Membrane electrode packaging structure
By using positioning pins and adhesive layers in the membrane electrode packaging structure, the problem of high difficulty in positioning and aligning membrane electrode components in the prior art is solved, and a more efficient and stable packaging process is achieved.
Patent Information
- Application Number
- CN202510869605.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2025-09-16
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing membrane electrode packaging methods, the various membrane electrode components need to be positioned and bonded multiple times, which makes positioning and alignment difficult and affects packaging efficiency and quality.
A membrane electrode package structure is used, including a base, a positioning frame, a proton exchange membrane, a catalyst layer, and a gas diffusion layer. The positioning frame and the gas diffusion layer are positioned by first and second positioning pins, and an adhesive layer is used to achieve stable connection between the components.
The difficulty of positioning and aligning the various components of the membrane electrode is reduced, the packaging efficiency and quality are improved, and the hot pressing time requirement is reduced by using heating wires.
Smart Images
Figure CN120657164A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of membrane electrode packaging, in particular to a membrane electrode packaging structure. Background Art
[0002] Fuel cells are a clean and efficient energy conversion technology that plays an important role in the clean energy system. The membrane electrode assembly (MEA) is the core component of the fuel cell, and its quality directly determines the overall performance of the fuel cell. During the preparation of the membrane electrode assembly, the packaging process determines the overall performance of the membrane electrode by affecting parameters such as the sealing and mechanical stability of the membrane electrode. There is no doubt that advanced packaging structure is crucial to obtaining excellent battery performance.
[0003] The current packaging method for a seven-in-one membrane electrode is as follows: first, the anode catalyst layer and the cathode catalyst layer are sprayed on both sides of the proton exchange membrane to prepare a CCM, then the CCM is sealed using the cathode frame and the anode frame with glue, and finally the anode and cathode gas diffusion layers are bonded to the frame to form a membrane electrode. However, the membrane electrode components in the above packaging method need to be positioned and bonded multiple times, and the positioning and alignment between the components are relatively difficult. To this end, we provide a membrane electrode packaging structure to solve the above problems. Summary of the Invention
[0004] The purpose of the present invention is to remedy the deficiencies of the prior art and to provide a membrane electrode packaging structure that can package the membrane electrode and reduce the difficulty of positioning and aligning the various components of the membrane electrode.
[0005] To solve the above problems, the present invention provides the following technical solutions: a membrane electrode packaging structure, comprising a base, wherein four first positioning pins are fixedly connected to the upper surface of the base, and a positioning frame is provided on the upper surface of the base which is slidably connected to the first positioning pins at corresponding positions, a proton exchange membrane is provided inside the positioning frame, and the upper surface and bottom surface of the proton exchange membrane are respectively covered with an anode catalyst layer and a cathode catalyst layer, and the grooves on the upper surface and the bottom surface of the positioning frame are respectively pasted with a first adhesive layer and a second adhesive layer, and an anode gas diffusion layer and a cathode gas diffusion layer are provided inside the positioning frame, and the first adhesive layer and the second adhesive layer are respectively pasted to the anode gas diffusion layer and the cathode gas diffusion layer.
[0006] Furthermore, a plurality of second positioning pins are fixedly connected to the inner wall of the positioning frame, and both the anode gas diffusion layer and the cathode gas diffusion layer are slidably connected to the second positioning pins.
[0007] Furthermore, the positioning frame is made of one of rubber, silicone, polyethylene, polypropylene, PET or polyurethane.
[0008] The beneficial effect of adopting the above further solution is that the user can change the material of the positioning frame according to actual needs, thereby improving the convenience and inventiveness of use.
[0009] Furthermore, the anode catalyst layer and the cathode catalyst layer can be respectively covered on the upper surface and the bottom surface of the proton exchange membrane by spraying, direct coating or transfer printing.
[0010] The beneficial effect of adopting the above further solution is that users can choose the way to cover the anode catalyst layer and the cathode catalyst layer on the proton exchange membrane according to actual needs, thereby improving the convenience and inventiveness of use.
[0011] Furthermore, the first adhesive layer and the second adhesive layer both use a positioning frame and a proton exchange membrane material amphiphilic adhesive that is resistant to high and low temperatures, acid, and hydrolysis.
[0012] The beneficial effect of adopting the above further solution is that the first adhesive layer and the second adhesive layer can maintain viscosity in high and low temperature environments, acidic environments and hydrolysis environments, and avoid affecting the connection stability between the positioning frame and the proton exchange membrane.
[0013] Furthermore, a heating wire for heating the membrane electrode package is installed on the inner wall of the base, and a control button electrically connected to the heating wire is installed on the front of the base.
[0014] The beneficial effect of adopting the above further solution is that by pressing the control button, the working state of the heating wire can be controlled, and the heat generated by the heating wire when it is working can be used to keep the components in a heated state during the membrane electrode packaging process, thereby reducing the time required for subsequent hot pressing.
[0015] Furthermore, a battery is fixedly connected to the inner wall of the base, and the heating wire and the control button are electrically connected to the battery.
[0016] The beneficial effect of adopting the above further solution is that by providing a battery, the electrical components in the membrane electrode package structure can be powered, thereby eliminating the need to constantly connect to an external power source via wires, thereby improving convenience during use.
[0017] Furthermore, a charging interface for charging the battery is installed on the front of the base.
[0018] The beneficial effect of adopting the above further solution is that by providing a charging interface, the battery can be conveniently charged, and the battery can be a Type-C interface, thereby improving convenience during use.
[0019] Furthermore, a nameplate for recording the manufacturer of the membrane electrode packaging structure and technical data under rated working conditions is fixedly connected to the front of the base.
[0020] The beneficial effect of adopting the above further solution is that, by providing a nameplate, the manufacturer of the membrane electrode packaging structure and the technical data under rated working conditions can be recorded.
[0021] Compared with the existing technology, the membrane electrode packaging structure has the following beneficial effects:
[0022] 1. The present invention prepares a CCM by covering the anode catalyst layer and the cathode catalyst layer on the upper surface and the bottom surface of the proton exchange membrane respectively, and uses the first adhesive layer and the second adhesive layer to attach the anode gas diffusion layer and the cathode gas diffusion layer to the outer surface of the CCM to complete the packaging. The positions of the anode gas diffusion layer and the cathode gas diffusion layer are positioned by the second positioning pins, and the positioning frame is positioned by the first positioning pins, thereby reducing the difficulty of positioning and aligning the various components of the membrane electrode.
[0023] 2. The present invention provides a heating wire to keep each component in a heated state during the membrane electrode packaging process, thereby reducing the time required for subsequent hot pressing. By providing a control button, the working state of the heating wire can be conveniently controlled. By providing a battery, the electrical components in the membrane electrode packaging structure can be powered. By providing a charging interface, the battery can be conveniently charged. By providing a nameplate, the manufacturer of the membrane electrode packaging structure and the technical data under rated working conditions can be recorded. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a front view of the three-dimensional structure of the overall device of the present invention;
[0025] Figure 2 It is a side view of the three-dimensional structure of the overall device of the present invention;
[0026] Figure 3 This is a partial structural section of the present invention Figure 1 ;
[0027] Figure 4 This is a schematic diagram of the connection between the positioning frame and the second positioning pin structure of the present invention;
[0028] Figure 5 This is a partial structural section of the present invention Figure 2 ;
[0029] Figure 6 It is a schematic diagram of the explosion of the local structure of the present invention.
[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0031] 1. Base; 2. First positioning pin; 3. Positioning frame; 4. Proton exchange membrane; 5. Anode catalyst layer; 6. Cathode catalyst layer; 7. First adhesive layer; 8. Second adhesive layer; 9. Anode gas diffusion layer; 10. Cathode gas diffusion layer; 11. Heating wire; 12. Battery; 13. Control button; 14. Charging port; 15. Nameplate; 16. Second positioning pin. DETAILED DESCRIPTION
[0032] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.
[0033] It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integrated structures. Those skilled in the art will understand the specific meanings of such terms in this patent based on specific circumstances.
[0034] As described in the background technology, in the current seven-in-one membrane electrode packaging method, the membrane electrode components need to be positioned and bonded multiple times, and the positioning and alignment between the components are difficult. For this reason, this embodiment provides a membrane electrode packaging structure, which can package the membrane electrode and reduce the difficulty of positioning and alignment between the membrane electrode components.
[0035] See also Figure 1 - Figure 6 This embodiment proposes a membrane electrode packaging structure, including a base 1, four first positioning pins 2 are fixedly connected to the upper surface of the base 1, and a positioning frame 3 is provided on the upper surface of the base 1, which is slidably connected to the first positioning pins 2 at corresponding positions. A proton exchange membrane 4 is provided inside the positioning frame 3, and the upper surface and bottom surface of the proton exchange membrane 4 are respectively covered with an anode catalyst layer 5 and a cathode catalyst layer 6.
[0036] The positioning frame 3 can be positioned using the first positioning pin 2 fixed to the upper surface of the base 1, thereby avoiding the possibility of positional displacement during the subsequent packaging process. The anode catalyst layer 5 and the cathode catalyst layer 6 can be respectively covered on the upper surface and the bottom surface of the proton exchange membrane 4, thereby preparing a CCM.
[0037] A heating wire 11 for heating the membrane electrode package is installed on the inner wall of the base 1, and a control button 13 electrically connected to the heating wire 11 is installed on the front of the base 1. By pressing the control button 13, the working state of the heating wire 11 can be controlled, and the heat generated by the heating wire 11 when it is working can be used to keep the components in a heated state during the membrane electrode package process, so as to reduce the time required for subsequent hot pressing.
[0038] A battery 12 is fixedly connected to the inner wall of the base 1, and the heating wire 11 and the control button 13 are both electrically connected to the battery 12. By providing the battery 12, the electrical components in the membrane electrode packaging structure can be powered, so there is no need to connect to an external power source through wires at all times, thereby improving convenience during use.
[0039] A charging interface 14 for charging the battery 12 is installed on the front of the base 1. By setting the charging interface 14, the battery 12 can be conveniently charged, and the battery 12 can be a Type-C interface, thereby improving convenience during use.
[0040] The positioning frame 3 is made of one of rubber, silicone, polyethylene, polypropylene, PET or polyurethane. Users can change the material of the positioning frame 3 according to actual needs, thereby improving convenience and inventiveness during use.
[0041] The anode catalyst layer 5 and the cathode catalyst layer 6 can be respectively covered on the upper surface and the bottom surface of the proton exchange membrane 4 by spraying, direct coating or transfer printing. The user can choose the method of covering the anode catalyst layer 5 and the cathode catalyst layer 6 on the proton exchange membrane 4 according to actual needs, thereby improving the convenience and inventiveness of use.
[0042] The grooves on the upper surface and the bottom surface of the positioning frame 3 are respectively pasted with a first adhesive layer 7 and a second adhesive layer 8. An anode gas diffusion layer 9 and a cathode gas diffusion layer 10 are provided inside the positioning frame 3, and the first adhesive layer 7 and the second adhesive layer 8 are respectively pasted to the anode gas diffusion layer 9 and the cathode gas diffusion layer 10. A plurality of second positioning pins 16 are fixedly connected to the inner wall of the positioning frame 3, and the anode gas diffusion layer 9 and the cathode gas diffusion layer 10 are both slidably connected to the second positioning pins 16.
[0043] The first adhesive layer 7 and the second adhesive layer 8 are respectively pasted in the grooves provided on the upper surface and the bottom surface of the positioning frame 3, and can be pasted to the anode gas diffusion layer 9 and the cathode gas diffusion layer 10 respectively to achieve connection with the CCM. At the same time, the components can be squeezed to complete the packaging of the membrane electrode.
[0044] The first adhesive layer 7 and the second adhesive layer 8 both use an amphiphilic adhesive for the positioning frame 3 and the proton exchange membrane 4 materials that is resistant to high and low temperatures, acid, and hydrolysis. This allows the first adhesive layer 7 and the second adhesive layer 8 to remain sticky in high and low temperature environments, acidic environments, and hydrolytic environments, and avoids affecting the connection stability of the positioning frame 3 and the proton exchange membrane 4.
[0045] A nameplate 15 for recording the manufacturer of the membrane electrode package structure and technical data under rated working conditions is fixedly connected to the front of the base 1. By setting the nameplate 15, the manufacturer of the membrane electrode package structure and technical data under rated working conditions can be recorded.
[0046] The components in the drawings of the present invention are only for reference in style and are not for specific size standards. The specific sizes are determined according to the actual requirements of production. At the same time, the materials of the components can be replaced accordingly according to actual needs.
[0047] The electrical components in the present invention are all conventional devices purchased on the market and known to those skilled in the art. The models can be selected or customized according to actual needs. For those skilled in the art, their setting methods, installation methods and electrical connection methods only need to be debugged according to the requirements of their instruction manuals, and will not be described in detail here.
[0048] Working principle: When using the membrane electrode packaging structure, the anode catalyst layer 5 and the cathode catalyst layer 6 can be respectively covered on the upper surface and bottom surface of the proton exchange membrane 4 by spraying, direct coating or transfer printing, so as to prepare a CCM, and the second adhesive layer 8 is pasted in the groove on the bottom surface of the positioning frame 3, and then the CCM is inserted into the reserved groove on the positioning frame 3 to achieve the closure of the bottom surface of the CCM, and the cathode gas diffusion layer 10 can be positioned by the second positioning pin 16 fixed in the groove on the bottom surface of the positioning frame 3, and the positioning frame 3 can be positioned by the first positioning pin 2 fixed on the base 1 at the same time, and then the CCM upper surface can be closed by the first adhesive layer 7 pasted in the groove on the upper surface of the positioning frame 3, and the anode gas diffusion layer 9 can be positioned by the second positioning pin 16 fixed in the groove on the upper surface of the positioning frame 3, and then the various components of the membrane electrode can be squeezed to achieve stable packaging of the membrane electrode.
[0049] It should be noted that, in this article, the terms "include", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. Unless otherwise expressly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0050] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.
[0051] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.
Claims
1. A membrane electrode package structure, characterized in that: The invention comprises a base (1), wherein the upper surface of the base (1) is fixedly connected with four first positioning pins (2), the upper surface of the base (1) is provided with a positioning frame (3) slidably connected with the first positioning pins (2) at corresponding positions, a proton exchange membrane (4) is provided inside the positioning frame (3), the upper surface and the bottom surface of the proton exchange membrane (4) are respectively covered with an anode catalyst layer (5) and a cathode catalyst layer (6), the grooves on the upper surface and the bottom surface of the positioning frame (3) are respectively pasted with a first pasting layer (7) and a second pasting layer (8), the inner surface of the positioning frame (3) is provided with an anode gas diffusion layer (9) and a cathode gas diffusion layer (10), and the first pasting layer (7) and the second pasting layer (8) are respectively pasted with the anode gas diffusion layer (9) and the cathode gas diffusion layer (10).
2. The membrane electrode package structure according to claim 1, characterized in that: A plurality of second positioning pins (16) are fixedly connected to the inner wall of the positioning frame (3), and both the anode gas diffusion layer (9) and the cathode gas diffusion layer (10) are slidably connected to the second positioning pins (16).
3. The membrane electrode package structure according to claim 1, wherein: The positioning frame (3) is made of one of rubber, silica gel, polyethylene, polypropylene, PET or polyurethane.
4. The membrane electrode package structure according to claim 1, wherein: The anode catalyst layer (5) and the cathode catalyst layer (6) can be respectively covered on the upper surface and the bottom surface of the proton exchange membrane (4) by spraying, direct coating or transfer printing.
5. The membrane electrode package structure according to claim 1, characterized in that: The first adhesive layer (7) and the second adhesive layer (8) both use a high-low temperature resistant, acid resistant, and hydrolysis resistant positioning frame (3) and proton exchange membrane (4) material amphiphilic adhesive.
6. The membrane electrode package structure according to claim 1, characterized in that: A heating wire (11) for heating the membrane electrode package is installed on the inner wall of the base (1), and a control button (13) electrically connected to the heating wire (11) is installed on the front of the base (1).
7. The membrane electrode package structure according to claim 6, characterized in that: A battery (12) is fixedly connected to the inner wall of the base (1), and the heating wire (11) and the control button (13) are both electrically connected to the battery (12).
8. The membrane electrode package structure according to claim 7, characterized in that: A charging interface (14) for charging the battery (12) is installed on the front of the base (1).
9. The membrane electrode package structure according to claim 1, characterized in that: A nameplate (15) for recording the manufacturer of the membrane electrode packaging structure and technical data under rated working conditions is fixedly connected to the front of the base (1).