Perforation repair device for diaphragm of flow battery

Abstract

The utility model discloses a diaphragm perforation repairing device for a flow battery, which relates to the technical field of battery diaphragm detection and comprises an operating platform, and a lower template is arranged above the operating platform; limiting groove assemblies are arranged at the four corners of the top of the lower die plate correspondingly. Each limiting groove assembly comprises a plurality of second square grooves distributed in a matrix shape. A film limiting frame is arranged above the lower mold plate, inserting columns are integrally formed at the four corners of the bottom of the film limiting frame, and the inserting columns are matched with the corresponding second square grooves; a first square groove is formed in the bottom end of the second square groove and penetrates through the bottom end of the lower die plate. According to the diaphragm perforation repairing device for the flow battery, by arranging the first square groove, the cover plate, the diaphragm limiting frame and other structures, positioning and repairing of battery diaphragms with different sizes and different thicknesses are met, the use flexibility of the repairing device is improved, heat can penetrate through the first square groove and is conducted to the diaphragm through the cover plate, namely, the first square groove, and a heat conduction channel is formed; the heat utilization efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery separator testing technology, and in particular to a device for repairing perforated separators in flow batteries. Background Technology

[0002] A flow battery consists of multiple individual cells stacked together, each containing a separator. A flow battery stack typically contains more than 20 cells. For optimal electrochemical performance, the cells usually need to be tightly stacked to reduce contact resistance and achieve a certain porous electrode compression ratio. However, excessive stacking pressure can cause severe deformation or damage to the components, leading to degradation of the physicochemical properties of critical components or even complete mechanical failure.

[0003] In flow batteries, if the stack preload is too high, airborne particles adhere to the separator, or the electrode surface morphology is uneven, the separator may perforate, causing voltage instability, self-discharge, micro-short circuits, and other effects, thus degrading battery performance.

[0004] For example, the patent entitled "Flow Battery Separator Perforation Repair Device" (patent application number: CN202323526636.3) discloses a flow battery separator perforation repair device. The control component is a threaded component (bolt) that is threaded to the lower template and can abut against the membrane frame. The membrane frame can be raised by driving the threaded component. However, in actual use, the lower template has a certain thickness, which is not conducive to heat conduction, and the efficiency needs to be improved.

[0005] Therefore, it is necessary to propose a device for repairing perforated membranes in flow batteries to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a device for repairing perforations in the separator of a flow battery, so as to solve the problem that the lower template has a certain thickness, which is not conducive to heat conduction and the efficiency needs to be improved in actual use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flow battery diaphragm perforation repair device, including an operating table, with a lower template provided above the operating table;

[0008] Limiting groove components are provided at the four corners of the top of the lower template, and the limiting groove components include multiple second square grooves distributed in a matrix.

[0009] A limiting membrane frame is provided above the lower template, and an insert post is integrally formed at each of the four corners of the bottom of the limiting membrane frame. The insert post is engaged with the corresponding second square groove.

[0010] The bottom end of the second square groove is provided with a first square groove, and the first square groove penetrates the bottom end of the lower template.

[0011] Preferably, the length and width of the second square groove are greater than the length and width of the first square groove.

[0012] Preferably, a cover plate is snapped into the inside of the second square groove, and the top of the cover plate is flush with the upper surface of the lower template.

[0013] Preferably, the insert includes a first column segment and a second column segment. The first column segment is fixedly connected to the bottom of the membrane frame and mates with a second square groove. The second column segment is fixedly connected to the bottom end of the first column segment and mates with the first square groove.

[0014] Preferably, a first heating plate is provided at the bottom of the lower template.

[0015] Preferably, an upper template is provided above the lower template, a second heating plate is provided on the top of the upper template, guide posts are fixedly connected to the four corners of the bottom of the upper template, and guide holes corresponding to the guide posts are provided on the lower template.

[0016] Preferably, a vertical frame is fixedly connected to the upper surface of the operating table, an electric push rod is fixedly connected to the top of the vertical frame, a horizontal plate is fixedly connected to the telescopic end of the electric push rod, the horizontal plate is fixedly connected to the upper template, a bracket is fixedly connected to the upper surface of the operating table, and the lower template is fixedly connected to the bracket.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. This utility model, by setting up a first square groove, a cover plate and a membrane limiting frame, can meet the positioning and repair of battery separators of different sizes and thicknesses, improve the flexibility of the repair device, and allow heat to pass through the first square groove and be conducted to the separator by the cover plate, that is, the first square groove forms a heat conduction channel, thereby improving the heat utilization efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the perforation repair device for the diaphragm of a flow battery according to this utility model.

[0020] Figure 2 This is a schematic diagram of the perforation repair device for the diaphragm of the flow battery according to this utility model from another perspective.

[0021] Figure 3 This is a schematic diagram of the membrane frame and insert column structure of this utility model.

[0022] Figure 4 This is a schematic diagram of the first and second square grooves of this utility model.

[0023] In the diagram: 1. Operating table; 2. Lower template; 3. First square groove; 4. Second square groove; 5. Cover plate; 6. Membrane limiting frame; 7. Insert column; 701. First column segment; 702. Second column segment; 8. First heating plate; 9. Upper template; 10. Guide column; 11. Guide hole; 12. Second heating plate; 13. Vertical frame; 14. Electric push rod; 15. Horizontal plate; 16. Support. Detailed Implementation

[0024] This utility model provides, for example Figures 1-4 The device shown is a flow battery diaphragm perforation repair device, including an operating table 1, a lower template 2 is provided above the operating table 1, and a first heating plate 8 is provided at the bottom of the lower template 2. The first heating plate 8 includes structures such as electric heating wires, is powered, and is provided with a protective cover (not shown in the figure) to prevent it from affecting the operator's use.

[0025] Limiting groove components are provided at the four corners of the top of the lower template 2. The limiting groove components include multiple second square grooves 4 distributed in a matrix. The bottom of the second square grooves 4 is provided with a first square groove 3, and the first square groove 3 penetrates the bottom of the lower template 2. A limiting membrane frame 6 is provided above the lower template 2. The bottom of the limiting membrane frame 6 is integrally formed with a post 7 at each of the four corners. The post 7 cooperates with the corresponding second square groove 4.

[0026] The insert 7 includes a first column segment 701 and a second column segment 702. The first column segment 701 is fixedly connected to the bottom of the membrane frame 6 and cooperates with the second square groove 4. The second column segment 702 is fixedly connected to the bottom end of the first column segment 701 and cooperates with the first square groove 3.

[0027] In practical use, multiple membrane frames 6 with different lengths, widths, and thicknesses are provided. Different specifications of membrane frames can be selected according to the different lengths and widths of the membranes to meet the positioning and repair of battery membranes of different sizes and thicknesses, improve the flexibility of the repair device and help reduce the repair cost of the membrane.

[0028] The height of the membrane frame 6 protruding from the lower template 2 is between 80% and 100% of the battery separator thickness, and the pressure on the battery separator is within a suitable range.

[0029] Furthermore, the operator selects a suitable membrane-limiting frame 6, the second column segment 702 passes through the corresponding second square groove 4 and inserts into the first square groove 3, and the first column segment 701 is inserted into the second square groove 4 to position the membrane-limiting frame 6.

[0030] To prevent the top of the second square groove 4 from being exposed and affecting the diaphragm repair, a cover plate 5 is snapped into the inside of the second square groove 4, and the top of the cover plate 5 is flush with the upper surface of the lower template 2. The length and width of the second square groove 4 are greater than those of the first square groove 3. The cover plate 5 is inserted into the corresponding second square groove 4 so that after the membrane frame 6 is installed, the top of the second square groove 4 in other positions will not be directly exposed, facilitating the repair operation; and because the length and width of the second square groove 4 are greater than those of the first square groove 3, the cover plate 5 will not enter the interior of the first square groove 3.

[0031] When the membrane frame 6 needs to be replaced, the cover plate 5 in the corresponding second square groove 4 can be removed, and it can be removed by suction cup negative pressure adsorption.

[0032] In actual use, since the thickness of the cover plate 5 is less than the thickness of the lower template 2, heat can pass through the first square groove 3 and be conducted to the diaphragm by the cover plate 5. That is, the first square groove 3 forms a heat conduction channel, which improves the heat utilization efficiency.

[0033] An upper template 9 is positioned above the lower template 2. A second heating plate 12 is mounted on the top of the upper template 9. Guide posts 10 are fixedly connected to the four corners of the bottom of the upper template 9. Guide holes 11 corresponding to the guide posts 10 are provided on the lower template 2. The second heating plate 12 includes structures such as electric heating wires, is powered, and is equipped with a protective cover (not shown in the figure) to ensure it does not affect the operator's use. The guide posts 10 and guide holes 11 improve the stability of the upper template 9 during vertical movement.

[0034] The upper template 9 and the lower template 2 can be made of aluminum plates, which are lightweight and have good thermal conductivity; and both the upper template 9 and the lower template 2 have anti-stick coatings on their opposite sides to prevent the diaphragm from sticking together.

[0035] A vertical frame 13 is fixedly connected to the upper surface of the operating table 1. An electric push rod 14 is fixedly connected to the top of the vertical frame 13. A horizontal plate 15 is fixedly connected to the telescopic end of the electric push rod 14. The horizontal plate 15 is fixedly connected to the upper template 9. A bracket 16 is fixedly connected to the upper surface of the operating table 1, and the lower template 2 is fixedly connected to the bracket 16. In actual use, the electric push rod 14 and the horizontal plate 15 are used to drive the upper template 9 to move up and down, and cooperate with the lower template 2 and the membrane frame 6 to perform hot pressing repair.

Claims

1. A liquid flow battery separator puncture repair device comprising an operating table (1), characterized in that: A lower template (2) is provided above the operating table (1); Limiting groove components are provided at the four corners of the top of the lower template (2), and the limiting groove components include multiple second square grooves (4) distributed in a matrix. A limited membrane frame (6) is provided above the lower template (2). Each of the four corners of the bottom of the limited membrane frame (6) is integrally formed with a post (7). The post (7) cooperates with the corresponding second square groove (4). The bottom end of the second square groove (4) is provided with a first square groove (3), and the first square groove (3) penetrates the bottom end of the lower template (2).

2. A liquid flow battery separator puncture repair device according to claim 1, wherein: The length and width of the second square groove (4) are greater than the length and width of the first square groove (3).

3. A liquid flow battery separator puncture repair device according to claim 1, wherein: The second square groove (4) is fitted with a cover plate (5), and the top of the cover plate (5) is flush with the upper surface of the lower template (2).

4. A liquid flow battery separator puncture repair device according to claim 1, wherein: The insert (7) includes a first column segment (701) and a second column segment (702). The first column segment (701) is fixedly connected to the bottom of the membrane frame (6) and cooperates with the second square groove (4). The second column segment (702) is fixedly connected to the bottom end of the first column segment (701) and cooperates with the first square groove (3).

5. A liquid flow battery separator puncture repair device according to claim 1, wherein: The bottom of the lower template (2) is provided with a first heating plate (8).

6. A liquid flow battery separator puncture repair device according to claim 1, wherein: An upper template (9) is provided above the lower template (2). A second heating plate (12) is provided on the top of the upper template (9). Guide posts (10) are fixedly connected to the four corners of the bottom of the upper template (9). Guide holes (11) corresponding to the guide posts (10) are opened on the lower template (2).

7. A liquid flow battery separator puncture repair device according to claim 6, wherein: A vertical frame (13) is fixedly connected to the upper surface of the operating table (1), an electric push rod (14) is fixedly connected to the top of the vertical frame (13), a horizontal plate (15) is fixedly connected to the telescopic end of the electric push rod (14), the horizontal plate (15) is fixedly connected to the upper template (9), a bracket (16) is fixedly connected to the upper surface of the operating table (1), and the lower template (2) is fixedly connected to the bracket (16).

Images