Electrolytic water film electrode roll-to-roll packaging system

Abstract

The utility model discloses an electrolytic water film electrode roll pair face packaging system, including platform, platform has ferromagnetism, two gaskets, two gaskets have magnetism, form the recess of both ends in the open -mouthed shape on platform top surface, seal frame film, seal frame film sets up in the recess, catalyst coating film, catalyst coating film is clamped in seal frame film, and catalyst coating film is provided with active area, pressboard, pressboard has magnetism, and pressboard is with platform magnetic suction cooperation, and pressboard is used for fixing the both ends of seal frame film in the recess, rubber roller, rubber roller sets up above platform, and rubber roller is used for heat roll pressure to the seal frame film of clamping having catalyst coating film. The recess is formed on the platform top surface through the setting of the gasket with magnetic force in this application, can accurately position seal frame film and catalyst coating film to seal frame film and catalyst coating film quickly, and simultaneously, through setting rubber roller cooperation platform forms the pressing method of roll pair face, and it is not easy to cause the fold of film electrode, thereby improves the quality of film electrode product.

Description

Technical Field

[0001] This utility model relates to the field of fuel cell technology, and in particular to an electrolytic water membrane electrode roller-to-surface encapsulation system. Background Technology

[0002] PEM (proton exchange membrane) water electrolysis hydrogen production technology has advantages such as rapid start-up and shutdown and the ability to match the volatility of renewable energy power generation. The membrane electrode assembly (MEA) is the core component of the PEM water electrolysis hydrogen production equipment. It adopts a sandwich structure, containing the PEM (proton exchange membrane), a catalyst layer (CL), and a sealing frame. It is the site where the electrode reaction occurs. The hydrogen produced by PEM water electrolysis can reach several megapascals, and gas leakage is prone to occur, thereby reducing hydrogen production efficiency and even causing hydrogen explosion accidents. Therefore, the sealing frame is crucial for the sealing of the membrane electrode assembly.

[0003] Traditional encapsulation methods for membrane electrode assemblies (MEAs) sealing frames mainly include face-to-face encapsulation and roll-to-roll encapsulation. Face-to-face encapsulation involves attaching the sealing frame to upper and lower planes, and then hot-pressing the catalyst coating membrane (CCM) within it. This method requires extremely flat planes, but in reality, processing errors and wear from long-term use can prevent the planes from meeting the flatness requirements. Furthermore, face-to-face pressing makes it difficult to expel air bubbles from the frame and easily leads to wrinkles, affecting the MEA's seal. Roll-to-roll encapsulation, on the other hand, involves sealing the sealing frame and the catalyst coating membrane together using upper and lower heated rollers. However, in roll-to-roll bonding, the rollers and the MEA are in line contact, and the MEA lacks support, easily causing wrinkles, thus affecting the MEA's seal and quality. To address these issues, this application proposes a roll-to-face encapsulation system for water electrolysis membrane electrodes. Utility Model Content

[0004] Based on this, in order to solve the problems existing in the prior art, this application provides an electrolytic water film electrode roller-to-surface encapsulation system, comprising:

[0005] The platform is ferromagnetic;

[0006] Two magnetic pads are magnetically attached to the top surface of the platform in parallel and spaced apart, forming a groove with open ends on the top surface of the platform. An adsorption area is provided on the top surface of the platform, and the adsorption area is located in the groove.

[0007] The sealing frame film has a hollowed-out area and is placed in a groove. During pressing, the hollowed-out area is aligned with the adsorption area.

[0008] The catalyst coating film is sandwiched between the sealing frame film and the catalyst coating film has an active area. During pressing, the active area is aligned with the hollow area.

[0009] The pressure plate is magnetic and magnetically engages with the platform. The pressure plate is used to fix the two ends of the sealing frame film in the groove.

[0010] A rubber roller, positioned above a platform, is used to hot roll a sealing frame film with a catalyst-coated film sandwiched between it.

[0011] Furthermore, the sealing frame film includes a first frame film and a second frame film. Adhesive is coated on the opposite sides of the first frame film and the second frame film. A catalyst coating film is disposed between the first frame film and the second frame film. When the rubber roller is hot-rolled, an angle is formed between the first frame film and the second frame film.

[0012] Furthermore, the pressure plate includes an upper pressure plate and a lower pressure plate, with the lower pressure plate pressing on the second frame film and the catalyst coating film, and the upper pressure plate pressing on the first frame film.

[0013] Furthermore, it also includes a magnetic powder brake, which is located below one end of the platform, with one end of the sealing frame membrane extending into a groove to connect with the magnetic powder brake.

[0014] Furthermore, the sealing frame membrane material is made of organic polymer material with a thickness of 30-250 μm, the adhesive thickness is 5-50 μm, and the gasket thickness is less than or equal to 30 μm.

[0015] Furthermore, a roller is provided on the outside of one end of the groove from which the sealing frame film extends, and the sealing frame film is partially attached to the outer wall of the roller.

[0016] Furthermore, the upper surface of the lower pressure plate has a notch that matches the first frame film.

[0017] Furthermore, positioning posts are set at the four corners of the top surface of the platform, and matching through holes are opened at both ends of the gasket, the upper pressure plate, and the lower pressure plate.

[0018] Beneficial effects: This application uses magnetic pads to form grooves on the top surface of the platform, which can quickly and accurately position the sealing frame film and catalyst coating film. By using a rubber roller in conjunction with the platform for pressing, the sealing frame film and catalyst coating film are attached to the platform, forming a roller-to-plate pressing method. At the same time, since the rubber roller is a soft material and the flat surface is a hard material, the hard flat surface provides support and is less likely to cause wrinkles to the membrane electrode, thereby improving the quality of the membrane electrode product. Moreover, this method is conducive to high-quality production of membrane electrodes, thereby reducing production costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the packaging system for the electrode roller of the water electrolysis film of this utility model.

[0021] Figure 2 Exploded view of the assembly of the electrolytic water film electrode roller opposite the packaging system of this utility model;

[0022] Figure 3 This is a schematic diagram of the assembly structure of the electrolytic water film electrode roller opposite the packaging system of this utility model;

[0023] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a schematic diagram of the pressing block structure of the electrolytic water film electrode roller opposite the packaging system of this utility model;

[0025] Figure 6 This is a schematic diagram of the adhesive roller pressing of the electrolytic water film electrode roller against the packaging system of the present invention.

[0026] Figure 7 This is a flowchart of the method for encapsulating the electrode roller of the water electrolysis film of this utility model.

[0027] In the diagram: 1. Platform; 11. Adsorption zone; 12. Positioning column; 2. Gasket; 3. Sealing frame film; 31. First frame film; 32. Second frame film; 33. Hollowed-out zone; 34. Reaction zone; 4. Catalyst coating film; 41. Activated zone; 5. Pressure plate; 51. Lower pressure plate; 511. Notch; 52. Upper pressure plate; 6. Rubber roller; 7. Magnetic powder brake; 8. Passing roller.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] like Figure 1-4 As shown, this application embodiment provides an electrolytic water film electrode roller-to-surface encapsulation system, including: a platform 1, the platform 1 being ferromagnetic;

[0033] Two pads 2 are magnetic and are magnetically attracted to the top surface of platform 1 at parallel intervals, forming a groove with open ends on the top surface of platform 1. An adsorption area 11 is provided on the top surface of platform 1, and the adsorption area 11 is located in the groove.

[0034] The sealing frame film 3 has a hollow area 33 and is set in the groove. When pressed, the hollow area 33 is aligned with the adsorption area 11.

[0035] The catalyst coating film 4 is sandwiched between the sealing frame film 3. The catalyst coating film 4 is provided with an active area 41. During pressing, the active area 41 is aligned with the hollow area 33.

[0036] The pressure plate 5 is magnetic and magnetically engages with the platform 1. The pressure plate 5 is used to fix the two ends of the sealing frame film 3 in the groove.

[0037] The rubber roller 6 is positioned above the platform 1 and is used to hot roll the sealing frame film 3, which is sandwiched with the catalyst coating film 4.

[0038] In this embodiment, the platform 1 is made of a ferromagnetic material such as iron, 409 stainless steel, 410 stainless steel, or 430 stainless steel. The gasket 2 is made of a magnet such as iron, cobalt, nickel, neodymium magnet, or samarium cobalt magnet. The two gaskets 2 are arranged in parallel, and pressure plates 5 are provided at both ends of the gaskets 2. The pressure plates 5 at both ends are arranged in parallel. The gaskets 2 and the pressure plates 5 together form a rectangular frame, and the width of the groove is the same as the width of the sealing frame film 3, so as to position and fix the sealing frame film 3, making it less likely to shift in subsequent operations.

[0039] The sealing frame film 3 is made of organic polymer material with a thickness of 25-200um. The thickness of the hot melt adhesive is 5-50um. The total thickness of the sealing frame film after adhesive application is 30-250um. The thickness of the gasket 2 is ≤30um, which is lower than the thickness of the sealing frame film 3.

[0040] The platform 1 has an adsorption area 11 in the middle of the groove. The size of the adsorption area 11 is between 50*50mm and 150*150mm.

[0041] The width of the catalyst coating film 4 (CCM) is less than or equal to the width of the frame, the length of the catalyst coating film 4 is less than or equal to the distance between the two end pressure plates 5, and the size of the hollow area 33 is the same as that of the active area 41.

[0042] The pressure plate 5 is made of one of iron, cobalt, nickel, neodymium magnets or samarium cobalt magnets;

[0043] The rubber roller 6 is made of high-temperature resistant soft rubber material. During rolling, the pressure is 0.5 to 1.5 MPa, the temperature of the rubber roller 6 is 60 to 130℃, and the speed is 0.3 to 1.0 m / min.

[0044] During encapsulation, two gaskets 2 are first placed parallel to each other on the top surface of platform 1 to form a groove. Then, the sealing frame film 3 and the catalyst coating film 4 are sequentially laid in the groove, aligning the adsorption area 11, the active area 41, and the hollow area 33. The flat surface is made of a hard material, which provides support and prevents wrinkles from forming on the membrane electrode. Then, the two ends of the sealing frame film 3 are quickly clamped and fixed by magnetic pressure plates 5. Because the length of the catalyst coating film 4 is less than or equal to the distance between the two pressure plates 5, the pressure plates 5 cannot press down on the catalyst coating film 4, maintaining a tight seal. The flatness and tension of the sealing frame film 3 are controlled by the soft material of the rubber roller 6. The deformation generated during the rolling process can stretch the sealing frame film 3, making it less prone to wrinkles during the rolling process. Then, the rubber roller 6 presses down on one end of the sealing frame film 3 and the catalyst coating film 4, and drives the rubber roller 6 to hot roll from one end of the sealing frame film 3 and the catalyst coating film 4 to the other end, so that the sealing frame film 3 and the catalyst coating film 4 are pressed together. In addition, the gradual rolling of the rubber roller 6 can remove air bubbles between the sealing frame film 3 and the catalyst coating film 4.

[0045] This application uses a magnetic pad 2 to form a groove on the top surface of the platform 1, which can quickly and accurately position the sealing frame film 3 and the catalyst coating film 4. By setting a rubber roller 6 in conjunction with the platform 1 for pressing, the sealing frame film 3 and the catalyst coating film 4 are attached to the platform 1, forming a roller-to-plate pressing method. At the same time, since the rubber roller 6 is made of soft material and the plane is made of hard material, the hard plane plays a supporting role and is less likely to cause wrinkles to the membrane electrode, thereby improving the quality of the membrane electrode product.

[0046] like Figure 5-6 As shown, in one embodiment, the sealing frame film 3 includes a first frame film 31 and a second frame film 32. Adhesive is coated on the opposite sides of the first frame film 31 and the second frame film 32. The catalyst coating film 4 is disposed between the first frame film 31 and the second frame film 32. When the rubber roller 6 hot rolls, an angle is formed between the first frame film 31 and the second frame film 32.

[0047] The pressure plate 5 includes an upper pressure plate 52 and a lower pressure plate 51. The lower pressure plate 51 is pressed on the second frame film 32 and the catalyst coating film 4, and the upper pressure plate 52 is pressed on the first frame film 31.

[0048] In this embodiment, a gap is provided between the first frame film 31 and the second frame film 32. The thickness of the first frame film 31 is greater than the thickness of the gasket 2. During the forward hot rolling process of the rubber roller 6, the rubber roller 6 applies pressure to one end of the second frame film 32, so that the pressed end of the second frame film 32 gradually adheres to the first frame film 31. At the end of the second frame film 32 that has not yet been rolled, the first frame film 31 and the second frame film 32 always maintain a certain angle at the rolling point, so that air bubbles can be more easily discharged. At the same time, the rubber roller 6 presses down on the second frame film 32.

[0049] During installation, the first frame film 31 with the adhesive layer facing upward is laid in the groove, and the hollow area 33 of the first frame film 31 is aligned with the adsorption area 11. Then, the active area 41 of the catalyst coating film 4 is aligned with the hollow area 33 of the first frame film 31, and the first frame film 31 and the catalyst coating film 4 are adsorbed and fixed on the first frame film 31 through the alignment of the active area 41 and the hollow area 33. Then, the lower pressure plate 51 is used to press down both ends of the first frame film 31, and the lower pressure plate 51 separates the first frame film 31 and the second frame film 32. When the glue roller 6 presses down, the first frame film 31 and the second frame film 32 form an angle. Finally, the second frame film 32 with the adhesive layer facing downward is laid in the groove, and the two ends of the second frame film 32 are clamped and fixed by the magnetic attraction of the upper pressure plate 52 and the lower pressure plate 51.

[0050] In one embodiment, a magnetic powder brake 7 is also included. The magnetic powder brake 7 is disposed below one end of the platform 1, and one end of the sealing frame film 3 extends out a groove to connect with the magnetic powder brake 7.

[0051] In this embodiment, the magnetic powder brake 7 always provides a resistance opposite to the direction of film release of the sealing frame membrane 3, so that the sealing frame membrane 3 maintains a constant tension during film pulling, resulting in a smoother film pulling. The magnetic powder brake 7 ensures that the sealing frame membrane 3 maintains tension during film pulling, thereby making the film pulling smoother and further improving the quality of the membrane electrode product.

[0052] In one embodiment, a roller 8 is provided outside one end of the groove from which the sealing frame film 3 extends, and the sealing frame film 3 is partially attached to the outer wall of the roller 8.

[0053] In this embodiment, by setting the roller 8, the sealing frame film 3 can be supported, and the sealing frame film 3 can always remain flat when the magnetic powder brake 7 is grinding.

[0054] In one embodiment, positioning posts 12 are respectively provided at the four corners of the top surface of the platform 1, and matching through holes are provided at both ends of the gasket 2, the upper pressure plate 52 and the lower pressure plate 51. The through holes and positioning posts 12 are used for quick positioning of the gasket 2, the upper pressure plate 52 and the lower pressure plate 51 during installation, thereby improving assembly efficiency.

[0055] In one embodiment, the upper surface of the lower pressure plate 51 is provided with a notch 511 that matches the first frame film 31. Its function is to facilitate quick positioning and fixation of the first frame film 31, so that it is not easy to shift in subsequent operations.

[0056] like Figure 7 As shown in the embodiments of this application, a method for packaging the electrode roller of an electrolytic water film onto the surface is also provided, including:

[0057] S1. Set up a platform 1, and attach two magnetic pads 2 to the upper surface of the platform 1 at intervals, forming a groove with the platform 1 with open ends.

[0058] S2. An adsorption area 11 is set in the groove;

[0059] S3. Set a sealing frame membrane 3 and sandwich the catalyst coating membrane 4 in the sealing frame membrane 3;

[0060] S4. The sealing frame membrane 3 with the catalyst coating membrane 4 sandwiched between is laid in the groove, and the reaction zone 34 of the sealing frame membrane 3 is aligned with the adsorption zone 11.

[0061] S5. Use the magnetic upper pressure plate 52 and lower pressure plate 51 to fix both ends of the sealing frame film 3;

[0062] S6. Use rubber roller 6 to perform hot rolling treatment on the fixed sealing frame film 3.

[0063] In this embodiment, the sealing frame film 3 is made of organic polymer material with a thickness of 30-250 μm, the hot melt adhesive has a thickness of 5-50 μm, and the gasket 2 has a thickness of less than or equal to 30 μm.

[0064] The conditions for hot rolling of rubber roller 6 are: pressure of 0.5 to 1.5 MPa, temperature of rubber roller 6 of 60 to 130℃, and speed of 0.3 to 1.0 m / min;

[0065] By setting a groove on the top surface of the platform 1 with a magnetic pad 2, the sealing frame film 3 and the catalyst coating film 4 can be quickly and accurately positioned. By setting a rubber roller 6 in conjunction with the platform 1 for pressing, the sealing frame film 3 and the catalyst coating film 4 are attached to the platform 1, forming a roller-to-plate pressing method. At the same time, since the rubber roller 6 is made of soft material and the plane is made of hard material, the hard plane plays a supporting role and is less likely to cause wrinkles to the membrane electrode, thereby improving the quality of the membrane electrode product. This method is conducive to the high-quality production of membrane electrodes, thereby reducing production costs.

[0066] In one embodiment, the sealing frame film 3 includes a first frame film 31 and a second frame film 32. Both the first frame film 31 and the second frame film 32 are provided with a hollow area 33. An active area 41 is provided on the catalyst coating film 4, so that the hollow area 33 and the active area 41 overlap to form a reaction area 34.

[0067] In one embodiment, the step of laying the sealing frame film 3 in the groove includes:

[0068] The first frame film 31 coated with adhesive layer is laid in the groove with the adhesive layer facing upward, so that the hollow area 33 of the first frame film 31 is aligned with the adsorption area 11.

[0069] Align the active region 41 of the catalyst coating film 4 with the hollowed-out region 33 of the first frame film 31, and make the catalyst coating film 4 adsorbed and fixed on the first frame film 31 through the alignment of the active region 41 and the hollowed-out region 33.

[0070] The two ends of the first frame film 31 are pressed down by the lower pressure plate 51;

[0071] Next, the second frame film 32 with the adhesive layer applied is laid face down in the groove, and the two ends of the second frame film 32 are clamped and fixed by the magnetic attraction between the upper pressure plate 52 and the lower pressure plate 51.

[0072] In this embodiment, the lower pressure plate 51 presses down on both ends of the second frame film 32, and the lower pressure plate 51 separates the first frame film 31 and the second frame film 32 with a certain gap. When the rubber roller 6 presses down, the first frame film 31 and the second frame film 32 form an angle, so that air bubbles can be better discharged during roller pressing.

[0073] In one embodiment, a statistical analysis of production defects (bubbles, wrinkles) was conducted on the finished membrane electrodes produced by the preparation method and system of this embodiment. 300 membrane electrode assemblies were manufactured, including 100 roll-to-roll packaged membrane electrodes, 100 face-to-face packaged membrane electrodes, and 100 roll-to-face packaged membrane electrodes. The test results are shown in Table 1.

[0074] Table 1. Statistical results of defects (bubbles, wrinkles) in different production methods

[0075] Roll-to-roll packaging 4 7 89％ Face-to-face packaging 9 5 86％ Roller-on packaging 0 1 99％

[0076] As can be seen from Table 1, the yield of membrane electrodes obtained by using the roll-to-roll and face-to-face encapsulation methods of this application reaches 99%, which is significantly better than the traditional roll-to-roll and face-to-face encapsulation methods.

[0077] In one embodiment, experiments were conducted on the membrane electrode using multiple preparation conditions, as shown in Table 3:

[0078] Table 2 Preparation conditions

[0079] First border film thickness 50um 100um 120um 150um 170um CCM thickness 80um 80um 80um 80um 80um Second border film thickness 50um 100um 120um 150um 170um Rubber roller pressure 0.5MPa 0.8MPa 1.0MPa 1.2MPa 1.5MPa Rubber roller temperature 60℃ 80℃ 100℃ 120℃ 130℃ speed 1.0 m / min 0.9 m / min 0.8 m / min 0.6 m / min 0.5 m / min

[0080] The water electrolysis membrane electrodes of Examples 1-5 were assembled into single cells and their performance was tested. The results are shown in Table 3.

[0081] Table 3 Performance test results of each comparative example

[0082]

[0083]

[0084] As can be seen from Table 3, the test results of Comparative Examples 1 to 5 are all normal, indicating that the membrane electrodes prepared according to the preparation conditions in Table 2 all have good performance.

[0085] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A water electrolysis film electrode roller-to-surface encapsulation system, characterized in that, include: The platform is ferromagnetic; Two magnetic pads are magnetically attached to the top surface of the platform at a parallel interval, forming a groove with open ends on the top surface of the platform. An adsorption area is provided on the top surface of the platform, and the adsorption area is located in the groove. A sealing frame film, wherein the sealing frame film is provided with a hollow area, the sealing frame film is disposed in the groove, and during pressing, the hollow area is aligned with the adsorption area; A catalyst coating film is sandwiched between the sealing frame film. The catalyst coating film has an active area, which is aligned with the hollow area during pressing. A pressure plate, which is magnetic, is magnetically engaged with the platform and is used to fix the two ends of the sealing frame film in the groove. A rubber roller is disposed above the platform and is used to hot roll the sealing frame film, which is sandwiched with the catalyst coating film.

2. The electrolytic water film electrode roller-to-surface encapsulation system according to claim 1, characterized in that, The sealing frame film includes a first frame film and a second frame film. Adhesive is applied to the opposite sides of the first frame film and the second frame film. The catalyst coating film is disposed between the first frame film and the second frame film. When the rubber roller is hot-rolled, an angle is formed between the first frame film and the second frame film.

3. The electrolytic water film electrode roller-to-surface encapsulation system according to claim 2, characterized in that, The pressure plate includes an upper pressure plate and a lower pressure plate. The lower pressure plate is pressed onto the second frame film and the catalyst coating film, and the upper pressure plate is pressed onto the first frame film.

4. The electrolytic water film electrode roller-to-surface encapsulation system according to claim 1, characterized in that, It also includes a magnetic powder brake, which is disposed below one end of the platform, and one end of the sealing frame membrane extends out of the groove and connects to the magnetic powder brake.

5. The electrolytic water film electrode roller-to-surface encapsulation system according to claim 2, characterized in that, The sealing frame membrane material is made of organic polymer material with a thickness of 30-250 μm, the adhesive has a thickness of 5-50 μm, and the gasket has a thickness of less than or equal to 30 μm.

6. The electrolytic water film electrode roller-to-surface encapsulation system according to claim 1, characterized in that, A roller is provided outside one end of the groove from which the sealing frame film extends, and the sealing frame film is partially attached to the outer wall of the roller.

7. The electrolytic water film electrode roller-to-surface encapsulation system according to claim 3, characterized in that, The upper surface of the lower pressure plate has a notch that matches the first frame film.

8. The electrolytic water film electrode roller-to-surface encapsulation system according to claim 3, characterized in that, Positioning posts are provided at the four corners of the top surface of the platform, and matching through holes are provided at both ends of the gasket, the upper pressure plate, and the lower pressure plate.

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