An electrolysis chamber and a hydrogen production electrolyzer

Abstract

This application discloses an electrolysis chamber and a hydrogen production electrolyzer. The electrolysis chamber includes a first electrode frame, a first single-sided stamped electrode plate, a first cathode electrode, a first anode electrode, a first flexible support mesh, a second electrode frame, a second single-sided stamped electrode plate, a second cathode electrode, a second anode electrode, a second flexible support mesh, and a first electrolysis diaphragm cloth. The first flexible support mesh is disposed between the first cathode electrode and the first anode electrode. The second electrode frame is disposed on one side of the first electrode frame. The second cathode electrode is disposed on one side of the second single-sided stamped electrode plate. The second anode electrode is disposed on the other side of the second single-sided stamped electrode plate. The second flexible support mesh is disposed between the second cathode electrode and the second anode electrode. The first electrolysis diaphragm cloth is disposed between the first electrode frame and the second electrode frame. This utility model can solve the problems of high manufacturing cost and high energy consumption of existing water electrolysis hydrogen production electrolyzers.

Description

Technical Field

[0001] This application relates to the field of water electrolysis for hydrogen production technology, and in particular to an electrolysis chamber and a hydrogen electrolysis cell. Background Technology

[0002] Currently, there are two main structural technology routes for the electrode plates, key components of alkaline pressure filter electrolyzers in my country. One is the stamped electrode plate, where the electrode plate substrate is made of cold-stamped metal sheet, and then stamped on both sides of the substrate according to certain rules to form an integral, two-sided concave-convex structure. This technology route results in lower manufacturing costs for electrolyzers due to the relatively simple materials and processing technology. However, because the integral stamped structure is a rigid structure, and the stamping characteristics of adjacent electrode plates are top-to-top during electrolyzer manufacturing, a certain margin is often reserved in the design and manufacturing process to avoid damage to the electrolytic membrane material during electrolyzer assembly and long-term use. This prevents the stamped electrode plate from excessively squeezing the electrolytic membrane. However, the certain gap that must be reserved due to the structural characteristics will cause the stamped electrode plate to... Poor overall or partial contact with the electrode material leads to excessively high resistance in the electrolysis chamber, resulting in poor electrolyzer performance and high energy consumption, which is detrimental to controlling the operating costs of hydrogen production. The second approach is a plate-and-mesh combination technology. In this approach, the lower electrode plate is a metal plate, and a relatively flexible, compressible metal support mesh material is set on both sides of the plate to replace the stamping feature. Because the support mesh is compressible, this technology ensures that the diaphragm is not damaged during electrolyzer manufacturing, increasing the fault tolerance rate. It also ensures better electrode contact, reducing the resistance of the electrolysis chamber, thereby protecting the diaphragm for long-term use and reducing energy consumption. However, the support mesh material is expensive, and the large-scale addition of such materials increases the manufacturing cost of the electrolyzer, which is not conducive to project investment and construction. Utility Model Content

[0003] The main purpose of this application is to provide an electrolysis chamber and a hydrogen production electrolyzer, which aims to solve the problems of high manufacturing cost and high energy consumption of existing water electrolysis hydrogen production electrolyzers.

[0004] To achieve the above objectives, this application provides an electrolysis chamber, comprising: a first electrode frame, a first single-sided stamped electrode plate, a first cathode electrode, a first anode electrode, a first flexible support mesh, a second electrode frame, a second single-sided stamped electrode plate, a second cathode electrode, a second anode electrode, a second flexible support mesh, a first electrolytic diaphragm cloth, and a first sealing gasket, wherein the first single-sided stamped electrode plate is disposed on the inner side of the first electrode frame, and the first single-sided stamped electrode plate is provided with first protrusions spaced apart; the first cathode electrode is disposed on one side of the first single-sided stamped electrode plate; the first anode electrode is disposed on the other side of the first single-sided stamped electrode plate; the first flexible support mesh is disposed between the first single-sided stamped electrode plate and the first anode electrode, or, the first flexible support mesh is disposed on the... Between the first single-sided stamped electrode plate and the first cathode electrode; the second electrode plate frame is disposed on one side of the first electrode plate frame; the second single-sided stamped electrode plate is disposed on the inner side of the second electrode plate frame, and the second single-sided stamped electrode plate is provided with second protrusions at intervals; the second cathode electrode is disposed on one side of the second single-sided stamped electrode plate; the second anode electrode is disposed on the other side of the second single-sided stamped electrode plate; the second flexible support mesh is disposed between the second single-sided stamped electrode plate and the second anode electrode, or the second flexible support mesh is disposed between the second single-sided stamped electrode plate and the second cathode electrode; the first electrolytic diaphragm cloth is disposed between the first electrode plate frame and the second electrode plate frame; the first sealing gasket is disposed between the first electrode plate frame and the second electrode plate frame.

[0005] Optionally, the first electrode frame and the first single-sided stamped electrode are welded together as an integral structure; the second electrode frame and the second single-sided stamped electrode are welded together as an integral structure.

[0006] Optionally, the thickness of the first single-sided stamped electrode plate is less than the thickness of the first electrode frame; the thickness of the second single-sided stamped electrode plate is less than the thickness of the second electrode frame.

[0007] In addition, to achieve the above objectives, this application also provides a hydrogen production electrolyzer, including the electrolysis chamber described in any of the above claims.

[0008] Furthermore, to achieve the above objectives, this application also provides an electrolysis chamber, comprising: a third electrode frame, a stamped electrode plate, a third cathode electrode, a third anode electrode, a fourth electrode frame, a flat electrode plate, a fourth cathode electrode, a fourth anode electrode, a third flexible support mesh, a fourth flexible support mesh, a second electrolysis diaphragm cloth, and a second sealing gasket, wherein the stamped electrode plate is disposed on the inner side of the third electrode frame, and the stamped electrode plate is provided with a continuous concave-convex structure; the third cathode electrode is disposed on one side of the stamped electrode plate, and the third cathode electrode is in contact with the concave-convex structure; the third anode electrode is disposed on the other side of the stamped electrode plate, and the third electrode plate is disposed on the other side of the stamped electrode plate. The three anode electrodes are attached to the concave-convex structure; the fourth electrode frame is disposed on one side of the third electrode frame; the flat electrode plate is disposed on the inner side of the fourth electrode frame; the fourth cathode electrode is disposed on one side of the flat electrode plate; the fourth anode electrode is disposed on the other side of the flat electrode plate; the third flexible support mesh is disposed between the flat electrode plate and the fourth cathode electrode; the second electrolytic diaphragm cloth is disposed between the third electrode frame and the fourth electrode frame; the second sealing gasket is disposed between the third electrode frame and the fourth electrode frame.

[0009] Optionally, the third electrode frame is welded to the stamped electrode plate as an integral structure; the fourth electrode frame is welded to the flat electrode plate as an integral structure.

[0010] Optionally, the overall thickness of the stamped electrode plate is not less than the thickness of the third electrode plate frame; the thickness of the flat electrode plate is less than the thickness of the fourth electrode plate frame.

[0011] In addition, to achieve the above objectives, this application also provides a hydrogen production electrolyzer, including the electrolysis chamber described in any of the above claims.

[0012] This application proposes an electrolysis chamber that, by setting a first single-sided stamped electrode plate and a first flexible support mesh between the first cathode electrode and the first anode electrode, and a second single-sided stamped electrode plate and a second flexible support mesh between the second cathode electrode and the second anode electrode, eliminates the need for rigid stamped electrode plates throughout the electrolysis chamber. Instead, one side of the first electrolytic diaphragm cloth in the electrolysis chamber is a rigid structure, and the other side is a flexible structure. The extrusion deformation of the flexible structure in the electrolysis chamber ensures that the electrode materials in the electrolysis chamber are pressed tightly against each other, thereby ensuring good electrode contact and ultimately reducing the contact resistance of the electrodes in the electrolysis chamber. Furthermore, because the electrode materials have good contact during the entire surface current transmission, the current distribution on the electrode surface during the electrolysis process can be ensured to be uniform, thereby better utilizing the electrode performance and achieving a high reaction efficiency and low energy consumption effect in the electrolysis chamber. In addition, since the first flexible support mesh is set only on one side of the first electrolytic diaphragm cloth in the electrolysis chamber, and the other side is a rigid second single-sided stamped electrode plate structure, the amount of flexible support mesh material used is halved compared to plate and mesh structure electrolytic cells, thereby significantly reducing the manufacturing cost of the electrolytic cell. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an electrolysis chamber provided in the first embodiment of this application; Figure 2 for Figure 1 The exploded image; Figure 3 This is a schematic diagram of the structure of an electrolysis chamber provided in the second embodiment of this application; Figure 4 for Figure 3 The exploded image; Figure 5 An exploded view of a hydrogen production electrolyzer provided in the first embodiment of this application; Figure 6 This is an exploded view of a hydrogen production electrolyzer provided in the second embodiment of this application.

[0014] In the figure, 1. First electrode frame; 2. First single-sided stamped electrode plate; 201. First protrusion; 3. First cathode electrode; 4. First anode electrode; 5. First flexible support mesh; 6. Second electrode frame; 7. Second single-sided stamped electrode plate; 701. Second protrusion; 8. Second cathode electrode; 9. Second anode electrode; 10. Second flexible support mesh; 11. First electrolytic diaphragm cloth; 12. First sealing gasket; 13. Third electrode frame; 14. Stamped electrode plate; 15. Third cathode electrode; 16. Third anode electrode; 17. Fourth electrode frame; 18. Flat electrode plate; 19. Fourth cathode electrode; 20. Fourth anode electrode; 21. Third flexible support mesh; 22. Fourth flexible support mesh; 23. Second electrolytic diaphragm cloth; 24. Second sealing gasket.

[0015] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are 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 meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those 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.

[0020] Please refer to Figure 1 , Figure 2This application provides an electrolysis chamber, which may include: a first electrode frame 1, a first single-sided stamped electrode plate 2, a first cathode electrode 3, a first anode electrode 4, a first flexible support mesh 5, a second electrode frame 6, a second single-sided stamped electrode plate 7, a second cathode electrode 8, a second anode electrode 9, a second flexible support mesh 10, a first electrolytic diaphragm cloth 11, and a first sealing gasket 12. The first single-sided stamped electrode plate 2 is disposed inside the first electrode frame 1, and first protrusions 201 are spaced apart on the first single-sided stamped electrode plate 2. The first cathode electrode 3 is disposed on one side of the first single-sided stamped electrode plate 2, and the first anode electrode 4 is disposed on the other side of the first single-sided stamped electrode plate 2. The first flexible support mesh 5 is disposed between the first cathode electrode 3 and the first anode electrode 4; the second electrode frame 6 is disposed on one side of the first electrode frame 1; the second single-sided stamped electrode plate 7 is disposed on the inner side of the second electrode frame 6, and the second single-sided stamped electrode plate 7 is provided with second protrusions 701 at intervals; the second cathode electrode 8 is disposed on one side of the second single-sided stamped electrode plate 7; the second anode electrode 9 is disposed on the other side of the second single-sided stamped electrode plate 7; the second flexible support mesh 10 is disposed between the second cathode electrode 8 and the second anode electrode 9; the first electrolytic diaphragm cloth 11 is disposed between the first electrode frame 1 and the second electrode frame 6; and the first sealing gasket 12 is disposed between the first electrode frame 1 and the second electrode frame 6.

[0021] Compared to existing electrolysis chambers, this embodiment, by setting a first single-sided stamped electrode plate 2 and a first flexible support net 5 between the first cathode electrode 3 and the first anode electrode 4, and setting a second single-sided stamped electrode plate 7 and a second flexible support net 10 between the second cathode electrode 8 and the second anode electrode 9, eliminates the need to set rigid stamped electrode plates throughout the electrolysis chamber. Instead, one side of the first electrolytic diaphragm cloth 11 in the electrolysis chamber is a rigid structure, and the other side is a flexible structure. The extrusion deformation of the flexible structure in the electrolysis chamber ensures that the electrode materials in the electrolysis chamber are pressed tightly against each other, thereby ensuring good electrode contact and ultimately reducing the contact resistance of the electrodes in the electrolysis chamber. Furthermore, because the electrode materials have good contact during the entire surface current transmission, the current distribution on the electrode surface during the electrolysis process can be ensured to be uniform, thereby better utilizing the electrode performance and achieving high reaction efficiency and low energy consumption in the electrolysis chamber. In addition, since the first flexible support net 5 is set only on one side of the first electrolysis diaphragm cloth 11 in the electrolysis chamber, and the other side is a rigid second single-sided stamped electrode plate 7 structure, the amount of flexible support net material used is halved compared to the plate and mesh structure electrolysis cell, thereby significantly reducing the manufacturing cost of the electrolysis cell.

[0022] It should be noted that the first flexible support mesh 5 and the second flexible support mesh 10 are made of metal and have good electrical conductivity. After being compressed, the first flexible support mesh 5 and the second flexible support mesh 10 have a certain deformation compensation and rebound ability. They are mainly used to support the electrodes, distribute the current evenly, and provide smooth flow for the internal medium. The materials and structural types of the first flexible support mesh 5 and the second flexible support mesh 10 can be steel plate stretched mesh (one is carbon steel thin plate stretched and then plated with nickel, and the other is thin nickel plate stretched), foamed nickel, knitted corrugated nickel mesh, woven corrugated nickel mesh, stretched corrugated nickel mesh, etc. When steel plate stretched mesh is used as a flexible support mesh, the recommended range of compressible deformation is approximately 0.05mm to 0.3mm; when foamed nickel mesh is used as a flexible support mesh, the recommended range of compressible deformation is approximately 0.05mm to 1mm; when knitted corrugated nickel mesh is used as a flexible support mesh, the recommended range of compressible deformation is approximately 0.5mm to 3mm; when woven corrugated nickel mesh is used as a flexible support mesh, the recommended range of compressible deformation is approximately 0.1mm to 1mm; and when stretched corrugated nickel mesh is used as a flexible support mesh, the recommended range of compressible deformation is approximately 0.05mm to 0.5mm. The specific range depends on the type of electrolytic diaphragm, the characteristics of the diaphragm model, and the characteristics of the flexible support mesh matrix.

[0023] The first electrolytic diaphragm cloth 11 serves to isolate the hydrogen generated by the cathode and the oxygen generated by the anode on both sides of the diaphragm. The first electrolytic diaphragm cloth 11 can be a woven fabric made of materials such as polyphenylene sulfide, or a composite diaphragm.

[0024] The first single-sided stamped electrode plate 2 and the second single-sided stamped electrode plate 7 are metal cold deep-stamped plates that are stamped by machine tool molds to form protrusions on one side that are distributed in a certain regular pattern. The specifications and dimensions of the individual protrusions are not limited. They are mainly used to support the first cathode electrode 3 or the second cathode electrode 8, distribute the current evenly, and ensure the smooth flow of the internal medium.

[0025] In addition, a first sealing gasket 12 is provided between the first electrode plate frame 1 and the second electrode plate frame 6, which can effectively prevent electrolyte leakage and improve the sealing performance of the electrolysis chamber. The material of the first sealing gasket 12 can be selected from materials with good corrosion resistance and elasticity, such as modified fluoroplastics, to ensure that a good sealing effect can be maintained during long-term electrolysis.

[0026] Furthermore, in some possible implementations, the first electrode frame 1 is welded to the first single-sided stamped electrode 2 as an integral structure; the second electrode frame 6 and the second single-sided stamped electrode 7 are welded to the same integral structure.

[0027] Specifically, the first electrode frame 1 and the first single-sided stamped electrode 2 are manufactured by welding, and the second electrode frame 6 and the second single-sided stamped electrode 7 are also manufactured by welding. This welded structure design improves the overall strength of the electrolysis chamber.

[0028] Furthermore, in some possible implementations, the thickness of the first single-sided stamped electrode plate 2 is less than the thickness of the first electrode frame 1; the thickness of the second single-sided stamped electrode plate 7 is less than the thickness of the second electrode frame 6.

[0029] In this design, the thickness of the first single-sided stamped electrode plate 2 is less than the thickness of the first electrode frame 1; the thickness of the second single-sided stamped electrode plate 7 is less than the thickness of the second electrode frame 6. This design allows the stamped electrode plates to maintain sufficient strength while reducing weight and material costs. It also facilitates the water electrolysis hydrogen production reaction within the electrolysis chamber and helps to seal the electrolysis chamber.

[0030] As an optional implementation method, please refer to Figure 5 This application also provides a hydrogen production electrolyzer, which may include a plurality of electrolysis chambers as described in any of the above embodiments.

[0031] In this embodiment, a hydrogen production electrolyzer is formed by combining multiple electrolysis chambers. Each electrolysis chamber is designed and assembled according to the structure described above, ensuring the efficient and stable operation of the electrolyzer. During operation, the electrolyte circulates within the electrolysis chambers, electrolyzing water into hydrogen and oxygen. Due to the rational structural design of the electrolysis chambers, uniform current distribution, and low contact resistance, energy consumption is significantly reduced and electrolysis efficiency is improved.

[0032] As an optional implementation method, please refer to Figure 3 , Figure 4This application also provides an electrolysis chamber, which may include: a third electrode frame 13, a stamped electrode plate 14, a third cathode electrode 15, a third anode electrode 16, a fourth electrode frame 17, a flat electrode plate 18, a fourth cathode electrode 19, a fourth anode electrode 20, a third flexible support mesh 21, a fourth flexible support mesh 22, a second electrolysis diaphragm cloth 23, and a second sealing gasket 24. The stamped electrode plate 14 is disposed inside the third electrode frame 13, and has a continuous convex-concave structure. The third cathode electrode 15 is disposed on one side of the stamped electrode plate 14, and is attached to the convex-concave structure. The third anode electrode 16 is disposed on the third electrode frame 17, a flat electrode plate 18, a fourth cathode electrode 19, a fourth anode electrode 20, a third flexible support mesh 21, a fourth flexible support mesh 22, a second electrolysis diaphragm cloth 23, and a second sealing gasket 24. On the other side of the pressure plate 14, the third anode electrode 16 is attached to the concave-convex structure; the fourth electrode frame 17 is disposed on one side of the third electrode frame 13; the flat electrode 18 is disposed on the inner side of the fourth electrode frame 17; the fourth cathode electrode 19 is disposed on one side of the flat electrode 18; the fourth anode electrode 20 is disposed on the other side of the flat electrode 18; the third flexible support mesh 21 is disposed between the flat electrode 18 and the fourth cathode electrode 19; the fourth flexible support mesh 22 is disposed between the flat electrode 18 and the fourth anode electrode 20; the second electrolytic diaphragm cloth 23 is disposed between the third electrode frame 13 and the fourth electrode frame 17; and the second sealing gasket 24 is disposed between the third electrode frame 13 and the fourth electrode frame 17.

[0033] In this design, by setting a stamped electrode plate 14 between the third cathode electrode 15 and the third anode electrode 16, and setting a third flexible support net 21, a flat electrode plate 18, and a fourth flexible support net 22 between the fourth cathode electrode 19 and the fourth anode electrode 20, it is no longer necessary to set flexible stamped electrode plates throughout the electrolysis chamber. Instead, one side of the second electrolytic diaphragm cloth 23 in the electrolysis chamber is a rigid structure, and the other side is a flexible structure. The extrusion deformation of the flexible structure in the electrolysis chamber ensures that the electrode materials in the electrolysis chamber are pressed tightly against each other, thereby ensuring good electrode contact and ultimately reducing the contact resistance of the electrodes in the electrolysis chamber. Furthermore, because the electrode materials have good contact during the entire surface current transmission, the current distribution on the electrode surface during the electrolysis process can be ensured to be uniform, thereby better utilizing the electrode performance and achieving high reaction efficiency and low energy consumption in the electrolysis chamber. Moreover, since the flexible structure is only set on one side of the second electrolytic diaphragm cloth 23 in the electrolysis chamber, and the other side is a rigid structure, the amount of flexible support net material used is halved compared to plate and mesh structure electrolytic cells, thereby significantly reducing the manufacturing cost of the electrolytic cell.

[0034] It should be noted that the stamped electrode plate 14 is a metal cold deep-stamped plate that is stamped by a machine tool mold to form protrusions on both sides with concave and convex shapes distributed in a certain regular pattern. The size of a single protrusion is not limited. It is mainly used to support the third cathode electrode 15 and the third anode electrode 16, distribute the current evenly, and ensure the smooth flow of the internal medium.

[0035] Specifically, a second sealing gasket 24 is provided between the third electrode frame 13 and the fourth electrode frame 17, which can effectively prevent electrolyte leakage and improve the sealing performance of the electrolysis chamber. The material of the second sealing gasket 24 can be selected from materials with good corrosion resistance and elasticity, such as modified fluoroplastics, to ensure that a good sealing effect can be maintained during long-term electrolysis.

[0036] Furthermore, in some possible implementations, the third electrode frame 13 is welded to the stamped electrode 14 as an integral structure; the fourth electrode frame 17 is welded to the flat electrode 18 as an integral structure.

[0037] In this embodiment, the third electrode frame 13 and the stamped electrode plate 14 are manufactured by welding, and the fourth electrode frame 17 and the flat electrode plate 18 are also manufactured by welding. This welded structure design improves the overall strength of the electrolysis chamber.

[0038] Furthermore, in some possible implementations, the overall thickness of the stamped electrode plate 14 is not less than the thickness of the third electrode frame 13; the thickness of the flat electrode plate 18 is less than the thickness of the fourth electrode frame 17.

[0039] Specifically, the overall thickness of the stamped electrode plate 14 is not less than the thickness of the third electrode frame 13; the thickness of the flat electrode plate 18 is less than the thickness of the fourth electrode frame 17. This design allows the stamped electrode plate 14 to reduce weight and material costs while ensuring sufficient strength; it also facilitates the water electrolysis hydrogen production reaction in the electrolysis chamber and helps to seal the electrolysis chamber.

[0040] It should be noted that the overall thickness of the stamped electrode plate 14 refers to the maximum distance between the concave and convex structures of the stamped electrode plate 14.

[0041] As an optional implementation method, please refer to Figure 6 This application also provides a hydrogen production electrolyzer, which may include a plurality of electrolysis chambers as described in any of the above embodiments.

[0042] In this embodiment, a hydrogen production electrolyzer is formed by combining multiple electrolysis chambers. Each electrolysis chamber is designed and assembled according to the structure described above, ensuring the efficient and stable operation of the electrolyzer. During operation, the electrolyte circulates within the electrolysis chambers, electrolyzing water into hydrogen and oxygen. Due to the rational structural design of the electrolysis chambers, uniform current distribution, and low contact resistance, energy consumption is significantly reduced and electrolysis efficiency is improved.

[0043] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An electrolysis chamber, characterized in that, include: First pole plate frame (1); The first single-sided stamped electrode plate (2) is disposed on the inner side of the first electrode plate frame (1), and the first single-sided stamped electrode plate (2) is provided with first protrusions (201) at intervals. The first cathode electrode (3) is disposed on one side of the first single-sided stamped electrode plate (2); The first anode electrode (4) is disposed on the other side of the first single-sided stamped electrode plate (2); The first flexible support mesh (5) is disposed between the first single-sided stamped electrode plate (2) and the first anode electrode (4), or the first flexible support mesh (5) is disposed between the first single-sided stamped electrode plate (2) and the first cathode electrode (3). The second electrode frame (6) is disposed on one side of the first electrode frame (1); The second single-sided stamped electrode plate (7) is disposed on the inner side of the second electrode plate frame (6), and the second single-sided stamped electrode plate (7) is provided with second protrusions (701) at intervals. The second cathode electrode (8) is disposed on one side of the second single-sided stamped electrode plate (7); The second anode electrode (9) is disposed on the other side of the second single-sided stamped electrode plate (7); The second flexible support mesh (10) is disposed between the second single-sided stamped electrode plate (7) and the second anode electrode (9), or the second flexible support mesh (10) is disposed between the second single-sided stamped electrode plate (7) and the second cathode electrode (8). The first electrolytic diaphragm cloth (11) is disposed between the first electrode frame (1) and the second electrode frame (6); The first sealing gasket (12) is disposed between the first electrode frame (1) and the second electrode frame (6).

2. The electrolysis chamber according to claim 1, characterized in that, The first electrode frame (1) is welded to the first single-sided stamped electrode (2) as an integral structure; the second electrode frame (6) and the second single-sided stamped electrode (7) are welded to the integral structure.

3. The electrolysis chamber according to claim 2, characterized in that, The thickness of the first single-sided stamped electrode plate (2) is less than the thickness of the first electrode plate frame (1); the thickness of the second single-sided stamped electrode plate (7) is less than the thickness of the second electrode plate frame (6).

4. An electrolysis chamber, characterized in that, include: Third pole plate frame (13); A stamped electrode plate (14) is disposed on the inner side of the third electrode plate frame (13), and the stamped electrode plate (14) is provided with a continuous concave-convex structure; The third cathode electrode (15) is disposed on one side of the stamped electrode plate (14), and the third cathode electrode (15) is in contact with the concave-convex structure; The third anode electrode (16) is disposed on the other side of the stamped electrode plate (14), and the third anode electrode (16) is in contact with the concave-convex structure; The fourth pole plate frame (17) is disposed on one side of the third pole plate frame (13); A flat electrode plate (18) is disposed on the inner side of the fourth electrode plate frame (17); The fourth cathode electrode (19) is disposed on one side of the flat electrode plate (18); The fourth anode electrode (20) is disposed on the other side of the flat electrode plate (18); A third flexible support mesh (21) is disposed between the flat electrode plate (18) and the fourth cathode electrode (19); A fourth flexible support mesh (22) is disposed between the flat electrode plate (18) and the fourth anode electrode (20); The second electrolytic diaphragm cloth (23) is disposed between the third electrode frame (13) and the fourth electrode frame (17); The second sealing gasket (24) is disposed between the third electrode frame (13) and the fourth electrode frame (17).

5. The electrolysis chamber according to claim 4, characterized in that, The third electrode frame (13) is welded to the stamped electrode plate (14) as an integral structure; the fourth electrode frame (17) is welded to the flat electrode plate (18) as an integral structure.

6. The electrolysis chamber according to claim 5, characterized in that, The overall thickness of the stamped electrode plate (14) is not less than the thickness of the third electrode plate frame (13); the thickness of the flat electrode plate (18) is less than the thickness of the fourth electrode plate frame (17).

7. A hydrogen production electrolyzer, characterized in that, It includes multiple electrolysis chambers as described in any one of claims 1 to 3.

8. A hydrogen production electrolyzer, characterized in that, It includes multiple electrolysis chambers as described in any one of claims 4 to 6.

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