Electrode plate, electrolytic bath, electrolytic hydrogen production system and hydrogen production station

Abstract

The utility model discloses an electrode plate, an electrolytic bath, an electrolytic hydrogen production system and a hydrogen production station, and belongs to the technical field of water electrolysis hydrogen production. The electrode plate of the electrolytic cell comprises an electrode plate, an electrode frame and at least one separator. The pole frame surrounds the outer ring of the pole plate, and defines an electrolysis area with the pole plate; the two ends of the separator are connected with the electrode frame, so that the electrolysis area is divided into at least two electrolysis sub-areas; wherein the electrode frame is provided with a plurality of groups of liquid inlet and outlet channels, and each electrolytic sub-region is communicated with the corresponding liquid inlet and outlet channel. Through the combination of the polar plates, the polar frames, the separators and the multiple groups of liquid inlet and outlet channels, the electrode plates can be divided into at least two areas, so that the circulating flow of electrolyte is realized, the uniform distribution of the electrolyte in the electrolysis process is ensured, the overtemperature problem of the electrolytic bath is improved, the retention time of bubbles in the electrolytic bath is shortened, the bubbles can be timely eliminated, and the service life of the electrolytic bath is prolonged. And the electrolytic reaction solution resistance caused by bubbles is reduced to the maximum extent, so that the electrolytic efficiency is improved.

Description

Technical Field

[0001] This application belongs to the technical field of hydrogen production by electrolyzing water, and particularly relates to an electrode plate, an electrolytic cell, an electrolytic hydrogen production system, and a hydrogen production station. Background Art

[0002] The electrolytic cell is the core equipment in the process of hydrogen production by electrolyzing water, and its performance directly determines the overall efficiency of the hydrogen production system. The structure of the alkaline electrolytic cell is relatively simple and the manufacturing cost is relatively low, but the hydrogen production capacity needs to be improved. The improvement of the hydrogen production capacity of the alkaline electrolytic cell can be achieved by increasing the volume of the electrolytic cell. In related technologies, with the development of the large-scale electrolytic cell, the electrolytic cell electrode plates are getting larger and larger. There are many problems in the pressure-type alkaline water electrolysis cell technology. For example, the conventional electrolytic cell gas outlets are distributed on both sides of the highest point of the reaction area. As the size of the electrode plate increases and the gas production increases, the travel distance of the bubbles moving on the electrode plate will increase, and the generated gas cannot be discharged in a timely and effective manner. There is gas resistance in the area occupied by the gas, which will reduce the reaction efficiency of the entire electrolytic cell and there is room for improvement. Summary of the Utility Model

[0003] This application aims to at least solve the technical problems of overheating of the electrolytic cell and inconsistent reaction rates and gas-liquid distributions in different regions during the electrolysis reaction in related technologies. For this purpose, this application provides an electrode plate, an electrolytic cell, an electrolytic hydrogen production system, and a hydrogen production station, which can improve the overheating problem of the electrolytic cell, make the reaction rates and gas-liquid distributions in different regions of the electrolytic cell tend to be consistent during the electrolysis reaction, and maximize the reduction of the electrolysis reaction solution resistance caused by bubbles, thereby improving the electrolysis efficiency.

[0004] In a first aspect, this application provides an electrode plate for an electrolytic cell, including: an electrode plate, an electrode frame, and at least one partition.

[0005] The electrode frame surrounds the outer circle of the electrode plate and defines an electrolysis area with the electrode plate;

[0006] Both ends of the partition are connected to the electrode frame to divide the electrolysis area into at least two electrolysis sub-areas;

[0007] Wherein, the electrode frame is provided with multiple groups of liquid inlet and outlet channels, and each electrolysis sub-area is communicated with the corresponding liquid inlet and outlet channels.

[0008] The combination of the electrode plate, the electrode frame, the separator, and multiple groups of liquid inlet and outlet channels divides the electrode plate into at least two regions, enabling the circulating flow of the electrolyte, ensuring the uniform distribution of the electrolyte during the electrolysis process, improving the overheating problem of the electrolytic cell. At the same time, by setting multiple groups of liquid inlet and outlet channels, the residence time of bubbles inside the electrolytic cell can be reduced, thereby reducing the travel distance of bubbles within the electrolytic sub-regions, facilitating the timely removal of bubbles, reducing the inactive regions with high gas content, making the reaction rates and gas-liquid distributions in different regions of the electrolytic cell tend to be consistent during the electrolysis reaction, and maximizing the reduction of the electrolysis reaction solution resistance caused by bubbles, thus improving the electrolysis efficiency.

[0009] According to an embodiment of the present application, the separator is provided with at least one flow channel, and the electrolytic sub-region is communicated with the liquid inlet channel or the liquid outlet channel through the flow channel.

[0010] The flow channel on the separator is an important component in the electrolysis system, ensuring the effective connection between the electrolytic sub-region and the liquid inlet channel or the liquid outlet channel, as well as the uniform flow of the electrolyte within the electrolytic sub-region, thereby avoiding situations of excessively high or low local concentrations, ensuring the smooth progress of the electrolysis process, improving the electrolysis efficiency, and reducing the energy loss during the electrolysis process.

[0011] According to an embodiment of the present application, the separator is provided with a first flow channel and a second flow channel spaced apart in the width direction. The first flow channel and the second flow channel are respectively communicated with the adjacent electrolytic sub-regions, and one of them is communicated with the liquid inlet channel, and the other is communicated with the liquid outlet channel.

[0012] The separator is provided with the first flow channel and the second flow channel spaced apart in the width direction, and is communicated with the adjacent electrolytic sub-regions, the liquid inlet channel, and the liquid outlet channel, providing an effective electrolyte flow path for the electrolysis system and ensuring the smooth progress of the electrolysis process.

[0013] According to an embodiment of the present application, the flow channel extends from one end of the separator to the other end, and is communicated with the corresponding electrolytic sub-region through a plurality of spaced-apart notches.

[0014] The flow channel extends from one end of the separator to the other end, and is communicated with the corresponding electrolytic sub-region through a plurality of spaced-apart notches. The uniformly flowing electrolyte can reduce the pressure fluctuation and resistance loss inside the system, improve the stability and reliability of the system, provide an effective electrolyte flow path and a uniform distribution method for the electrolysis system, and ensure the smooth progress of the electrolysis process and the stable operation of the system.

[0015] According to an embodiment of the present application, the first end of the flow channel extends to the pole frame, and one of the liquid inlet channel and the liquid outlet channel communicates with the first end of the corresponding flow channel.

[0016] The first end of the flow channel extends to the pole frame and communicates with one of the liquid inlet channel and the liquid outlet channel, providing an effective electrolyte flow path and a uniform distribution mode for the electrolysis system, ensuring the smooth progress of the electrolysis process and the stable operation of the system.

[0017] According to an embodiment of the present application, the electrolysis region includes a first electrolysis sub-region and a second electrolysis sub-region. The lower part of the pole frame and the lower side of the partition member define the boundary of the first electrolysis sub-region, and the upper part of the pole frame and the upper side of the partition member define the boundary of the second electrolysis sub-region.

[0018] Through the cooperation of the pole frame and the partition member, the electrolysis region can form independent first and second electrolysis sub-regions, providing a stable environment and conditions for the electrolysis reaction, helping to improve the electrolysis efficiency, reduce the energy consumption, and facilitating the management and control of different electrolysis processes.

[0019] According to an embodiment of the present application, the partition member is formed with a first flow channel and a second flow channel;

[0020] The lower part of the pole frame is provided with a first liquid inlet channel, and the region of the lower part of the pole frame close to the partition member is provided with a first liquid outlet channel. The first flow channel is close to the first electrolysis sub-region and is provided with a plurality of first notches communicating with the first electrolysis sub-region, and the end of the first flow channel communicates with the first liquid outlet channel;

[0021] The upper part of the pole frame is provided with a second liquid outlet channel, and the region of the upper part of the pole frame close to the partition member is provided with a second liquid inlet channel. The second flow channel is close to the second electrolysis sub-region and is provided with a plurality of second notches communicating with the second electrolysis sub-region, and the end of the second flow channel communicates with the second liquid inlet channel.

[0022] Through the joint cooperation of the partition member, the pole frame, the electrolysis sub-regions and the flow channels, it can ensure the effective flow of the electrolyte between the two electrolysis sub-regions, guarantee the uniform distribution and effective flow of the electrolyte between the two electrolysis sub-regions, thereby improving the electrolysis efficiency and product quality. At the same time, through the flow channels and notches on the partition member, the flow rate and velocity of the electrolyte can be precisely controlled, further optimizing the electrolysis process.

[0023] According to an embodiment of the present application, the partition member includes N spaced apart, dividing the electrolysis region into N + 1 electrolysis sub-regions, where N is a positive integer.

[0024] The N separators distributed at intervals divide the electrolysis region into N + 1 electrolysis sub-regions, and N is a positive integer, which can realize the circulating flow of the electrolyte, ensure the uniform distribution of the electrolyte during the electrolysis process, improve the over-temperature problem of the electrolytic cell, and improve the electrolysis efficiency.

[0025] According to an embodiment of the present application, there are multiple separators, and at least two of the separators are arranged crosswise.

[0026] Through the cooperation of the pole frame and the multiple separators, the electrolysis region can form multiple independent electrolysis sub-regions, providing a stable environment and conditions for the electrolysis reaction, which helps to improve the electrolysis efficiency, reduce the energy consumption, and facilitate the management and control of different electrolysis processes.

[0027] In a second aspect, the present application provides an electrolytic cell, and the electrolytic cell includes multiple electrode plates.

[0028] According to an embodiment of the present application, the multiple electrode plates are stacked.

[0029] Through the stacked arrangement of the multiple electrode plates in the electrolytic cell, the surface area of the electrode plates can be increased, thereby increasing the contact area of the electrolyte, improving the electrolysis efficiency, and realizing the efficient and stable operation of the electrolytic cell.

[0030] In a third aspect, the present application provides an electrolytic hydrogen production system, and the electrolytic hydrogen production system includes: the electrolytic cell.

[0031] The electrolytic hydrogen production system may include: a hydrogen production device, a purification device, and a drying device. The hydrogen production device includes the electrolytic cell. Through the effective cooperation of the hydrogen production device, the purification device, and the drying device, impurities in hydrogen can be effectively removed, its purity and quality can be improved, and a strong guarantee is provided for the stable operation of the electrolytic hydrogen production system.

[0032] In a fourth aspect, the present application provides a hydrogen production station, and the hydrogen production station includes: the electrolytic hydrogen production system and a green power generation system.

[0033] The green power generation system can provide clean and renewable electricity for the electrolytic hydrogen production system, which helps to promote the green development of the hydrogen energy industry, is beneficial to environmental protection and sustainable development.

[0034] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. Description of the Drawings

[0035] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0036] Figure 1 is one of the schematic structural diagrams of the electrode plate of the electrolytic cell provided by an embodiment of the present application;

[0037] Figure 2 is Figure 1 the partial enlarged view at A in

[0038] Figure 3 is the schematic diagram of the flow channel of the electrode plate of the electrolytic cell provided by an embodiment of the present application;

[0039] Figure 4 is the second schematic structural diagram of the electrode plate of the electrolytic cell provided by an embodiment of the present application;

[0040] Figure 5 is the third schematic structural diagram of the electrode plate of the electrolytic cell provided by an embodiment of the present application;

[0041] Figure 6 is the fourth schematic structural diagram of the electrode plate of the electrolytic cell provided by an embodiment of the present application.

[0042] Reference numerals:

[0043] electrode plate 10;

[0044] main board body 110;

[0045] pole frame 120;

[0046] separator 130, first notch 131, second notch 132;

[0047] electrolysis region 20, first sub-electrolysis region 210, second sub-electrolysis region 220, third sub-electrolysis region 230, fourth sub-electrolysis region 240;

[0048] first flow channel 30, second flow channel 40, first liquid inlet channel 50, first liquid outlet channel 60, second liquid inlet channel 70, second liquid outlet channel 80. Detailed Description of the Embodiment

[0049] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0050] This application aims to solve at least the technical problems of overheating of the electrolytic cell and inconsistent reaction rates and gas-liquid distributions in different regions during the electrolytic reaction in the related art. To this end, this application proposes an electrode plate, an electrolytic cell, an electrolytic hydrogen production system, and a hydrogen production station, which can improve the overheating problem of the electrolytic cell, make the reaction rates and gas-liquid distributions in different regions of the electrolytic cell tend to be consistent during the electrolytic reaction, and maximize the reduction of the electrolytic reaction solution resistance caused by bubbles, thereby improving the electrolysis efficiency.

[0051] Reference is made below Figures 1-6 to describe the electrode plate 10 of the electrolytic cell according to an embodiment of the present application.

[0052] As Figures 1-6 shown, the electrode plate 10 includes: a main board body 110, an electrode frame 120, and at least one partition 130.

[0053] The electrode frame 120 surrounds the outer circle of the main board body 110 and defines an electrolysis area 20 together with the main board body 110;

[0054] Both ends of the partition 130 are connected to the electrode frame 120 to divide the electrolysis area 20 into at least two electrolysis sub-areas;

[0055] Among them, the electrode frame 120 is provided with multiple groups of electrolyte inlet and outlet channels, and each electrolysis sub-area is communicated with the corresponding inlet and outlet channels.

[0056] In the technical solution of the present application, the main board body 110 is the core part of the electrode plate 10. During the electrolysis process, the main board body 110 is the main place for the electrochemical reaction, and electron transfer will occur on the surface, thereby promoting the redox reaction of the ions in the electrolyte. The shape, size, and material selection of the main board body 110 will all affect the efficiency and effect of the electrolysis process. For example, the shape of the main board body 110 can be square or circular. Among them, the square can timely discharge bubbles without increasing the design height without limit, but the system pressure of the conventional square is relatively low, while the system pressure of the circular can be higher. The main board body 110 is usually made of a conductive material to ensure that the current can effectively pass through and promote the progress of the electrochemical reaction. For example, it can be a metal plate or a substrate coated with a conductive coating.

[0057] The electrode frame 120 surrounds the outer circle of the main board body 110. Its main function is to fix and protect the main board body 110, and jointly define the electrolysis area 20 with the main board body 110 to facilitate the circulation of the electrolyte in the electrolysis area 20. The electrode frame 120 is in direct contact with the electrolyte and needs to withstand chemical corrosion during the electrolysis process. The material should have good corrosion resistance and can be metal or plastic. The electrode frame 120 can ensure the tightness of the electrolysis area 20 and prevent electrolyte leakage.

[0058] The separator 130 is located within the electrolysis region 20 and is connected to the electrode frame 120 at both ends. It is used to divide the electrolysis region 20 into at least two electrolysis sub-regions, and the electrolysis region 20 can be unevenly distributed. The function of the separator 130 is to prevent the mixing of electrolytes in different electrolysis sub-regions, thereby maintaining the stability of the electrolyte composition in each electrolysis sub-region. The material of the separator 130 also needs to have good corrosion resistance and ensure effective separation between adjacent electrolysis sub-regions to avoid electrolyte penetration.

[0059] Multiple sets of liquid inlet and outlet channels are provided on the electrode frame 120 to achieve the circulating flow of the electrolyte solution, ensure the uniform distribution of the electrolyte during the electrolysis process, improve the electrolysis efficiency, and each electrolysis sub-region is connected to the corresponding liquid inlet and outlet channels. Different components or concentrations of electrolytes can be provided to each electrolysis sub-region as needed to achieve a multi-functional electrolysis process.

[0060] According to the electrode plate 10 provided by the embodiment of the present application, the combination of the main board body 110, the electrode frame 120, the separator 130, and multiple sets of liquid inlet and outlet channels divides the main board body 110 into at least two regions, which can achieve the circulating flow of the electrolyte solution, ensure the uniform distribution of the electrolyte during the electrolysis process, improve the over-temperature problem of the electrolytic cell. At the same time, by setting multiple sets of liquid inlet and outlet channels, the residence time of bubbles inside the electrolytic cell can be reduced, thereby reducing the travel distance of bubbles in the electrolysis sub-region, which is beneficial to the timely discharge of bubbles, reducing the inactive regions with high gas content, making the reaction rates and gas-liquid distributions of the upper and lower electrolysis sub-regions of the electrolytic cell tend to be consistent during the electrolysis reaction, and maximizing the reduction of the electrolysis reaction solution resistance caused by bubbles, thereby improving the electrolysis efficiency.

[0061] In some embodiments, as Figures 1-6 shown, the separator 130 is provided with at least one flow channel, and the electrolysis sub-region is connected to the liquid inlet channel or the liquid outlet channel through the flow channel.

[0062] In the technical solution of the present application, the separator 130 separates different electrolysis sub-regions to ensure that each sub-chamber can work independently without interference. At the same time, the separator 130 is provided with at least one flow channel to allow the electrolyte to flow between the electrolysis sub-region and the inlet flow channel or the outlet flow channel. The flow channels can be single or multiple, and the specific number depends on the design and requirements of the electrolysis system. The flow channels can ensure the smooth flow of the electrolyte and avoid blockage or poor flow. If there are multiple flow channels, they are separated by partitions, and the partitions are used to separate the flow channels connecting adjacent electrolysis sub-regions to avoid the mixing of electrolytes in different electrolysis sub-regions.

[0063] Through the flow channels on the separator 130, the electrolysis sub-regions can communicate with the liquid inlet channel or the liquid outlet channel. When the electrolyte enters from the liquid inlet channel, it can flow into each electrolysis sub-region through the flow channels. When the electrolyte in the electrolysis sub-region needs to be discharged, it can also flow into the liquid outlet channel through the flow channels.

[0064] It can be understood that the flow channels on the separator 130 are an important part of the electrolysis system, ensuring the effective communication between the electrolysis sub-regions and the liquid inlet channel or the liquid outlet channel, as well as the uniform flow of the electrolyte in the electrolysis sub-regions, thus avoiding the situation of too high or too low local concentration, ensuring the smooth progress of the electrolysis process, improving the electrolysis efficiency, and reducing the energy loss during the electrolysis process.

[0065] In some embodiments, such as Figures 1-6 As shown, the separator 130 is provided with a first flow channel 30 and a second flow channel 40 spaced apart in the width direction. The first flow channel 30 and the second flow channel 40 are respectively communicated with their adjacent electrolysis sub-regions, and one of them is communicated with the liquid inlet channel, and the other is communicated with the liquid outlet channel.

[0066] In the technical solution of the present application, the first flow channel 30 and the second flow channel 40 are spaced apart in the width direction of the separator 130 and are arranged horizontally on the separator 130, allowing the electrolyte to flow on both sides or in the middle of the separator 130. Each flow channel is directly communicated with one or more electrolysis sub-regions, and the electrolyte can directly flow into or out of the electrolysis sub-region through the flow channels, so as to ensure that the electrolyte in the electrolysis sub-region is replenished or discharged in time.

[0067] One of the first flow channel 30 and the second flow channel 40 is communicated with the liquid inlet channel for transporting fresh electrolyte into the electrolysis sub-region, and the other flow channel is communicated with the liquid outlet channel for discharging the electrolyzed electrolyte or the generated gas from the system, ensuring the cyclic flow of the electrolyte, enabling the electrolysis process to continue. The flow channels are spaced apart in the width direction and are directly communicated with the electrolysis sub-regions, which can ensure the uniform flow of the electrolyte in the electrolysis sub-regions, help reduce the concentration gradient, improve the electrolysis efficiency, and reduce possible side reactions. At the same time, by adjusting the positions of the liquid inlet channel and the liquid outlet channel, the flow path of the electrolyte can be further optimized to improve the overall performance of the system.

[0068] It can be understood that the separator 130 is provided with a first flow channel 30 and a second flow channel 40 spaced apart in the width direction, and is communicated with their adjacent electrolysis sub-regions as well as the liquid inlet channel and the liquid outlet channel, providing an effective electrolyte flow path for the electrolysis system and ensuring the smooth progress of the electrolysis process.

[0069] In some embodiments, such as Figures 1-6As shown, the flow channel extends from one end of the separator 130 to the other end, and is communicated with the corresponding electrolysis sub-region through a plurality of spaced-apart notches.

[0070] In the technical solution of the present application, the flow channel extends from one end of the separator 130 to the other end, which can enable the electrolyte to flow in the length direction of the entire separator 130, contributing to ensuring the uniform distribution of the electrolyte in the system, avoiding the reduction in efficiency or the increase in side reactions caused by too high or too low local concentration. The flow channel is communicated with the electrolysis sub-region through a plurality of spaced-apart notches. The electrolyte can freely flow between the flow channel and the electrolysis sub-region through the notches, ensuring that the electrolyte in the electrolysis sub-region is replenished or discharged in a timely manner. The spacing of the notches can be determined according to specific electrolysis requirements and process conditions. A reasonable notch spacing can ensure that the flow of the electrolyte in the electrolysis sub-region is uniform, reduce the concentration gradient, improve the electrolysis efficiency, and at the same time make the stress change of the main board body 110 more uniform, improving the pressure resistance and sealing effect of the sealing gasket.

[0071] The flow channel passes through the entire separator 130 in the length direction and is communicated with the electrolysis sub-region through a plurality of notches. The electrolyte can be evenly distributed and flow between the flow channel and the electrolysis sub-region, contributing to reducing the concentration gradient, improving the electrolysis efficiency, and reducing possible side reactions. At the same time, the electrolysis system has greater flexibility, and the number, position of the flow channel and the size of the notches can be adjusted according to specific electrolysis requirements and process conditions to optimize the flow path of the electrolyte and improve the overall performance of the system.

[0072] It can be understood that the flow channel extends from one end of the separator 130 to the other end and is communicated with the corresponding electrolysis sub-region through a plurality of spaced-apart notches. The evenly flowing electrolyte can reduce the pressure fluctuation and resistance loss inside the system, improve the stability and reliability of the system, provide an effective electrolyte flow path and a uniform distribution method for the electrolysis system, and ensure the smooth progress of the electrolysis process and the stable operation of the system.

[0073] In some embodiments, as Figures 1-6 shown, the first end of the flow channel extends to the end frame 120, and one of the liquid inlet channel and the liquid outlet channel is communicated with the first end of the corresponding flow channel.

[0074] In the technical solution of the present application, the first end of the flow channel extends to the end frame 120, that is, the starting part of the flow channel is directly connected to the end frame 120. The end frame 120 is a key component in the electrolytic cell, used to support the electrodes and separate different electrolysis sub-regions. The extension of the flow channel to the end frame 120 can ensure that the electrolyte directly flows into the electrolysis sub-region.

[0075] One of the liquid inlet channel and the liquid outlet channel is in communication with the first end of the corresponding flow channel. During the electrolysis process, the electrolyte flows into the electrolysis sub-region through the liquid inlet channel to carry out a chemical reaction with the electrode. After the electrolysis reaction ends, the electrolyte containing the product is discharged from the electrolysis sub-region through the liquid outlet channel. When both the liquid inlet channel and the liquid outlet channel exist, they will not be simultaneously in communication with the first end of the same flow channel, but are respectively connected to different flow channels to achieve the cyclic flow and renewal of the electrolyte.

[0076] By controlling the flow rate and velocity of the liquid inlet channel and the liquid outlet channel, the conditions of the electrolysis reaction can be optimized, the electrolysis efficiency can be improved, and possible side reactions can be reduced. At the same time, it also helps to ensure the uniform distribution and effective flow of the electrolyte in the electrolysis system, reduce the pressure fluctuation and resistance loss inside the system, and improve the stability and reliability of the system.

[0077] It can be understood that the first end of the flow channel extends to the electrode frame 120 and is in communication with one of the liquid inlet channel or the liquid outlet channel, providing an effective electrolyte flow path and a uniform distribution method for the electrolysis system, ensuring the smooth progress of the electrolysis process and the stable operation of the system.

[0078] Here, take the example of dividing the main board body 110 into upper and lower regions.

[0079] In some embodiments, as Figure 1 shown, the electrolysis region 20 may include a first electrolysis sub-region 210 and a second electrolysis sub-region 220. The lower part of the electrode frame 120 and the lower side of the separator 130 define the boundary of the first electrolysis sub-region 210, and the upper part of the electrode frame 120 and the upper side of the separator 130 define the boundary of the second electrolysis sub-region 220.

[0080] In the technical solution of the present application, the electrolysis region 20 is used to implement a specific electrolysis reaction and ensure the high efficiency and stability of the reaction. The electrolysis region 20 is an independent unit in the electrolytic cell, used to accommodate the electrolyte and the electrode and carry out the electrolysis reaction. By designing multiple electrolysis sub-regions, the electrolysis conditions can be optimized, the electrolysis efficiency can be improved, and it is convenient to manage and control different electrolysis processes.

[0081] The first electrolytic sub-region 210 has a distinct boundary. The lower side of the separator 130 cooperates with the electrode frame 120 to form a closed boundary of the first electrolytic sub-region 210, separating it from adjacent electrolytic sub-regions or other parts of the electrolytic cell. The side boundary and the lower boundary are defined by the lower part of the electrode frame 120, and the upper boundary is defined by the lower side of the separator 130. The second electrolytic sub-region 220 has a distinct boundary. The upper side of the separator 130 cooperates with the electrode frame 120 to form a closed boundary of the second electrolytic sub-region 220, separating it from adjacent electrolytic sub-regions or other parts of the electrolytic cell. The side boundary and the upper boundary are defined by the upper part of the electrode frame 120, and the lower boundary is defined by the upper side of the separator 130.

[0082] The separator 130 is an important component in the electrolytic region 20, responsible for separating different electrolytic sub-regions, preventing the mixing of electrolytes, and ensuring that the electrolytic reactions in each sub-chamber can proceed independently. The separator 130 is usually made of materials with good corrosion resistance and insulation, such as metals or plastics, to withstand chemical corrosion and electrical insulation requirements during the electrolysis process. The electrode frame 120 is a key component that supports the electrodes and defines the boundaries of the electrolytic sub-regions. It is usually made of materials with good electrical conductivity so that current can be transmitted to the electrodes.

[0083] The electrolytic region 20 is also provided with inlet and outlet channels to introduce fresh electrolyte into the electrolytic sub-regions and discharge the reacted electrolyte and gas. The inlet and outlet channels are usually connected to the flow channels on the separator 130 to ensure the uniform distribution and effective flow of the electrolyte.

[0084] It can be understood that through the cooperation of the electrode frame 120 and the separator 130, the electrolytic region 20 can form independent first and second electrolytic sub-regions 210 and 220, providing a stable environment and conditions for the electrolytic reaction, helping to improve the electrolysis efficiency, reduce energy consumption, and facilitate the management and control of different electrolysis processes.

[0085] In some embodiments, as Figure 1 and Figure 2 shown, the separator 130 is formed with a first flow channel 30 and a second flow channel 40;

[0086] The lower part of the electrode frame 120 is provided with a first liquid inlet channel 50, and a first liquid outlet channel 60 is provided in the area of the lower part of the electrode frame 120 close to the separator 130. The first flow channel 30 is close to the first electrolytic sub-region 210 and is provided with a plurality of first notches 131 communicating with the first electrolytic sub-region 210. The end of the first flow channel 30 is communicated with the first liquid outlet channel 60;

[0087] The upper part of the electrode frame 120 is provided with a second liquid outlet channel 80. The upper part of the electrode frame 120 in the area close to the separator 130 is provided with a second liquid inlet channel 70. The area of the separator 130 close to the second electrolysis sub-region 220 is provided with a second flow channel 40, and is provided with a plurality of second notches 132 communicating with the second electrolysis sub-region 220. The end of the second flow channel 40 communicates with the second liquid inlet channel 70.

[0088] In the technical solution of the present application, the electrolysis region 20 is separated by the separator 130 into a first electrolysis sub-region 210 and a second electrolysis sub-region 220. The separator 130 and the electrode frame 120 jointly define the boundary. The joint cooperation of the separator 130 and the electrode frame 120 can ensure the effective flow of the electrolyte between the two electrolysis sub-regions.

[0089] The separator 130 forms two main flow channels: a first flow channel 30 and a second flow channel 40, which are respectively responsible for distributing and circulating the electrolyte in the first electrolysis sub-region 210 and the second electrolysis sub-region 220. The first flow channel 30 is close to the first electrolysis sub-region 210 and is provided with a plurality of first notches 131 communicating with the first electrolysis sub-region 210, allowing the electrolyte to flow from the flow channel into the first electrolysis sub-region 210, and at the same time allowing the electrolyte flowing out of the first electrolysis sub-region 210 to flow back into the flow channel. The second flow channel 40 is close to the second electrolysis sub-region 220 and is provided with a plurality of second notches 132 communicating with the second electrolysis sub-region 220. Similar to the first flow channel 30, it allows the electrolyte to flow between the flow channel and the second electrolysis sub-region 220.

[0090] The electrode frame 120 is responsible for supporting the electrodes and at the same time provides a path for the flow of the electrolyte. The first liquid inlet channel 50 is located at the lower part of the electrode frame 120 and is used to introduce fresh electrolyte into the electrolysis region 20. The first liquid outlet channel 60 is located at the lower part of the electrode frame 120, close to the separator 130, receives the electrolyte flowing out of the first electrolysis sub-region 210, and guides it to the end of the first flow channel 30. The second liquid outlet channel 80 is located at the upper part of the electrode frame 120 and is used to receive the electrolyte flowing out of the second electrolysis sub-region 220. The second liquid inlet channel 70 is located at the upper part of the electrode frame 120, close to the separator 130, and introduces fresh electrolyte into the second flow channel 40, and then flows into the second electrolysis sub-region 220.

[0091] Fresh electrolyte enters the electrolysis region 20 through the first liquid inlet channel 50, and then flows into the first electrolysis sub-region 210 through the first notch 131 on the first flow channel 30 of the separator 130. During the electrolysis process, ions in the electrolyte react on the electrodes. The electrolyte after the reaction flows back into the first flow channel 30 through other first notches 131 and is finally discharged through the first liquid outlet channel 60. Similarly, fresh electrolyte enters the second flow channel 40 through the second liquid inlet channel 70, flows into the second electrolysis sub-region 220 through the second notch 132, and the electrolyte after the reaction flows out through other second notches 132 on the second flow channel 40 and is discharged through the second liquid outlet channel 80.

[0092] It can be understood that through the joint cooperation of the separator 130, the electrode frame 120, multiple electrolysis sub-regions and multiple flow channels, the effective flow of the electrolyte between the two electrolysis sub-regions can be ensured, and the uniform distribution and effective flow of the electrolyte between the two electrolysis sub-regions can be guaranteed, thereby improving the electrolysis efficiency and product quality. At the same time, through the flow channels and notches on the separator 130, the flow rate and velocity of the electrolyte can be precisely controlled, further optimizing the electrolysis process.

[0093] In some embodiments, as Figure 4 and Figure 5 shown, the separator 130 includes N spaced apart, dividing the electrolysis region 20 into N + 1 electrolysis sub-regions, where N is a positive integer.

[0094] Taking N = 1 as an example, the electrolysis region 20 includes a first electrolysis sub-region 210 and a second electrolysis sub-region 220. The lower part of the electrode frame 120 and the lower side of the separator 130 define the boundary of the first electrolysis sub-region 210, and the upper part of the electrode frame 120 and the upper side of the separator 130 define the boundary of the second electrolysis sub-region 220.

[0095] Among them, the side boundary and the lower boundary of the first electrolysis sub-region 210 are defined by the lower part of the electrode frame 120, and the upper boundary is defined by the lower side of the separator 130. The side boundary and the upper boundary of the second electrolysis sub-region 220 are defined by the upper part of the electrode frame 120, and the lower boundary is defined by the upper side of the separator 130.

[0096] Taking N = 2 as an example, the electrolysis region 20 includes a first electrolysis sub-region 210, a second electrolysis sub-region 220 and a third electrolysis sub-region 230. The lower part of the electrode frame 120 and the lower side of the separator 130 close to the lower part of the electrode frame 120 define the boundary of the first electrolysis sub-region 210, the upper part of the electrode frame 120 and the upper side of the separator 130 define the boundary of the third electrolysis sub-region 230, and the boundary of the second electrolysis sub-region 220 is defined between adjacent separators 130.

[0097] Among them, the side and lower boundaries of the first electrolysis sub-region 210 are defined by the lower part of the pole frame 120, the upper boundary is defined by the lower side edge of the separator 130, the side and upper boundaries of the third electrolysis sub-region 230 are defined by the upper part of the pole frame 120, the lower boundary is defined by the upper side edge of the separator 130, the side boundary of the second electrolysis sub-region 220 is defined by the pole frame 120, the upper boundary is defined by the lower side edge of the separator 130, and the lower boundary is defined by the upper side edge of the separator 130.

[0098] It can be understood that N separators 130 distributed at intervals divide the electrolysis region 20 into N + 1 electrolysis sub-regions, and N is a positive integer, which can realize the circulating flow of the electrolyte, ensure the uniform distribution of the electrolyte during the electrolysis process, improve the over-temperature problem of the electrolytic cell, and improve the electrolysis efficiency.

[0099] In some embodiments, as Figure 6 shown, there are multiple separators 130, and at least two separators 130 are arranged in a crosswise manner.

[0100] At least two separators 130 are arranged in a crosswise manner, which can define multiple electrolysis sub-regions with the pole frame 120. The electrolysis region 20 is divided into multiple electrolysis sub-regions by multiple crosswise separators 130, and the boundaries are jointly defined by the separator 130 and the pole frame 120. The joint cooperation of the separator 130 and the pole frame 120 can ensure the effective flow of the electrolyte between multiple electrolysis sub-regions.

[0101] Taking the crosswise arrangement of two separators 130 as an example, the electrolysis region 20 is divided into a first electrolysis sub-region 210, a second electrolysis sub-region 220, a third electrolysis sub-region 230, and a fourth electrolysis sub-region 240 by two crosswise separators 130. The boundaries are jointly defined by the separator 130 and the pole frame 120. The joint cooperation of the separator 130 and the pole frame 120 can ensure the effective flow of the electrolyte between the four electrolysis sub-regions.

[0102] It can be understood that through the cooperation of the pole frame 120 and multiple separators 130, the electrolysis region 20 can form multiple independent electrolysis sub-regions, providing a stable environment and conditions for the electrolysis reaction, helping to improve the electrolysis efficiency, reduce the energy consumption, and facilitating the management and control of different electrolysis processes.

[0103] The embodiments of the present application will be specifically described below.

[0104] The electrode plate 10 includes: a main board body 110, a pole frame 120, and at least one separator 130.

[0105] The pole frame 120 surrounds the outer circle of the main board body 110 and defines an electrolysis area 20 with the main board body 110. There are gas-liquid changes and flows during the electrolysis process in the electrolysis area 20. Both ends of the separator 130 are connected to the pole frame 120, dividing the electrolysis area 20 into at least two electrolysis sub-areas.

[0106] Among them, there are various ways to divide the electrolysis area 20, including but not limited to:

[0107] Example 1, as Figure 2 and Figure 4 shown, the electrolysis area 20 is divided into a first electrolysis sub-area 210 and a second electrolysis sub-area 220.

[0108] The separator 130 divides the electrolysis area 20 into a first electrolysis sub-area 210 and a second electrolysis sub-area 220. The lower part of the pole frame 120 and the lower side of the separator 130 define the boundary of the first electrolysis sub-area 210, and the upper part of the pole frame 120 and the upper side of the separator 130 define the boundary of the second electrolysis sub-area 220.

[0109] The first electrolysis sub-area 210 and the second electrolysis sub-area 220 do not need to be evenly distributed, and dividing in the horizontal direction is more conducive to the timely removal of bubbles and reduces the inactive areas with a high gas content. Among them, the separator 130 is provided with a first flow channel 30 and a second flow channel 40 spaced apart in the width direction. The first end of the flow channel extends to the pole frame 120. The lower part of the pole frame 120 is provided with a first liquid inlet channel 50, and the area of the lower part of the pole frame 120 close to the separator 130 is provided with a first liquid outlet channel 60. The first flow channel 30 is close to the first electrolysis sub-area 210 and is provided with a plurality of first notches 131 communicating with the first electrolysis sub-area 210. The end of the first flow channel 30 communicates with the first liquid outlet channel 60.

[0110] The upper part of the pole frame 120 is provided with a second liquid outlet channel 80, and the area of the upper part of the pole frame 120 close to the separator 130 is provided with a second liquid inlet channel 70. The second flow channel is close to the second electrolysis sub-area 220 and is provided with a plurality of second notches 132 communicating with the second electrolysis sub-area 220. The end of the second flow channel 40 communicates with the second liquid inlet channel 70.

[0111] During the actual working process, for the first electrolysis sub-area 210, the electrolyte enters the first electrolysis sub-area 210 from the first liquid inlet channel 50, and the products after the electrolysis reaction enter the first flow channel 30 through a plurality of first notches 131, and then are discharged from the first liquid outlet channel 60. For the second electrolysis sub-area 220, the electrolyte enters the second flow channel 40 from the second liquid inlet channel 70, and then enters the second electrolysis sub-area 220 through a plurality of second notches 132, and the products after the electrolysis reaction are discharged from the second liquid outlet channel 80.

[0112] The first liquid inlet channel 50 and the second liquid inlet channel 70 can replenish the first electrolysis sub-region 210 and the second electrolysis sub-region 220, increasing the secondary distribution of the lye, so that the first electrolysis sub-region 210 and the second electrolysis sub-region 220 are timely replenished with fresh lye. The first liquid outlet channel 60 and the second liquid outlet channel 80 can timely discharge the gas generated in the first electrolysis sub-region 210 and the second electrolysis sub-region 220, reducing the gas resistance and improving the hydrogen production efficiency of the electrolytic cell.

[0113] Example 2, as Figure 5 shown, the electrolysis region 20 is divided into a first electrolysis sub-region 210, a second electrolysis sub-region 220, and a third electrolysis sub-region 230.

[0114] The separator 130 includes two spaced apart, dividing the electrolysis region 20 into a first electrolysis sub-region 210, a second electrolysis sub-region 220, and a third electrolysis sub-region 230. The lower part of the electrode frame 120 and the lower side of the separator 130 near the lower part of the electrode frame 120 define the boundary of the first electrolysis sub-region 210. The upper part of the electrode frame 120 and the upper side of the separator 130 define the boundary of the third electrolysis sub-region 230. The boundary of the second electrolysis sub-region 220 is defined between adjacent separators 130.

[0115] The first electrolysis sub-region 210, the second electrolysis sub-region 220, and the third electrolysis sub-region 230 do not need to be evenly distributed, and dividing in the horizontal direction is more conducive to the timely discharge of bubbles, reducing the inactive regions with high gas content.

[0116] During the actual working process, the electrolyte enters the electrolysis sub-region from the liquid inlet channel corresponding to the electrolysis sub-region. After the electrolysis reaction, the products enter the flow channel corresponding to the electrolysis sub-region through multiple notches on the separator 130, and then are discharged from the corresponding liquid outlet channel.

[0117] Both the inlet and outlet flow channels of the electrolyte are arranged on the electrode frame 120. The inlet channel can replenish the electrolysis sub-region, increasing the secondary distribution of the lye, so that the electrolysis sub-region is timely replenished with fresh lye. The outlet channel can timely discharge the gas generated in the electrolysis sub-region, reducing the gas resistance and improving the hydrogen production efficiency of the electrolytic cell.

[0118] Example 3, as Figure 6 shown, the electrolysis region 20 is divided into a first electrolysis sub-region 210, a second electrolysis sub-region 220, a third electrolysis sub-region 230, and a fourth electrolysis sub-region 240.

[0119] The separator 130 includes two that are arranged crosswise to divide the electrolysis region 20 into a first electrolysis sub-region 210, a second electrolysis sub-region 220, a third electrolysis sub-region 230, and a fourth electrolysis sub-region 240. The separator 130 and the bipolar frame 120 jointly define the boundary. The combined cooperation of the separator 130 and the bipolar frame 120 can ensure the effective flow of the electrolyte between the four electrolysis sub-regions.

[0120] During the actual working process, the electrolyte enters the electrolysis sub-region from the liquid inlet channel corresponding to the electrolysis sub-region. The products after the electrolysis reaction enter the flow channel corresponding to the electrolysis sub-region through multiple notches on the separator 130, and then are discharged from the corresponding liquid outlet channel.

[0121] Both the inlet and outlet channels of the electrolyte are arranged on the bipolar frame 120. The inlet channel can replenish the electrolysis sub-region, increase the secondary distribution of the lye, so that the electrolysis sub-region has fresh lye replenished in time. The outlet channel can timely discharge the gas generated in the electrolysis sub-region, reduce the gas resistance, and improve the hydrogen production efficiency of the electrolytic cell.

[0122] The embodiment of the present application also provides an electrolytic cell, in which a plurality of electrode plates 10 are stacked.

[0123] In the technical solution of the present application, the stacked arrangement of the plurality of electrode plates 10 in the electrolytic cell can optimize the electrolysis efficiency, reduce the cost, and improve the stability of the equipment. The electrolytic cell forms the main structure of the electrolytic cell through the stacked and staggered arrangement of the electrode plates 10. The stacked structure can reduce the volume of the electrolytic cell, reduce the energy consumption and operating cost of the equipment, and at the same time reduce the disturbance of the electrolyte during the flow process, and improve the stability of the electrolytic cell.

[0124] The electrode plate 10 is provided with positioning holes for fixing the position of the electrode plate 10. Through the cooperation of the sealing ring and the positioning holes, the sealing performance between the electrode plates 10 can be ensured, and the uniform distribution of the current between the electrode plates 10 can be ensured to improve the electrolysis efficiency. At the same time, the distance between the electrode plates 10 needs to be reasonably designed according to the fluidity of the electrolyte and the electrolysis requirements to ensure the cyclic flow of the electrolyte in the electrolytic cell to maintain the concentration and temperature of the electrolyte.

[0125] It can be understood that through the stacked arrangement of the plurality of electrode plates 10 in the electrolytic cell, the surface area of the electrode plates 10 can be increased, thereby increasing the contact area of the electrolyte, improving the electrolysis efficiency, and realizing the efficient and stable operation of the electrolytic cell.

[0126] The embodiment of the present application also provides an electrolytic hydrogen production system, and the electrolytic hydrogen production system may include: an electrolytic cell.

[0127] An electrolytic hydrogen production system generally includes: a hydrogen production device, a purification device, and a drying device. The hydrogen production device includes an electrolytic cell and a gas-liquid separator, which are responsible for electrolyzing water to produce hydrogen. The purification device includes a hydrogen heater, a deoxidizer, a cooler, and a condensate separator connected in sequence, which are responsible for removing oxygen and most of the water in the crude hydrogen. The drying device includes a regeneration gas branch and a plurality of drying devices, and the regeneration gas branch is a circulation system for regenerating the drying devices.

[0128] It can be understood that through the effective cooperation of the hydrogen production device, the purification device, and the drying device, impurities in hydrogen can be effectively removed, its purity and quality can be improved, providing a strong guarantee for the stable operation of the electrolytic hydrogen production system.

[0129] The embodiment of this application also provides a hydrogen production station, which may include: an electrolytic hydrogen production system and a green power generation system.

[0130] The green power generation system can be used to supply power to the electrolytic hydrogen production system. For example, it can be a photovoltaic power generation system, a wind power generation system, or a hydroelectric power generation system. It is a green hydrogen production source based on clean energy. The photovoltaic power generation system can utilize the photovoltaic effect of semiconductors to directly convert light energy into electrical energy, and then supply power to the electrolytic hydrogen production system to drive the electrolysis process to produce hydrogen. The wind power generation system can directly convert wind energy into electrical energy. Although it is unstable, it can also provide continuous power supply for the electrolytic hydrogen production system. The hydroelectric power generation system can utilize the energy generated by water flow or water level difference to generate electricity for supplying power to the electrolytic hydrogen production system.

[0131] It can be understood that the green power generation system can provide clean and renewable power for the electrolytic hydrogen production system, which helps to promote the green development of the hydrogen energy industry and is conducive to environmental protection and sustainable development.

[0132] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described here. And the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0133] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0134] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0135] In the description of the present application, the meaning of "a plurality of" is two or more.

[0136] In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0137] In the description of the present application, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0138] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0139] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electrode plate of an electrolytic cell, characterized in that, Comprising: Main board body; Pole frame, the pole frame surrounds the outer circle of the electrode plate, and defines an electrolysis area with the electrode plate; At least one separator, both ends of the separator are connected to the pole frame to divide the electrolysis area into at least two electrolysis sub-areas; Wherein, the pole frame is provided with multiple groups of electrolyte inlet and outlet channels, and each electrolysis sub-area is communicated with the corresponding inlet and outlet channels.

2. The electrode plate of the electrolytic cell according to claim 1, characterized in that, The separator is provided with at least one channel, and the electrolysis sub-area is communicated with the inlet channel or the outlet channel through the channel.

3. The electrode plate of the electrolytic cell according to claim 2, characterized in that, The separator is provided with a first channel and a second channel spaced apart in the width direction, the first channel and the second channel are respectively communicated with the adjacent electrolysis sub-areas, and one of them is communicated with the inlet channel and the other is communicated with the outlet channel.

4. The electrode plate of the electrolytic cell according to claim 2, characterized in that, The channel extends from one end of the separator to the other end, and is communicated with the corresponding electrolysis sub-area through a plurality of gaps arranged at intervals.

5. The electrode plate of the electrolytic cell according to claim 2, wherein, The first end of the channel extends to the pole frame, and one of the inlet channel and the outlet channel is communicated with the first end of the corresponding channel.

6. The electrode plate of the electrolytic cell according to any one of claims 1-5, characterized in that, The electrolysis area includes a first electrolysis sub-area and a second electrolysis sub-area, the lower part of the pole frame and the lower side of the separator define the boundary of the first electrolysis sub-area, and the upper part of the pole frame and the upper side of the separator define the boundary of the second electrolysis sub-area.

7. The electrode plate of the electrolytic cell according to claim 6, characterized in that, The separator is formed with a first channel and a second channel; The lower part of the pole frame is provided with a first inlet channel, the area of the lower part of the pole frame close to the separator is provided with a first outlet channel, the first channel is close to the first electrolysis sub-area and is provided with a plurality of first gaps communicated with the first electrolysis sub-area, and the end of the first channel is communicated with the first outlet channel; The upper part of the pole frame is provided with a second outlet channel, the area of the upper part of the pole frame close to the separator is provided with a second inlet channel, the second channel is close to the second electrolysis sub-area and is provided with a plurality of second gaps communicated with the second electrolysis sub-area, and the end of the second channel is communicated with the second inlet channel.

8. The electrode plate of the electrolytic cell according to any one of claims 1-5, characterized in that, The separator includes N spaced apart, to divide the electrolysis area into N + 1 electrolysis sub-areas, N is a positive integer.

9. The electrode plate of the electrolytic cell according to any one of claims 1-5, characterized in that, The separator is multiple, and at least two separators are arranged crosswise.

10. An electrolytic cell, characterized in that, Comprising: Multiple electrode plates according to any one of claims 1-9, and the multiple electrode plates are stacked.

11. An electrolytic hydrogen production system, characterized in that, Comprising: The electrolytic cell according to claim 10.

12. A hydrogen production station, characterized in that, Comprising: The electrolytic hydrogen production system according to claim 11; Green power generation system.

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