Five-in-one laminating equipment for membrane electrode of fuel cell

Abstract

The utility model discloses fuel cell membrane electrode five-in-one laminating equipment which comprises a proton exchange membrane, the proton exchange membrane is conveyed through a roll shaft structure, an anode spraying pipe is arranged above the proton exchange membrane, a cathode spraying pipe is arranged below the proton exchange membrane, a transfer printing membrane is conveyed below the cathode spraying pipe through the roll shaft structure, and the transfer printing membrane is arranged below the anode spraying pipe. A transfer printing hot pressing roller is arranged below the transfer printing film, the anode spraying pipe sprays on the proton exchange film to form an anode catalyst layer, the cathode spraying pipe sprays on the transfer printing film to form a cathode catalyst layer, and the cathode catalyst layer can be subjected to hot pressing transfer printing at the cathode end of the proton exchange film under the action of the transfer printing hot pressing roller. Gas exchange layers are arranged behind the transfer printing membrane in a conveying manner through a roller shaft structure, the gas exchange layers are symmetrically distributed above and below the proton exchange membrane, and hot-pressing laminating rollers are arranged on the outer sides of the gas exchange layers, so that the integrated operation of the fuel cell membrane electrode during laminating can be realized, and the operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to membrane electrode processing technical field more specifically, it relates to a kind of fuel cell membrane electrode five-in-one laminating equipment. BACKGROUND

[0002] Membrane electrode is the vital component in fuel cell, it is composed of proton exchange membrane and two side electrode (anode and cathode). The main function of membrane electrode is to promote electrochemical reaction, and convert chemical energy into electrical energy.

[0003] Among them, anode includes anode catalytic layer and anode gas exchange layer, cathode includes cathode catalytic layer and cathode gas exchange layer, anode catalytic layer and cathode catalytic layer are formed by catalyst spraying;

[0004] In prior art, when realizing the processing of fuel cell membrane electrode, the laminating processing of one side electrode is needed first, then the processing of the other side electrode is carried out by turning over, in this process, turning over operation is needed, and the integrated operation of fuel cell in the processing process cannot be realized, which affects the processing efficiency and effect. UTILITY MODEL CONTENT

[0005] (I) technical problem solved

[0006] In view of the problems existing in the prior art, the utility model provides a kind of fuel cell membrane electrode five-in-one laminating equipment to solve the technical problem that the integrated operation effect of fuel cell membrane electrode laminating equipment in prior art mentioned in background art is poor, which affects the processing efficiency and effect.

[0007] (II) technical scheme

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0009] A kind of fuel cell membrane electrode five-in-one laminating equipment, including proton exchange membrane, the proton exchange membrane is conveyed by roller structure, the upper of the proton exchange membrane is provided with anode spraying pipe, and the lower is provided with cathode spraying pipe, the lower of the cathode spraying pipe is provided with transfer film by roller structure conveying, the lower of the transfer film is provided with transfer hot press roller, the anode spraying pipe is sprayed to form anode catalytic layer on the proton exchange membrane, and the cathode spraying pipe is sprayed to form cathode catalytic layer on the transfer film, the cathode catalytic layer can be hot-pressed and transferred on the cathode end of the proton exchange membrane under the action of transfer hot press roller, the rear of the transfer film is provided with gas exchange layer by roller structure conveying, the gas exchange layer is symmetrically distributed on the upper and lower of the proton exchange membrane, the outside of the gas exchange layer is provided with hot-press laminating roller.

[0010] The utility model further sets up, the end of proton exchange membrane, the end of transfer printing film and the end of gas exchange layer all are provided with unwinding roller, and all are provided with winding roller, realize the unwinding and winding of proton exchange membrane, transfer printing film and gas exchange layer.

[0011] The utility model further sets up, still include frame, the unwinding roller and winding roller all are installed on the frame, be used for integral mounting support.

[0012] The utility model further sets up, be provided with electric push rod on the frame, the output of electric push rod is provided with mounting bracket, transfer printing hot press roller and hot press laminating roller are installed on corresponding mounting bracket respectively, realize the lifting drive of transfer printing hot press roller and hot press laminating roller.

[0013] The utility model further sets up, be provided with guide roller on the frame with transfer printing film and gas exchange layer respectively, realize the laminating guide between transfer printing film and gas exchange layer and proton exchange membrane, realize the stable guide when transfer printing film and gas exchange layer and proton exchange membrane laminating.

[0014] The utility model further sets up, be provided with resist pressing roller on the frame with transfer printing hot press roller, improve the stability and load bearing stress when transfer printing hot press roller operation.

[0015] The utility model further sets up, be provided with tensioning roller on the frame with proton exchange membrane, improve the tensioning of proton exchange membrane in the conveying process.

[0016] The utility model further sets up, the upper portion of anode catalytic layer and cathode catalytic layer all are provided with drying group with cooperation, be used for the drying after anode catalytic layer and cathode catalytic layer spray finish.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a kind of fuel cell membrane electrode five-in-one laminating equipment, with following beneficial effects:

[0019] 1. In use, this utility model allows for the spraying of an anode catalyst onto the surface of a proton exchange membrane via an anode spraying pipe to form an anode catalytic layer. Simultaneously, a cathode catalyst is sprayed onto the surface of a transfer film via a cathode spraying pipe. Then, as the transfer film carrying the cathode catalyst passes through a transfer hot press roller, the cathode catalyst sprayed on the transfer film is transferred to the cathode end of the proton exchange membrane under the action of the transfer hot press roller, forming a cathode catalytic layer. During this process, the guide roller ensures stable adhesion between the transfer film carrying the cathode catalyst and the proton exchange membrane. At the same time, the pressure roller ensures stable adhesion between the cathode catalyst and the proton exchange membrane during the transfer process. After adhesion, the cathode catalytic layer and the transfer film are effectively separated. The separated transfer film is then wound up by a corresponding take-up roller.

[0020] 2. Subsequently, the proton exchange membrane carries the anode catalyst layer and the cathode catalyst layer forward to the gas exchange layer position. Here, the gas exchange layer is preferably made of carbon paper material. Under the action of the hot-pressing bonding roller, the gas exchange layer can be hot-pressed and bonded with the corresponding anode catalyst layer and cathode catalyst layer, thereby realizing the five-in-one bonding of the fuel cell membrane electrode.

[0021] 3. This utility model can realize the integrated operation of membrane electrode during the processing, reduce the flipping operation during the bonding process, improve the processing efficiency of membrane electrode production, and improve the five-in-one bonding effect of membrane electrode. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a five-in-one membrane electrode bonding device for fuel cells according to this utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall operating structure of this utility model. Figure 1 ;

[0024] Figure 3 This is a front view schematic diagram of the overall operating structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the five-in-one membrane electrode after the bonding is completed in this utility model;

[0026] Figure 5 This is a schematic diagram of the connection structure between the electric push rod, the mounting frame, and the hot-pressing bonding roller in this utility model.

[0027] In the figure: 1, proton exchange membrane; 2, anode spray pipe; 3, cathode spray pipe; 4, transfer film; 5, transfer hot pressing roller; 6, anode catalytic layer; 7, cathode catalytic layer; 8, gas exchange layer; 9, hot pressing lamination roller; 10, unwinding roller; 11, winding roller; 12, rack; 13, electric push rod; 14, mounting frame; 15, guide roller; 16, pressing roller; 17, tensioning roller; 18, drying group. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0030] In the present application, unless otherwise stated, the directions used such as "up, down" are generally with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for the convenience of understanding and description, "left, right" are generally with respect to the left and right shown in the drawings; "inner, outer" refer to the inner and outer with respect to the contour of each component itself, but the above directional words are not used to limit the present application.

[0031] Please refer to Figures 1-5 A fuel cell membrane electrode five-in-one lamination device, comprising a proton exchange membrane 1, the proton exchange membrane 1 is conveyed through a roller structure, an anode spray pipe 2 is arranged above the proton exchange membrane 1, and a cathode spray pipe 3 is arranged below the proton exchange membrane 1, a transfer film 4 is arranged below the cathode spray pipe 3 through a roller structure conveying, a transfer hot pressing roller 5 is arranged below the transfer film 4, an anode catalytic layer 6 is formed on the proton exchange membrane 1 by spraying through the anode spray pipe 2, and a cathode catalytic layer 7 is formed on the transfer film 4 by spraying through the cathode spray pipe 3, the cathode catalytic layer 7 can be hot pressed and transferred on the cathode end of the proton exchange membrane under the action of the transfer hot pressing roller 5, a gas exchange layer 8 is arranged behind the transfer film 4 through a roller structure conveying, the gas exchange layer 8 is symmetrically distributed above and below the proton exchange membrane 1, and a hot pressing lamination roller 9 is arranged outside the gas exchange layer 8.

[0032] Please refer to Figures 1-5 As an embodiment of the fuel cell membrane electrode five-in-one lamination device: the end of the proton exchange membrane 1, the end of the transfer film 4 and the end of the gas exchange layer 8 are all provided with an unwinding roller 10, and the tail end is provided with a winding roller 11.

[0033] Specifically, the unwinding and synchronous winding of the proton exchange membrane 1, the transfer film 4 and the gas exchange layer 8 can be realized through the cooperation of the unwinding roller 10 and the winding roller 11, wherein the specific mounting structure of the unwinding roller 10 and the winding roller 11 is the prior known technology, which is not described herein.

[0034] Please refer to Figures 1-5 As an embodiment of the fuel cell membrane electrode five-in-one laminating equipment, the unwinding roller 10 and the winding roller 11 are mounted on the rack 12.

[0035] Specifically, the overall stable mounting support is realized through the rack 12.

[0036] Please refer to Figures 1-5 As an embodiment of the transfer hot pressing roller 5 and the hot pressing laminating roller 9, the rack 12 is provided with an electric push rod 13, the output end of the electric push rod 13 is provided with a mounting frame 14, and the transfer hot pressing roller 5 and the hot pressing laminating roller 9 are respectively mounted on the corresponding mounting frame 14.

[0037] Specifically, the lifting control of the transfer hot pressing roller 5 and the hot pressing laminating roller 9 can be realized through the cooperation of the electric push rod 13 and the mounting frame 14, and the overall use flexibility is improved.

[0038] Please refer to Figures 1-5 As an embodiment of the transfer film 4 and the gas exchange layer 8, the rack 12 is provided with a guide roller 15 matched with the transfer film 4 and the gas exchange layer 8 respectively, so as to realize the laminating guide between the transfer film 4 and the gas exchange layer 8 and the proton exchange membrane 1.

[0039] Specifically, the stable guide conveying of the transfer film 4 and the gas exchange layer 8 can be realized through the guide roller 15.

[0040] Please refer to Figures 1-5 As an embodiment of the rack 12, the rack 12 is provided with a pressing roller 16 matched with the transfer hot pressing roller 5.

[0041] Specifically, the stability during hot pressing transfer can be improved through the setting of the pressing roller 16.

[0042] Please refer to Figures 1-5 As an embodiment of the rack 12, the rack 12 is provided with a tensioning roller 17 matched with the proton exchange membrane 1.

[0043] Specifically, the tensioning stability of the proton exchange membrane 1 during conveying can be improved through the setting of the tensioning roller 17.

[0044] Please refer to Figures 1-5As an embodiment of the fuel cell membrane electrode five-in-one laminating device: the anode catalytic layer 6 and the cathode catalytic layer 7 are both matched with the drying group 18.

[0045] Specifically, through the setting of the drying group 18, the anode catalytic layer 6 and the cathode catalytic layer 7 can be dried after spraying the catalyst.

[0046] In summary:

[0047] The utility model discloses in using, can through anode spraying pipe 2 with the anode catalyst is sprayed on the surface of proton exchange membrane and forms anode catalytic layer 6, simultaneously, through cathode spraying pipe 3 with the cathode catalyst is sprayed on the surface of transfer printing film 4;

[0048] Among them, the spraying of the anode catalyst and the cathode catalyst adopts ultrasonic spraying method, which is a new type of fuel cell membrane electrode preparation method, can accurately control the thickness of the catalytic layer, and ensure that the sprayed catalytic layer has excellent uniformity.

[0049] The preparation of the membrane electrode by the ultrasonic spraying method mainly includes the following two steps:

[0050] (1) prepare the catalyst slurry by ultrasonic dispersion method;

[0051] (2) atomize and spray the catalyst slurry on the support (transfer printing film 4 or proton exchange membrane 1) under ultrasonic condition;

[0052] The carbon microporous layer and the catalytic layer are prepared by using the ultrasonic spraying technology, and the repeatability, slurry utilization rate and uniformity of spraying are verified; the average utilization rate of the slurry is higher than 85%, which is much higher than the slurry utilization rate of other spraying technologies.

[0053] The advantages of the ultrasonic spraying method are:

[0054] (1) by optimizing the power and frequency of the ultrasonic nozzle, the rebound of the atomized catalyst slurry is small and it is not easy to overspray, and the utilization rate of the catalyst is improved;

[0055] (2) the ultrasonic vibration rod makes the catalyst particles highly dispersed, and the ultrasonic dispersion injector has a secondary stirring effect on the catalyst slurry, greatly reducing the probability of chemical contamination of platinum and reduction of the reaction active area:

[0056] (3) simple operation, high automation, suitable for batch production of membrane electrodes;

[0057] After spraying, the anode catalytic layer 6 formed by the anode catalyst and the cathode catalytic layer 7 formed by the cathode catalyst can be dried by the drying group 18, wherein the drying method can adopt the hot air drying, infrared drying and other methods commonly used in the prior art;

[0058] After that, the transfer film 4 will carry the cathode catalyst through the transfer hot press roller 5, under the action of the transfer hot press roller 5, the cathode catalyst sprayed on the transfer film 4 can be transferred to the cathode end of the proton exchange film 1 and form a cathode catalyst layer 7, in this process, the setting of the guide roller 15 can ensure the stable fit between the transfer film 4 carrying the cathode catalyst and the proton exchange film 1, at the same time, the setting of the pressing roller 16 can ensure the stable fit between the cathode catalyst and the proton exchange film 1 during the transfer process, and after the fit, the effective separation between the cathode catalyst layer 7 and the transfer film 4 is realized, wherein the separated transfer film 4 is wound by the corresponding winding roller 11;

[0059] After that, the proton exchange film 1 will carry the anode catalyst layer 6 and the cathode catalyst layer 7 to continue to move to the gas exchange layer 8 position, at this position, the gas exchange layer 8 preferably adopts carbon paper material, under the action of the hot press fit roller 9, the gas exchange layer 8 can be hot-pressed and fitted between the corresponding anode catalyst layer 6 and the cathode catalyst layer 7, so as to realize the five-in-one fit of the fuel cell membrane electrode;

[0060] The utility model discloses can realize the integrated operation of membrane electrode in the processing process, reduce the turning operation in the fit process, improve the processing efficiency in the membrane electrode production process, improve the five-in-one fit effect of membrane electrode.

[0061] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model. The scope of the utility model is defined by the appended claims and their equivalents;

[0062] In all the above-mentioned solutions, the electrical components are operated. If there is no explicit description, they are controlled by the controller. Since the controller is matched with common devices, its control principle and circuit connection belong to existing known and mature technology, and its electrical connection relationship and specific circuit structure will not be described here.

[0063] In all the above-mentioned solutions, the motor is involved. If necessary, it can be matched with a speed reducer. The connection structure between the motor and the speed reducer and the working principle are existing known technology, which will not be described here.

[0064] In all the above-mentioned schemes, the solar panel is connected with the battery, and the necessary accessories such as the inverter, the battery charging controller, the cable and the fuse, and the support, etc. The control principle and the line connection are all known and mature technologies, and the electrical connection relationship and the specific circuit structure are not described here.

Claims

1. A fuel cell membrane electrode five-in-one lamination apparatus comprising a proton exchange membrane (1), characterized in that: The proton exchange membrane (1) is conveyed by a roller structure, an anode spraying pipe (2) is arranged above the proton exchange membrane (1), and a cathode spraying pipe (3) is arranged below the proton exchange membrane (1), a transfer film (4) is arranged below the cathode spraying pipe (3) and conveyed by a roller structure, a transfer hot pressing roller (5) is arranged below the transfer film (4), the anode spraying pipe (2) sprays to form an anode catalytic layer (6) on the proton exchange membrane (1), and the cathode spraying pipe (3) sprays to form a cathode catalytic layer (7) on the transfer film (4), the cathode catalytic layer (7) can be hot pressed and transferred on the cathode end of the proton exchange membrane (1) under the action of the transfer hot pressing roller (5), a gas exchange layer (8) is arranged behind the transfer film (4) and conveyed by a roller structure, the gas exchange layer (8) is symmetrically arranged above and below the proton exchange membrane (1), and a hot pressing lamination roller (9) is arranged outside the gas exchange layer (8).

2. The fuel cell membrane electrode five-in-one lamination apparatus according to claim 1, characterized by: The end of the proton exchange membrane (1), the end of the transfer film (4) and the end of the gas exchange layer (8) are all provided with an unwinding roller (10), and the tail end is provided with a winding roller (11).

3. The fuel cell membrane electrode five-in-one lamination apparatus of claim 2, wherein: Further comprising a rack (12), the unwinding roller (10) and the winding roller (11) are both mounted on the rack (12).

4. The fuel cell membrane electrode five-in-one lamination apparatus of claim 3, wherein: An electric push rod (13) is arranged on the rack (12), an installation frame (14) is arranged on the output end of the electric push rod (13), and the transfer hot pressing roller (5) and the hot pressing lamination roller (9) are respectively mounted on the corresponding installation frame (14).

5. The fuel cell membrane electrode five-in-one lamination apparatus of claim 3, wherein: A guide roller (15) is arranged on the rack (12) to realize the lamination and guidance between the transfer film (4) and the gas exchange layer (8) and the proton exchange membrane (1).

6. The fuel cell membrane electrode five-in-one lamination apparatus of claim 5, wherein: A pressing roller (16) is arranged on the rack (12) to match the transfer hot pressing roller (5).

7. The fuel cell membrane electrode five-in-one lamination apparatus of claim 6, wherein: A tensioning roller (17) is arranged on the rack (12) to match the proton exchange membrane (1).

8. The fuel cell membrane electrode five-in-one lamination apparatus of claim 1, wherein: An oven group (18) is arranged above the anode catalytic layer (6) and the cathode catalytic layer (7).

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