Electrolytic bath and manufacturing method thereof

Abstract

The invention provides an electrolytic bath and a manufacturing method thereof, the electrolytic bath comprises a first module and a second module, the first module comprises a first polar plate and a first preset number of first bipolar plates which are stacked in sequence; the second module is stacked on the side, away from the first polar plate, of the first module and comprises a first middle plate, a second preset number of second bipolar plates and a second polar plate which are sequentially stacked, and the first middle plate is located on the side, close to the first module, of the second preset number of second bipolar plates; the second polar plates are located on the sides, away from the first module, of the second bipolar plates with the second preset number, one of the second polar plates and the first polar plates is a positive plate, and the other one is a negative plate. By optimizing the structural design and the assembly process of the electrolytic cell, the assembly efficiency is improved, and meanwhile, the precision and the quality in the assembly process are ensured.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of hydrogen production equipment, in particular to an electrolytic cell and a manufacturing method thereof. BACKGROUND

[0002] In the current vertical assembly process of mainstream high-pressure caustic electrolytic cells, the first challenge is the high stacking height due to the use of horizontal stacking of each part. A large number of parts are stacked layer by layer, and as the number of stacked parts increases, the overall height accumulates. Not only is there a high requirement for the space height of the assembly site, but also the assembly difficulty of the parts at a high position increases during operation, and workers need to use climbing equipment for operation, which increases the operation complexity and risk. During the stacking process, due to the large number of parts, it is difficult to ensure that each part is accurately placed in the ideal position. For example, when manually transporting and placing parts such as bipolar plates, there may be slight deviations, and the cumulative deviation can easily lead to uneven stacking of the electrolytic cell. This unevenness can manifest as protrusions or depressions in some areas of the electrolytic cell, which is extremely irregular in appearance and affects the overall aesthetics and quality image of the product. At the same time, tilting is also common, which can be caused by uneven placement of the bottom parts or uneven force during stacking, causing the entire electrolytic cell to be not vertical but tilted at a certain angle. This not only affects the subsequent connection and installation of other equipment, but also generates additional stress on the internal structure, threatening the structural stability and safety of the electrolytic cell. Stacking distortion is a more serious problem, which can occur when multiple parts are combined due to the twisting of a key part or improper assembly sequence, resulting in internal distortion of the entire electrolytic cell. This can disrupt the alignment relationship of the internal channels designed originally, affecting the flow path and efficiency of the electrolyte and gas, and thus reducing the working performance and hydrogen production efficiency of the electrolytic cell. From a safety perspective, this non-standard stacking state, especially tilting and distortion, can cause the center of gravity of the electrolytic cell to shift during lifting and turning, resulting in shaking or even falling, which directly threatens the safety of the operators and can also cause damage to surrounding equipment and facilities. In terms of assembly results and batch manufacturing quality consistency, due to the different degrees of stacking deviation in each assembly, it is difficult to ensure that each electrolytic cell has the same assembly precision and performance parameters. For large-scale production, the uneven quality of the products increases the cost of after-sales maintenance and the risk of customer complaints, reducing the market competitiveness of the enterprise. In addition, repeated work is required at the same work station, and frequent measurement and adjustment are required to ensure the position accuracy of the bipolar plates during assembly. Each time a bipolar plate is installed, the position needs to be determined using measurement tools, and if there is a deviation, the adjustment needs to be re-made, which greatly prolongs the assembly time of a single electrolytic cell. In batch production, this inefficient assembly method seriously hinders the overall production progress, increasing production costs and delivery cycles. SUMMARY

[0003] The electrolytic cell and the manufacturing method thereof according to the embodiments of the present application are aimed at improving the assembly efficiency and precision of the electrolytic cell.

[0004] To solve the above technical problems, the electrolytic cell according to the embodiments of the present application comprises:

[0005] The first module comprises a first electrode plate and a first preset number of first bipolar plates which are sequentially stacked.

[0006] The second module is stacked on the side of the first module away from the first electrode plate, and comprises a first intermediate plate, a second preset number of second bipolar plates and a second electrode plate which are sequentially stacked. The first intermediate plate is located on the side of the second preset number of second bipolar plates close to the first module, and the second electrode plate is located on the side of the second preset number of second bipolar plates away from the first module. The second electrode plate and one of the first electrode plates are positive electrode plates, and the other is a negative electrode plate.

[0007] To achieve the above-mentioned purpose, the present application further provides a manufacturing method of an electrolytic cell, comprising:

[0008] The first module and the second module are assembled by using a first module clamping tool and a second module clamping tool respectively to obtain a first integrated body and a second integrated body. The first integrated body is the first module assembled with the first module clamping tool so as to clamp the first module by the first module clamping tool. The second integrated body is the second module assembled with the second module clamping tool so as to clamp the second module by the second module clamping tool.

[0009] The first integrated body and the second integrated body are stacked and assembled along a preset direction, and the first module clamping tool and the second module clamping tool are removed to obtain an electrolytic cell. The preset direction is a vertical direction or a horizontal direction.

[0010] Compared with the prior art, the present application has the following beneficial effects:

[0011] The electrolytic cell is modularly designed by in-depth analysis of the structure and function of the electrolytic cell, and the electrolytic cell is divided into a first module, a second module and the like. Each module can be independently pre-assembled, and then a plurality of modules can be assembled together. Thus, the role of different assembly stations can be fully played, the parallel development of assembly work can be realized, the overall assembly time is greatly shortened, the assembly efficiency is improved, and the precision and quality in the assembly process are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0012] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which are illustrative, but not restrictive, of the embodiments, wherein elements having the same reference number designates like elements throughout the various figures, like in the figures of the drawing. The figures of the drawing are not to scale.

[0013] Figure 1 Structure diagram of electrolytic cell in the embodiment of the present application;

[0014] Figures 2a to 2f Structure diagram of the first module in the embodiment of the present application; Figure 1 Structure diagram of the first module in the embodiment of the present application;

[0015] Figure 3a Structure diagram of the first module in the embodiment of the present application; Figure 2a Structure diagram of the first module in the embodiment of the present application;

[0016] Figure 3b Structure diagram of the first module in the embodiment of the present application; Figure 2a Structure diagram of the first module in the embodiment of the present application;

[0017] Figure 3c Structure diagram of the first module in the embodiment of the present application; Figure 2b Structure diagram of the first module in the embodiment of the present application;

[0018] Figure 3d Structure diagram of the first module in the embodiment of the present application; Figure 2b Structure diagram of the first module in the embodiment of the present application;

[0019] Figure 3e Structure diagram of the first module in the embodiment of the present application; Figure 2d Structure diagram of the first module in the embodiment of the present application;

[0020] Figure 3f Structure diagram of the first module in the embodiment of the present application; Figure 2d Structure diagram of the first module in the embodiment of the present application;

[0021] Figures 4a to 4f Structure diagram of the first module in the embodiment of the present application; Figure 1 Structure diagram of the first module in the embodiment of the present application;

[0022] Figure 5a Structure diagram of the first module in the embodiment of the present application; Figure 4a Structure diagram of the first module in the embodiment of the present application;

[0023] Figure 5b Structure diagram of the first module in the embodiment of the present application; Figure 5a Structure diagram of the first module in the embodiment of the present application;

[0024] Figure 5c Structure diagram of the first module in the embodiment of the present application; Figure 4a Structure diagram of the first module in the embodiment of the present application;

[0025] Figure 5d Structure diagram of the first module in the embodiment of the present application; Figure 4d Structure diagram of the first module in the embodiment of the present application;

[0026] Figure 5e For Figure 4d The structure schematic view of the top of the middle module combined with the first module clamping tool;

[0027] Figures 6a to 6f For Figure 1 The assembly schematic view of the second module;

[0028] Figure 7a For Figure 6a The structure schematic view of the first intermediate plate;

[0029] Figure 7b For Figure 7a The structure schematic view of the pin hole;

[0030] Figure 7c For Figure 6a The structure schematic view of the positioning pin;

[0031] Figure 7d For Figure 6c The structure schematic view of the second polar plate;

[0032] Figure 7e For Figure 6d The structure schematic view of the bottom of the second module combined with the second module clamping tool;

[0033] Figure 7f For Figure 6d The structure schematic view of the top of the second module combined with the second module clamping tool;

[0034] Figure 8a And Figure 8b For Figure 1 The two assembly schematic views of the electrolytic cell;

[0035] Figures 9a to 9d The structure schematic view of the module assembly base, the first module clamping tool, the second module clamping tool and the module assembly base in the embodiment of the application respectively;

[0036] Figure 10 The assembly flow chart of the electrolytic cell in the embodiment of the application.

[0037] The drawing number explanation of the application:

[0038] Electrolytic cell 100, first module 10, first polar plate 1a, second polar plate 1b, first bipolar plate 2a, second bipolar plate 2b, third bipolar plate 2c, first intermediate plate 3a, second intermediate plate 3b, positioning pin 4, pin hole 5, bottom groove 6, top groove 7, second module 20, intermediate module 30, connecting mechanism 40, first end pressing plate 41, second end pressing plate 42, fastening screw 43, fastening nut 44, first integrated body 50, second integrated body 60, intermediate integrated body 70, first module clamping tool 200, first bottom chuck 210, first top clamp 220, first bottom clamp 230, first pull rod 240, first elastic buckle 250, second module clamping tool 300, second bottom chuck 310, top chuck 320, second top clamp 330, second bottom clamp 340, second pull rod 350, second elastic buckle 360, module assembly base 400, interface 410, support leg 420, module pressing tool 500, flange plate 510, pressing plate 520, lifting lug 530, support frame 540, driving rod 550, stacking base 600.

[0039] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0040] As can be known from the background, the existing electrolytic cell assembly process is often cumbersome and lacks systematic optimization. For example, the installation sequence of the parts may not be carefully designed, resulting in the need to repeatedly adjust the position of the installed parts during assembly to adapt to the installation needs of subsequent parts. This not only wastes a lot of time, but also easily introduces human errors, reducing assembly accuracy. Moreover, the reliance on tools and fixtures in the traditional assembly process is relatively single, lacking special efficient tools for different assembly steps, making the operation inconvenient and difficult to ensure consistency.

[0041] The present application divides the electrolytic cell into multiple modules such as the first module and the second module through in-depth analysis of the structure and function of the electrolytic cell. In this way, each module can be independently pre-assembled, and multiple modules can be assembled together, so that the functions of different assembly stations can be fully utilized, the parallel development of assembly work can be realized, the overall assembly time can be greatly shortened, the assembly efficiency can be improved, and each module can be assembled in a relatively independent environment, facilitating quality control and problem troubleshooting, ensuring the precision and quality during assembly.

[0042] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of the present application.

[0043] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0044] In addition, if the embodiments of the present application involve descriptions of “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope of the present application.

[0045] The present application provides an electrolytic cell, Figures 1 to 8b A preferred embodiment of the electrolytic cell provided by the present application is shown.

[0046] Please refer to Figure 1 In the embodiment, the electrolytic cell 100 includes a first module 10 and a second module 20. The first module 10 includes a first electrode plate 1a and a first preset number of first bipolar plates 2a which are sequentially stacked. The second module 20 is stacked on the side of the first module 10 away from the first electrode plate 1a. The second module 20 includes a first intermediate plate 3a, a second preset number of second bipolar plates 2b, and a second electrode plate 1b which are sequentially stacked. The first intermediate plate 3a is located on the side of the second preset number of second bipolar plates 2b close to the first module 10. The second electrode plate 1b is located on the side of the second preset number of second bipolar plates 2b away from the first module 10. One of the first electrode plate 1a and the second electrode plate 1b is a positive electrode plate, and the other is a negative electrode plate.

[0047] Specifically, the electrolytic tank 100 can be a high-pressure caustic lye electrolytic tank, and the following will be introduced by taking the electrolytic tank 100 as a high-pressure caustic lye electrolytic tank as an example. The electrolytic tank 100 is a modular electrolytic tank, based on the in-depth analysis of the structure and function of the electrolytic tank 100, the electrolytic tank 100 is divided into a plurality of modules, and the plurality of modules are stacked along a preset direction to form the electrolytic tank 100, wherein the preset direction can be a horizontal direction or a vertical direction, and the following will be introduced by taking the preset direction as a vertical direction as an example.

[0048] The plurality of modules of the electrolytic tank 100 include a first module 10 and a second module 20, the first module 10 is located at the lower side of the second module 20, the first module 10 includes a first polar plate 1a and a plurality of first bipolar plates 2a located at the upper side of the first polar plate 1a. The second module 20 includes a first intermediate plate 3a, a plurality of second bipolar plates 2b located at the upper side of the first intermediate plate 3a, and a second polar plate 1b located at the upper side of the plurality of second bipolar plates 2b. The second polar plate 1b can be a positive polar plate, and the first polar plate 1a is a negative polar plate; the second polar plate 1b can also be a negative polar plate, and the first polar plate 1a is a positive polar plate, and the following will be introduced by taking the first polar plate 1a as a negative polar plate and the second polar plate 1b as a positive polar plate, i.e. the first module 10 is a negative polar module, and the second module 20 is a positive polar module as an example.

[0049] The first module 10 includes a first preset number of first bipolar plates 2a, and the second module 20 includes a second preset number of second bipolar plates 2b. The first bipolar plate 2a and the second bipolar plate 2b can be the same type of bipolar plate, and the first bipolar plate 2a and the second bipolar plate 2b can also be two types of bipolar plates respectively. Optionally, please refer to Figure 1 In this embodiment, the first bipolar plate 2a and the second bipolar plate 2b are the same type of bipolar plate, i.e. the first bipolar plate 2a and the second bipolar plate 2b are the same. Thus, the same type of bipolar plate is used to assemble the first module 10 and the second module 20 of the electrolytic tank 100, which can reduce the types of parts of the electrolytic tank 100. Among them, the specific number of first bipolar plates 2a included in the first module 10 can be set according to actual conditions, for example, the first module 10 can include 30-70 first bipolar plates 2a, i.e. the first preset number can be 30-70. Similarly, the specific number of second bipolar plates 2b included in the second module 20 can be set according to actual conditions, for example, the second module 20 can include 30-70 second bipolar plates 2b, i.e. the second preset number can be 30-70.

[0050] The second module 20 includes a first intermediate plate 3a, which is located at the lower side of the second bipolar plate 2b and the second polar plate 1b. Thus, the second module 20 relies on the first intermediate plate 3a, the first intermediate plate 3a serves as the key support structure of the second module 20, and the first intermediate plate 3a is provided with a channel to form a smooth flow path for hydrogen and oxygen and caustic lye. Optionally, please refer toFigure 7a In the embodiment, the first intermediate plate 3a is a fourth bipolar plate. The fourth bipolar plate and the second bipolar plate 2b can be the same type of bipolar plate, or the fourth bipolar plate and the second bipolar plate 2b can be two different types of bipolar plates.

[0051] The thickness of the first intermediate plate 3a and the thickness of the second bipolar plate 2b can be equal or unequal. Optionally, please refer to Figure 6b Figure 6c and Figure 7e In the embodiment, the thickness of the first intermediate plate 3a is greater than the thickness of the second bipolar plate 2b. By setting the first intermediate plate 3a to be thicker than the second bipolar plate 2b, the structural strength of the first intermediate plate 3a is improved, so that the first intermediate plate 3a can better support the second module 20. In the following, the first intermediate plate 3a is taken as an example to introduce the case that the fourth bipolar plate is thicker than the second bipolar plate 2b.

[0052] Each module of the electrolytic cell 100 is independently pre-assembled, and the plurality of modules of the electrolytic cell 100 are stacked in sequence along the up-down direction, and then the plurality of modules are fixed and assembled together, thereby completing the overall assembly of the electrolytic cell 100. To achieve the fixed connection of the plurality of modules of the electrolytic cell 100, a fixed connection structure can be provided between any two adjacent modules to achieve the fixed connection of the plurality of modules of the electrolytic cell 100; or a fixed connection mechanism can be provided between the uppermost module and the lowermost module, the uppermost module and the lowermost module are fixedly connected through the fixed connection mechanism, and the other modules between the uppermost module and the lowermost module are clamped and fixed.

[0053] Optionally, please refer to Figure 1 In the embodiment, the electrolytic cell 100 further comprises a connecting mechanism 40, the connecting mechanism 40 connects the first module 10 and the second module 20 to fix the electrolytic cell 100 in the stacking direction of the electrolytic cell 100 through the connecting mechanism 40. The connecting mechanism 40 is arranged between the first module 10 and the second module 20, so that each module of the electrolytic cell 100 can be independently pre-assembled, and then the plurality of module groups of the electrolytic cell 100 are stacked in sequence along the up-down direction, and the plurality of module groups are assembled together through the connecting mechanism 40, thereby completing the overall assembly of the electrolytic cell 100. In the following, the electrolytic cell 100 further comprises the connecting mechanism 40 as an example to introduce.

[0054] In this way, the electrolytic cell 100 realizes modularized split assembly through a unique structural design, improves the assembly efficiency, and the unique structural design can make the electrolytic cell 100 more convenient and efficient during assembly, reduces the assembly time and labor cost, and improves the assembly quality and the overall performance of the equipment, which has a wide application prospect.

[0055] ​The electrolytic cell 100 is modularly designed by in-depth analysis of the structure and function of the electrolytic cell 100, and the electrolytic cell 100 is divided into a first module 10, a second module 20 and the like. In this way, each module can be independently pre-assembled, and then the plurality of modules can be assembled together, so that the functions of different assembly stations can be fully utilized, the parallel development of assembly work can be realized, the overall assembly time is greatly shortened, the assembly efficiency is improved, and each module is assembled in a relatively independent environment, facilitating quality control and problem troubleshooting, and ensuring the precision and quality in the assembly process.

[0056] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings.

[0057] According to the specific number of bipolar plates of the electrolytic cell 100, the electrolytic cell 100 can be divided into two, three, four or more modules. For example, when the electrolytic cell 100 is divided into two modules, the electrolytic cell 100 is only divided into the first module 10 and the second module 20. Alternatively, please refer to Figure 1 In the present embodiment, the electrolytic cell 100 further comprises an intermediate module 30, the intermediate module 30 is stacked between the first module 10 and the second module 20; the intermediate module 30 comprises a second intermediate plate 3b and a third preset number of third bipolar plates 2c stacked, and the third preset number of third bipolar plates 2c is provided with the second intermediate plate 3b close to one side of the first module 10 and / or close to one side of the second module 20.

[0058] Specifically, the electrolytic cell 100 is divided into at least three modules, in addition to the first module 10 and the second module 20, the electrolytic cell 100 further comprises one or more intermediate modules 30. When the electrolytic cell 100 comprises a plurality of intermediate modules 30, the plurality of intermediate modules 30 are sequentially stacked between the first module 10 and the second module 20 along the up-down direction.

[0059] The modules are clearly divided into three categories according to the position in the electrolytic cell 100, namely the first module 10 (i.e. the negative electrode module), the intermediate module 30, and the second module 20 (i.e. the positive electrode module). In a positive-negative electrolytic cell structure, the negative electrode module and the positive electrode module usually only have one each, respectively assuming the electrode function and structural support role at both ends of the electrolytic cell 100. The specific number of intermediate modules 30 can be set according to the specific specifications and design requirements of the electrolytic cell 100, for example, the intermediate module 30 is stacked with 2-6 intermediate modules 30 along the stacking direction of the electrolytic cell 100, the intermediate module 30 connects the negative electrode module and the positive electrode module, and together builds a complete internal structure system of the electrolytic cell. The intermediate module 30 plays a key role in connecting and transitioning in the electrolytic cell 100, and its precise assembly is crucial to ensuring the continuity and sealing of the internal flow channel of the electrolytic cell 100.

[0060] The intermediate module 30 comprises a third preset number of third bipolar plates 2c. The third bipolar plates 2c can be the same type as the first bipolar plates 2a, or the third bipolar plates 2c and the first bipolar plates 2a can be two different types. Alternatively, please refer to Figure 1 In this embodiment, the third bipolar plates 2c are the same type as the first bipolar plates 2a, that is, the third bipolar plates 2c are the same as the first bipolar plates 2a. In this way, the same type of bipolar plates is used to assemble the first module 10 and the intermediate module 30 of the electrolytic cell 100, which can reduce the types of parts of the electrolytic cell 100. The specific number of third bipolar plates 2c included in the intermediate module 30 can be set according to actual conditions. For example, the intermediate module 30 can include 30-70 third bipolar plates 2c, that is, the third preset number can be 30-70.

[0061] The electrolytic cell 100 is divided into 4-8 modules, and each module contains 30-70 bipolar plates. This modular decomposition method provides a new idea for efficient assembly. Through independent pre-assembly between modules, the functions of different workstations can be fully utilized, parallel assembly can be achieved, and the overall assembly time is greatly shortened. Each module is assembled in a relatively independent environment, which facilitates quality control and problem troubleshooting, and improves the stability and reliability of the assembly quality. The electrolytic cell 100 is divided into 4 modules, i.e., the first module 10, the second module 20, and 2 intermediate modules 30, which will be introduced below.

[0062] The intermediate module 30 also comprises a second intermediate plate 3b, which is provided with a channel to form a smooth flow path for oxygen and alkali solution. The layout of the second intermediate plate 3b is very flexible. The second intermediate plate 3b can be arranged only on the lower side of the third preset number of third bipolar plates 2c. In this way, the second intermediate plate 3b is arranged on the bottom layer of the intermediate module 30, which can bear the functions of initial support and flow guide. The second intermediate plate 3b can also be arranged only on the upper side of the third preset number of third bipolar plates 2c. In this way, the second intermediate plate 3b is arranged on the top layer of the intermediate module 30, which can effectively stabilize and connect the flow channels of the intermediate module 30. The second intermediate plate 3b can also be arranged on the upper and lower sides of the third preset number of third bipolar plates 2c, respectively. In this way, the second intermediate plate 3b can ensure the structural stability and medium transmission of the intermediate module 30 in all directions. The second intermediate plate 3b arranged on the lower side of the third preset number of third bipolar plates 2c will be introduced below.

[0063] The second intermediate plate 3b can be the same type as the first intermediate plate 3a, or the second intermediate plate 3b and the first intermediate plate 3a can be two different types. Alternatively, please refer to Figure 1In the embodiment, the second intermediate plate 3b is the same type of bipolar plate as the first intermediate plate 3a (i.e., the fourth bipolar plate), that is, the second intermediate plate 3b is the same as the first intermediate plate 3a, so the number of parts of the electrolytic cell 100 can be reduced. The following will be described by taking the second intermediate plate 3b as the fourth bipolar plate as an example.

[0064] The thickness of the second intermediate plate 3b and the thickness of the third bipolar plate 2c can be equal or unequal. Optionally, please refer to Figure 4b and Figure 5d In the embodiment, the thickness of the second intermediate plate 3b is greater than the thickness of the third bipolar plate 2c. The second intermediate plate 3b is thicker than the third bipolar plate 2c, which improves the structural strength of the second intermediate plate 3b, so that the second intermediate plate 3b can better support the intermediate module 30.

[0065] Optionally, in other embodiments, the first module 10 further comprises a third intermediate plate (not shown in the figure), which is stacked on the side of the first preset number of first bipolar plates 2a away from the first polar plate 1a.

[0066] Specifically, the third intermediate plate is provided with a channel to form a smooth flow path for oxygen and alkali solution, and the third intermediate plate and the first intermediate plate 3a can be the same type of intermediate plate, for example, the third intermediate plate can be the fourth bipolar plate. The third intermediate plate and the first intermediate plate 3a can also be two different types of intermediate plates. The thickness of the third intermediate plate and the thickness of the first bipolar plate 2a can be equal or unequal, for example, the thickness of the third intermediate plate is greater than the thickness of the first bipolar plate 2a.

[0067] The first module 10 and the intermediate module 30 are designed with careful consideration of the sealing design when docking. When the first module 10 and the intermediate module 30 are equipped with a top plate, the sealing design when docking will be fully considered in the design process.

[0068] Optionally, please refer to Figure 2a , Figure 4a and Figure 6a In the embodiment, the electrolytic cell 100 further comprises a positioning pin 4. The positioning pin 4 can be arranged between any two adjacent polar plates of a module to realize installation positioning between the two adjacent polar plates through the positioning pin 4; or the positioning pin 4 can be arranged between any two adjacent modules of the electrolytic cell 100 to realize installation positioning between the two adjacent modules through the positioning pin 4.

[0069] Optionally, please refer to Figure 2a , Figure 2b , Figures 3a to 3dIn the present embodiment, the first module 10 further comprises positioning pins 4, and the positioning pins 4 are arranged between the first bipolar plate 2a closest to the first polar plate 1a and the first polar plate 1a, and between any two adjacent first bipolar plates 2a. The first polar plate 1a and the first bipolar plate 2a are respectively provided with pin holes 5 for accommodating one end of the positioning pin 4.

[0070] Specifically, the upper and lower surfaces of the first polar plate 1a and the upper and lower surfaces of the first bipolar plate 2a are respectively provided with one or more pin holes 5 arranged along the circumference of the first polar plate 1a. The pin holes 5 on the upper surfaces of the first polar plate 1a and the first bipolar plate 2a are used to accommodate the lower end of the positioning pin 4, and the pin holes 5 on the lower surfaces of the first polar plate 1a and the first bipolar plate 2a are used to accommodate the upper end of the positioning pin 4. In this way, the positioning pin 4 can be arranged between the first bipolar plate 2a closest to the first polar plate 1a and the first polar plate 1a, and between any two adjacent first bipolar plates 2a, so as to realize the installation and positioning of the first polar plate 1a and the plurality of first bipolar plates 2a during the assembly of the first module 10.

[0071] Referring to Figure 9a , the module assembly base 400 can serve as a basic platform for assembling the first module 10, the second module 20, and the intermediate module 30, and provides a stable and horizontal working plane for the assembly of each module. The module assembly base 400 can withstand the weight of the modules and the force during assembly, and ensures that the modules will not be displaced or deformed due to unstable foundation during assembly. Optionally, referring to Figure 2a 、 Figure 2b 、 Figures 3a to 3d In the present embodiment, the working plane of the module assembly base 400 is provided with pin holes 5 for accommodating one end of the positioning pin 4.

[0072] Specifically, the working plane of the module assembly base 400 is provided with one or more pin holes 5 arranged along the circumference of the first polar plate 1a, and the pin holes 5 on the working plane of the module assembly base 400 are used to accommodate the lower end of the positioning pin 4. In this way, when the first module 10 is assembled through the module assembly base 400, the positioning pin 4 can be arranged between the working plane of the module assembly base 400 and the first polar plate 1a, so as to realize the installation and positioning of the first polar plate 1a on the module assembly base 400.

[0073] Optionally, referring to Figure 4a 、 Figure 4b 、 Figures 5a to 5cIn the present embodiment, the second module 20 further comprises positioning pins 4, the positioning pins 4 are arranged between the second bipolar plate 2b closest to the first intermediate plate 3a and the first intermediate plate 3a, between any two adjacent second bipolar plates 2b, and between the second bipolar plate 2b closest to the second polar plate 1b and the second polar plate 1b, and the first intermediate plate 3a has two plate surfaces, the second bipolar plate 2b has two plate surfaces, and the second polar plate 1b has a plate surface close to the second bipolar plate 2b, and each of the plate surfaces is provided with a pin hole 5 for accommodating one end of the positioning pin 4.

[0074] Specifically, the upper plate surface and the lower plate surface of the first intermediate plate 3a, the upper plate surface and the lower plate surface of the second bipolar plate 2b, and the lower plate surface of the second polar plate 1b are each provided with one or more pin holes 5 arranged along the circumference of the second polar plate 1b. The pin holes 5 located on the upper plate surface of the first intermediate plate 3a and the upper plate surface of the second bipolar plate 2b are used to accommodate the lower end of the positioning pin 4, and the pin holes 5 located on the lower plate surface of the first intermediate plate 3a, the lower plate surface of the second bipolar plate 2b, and the lower plate surface of the second polar plate 1b are used to accommodate the upper end of the positioning pin 4. In this way, the positioning pins 4 can be arranged between the second bipolar plate 2b in the lowermost layer and the first intermediate plate 3a, between any two adjacent second bipolar plates 2b, and between the second bipolar plate 2b in the uppermost layer and the second polar plate 1b, so that during the assembly of the second module 20, the first intermediate plate 3a, the second polar plate 1b, and the plurality of second bipolar plates 2b can be positioned and installed. Similarly, when the second module 20 is assembled by the module assembly base 400, the positioning pins 4 can be arranged between the working plane of the module assembly base 400 and the first intermediate plate 3a, so that the first intermediate plate 3a can be positioned and installed on the module assembly base 400.

[0075] Optionally, referring to Figure 6a , Figure 6b , Figures 7a to 7c In the present embodiment, the intermediate module 30 further comprises positioning pins 4, the positioning pins 4 are arranged between the third bipolar plate 2c closest to the second intermediate plate 3b and the second intermediate plate 3b, and between any two adjacent third bipolar plates 2c, and the second intermediate plate 3b has two plate surfaces, and the third bipolar plate 2c has two plate surfaces, and each of the plate surfaces is provided with a pin hole 5 for accommodating one end of the positioning pin 4.

[0076] Specifically, the upper plate surface and the lower plate surface of the second intermediate plate 3b, and the upper plate surface and the lower plate surface of the third intermediate plate 2c are each provided with one or more pin holes 5 arranged along the circumferential direction of the second intermediate plate 3b. The pin holes 5 located on the upper plate surface of the second intermediate plate 3b and the upper plate surface of the third intermediate plate 2c are used to accommodate the lower end of the positioning pin 4, and the pin holes 5 located on the lower plate surface of the second intermediate plate 3b and the lower plate surface of the third intermediate plate 2c are used to accommodate the upper end of the positioning pin 4. In this way, the positioning pin 4 can be arranged between the lowermost third intermediate plate 2c and the second intermediate plate 3b, and between any two adjacent third intermediate plates 2c, so as to realize the installation positioning between the second intermediate plate 3b and the plurality of third intermediate plates 2c during the assembly of the intermediate module 30. Similarly, when the intermediate module 30 is assembled by the module assembly base 400, the positioning pin 4 can be arranged between the work plane of the module assembly base 400 and the third intermediate plate 2c, so as to realize the installation positioning of the third intermediate plate 2c on the module assembly base 400.

[0077] The high-precision positioning pin 4 plays an indispensable positioning role in the assembly process of the electrolytic cell 100. Between adjacent bipolar plates, by arranging pin holes 5 at specific positions on the sealing surface of the bipolar plate, and by cleverly designing the positions of these pin holes 5, the sealing performance of the electrolytic cell 100 is not affected at all. With the help of high-precision pin hole gaps, accurate guidance is provided for the bipolar plates, enabling accurate arrangement and positioning between multiple bipolar plates, effectively avoiding problems such as deviation and misalignment of the bipolar plates during assembly. In addition, the positioning of the positioning pin 4 between adjacent modules is also crucial. By arranging corresponding pin holes 5 on the lower plate surface of the intermediate plate and using high-precision pin hole matching, accurate butt joint between the bipolar plate and the intermediate plate is achieved, thereby ensuring the accuracy and stability of the entire electrolytic cell structure from a microscopic perspective. The positioning structure designed for the module assembly base 400 can assist the module in being quickly and accurately positioned, reducing adjustment time.

[0078] Optionally, referring to Figure 2d , Figure 3a , Figure 3e and Figure 9b , in the present embodiment, the first bipolar plate 1a is provided with a bottom connecting structure for connecting with the first bottom chuck 210 of the first module clamping tool 200.

[0079] Specifically, the first module 10 takes the first polar plate 1a as the base and carries 30-70 first bipolar plates 2a which can be tightly arranged under the action of the clamping tool. During the integration of multiple modules, the clamping tool can provide a stable clamping force to the first module 10, so that the entire first module 10 becomes a relatively independent and structurally stable unit, facilitating subsequent movement and overall assembly. The first polar plate 1a is provided with a bottom connecting structure for connecting with the bottom clamp of the clamping tool. The bottom connecting structure on the first polar plate 1a can be a bottom threaded hole, a bottom pin hole, or a bottom clamping groove, etc.

[0080] During the assembly of the first module 10, a stable clamping force can be provided to the first module 10 by the first module clamping tool 200. Please refer to Figure 9b , the first module clamping tool 200 includes a first top hoop 220, a first bottom hoop 230, and a first pull rod 240. The first pull rod 240 is arranged between the first top hoop 220 and the first bottom hoop 230 and can be extended and retracted. The first pull rod 240 is arranged at intervals along the circumference of the first top hoop 220. The first top hoop 220 and the first bottom hoop 230 are each provided with a first loose buckle 250, so that the first top hoop 220 and the first bottom hoop 230 can be tightened and loosened. The first bottom hoop 230 is provided with a plurality of first bottom clamps 210 at intervals along the circumference of the first bottom hoop 230. Correspondingly, the bottom connecting structure on the first polar plate 1a is a bottom groove 6 for the first bottom clamps 210 of the first module clamping tool 200 to insert into. The outer circumferential surface of the first polar plate 1a is provided with a plurality of bottom grooves 6 at intervals along the circumference of the first polar plate 1a, and the bottom grooves 6 penetrate through the lower plate surface of the first polar plate 1a. When the first module clamping tool 200 is assembled onto the first module 10, the first top hoop 220 and the first bottom hoop 230 can respectively hoop the top and bottom of the first module 10, and the first bottom clamps 210 are clamped into the bottom grooves 6 of the first polar plate 1a. The first top hoop 220 abuts against the upper side of the upper end surface of the first module 10 (i.e. the upper plate surface of the uppermost first bipolar plate 2a). At this time, the first pull rod 240 is retracted, and the first module clamping tool 200 can provide a stable clamping force to the first module 10.

[0081] Optionally, please refer to Figure 4d , Figure 5a , Figure 5d and Figure 9b In this embodiment, the second intermediate plate 3b is arranged on the side of the third pre-determined number of third bipolar plates 2c close to the first module 10, and the second intermediate plate 3b is provided with a bottom connecting structure for connecting with the first bottom clamps 210 of the first module clamping tool 200.

[0082] The outer circumferential surface of the first intermediate plate 3a is provided with a bottom groove 6 for insertion of the first bottom chuck 210 of the first module clamping tool 200.

[0083] Specifically, the intermediate module 30 takes the second intermediate plate 3b as the basis, also carries 30-70 third bipolar plates 2c and is integrated by means of the clamping tool. The second intermediate plate 3b is provided with a bottom connection structure for connecting with the bottom chuck of the clamping tool, and the bottom connection structure on the second intermediate plate 3b can be a bottom threaded hole, a bottom pin hole or a bottom clamping groove, etc. For example, in the embodiment, the bottom connection structure on the second intermediate plate 3b is a bottom groove 6 for insertion of the first bottom chuck 210 of the first module clamping tool 200, and the outer circumferential surface of the second intermediate plate 3b is provided with a plurality of bottom grooves 6 spaced along the circumference of the second intermediate plate 3b, and the bottom grooves 6 penetrate the lower plate surface of the second intermediate plate 3b. During the assembly of the intermediate module 30, the intermediate module 30 can be provided with stable clamping force by the first module clamping tool 200. When the first module clamping tool 200 is assembled onto the intermediate module 30, the first top hoop 220 and the first bottom hoop 230 can clamp the top and bottom of the intermediate module 30 respectively, the first bottom chuck 210 is clamped into the bottom groove 6 of the second intermediate plate 3b, and the first top hoop 220 abuts the upper side of the upper end surface of the intermediate module 30 (i.e. the upper plate surface of the uppermost third bipolar plate 2c). At this time, the first pull rod 240 is retracted, and the first module clamping tool 200 can provide stable clamping force to the intermediate module 30.

[0084] Optionally, referring to Figure 6d , Figure 7a , Figure 7d , Figure 7e , Figure 7f and Figure 9c , in the embodiment, the first intermediate plate 3a is provided with a bottom connection structure for connecting with the second bottom chuck 310 of the second module clamping tool 300, and the second polar plate 1b is provided with a top connection structure for connecting with the top chuck 320 of the second module clamping tool 300.

[0085] Specifically, the second module 20 sets the second bipolar plate 2b on the first intermediate plate 3a and is capped with the second polar plate 1b, and is integrated by means of the clamping tool. The second polar plate 1b is not only the key part of current output, but also closely related to the stability of the overall structure. The first intermediate plate 3a is provided with a bottom connection structure for connecting with the bottom chuck of the clamping tool, and the bottom connection structure on the first intermediate plate 3a can be a bottom threaded hole, a bottom pin hole or a bottom clamping groove, etc. While the second polar plate 1b is provided with a top connection structure for connecting with the top chuck of the clamping tool, and the top connection structure on the second polar plate 1b can be a top threaded hole, a top pin hole or a top clamping groove, etc.

[0086] In the assembling process of the second module 20, the second module 20 can be provided with a stable clamping force by the second module clamping tool 300. Please refer to Figure 9c The second module clamping tool 300 comprises a second top hoop 330, a second bottom hoop 340, and a second pull rod 350, the second pull rod 350 is arranged between the second top hoop 330 and the second bottom hoop 340 in an extendable manner, and the second pull rod 350 is arranged in multiple along the circumference of the second top hoop 330, the second top hoop 330 and the second bottom hoop 340 are provided with a second elastic buckle 360, so that the second top hoop 330 and the second bottom hoop 340 can be tightened and loosened, and the second top hoop 330 is provided with a plurality of top clamps 320 along the circumference of the second top hoop 330, and the second bottom hoop 340 is provided with a plurality of second bottom clamps 310 along the circumference of the second bottom hoop 340. Correspondingly, the bottom connecting structure on the first intermediate plate 3a is a bottom groove 6 for the second bottom clamp 310 of the second module clamping tool 300 to insert, and the outer circumferential surface of the first intermediate plate 3a is provided with a plurality of bottom grooves 6 along the circumference of the first intermediate plate 3a, and the bottom grooves 6 penetrate the lower plate surface of the first pole plate 1a; the top connecting structure on the second pole plate 1b is a top groove 7 for the top clamp 320 of the second module clamping tool 300 to insert, and the outer circumferential surface of the second pole plate 1b is provided with a plurality of top grooves 7 along the circumference of the second pole plate 1b, and the top grooves 7 penetrate the upper plate surface of the second pole plate 1b. When the second module clamping tool 300 is assembled on the second module 20, the second top hoop 330 and the second bottom hoop 340 can clamp the top and bottom of the second module 20 respectively, the top clamp 320 is clamped into the top groove 7 of the second pole plate 1b, and the second bottom clamp 310 is clamped into the bottom groove 6 of the first intermediate plate 3a, at this time, the second pull rod 350 is retracted, and the second module clamping tool 300 can provide a stable clamping force to the second module 20.

[0087] The bottom connection structure on the first polar plate 1a, the first intermediate plate 3a, and the second intermediate plate 3b is taken as a bottom groove 6, and the top connection structure on the second polar plate 1b is taken as a top groove 7. The recesses (the bottom groove 6 or the top groove 7) are arranged at the periphery of the first polar plate 1a, the second polar plate 1b, the first intermediate plate 3a, and the second intermediate plate 3b, and serve as module integrated interfaces to provide reliable connection basis for accurate butt joint between different modules, so as to ensure that the modules can be combined tightly and form an integral whole. The module special clamping tool (the first module clamping tool 200 or the second module clamping tool 300) is designed scientifically and rationally and has multiple functions. The clamping integration of the modules is realized through the tensioning action of the screw rod (the first pull rod 240 or the second pull rod 350). In addition to the integration function, the module special clamping tool plays an indispensable role in the moving and hoisting links. The module special clamping tool is provided with a lifting point, which facilitates the hoisting and moving operations between different stations and greatly improves the flexibility and convenience of the assembly process.

[0088] Optionally, referring to Figure 1 In the embodiment, the connecting mechanism 40 includes a first end pressing plate 41, a second end pressing plate 42, and fastening screws 43. The first end pressing plate 41 is arranged on the side of the first module 10 close to the first polar plate 1a. The second end pressing plate 42 is arranged on the side of the second module 20 close to the second polar plate 1b. The two ends of the fastening screw 43 are connected to the first end pressing plate 41 and the second end pressing plate 42, respectively. The fastening screws 43 are arranged at intervals along the circumference of the electrolytic cell 100. The end of the fastening screw 43 close to the first end pressing plate 41 is located on the side of the first end pressing plate 41 away from the second end pressing plate 42, and the end of the fastening screw 43 close to the second end pressing plate 42 is located on the side of the second end pressing plate 42 away from the first end pressing plate 41. The fastening screw 43 is provided with a fastening nut 44.

[0089] Specifically, the first end pressing plate 41 is a negative end pressing plate, and the second end pressing plate 42 is a positive end pressing plate. The first end pressing plate 41 abuts against the lower side of the first module 10, and the second end pressing plate 42 abuts against the upper side of the second module 20. The fastening screws 43 are arranged between the first end pressing plate 41 and the second end pressing plate 42, and are arranged around the periphery of each module. The lower end of each fastening screw 43 passes through the first end pressing plate 41 downward and is provided with a fastening nut 44, and the upper end of each fastening screw 43 passes through the second end pressing plate 42 upward and is provided with a fastening nut 44. By tightening the fastening nuts 44 on the fastening screws 43, the first end pressing plate 41 and the second end pressing plate 42 can clamp the modules therebetween.

[0090] In the whole assembling link of the electrolytic cell 100, a strict and orderly process flow is followed, first, the first end pressing plate 41 is installed, which builds the starting frame for the whole electrolytic cell 100 assembly; then the first module 10, the intermediate module 30 and the second module 20 are installed in sequence, and the core structure of the electrolytic cell 100 is gradually built; finally, the second end pressing plate 42 is installed, and the fastening screw 43 is tightened, so that the whole electrolytic cell structure is fastened and stable. After completing these basic assembly steps, the subsequent electrolytic cell production process can be smoothly carried out.

[0091] Compared with the prior art, the electrolytic cell 100 has the following advantages: 1. The first end plate 1a, the first intermediate plate 3a and the second intermediate plate 3b are used as the support structure of the first module 10, the second module 20 and the intermediate module 30, and dozens or hundreds of bipolar plates can be stacked and assembled based on the support structure; 2. Multiple modules can be stacked and assembled at the same time, improving the assembly efficiency; 3. High-precision positioning pins 4 are used for positioning between adjacent two bipolar plates, and the positional deviation between adjacent two bipolar plates is controlled by multiple positioning pins 4; 4. Multiple modules are guided and assembled by multiple high-precision positioning pins 4, thereby completing the assembly of the whole electrolytic cell 100; 5. The positional deviation between adjacent two modules is controlled by high-precision positioning pins 4 between the modules, ensuring the overall assembly accuracy; 6. The electrolytic cell 100 can select vertical assembly or horizontal assembly of the modules according to the height and space of the factory building, reducing the requirement of the electrolytic cell 100 on the height of the factory building.

[0092] Correspondingly, another embodiment of the present application also provides a manufacturing method of an electrolytic cell, which can be used to manufacture the electrolytic cell provided in the above embodiment. The manufacturing method of the electrolytic cell provided in another embodiment of the present application will be described in detail below. The same or corresponding parts as the previous embodiment can refer to the corresponding description of the previous embodiment, which will not be described in detail below.

[0093] Please refer to Figure 8a and Figure 8b In this embodiment, the manufacturing method of the electrolytic cell includes the following steps S100 and S200.

[0094] Step S100: The first module 10 and the second module 20 are assembled respectively by using the first module clamping tool 200 and the second module clamping tool 300, and the first integrated body 50 and the second integrated body 60 are obtained.

[0095] Specifically, the first integrated body 50 is the first module 10 assembled with the first module clamping tool 200, so as to clamp the first module 10 by the first module clamping tool 200, and the second integrated body 60 is the second module 20 assembled with the second module clamping tool 300, so as to clamp the second module 20 by the second module clamping tool 300. The step S100 comprises: a step S110 of assembling the first module 10 by using the first module clamping tool 200 to obtain the first integrated body 50; and a step S130 of assembling the second module 20 by using the second module clamping tool 300 to obtain the second integrated body 60. When the electrolytic cell 100 further comprises the intermediate module 30, before the step S200, the manufacturing method of the electrolytic cell further comprises: a step S120 of assembling at least one intermediate module 30 by using the first module clamping tool 200 to obtain at least one intermediate integrated body 70, the intermediate integrated body 70 being the intermediate module 30 assembled with the first module clamping tool 200, so as to clamp the intermediate module 30 by the first module clamping tool 200.

[0096] Optionally, referring to Figures 2a to 2f In the embodiment, the step S110 comprises the following steps S111 to S116.

[0097] The step S111 is installing the positioning pin 4 at the pin hole 5 on the upper surface of the module assembly base 400.

[0098] Specifically, referring to Figure 9a The upper surface of the module assembly base 400 is provided with a working plane, and the upper surface of the module assembly base 400 is provided with the pin hole 5. The bottom of the module assembly base 400 is provided with the supporting leg 420, the supporting leg 420 is provided with the screw adjusting mechanism, and the supporting leg 420 is spaced apart along the circumference of the module assembly base 400. Thus, the flatness of the module assembly base 400 can be pre-adjusted by the supporting leg 420 before the step S111, so that the working plane of the module assembly base 400 reaches the module stack flatness limit. After adjusting the flatness of the module assembly base 400, the positioning pin 4 is installed at the pin hole 5 on the upper surface of the module assembly base 400. The supporting structure (i.e. the supporting leg 420) of the module assembly base 400 adopts a threaded rod design. Through the adjusting function of the threaded rod, the flatness of the module assembly base 400 can be finely adjusted, and the levelness of the module assembly reference plane can be accurately adjusted to a specified range, laying a foundation for the accurate assembly of subsequent modules. The pin holes 5 are arranged on the upper surface of the module assembly base 400, which can realize accurate positioning and cooperation with the intermediate plate and the first polar plate la through the positioning pin 4, further improving the accuracy of the entire assembly structure.

[0099] Step S112: Install the positioning pin 4 at the pin hole 5 on the upper plate surface of the first polar plate 1a, and guide the first polar plate 1a to be installed on the module assembly base 400 through the positioning pin 4 on the module assembly base 400.

[0100] Specifically, after installing the positioning pin 4 at the pin hole 5 on the upper plate surface of the first polar plate 1a, and aligning the pin hole 5 on the lower plate surface of the first polar plate 1a with the positioning pin 4 on the module assembly base 400, the first polar plate 1a is guided to be installed on the module assembly base 400 through the positioning pin 4 on the module assembly base 400.

[0101] Step S113: Install the positioning pin 4 at the pin hole 5 on the upper plate surface of the first pre-set number of first bipolar plates 2a, and guide the first pre-set number of first bipolar plates 2a to be installed on the first polar plate 1a in turn through the positioning pin 4, to obtain the first module 10.

[0102] Specifically, after installing the positioning pin 4 at the pin hole 5 on the upper plate surface of the first layer of first bipolar plates 2a, and aligning the pin hole 5 on the lower plate surface of the first layer of first bipolar plates 2a with the positioning pin 4 on the first polar plate 1a, the first layer of first bipolar plates 2a is guided to be installed on the first polar plate 1a through the positioning pin 4 on the first polar plate 1a.

[0103] The positioning pin 4 is installed at the pin hole 5 on the upper plate surface of the second layer of first bipolar plates 2a, and the pin hole 5 on the lower plate surface of the second layer of first bipolar plates 2a is aligned with the positioning pin 4 on the first layer of first bipolar plates 2a, and the second layer of first bipolar plates 2a is guided to be installed on the first layer of first bipolar plates 2a through the positioning pin 4 on the first layer of first bipolar plates 2a. Repeat the above operation until the first bipolar plates 2a are stacked to the specified number of layers, that is, the first module 10 can be obtained.

[0104] Step S114: Insert the first bottom clamp 210 of the first module clamping tool 200 into the bottom groove 6 of the first polar plate 1a, and press the first top clamp 220 of the first module clamping tool 200 on the edge of the upper end surface of the first module 10, and then tighten the first module clamping tool 200.

[0105] Specifically, when the first module clamping tool 200 is assembled on the first module 10, the first top clamp 220 and the first bottom clamp 230 can clamp the top and bottom of the first module 10 respectively, the first bottom clamp 210 is clamped into the bottom groove 6 of the first polar plate 1a, and the first top clamp 220 abuts the upper side of the upper end surface of the first module 10 (i.e. the upper plate surface of the uppermost first bipolar plate 2a), at this time, the first module clamping tool 200 can provide a stable clamping force to the first module 10.

[0106] Step S115: The module compression tool 500 is installed at the interface 410 of the module assembly base 400, and the upper end surface of the first module 10 is pressed down by the module compression tool 500 until the pressing force of the module compression tool 500 reaches the first preset pressure value.

[0107] Specifically, in the module assembly process, the pre-compression of the module by the compression tool is a very critical step. After the compression is completed, the clamping tool is installed in time to long-term maintain the compression state of the module. The control of the compression force is accurately calculated and verified by a large number of practices, and the range is set to 2-10t (i.e. the first preset pressure value is 2-10t), and the appropriate compression force can ensure the close fit between the bipolar plates. Please refer to Figure 9a , the upper surface of the module assembly base 400 is provided with an interface 410, which serves as a counterforce support when the compression tool is in operation, providing a reliable force point for effective transmission and uniform distribution of the compression force, ensuring that the bipolar plates inside the module can be closely fitted.

[0108] Please refer to Figure 9d , the module compression tool 500 includes a pressing plate 520, a support frame 540, and a driving rod 550. The driving rod 550 is movably arranged at the top of the support frame 540, and the pressing plate 520 is arranged at the lower end of the driving rod 550. The upper end of the driving rod 550 is used to connect a driving device (not shown in the figure) to drive the driving rod 550 and the pressing plate 520 to move up and down together through the driving device. The top of the support frame 540 is provided with an eye 530, and the bottom of the support frame 540 is provided with a flange plate 510.

[0109] The module compression tool 500 is installed at the interface 410 of the module assembly base 400 through the eye 530, and the flange plate 510 is fastened to the interface 410. The module compression tool 500 is driven by the driving device to make the pressing plate 520 fit with the outer circle sealing surface of the upper end surface of the first module 10. The pressing plate 520 continues to exert a downward force on the first module 10 until the first preset pressure value is reached, so as to eliminate the initial gap between the first bipolar plates 2a in the first module 10.

[0110] The module pressing tool 500 can have multiple driving forms for selection. The module pressing tool 500 can be driven by a hydraulic cylinder, which can provide strong and stable pressing force. The module pressing tool 500 can also be driven by a lead screw, a pneumatic device or an electric device. Thus, the module pressing tool 500 can be flexibly selected according to different assembly requirements and working conditions. The pressing plate 520 can have a ring-shaped design. The ring-shaped design can uniformly transmit the pressure through the topmost polar plate (the first polar plate 2a, the third polar plate 2c or the second polar plate 1b) during work, so as to ensure uniform pressure distribution in the entire module and avoid assembly quality problems caused by excessive or insufficient local pressure. The support structure can be arranged on the module assembly base 400 to fully utilize the stability and counterforce supporting capacity of the module assembly base 400. The support structure can also be arranged on the ground or other structures to reasonably arrange the counterforce points of the module pressing tool 500 according to actual assembly layout and space conditions, so as to ensure smooth pressing process.

[0111] Step S116: The first module clamping tool 200 is tightened again, and the module pressing tool 500 is removed, to obtain the first integrated body 50.

[0112] Specifically, first, the first module clamping tool 200 assembled on the first module 10 is tightened again. The first top hoop 220 and the first bottom hoop 230 of the first module clamping tool 200 are tightened, and the first pull rod 240 is repeatedly tightened. Then, the pressure of the module pressing tool 500 is released, so that the internal force of the first module 10 is transferred to the first module clamping tool 200. After that, the module pressing tool 500 is removed. Thus, the assembly of the first module 10 is completed, and the integrated body of the first module 10 and the first module clamping tool 200, i.e., the first integrated body 50, is obtained.

[0113] Optionally, referring to Figures 4a to 4f In the embodiment, step S120 includes the following steps S121 to S126.

[0114] Step S121: A positioning pin 4 is installed at a pin hole 5 on the upper surface of the module assembly base 400.

[0115] Specifically, after the flatness of the module assembly base 400 is adjusted by the support feet 420, the positioning pin 4 is installed at the pin hole 5 on the upper surface of the module assembly base 400.

[0116] Step S122: A positioning pin 4 is installed at a pin hole 5 on the upper surface of the second intermediate plate 3b, and the second intermediate plate 3b is installed on the module assembly base 400 by the positioning pin 4 on the module assembly base 400.

[0117] Specifically, the positioning pin 4 is installed at the pin hole 5 of the upper plate surface of the second intermediate plate 3b, and the pin hole 5 of the lower plate surface of the second intermediate plate 3b is aligned with the positioning pin 4 on the module assembly base 400, and then the second intermediate plate 3b is guided and installed on the module assembly base 400 through the positioning pin 4.

[0118] Step S123: Install the positioning pin 4 at the pin hole 5 of the upper plate surface of the third bipolar plate 2c of the third preset number, and stack and install the third bipolar plate 2c of the third preset number on the second intermediate plate 3b in sequence through the positioning pin 4, to obtain the intermediate module 30.

[0119] Specifically, the positioning pin 4 is installed at the pin hole 5 of the upper plate surface of the first layer of third bipolar plate 2c, and the pin hole 5 of the lower plate surface of the first layer of third bipolar plate 2c is aligned with the positioning pin 4 on the second intermediate plate 3b, and then the first layer of third bipolar plate 2c is guided and installed on the second intermediate plate 3b through the positioning pin 4 on the second intermediate plate 3b.

[0120] The positioning pin 4 is installed at the pin hole 5 of the upper plate surface of the second layer of third bipolar plate 2c, and the pin hole 5 of the lower plate surface of the second layer of third bipolar plate 2c is aligned with the positioning pin 4 on the first layer of third bipolar plate 2c, and then the second layer of third bipolar plate 2c is guided and installed on the first layer of third bipolar plate 2c through the positioning pin 4 on the first layer of third bipolar plate 2c. Repeat the above operation until the third bipolar plate 2c is stacked to the specified number of layers, that is, the intermediate module 30 is obtained.

[0121] Step S124: Insert the first bottom clamp 210 of the first module clamping tool 200 into the bottom groove 6 of the second intermediate plate 3b, and press the first top clamp 220 of the first module clamping tool 200 on the edge of the upper end surface of the intermediate module 30, and then tighten the first module clamping tool 200.

[0122] Specifically, when the first module clamping tool 200 is assembled to the intermediate module 30, the first top clamp 220 and the first bottom clamp 230 can clamp the top and bottom of the intermediate module 30 respectively, the first bottom clamp 210 is clamped into the bottom groove 6 of the second intermediate plate 3b, and the first top clamp 220 abuts the upper side of the upper end surface of the intermediate module 30 (i.e. the upper plate surface of the uppermost third bipolar plate 2c), at this time, the first pull rod 240 is retracted, and the first module clamping tool 200 can provide a stable clamping force to the intermediate module 30.

[0123] Step S125: Install the module pressing tool 500 at the interface 410 of the module assembly base 400, and press the upper end surface of the intermediate module 30 through the module pressing tool 500 until the pressing force of the module pressing tool 500 reaches the third preset pressure value.

[0124] Specifically, the module pressing tool 500 is installed to the interface 410 of the module assembly base 400 through the lug 530, and the flange plate 510 is fastened to the interface 410. The module pressing tool 500 is driven by the driving device, and the pressing plate 520 is attached to the upper end face outer circle sealing surface of the intermediate module 30. The intermediate module 30 continues to be pressed downward by the pressing plate 520 until a third preset pressure value (the third preset pressure value can be 2-10t) is reached, so as to eliminate the initial gap between the third bipolar plates 2c in the intermediate module 30.

[0125] Step S126: The first module clamping tool 200 is tightened again, and the module pressing tool 500 is removed, and the intermediate integrated body 70 is obtained.

[0126] Specifically, first, the first module clamping tool 200 assembled on the intermediate module 30 is tightened again, the first top hoop 220 and the first bottom hoop 230 of the first module clamping tool 200 are tightened, and the first pull rod 240 is repeatedly tightened. Then, the pressure of the module pressing tool 500 is released, and after the internal force of the intermediate module 30 is transferred to the first module clamping tool 200, the module pressing tool 500 is removed, so that the assembly of the intermediate module 30 is completed, and the integrated body of the intermediate module 30-the first module clamping tool 200, i.e. the intermediate integrated body 70, is obtained.

[0127] Optionally, referring to Figures 6a to 6f In this embodiment, step S130 includes the following steps S131 to S137.

[0128] Step S131: Install the positioning pin 4 at the pin hole 5 on the upper surface of the module assembly base 400.

[0129] Specifically, after the flatness of the module assembly base 400 is adjusted by the supporting feet 420, the positioning pin 4 is installed at the pin hole 5 on the upper surface of the module assembly base 400.

[0130] Step S132: Install the positioning pin 4 at the pin hole 5 on the upper plate surface of the first intermediate plate 3a, and guide the first intermediate plate 3a to be installed on the module assembly base 400 through the positioning pin 4 on the module assembly base 400.

[0131] Specifically, the positioning pin 4 is installed at the pin hole 5 on the upper plate surface of the first intermediate plate 3a, and after the pin hole 5 on the lower plate surface of the first intermediate plate 3a is aligned with the positioning pin 4 on the module assembly base 400, the first intermediate plate 3a is guided to be installed on the module assembly base 400 through the positioning pin 4 on the module assembly base 400.

[0132] Step S133: Install the positioning pin 4 at the pin hole 5 on the upper plate surface of the second bipolar plate 2b of the second preset number, and guide the second bipolar plate 2b of the second preset number to be stacked and installed on the first intermediate plate 3a through the positioning pin 4.

[0133] Specifically, the positioning pin 4 is installed at the pin hole 5 on the upper plate surface of the first layer of second bipolar plates 2b, and after the pin hole 5 on the lower plate surface of the first layer of second bipolar plates 2b is aligned with the positioning pin 4 on the first intermediate plate 3a, the first layer of second bipolar plates 2b is guided and installed on the first intermediate plate 3a through the positioning pin 4 on the first intermediate plate 3a.

[0134] The positioning pin 4 is installed at the pin hole 5 on the upper plate surface of the second layer of second bipolar plates 2b, and after the pin hole 5 on the lower plate surface of the second layer of second bipolar plates 2b is aligned with the positioning pin 4 on the first layer of second bipolar plates 2b, the second layer of second bipolar plates 2b is guided and installed on the first layer of second bipolar plates 2b through the positioning pin 4 on the first layer of second bipolar plates 2b. Repeat the above operation until the second bipolar plate 2b is stacked to the specified number of layers.

[0135] Step S134: Install the second polar plate 1b on the uppermost layer of second bipolar plates 2b through the positioning pin 4 on the uppermost layer of second bipolar plates 2b to obtain the second module 20.

[0136] Specifically, the pin hole 5 on the lower plate surface of the second polar plate 1b is aligned with the positioning pin 4 on the uppermost layer of second bipolar plates 2b, and then the second polar plate 1b is guided and installed on the second bipolar plate 2b through the positioning pin 4 on the uppermost layer of second bipolar plates 2b to obtain the second module 20.

[0137] Step S135: After the second bottom clamp 310 and the top clamp 320 of the second module clamping tool 300 are respectively inserted into the bottom groove 6 of the first intermediate plate 3a and the top groove 7 of the second polar plate 1b, the second module clamping tool 300 is tightened.

[0138] Specifically, when the second module clamping tool 300 is assembled on the second module 20, the second top clamp 330 and the second bottom clamp 340 can respectively clamp the top and bottom of the second module 20, the top clamp 320 is clamped into the top groove 7 of the second polar plate 1b, and the second bottom clamp 310 is clamped into the bottom groove 6 of the first intermediate plate 3a. At this time, the second pull rod 350 is retracted, and the second module clamping tool 300 can provide stable clamping force to the second module 20.

[0139] Step S136: Install the module pressing tool 500 at the interface 410 of the module assembly base 400, and press the upper end surface of the second module 20 through the module pressing tool 500 until the pressing force of the module pressing tool 500 reaches the second preset pressure value.

[0140] Specifically, the module pressing tool 500 is installed at the interface 410 of the module assembly base 400 through the lifting lug 530, and the flange plate 510 is fastened to the interface 410. The module pressing tool 500 is driven by the driving device, and the pressing plate 520 is attached to the upper end face outer circle sealing surface of the second module 20. The second module 20 continues to be subjected to the downward force of the pressing plate 520 until a second preset pressure value (which can be 2-10 t) is reached, so as to eliminate the initial gap between the second bipolar plates 2b in the second module 20.

[0141] Step S137: The second module clamping tool 300 is tightened again, and the module pressing tool 500 is removed, to obtain a second integrated body 60.

[0142] Specifically, first, the second module clamping tool 300 assembled on the second module 20 is tightened again, the second top hoop 330 and the second bottom hoop 340 of the second module clamping tool 300 are tightened, and the second pull rod 350 is repeatedly tightened. Then, the pressure of the module pressing tool 500 is released, and after the internal force of the second module 20 is transferred to the second module clamping tool 300, the module pressing tool 500 is removed, so that the assembly of the second module 20 is completed, and the integrated body of the second module 20-second module clamping tool 300, i.e., the second integrated body 60, is obtained.

[0143] The module pressing tool 500 focuses on solving the gap problem that may exist between the bipolar plates in the module. The module pressing tool 500 uniformly applies pressure to make the bipolar plates tightly attached, and also enhances the structural stability and sealing performance of the entire electrolytic cell 100, thereby improving the performance and reliability of the entire electrolytic cell system, and has significant advantages and broad application prospects in the high-efficiency and high-precision assembly of the high-pressure alkaline electrolytic cell.

[0144] Step S200: The first integrated body 50 and the second integrated body 60 are stacked and assembled along a preset direction, and the first module clamping tool 200 and the second module clamping tool 300 are removed, to obtain the electrolytic cell 100.

[0145] Specifically, the preset direction can be a vertical direction or a horizontal direction, etc. When the electrolytic cell 100 further includes an intermediate integrated body 70, step S200 includes: stacking and assembling the first integrated body 50, at least one intermediate integrated body 70, and the second integrated body 60 along a preset direction, and removing the first module clamping tool 200 and the second module clamping tool 300, to obtain the electrolytic cell 100.

[0146] Optionally, please refer to Figure 8a and Figure 8bIn the embodiment, the step S200 comprises: stacking the first integrated body 50, the intermediate integrated bodies 70, and the second integrated body 60 along the preset direction and assembling with the connecting mechanism 40, and removing the first module clamping tool 200 and the second module clamping tool 300 to obtain the electrolytic cell 100.

[0147] Optionally, referring to Figure 8a and Figure 8b In the embodiment, the step S200 comprises the following steps S210 to S260.

[0148] The step S210 comprises: installing the first end pressing plate 41 on the stacking base 600 along the preset direction.

[0149] The step S220 comprises: stacking and installing the first integrated body 50 on the first end pressing plate 41 along the preset direction.

[0150] The step S230 comprises: stacking and installing the intermediate integrated bodies 70 on the first integrated body 50 along the preset direction.

[0151] The step S240 comprises: stacking and installing the second integrated body 60 on the intermediate integrated body 70 farthest from the first integrated body 50 along the preset direction.

[0152] The step S250 comprises: stacking and installing the second end pressing plate 42 on the second integrated body 60 along the preset direction.

[0153] The step S260 comprises: installing the fastening screw 43 between the first end pressing plate 41 and the second end pressing plate 42, and removing the first module clamping tool 200 and the second module clamping tool 300 to obtain the electrolytic cell 100.

[0154] Specifically, first, the first end pressing plate 41, the first integrated body 50, the intermediate integrated bodies 70, and the second integrated body 60 are installed on the stacking base 600 along the vertical direction or the horizontal direction; then, the first module clamping tool 200 and the second module clamping tool 300 on the first integrated body 50, the intermediate integrated bodies 70, and the second integrated body 60 are removed, and the fastening screw 43 is installed, so as to obtain the electrolytic cell 100.

[0155] The application first optimizes the assembly process of the electrolytic cell 100, carefully combs all parts of the electrolytic cell 100, and re-plans the installation sequence according to its function and installation logic. For example, some parts with strong correlation and high mutual cooperation requirements are grouped, the precise assembly of the subassembly is completed on the module assembly base 400 first, a relatively independent and stable module is formed, and then multiple modules are assembled. In this way, the adjustment work on site can be greatly reduced when the whole is installed, and the module can be quickly installed in place according to the predetermined sequence, thereby improving the assembly efficiency. In terms of structural design, innovative design is made for the link that is prone to precision problems in traditional assembly, for example, for the positioning and connection between the bipolar plates, a unique structure of positioning pin 4 and pin hole 5 is designed. The positioning pin 4 adopts a high-precision machining process, and its diameter tolerance is controlled within a very small range. The size and shape of the pin hole 5 are also optimized and designed, and the two have just the right fit. During assembly, the positioning pin 4 can be easily inserted into the pin hole 5, and the cooperation can achieve precise positioning of the bipolar plates, effectively avoiding the misalignment of the bipolar plates caused by the difference in bolt tightening sequence and force in traditional assembly, greatly improving the assembly precision.

[0156] Please refer to Figure 10 , the assembly process of the electrolytic cell 100 can be as follows:

[0157] First step: module assembly

[0158] Step 1.1, install the bottom plate

[0159] Specifically, the bottom plate is the first polar plate 1a, the second polar plate 1b, the first intermediate plate 3a or the second intermediate plate 3b, and the bottom plate is installed on the module assembly base 400.

[0160] Step 1.2, install the internal components of the bottom plate

[0161] Step 1.3, install the seal and pin

[0162] Specifically, the seal is usually a hard seal, and the pin is a positioning pin 4. The pin is usually a polymer pin.

[0163] Step 1.4, install the bipolar plate and internal components

[0164] Specifically, the bipolar plate is the first bipolar plate 2a, the second bipolar plate 2b or the third bipolar plate 2c.

[0165] Step 1.5, use the module clamping tool and the module pressing tool

[0166] Specifically, the module clamping tool is the first module clamping tool 200 or the second module clamping tool 300, and the module clamping tool and the module pressing tool 500 are used to obtain the first integrated body 50, the second integrated body 60, and the two intermediate integrated bodies 70.

[0167] Step 2: Stacking

[0168] Step 2.1, Install first end plate

[0169] Specifically, the first end plate 41 is installed on the stacking base 600.

[0170] Step 2.2, Install first integrated body

[0171] Specifically, the first integrated body 50 is stacked on the first end plate 41.

[0172] Step 2.3, Install intermediate integrated body

[0173] Specifically, the first intermediate integrated body 70 is stacked on the first integrated body 50.

[0174] Step 2.4, Install intermediate integrated body

[0175] Specifically, the second intermediate integrated body 70 is stacked on the first intermediate integrated body 70.

[0176] Step 2.5, Install second integrated body

[0177] Specifically, the second integrated body 60 is stacked on the second intermediate integrated body 70.

[0178] Step 2.6, Remove first module clamping tool

[0179] Step 3: Pre-tightening + flipping

[0180] Step 3.1, Install fastening screw

[0181] Specifically, 18 fastening screws 43 are installed.

[0182] Step 3.2, Install second end plate

[0183] Step 3.3, Install pre-tightening pull rod

[0184] Specifically, 4 pre-tightening pull rods (not shown in the figure) are installed.

[0185] Step 3.4, Pre-tightening pull rod fastening

[0186] Step 3.5, Remove second module clamping tool

[0187] Step 3.6, Install fastening piece

[0188] Specifically, the fastening piece includes fastening nuts 44, gaskets, washers, etc.

[0189] Step 3.7, Fastening screw fastening

[0190] Step 3.8, remove pre-tensioning rods

[0191] Step 3.9, flip and mount to base

[0192] Specifically, the assembled electrolytic cell 100 is flipped and mounted to the base for testing of the electrolytic cell 100.

[0193] Fourth step: temperature cycling + tightening

[0194] Step 4.1, on-site cycling

[0195] Specifically, if not passed, step 4.2 is performed; if passed, step 5.1 is performed.

[0196] Step 4.2, connect piping from hot station

[0197] Step 4.3, stack heating and cooling

[0198] Step 4.4, tighten screw rod tightening

[0199] Step 4.5, reach target

[0200] Specifically, if reached, step 4.6 is performed; if not reached, step 4.3 is returned to perform.

[0201] Step 4.6, disconnect piping

[0202] Fifth step: water pressure test + transportation

[0203] Step 5.1, connect piping from water pressure test station

[0204] Step 5.2, water pressure test

[0205] Step 5.3, water emptying to 1 / 3

[0206] Step 5.4, install auxiliary piping

[0207] Step 5.5, pre-delivery inspection

[0208] Step 5.6, packaging

[0209] Step 5.7, transportation

[0210] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made under the inventive concept of the present application, using the contents of the present application specification and drawings, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An electrolytic cell, characterized in that: include: a first module, the first module comprising first polar plates and a first preset number of first bipolar plates stacked in sequence; The second module is stacked on the side of the first module away from the first electrode plate, and the second module includes a first intermediate plate, a second preset number of second bipolar plates, and a second electrode plate stacked in sequence, the first intermediate plate is located on the side of the second preset number of second bipolar plates close to the first module, and the second electrode plate is located on the side of the second preset number of second bipolar plates away from the first module, and one of the second electrode plate and the first electrode plate is a positive electrode plate, and the other is a negative electrode plate.

2. The electrolytic cell according to claim 1, characterized in that The electrolytic cell further includes an intermediate module, wherein the intermediate module is stacked between the first module and the second module; The intermediate module includes stacked second intermediate plates and a third preset number of third bipolar plates, and the second intermediate plates are arranged on a side of the third preset number of third bipolar plates close to the first module and / or a side close to the second module.

3. The electrolytic cell according to claim 2, characterized in that The electrolytic cell further comprises a positioning pin, wherein: The positioning pin is provided between the first bipolar plate closest to the first electrode plate and the first electrode plate, and between any two adjacent first bipolar plates, and pin holes for accommodating one end of the positioning pin are provided on both plate surfaces of the first electrode plate and both plate surfaces of the first bipolar plate; and / or, The positioning pin is provided between the second bipolar plate closest to the first intermediate plate and the first intermediate plate, between any two adjacent second bipolar plates, and between the second bipolar plate closest to the second electrode plate and the second electrode plate, and pin holes for accommodating one end of the positioning pin are provided on both plate surfaces of the first intermediate plate, both plate surfaces of the second bipolar plate, and the plate surface of the second electrode plate close to the second bipolar plate; and / or, The positioning pin is provided between the third bipolar plate closest to the second intermediate plate and the second intermediate plate, and between any two adjacent third bipolar plates, and pin holes for accommodating one end of the positioning pin are provided on the two plate surfaces of the second intermediate plate and the two plate surfaces of the third bipolar plates.

4. The electrolytic cell according to claim 2, characterized in that The second intermediate plate is arranged on a side of the third preset number of third bipolar plates close to the first module, and a bottom connecting structure for connecting to the first bottom clamp of the first module clamping tool is provided on the second intermediate plate.

5. The electrolytic cell according to claim 1, characterized in that The first electrode plate is provided with a bottom connecting structure for connecting to a first bottom clamp of a first module clamping tool.

6. The electrolytic cell according to claim 1, characterized in that The first intermediate plate is provided with a bottom connection structure for connecting to a second bottom clamp of a second module clamping tool, and the second plate is provided with a top connection structure for connecting to a top clamp of a second module clamping tool.

7. The electrolytic cell according to claim 6, characterized in that The top connection structure is a top groove for the top clamp of the second module clamping tool to be inserted into.

8. The electrolytic cell according to any one of claims 4 to 6, characterized in that: The bottom connection structure is a bottom groove for the first bottom clamp of the first module clamping tool or the second bottom clamp of the second module clamping tool to be inserted.

9. A method for manufacturing an electrolytic cell, characterized in that: include: Using a first module clamping fixture and a second module clamping fixture to assemble the first module and the second module respectively to obtain a first assembly and a second assembly, wherein the first assembly is the first module assembled with the first module clamping fixture, so that the first module is clamped by the first module clamping fixture, and the second assembly is the second module assembled with the second module clamping fixture, so that the second module is clamped by the second module clamping fixture; The first assembly and the second assembly are stacked and assembled along a preset direction, and the first module clamping fixture and the second module clamping fixture are removed to obtain an electrolytic cell, wherein the preset direction is a vertical direction or a horizontal direction.

10. The method for manufacturing an electrolytic cell according to claim 9, wherein: Before stacking and assembling the first assembly and the second assembly along a preset direction and removing the first module clamping fixture and the second module clamping fixture to obtain the electrolytic cell, the method further includes: Assembling at least one intermediate module using a first module clamping fixture to obtain at least one intermediate integrated body, wherein the intermediate integrated body is the intermediate module assembled with the first module clamping fixture, so as to clamp the intermediate module by the first module clamping fixture; The first assembly and the second assembly are stacked and assembled along a preset direction, and the first module clamping tool and the second module clamping tool are removed to obtain an electrolytic cell, including: the first assembly, at least one intermediate assembly, and the second assembly are stacked and assembled along a preset direction, and the first module clamping tool and the second module clamping tool are removed to obtain an electrolytic cell.

11. The method for manufacturing an electrolytic cell according to claim 10, wherein: The method of assembling at least one intermediate module using the first module clamping fixture to obtain at least one intermediate integrated body comprises: Installing positioning pins at the pin holes on the upper surface of the module assembly base; Installing positioning pins at the pin holes on the upper plate surface of the second intermediate plate, and installing the second intermediate plate on the module assembly base through the positioning pin guide on the module assembly base; Installing locating pins at the pin holes on the upper plate surfaces of a third preset number of third bipolar plates, and stacking and installing the third preset number of third bipolar plates sequentially on the second intermediate plate guided by the locating pins to obtain an intermediate module; Insert the first bottom clamp of the first module clamping tool into the bottom groove of the second middle plate, press the first top clamp of the first module clamping tool against the edge of the upper end surface of the middle module, and then tighten the first module clamping tool; Installing a module pressing tool to the interface of the module assembly base, and pressing down the upper end surface of the middle module by the module pressing tool until the downward force of the module pressing tool reaches a third preset pressure value; Tighten the first module clamping fixture again, and remove the module pressing fixture to obtain the intermediate integrated body.

12. The method for manufacturing an electrolytic cell according to claim 9, wherein: The method of using the first module clamping fixture and the second module clamping fixture to respectively assemble the first module and the second module to obtain the first integrated body and the second integrated body comprises: Installing positioning pins at the pin holes on the upper surface of the module assembly base; Installing a positioning pin at the pin hole on the upper plate surface of the first electrode plate, and guiding the first electrode plate to be installed on the module assembly base through the positioning pin on the module assembly base; Installing locating pins at the pin holes on the upper plate surfaces of a first preset number of first bipolar plates, and stacking and installing the first preset number of first bipolar plates on the first plate in sequence through the guidance of the locating pins to obtain a first module; Inserting the first bottom clamp of the first module clamping tool into the bottom groove of the first electrode plate, pressing the first top clamp of the first module clamping tool against the edge of the upper end surface of the first module, and then tightening the first module clamping tool; Installing a module pressing tool to the interface of the module assembly base, and pressing down the upper end surface of the first module by the module pressing tool until the downward force of the module pressing tool reaches a first preset pressure value; The first module clamping fixture is tightened again, and the module pressing fixture is removed to obtain a first integrated body.

13. The method for manufacturing an electrolytic cell according to claim 9, wherein: The method of using the first module clamping fixture and the second module clamping fixture to respectively assemble the first module and the second module to obtain the first integrated body and the second integrated body comprises: Installing positioning pins at the pin holes on the upper surface of the module assembly base; Installing positioning pins at the pin holes on the upper plate surface of the first intermediate plate, and installing the first intermediate plate on the module assembly base through the positioning pin guides on the module assembly base; Installing locating pins at the pin holes on the upper plate surfaces of a second preset number of second bipolar plates, and stacking and installing the second preset number of second bipolar plates sequentially on the first intermediate plate guided by the locating pins; Installing the second electrode plate onto the uppermost second bipolar plate by guiding it with the positioning pins on the uppermost second bipolar plate to obtain a second module; Inserting the second bottom clamp and the top clamp of the second module clamping tool into the bottom groove of the first intermediate plate and the top groove of the second electrode plate respectively, and tightening the second module clamping tool; Installing a module pressing tool to the interface of the module assembly base, and pressing down the upper end surface of the second module by the module pressing tool until the downward force of the module pressing tool reaches a second preset pressure value; The second module clamping fixture is tightened again, and the module pressing fixture is removed to obtain a second integrated body.

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