Lithium-sulfur battery liquid injection auxiliary device

Abstract

The utility model relates to the technical field of lithium-sulfur battery processing, and discloses a lithium-sulfur battery liquid injection auxiliary device which comprises a mounting plate, a row of placing grooves are formed in the upper surface of the mounting plate, a movable groove is formed in the bottom wall of the interior of each placing groove, an empty groove is formed in the mounting plate, and the movable grooves are arranged in the empty grooves. The empty groove is communicated with the row of movable grooves, a connecting rod is fixedly connected between two side walls in the empty groove, the surface of the connecting rod is slidably sleeved with a connecting sleeve, and the upper surface of the connecting sleeve is fixedly connected with a row of short rods; the top end of each short rod extends into the corresponding placement groove and is fixedly connected with a clamping plate, each short rod can move in the corresponding movable groove, and when the device is used, a plurality of battery cells can be fixed at the same time without being held for a long time, so that the device is convenient to use, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the field of lithium-sulfur battery processing technology, specifically to a lithium-sulfur battery electrolyte injection auxiliary device. Background Technology

[0002] With the development of modern society, lithium batteries are being used more and more widely. Among them, lithium-sulfur batteries are a very promising type of lithium battery due to their high energy density. The manufacturing materials for lithium-sulfur batteries can be roughly divided into: sulfur (positive electrode material), lithium (negative electrode material), separator, aluminum-plastic film, and electrolyte. The manufacturing process of lithium-sulfur battery cells can be roughly divided into the following steps: stacking (stacking the positive electrode material, separator, and negative electrode material together), welding (welding the current collector), encapsulation (encapsulating the cell with aluminum-plastic film), and electrolyte injection.

[0003] A lithium-sulfur battery electrolyte injection auxiliary device, disclosed in publication number CN 207852800 U, includes: a crossbar, a fixing member disposed at one end of the crossbar, and a clamping member movable along the crossbar. The fixing member has a fixing block, and the clamping member has a clamping block. The crossbar is perpendicular to the plane of the clamping block, and the plane of the clamping block is parallel to the plane of the fixing block. The area of ​​the clamping block and the fixing block is larger than the area of ​​the lithium-sulfur battery cell. The clamping member also has a gripping part and a clamping handle. The gripping part surrounds the circumference of the crossbar, and the clamping handle is connected to the gripping part so that the gripping part can be opened and closed to move away from or clamp the crossbar. This auxiliary device can clamp the battery cell before electrolyte injection, promote the electrolyte absorption efficiency of the positive electrode, make the electrolyte more uniform inside the battery cell, and improve the battery cell performance and consistency.

[0004] However, the above-mentioned device still has some shortcomings in use. When fixing and clamping the battery cell, the user needs to hold the device for a long time, which is quite strenuous and inconvenient to use. At the same time, it can only clamp and fix one battery cell at a time and cannot clamp and fix multiple battery cells at the same time, which is inefficient and limits its use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a lithium-sulfur battery electrolyte injection auxiliary device, which solves the problems of users having to hold the device for a long time when fixing and clamping the battery cells, which is laborious and inconvenient to use. In addition, it can only clamp and fix one battery cell at a time and cannot clamp and fix multiple battery cells at the same time, resulting in low efficiency and limited use.

[0006] This utility model provides the following technical solution: a lithium-sulfur battery electrolyte injection auxiliary device, including a mounting plate, a row of placement slots opened on the upper surface of the mounting plate, a movable slot opened in the inner bottom wall of each placement slot, an empty slot opened inside the mounting plate, the empty slot and the row of movable slots being connected, a connecting rod fixedly connected between two side walls inside the empty slot, a connecting sleeve slidably sleeved on the surface of the connecting rod, a row of short rods fixedly connected to the upper surface of the connecting sleeve, the top end of each short rod extending into the interior of the corresponding placement slot and fixedly connected to a clamping plate, each short rod being movable inside the corresponding movable slot, and a row of first springs fixedly connected between one end of the connecting sleeve and one side wall inside the empty slot.

[0007] Preferred technical solution 1: The mounting plate has through slots on both sides, and the connecting sleeve has levers fixedly connected to both sides. Both levers extend to the outside of the mounting plate, and the two levers can move inside the two through slots respectively.

[0008] Preferred technical solution 2: Protective pads are fixedly installed on the surface of each clamping plate and the inner wall of each placement slot.

[0009] Preferred technical solution 3: A vertical rod is fixedly connected to the upper surface of each of the two levers, and a through hole is opened on the surface of each of the two vertical rods. A locking rod is slidably sleeved inside each of the two through holes, and a second spring is sleeved on one side of each of the two locking rods.

[0010] Preferred technical solution four: One end of the mounting plate is fixedly connected to two fixing plates, and the surfaces of the two fixing plates are provided with slots that match the locking rod.

[0011] Preferred technical solution five: The protective pad, the clamp, and the mounting plate are all made of corrosion-resistant materials and can withstand the corrosion of electro-hydraulic fluid.

[0012] Compared with the prior art, this utility model provides a lithium-sulfur battery electrolyte injection auxiliary device with the following advantages: In use, multiple battery cells are placed inside the placement slot at once, and then two levers are pulled to the rear. The levers pull the connecting sleeve to move, thereby moving multiple short rods and clamping plates. The clamping plates and placement slot work together to clamp and fix the battery cells. At the same time, as the levers are pulled backward, the vertical rod and locking rod move backward. When the locking rod moves to the position of the locking slot, the elastic force of the second spring moves the locking rod to insert into the locking slot, fixing the lever and connecting sleeve, thus completing the fixation of the battery cells. Then electrolyte injection can be performed. After the electrolyte injection is completed, the two locking rods are pulled outward to disengage them from the locking slot. Then the levers can return to their original position under the elastic force of the first spring, releasing the lock on the battery cells, which can then be removed. This device can fix multiple battery cells simultaneously without requiring prolonged holding, making it convenient to use and saving time and effort. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the internal structure of the mounting plate of this utility model;

[0015] Figure 3 This is an exploded view of the lever and vertical rod structure of this utility model.

[0016] In the diagram: 1. Mounting plate; 2. Placement slot; 3. Movable slot; 4. Empty slot; 5. Connecting rod; 6. Connecting sleeve; 7. Short rod; 8. Clamping plate; 9. Through slot; 10. Toggle rod; 11. Vertical rod; 12. Through hole; 13. Locking rod; 14. Second spring; 15. Fixing plate; 16. Locking groove; 17. First spring. Detailed Implementation

[0017] Please see Figure 1-3 ,

[0018] Example 1: A lithium-sulfur battery electrolyte injection auxiliary device includes a mounting plate 1. A row of placement slots 2 is formed on the upper surface of the mounting plate 1. Each placement slot 2 has a movable slot 3 formed on its inner bottom wall. An empty slot 4 is formed inside the mounting plate 1. The empty slot 4 is connected to the row of movable slots 3. A connecting rod 5 is fixedly connected between two side walls inside the empty slot 4. A connecting sleeve 6 is slidably sleeved on the surface of the connecting rod 5. A row of short rods 7 is fixedly connected to the upper surface of the connecting sleeve 6. The top end of each short rod 7 extends into the interior of the corresponding placement slot 2 and is fixedly connected to a clamping plate 8. Each short rod 7 can move inside the corresponding movable slot 3. A row of first springs 17 is fixedly connected between one end of the connecting sleeve 6 and one side wall inside the empty slot 4.

[0019] Example 2: The difference between this example and Example 1 is that the mounting plate 1 has through grooves 9 on both sides, and the connecting sleeve 6 has levers 10 fixedly connected to both sides. The two levers 10 extend to the outside of the mounting plate 1 and can move inside the two through grooves 9 respectively, so that the user can pull the connecting sleeve 6 to move it.

[0020] Example 3: The difference between this example and Example 1 is that protective pads are fixedly installed on the surface of each clamping plate 8 and the inner wall of each placement slot 2 to facilitate the protection of the battery cell.

[0021] Example 4: The difference between this example and Example 1 is that, in this example, vertical rods 11 are fixedly connected to the upper surfaces of the two levers 10, and through holes 12 are opened on the surfaces of the two vertical rods 11. Locking rods 13 are slidably sleeved inside the two through holes 12, and a second spring 14 is sleeved on one side of the two locking rods 13. The locking rods 13 facilitate the fixing of the positions of the levers 10 and the connecting sleeves 6.

[0022] Example 5: The difference between this example and Example 1 is that two fixing plates 15 are fixedly connected to one end of the mounting plate 1. The surfaces of the two fixing plates 15 are provided with slots 16 that match the locking rod 13, which facilitates fixing the position of the connecting sleeve 6. The battery cell can be continuously fixed without holding the device for a long time.

[0023] Example 6: The difference between this example and Example 1 is that the protective pad, clamp 8 and mounting plate 1 are all made of corrosion-resistant materials, which can withstand the corrosion of the electro-hydraulic fluid, making the device more durable.

[0024] In summary, this lithium-sulfur battery electrolyte injection auxiliary device, when in use, places multiple battery cells into the placement slot 2 at once, and then pulls two levers 10 to the rear. The levers 10 move the connecting sleeve 6, thereby moving multiple short rods 7 and clamping plates 8. The clamping plates 8 and the placement slot 2 work together to clamp and fix the battery cells. At the same time, as the levers 10 are pulled backward, the vertical rod 11 and the locking rod 13 move backward. When the locking rod 13 moves to the position of the locking slot 16, the elastic force of the second spring 14 moves the locking rod. Move 13 to insert the locking lever 13 into the slot 16, fixing the lever 10 and the connecting sleeve 6, thus completing the fixation of the battery cell. Then, liquid can be injected. After the liquid is injected, pull the two locking levers 13 outward to disengage them from the slot 16. Then, the lever 10 can return to its original position under the elastic force of the first spring 17, releasing the lock on the battery cell, and the battery cell can be removed. This device can fix multiple battery cells at the same time without requiring a long holding time, making it convenient to use and saving time and effort.

Claims

1. A lithium-sulfur battery electrolyte injection auxiliary device, comprising a mounting plate (1), characterized in that: The mounting plate (1) has a row of placement slots (2) on its upper surface. Each placement slot (2) has a movable slot (3) on its inner bottom wall. The mounting plate (1) has an empty slot (4) inside. The empty slot (4) is connected to a row of movable slots (3). A connecting rod (5) is fixedly connected between two side walls inside the empty slot (4). A connecting sleeve (6) is slidably sleeved on the surface of the connecting rod (5). A row of short rods (7) is fixedly connected to the upper surface of the connecting sleeve (6). The top of each short rod (7) extends into the interior of the corresponding placement slot (2) and is fixedly connected to a clamp (8). Each short rod (7) can move inside the corresponding movable slot (3). A row of first springs (17) is fixedly connected between one end of the connecting sleeve (6) and one side wall inside the empty slot (4).

2. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 1, characterized in that: The mounting plate (1) has through slots (9) on both sides, and the connecting sleeve (6) has levers (10) fixedly connected to both sides. Both levers (10) extend to the outside of the mounting plate (1), and the two levers (10) can move inside the two through slots (9) respectively.

3. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 2, characterized in that: Protective pads are fixedly installed on the surface of each of the clamps (8) and on the inner wall of each of the placement slots (2).

4. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 3, characterized in that: The upper surfaces of the two levers (10) are fixedly connected with vertical rods (11), and the surfaces of the two vertical rods (11) are provided with through holes (12). The interiors of the two through holes (12) are slidably fitted with locking rods (13), and the outer ends of the two locking rods (13) are fitted with second springs (14).

5. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 4, characterized in that: Two fixing plates (15) are fixedly connected to one end of the mounting plate (1), and the surfaces of the two fixing plates (15) are provided with slots (16) that match the locking rod (13).

6. The lithium-sulfur battery electrolyte injection auxiliary device according to claim 5, characterized in that: The protective pad, the clamp (8), and the mounting plate (1) are all made of corrosion-resistant materials and can withstand the corrosion of electro-hydraulic fluid.

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