Support member and electrolytic cell

Abstract

The utility model discloses a supporting piece and an electrolytic bath, and relates to the technical field of electrolytic baths, the supporting piece comprises a first abutting layer, a second abutting layer and a supporting layer, the first abutting layer comprises a plurality of first abutting parts used for abutting against electrodes in the electrolytic bath, and the second abutting layer comprises a plurality of second abutting parts used for abutting against electrodes in the electrolytic bath; the plurality of first abutting parts are arranged at intervals and are used for providing a space for gas generated by the electrode side to escape; the second abutting layer is used for abutting against a polar plate in the electrolytic cell; the supporting layer comprises a plurality of bent elastic supporting parts fixedly connected between the first abutting part and the second abutting layer, and the bent elastic supporting parts are provided with via holes allowing electrolyte in the electrolytic cell to flow. The utility model aims to guarantee the structural stability of the electrolytic cell while guaranteeing the stable contact of each layer structure of the electrolytic cell.

Description

Technical Field

[0001] This application relates to the field of electrolytic cell technology, specifically to a support member and an electrolytic cell. Background Technology

[0002] The support component, located between the electrodes and bipolar plates, primarily serves to transmit current and support the electrolyte flow field. In related technologies, a relatively strong compressive force needs to be applied to the support component to ensure stable contact between the various layers of the electrolyzer. However, excessive compressive force can easily damage the thin diaphragm, thereby affecting the structural stability of the electrolyzer. Utility Model Content

[0003] The main objective of this application is to provide a support and an electrolytic cell that ensures stable contact between the various layers of the electrolytic cell while maintaining the structural stability of the electrolytic cell.

[0004] To achieve the above objectives, the support element proposed in this application is applied to an electrolytic cell, and the support element includes:

[0005] The first abutting layer includes a plurality of first abutting portions for abutting the electrodes in the electrolytic cell, and the plurality of first abutting portions are spaced apart to provide space for the gas generated on the electrode side to escape;

[0006] The second abutment layer is used to abut against the electrode plate in the electrolytic cell;

[0007] The support layer includes a plurality of bent elastic support portions fixedly connected between the first abutment portion and the second abutment layer, and the bent elastic support portions are provided with through holes for the electrolyte in the electrolytic cell to flow.

[0008] In one embodiment, the first contact portion is provided with a vent hole, through which gas generated on the electrode side can escape.

[0009] In one embodiment, the contact area of ​​the first contact portion is greater than or equal to the area of ​​the interval between two adjacent first contact portions.

[0010] In one embodiment, the second abutting layer includes a plurality of second abutting portions spaced apart from each other, the first abutting portions and the second abutting portions being staggered and alternately connected in sequence by the bent elastic support portion.

[0011] In one embodiment, the bent elastic support portion includes two support sub-parts distributed along the distribution direction of the first abutment layer and the second abutment layer. The two support sub-parts are respectively connected to the first abutment portion and the second abutment portion. The two support sub-parts of the same bent elastic support portion protrude in opposite directions. The two support sub-parts connected to the same first abutment portion or the same second abutment portion protrude in opposite directions.

[0012] In one embodiment, the support sub-part is arranged in an arc shape.

[0013] In one embodiment, the support sub-part and the first abutting part or the second abutting part connected thereto are smoothly connected.

[0014] In one embodiment, the two support sub-parts are directly connected.

[0015] In one embodiment, the two support sub-parts are indirectly connected by a bending structure.

[0016] In one embodiment, both the first abutting portion and the second abutting portion are plate-shaped.

[0017] In one embodiment, the sum of the widths of the plurality of first abutment portions is W1, and the width of the support member is W2, where 0.3 ≤ W1 / W2 < 0.8.

[0018] In one embodiment, the width of the first abutting portion is W3, where 2mm ≤ W ≤ 12mm.

[0019] In one embodiment, the distance between two adjacent first abutment portions is L1, where 2mm ≤ L1 ≤ 12mm.

[0020] In one embodiment, the distance between the first abutment layer and the second abutment layer is L2, where 1mm ≤ L2 ≤ 7mm.

[0021] In one embodiment, the thickness of the first abutment layer, the second abutment layer, and the bent elastic support portion is H, where 0.1mm ≤ H ≤ 0.5mm.

[0022] In one embodiment, the support member is configured as a single piece.

[0023] In one embodiment, the support member is integrally formed by bending a perforated plate.

[0024] This application also proposes an electrolytic cell, including an electrode, a plate, a diaphragm, and the aforementioned support member, wherein the plate, the support member, the electrode, and the diaphragm are arranged sequentially, and the support member abuts against the electrode through a first abutting layer and abuts against the plate through a second abutting layer.

[0025] The technical solution of this application uses a bent elastic support portion to fix the support between the first abutment portion and the second abutment layer. The bent elastic support portion gives the support a certain elastic deformation capability, ensuring close contact between the various layers of the electrolytic cell without applying too much compressive force. Even if the diaphragm is relatively thin, it is not easily damaged, which helps to ensure the structural stability of the electrolytic cell. Furthermore, the elastic deformation capability of the bent elastic support portion also improves the adaptability of the support to diaphragms with different types, thicknesses, and heights, increasing the versatility and flexibility of the support. Thus, the support can be matched with various types of diaphragms, facilitating the selection of superior diaphragms to improve the performance of the electrolytic cell. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 A cross-sectional view of an embodiment of the support provided in this application;

[0028] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 3 for Figure 1 A magnified view of a section at point A in the middle;

[0030] Figure 4 A cross-sectional view of another embodiment of the support provided in this application;

[0031] Figure 5 A cross-sectional view of yet another embodiment of the support provided in this application;

[0032] Figure 6 A cross-sectional view of yet another embodiment of the support provided in this application;

[0033] Figure 7 A schematic diagram of the structure of one embodiment of the support provided in this application;

[0034] Figure 8 A top view of an embodiment of the support provided in this application;

[0035] Figure 9 A partial cross-sectional view of an embodiment of the electrolytic cell provided in this application.

[0036] Explanation of icon numbers:

[0037] 10. Support component; 20. Electrode; 30. Electrode plate; 40. Diaphragm; 100. First abutment layer; 200. Second abutment layer; 300. Support layer; 110. First abutment part; 210. Second abutment part; 310. Bending elastic support part; 111. First abutment surface; 112. Vent hole; 211. Second abutment surface; 311. Support sub-part; 312. Bending structure.

[0038] 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

[0039] The technical solutions of the 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 the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators 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 indicators will also change accordingly.

[0041] Furthermore, if the embodiments of 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, a feature 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 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 in this application.

[0042] This application proposes a support member 10.

[0043] Please see Figure 1 , Figure 2 and Figure 7In one embodiment of this application, the support member 10 is applied to an electrolytic cell. The support member 10 includes a first abutment layer 100, a second abutment layer 200, and a support layer 300. The first abutment layer 100 includes a plurality of first abutment portions 110 for abutting the electrodes 20 in the electrolytic cell. The plurality of first abutment portions 110 are spaced apart to provide space for the gas generated on the electrode 20 side to escape. The second abutment layer 200 is used to abut the electrode plate 30 in the electrolytic cell. The support layer 300 includes a plurality of bent elastic support portions 310 fixedly connected between the first abutment portions 110 and the second abutment layer 200. The bent elastic support portions 310 are provided with through holes for the flow of electrolyte in the electrolytic cell.

[0044] Specifically, the support 10 is located between the electrode 20 and the electrode plate 30 in the electrolytic cell. Its main functions are current transmission, supporting the electrolyte flow field space, and maintaining close contact between the electrode plate 30 and the electrode 20 (diaphragm 40) through its structural thickness. The support 10 can be made of a metal material resistant to alkali corrosion (such as nickel, stainless steel, or nickel-plated low-carbon steel), thus giving it excellent conductivity and structural strength.

[0045] The first abutment layer 100 includes a plurality of first abutment portions 110. A first abutment surface 111 is formed on the side of each first abutment portion 110 opposite to the second abutment layer 200. The first abutment surface 111 of the first abutment portion 110 is used to abut against the electrode 20 in the electrolytic cell. The plurality of first abutment portions 110 are spaced apart, and the space between two adjacent first abutment portions 110 provides an escape channel for gas generated on the electrode 20 side, preventing gas accumulation that could cause local pressure increases or uneven current conduction. The second abutment layer 200 has a second abutment surface 211 formed on the side of the second abutment layer 100 opposite to the first abutment layer 100. The second abutment surface 211 of the first abutment portions 110 is used to abut against the electrode plate 30 in the electrolytic cell, ensuring good contact between the electrode plate 30 and the support member 10 and maintaining structural stability.

[0046] The support layer 300 connects the first abutment layer 100 and the second abutment layer 200, providing overall support. The support layer 300 includes multiple bent elastic support portions 310, each with a specific bending shape, giving the support member 10 elastic deformation capability, allowing it to deform appropriately under external force. Each bent elastic support portion 310 has a through-hole to allow electrolyte flow, ensuring sufficient electrolyte flow, effective ion migration during electrolysis, maintaining electrolyte concentration balance, avoiding performance degradation caused by local concentration gradients, and thus improving electrolysis efficiency.

[0047] The bent elastic support 310 gives the entire support 10 a certain degree of elasticity, allowing it to automatically adjust the compression amount according to the thickness of the diaphragm 40 during installation or operation. For thinner or more flexible diaphragms 40, it is not necessary to apply large extrusion forces to ensure close contact between the various layers of the electrolytic cell, avoiding damage or deformation of the diaphragm 40 due to excessive compression. Even if the diaphragm is relatively thin, it is not easily damaged, which helps to ensure the structural stability of the electrolytic cell. The elastic design of the bent elastic support 310 also improves the adaptability of the support 10 to diaphragms 40 with different types, thicknesses, and heights, enhancing the versatility and flexibility of the support 10. Thus, the support 10 can be matched with various types of diaphragms 40, facilitating the selection of superior diaphragms 40 to improve the performance of the electrolytic cell.

[0048] Understandably, during the operation of the electrolytic cell, the support 10 is sandwiched between the electrode 20 and the electrode plate 30, contacting the electrode 20 through the first abutment layer 100 and the electrode plate 30 through the second abutment layer 200. The elastic support layer 300 undergoes slight deformation under pressure applied when the diaphragm 40 swells, ensuring tight contact between the contact surfaces and guaranteeing close contact between the layers of the electrolytic cell without applying excessive pressure to the diaphragm 40 and causing damage. Gas generated from the surface of the electrode 20 is smoothly discharged through the gaps between the first abutment portions 110; the electrolyte circulates through the perforations in the support layer 300, maintaining the stability of the electrolytic reaction.

[0049] Furthermore, compared to the traditional contact method between the surface and point of the nipple plate, the first abutment layer 100 and the second abutment layer 200 of this application can abut against the electrode 20 and the electrode plate 30 respectively through their respective abutment surfaces, thereby increasing the contact area between the first abutment layer 100 and the electrode 20 and the second abutment layer 200 and the electrode plate 30, reducing the contact resistance of the support member 10, and thus improving the performance of the electrolytic cell.

[0050] Compared to rigid electrode support structures, the support member 10 of this application has a certain degree of elasticity, and can maintain a certain contact pressure through elastic deformation as needed. During this process, the contact resistance is reduced due to the presence of contact pressure, thereby improving the overall electrical performance of the structure.

[0051] Compared to flexible electrode support structures, the support member 10 of this application has stronger resilience. Under long-term pressure working environment, it will not reduce the contact pressure due to excessive loss of elasticity, thereby causing the contact resistance to increase.

[0052] The technical solution of this application uses a bent elastic support 310 fixedly connected between the first abutment portion 110 and the second abutment layer 200. The bent elastic support 310 gives the support member 10 a certain elastic deformation capability, ensuring close contact between the various layers of the electrolytic cell without applying too much compressive force. Even if the diaphragm is relatively thin, it is not easily damaged, which helps to ensure the structural stability of the electrolytic cell. Furthermore, the elastic deformation capability of the bent elastic support also improves the adaptability of the support member 10 to diaphragms 40 with different types, thicknesses, and heights, thus improving the versatility and flexibility of the support member 10. As a result, the support member 10 can be matched with various types of diaphragms 40, making it convenient to select superior diaphragms 40 to improve the performance of the electrolytic cell.

[0053] In one implementation, please refer to Figure 7 and Figure 8 The first contact portion 110 is provided with a vent hole 112, through which gas generated on the electrode 20 side escapes.

[0054] The first contact portion 110 abuts against the electrode 20. By providing vent holes 112 on the first contact portion 110, the gas generated on the electrode 20 side can escape more quickly from the electrolysis area through the vent holes 112, improving the permeability of the part of the support member 10 in contact with the electrode 20. Furthermore, by providing gas escape space at intervals between the first contact portions 110, the gas escape space on the electrode 20 side is further increased, improving gas escape efficiency and reducing the residence time of gas on the electrode 20 surface, thereby reducing the risk of a decrease in local reaction rate due to gas accumulation. It also reduces the uneven current distribution caused by gas accumulation on the electrode 20 surface, thus helping to improve the efficiency of the entire electrolysis process and the quality of the product. The vent holes 112 can be circular or near-circular, polygonal or near-polygonal, or irregular in shape.

[0055] In one implementation, please refer to Figure 1 and Figure 7 The contact area of ​​the first contact portion 110 is greater than or equal to the area between two adjacent first contact portions 110.

[0056] While ensuring the gas overflow rate, the contact area of ​​the first contact portion 110 is greater than or equal to the area between two adjacent first contact portions 110, thereby increasing the contact area between the first contact portion 110 and the electrode 20. This ensures sufficient contact between the first contact portion 110 and the electrode 20, reduces contact resistance, and improves the conductivity of the support member 10, thus enhancing the performance of the electrolytic cell. Furthermore, the larger contact area ensures more uniform current distribution, reduces hot spot formation, and extends the lifespan of the electrode 20. Even with varying thicknesses of the diaphragm 40 or slight deformation of the electrode 20, the first contact portion 110 and the electrode 20 maintain good contact, making the support member 10 more adaptable.

[0057] In other embodiments, the contact area of ​​the first contact portion 110 may also be smaller than the area between the plurality of first contact portions 110.

[0058] In one implementation, please refer to Figure 1 and Figure 2 The second abutment layer 200 includes a plurality of second abutment portions 210 spaced apart from each other. The first abutment portion 110 and the second abutment portion 210 are staggered and alternately connected by a bent elastic support portion 310.

[0059] The first abutment portion 110 and the second abutment portion 210 are staggered and alternately connected by bent elastic support portions 310 to form an integral structure. This not only increases the complexity and strength of the support structure but also better adapts to different load conditions, making the overall structure more stable and able to withstand greater pressure without easily being damaged. Multiple spaced-apart second abutment portions 210 are used to abut against the electrode plates 30 in the electrolytic cell. The spaced-apart arrangement of multiple second abutment portions 210 facilitates the free flow of electrolyte over a wider range. The second abutment layer 200 has a similar structure to the first abutment layer 100, thereby reducing processing costs.

[0060] Furthermore, the second abutment portion 210 can also be provided with vent holes 112, so that the second abutment layer 200 has the same structure as the first abutment layer 100, further reducing processing costs. In addition, the first abutment layer 100 and the second abutment layer 200 are interchangeable, eliminating the need to strictly distinguish between the first abutment layer 100 facing the electrode 20 and the second abutment layer 200 facing the electrode plate 30 during installation, greatly simplifying assembly operations. Even if the orientation is incorrect during installation, it will not affect the functional performance of the support member 10, thereby reducing the risk of human error.

[0061] In other embodiments, there may be no interval between the plurality of second contact portions 210.

[0062] In one implementation, please refer to Figure 2The bent elastic support portion 310 includes two support sub-parts 311 distributed along the distribution direction of the first abutting layer 100 and the second abutting layer 200. The two support sub-parts 311 are respectively connected to the first abutting portion 110 and the second abutting portion 210. The two support sub-parts 311 of the same bent elastic support portion 310 protrude in opposite directions. The two support sub-parts 311 connected to the same first abutting portion 110 or the same second abutting portion 210 protrude in opposite directions.

[0063] Two support sub-parts 311 of the same bent elastic support portion 310 are respectively connected to the first abutment portion 110 and the second abutment portion 210. In each bent elastic support portion 310, the two support sub-parts 311 are not connected in a straight line, but are bent or protruding in opposite directions, giving the bent elastic support portion 310 a bent structure, thereby allowing the support member 10 to obtain a certain degree of elasticity through the bent elastic support portion 310. Furthermore, the bent elastic support portion 310 has higher compressive and tensile strength, and can better withstand forces from all directions. For the same first abutment portion 110 or the same second abutment portion 210, the two support sub-parts 311 connected to it are also bent or protruding in opposite directions, that is, the two support sub-parts 311 connected to the same first abutment portion 110 or the same second abutment portion 210 are symmetrical, which not only improves the elasticity of the bent elastic support portion 310, but also enhances the overall structural strength and rigidity of the support member 10.

[0064] In other embodiments, the two support sub-parts 311 connected to the same first abutting part 110 or the same second abutting part 210 may also protrude toward each other.

[0065] In one implementation, please refer to Figure 2 The support sub-part 311 is arranged in an arc shape.

[0066] The support sub-part 311 is arc-shaped, possessing a smooth curve that can be spherical, elliptical, or other forms. This arc-shaped design allows the support sub-part 311 to deform more flexibly under stress, thereby better maintaining contact pressure between the first contact part 110 and the electrode 20, and between the second contact part 210 and the electrode plate 30, thus reducing the contact resistance between the support member 10 and the electrode plate 30 or the electrode 20. The arc shape of the support sub-part 311 not only increases the elasticity of the bent elastic support part 310 but also facilitates gas escape and electrolyte flow, further improving electrolysis efficiency. The arc-shaped design also improves the fatigue resistance of the material, reducing fatigue damage caused by long-term loads and extending service life; it can also significantly improve structural performance without significantly increasing material usage, thereby reducing overall weight and production costs.

[0067] For other implementations, please refer to Figure 4The support sub-part 311 can also be square; please refer to Figure 5 The support sub-part 311 can also be tapered.

[0068] In one implementation, please refer to Figure 2 The support sub-part 311 and the first abutting part 110 or the second abutting part 210 connected thereto are smoothly connected.

[0069] The connection between the support sub-part 311 and the first abutment part 110 or the second abutment part 210 connected thereto is achieved through a continuous, smooth curve, which can be an arc or other form of smooth curve. There are no sharp corners or abrupt changes in the transition region between the support sub-part 311 and the first abutment part 110 or the second abutment part 210 connected thereto, thus avoiding stress concentration; and ensuring a tighter and smoother contact between the first abutment part 110 and the electrode 20, and between the second abutment part 210 and the electrode plate 30, avoiding localized poor contact caused by sharp corners, thereby improving the uniformity of current distribution.

[0070] In one implementation, please refer to Figure 2 The two support sub-parts 311 are directly connected.

[0071] The two support sub-parts 311 are directly connected, that is, the same bent elastic support part 310 has only two support sub-parts 311 and no other connecting structure, thereby reducing the complexity of the support member 10 structure, reducing the amount of material used and the processing difficulty of the support member 10, and thus reducing the manufacturing cost.

[0072] In another implementation, please refer to Figure 6 The two support sub-parts 311 are indirectly connected by a bending structure 312.

[0073] Each bent elastic support portion 310 still consists of two support sub-portions 311, which are respectively connected to the first abutment portion 110 and the second abutment portion 210. The two support sub-portions 311 are no longer directly connected, but are indirectly connected through a bending structure 312. This bending structure 312 can be an even number of structures identical to the support sub-portions 311, thereby providing the entire bent elastic support portion 310 with greater flexibility and deformability.

[0074] In one implementation, please refer to Figure 2 and Figure 7 Both the first abutting part 110 and the second abutting part 210 are plate-shaped.

[0075] Both the first contact portion 110 and the second contact portion 210 are plate-shaped, which helps to increase the contact area between the first contact surface 111 of the first contact portion 110 and the electrode 20, and between the second contact surface 211 of the second contact portion 210 and the electrode plate 30, ensuring a more uniform current distribution. At the same time, the larger contact area helps to reduce contact resistance, thereby improving current transmission efficiency and reducing energy loss. The plate-shaped design of the first contact portion 110 and the second contact portion 210 can also better distribute pressure, ensuring a uniform contact pressure distribution between the first contact surface 111 and the electrode 20, and between the second contact surface 211 and the electrode plate 30.

[0076] In one embodiment, the sum of the widths of the plurality of first abutment portions 110 is W1, the width of the support member 10 is W2, and 0.3 ≤ W1 / W2 < 0.8.

[0077] W1 / W2 reflects the spatial proportion of the first contact portion 110 in the entire support member 10, especially its contribution to the effective contact area or support capacity of the support member 10. When W1 / W2 < 0.3, the effective contact area of ​​the support member 10 is too small, which is not conducive to reducing the contact resistance of the support member 10; when 0.8 < W1 / W2 < 1, the spacing between two adjacent first contact portions 110 is too small, which is not conducive to the escape of gas generated on the electrode 20 side. By 0.3 ≤ W1 / W2 < 0.8, it is ensured that the gas generated on the electrode 20 side can escape smoothly and quickly, and it is also ensured that the support member 10 has a large area for direct contact with the electrode plate 30 or the electrode 20 to support the high current density operation of the electrolytic cell, thereby improving the electrolysis efficiency; at the same time, the larger contact area helps to reduce the contact resistance and improve the current transmission efficiency. Of course, the sum of the widths of the multiple second contact portions 210 can also be W1, and satisfy 0.3 ≤ W1 / W2 < 0.8.

[0078] In other embodiments, W1 / W2 may be greater than 0.8, such as a ratio of 0.85 or 0.88; or W1 / W2 may be less than 0.3, such as a ratio of 0.2, 0.25 or 0.28. In this case, the width of the first abutting portion 110 is less than the distance between two adjacent first abutting portions 110.

[0079] In one implementation, please refer to Figure 1 The width of the first abutting part 110 is W3, where 2mm ≤ W ≤ 12mm.

[0080] The width of the first contact portion 110 directly affects the contact area between the first contact portion 110 and the electrode 20.

[0081] When W3 = 2 mm, the width of the first abutment portion 110 is small enough, yet still provides sufficient contact area and mechanical support. This smaller width allows for applications requiring compact design or lightweight structures, such as small electrolytic cells.

[0082] When W3 = 12mm, the width of the first abutment portion 110 is relatively large, providing a larger contact area and higher mechanical strength. A larger width allows for applications requiring higher load-bearing capacity or a larger contact area, such as large industrial electrolytic cells or high current density applications. By designing the width of the first abutment portion 110 to be 2mm ≤ W3 ≤ 12mm, sufficient contact area is ensured for the support member, thereby reducing contact resistance and improving current transmission efficiency. Simultaneously, the wider first abutment portion 110 can distribute pressure more evenly, avoiding localized overpressure or underpressure problems and improving the overall structural stability. The wider first abutment portion 110 also provides higher mechanical strength, reducing deformation or damage caused by external forces or vibrations. Of course, the width of the second abutment portion 210 can also be W3, satisfying 2mm ≤ W ≤ 12mm.

[0083] In other embodiments, W3 can also be less than 2mm, such as W3 being 1.9mm, 1.5mm, etc.; W3 can also be greater than 12mm, such as W3 being 12.5mm, 13mm, etc.

[0084] In one implementation, please refer to Figure 3 The distance between two adjacent first contact parts 110 is L1, where 2mm≤L1≤12mm.

[0085] L1 refers to the center distance or edge spacing between two adjacent first contact portions 110. The size of L1 directly affects the overall layout, structural strength, bubble escape, and electrolyte flow performance of the support member 10. When L1 is close to 2 mm, the gap between adjacent first contact portions 110 is relatively small, suitable for scenarios requiring high-density arrangement. A smaller L1 value allows for the arrangement of more first contact portions 110 in a limited space, increasing the contact area and improving the support member 10's ability to support the electrode plate 30 or electrode 20, thereby providing a more uniform pressure distribution. When L1 is close to 12 mm, the gap between adjacent first contact portions 110 is relatively large, suitable for scenarios requiring more space for bubble escape or liquid flow. A larger L1 value provides more escape channels for gases generated during electrolysis and promotes electrolyte flow, reducing gas resistance and stagnation. By designing the spacing between two adjacent first abutment portions 110 to be 2mm≤L1≤12mm, it can be ensured that the bent elastic support portion 310 between adjacent first abutment portions 110 has sufficient rigidity and elasticity, and satisfies the requirement of the support member 10 to support the electrode plate 30 or electrode 20 and promote the flow of electrolyte. Of course, the spacing between two adjacent second abutment portions 210 can also be L1, satisfying 2mm≤L1≤12mm.

[0086] In other embodiments, L1 can also be less than 2mm, such as L1 being 1.9mm, 1.5mm, etc.; L1 can also be greater than 12mm, such as L1 being 12.5mm, 13mm, etc.

[0087] In one implementation, please refer to Figure 3 The distance between the first abutment layer 100 and the second abutment layer 200 is L2, where 1mm≤L2≤7mm.

[0088] L2 refers to the center distance or edge spacing between the first abutment layer 100 and the second abutment layer 200. It can be the distance between the geometric centers of the first abutment layer 100 and the second abutment layer 200, or the distance between the closest edges of the first abutment layer 100 and the second abutment layer 200. The size of L2 directly affects the overall layout of the support, structural strength, bubble escape, electrolyte flow performance, and the contact quality between the electrode and the support, and between the electrode and the support. When L2 is close to 1 mm, the gap between the first abutment layer 100 and the second abutment layer 200 is relatively small, suitable for scenarios requiring a compact design. When L2 is close to 7 mm, the gap between the first abutment layer 100 and the second abutment layer 200 is relatively large, suitable for scenarios requiring more space for bubble escape or liquid flow. A larger L2 value can provide more escape channels for gases generated during electrolysis and promote electrolyte flow, reducing gas resistance and stagnation. By designing the distance between the first abutment layer 100 and the second abutment layer 200 to be 1mm≤L2≤7mm, the bent elastic support portion 310 between the first abutment layer 100 and the second abutment layer 200 is ensured to have sufficient rigidity and elasticity, and also provides flexibility for bubble escape and liquid flow.

[0089] In other embodiments, L2 can also be less than 1 mm, such as L2 being 0.9 mm, 0.85 mm, etc.; L2 can also be greater than 7 mm, such as L2 being 7.5 mm, 8 mm, etc.

[0090] In one implementation, please refer to Figure 3 The thickness of the first abutting layer 100, the second abutting layer 200 and the bent elastic support portion 310 is H, where 0.1mm≤H≤0.5mm.

[0091] The size of H directly affects the mechanical strength, elastic properties, weight, and manufacturing difficulty of the support component. When H is close to 0.1 mm, the first abutment layer 100, the second abutment layer 200, and the bent elastic support portion 310 are relatively thin, suitable for scenarios requiring lightweight design or extremely limited space. At this size, the bent elastic support portion 310 is more prone to elastic deformation, and it also reduces the space occupied by the support component 10 in the fluid channel, providing more space for bubble escape and liquid flow. When H is close to 0.5 mm, the first abutment layer 100, the second abutment layer 200, and the bent elastic support portion 310 are relatively thick, giving the support component sufficient rigidity and compressive strength, providing higher mechanical strength and fatigue resistance. By designing the thickness of the first abutment layer 100, the second abutment layer 200, and the bent elastic support 310 to be 0.1mm≤H≤0.5mm, the support 10 is ensured to meet mechanical strength requirements, optimize fluid dynamics performance, reduce energy loss, and improve current transmission efficiency, thereby enhancing the overall production efficiency of the electrolytic cell.

[0092] In other embodiments, H can also be less than 0.1 mm, such as H being 0.09 mm, 0.085 mm, etc.; H can also be greater than 0.5 mm, such as H being 0.55 mm, 0.6 mm, etc.

[0093] In one implementation, please refer to Figure 1 and Figure 7 The support component 10 is configured as a single piece.

[0094] The one-piece molded support 10 has no welds or seams, avoiding weak points that may be caused by welding or other connection methods, making the entire structure more robust and able to withstand higher mechanical loads; it reduces the risk of local stress concentration, thereby improving fatigue resistance and service life; it eliminates the need for complex assembly steps, saving a lot of time and labor costs; the one-piece molding ensures that the contact surface between the first abutment part 110 and the electrode 20 is flatter and more uniform, reducing contact resistance and improving current transmission efficiency.

[0095] In other embodiments, the bent elastic support portion 310 and the first abutment portion 110 may also be separately formed and then connected by welding.

[0096] In one implementation, please refer to Figure 1 and Figure 7 The support component 10 is formed by bending a perforated plate into one piece.

[0097] The support member 10 is formed by stretching a porous plate with vent holes 112 to create an overall bent structure. The stretching process allows the support member 10 to form a complex three-dimensional structure without disrupting the continuity of the porous plate material.

[0098] In other embodiments, the support member 10 can also be integrally processed using processes such as stamping or 3D printing.

[0099] This application also proposes an electrolytic cell, which includes an electrode plate 30, an electrode 20, a diaphragm 40, and a support member 10. The specific structure of the support member is as described in the above embodiments. Since this electrolytic cell adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0100] Please refer to Figure 9 The electrode plate 30, the support member 10, the electrode 20 and the diaphragm 40 are arranged in sequence. The support member 10 abuts against the electrode 20 through the first abutting surface 111 of the first abutting layer 100 and abuts against the electrode plate 30 through the second abutting surface 211 of the second abutting layer 200.

[0101] Multiple electrode plates 20 are stacked and arranged in an insulated manner, with adjacent electrode plates 20 connected together to form an electrolysis chamber. A diaphragm 40 is provided inside the electrolysis chamber to prevent hydrogen and oxygen gases from permeating each other. On opposite sides of the diaphragm 40, electrodes 20, support members 10, and electrode plates 30 are arranged in sequence, and the electrodes 20 are attached to the diaphragm 40.

[0102] The support member 1010 directly abuts against the electrode plate 30 via the second abutment surface 211 of the second abutment layer 200. When the support member 10 is subjected to a certain pressure, the deformation of the bent elastic support portion 310 maintains a certain contact pressure between the second abutment layer 200 and the electrode plate 30. The first abutment surface 111 of the first abutment layer 100 directly abuts against the electrode 20. When the support member 10 is subjected to a certain pressure, the deformation of the bent elastic support portion 310 maintains a certain contact pressure between the first abutment layer 100 and the electrode 20, thereby reducing the contact resistance of the support member 10 and improving the performance of the electrolytic cell. Moreover, the large contact area of ​​the first abutment surface 111 and the bent elastic design of the bent elastic support portion 310 reduce the risk of the support member 10 puncturing the diaphragm 40. The first abutment surface 111 also supports the diaphragm 40 through the electrode 20. Meanwhile, the first contact surface 111 contacting the electrode 20 and the second contact surface 211 contacting the electrode plate 30 can significantly improve current conduction performance, mechanical strength and system reliability.

[0103] 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. A support member applied to an electrolytic cell, characterized in that, include: The first abutting layer (100) includes a plurality of first abutting portions (110) for abutting the electrodes (20) in the electrolytic cell, and the plurality of first abutting portions (110) are spaced apart to provide space for the gas generated on the electrode (20) side to escape; The second abutment layer (200) is used to abut against the electrode plate (30) in the electrolytic cell; The support layer (300) includes a plurality of bent elastic support portions (310) fixedly connected between the first abutment portion (110) and the second abutment layer (200), and the bent elastic support portions (310) are provided with through holes for the electrolyte in the electrolytic cell to flow.

2. The support member as described in claim 1, characterized in that, The first contact portion (110) is provided with a vent hole (112) for the gas generated on the electrode (20) side to escape through the vent hole (112).

3. The support member as described in claim 2, characterized in that, The contact area of ​​the first contact portion (110) is greater than or equal to the area between two adjacent first contact portions (110).

4. The support member as described in claim 1, characterized in that, The second abutting layer (200) includes a plurality of second abutting portions (210) arranged at intervals between each other. The first abutting portion (110) and the second abutting portion (210) are staggered and alternately connected by the bent elastic support portion (310).

5. The support member as described in claim 4, characterized in that, The bent elastic support portion (310) includes two support sub-parts (311) distributed along the distribution direction of the first abutment layer (100) and the second abutment layer (200). The two support sub-parts (311) are respectively connected to the first abutment portion (110) and the second abutment portion (210). The two support sub-parts (311) of the same bent elastic support portion (310) protrude in opposite directions. The two support sub-parts (311) connected to the same first abutment portion (110) or the same second abutment portion (210) protrude in opposite directions.

6. The support member as described in claim 5, characterized in that, The support sub-part (311) is arranged in an arc shape.

7. The support member as described in claim 5, characterized in that, The support sub-part (311) and the first abutment part (110) or the second abutment part (210) connected thereto are smoothly connected.

8. The support member as described in claim 5, characterized in that, The two support sub-parts (311) are directly connected, or the two support sub-parts (311) are indirectly connected through a bending structure.

9. The support member as described in claim 5, characterized in that, Both the first abutting part (110) and the second abutting part (210) are plate-shaped.

10. The support member as claimed in claim 1, characterized in that, The sum of the widths of the plurality of first abutment portions (110) is W1, and the width of the support member (10) is W2, 0.3≤W1 / W2<0.8; And / or, the width of the first abutment portion (110) is W3, 2mm≤W3≤12mm; And / or, the distance between two adjacent first abutment portions (110) is L1, 2mm≤L1≤12mm; And / or, the distance from the first abutment layer (100) to the second abutment layer (200) is L2, 1mm≤L2≤7mm; And / or, the thickness of the first abutment layer (100), the second abutment layer (200) and the bent elastic support portion (310) is H, 0.1mm≤H≤0.5mm.

11. The support member as claimed in claim 1, characterized in that, The support member (10) is configured as a single piece.

12. The support member as claimed in claim 11, characterized in that, The support member (10) is integrally formed by bending a perforated plate.

13. An electrolytic cell, characterized in that, The device includes an electrode (20), an electrode plate (30), a diaphragm (40), and a support member (10) as described in any one of claims 1 to 12. The electrode plate (30), the support member (10), the electrode (20), and the diaphragm (40) are arranged in sequence. The support member (10) abuts against the electrode (20) through the first abutting layer (100) and abuts against the electrode plate (30) through the second abutting layer (200).

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