Electrolytic tank structure and testing device

Abstract

The utility model relates to the technical field of electrochemistry, and provides an electrolytic tank structure which comprises a cathode assembly and an anode assembly, the cathode assembly comprises a cathode end plate, a cathode insulating plate and a cathode current collector which are sequentially installed, and the anode assembly comprises an anode end plate, an anode insulating plate and an anode current collector which are sequentially installed; during installation, the cathode current collector faces one side of the anode current collector, and the cathode assembly and the anode assembly are detachably connected through the cathode end plate and the anode end plate. On the basis, the device can be conveniently detached and replaced from the test board, so that the efficiency is improved. In addition, the utility model further provides a testing device.

Description

Technical Field

[0001] The present application relates to the field of electrochemistry, and in particular to an electrolytic cell structure and a testing device. Background Art

[0002] With the rapid development of PEM (proton exchange membrane) and AEM (anion exchange membrane) technologies for pure water electrolysis to produce hydrogen, the performance of the electrolytic cell, as the core component of the entire system, directly determines the efficiency, stability, and overall cost-effectiveness of hydrogen production. Therefore, accurate and efficient testing of the electrolytic cell is a key step in technology iteration and product optimization.

[0003] However, in actual testing, the complexity of the electrolytic cell design, particularly its multi-layer structure, makes replacing the cell on the test bench a challenge. Whenever testing conditions need to be adjusted, new materials or designs need to be verified, or the cell needs to be replaced due to aging or damage, the multi-layer structure's disassembly and reassembly is time-consuming and labor-intensive, impacting efficiency.

[0004] Therefore, the present application studies an electrolytic cell structure that can be conveniently disassembled and replaced from a test bench and quickly tested, thereby improving efficiency. Utility Model Content

[0005] In order to facilitate the removal and replacement from the test bench, thus improving efficiency.

[0006] On the one hand, the present application provides an electrolytic cell structure, which adopts the following technical solution:

[0007] An electrolytic cell structure includes a cathode assembly and an anode assembly, wherein the cathode assembly includes a cathode end plate, a cathode insulating plate, and a cathode current collector installed in sequence, and the anode assembly includes an anode end plate, an anode insulating plate, and an anode current collector installed in sequence; when installed, the cathode current collector faces one side of the anode current collector, and the cathode assembly and the anode assembly are detachably connected via the cathode end plate and the anode end plate.

[0008] Through the above technical solution, the cathode assembly and the anode assembly are used to realize the modularization of the electrolytic cell. The detachable connection between the cathode end plate and the anode end plate makes it easier to remove the electrolytic cell from the test bench, thereby improving efficiency.

[0009] Optionally, a first bolt is further included, the cathode end plate and the cathode insulating plate are both provided with a first through-hole, and the cathode current collector is correspondingly provided with a first threaded hole; during installation, the first bolt passes through the first through-holes of the cathode end plate and the cathode insulating plate in sequence, and is screwed into the first threaded hole.

[0010] By adopting the above technical solution, the cathode assembly can be easily installed.

[0011] Optionally, a plurality of the first through holes are provided at intervals along a circumference of the cathode end plate and the cathode insulating plate, and the first threaded holes are provided corresponding to the first through holes.

[0012] Optionally, a second bolt is further included. The anode end plate and the anode insulating plate are both provided with a second through-hole, and the anode current collector is correspondingly provided with a second threaded hole. During installation, the second bolt passes through the second through-holes of the anode end plate and the anode insulating plate in sequence and is screwed into the second threaded hole.

[0013] Optionally, a plurality of second through holes are provided at intervals along a circumference of the anode end plate and the anode insulation plate, and the second threaded holes are provided corresponding to the second through holes.

[0014] Optionally, it also includes fixing bolts, a plurality of fixing holes are opened along the periphery of the cathode end plate, and fixing threaded holes corresponding to the fixing holes are opened along the periphery of the anode end plate; during installation, the fixing bolts pass through the fixing holes and pass through the cathode insulating plate, the cathode current collector, the anode current collector and the outer peripheral side of the anode insulating plate in turn, and are screwed into the fixing threaded holes.

[0015] By adopting the above technical solution, the cathode assembly and the anode assembly can be easily installed or disassembled.

[0016] Optionally, a sealing gasket is further included, wherein the sealing gasket is clamped between the cathode current collector and the anode current collector.

[0017] On the other hand, the present application provides a testing device that adopts the following technical solution:

[0018] A testing device comprises a testing platform and the above-mentioned electrolytic cell structure, wherein the electrolytic cell structure can be detachably mounted on the testing platform.

[0019] Optionally, at least two electrolytic cells are arranged at intervals on the test bench.

[0020] By adopting the above technical solution, the electrolytic cell can not only be disassembled conveniently and quickly when it needs to be disassembled, thus improving efficiency, but also multiple identical electrolytic cells with the same specifications and parameters can be installed on the test bench, ensuring consistent basic parameters for each electrolytic cell during testing, facilitating and quickly carrying out testing work and improving testing efficiency.

[0021] By adopting the above technical solution, it is possible to test multiple performances at the same time, thereby improving test diversity and stability.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The modularization of the electrolytic cell is achieved through the cathode assembly and the anode assembly. The detachable connection between the cathode end plate and the anode end plate makes it easier to remove the electrolytic cell from the test bench, thereby improving efficiency;

[0024] 2. The setting of fixing bolts and fixing threaded holes can facilitate the installation or removal of cathode and anode assemblies;

[0025] 3. The electrolytic cell structure is installed on the test bench, so when the electrolytic cell needs to be disassembled, the electrolytic cell can be disassembled quickly and conveniently, thereby improving efficiency.

[0026] 4. Use multiple identical electrolytic cells installed on the test bench, and the specifications and parameters of each electrolytic cell are the same. Standardized installation can ensure that the basic parameters of each electrolytic cell are consistent during testing, facilitate and quickly carry out testing work, and improve testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 1 is an exploded schematic diagram of a cathode assembly in the electrolytic cell structure of an embodiment of the present application;

[0028] Figure 2 1 is an exploded schematic diagram of an anode assembly in the electrolytic cell structure of an embodiment of the present application;

[0029] Figure 3 It is a structural schematic diagram of the electrolytic cell structure of an embodiment of the present application.

[0030] Figure numerals: 1. cathode assembly; 11. cathode end plate; 12. cathode insulating plate; 13. cathode current collector; 2. anode assembly; 21. anode end plate; 22. anode insulating plate; 23. anode current collector; 3. first bolt; 4. first through-hole; 5. first threaded hole; 6. second bolt; 7. second through-hole; 8. second threaded hole; 9. water inlet; 10. hydrogen outlet; 14. nitrogen purge port; 15. oxygen-water mixture outlet; 16. fixing bolt; 17. fixing hole; 18. fixing threaded hole; 19. sealing gasket. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses an electrolytic cell structure. Figure 1The electrolytic cell structure includes a cathode assembly 1 and an anode assembly 2. The cathode assembly 1 includes a cathode end plate 11, a cathode insulating plate 12, and a cathode current collector 13 installed in sequence. The anode assembly 2 includes an anode end plate 21, an anode insulating plate 22, and an anode current collector 23 installed in sequence. The cathode assembly 1 and the anode assembly 2 are modularly arranged so that they can be more flexible when used. During installation, the cathode current collector 13 faces the side of the anode current collector 23, and the cathode assembly 1 and the anode assembly 2 are detachably connected through the cathode end plate 11 and the anode end plate 21. When disassembly and assembly are required, the module installation is achieved by disassembly and assembly between the cathode end plate 11 and the anode end plate 21, which facilitates the installation of the electrolytic cell.

[0033] In some embodiments, the electrolytic cell structure further includes a first bolt 3. Both the cathode end plate 11 and the cathode insulating plate 12 are provided with a first through-hole 4. The cathode current collector 13 is provided with a first threaded hole 5. During installation, the first bolt 3 passes through the first through-holes 4 of the cathode end plate 11 and the cathode insulating plate 12, and is then threadedly engaged with the first threaded hole 5. The threaded connection facilitates installation of the cathode assemblies 1. In other embodiments, the various components of the cathode assembly 1 can also be detachably connected through snap-fitting or other means.

[0034] In some embodiments, multiple first through-holes 4 are provided spaced apart along the perimeter of the cathode end plate 11 and the cathode insulating plate 12. In this embodiment, the cathode end plate 11 and the cathode insulating plate 12 are both rectangular plate-shaped structures; in other embodiments, they may have any other shape. A first through-hole 4 is provided near each of the four corners of the rectangular structure, and the first threaded holes 5 are provided corresponding to the first through-holes 4, enabling stable fixing of the cathode assembly 1 along its four corners. In other embodiments, the number of first through-holes 4 may vary as needed.

[0035] Reference Figure 2 In some embodiments, the electrolytic cell structure further includes a second bolt 6, the anode end plate 21 and the anode insulating plate 22 are each provided with a second through-hole 7, and the anode current collector 23 is provided with a second threaded hole 8. In some embodiments, a plurality of second through-holes 7 are provided at intervals along the circumference of the anode end plate 21 and the anode insulating plate 22, and the second threaded holes 8 are provided corresponding to the second through-holes 7. In this embodiment, one second through-hole 7 is provided along the anode end plate 21 near the four corners, so that the anode assembly 2 can be stably fixed. During installation, the second bolt 6 passes through the second through-holes 7 of the anode end plate 21 and the anode insulating plate 22 in turn, and is then screwed into the second threaded hole 8, so that the various components of the anode assembly 2 can be easily disassembled and assembled.

[0036] In this embodiment, the anode end plate 21 is connected to a water inlet 9 , a hydrogen outlet 10 , a nitrogen purge port 14 and an oxygen-water mixture outlet 15 .

[0037] In some embodiments, the electrolytic cell structure further includes fixing bolts 16. A plurality of fixing holes 17 are defined along the circumference of the cathode end plate 11. In this embodiment, eight fixing holes 17 are defined along the circumference of the cathode end plate 11. A corresponding fixing threaded hole 18 corresponding to the fixing holes 17 is defined along the circumference of the anode end plate 21. In this embodiment, the dimensions of the cathode end plate 11 are greater than those of the cathode insulating plate 12 and the cathode current collector 13. That is, the length and width of the cathode end plate 11 are both greater than those of the cathode insulating plate 12 and the cathode current collector 13. The dimensions of the cathode insulating plate 12 and the cathode current collector 13 are consistent. The dimensions of the anode end plate 21 are consistent with those of the cathode end plate 11. The dimensions of the anode insulating plate 22 and the anode current collector 23 are consistent with those of the cathode insulating plate 12. During installation, the fixing bolt 16 passes through the fixing hole 17 and passes through the cathode insulating plate 12, the cathode current collector 13, the anode current collector 23 and the outer peripheral side of the anode insulating plate 22 in turn, and is screwed into the fixing threaded hole 18. Passing through means that there is no contact between the fixing bolt 16 and each component, so that the cathode assembly 1 and the anode assembly 2 can be easily disassembled and assembled.

[0038] In some embodiments, the electrolytic cell structure further includes a sealing gasket 19 , which is sandwiched between the cathode current collector 13 and the anode current collector 23 .

[0039] The implementation principle of an electrolytic cell structure in an embodiment of the present application is: the modularization of the electrolytic cell is achieved through the cathode assembly 1 and the anode assembly 2, and the detachable connection between the cathode end plate 11 and the anode end plate 21 allows the cathode assembly to be quickly removed from the anode assembly on the test bench, thereby improving installation and testing efficiency.

[0040] The present application also discloses a test device. The test device includes a test bench and the aforementioned electrolytic cell structure. The electrolytic cell structure is detachably mounted on the test bench. In this embodiment, the electrolytic cell structure is secured to the test bench by screwing the anode end plate 21. Since the anode end plate 21 is secured to the cathode end plate 11, the cathode assembly 1 and the anode assembly 2 are secured. Therefore, when the electrolytic cell structure needs to be disassembled, modular disassembly is possible, improving assembly and disassembly flexibility and efficiency.

[0041] In some embodiments, at least two electrolytic cells are spaced apart along the test bench, so that the test bench can be used to simultaneously test data such as gas diffusion performance, electrolysis efficiency, gas composition analysis, and electrochemical performance, thereby improving test efficiency.

[0042] The implementation principle of a testing device in an embodiment of the present application is as follows: when the electrolytic cell needs to be disassembled, the electrolytic cell can be disassembled conveniently and quickly, thereby improving efficiency; at the same time, multiple identical electrolytic cell structures are installed on the test bench, and the specifications and parameters of each electrolytic cell are the same, and standardized installation can ensure that the basic parameters of each electrolytic cell are consistent during testing, thereby facilitating and quickly carrying out testing work and improving testing efficiency.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An electrolytic cell structure, characterized in that: It includes a cathode assembly and an anode assembly, the cathode assembly includes a cathode end plate, a cathode insulating plate and a cathode current collector installed in sequence, and the anode assembly includes an anode end plate, an anode insulating plate and an anode current collector installed in sequence; when installed, the cathode current collector faces the side of the anode current collector, and the cathode assembly and the anode assembly are detachably connected through the cathode end plate and the anode end plate.

2. An electrolytic cell structure according to claim 1, characterized in that: It also includes a first bolt. The cathode end plate and the cathode insulating plate are both provided with a first through-hole, and the cathode current collector is correspondingly provided with a first threaded hole. During installation, the first bolt passes through the first through-holes of the cathode end plate and the cathode insulating plate in sequence and is screwed into the first threaded hole.

3. An electrolytic cell structure according to claim 2, characterized in that: A plurality of the first through holes are spaced apart along a circumference of the cathode end plate and the cathode insulating plate, and the first threaded holes are corresponding to the first through holes.

4. The electrolytic cell structure according to claim 1, wherein: It also includes a second bolt. The anode end plate and the anode insulating plate are both provided with a second through-hole, and the anode current collector is correspondingly provided with a second threaded hole. During installation, the second bolt passes through the second through-holes of the anode end plate and the anode insulating plate in sequence and is screwed into the second threaded hole.

5. An electrolytic cell structure according to claim 4, characterized in that: A plurality of second through holes are provided at intervals along a circumference of the anode end plate and the anode insulating plate, and the second threaded holes are provided corresponding to the second through holes.

6. The electrolytic cell structure according to claim 1, characterized in that: It also includes fixing bolts, a plurality of fixing holes are opened along the periphery of the cathode end plate, and fixing threaded holes corresponding to the fixing holes are opened along the periphery of the anode end plate; during installation, the fixing bolts pass through the fixing holes and pass through the cathode insulating plate, the cathode current collector, the anode current collector and the outer peripheral side of the anode insulating plate in sequence, and are screwed into the fixing threaded holes.

7. The electrolytic cell structure according to claim 1, characterized in that: A sealing gasket is also included, and the sealing gasket is clamped between the cathode current collector and the anode current collector.

8. A testing device, characterized in that: It comprises a test bench and the electrolytic cell structure according to any one of claims 1 to 7, wherein the electrolytic cell structure can be detachably mounted on the test bench.

9. A testing device according to claim 8, characterized in that: At least two electrolytic cells are arranged on the test bench at intervals.

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