Multi-electrode module device and assembling method

Abstract

The invention discloses a multi-electrode module device and an assembling method. The multi-electrode module device mainly comprises electrode modules and an electrolytic bath body, the electrode module is mounted in the electrolytic bath body; the electrode module comprises a plurality of negative and positive electrodes which are alternately arranged in parallel, the homopolar electrodes are connected and fixed through conductive connecting mechanisms in a penetrating manner, and conductive tubes are arranged between the homopolar electrodes and sleeve the conductive connecting mechanisms; the conductive tube is sleeved with an isolation fixing piece. One end of each electrode achieves conductive connection between the same electrodes through a conductive connection mechanism, and the other end of each electrode achieves insulation fixation through an isolation fixing piece. According to the multi-electrode module device and the assembling method, the stability and the assembling efficiency of electrode connection can be effectively improved, meanwhile, the contact resistance is reduced, flexible adjustment of the number of the electrodes is achieved through modular design, and the adaptability of the multi-electrode module device is greatly improved. In addition, it is ensured that the device can select an immersion type or over-current type electrolytic cell body according to specific requirements in different application scenarios.

Description

Technical Field

[0001] This invention relates to the field of electrochemical technology, and more specifically to a multi-electrode module device and its assembly method. Background Technology

[0002] In the field of electrochemical technology, electrode assembly is a delicate and complex process that directly affects the performance and lifespan of electrochemical devices. Traditional electrode assembly methods generally suffer from limitations such as insufficient connection stability, high contact resistance, and low assembly efficiency, making it difficult to meet the stringent requirements of modern electrochemical systems for high performance and high stability, especially in applications requiring frequent adjustments to the number of electrodes. To improve the efficiency and precision of electrode assembly, modern technology is constantly introducing new materials and processes. By optimizing contact methods and connection structures, resistance can be significantly reduced while enhancing overall stability and durability. Furthermore, the application of modular design makes electrode units easier to maintain and replace, thereby significantly reducing downtime and improving production efficiency. In practical operation, the appropriate selection of assembly sequence and tools can also effectively avoid errors caused by human factors, ensuring the reliability and consistency of device operation.

[0003] Therefore, it is particularly important to design a multi-electrode module device that can simplify the assembly process and improve stability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention aims to provide a multi-electrode module device and its assembly method. By optimizing the electrode arrangement and connection structure, the operational difficulty during assembly can be effectively reduced, while simultaneously improving the overall reliability and adaptability of the device. Furthermore, the modular design concept not only facilitates maintenance and replacement but also allows for flexible adjustment of the number and layout of electrodes according to actual needs, thereby meeting the requirements of different application scenarios. This innovative design approach provides new possibilities for the development of electrochemical technology and lays a solid foundation for research and applications in related fields.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a multi-electrode module device, mainly comprising an electrode module and an electrolytic cell; the electrode module is installed in the electrolytic cell; the electrode module includes a plurality of alternating parallel cathode and anode electrodes, the electrodes of the same polarity are connected and fixed through a conductive connection mechanism, a conductive tube is provided between the electrodes of the same polarity, the conductive tube is sleeved outside the conductive connection mechanism; an isolation fixing member is sleeved outside the conductive tube; one end of each electrode is conductively connected to the electrodes of the same polarity through the conductive connection mechanism, and the other end is insulated and fixed through the isolation fixing member.

[0006] Furthermore, the isolation fastener has several slots, and the electrode has an edge notch at one end that is installed with the isolation fastener; the edge notch of the electrode is inserted into the slot to achieve assembly.

[0007] Furthermore, the conductive connection mechanism includes mutually matched conductive metal bolts and conductive nuts. A circular hole is provided at one end of the electrode that is installed with the conductive metal bolt. The conductive tube is sleeved in the circular hole of each electrode of the same polarity. The conductive metal bolt passes through the circular hole of each electrode of the same polarity and is fixed by conductive connection through the conductive nut.

[0008] Furthermore, the electrolytic cell includes two structures: an immersion cell and a flow-through cell.

[0009] As one embodiment of the present invention, the immersion tank includes a bottom end cap and an immersion shell. The electrode module is fixed to the immersion tank by a fixing nut. The bottom end cap and the immersion shell are fixed by a buckle at the bottom. The bottom end cap and the immersion shell of the immersion tank are left open to allow the electrolyte to react with the electrode.

[0010] As another embodiment of the present invention, the flow-through tank includes a flow-through shell, a top end cap, a clamping cap, a fixing slot, and a quick-connect assembly. The conductive metal bolts of the electrode module are installed inside the top end cap through the fixing slot. The clamping cap secures the flow-through shell to the top end cap. The flow-through shell has openings on both sides, which are connected to the quick-connect assembly for flow. One end of the flow-through shell is an inlet, and the other end is an outlet. The flow-through tank is provided with an inlet and an outlet to achieve electrolyte circulation. The fixing slot on the top end cap ensures that the electrode module and the flow-through shell form a compact structure, and that the reaction rate inside the device is not affected during solution circulation.

[0011] Furthermore, in the flow-through tank, the bottom of the flow-through shell has a bottom recess for accommodating the conductive metal bolts of the electrode module; the top end cap has a top recess for accommodating the conductive nuts of the electrode module; the conductive metal bolts and conductive nuts cooperate to fix the electrode module; a baffle is provided at the center of the bottom of the flow-through shell to prevent the solution from flowing through the bottom.

[0012] This invention also defines an assembly method for a multi-electrode module device. During assembly, the cathode and anode electrodes are first inserted into the corresponding slots of the isolation fixing component in sequence. Then, a conductive tube is used to connect the circular holes of the electrodes of the same polarity, and a conductive metal bolt is used to pass through both ends of the conductive tube. Finally, the conductive nut is tightened to achieve overall compression, forming a compact structure, ensuring that the contact resistance between each electrode is small and the electrode spacing is uniform. The assembled electrode module is then installed and fixed in the electrolytic cell.

[0013] In one scenario, when the electrolytic cell is an immersion cell, the assembled electrode module is placed on the bottom end cap of the immersion cell, and then the immersion shell is installed. The bottom end cap and the immersion shell are detachably fixed by the bottom buckle, and then the immersion cell and the electrode module are fixed by the top fixing nut.

[0014] In another scenario, when the electrolytic cell is a flow-through cell, the assembled electrode module is placed inside the flow-through housing, and then the top end cover is installed. The conductive metal bolts of the electrode module are installed inside the top end cover through fixing clips; the flow-through housing and the top end cover are fixedly pressed together by the clamping cover.

[0015] Furthermore, the electrode modules and electrolytic cells of this device are not limited to circular shapes; they also include elliptical, square, and rectangular shapes. This device requires no additional welding for fixation, and the number of electrode plates can be increased or decreased according to actual application requirements, thus creating a multi-electrode module that is easy to assemble and convenient to replace electrode plates.

[0016] The beneficial effects of this invention are as follows: Compared with the prior art, the multi-electrode module device and assembly method provided by this invention have the following advantages: 1) The multi-electrode module device and assembly method of the present invention achieve flexible adjustment of the number of electrodes through modular design, greatly enhancing its adaptability. Furthermore, the use of isolation fixing components not only allows for precise control of the electrode spacing, but also enables the isolation fixing components and conductive tubes to work together to achieve both conductivity between electrodes of the same polarity and insulation between electrodes of different polarities. Simultaneously, it possesses excellent insulation characteristics, avoiding performance degradation caused by short circuits or interference between electrodes; 2) In practical applications, the multi-electrode module device and assembly method of this invention can be configured with either an immersion-type or a flow-through electrolytic cell, depending on specific requirements. Both forms have undergone structural optimization to improve reaction efficiency. The immersion-type cell simplifies disassembly and maintenance through a snap-fit ​​design between the bottom end cap and the shell; while the flow-through cell further enhances the stability and convenience of solution circulation through the design of a baffle platform and quick-connect components. These innovations give the device significant advantages in industrial production, laboratory research, and other fields. 3) The multi-electrode module device and assembly method of this invention emphasize ease of operation and safety. No additional welding steps are required during assembly, reducing the risks associated with high-temperature operations. Simultaneously, it avoids issues such as reduced precision and impact on electrode reaction area caused by welding quality defects during assembly. The use of conductive nuts and conductive metal bolts allows for rapid clamping and fixing of the electrode modules, resulting in a compact and reliable structure. This design not only reduces the complexity of manual operation but also significantly shortens assembly time, providing technical support for large-scale application. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the immersive device in Example 1.

[0018] Figure 2 This is a schematic diagram of the electrode module of the present invention.

[0019] Figure 3 This is a schematic diagram of the immersion tank in Example 1.

[0020] Figure 4 This is a front view of the device structure in Example 1.

[0021] Figure 5 This is a side view of the device structure in Example 1.

[0022] Figure 6 This is a top view of the device structure in Example 1.

[0023] Figure 7 for Figure 6 A cross-sectional view along the AA direction.

[0024] Figure 8 for Figure 6 Cross-sectional view in the BB direction.

[0025] Figure 9 This is a schematic diagram of the overall structure of the device in Example 2 (flow-through type).

[0026] Figure 10 This is a schematic diagram of the flow-through tank in Example 2.

[0027] Figure 11 This is a front view of the device structure in Example 2.

[0028] Figure 12 This is a side view of the device structure in Example 2.

[0029] Figure 13 This is a top view of the device structure in Example 2.

[0030] Figure 14 for Figure 13 A cross-sectional view along the AA direction.

[0031] Figure 15 for Figure 13 Cross-sectional view in the BB direction.

[0032] Wherein: 1-Electrode module; 2-Round hole; 3-Immersion tank; 4-Flow-through tank; 5-Bottom end cap; 6-Immersion shell; 7-Fixing nut; 8-Snap fastener; 9-Flow-through shell; 10-Top end cap; 11-Pressure cap; 12-Fixing bayonet; 13-Quick-connect assembly; 14-Electrode plate; 15-Conductive metal bolt; 16-Conductive tube; 17-Isolation fastener; 18-Slot; 19-Edge notch; 20-Conductive nut; 21-Bottom recess; 22-Water baffle; 23-Top recess; 24-Liquid inlet; 25-Liquid outlet. Detailed Implementation

[0033] The present invention will be further illustrated below with specific embodiments. However, these examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0034] Example 1: Multi-electrode module device using an immersion tank

[0035] This embodiment provides a multi-electrode module device using an immersion tank 3, which is mainly used for electrochemical processes that require the entire electrode module 1 to be immersed in a static or slow-flowing electrolyte pool for reaction, such as certain electrolytic synthesis, electroplating, or wastewater treatment applications.

[0036] The device mainly consists of an electrode module 1 and an immersion tank 3.

[0037] The electrode module 1 is the core reaction component. It includes several parallel-arranged cathode and anode electrode plates (collectively referred to as electrode plates 14), with the cathode and anode electrode plates 14 arranged alternately. All cathode electrode plates are electrically connected and mechanically fixed at one end through a set of conductive connection mechanisms, and all anode electrode plates are electrically connected and mechanically fixed at the other end through another set of conductive connection mechanisms. Specifically, a circular hole 2 is provided at the same end of the electrode plates that need to be connected. A series of slots 18 are correspondingly provided on an insulating fixing member 17. The end of the electrode plate 14 that mates with the insulating fixing member 17 has an edge notch 19 corresponding to the slot 18. During assembly, the cathode and anode electrode plates 14 are staggered in sequence, and their edge notches 19 are aligned and inserted into the corresponding slots 18, thereby achieving preliminary alignment and insulating fixation of all electrode plates 14 at this end, and accurately determining the spacing between each electrode plate.

[0038] Then, a conductive tube 16 is inserted into the circular hole 2 of each of the same-pole electrode plates. Conductive metal bolts 15 are then passed sequentially through the conductive tubes 16 in the circular holes 2 of all the same-pole electrode plates. Finally, a conductive nut 20 is tightened at the end of the bolt. By tightening the nut, all the same-pole electrode plates are pressed together through the conductive tubes 16, forming good electrical contact and a stable mechanical connection. The function of the conductive tube 16 is to ensure uniform distribution of the clamping force, increase the conductive contact area, significantly reduce contact resistance, and its rigidity also helps maintain the uniformity of the electrode spacing. Thus, an electrode module 1 with a compact structure, uniform electrode spacing, and good conductivity is assembled.

[0039] The immersion tank 3 is used to contain the electrolyte and mount the electrode module 1. It includes a bottom end cap 5 and an immersion shell 6. The sides of the immersion shell 6 have several openings for electrolyte flow. The bottom end cap 5 has an upward-facing snap fastener 8, and the inner bottom of the immersion shell 6 has a snap fastener groove that matches the snap fastener 8. The connection between the bottom end cap 5 and the immersion shell 6 is achieved through the engagement of the snap fastener 8 and the snap fastener groove. During assembly, the electrode module 1 is first placed on the bottom end cap 5, then the immersion shell 6 is fitted over the electrode module 1, and the snap fastener groove at its bottom is aligned with and engaged with the snap fastener 8 of the bottom end cap 5, achieving a detachable and secure connection between the bottom end cap 5 and the immersion shell 6. This snap fastener design simplifies the installation and disassembly process and facilitates maintenance. Finally, a fixing nut 7 is screwed into the conductive metal bolt 15 extending from the upper end of the electrode module 1. This fixing nut 7 presses against the top of the immersion shell 6, thereby securing the entire electrode module 1 to the immersion tank 3. Sufficient gaps are left between the immersion housing 6 below the electrode module 1 and the bottom end cap 5 to ensure that the electrolyte can flow fully and react with all the electrode plates 14.

[0040] When using the device of this embodiment, the entire electrolytic cell can be immersed in an external container filled with electrolyte, or electrolyte can be directly injected into the cell. The positive and negative terminals of the power supply are connected to the conductive metal bolts 15 or fixing nuts 7 at the upper and lower ends of the electrode module 1, respectively, to initiate the electrochemical reaction. This embodiment has a simple structure, is easy to assemble and disassemble, and has a stable electrode spacing, making it particularly suitable for experimental research or small-batch production scenarios.

[0041] Example 2: Multi-electrode module device using a flow-through tank

[0042] This embodiment provides a multi-electrode module device using a flow-through tank 4, which is mainly used in electrochemical processes that require forced circulation of electrolyte, such as continuous flow electrochemical reactors, electrochemical water treatment equipment, or certain energy storage devices.

[0043] The device also includes an electrode module 1 and a flow-through tank 4. The assembly method of the electrode module 1 is exactly the same as that in Embodiment 1, and will not be described again here.

[0044] The design of the flow-through tank 4 aims to achieve directional flow of the electrolyte. It mainly includes a flow-through shell 9, a top end cap 10, and a clamping cap 11. The flow-through shell 9 has inlet ports 24 and outlet ports 25 on its two side walls, connected to quick-connect components 13 for easy connection to external pipelines and electrolyte circulation. A raised baffle 22 is located at the center of the bottom inner side of the flow-through shell 9. Its function is to change the flow channel, forcing the electrolyte flowing in from the inlet port 24 to primarily pass through the flow channel between the electrode plates 14, enhancing mass transfer and preventing short-circuiting of the solution from flowing directly from the bottom. Simultaneously, a bottom recess 21 is machined at the bottom of the flow-through shell 9 corresponding to the position of the conductive metal bolt 15 at the lower end of the electrode module 1, to accommodate and protect the head of the conductive metal bolt 15.

[0045] The top end cap 10 has a through hole in the center, and a top recess 23 is machined inside it to accommodate and hide the conductive nut 20 at the upper end of the electrode module 1. The top end cap 10 is also provided with a fixing slot 12.

[0046] During assembly, the assembled electrode module 1 is first placed inside the flow-through housing 9, with the conductive metal bolt 15 at the lower end of the electrode module 1 positioned in the bottom recess 21. Then, the top end cap 10 is fitted onto the conductive metal bolt 15 at the upper end of the electrode module 1, allowing the bolt to pass through the fixing slot 12. The fixing slot 12 is designed to prevent the electrode module 1 from rotating or moving horizontally within the housing. Next, the clamping cap 11 is fitted over the top end cap 10 and locked to the top of the flow-through housing 9 via a threaded connection or snap-fit, thereby pressing and fixing the top end cap 10 and the flow-through housing 9 together to form a sealed cavity. The electrode module 1 is securely encapsulated within the flow-through housing 9, with its upper and lower ends limited by the top recess 23 and bottom recess 21, respectively.

[0047] During operation, the electrolyte is pumped into the flow-through housing 9 through the inlet 24 via the quick-connect assembly 13. Guided by the baffle 22, it flows evenly through the narrow channel between the alternating anode and cathode plates 14, undergoing a highly efficient electrochemical reaction before exiting from the outlet 25. The power cord can be easily connected to the exposed conductive metal bolt 15 on the top end cap 10. This flow-through design significantly enhances the mass transfer process, making it suitable for applications requiring high reaction rates and throughput. Furthermore, the quick-connect assembly 13 greatly facilitates system integration and maintenance.

[0048] In summary, this invention provides a multi-electrode module device that is easy to assemble, reliable in performance, highly adaptable, and easy to maintain through a modular electrode design and two optimized tank structures. Those skilled in the art can make appropriate modifications to the electrode shape, tank material, and dimensions without departing from the principles of this invention, and such modifications should also be considered within the scope of protection of this invention.

[0049] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A multi-electrode module device, characterized in that: It mainly includes an electrode module and an electrolytic cell body; the electrode module is installed in the electrolytic cell body; the electrode module includes several alternately parallel arranged cathode and anode electrodes, which are connected and fixed to each other through a conductive connection mechanism, and a conductive tube is provided between the electrodes of the same polarity. The conductive tube is sleeved on the outside of the conductive connection mechanism; an isolation fixing member is sleeved on the outside of the conductive tube; one end of each electrode is conductively connected to the electrodes of the same polarity through the conductive connection mechanism, and the other end is insulated and fixed through the isolation fixing member.

2. The multi-electrode module device as described in claim 1, characterized in that: The isolation fastener has several slots, and the electrode has an edge notch at one end that is installed with the isolation fastener; the edge notch of the electrode is inserted into the slot to achieve assembly.

3. The multi-electrode module device as described in claim 1, characterized in that: The conductive connection mechanism includes mutually matched conductive metal bolts and conductive nuts. A circular hole is provided at one end of the electrode that is installed with the conductive metal bolt. The conductive tube is sleeved in the circular hole of each electrode of the same polarity. The conductive metal bolt passes through the circular hole of each electrode of the same polarity and is fixed by conductive connection through the conductive nut.

4. The multi-electrode module device as described in claim 1, characterized in that: The electrolytic cell includes two structures: an immersion cell and a flow-through cell.

5. The multi-electrode module device as described in claim 4, characterized in that: The immersion tank includes a bottom end cap and an immersion shell. The electrode module is fixed to the immersion tank by a fixing nut. The bottom end cap and the immersion shell are fixed by a buckle at the bottom. The bottom end cap and the immersion shell of the immersion tank are left open to allow the electrolyte to react with the electrode.

6. The multi-electrode module device as described in claim 4, characterized in that: The flow-through tank includes a flow-through shell, a top end cap, a clamping cap, a fixing slot, and a quick-connect assembly. The conductive metal bolts of the electrode module are installed inside the top end cap through the fixing slot. The clamping cap secures the flow-through shell to the top end cap. The flow-through shell has openings on both sides and is connected to the quick-connect assembly for flow passage. One end of the flow-through shell is a liquid inlet, and the other end is a liquid outlet.

7. A multi-electrode module device as described in claim 6, characterized in that: In the flow-through tank, the bottom of the flow-through shell has a bottom recess for accommodating the conductive metal bolts of the electrode module; the top end cap has a top recess for accommodating the conductive nuts of the electrode module. The conductive metal bolts and conductive nuts are used to fix the electrode module; a water baffle is provided at the center of the bottom of the flow-through housing, which is used to block the solution from flowing through the bottom.

8. A method for assembling a multi-electrode module device as described in any one of claims 1 to 7, characterized in that: During assembly, the cathode and anode electrodes are first inserted into the corresponding slots of the isolation fixing component in sequence. Then, a conductive tube is used to connect to the round hole of the same electrode, and a conductive metal bolt is used to pass through both ends of the conductive tube. Finally, the conductive nut is tightened to achieve overall compression, forming a compact structure, ensuring that the contact resistance between each electrode is small and the electrode spacing is uniform. The assembled electrode module is then installed and fixed in the electrolytic cell.

9. The assembly method of a multi-electrode module device as described in claim 8, characterized in that: When the electrolytic cell is an immersion cell, the assembled electrode module is placed on the bottom end cap of the immersion cell, and then the immersion shell is installed. The bottom end cap and the immersion shell are detachably fixed by the bottom buckle, and then the immersion cell and the electrode module are fixed by the top fixing nut.

10. The assembly method of a multi-electrode module device as described in claim 8, characterized in that: When the electrolytic cell is a flow-through cell, the assembled electrode module is placed inside the flow-through shell, and then the top end cover is installed. The conductive metal bolts of the electrode module are installed inside the top end cover through the fixing buckle; the flow-through shell and the top end cover are fixed and pressed together by the clamping cover.

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