Polar plate and electrolytic cell
By uniquely designing and selecting materials for the flow guides of the electrolytic cell plates, their resistance to alkaline corrosion is enhanced, solving the problem of high maintenance frequency of the electrolytic cell and achieving cost savings and extended lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-03-31
AI Technical Summary
With the increasing size of electrolytic cells and repeated start-ups and shutdowns, the gas-liquid channels of the electrode plates are subject to more severe corrosion by alkaline solutions, leading to an increase in the frequency of electrolytic cell maintenance.
The uniquely designed flow guides, including fluid channels and flow grooves, are made of materials resistant to alkaline corrosion or have a thickened protective layer, or are integrally molded with the plate and pole frame to enhance the corrosion resistance of the flow guides.
This reduces the frequency of damage and failure of the flow guide, extends the service life of the electrode plates, and saves on the operation and production costs of the electrolytic cell.
Smart Images
Figure CN224062915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrolysis technology, and in particular to an electrode plate and an electrolytic cell. Background Technology
[0002] As electrolytic cells become larger and need to adapt to fluctuations in new energy sources, the size of electrolytic cells is increasing, and the frequency of repeated start-ups and shutdowns is also increasing. This leads to increased corrosion of the gas-liquid channels of the electrode plates by alkaline solutions, resulting in a higher frequency of electrolytic cell maintenance. Utility Model Content
[0003] The main purpose of this invention is to propose an electrode plate and an electrolytic cell that allows for the separate design of the flow guide to improve the corrosion resistance of the flow guide and thereby reduce the maintenance frequency of the electrolytic cell.
[0004] To achieve the above objectives, the electrode plate proposed in this utility model includes:
[0005] The plate body and the pole frame surrounding the plate body; and
[0006] A flow guide is connected to the plate and the pole frame. The flow guide has a fluid channel that extends through the pole along the axial direction and a flow guide groove that extends parallel to the plate. The flow guide groove is connected to the plate and communicates with the fluid channel.
[0007] In one embodiment, the pole frame has a connection port, and the flow guide is disposed at the connection port.
[0008] In one embodiment, the flow guide includes a plurality of first flow guides, the fluid channels on the first flow guides are configured as electrolysis product outlet channels, the plate is also connected to at least one first partition, the first partition has a connection port on each of its two sides distributed circumferentially along the pole frame, and a first flow guide is disposed at one of the connection ports.
[0009] In one embodiment, two first flow guides are provided, with the two first flow guides respectively corresponding to the anode and cathode of the electrode plate.
[0010] In one embodiment, the flow guide includes a plurality of second flow guides, the fluid channels on the second flow guides are configured as electrolyte inlet channels, the plate is also connected to at least one second partition, the second partition has a connection port formed on each of its two sides distributed circumferentially along the pole frame, and a second flow guide is disposed at one of the connection ports.
[0011] In one embodiment, the fluid channels of a plurality of second flow guides are connected, and at least one of the second flow guides forms a flow guide groove on each of its opposite sides corresponding to the anode and cathode surfaces of the plate.
[0012] In one embodiment, the connection port extends through the outer periphery of the pole frame.
[0013] In one embodiment, the fluid channel on the flow guide is configured as an electrolysis product outlet channel, and the electrode frame has an electrolyte inlet channel extending axially along the electrode plate and an electrolyte guide groove extending parallel to the plate body on the opposite side of the flow guide. The electrolyte guide groove is connected to the plate body and communicates with the electrolyte inlet channel.
[0014] In one embodiment, the flow guide is annular, with its inner circumferential side connected to the plate and its outer circumferential side connected to the pole frame.
[0015] In one embodiment, at least the entire flow guide is configured with a material resistant to alkaline corrosion.
[0016] In one embodiment, the material of the plate and the pole frame is the same as or different from the material of the flow guide.
[0017] In one embodiment, the plate and the pole frame are made of one of the following materials: carbon steel substrate with an outer protective layer, pure nickel, nickel alloy, pure titanium, titanium alloy, modified polytetrafluoroethylene, polysulfone, polyphenylene sulfide, and composite material; and the flow guide is made of one of the following materials: pure nickel, nickel alloy, pure titanium, titanium alloy, modified polytetrafluoroethylene, polysulfone, polyphenylene sulfide, and composite material.
[0018] In one embodiment, when the plate and the pole frame are made of metal and the flow guide is made of non-metal, or when the plate, the pole frame and the flow guide are made of the same material, the flow guide is integrally formed with the plate and the pole frame.
[0019] In one embodiment, the flow guide is formed separately and then connected to the plate and the pole frame.
[0020] In one embodiment, the plate and the pole frame are made of metal, and the flow guide is made of non-metal. The flow guide is integrally formed with the plate and the pole frame by sintering or insert injection molding.
[0021] In one embodiment, the flow guide is formed separately and then connected to the plate and the pole frame by welding, bonding or riveting.
[0022] This utility model also proposes an electrolytic cell, including the aforementioned electrode plates.
[0023] In this invention, the flow guide can be designed separately to enhance its resistance to alkaline corrosion. This reduces the frequency of damage and failure at the fluid channels and flow channels of the flow guide, thus decreasing the maintenance frequency of the electrolytic cell. When the flow guide's resistance to alkaline corrosion is higher than other areas, the corrosion resistance of different areas of the electrode plate can be relatively balanced with the intensity of corrosion it receives, preventing a situation where the corrosion in one area is much more severe than in another. This helps extend the service life of the electrode plate and saves on the operation and maintenance costs of the electrolytic cell. Furthermore, separating the flow guide and improving its corrosion resistance individually requires relatively lower costs, which helps save on electrode plate production costs and reduces the cost of replacing the electrode plate. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0025] Figure 1 A schematic diagram of the structure of an embodiment of the electrode plate provided by this utility model;
[0026] Figure 2 for Figure 1 A partial structural diagram of the electrode plate with the area between the two dashed lines removed;
[0027] Figure 3 An exploded structural diagram of an embodiment of the electrode plate provided by this utility model;
[0028] Figure 4 A schematic diagram of another embodiment of the electrode plate provided by this utility model;
[0029] Figure 5 for Figure 4 A partial structural diagram below the dashed line in the image;
[0030] Figure 6 A schematic diagram of another embodiment of the electrode plate provided by this utility model;
[0031] Figure 7 for Figure 6 A schematic diagram of the exploded structure of the electrode plates.
[0032] Explanation of icon numbers:
[0033] 100. Plate body;
[0034] 200, electrode frame; 210, connection port; 221, first partition; 222, second partition; 231, electrolyte inlet channel; 232, electrolyte guide tank;
[0035] 300. Flow guide; 301. Fluid channel; 302. Flow guide groove;
[0036] 310. First flow guide; 320. Second flow guide.
[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0038] 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 scope of protection of the present utility model.
[0039] It should be noted that if the embodiments of this utility model 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.
[0040] 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 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 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.
[0041] As electrolytic cells become larger and need to adapt to the fluctuations in new energy sources, the size of electrolytic cells is getting bigger and bigger, and the frequency of repeated start-ups and shutdowns is getting higher and higher. Under high temperature and high pressure conditions, the gas-liquid channels are more severely corroded by alkaline solutions. In addition, the leakage current caused by the increase in the size of the electrolytic cells is also increasing, and the reverse current caused by shutdown is also increasing. This leads to the intensification of galvanic corrosion when the electrolytic cells are shut down, resulting in a significant increase in the frequency of electrode plate maintenance.
[0042] In response, this utility model proposes an electrode plate.
[0043] Please see Figures 1 to 5 In one embodiment of this utility model, the electrode plate includes:
[0044] Plate 100 and pole frame 200 surrounding plate 100; and
[0045] A flow guide 300 is connected to the plate 100 and the pole frame 200. The flow guide 300 is provided with a fluid channel 301 that extends through the pole plate along its axial direction and a flow guide groove 302 that extends parallel to the plate 100. The flow guide groove 302 is connected to the plate 100 and communicates with the fluid channel 301.
[0046] Without loss of generality, the electrolyte used in the electrolytic cell is an alkaline solution. The fluid channel 301 and the guide groove 302 formed by the flow guide 300 allow the alkaline solution to flow in or out. Specifically, the alkaline solution in the fluid channel 301 can flow towards the plate surface under the guidance of the corresponding guide groove 302, thereby participating in the electrolysis reaction. The gaseous electrolysis products produced by the electrolysis reaction will carry the alkaline solution and flow towards the corresponding fluid channel 301 under the guidance of another guide groove 302, and finally be discharged from the electrolytic cell.
[0047] In this invention, the flow guide 300 can be designed separately to improve its resistance to alkaline corrosion. This reduces the frequency of damage and failure at the fluid channel 301 and flow guide groove 302 of the flow guide 300, thus reducing the maintenance frequency of the electrolytic cell. When the flow guide 300 has higher resistance to alkaline corrosion than other areas, the corrosion resistance of different areas of the electrode plate can be relatively balanced with the intensity of corrosion it receives, preventing a situation where the corrosion in one area is much more severe than in another. This helps extend the service life of the electrode plate and saves on the operation and maintenance costs of the electrolytic cell. Furthermore, separating the flow guide 300 and improving its corrosion resistance individually requires relatively lower costs, which helps save on the production costs of the electrode plate and reduces the cost of replacing the electrode plate.
[0048] In one embodiment, at least the entire flow guide 300 is configured with a material resistant to alkaline corrosion. Compared to plating an alkaline-resistant protective layer on a substrate that is not resistant to alkaline corrosion, configuring the entire flow guide 300 with an alkaline-resistant material improves its resistance to alkaline corrosion. Of course, in other embodiments, the flow guide 300, the plate 100, and the pole frame 200 may all be configured with an alkaline-resistant protective layer plating on a substrate that is not resistant to alkaline corrosion, but the plating thickness of the flow guide 300 may be greater.
[0049] The material of the plate 100 and the pole frame 200 can be the same as or different from the material of the flow guide 300.
[0050] When the materials of the plate body 100 and the electrode frame 200 are the same as those of the flow guide 300, the entire electrode plate is configured with a material resistant to alkaline corrosion. This greatly enhances the electrode plate's resistance to alkaline corrosion, thereby extending its service life and saving on the operating and maintenance costs of the electrolytic cell. In this case, the flow guide 300 can be integrally formed with the plate body 100 and the electrode frame 200, or it can be formed separately and then connected to the plate body 100 and the electrode frame 200.
[0051] When the materials of the plate body 100 and the electrode frame 200 are different from those of the flow guide 300, the plate body 100 and the electrode frame 200 do not need to be entirely made of materials resistant to alkaline corrosion. Instead, they can be coated with a protective layer resistant to alkaline corrosion on a substrate that is not resistant to alkaline corrosion. That is, this embodiment can balance the material cost and corrosion resistance of the electrode plate by setting the alkaline corrosion resistance of the flow guide 300 to a higher level. It is understood that the fluid channel 301 and the flow channel 302 formed by the flow guide 300 are more susceptible to alkaline corrosion. By configuring the entire flow guide 300 as a material resistant to alkaline corrosion, the corrosion resistance of different areas of the electrode plate can be relatively balanced with the intensity of corrosion it receives. This prevents the corrosion level in the fluid channel 301 and the flow channel 302 from being much more severe than in other areas, which helps to extend the service life of the electrode plate. Furthermore, the material requirements for the plate body 100 and the electrode frame 200 are not high, which can save on the material cost of the electrode plate.
[0052] In one embodiment, the plate 100 and the electrode frame 200 are made of metal, while the flow guide 300 is made of non-metal and is integrally formed with the plate 100 and the electrode frame 200. Specifically, the flow guide 300 is integrally formed with the plate 100 and the electrode frame 200 by sintering or insert injection molding. This integral forming process improves the connection stability between the flow guide 300 and the plate 100 and the electrode frame 200, which helps ensure the structural strength of the electrode plate. It also eliminates the assembly process between the flow guide 300 and the plate 100 and the electrode frame 200, thus improving the processing efficiency of the electrode plate.
[0053] In one embodiment, the flow guide 300, after being formed separately, is connected to the plate 100 and the electrode frame 200. Specifically, the flow guide 300 is connected to the plate 100 and the electrode frame 200 by welding, bonding, or riveting. This reduces the processing difficulty of the electrode plate, helps ensure the yield rate of the finished electrode plate, and the flow guide 300 can be conveniently and reliably connected to the plate 100 and the electrode frame 200, which helps ensure the structural stability of the electrode plate. In this embodiment, the material of the flow guide 300 can be the same as or different from the material of the plate 100 and the electrode frame 200.
[0054] Without loss of generality, the plate 100 and the pole frame 200 are made of one of the following materials: carbon steel substrate with an outer protective layer, pure nickel, nickel alloy, pure titanium, titanium alloy, modified polytetrafluoroethylene, polysulfone, polyphenylene sulfide, and composite materials. The flow guide 300 is made of one of the following materials: pure nickel, nickel alloy, pure titanium, titanium alloy, modified polytetrafluoroethylene, polysulfone, polyphenylene sulfide, and composite materials.
[0055] When the plate 100 and electrode frame 200 are made of carbon steel substrate with an outer protective layer, the outer protective layer can be made of pure nickel, nickel alloy, pure titanium, or titanium alloy, etc., and its material can be the same as or different from that of the flow guide 300. In this way, the corrosion resistance of the flow guide 300 is higher than that of the plate 100 and electrode frame 200, achieving a differentiated design of corrosion resistance in different areas of the electrode plate. This allows the corrosion resistance of different areas of the electrode plate to be relatively balanced with the intensity of corrosion it receives, which helps to extend the service life of the electrode plate and save on the operation and maintenance costs of the electrolytic cell. Of course, the plate 100 and electrode frame 200 can also be configured, like the flow guide 300, with an overall material selection of pure nickel, nickel alloy, pure titanium, titanium alloy, modified polytetrafluoroethylene, polysulfone, polyphenylene sulfide, and composite materials, and the materials of the plate 100 and electrode frame 200 can be the same as or different from those of the flow guide 300.
[0056] Furthermore, the composite material in this embodiment can be a metal composite material or a non-metallic material. The metal composite material can be a titanium-based composite material or a nickel-based composite material, and the non-metallic composite material can be a certain ceramic-based composite material, such as an alumina-based composite material, or a carbon / carbon composite material or a fluorine-containing composite material.
[0057] In one embodiment, the electrode frame 200 has a connection port 210, and the flow guide 300 is disposed at the connection port 210. It is understood that the connection port 210 extends to the outer periphery of the plate 100, and the flow guide 300 is mounted or formed at the connection port 210. Both the electrode frame 200 and the plate 100 have sufficient area to connect with the flow guide 300, thereby ensuring the structural stability of the electrode plate 100.
[0058] In one embodiment, please refer to Figures 1 to 5 The flow guide 300 includes a plurality of first flow guides 310. The fluid channels 301 on the first flow guides 310 are configured as electrolysis product outlet channels. The plate 100 is also connected to at least one first partition 221. Each of the first partitions 221 has a connection port 210 on each side distributed circumferentially along the electrode frame 200. A first flow guide 310 is disposed at a connection port 210. That is, the gaseous electrolysis products produced by the reaction will be discharged from the electrolytic cell through the fluid channels 301 on the first flow guides 310. The fluid channels 301 and the flow guide 302 on the first flow guides 310 are easily affected by the reverse current during shutdown and are the areas on the electrode plate that are most severely corroded.
[0059] It is understandable that the first flow guide 310 has stronger corrosion resistance than the plate 100 and the pole frame 200. Whether by selecting a material with stronger corrosion resistance or by performing a more corrosion-resistant processing, its unit area cost will be higher. In this embodiment, a connection port 210 is provided for each first flow guide 310. The first partition 221 of the connection port 210 can be integrally formed with the plate 100 and the pole frame 200. This minimizes the area of a single first flow guide 310, which helps reduce the production cost of the first flow guide 310. Of course, in other embodiments, multiple first flow guides 310 can also be integrally formed, with a connection port 210 formed at the pole frame 200 corresponding to multiple first flow guides 310, to improve the convenience of connecting and processing the first flow guide 310 with the plate 100 and the pole frame 200.
[0060] Without loss of generality, two first flow guides 310 are provided, each corresponding to the anode and cathode of the electrode plate, respectively. It can be understood that the opposite surfaces of the plate 100 are the anode and cathode surfaces, respectively. The flow guide grooves 302 of the two first flow guides 310 are respectively provided to the anode and cathode surfaces of the plate 100. The anode products of the electrolysis reaction are generated on the anode surface, and the cathode products are generated on the cathode surface. Both enter a separate fluid channel 301 through the corresponding flow guide grooves 302 to ensure the collection of electrolysis reaction products. Of course, in other embodiments, two or more first flow guides 310 may be provided corresponding to the anode and cathode of the electrode plate, respectively.
[0061] In one embodiment, please refer to Figures 1 to 3The flow guide 300 includes a plurality of second flow guides 320. The fluid channel 301 on the second flow guide 320 is configured as an electrolyte inlet channel. The plate body 100 is also connected to at least one second partition 222. Each of the second partitions 222 has a connection port 210 formed on both sides distributed circumferentially along the pole frame 200. Each second flow guide 320 is disposed at one connection port 210. That is, the electrolyte will flow sequentially to the plate surface of the plate body 100 through the fluid channel 301 and the flow channel 302 on the second flow guide 320. In this embodiment, a connection port 210 is provided for each second flow guide 320. The second partition 222 that forms the connection port 210 can be integrally formed with the plate body 100 and the pole frame 200. In this way, the area of a single second flow guide 320 can be minimized, which is beneficial to reducing the production cost of the second flow guide 320.
[0062] Furthermore, the fluid channels 301 of the plurality of second flow guides 320 are interconnected, and at least one second flow guide 320 forms a flow guide groove 302 on each of its opposite sides corresponding to the anode and cathode surfaces of the plate 100. This allows liquid to enter both sides of the electrode plate through a single inlet, and increases the liquid entry path, which is beneficial for improving the liquid entry efficiency of the electrode plate. Without loss of generality, two second flow guides 320 are configured, and each second flow guide 320 forms a flow guide groove 302 on each of its opposite sides corresponding to the anode and cathode surfaces of the plate 100, increasing the liquid entry path. Furthermore, the liquid entry paths on each side of the electrode plate are somewhat dispersed circumferentially, which helps to ensure the liquid entry efficiency on both sides of the electrode plate.
[0063] In one embodiment, please refer to Figure 4 and Figure 5The fluid channel 301 on the guide member 300 is configured as an electrolysis product outlet channel. The electrode frame 200 forms an electrolyte inlet channel 231 extending axially along the electrode plate and an electrolyte guide groove 232 extending parallel to the plate body 100 on the opposite side of the guide member 300. The electrolyte guide groove 232 is connected to the plate body 100 and communicates with the electrolyte inlet channel 231. For the electrode plate, the area where the electrolysis products are outlet (i.e., the location of the fluid channel 301 and guide groove 302 on the guide member 300) suffers the most severe corrosion. In contrast, the area where the electrolyte is inlet (i.e., the location of the electrolyte inlet channel 231 and electrolyte guide groove 232) suffers relatively less corrosion. In this embodiment, the electrode frame 200 forms the electrolyte inlet channel 231 and the corresponding electrolyte guide groove 232. Only the area where the electrolytic products are discharged is separated as a flow guide 300 and designed separately. This allows the corrosion resistance of different areas of the electrode plate to be relatively balanced with the intensity of corrosion it experiences, which is beneficial for extending the service life of the electrode plate. Furthermore, since only the area where the electrolytic products are discharged is separated, it helps to further reduce the production cost of the electrode plate and save on the operation and maintenance costs of the electrolytic cell. The relevant settings of the flow guide 300 in this embodiment can be referred to the first flow guide in the aforementioned embodiment, and will not be repeated here.
[0064] In one embodiment, please refer to the following: Figure 6 and Figure 7 The flow guide 300 is annular, with its inner circumference connected to the plate 100 and its outer circumference connected to the electrode frame 200. That is, the flow guide 300 is annularly disposed outside the plate 100, and the electrode frame 200 is annularly disposed outside the flow guide 300. This ensures a sufficiently large connection area between the flow guide 300 and the plate 100, as well as between the flow guide 300 and the electrode frame 200, thereby guaranteeing the structural stability of the electrode plate and improving the circumferential structural consistency of the electrode plate, which is beneficial for ensuring the structural stability of the electrolytic cell formed by stacking. In this embodiment, the arrangement of the fluid channel 301 and the flow guide groove 302 can refer to the above embodiment, and will not be repeated here.
[0065] This utility model also proposes an electrolytic cell, which includes an electrode plate. The specific structure of the electrode plate 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.
[0066] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A plate, characterized in that The application relates to a plate body (100) and a polar frame (200) surrounding the plate body (100), and a flow guide member (300) connected to the plate body (100) and the polar frame (200), wherein the flow guide member (300) is provided with a fluid channel (301) penetrating along the axial direction of the polar plate and a flow guide groove (302) extending in parallel with the plate body (100), the flow guide groove (302) is connected to the plate body (100) and communicates with the fluid channel (301). The polar frame (200) is provided with a connecting port (210), and the flow guide member (300) is arranged in the connecting port (210). The flow guide member (300) comprises a plurality of first flow guide members (310), the fluid channel (301) on the first flow guide member (310) is configured as an electrolysis product leading-out channel, the plate body (100) is further provided with at least one first partition (221), the first partition (221) is provided with the connecting port (210) on each of two sides distributed along the circumferential direction of the polar frame (200), and one first flow guide member (310) is arranged in one connecting port (210). The first flow guide member (310) is arranged in two, and the two first flow guide members (310) are respectively arranged corresponding to the anode and the cathode of the polar plate.
2. The pole as claimed in claim 1, wherein The flow guide member (300) comprises a plurality of second flow guide members (320), the fluid channel (301) on the second flow guide member (320) is configured as an electrolyte leading-in channel, the plate body (100) is further provided with at least one second partition (222), the second partition (222) is provided with the connecting port (210) on each of two sides distributed along the circumferential direction of the polar frame (200), and one second flow guide member (320) is arranged in one connecting port (210).
3. The pole as claimed in claim 2, wherein The fluid channels (301) of the plurality of second flow guide members (320) are communicated, and the two sides of at least one second flow guide member (320) correspond to the anode surface and the cathode surface of the plate body (100) and are respectively provided with the flow guide groove (302).
4. The pole as claimed in claim 3, wherein The connecting port (210) penetrates the outer circumferential edge of the polar frame (200).
5. The pole as claimed in claim 2, wherein The fluid channel (301) on the flow guide member (300) is configured as an electrolysis product leading-out channel, the polar frame (200) is provided with an electrolyte leading-in channel (231) penetrating along the axial direction of the polar plate and an electrolyte guide groove (232) extending in parallel with the plate body (100) on the opposite side of the flow guide member (300), the electrolyte guide groove (232) is connected to the plate body (100) and communicates with the electrolyte leading-in channel (231).
6. The pole as claimed in claim 5, wherein The flow guide member (300) is annular, the inner circumferential side is connected to the plate body (100), and the outer circumferential side is connected to the polar frame (200).
7. The pole as claimed in claim 2, wherein At least the flow guide member (300) is integrally configured as a material resistant to alkali corrosion.
8. The pole as claimed in claim 1, wherein 9. The pole as claimed in claim 1, wherein 10. The pole as claimed in claim 1, wherein 11. The pole as claimed in claim 10, wherein The material of the plate body (100) and the pole frame (200) is configured as one of carbon steel substrate with protective layer, pure nickel, nickel alloy, pure titanium, titanium alloy, modified polytetrafluoroethylene, polysulfone, polyphenylene sulfide, titanium-based composite material, nickel-based composite material, alumina-based composite material, and carbon / carbon composite material. The material of the flow guide (300) is configured as one of pure nickel, nickel alloy, pure titanium, titanium alloy, modified polytetrafluoroethylene, polysulfone, polyphenylene sulfide, titanium-based composite material, nickel-based composite material, alumina-based composite material, and carbon / carbon composite material.
12. The pole as claimed in claim 1, wherein When the material of the plate body (100) and the pole frame (200) is metal, and the material of the flow guide (300) is non-metal, or when the materials of the plate body (100), the pole frame (200), and the flow guide (300) are the same, the flow guide (300) is integrally formed with the plate body (100) and the pole frame (200). Alternatively, the flow guide (300) is separately formed and then connected to the plate body (100) and the pole frame (200).
13. The pole as claimed in claim 12, wherein When the material of the plate body (100) and the pole frame (200) is metal, and the material of the flow guide (300) is non-metal, the flow guide (300) is integrally formed with the plate body (100) and the pole frame (200) by sintering or insert injection molding. Alternatively, the flow guide (300) is separately formed and then connected to the plate body (100) and the pole frame (200) by welding, bonding, or riveting.
14. An electrolytic cell characterized in that, The pole plate includes any one of claims 1-13.