbon nanotube) composed of a proton exchange membrane, an anode catalytic layer and a cathode catalytic layer; the catalyst coating film comprises a catalyst coating film 1 and is characterized in that the top and the bottom of the catalyst coating film 1 are respectively provided with a first polyester resin frame A2 and a second polyester resin frame A5, the top of the first polyester resin frame A2 is provided with a first polyester resin frame B3, the bottom of the second polyester resin frame A5 is provided with a second polyester resin frame B6, the top of the first polyester resin frame B3 is provided with a first gas diffusion layer 4, and the bottom of the second polyester resin frame B6 is provided with a second gas diffusion layer 7; the first polyester resin frame A2, the second polyester resin frame A5, the first polyester resin frame B3 and the second polyester resin frame B6 are provided with positioning holes matched with each other; the sealing step of the fuel cell membrane electrode comprises:
s1: dispensing four sides of the first gas diffusion layer 4 and the second gas diffusion layer 7 by using a dispenser;
s2: positioning the first gas diffusion layer 4 and the second gas diffusion layer 7 by using the first dacron resin frame B3 and the second dacron resin frame B6, respectively;
s3: pressing the structures by using a pressing machine to form 7CCM, and ensuring the position of each positioning hole to be matched before pressing;
s4: and (5) sealing is completed.
In the step of S1, hot melt adhesive is adopted for dispensing, and the width of the hot melt adhesive coating is 1mm, and the thickness is 10 μm.
In the catalyst coating film 1, the area of the proton exchange film is 350mm multiplied by 110mm, the thickness is 8 mu m, and the catalyst coating film is placed in the middle; the anode catalyst layer and the cathode catalyst layer are respectively arranged at the upper side and the lower side of the proton exchange membrane, the areas of the anode catalyst layer and the cathode catalyst layer are both 330mm multiplied by 90mm, the alignment precision of the anode catalyst layer and the cathode catalyst layer is +/-0.1 mm and is positioned at the midpoint of the proton exchange membrane, and the total thickness of the anode catalyst layer and the cathode catalyst layer is 12 mu m.
The outlines of the first polyester resin frame A2 and the second polyester resin frame A5 are in a shape of Chinese character 'hui'; the area of the outer edge is 440mm multiplied by 180mm, and the area of the inner edge is 330.4mm multiplied by 90.4 mm; the inner edges of the first polyester resin frame A2 and the second polyester resin frame A5 respectively leave a 0.2mm gap between the anode catalyst layer and the cathode catalyst layer, the two surfaces of the first polyester resin frame A2 and the second polyester resin frame A5 are both provided with hot melt adhesives, and the total thickness is 50 mu m.
The outlines of the first polyester resin frame B3 and the second polyester resin frame B6 are in a shape of Chinese character 'hui'; the area of the outer edge is 440mm multiplied by 180mm, and the area of the inner edge is 332.4mm multiplied by 92.4 mm; the inner edges of the first polyester resin frame B3 and the second polyester resin frame B6 respectively leave a gap of 1mm with the inner edges of the first polyester resin frame A2 and the second polyester resin frame A5, only one surface of the first polyester resin frame B3 and the other surface of the second polyester resin frame B6 contain hot melt adhesive, and the total thickness is 50 mu m.
On a specific tool, the novel sealing process of the fuel cell membrane electrode also relates to the preparation of 5CCM, and the preparation method comprises the following steps:
s11: placing a first polyester resin frame A2 and a second polyester resin frame A5 on two sides of a catalyst coating film 1 to form 3 CCM-A;
s12: then placing the first polyester resin frame B3 and the second polyester resin frame B6 at two sides of the 3CCM-A to form 3 CCM-AB;
s13: and finally, putting the 3CCM-AB into a laminating machine for hot pressing to form 5 CCM.
The first gas diffusion layer 4 and the second gas diffusion layer 7 had an area of 332.4mm × 92.4mm and a thickness of 200 μm.
Example 2:
a novel sealing process of a fuel cell membrane electrode is disclosed, as shown in figures 2-5, for better performing a dispensing treatment; the present embodiment is modified from embodiment 1 as follows: the dispensing machine in the step S1 includes a dispensing mechanism, a driving mechanism for driving the dispensing mechanism to dispense, and a clamp used in cooperation with the dispensing mechanism; the clamp comprises a base 8 and a movable seat 9, the movable seat 9 is installed at the top of the base 8, a longitudinal fixed clamping plate 27 and a transverse fixed clamping plate 22 are fixed on the outer wall of the top of the movable seat 9 through screws, a first fixing plate 19 and a second fixing plate 16 are further fixed on the top of the movable seat 9 through screws, a longitudinal movable clamping plate 18 matched with the longitudinal fixed clamping plate 27 is installed on one side of the first fixing plate 19, a transverse movable clamping plate 17 matched with the transverse fixed clamping plate 22 is installed on one side of the second fixing plate 16, guide rods 20 are fixed on the outer walls of one sides of the longitudinal movable clamping plate 18 and the transverse movable clamping plate 17 through screws, the guide rods 20 are respectively connected to the inner walls of the first fixing plate 19 and the second fixing plate 16 in a sliding mode, and second springs 21 are fixed between the longitudinal movable clamping plate 18 and the first fixing plate 19 and between the transverse movable clamping plate 17 and the second fixing plate 16; one side of each of the longitudinal fixed clamping plate 27, the longitudinal movable clamping plate 18, the transverse fixed clamping plate 22 and the transverse movable clamping plate 17 is provided with a clamping groove 15, and the upper side and the lower side of each clamping groove 15 are provided with arc-shaped guide edges 23; through setting up draw-in groove 15 isotructures, can carry out the point with material card in draw-in groove 15 internal fixation and glue the processing, promoted the practicality.
In order to prevent the material from being scratched, as shown in fig. 2-5, the dispensing mechanism comprises a dispensing head 10, an installation seat 11 is fixed on the outer wall of one side of the dispensing head 10 through a screw, the dispensing head 10 is installed on the driving mechanism through the installation seat 11, an annular seat 25 is fixed on the outer wall of the dispensing head 10 through a fixing rod 26, a sliding ring 24 is connected to the inner wall of the bottom of the annular seat 25 in a sliding manner, a limiting frame 12 is fixed on the outer wall of the top of the movable seat 9 through a screw, and the limiting frame 12 is matched with the sliding ring 24; the bottom of the dispensing head 10 is provided with a glue needle.
A sliding rod 13 is fixed on the outer wall of the top of the base 8 through a screw, the sliding rod 13 is connected to the inner wall of the movable seat 9 in a sliding manner, and a first spring 14 is fixed between the outer wall of the bottom of the movable seat 9 and the outer wall of the top of the base 8; through setting up first spring 14, spacing 12 and slip ring 24 isotructures, can be when gluing, actuating mechanism control dispensing head 10 motion, dispensing head 10 moves down to the dispensing position point and glues, when moving down to a take the altitude, slip ring 24 and spacing 12 contact, glue the needle this moment and just satisfy the demand of gluing to the distance of material, this mode is when gluing, can ensure to glue the needle and reach the distance of material invariable, can prevent effectively that dispensing head 10 descending distance is too big, and lead to gluing the problem of needle fish tail material, the reliability has been promoted.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. A novel sealing process of a fuel cell membrane electrode is characterized in that the fuel cell membrane electrode comprises a catalyst coating membrane (1), wherein the catalyst coating membrane (1) is a 3CCM (carbon nanotube) composed of a proton exchange membrane, an anode catalyst layer and a cathode catalyst layer; the catalyst coating film comprises a catalyst coating film (1), and is characterized in that the top and the bottom of the catalyst coating film (1) are respectively provided with a first polyester resin frame A (2) and a second polyester resin frame A (5), the top of the first polyester resin frame A (2) is provided with a first polyester resin frame B (3), the bottom of the second polyester resin frame A (5) is provided with a second polyester resin frame B (6), the top of the first polyester resin frame B (3) is provided with a first gas diffusion layer (4), and the bottom of the second polyester resin frame B (6) is provided with a second gas diffusion layer (7); the first polyester resin frame A (2), the second polyester resin frame A (5), the first polyester resin frame B (3) and the second polyester resin frame B (6) are provided with positioning holes matched with each other; the sealing step of the fuel cell membrane electrode comprises:
s1: dispensing glue on four sides of the first gas diffusion layer (4) and the second gas diffusion layer (7) by using a glue dispenser;
s2: respectively positioning a first gas diffusion layer (4) and a second gas diffusion layer (7) by using a first terylene resin frame B (3) and a second terylene resin frame B (6);
s3: pressing the structures by using a pressing machine to form 7CCM, and ensuring the position of each positioning hole to be matched before pressing;
s4: and (5) sealing is completed.
2. The novel sealing process for a fuel cell membrane electrode assembly according to claim 1, wherein in said step S1, a hot melt adhesive is used for dispensing, and the width of the hot melt adhesive coating is 1mm and the thickness thereof is 10 μm.
3. The novel sealing process of a fuel cell membrane electrode according to claim 2, characterized in that, in the catalyst coated membrane (1), the proton exchange membrane has an area of 350mm x 110mm and a thickness of 8 μm, and is placed in the center; the anode catalyst layer and the cathode catalyst layer are respectively arranged at the upper side and the lower side of the proton exchange membrane, the areas of the anode catalyst layer and the cathode catalyst layer are both 330mm multiplied by 90mm, the alignment precision of the anode catalyst layer and the cathode catalyst layer is +/-0.1 mm and is positioned at the midpoint of the proton exchange membrane, and the total thickness of the anode catalyst layer and the cathode catalyst layer is 12 mu m.
4. The novel sealing process of the fuel cell membrane electrode according to claim 3, wherein the outlines of the first polyester resin frame A (2) and the second polyester resin frame A (5) are in a shape of Chinese character hui; the area of the outer edge is 440mm multiplied by 180mm, and the area of the inner edge is 330.4mm multiplied by 90.4 mm; the inner edges of the first polyester resin frame A (2) and the second polyester resin frame A (5) respectively leave a gap of 0.2mm with the anode catalyst layer and the cathode catalyst layer, hot melt adhesives are arranged on the two sides of the first polyester resin frame A (2) and the second polyester resin frame A (5), and the total thickness is 50 mu m.
5. The novel sealing process of a fuel cell membrane electrode according to claim 4, wherein the outlines of the first polyester resin frame B (3) and the second polyester resin frame B (6) are in a shape of Chinese character hui; the area of the outer edge is 440mm multiplied by 180mm, and the area of the inner edge is 332.4mm multiplied by 92.4 mm; the inner edges of the first polyester resin frame B (3) and the second polyester resin frame B (6) are respectively spaced from the inner edges of the first polyester resin frame A (2) and the second polyester resin frame A (5) by 1mm, only one side of the first polyester resin frame B (3) and the second polyester resin frame B (6) contains hot melt adhesive, and the total thickness is 50 mu m.
6. The novel sealing process of the fuel cell membrane electrode according to claim 5, characterized in that the novel sealing process of the fuel cell membrane electrode also relates to the preparation of 5CCM, and the preparation method comprises the following steps:
s11: placing a first polyester resin frame A (2) and a second polyester resin frame A (5) on two sides of a catalyst coating membrane (1) to form 3 CCM-A;
s12: then placing the first polyester resin frame B (3) and the second polyester resin frame B (6) at two sides of the 3CCM-A to form 3 CCM-AB;
s13: and finally, putting the 3CCM-AB into a laminating machine for hot pressing to form 5 CCM.
7. The novel sealing process for a fuel cell membrane electrode according to claim 6, characterized in that the first gas diffusion layer (4) and the second gas diffusion layer (7) have an area of 332.4mm x 92.4mm and a thickness of 200 μm.
8. The novel sealing process for a fuel cell membrane electrode according to any one of claims 1 to 7, wherein the dispenser in the step S1 includes a dispensing mechanism, a driving mechanism for driving the dispensing mechanism to dispense, and a jig used in cooperation with the dispensing mechanism; the clamp comprises a base (8) and a movable seat (9), the movable seat (9) is arranged at the top of the base (8), a longitudinal fixed clamping plate (27) and a transverse fixed clamping plate (22) are fixed on the outer wall of the top of the movable seat (9), a first fixing plate (19) and a second fixing plate (16) are fixed on the top of the movable seat (9), a longitudinal movable clamping plate (18) matched with the longitudinal fixed clamping plate (27) is installed on one side of the first fixing plate (19), a transverse movable clamping plate (17) matched with the transverse fixed clamping plate (22) is installed on one side of the second fixing plate (16), guide rods (20) are fixed on the outer walls of one sides of the longitudinal movable clamping plate (18) and the transverse movable clamping plate (17), the guide rods (20) are respectively connected to the inner walls of the first fixing plate (19) and the second fixing plate (16) in a sliding mode, second springs (21) are fixed between the longitudinal movable clamping plate (18) and the first fixing plate (19) and between the transverse movable clamping plate (17) and the second fixing plate (16); one side of the longitudinal fixed clamping plate (27), the longitudinal movable clamping plate (18), the transverse fixed clamping plate (22) and the transverse movable clamping plate (17) is provided with a clamping groove (15), and the upper side and the lower side of the clamping groove (15) are provided with arc-shaped guide edges (23).
9. The novel sealing process of the fuel cell membrane electrode according to claim 8, wherein the dispensing mechanism comprises a dispensing head (10), a mounting seat (11) is fixed on the outer wall of one side of the dispensing head (10), the dispensing head (10) is mounted on the driving mechanism through the mounting seat (11), an annular seat (25) is fixed on the outer wall of the dispensing head (10) through a fixing rod (26), a sliding ring (24) is connected to the inner wall of the bottom of the annular seat (25) in a sliding manner, a limiting frame (12) is fixed on the outer wall of the top of the movable seat (9), and the limiting frame (12) is matched with the sliding ring (24); the bottom of the dispensing head (10) is provided with a glue needle.
10. The novel sealing process of the fuel cell membrane electrode according to claim 9, characterized in that a sliding rod (13) is fixed on the outer wall of the top of the base (8), the sliding rod (13) is slidably connected to the inner wall of the movable seat (9), and a first spring (14) is fixed between the outer wall of the bottom of the movable seat (9) and the outer wall of the top of the base (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111604589.2A CN114464852A (en) | 2021-12-25 | 2021-12-25 | Novel sealing process for fuel cell membrane electrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111604589.2A CN114464852A (en) | 2021-12-25 | 2021-12-25 | Novel sealing process for fuel cell membrane electrode |
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| CN114464852A true CN114464852A (en) | 2022-05-10 |
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| CN202111604589.2A Pending CN114464852A (en) | 2021-12-25 | 2021-12-25 | Novel sealing process for fuel cell membrane electrode |
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| CN (1) | CN114464852A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115020725A (en) * | 2022-06-08 | 2022-09-06 | 安徽明天氢能科技股份有限公司 | Preparation process of long-life membrane electrode |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1232802A2 (en) * | 2001-02-16 | 2002-08-21 | Matsushita Electric Industrial Co., Ltd. | Apparatus and method for applying viscous material |
| JP2003022826A (en) * | 2001-07-06 | 2003-01-24 | Honda Motor Co Ltd | Coating method for sealing material of separator for fuel cell |
| US20150251212A1 (en) * | 2012-10-30 | 2015-09-10 | Mitsubishi Heavy Industries, Ltd. | Sealant applying apparatus and sealant applying method |
| CN207097957U (en) * | 2017-05-04 | 2018-03-13 | 武汉喜玛拉雅光电科技股份有限公司 | A kind of encapsulating structure of fuel cell EMA components |
| CN108054407A (en) * | 2017-12-14 | 2018-05-18 | 周劲 | A kind of sealing structure of fuel cell membrane electrode |
| CN211330067U (en) * | 2019-11-20 | 2020-08-25 | 山东博普光电照明科技有限公司 | Novel glue dispenser is used in LED production |
| CN211929619U (en) * | 2020-04-28 | 2020-11-13 | 北京朔景新能源科技有限公司 | Bipolar plate for fuel cell |
| CN212943783U (en) * | 2020-07-01 | 2021-04-13 | 四川诚亿兴科技有限公司 | Multifunctional dispensing platform for dispensing machine |
| CN213093237U (en) * | 2020-09-29 | 2021-04-30 | 一汽解放汽车有限公司 | Sealing device for preparing membrane electrode of fuel cell |
| CN213357767U (en) * | 2020-09-15 | 2021-06-04 | 安徽明天氢能科技股份有限公司 | Tandem type SPE pure water electrolysis trough and water conservancy diversion net and water conservancy diversion ring thereof |
| CN214515645U (en) * | 2020-12-09 | 2021-10-29 | 东莞市瞳旺电子科技有限公司 | Point gum machine with intelligent control is automatic to be adjusted temperature |
| CN214515677U (en) * | 2021-02-07 | 2021-10-29 | 江西索瑞达智能装备科技有限公司 | Automatic glue dispenser with automatic reference position alignment function |
| CN214717934U (en) * | 2020-12-22 | 2021-11-16 | 春鸿电子科技(重庆)有限公司 | Multi-shaft double-station quick dispenser |
| CN113675425A (en) * | 2021-07-02 | 2021-11-19 | 新源动力股份有限公司 | High-durability membrane electrode structure of proton exchange membrane fuel cell |
| CN214975353U (en) * | 2021-07-29 | 2021-12-03 | 易德思智能科技(无锡)有限公司 | Online visual dispensing tracing device |
-
2021
- 2021-12-25 CN CN202111604589.2A patent/CN114464852A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1232802A2 (en) * | 2001-02-16 | 2002-08-21 | Matsushita Electric Industrial Co., Ltd. | Apparatus and method for applying viscous material |
| JP2003022826A (en) * | 2001-07-06 | 2003-01-24 | Honda Motor Co Ltd | Coating method for sealing material of separator for fuel cell |
| US20150251212A1 (en) * | 2012-10-30 | 2015-09-10 | Mitsubishi Heavy Industries, Ltd. | Sealant applying apparatus and sealant applying method |
| CN207097957U (en) * | 2017-05-04 | 2018-03-13 | 武汉喜玛拉雅光电科技股份有限公司 | A kind of encapsulating structure of fuel cell EMA components |
| CN108054407A (en) * | 2017-12-14 | 2018-05-18 | 周劲 | A kind of sealing structure of fuel cell membrane electrode |
| CN211330067U (en) * | 2019-11-20 | 2020-08-25 | 山东博普光电照明科技有限公司 | Novel glue dispenser is used in LED production |
| CN211929619U (en) * | 2020-04-28 | 2020-11-13 | 北京朔景新能源科技有限公司 | Bipolar plate for fuel cell |
| CN212943783U (en) * | 2020-07-01 | 2021-04-13 | 四川诚亿兴科技有限公司 | Multifunctional dispensing platform for dispensing machine |
| CN213357767U (en) * | 2020-09-15 | 2021-06-04 | 安徽明天氢能科技股份有限公司 | Tandem type SPE pure water electrolysis trough and water conservancy diversion net and water conservancy diversion ring thereof |
| CN213093237U (en) * | 2020-09-29 | 2021-04-30 | 一汽解放汽车有限公司 | Sealing device for preparing membrane electrode of fuel cell |
| CN214515645U (en) * | 2020-12-09 | 2021-10-29 | 东莞市瞳旺电子科技有限公司 | Point gum machine with intelligent control is automatic to be adjusted temperature |
| CN214717934U (en) * | 2020-12-22 | 2021-11-16 | 春鸿电子科技(重庆)有限公司 | Multi-shaft double-station quick dispenser |
| CN214515677U (en) * | 2021-02-07 | 2021-10-29 | 江西索瑞达智能装备科技有限公司 | Automatic glue dispenser with automatic reference position alignment function |
| CN113675425A (en) * | 2021-07-02 | 2021-11-19 | 新源动力股份有限公司 | High-durability membrane electrode structure of proton exchange membrane fuel cell |
| CN214975353U (en) * | 2021-07-29 | 2021-12-03 | 易德思智能科技(无锡)有限公司 | Online visual dispensing tracing device |
Non-Patent Citations (1)
| Title |
|---|
| 殷骏 等, 《汽车技术》质子交换膜燃料电池一体化密封设计与仿真, no. 11, pages 15 - 21 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115020725A (en) * | 2022-06-08 | 2022-09-06 | 安徽明天氢能科技股份有限公司 | Preparation process of long-life membrane electrode |
| CN115020725B (en) * | 2022-06-08 | 2023-08-22 | 安徽明天氢能科技股份有限公司 | Preparation process of long-life membrane electrode |
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