electrolytic cell

Abstract

The utility model discloses an electrolytic cell relates to electrolytic cell technical field, wherein, electrolytic cell includes board body structure and insulation structure, and board body structure includes two board bodies and sets up the insulation part between two board bodies, and at least one of board body is set up as the bearing board body, and the insulation structure includes the cladding of setting up as the insulation material, and the cladding is covered in the outer surface of insulation part, and can extend to the at least part of the outer surface of bearing board body cladding, to close the gap between insulation part and bearing board body, both avoid the insulation of electrolytic cell to reduce, and can avoid the possible accelerated aging of insulation part because of water oxygen invasion, help to prolong the life of insulation part, simultaneously through setting up the cladding of insulation material, to isolate insulation part and external environment, to avoid the insulation of insulation part because of dust or iron filings and fall on the insulation part and lead to the problem of reducing, make insulation part can keep insulation, thereby solve the problem that the insulation of the insulation part of existing electrolytic cell reduces when producing.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic cell technology, and in particular to an electrolytic cell. Background Technology

[0002] With the continuous growth of global energy demand, hydrogen energy, as an important energy carrier, has received widespread attention. Currently, in existing electrolyzer structures, insulating components are typically installed between the end plates and the end pressure plates to ensure insulation between them. However, during production operation, iron filings and dust may adhere to the insulating components, significantly reducing the insulation between the end plates and the end pressure plates, thus posing a risk of short circuits to the electrolyzer. Utility Model Content

[0003] The main purpose of this invention is to propose an electrolytic cell that aims to solve the problem that the insulation of the insulating components of existing electrolytic cells decreases during production.

[0004] To achieve the above objectives, the electrolytic cell proposed in this application includes...

[0005] A plate structure comprising two plates and an insulating portion disposed between the two plates, wherein at least one of the plates is configured as a load-bearing plate; and

[0006] An insulating structure includes a covering portion configured as an insulating material, the covering portion completely covering the outer surface of the insulating portion and extending to cover at least a portion of the outer surface of the support plate.

[0007] In one embodiment, the covering portion includes insulating tape or insulating adhesive.

[0008] In one embodiment, the insulating tape includes polytetrafluoroethylene tape, silicone tape, rubber tape, vinyl ester tape, or fluororubber tape.

[0009] In one embodiment, the thickness of the covering portion is D, where D ≥ 1 mm.

[0010] In one embodiment, one of the plates is configured as an end pressure plate, and the other plate is configured as an end electrode plate; or,

[0011] One of the plates is configured as an intermediate electrode plate, and the other plate is configured as an electrode plate.

[0012] In one embodiment, the covering portion includes a first covering section and a second covering section connected to the first covering section. The first covering section extends along the width direction of the electrolytic cell to cover the outer surface of the end plate or the intermediate electrode plate, and the second covering section extends along the length direction of the electrolytic cell to cover the outer surface of the end plate or the electrode plate.

[0013] In one embodiment, the length of the end plate or the intermediate electrode plate in the width direction of the electrolytic cell is L1, the length of the electrode plate in the width direction of the electrolytic cell is L2, and the covering length of the first covering segment on the end plate or the intermediate electrode plate is H1, wherein 5mm≤H1≤ / 2.

[0014] In one embodiment, the length of the electrode plate or the end electrode plate in the length direction of the electrolytic cell is L3, and the coating length of the second coating segment on the electrode plate is H2, wherein 5mm≤H2≤L3.

[0015] In one embodiment, both plates are configured as electrode plates.

[0016] In one embodiment, the length of the electrode plate in the length direction of the electrolytic cell is L3, and the covering length of the coating portion on the electrode plate is H3, wherein 5mm≤H3≤L3.

[0017] In the technical solution of this application, by setting the insulating part to isolate the two plates to prevent them from being electrically connected, and by covering the covering part to cover at least part of the supporting plate to seal the gap between the insulating part and the supporting plate, the penetration of water and oxygen into the contact surface between the insulating part and the supporting plate is reduced. This not only prevents the insulation of the electrolytic cell from decreasing, but also prevents the insulating part from aging prematurely due to water and oxygen intrusion, thus helping to extend the life of the insulating part. At the same time, by setting the covering part of insulating material, the insulating part is isolated from the external environment to prevent the insulation of the insulating part from decreasing due to dust or iron filings falling on it, so that the insulating part can maintain its insulation. This solves the problem that the insulation of the insulating parts of existing electrolytic cells will decrease during production. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in some embodiments or prior art provided in this application, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of an embodiment of an electrolytic cell provided for some embodiments of this application;

[0020] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0021] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0022] Figure 4 for Figure 1 A magnified view of a section at point C.

[0023] Explanation of icon numbers:

[0024] 100. Electrolytic cell; 1. Plate structure; 11. Plate; 11a. End pressure plate; 11b. End electrode plate; 11c. Intermediate electrode plate; 11d. Electrode plate; 12. Insulation part; 2. Insulation structure; 21. Covering part; 211. First covering section; 212. Second covering section.

[0025] 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

[0026] The technical solutions in some embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] It should be noted that if some embodiments provided in this application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] Furthermore, if some embodiments provided in this application 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, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a 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 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 in this application.

[0029] With the continuous growth of global energy demand, hydrogen energy, as an important energy carrier, has received widespread attention. Currently, in existing electrolyzer structures, insulating components are typically installed between the end plates and the end pressure plates to ensure insulation between them. However, during production operation, iron filings and dust may adhere to the insulating components, significantly reducing the insulation between the end plates and the end pressure plates, thus posing a risk of short circuits to the electrolyzer.

[0030] Based on this, this application proposes an electrolytic cell aimed at solving the problem that the insulation of the insulating components in existing electrolytic cells decreases during production. Specifically, Figures 1 to 4 This is a schematic diagram of the structure of the electrolytic cell provided in this application.

[0031] Please see Figure 1 and Figure 2 In one embodiment of this application, the electrolytic cell 100 includes a plate structure 1 and an insulating structure 2. The plate structure 1 includes two plates 11 and an insulating portion 12 disposed between the two plates 11. At least one of the plates 11 is configured as a support plate. The insulating structure 2 includes a covering portion 21 configured as an insulating material. The covering portion 21 covers the outer surface of the insulating portion 12 and can extend to cover at least a portion of the outer surface of the support plate.

[0032] It should be noted that the plate 11 can be made of various materials, such as low-carbon steel or nickel, and the embodiments provided in this application do not limit this. Furthermore, the plate 11 can have various shapes, such as circular, rectangular, or polygonal, and the embodiments provided in this application do not limit this. Additionally, please refer to... Figure 1 The plate 11 can be an end pressure plate 11a, an end electrode plate 11b, an intermediate electrode plate 11c, or an electrode plate 11d, etc. Some embodiments provided in this application do not limit this. Furthermore, the insulating part 12 can be of various types, such as an insulating gasket or insulating adhesive, as long as it can isolate the two plates 11. Some embodiments provided in this application do not limit this.

[0033] It should also be noted that "at least one of the plates 11 is set as a support plate" means that either one plate 11 can be set as a support plate, or two plates 11 can be set as support plates. Some embodiments provided in this application do not limit this. In addition, "the covering part 21 covers the outer surface of the insulating part 12" means that the covering part 21 completely encloses the insulating part 12 to prevent dust or iron filings from falling onto the insulating part 12. "The covering part 21 can extend to cover at least a portion of the outer surface of the support plate" means that the covering part 21 can extend to cover part of the support plate or extend to cover the entire support plate. Some embodiments provided in this application do not limit this.

[0034] In this embodiment, by providing an insulating part 12, the two plates 11 are isolated to prevent them from being electrically connected. The covering part 21 can cover at least part of the supporting plate to seal the gap between the insulating part 12 and the supporting plate, reducing the penetration of water and oxygen into the contact surface between the insulating part 12 and the supporting plate. This not only prevents the insulation of the electrolytic cell 100 from decreasing, but also prevents the insulating part 12 from aging prematurely due to water and oxygen intrusion, thus helping to extend the life of the insulating part 12. At the same time, by providing an insulating covering part 21, the insulating part 12 is isolated from the external environment to prevent the insulation of the insulating part 12 from decreasing due to dust or iron filings falling on it, thus ensuring that the insulating part 12 can maintain insulation. This solves the problem that the insulation of the insulating parts of the existing electrolytic cell 100 will decrease during production.

[0035] Furthermore, the covering portion 21 includes insulating tape or insulating adhesive. Thus, using insulating tape or insulating adhesive in the covering portion 21 enables continuous and seamless coverage of the insulating portion 12 and part of the supporting plate, effectively filling the tiny gaps between the insulating portion 12 and the supporting plate, effectively blocking the penetration paths of water and oxygen, and significantly improving sealing and insulation reliability. In addition, due to the good flexibility and adhesion of insulating tape, it is easy to wrap around complex structural surfaces, adapting to different shapes of the connection area between the insulating portion 12 and the plate 11. Insulating adhesive, on the other hand, can achieve more uniform coverage through coating or other methods, and is particularly suitable for compact structures or areas difficult to wrap, enhancing the integrity and adhesion of the covering.

[0036] Because applying adhesive requires surface treatment of the plate 11 and a curing time, production efficiency is reduced. Furthermore, during disassembly and maintenance, residual old adhesive needs to be cleaned, which is detrimental to maintenance. Insulating tape, on the other hand, is simple, efficient, and easy to replace, effectively improving the maintenance efficiency of the electrolytic cell 100. Therefore, in this embodiment, the covering part 21 is insulating tape. Further, various types of insulating tape are used. Specifically, in this embodiment, the insulating tape includes polytetrafluoroethylene (PTFE) tape, silicone tape, rubber tape, vinyl ester tape, or fluororubber tape. PTFE tape has extremely low surface energy and excellent chemical inertness, effectively resisting strong alkali corrosion, and has a low coefficient of friction, making it easy to install. Silicone tape has good flexibility and wide temperature range adaptability, maintaining sealing performance even under alternating high and low temperatures. Rubber tape and vinyl ester tape have strong mechanical strength and tear resistance, able to withstand stress during assembly. Fluororubber tape combines high temperature resistance, oil resistance, aging resistance, and excellent airtightness, making it particularly suitable for the electrolytic cell 100 structure, which requires high sealing reliability. By selecting the above-mentioned specific insulating tape, the most suitable covering material can be flexibly selected according to different working conditions. While ensuring insulation performance, the durability and reliability of the covering part 21 in complex operating environments are further improved, effectively preventing insulation failure caused by material deterioration, extending the overall service life of the electrolytic cell 100, and improving the safety and stability of equipment operation.

[0037] When the thickness of the covering portion 21 is insufficient, pinholes, cracks, or localized weak areas are prone to occur, which increases the risk of water and oxygen penetration and affects the long-term stability of the insulation portion 12. Therefore, please refer to some embodiments provided in this application. Figure 1 and Figure 3 The thickness of the covering portion 21 is D, where D ≥ 1 mm. This ensures that the covering portion 21 has sufficient physical thickness and structural integrity, effectively improving its insulation performance and barrier capability.

[0038] In one embodiment provided in this application, please refer to Figure 1 and Figure 2 One of the plates 11 is configured as an end pressure plate 11a, and the other plate 11 is configured as an end electrode plate 11b. In this way, the covering part 21 can cover the end pressure plate 11a and the end electrode plate 11b, which can both wrap the insulating part 12 between the end pressure plate 11a and the end electrode plate 11b and seal the gap between the end pressure plate 11a and the end electrode plate 11b and the insulating part 12.

[0039] In another embodiment provided in this application, please refer to Figure 1 and Figure 4One of the plates 11 is set as an intermediate electrode plate 11c, and the other plate 11 is set as an electrode plate 11d. In this way, the covering part 21 can cover the intermediate electrode plate 11c and the electrode plate 11d, which can both wrap the insulating part 12 between the end pressure plate 11a and the end electrode plate 11b and close the gap between the end pressure plate 11a and the end electrode plate 11b and the insulating part 12.

[0040] Further, please refer to Figure 2 and Figure 4 The covering portion 21 includes a first covering section 211 and a second covering section 212 connecting the first covering section 211. The first covering section 211 extends along the width direction of the electrolytic cell 100 to cover the side end face of the end plate 11a or the intermediate electrode plate 11c. The second covering section 212 extends along the length direction of the electrolytic cell 100 to cover the peripheral side face of the end plate 11b or the electrode plate 11d. In this way, by setting the first covering section 211 and the second covering section 212, the covering portion 21 can be adapted to the shape of the end plate 11b and the end plate 11a or the intermediate electrode plate 11c and the electrode plate 11d, so that the covering portion 21 can be completely attached to the end plate 11b and the end plate 11a or the intermediate electrode plate 11c and the electrode plate 11d, thereby helping to improve the sealing effect of the covering portion 21.

[0041] Understandably, please refer to Figure 2 When the first covering section 211 covers the outer surface of the end plate 11a, the second covering section 212 covers the outer surface of the end plate 11b. Please refer to [link to relevant documentation]. Figure 4 When the first coating segment 211 covers the outer surface of the intermediate electrode plate 11c, the second coating segment 212 covers the outer surface of the electrode plate 11d.

[0042] Please refer to the embodiments provided in this application. Figure 1 and Figure 2 The length of the end plate 11a or the intermediate electrode plate 11c in the width direction of the electrolytic cell 100 is L1, the length of the electrode plate 11d in the width direction of the electrolytic cell 100 is L2, and the covering length of the first covering section 211 on the end plate 11a or the intermediate electrode plate 11c is H1, wherein 5mm≤H1≤ / 2. Since the end plate 11a or the intermediate electrode plate 11c covered by the first covering section 211 is too short, it is not easy to seal the gap between the end plate 11a or the intermediate electrode plate 11c and the insulating part 12. On the contrary, if the covering is too long, the material consumption will be large and the cost will be high. Therefore, in this embodiment, 5mm≤H1≤ / 2 can both seal the gap between the end plate 11a or the intermediate electrode plate 11c and the insulating part 12 and save materials, thereby helping to control costs.

[0043] Please refer to the embodiments provided in this application. Figure 2 and Figure 4 The length of the electrode plate 11d or the end electrode plate 11b in the length direction of the electrolytic cell 100 is L3, and the covering length of the second covering section 212 on the electrode plate 11d is H2, wherein 5mm≤H2≤L3. If the end electrode plate 11b or the electrode plate 11d covered by the second covering section 212 is too short, it will be difficult to seal the gap between the end electrode plate 11b or the electrode plate 11d and the insulating part 12. Conversely, if the covering is too long, the material consumption will be too large and the cost will be high. Therefore, in this embodiment, 5mm≤H2≤L3 can both seal the gap between the end electrode plate 11b or the electrode plate 11d and the insulating part 12 and save materials, thereby helping to control costs.

[0044] Please refer to some embodiments provided in this application. Figure 1 and Figure 3 Both plates 11 are configured as electrode plates 11d, so that the covering part 21 can cover the two electrode plates 11d, which can both wrap the insulating part 12 between the two electrode plates 11d and seal the gap between the electrode plate 11d and the insulating part 12.

[0045] Furthermore, the length of the electrode plate 11d in the length direction of the electrolytic cell 100 is L3, and the covering length of the covering part 21 on the electrode plate 11d is H3, wherein 5mm≤H3≤L3. If the covering part of the electrode plate 11d is too short, it will be difficult to seal the gap between the electrode plate 11d and the insulating part 12. Conversely, if the covering part is too long, the material consumption will be too large and the cost will be high. Therefore, in this embodiment, 5mm≤H3≤L3 can both seal the gap between the electrode plate 11d and the insulating part 12 and save materials, thereby helping to control costs.

[0046] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An electrolytic cell, characterized in that, include A plate structure comprising two plates and an insulating portion disposed between the two plates, wherein at least one of the plates is configured as a load-bearing plate; and An insulating structure includes a covering portion configured as an insulating material, the covering portion completely covering the outer surface of the insulating portion and extending to cover at least a portion of the outer surface of the support plate.

2. The electrolytic cell as described in claim 1, characterized in that, The covering part includes insulating tape or insulating adhesive.

3. The electrolytic cell as described in claim 2, characterized in that, The insulating tape includes polytetrafluoroethylene tape, silicone tape, rubber tape, vinyl ester tape, or fluororubber tape.

4. The electrolytic cell as described in claim 1, characterized in that, The thickness of the covering part is D, where D≥1mm.

5. The electrolytic cell according to any one of claims 1 to 4, characterized in that, One of the plates is configured as an end pressure plate, and the other plate is configured as an end electrode plate; or... One of the plates is configured as an intermediate electrode plate, and the other plate is configured as an electrode plate.

6. The electrolytic cell as described in claim 5, characterized in that, The coating portion includes a first coating section and a second coating section connected to the first coating section. The first coating section extends along the width direction of the electrolytic cell to cover the side end face of the end plate or intermediate electrode plate, and the second coating section extends along the length direction of the electrolytic cell to cover the peripheral side face of the end plate or the electrode plate.

7. The electrolytic cell as described in claim 6, characterized in that, The length of the end plate or the intermediate electrode plate in the width direction of the electrolytic cell is L1, the length of the electrode plate in the width direction of the electrolytic cell is L2, and the covering length of the first covering segment on the end plate or the intermediate electrode plate is H1, wherein 5mm≤H1≤ / 2.

8. The electrolytic cell as described in claim 6, characterized in that, The length of the electrode plate or the end electrode plate in the length direction of the electrolytic cell is L3, and the coating length of the second coating section on the electrode plate is H2, wherein 5mm≤H2≤L3.

9. The electrolytic cell according to any one of claims 1 to 4, characterized in that, Both plates are configured as electrode plates.

10. The electrolytic cell as described in claim 9, characterized in that, The length of the electrode plate in the length direction of the electrolytic cell is L3, and the covering length of the coating part on the electrode plate is H3, wherein 5mm≤H3≤L3.

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