Diaphragm cutting device and battery cell recycling equipment

Abstract

The utility model provides a diaphragm cutting device and battery cell recovery equipment, the diaphragm cutting device comprises a material conveying mechanism, the material conveying mechanism is used for conveying a battery cell to a cutting station; the alignment mechanism is connected to the material conveying mechanism and is used for aligning the battery cell with the cutting station; and the diaphragm cutting mechanism is used for cutting the diaphragm of the battery cell at the cutting station, so that two starting ends of the diaphragm are obtained on the two sides of the cutting position, and the cutting success rate and the notch quality of the diaphragm of the battery cell are improved.

Description

Technical Field

[0001] This application belongs to the field of cutting technology, specifically, it relates to a diaphragm cutting device and a battery cell recycling device. Background Technology

[0002] When dismantling and recycling used batteries, the common method is to crush the entire battery cell pack and then sort it.

[0003] However, the complete breakage of the battery cell leads to severe mixing of positive and negative electrode materials, which greatly increases the difficulty and cost of subsequent separation. In addition, although it is currently possible to use a hot knife to cut the separator of the battery cell for sorting and recycling, the cutting accuracy is low and the cut quality is poor. Utility Model Content

[0004] One objective of this application is to provide a new technical solution for a diaphragm cutting device and a battery cell recycling device.

[0005] According to a first aspect of the embodiments of this application, a diaphragm cutting device is provided, comprising:

[0006] The feeding mechanism is used to transport battery cells to the cutting station;

[0007] Alignment mechanism, which is connected to the feeding mechanism and is used to align the battery cell with the cutting station;

[0008] A diaphragm cutting mechanism is used to cut the diaphragm of a battery cell at a cutting station.

[0009] Optionally, the alignment mechanism includes a first alignment measuring structure, which includes a first positioning bracket, a first driving member, and two first push plates. The first positioning bracket is disposed on the material conveying mechanism.

[0010] When the first driving member is activated, the two first push plates can move closer to or further away from each other in a direction perpendicular to the cell delivery, so as to push the cell to align with the cutting station;

[0011] The spacing between the two first push plates corresponds to the size of the cell in the direction perpendicular to its transport.

[0012] Optionally, the first driving component includes a first timing belt and two first sliders, wherein the first timing belt is disposed on the first positioning bracket and is rotatable on the first positioning bracket;

[0013] The first pusher plate is connected to the first synchronous belt via the first slider, and when the first synchronous belt rotates, the two first pushers can move closer to or further away from each other in a direction perpendicular to the cell delivery.

[0014] Optionally, the alignment mechanism includes a second alignment measuring structure, which includes a second positioning bracket, a second driving member, and two second push plates. The second positioning bracket is disposed on the material conveying mechanism.

[0015] When the second drive unit is activated, the two second push plates can move closer to or further away from each other in the direction of cell delivery, so as to push the cell to align with the cutting station;

[0016] The spacing between the two second push plates corresponds to the size of the cell in its delivery direction.

[0017] Optionally, the second driving member includes a second timing belt and two second sliders, wherein the second timing belt is disposed on the second positioning bracket and is rotatable on the second positioning bracket;

[0018] The second pusher plate is connected to the second synchronous belt via the second slider, and when the second synchronous belt rotates, the two second pushers can move closer to or further away from each other in the direction of cell delivery.

[0019] Optionally, the second alignment measurement structure includes a lifting component, and the second synchronous belt is disposed on the movable plate of the second positioning bracket. The lifting component is used to drive the movable plate away from or towards the material conveying mechanism.

[0020] Optionally, the diaphragm cutting mechanism includes a cutting support, a translation structure, and a laser cutting head;

[0021] The translation structure is disposed on the cutting bracket and can drive the laser cutting head to move. When the laser cutting head moves, it is used to cut the diaphragm of the battery cell at the cutting station.

[0022] Optionally, the diaphragm cutting mechanism includes a lifting assembly and a limiting structure;

[0023] The lifting assembly is movably connected to the cutting bracket, and the limiting structure is fixed to the cutting bracket. The lifting assembly is used to lift the battery cell to fit against the limiting structure.

[0024] Optionally, the diaphragm cutting mechanism includes a light-shielding structure, which is disposed on both sides of the cutting station in the cutting direction.

[0025] According to a second aspect of the embodiments of this application, a battery cell recycling device is provided, which includes the diaphragm cutting device described in the first aspect.

[0026] One technical advantage of this application is:

[0027] This application provides a diaphragm cutting device, which includes a feeding mechanism for conveying battery cells to a cutting station; an alignment mechanism connected to the feeding mechanism for aligning the battery cells with the cutting station; and a diaphragm cutting mechanism for cutting the diaphragm of the battery cells at the cutting station to obtain two starting ends of the diaphragm on both sides of the cutting position, thereby improving the success rate and cut quality of the battery cell diaphragm cutting.

[0028] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0030] Figure 1 A schematic diagram of a diaphragm cutting device provided in one embodiment of this application;

[0031] Figure 2 A schematic diagram of the first alignment measurement structure of a diaphragm cutting device provided in one embodiment of this application;

[0032] Figure 3 A schematic diagram of the second alignment measurement structure of a diaphragm cutting device provided in one embodiment of this application;

[0033] Figure 4 A schematic diagram of the diaphragm cutting mechanism of a diaphragm cutting device provided in one embodiment of this application;

[0034] Figure 5 A schematic diagram of a battery cell for cutting by a diaphragm cutting device is provided as an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of a battery cell cut by a diaphragm cutting device according to one embodiment of this application.

[0036] in:

[0037] 1. Material conveying mechanism;

[0038] 2. Alignment mechanism;

[0039] 201. First alignment measuring structure; 2011. First positioning bracket; 2013. First driving component; 2014. First timing belt; 2015. First slider; 2016. First push plate;

[0040] 202. Second alignment measuring structure; 2021. Second positioning bracket; 2022. Lifting component; 2023. Second driving component; 2024. Second synchronous belt; 2025. Second slider; 2026. Second push plate;

[0041] 3. Diaphragm cutting mechanism; 301. Lifting assembly; 302. Limiting structure; 303. Translation structure; 304. Laser; 305. Light-shielding structure; 306. Laser cutting head;

[0042] 100. Battery cells. Detailed Implementation

[0043] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0044] The embodiments of this application will now be described in detail, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0045] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0046] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0049] Reference Figure 1 This application provides a diaphragm cutting device, which includes:

[0050] Material conveying mechanism 1 is used to convey battery cell 100 to the cutting station;

[0051] Alignment mechanism 2 is connected to material feeding mechanism 1 and is used to align battery cell 100 with the cutting station;

[0052] The diaphragm cutting mechanism 3 is used to cut the diaphragm of the battery cell 100 at the cutting station to obtain two starting ends of the diaphragm on both sides of the cutting position.

[0053] In this embodiment, see Figure 1 The feeding mechanism 1 can convey the battery cell 100 along the X direction. During the conveying process of the battery cell 100, the alignment mechanism 2 can adjust the position of the battery cell 100 in the X direction and / or Y direction to align the battery cell 100 with the cutting station, ensuring the accuracy of the position of the battery cell 100 at the cutting station and improving the efficiency of the diaphragm cutting mechanism 3 in cutting the diaphragm of the battery cell 100 at the cutting station.

[0054] The alignment mechanism 2, which adjusts the position of the battery cell 100 in the X direction, can rise and fall in the Z direction to avoid the battery cell during the battery cell 100 transportation process, and then fall to adjust the position of the battery cell during the X-direction alignment.

[0055] In this embodiment, the starting end of the diaphragm can be obtained by cutting the diaphragm using a diaphragm cutting mechanism. The diaphragm cutting mechanism can include a cutting head. When the cutting head moves, it can cut the outer diaphragm of the cell 100 at the cutting station to cut the diaphragm at the cutting position, so that two starting ends of the diaphragm can be obtained on both sides of the cutting position.

[0056] The conveyor belt of the material conveying mechanism 1 moves a distance of one workstation spacing each time. The battery cell passes through the alignment mechanism 2 and the diaphragm cutting mechanism 3 in sequence. The alignment mechanism 2 can realize the position adjustment of the battery cell and the measurement of its length and width. The diaphragm cutting mechanism 3 can cut the diaphragm on the surface of the battery cell so that two starting ends of the diaphragm can be obtained on both sides of the diaphragm cutting position.

[0057] When the diaphragm cutting device is working, the battery cells are fed onto the conveying mechanism 1. The conveyor belt of the conveying mechanism 1 operates intermittently, with each movement covering the distance of one workstation. When the battery cell moves to the alignment mechanism 2, the alignment mechanism 2 activates to push the battery cell to a centrally symmetrical position aligned with the cutting station, thereby achieving the centering and alignment of the battery cell 100.

[0058] In one embodiment, the cutting head can cut the outermost separator of the battery cell 100 at the cutting station while moving, that is, cut the outermost separator. One starting end of the cut outermost separator is at the far end of the battery cell winding and becomes a waste separator, which will fall off the battery cell; the other starting end is at the near end of the battery cell winding, that is, the separator that is still connected to the center of the battery cell.

[0059] In one embodiment, the cutting head, while moving, can cut the outermost and second-outermost separators of the battery cell 100 at the cutting station, that is, cut the outermost and second-outermost separators apart. One starting end of the cut outermost and second-outermost separators is at the far end of the battery cell winding and will fall off the battery cell; the other starting end of the outermost separator will also fall off the battery cell and be recycled as waste separator, while the other starting end of the second-outermost separator is at the near end of the battery cell winding, that is, the separator is still connected to the center of the battery cell. Moreover, the electrode between the outermost and second-outermost separators can be exposed, and after the electrode is separated from the separator, it can be reverse-wound and recycled.

[0060] In one embodiment, see Figure 5 and Figure 6 When the cutting head moves, it can cut the outermost, second outermost, and second second outermost (the second outermost layer is the membrane furthest from the outermost) separators of the battery cell 100 at the cutting station. This means it cuts the outermost, second outermost, and second second outermost separators. One starting end of the cut outermost and second outermost separators is at the far end of the battery cell winding and will fall off the cell. The other starting end of the outermost separator will also fall off the cell and be recycled as waste separator. The other starting end of the second outermost and second second outermost separators is at the near end of the battery cell winding, meaning it remains connected to the center of the cell. Furthermore, the electrode between the outermost and second outermost separators can be exposed and, after separating from the separator, can be unwound and recycled. Simultaneously, the electrode between the second outermost and second second outermost separators can be unwound and recycled along with the second outermost and second second second outermost separators.

[0061] The alignment mechanism 2 can align the battery cell 100 with the cutting station, ensuring the accuracy of the battery cell 100 in the cutting station. The diaphragm cutting mechanism 3 cuts the diaphragm of the battery cell 100 in the cutting station, which improves the success rate and cut quality of the diaphragm cutting of the battery cell, and does not damage the electrode sheets in the battery cell.

[0062] Furthermore, the alignment mechanism 2 and the diaphragm cutting mechanism 3 can achieve automated alignment and cutting of the battery cells, improve the production efficiency of diaphragm cutting in the battery cells, and increase the working cycle of the diaphragm cutting device.

[0063] The diaphragm cutting device provided in this application includes a feeding mechanism 1 for conveying the battery cell 100 to the cutting station; an alignment mechanism 2 connected to the feeding mechanism 1 for aligning the battery cell 100 with the cutting station; and a diaphragm cutting mechanism 3 for cutting the diaphragm of the battery cell 100 at the cutting station to obtain two starting ends of the diaphragm on both sides of the cutting position, thereby improving the success rate and cut quality of the battery cell diaphragm cutting.

[0064] In one embodiment, see Figure 1 and Figure 2 The alignment mechanism 2 includes a first alignment measuring structure 201, which includes a first positioning bracket 2011, a first driving member 2013 and two first push plates 2016. The first positioning bracket 2011 is disposed on the material conveying mechanism 1.

[0065] When the first drive unit 2013 is activated, the two first push plates 2016 can move closer to each other or further away from each other in a direction perpendicular to the cell conveying, so as to push the cell to align with the cutting station.

[0066] The spacing between the two first push plates 2016 corresponds to the size of the battery cell in the direction perpendicular to its transport.

[0067] In this embodiment, the alignment mechanism 2 can push the battery cell by a movable push plate or move the battery cell by a suction cup to adjust the position of the battery cell. When the battery cell deviates from the conveyor line aligned with the cutting station, the alignment mechanism 2 can adjust the position of the battery cell and align it with the cutting station to ensure the accuracy and efficiency of the diaphragm cutting mechanism 3 in cutting the diaphragm of the battery cell 100 at the cutting station.

[0068] When the first driving member 2013 is activated, it can drive the two first push plates 2016 to perform a centrally symmetrical movement. That is, the two first push plates 2016 can move closer or further away at the same time, so as to push the battery cell to achieve the centering and alignment of the battery cell. At the same time, the sensor inside the first alignment measuring structure 201 can detect the distance of the first push plate 2016's movement, thereby obtaining the size of the battery cell in the direction perpendicular to its conveying direction, which facilitates the diaphragm cutting mechanism 3 to control the range of cutting the diaphragm of the battery cell.

[0069] In one embodiment, see Figure 2 The first driving component 2013 includes a first timing belt 2014 and two first sliders 2015. The first timing belt 2014 is disposed on the first positioning bracket 2011 and can rotate on the first positioning bracket 2011.

[0070] The first push plate 2016 is connected to the first synchronous belt 2014 via the first slider 2015, and when the first synchronous belt 2014 rotates, the two first push plates 2016 can move closer to each other or further away from each other in the direction perpendicular to the cell delivery.

[0071] In this embodiment, when the battery cell moves to the first alignment measurement structure 201, the driving part in the first driving member 2013 drives the first synchronous belt 2014 to rotate, and then drives the two first push plates 2016 to move symmetrically along the first alignment measurement structure 201 through the first slider 2015, pushing the battery cell to the symmetrical position, realizing the Y-axis centering of the battery cell. When the centering is in place, the sensor inside the first alignment measurement structure 201 detects the distance of the first push plate 2016, and then obtains the height dimension of the battery cell (the dimension of the battery cell in the direction perpendicular to its delivery).

[0072] In this embodiment, the driving part of the first driving member 2013 can be a servo motor with an absolute encoder, which outputs a constant torque to the first synchronous belt 2014 through a synchronous pulley.

[0073] Two first push plates 2016 approach each other in a direction perpendicular to the cell conveying direction. After pushing the cell from both ends to align it with the cutting station, the number of rotations of the motor shaft can be obtained by reading the encoder data of the servo motor. Combined with the diameter of the first synchronous belt 2014, the distance moved by the first push plate 2016 can be calculated. The height of the cell can then be obtained by the distance between the two first push plates 2016. The height direction is perpendicular to the cell conveying direction. The measurement of the cell's dimensions in its conveying direction is similar, so as to obtain the stroke of the diaphragm cutting mechanism 3 for diaphragm cutting and ensure the accuracy of the cutting.

[0074] In one embodiment, see Figure 1 and Figure 3 The alignment mechanism 2 includes a second alignment measuring structure 202, which includes a second positioning bracket 2021, a second driving member 2023 and two second push plates 2026. The second positioning bracket 2021 is disposed on the material conveying mechanism 1.

[0075] When the second drive unit 2023 is activated, the two second push plates 2026 can move closer to or further away from each other in the direction of cell delivery to push the cell to align with the cutting station;

[0076] The spacing between the two second push plates 2026 corresponds to the size of the cell in its delivery direction.

[0077] In this embodiment, when the second driving member 2023 is activated, it can drive the two second push plates 2026 to perform a centrally symmetrical movement. That is, the two second push plates 2026 can move closer or further away at the same time, so as to push the battery cell to center the battery cell through the second push plates 2026. At the same time, the sensor inside the second alignment measurement structure 202 detects the distance of the movement of the second push plates 2026, thereby obtaining the size of the battery cell in its conveying direction, which facilitates the diaphragm cutting mechanism 3 to control the range of cutting the diaphragm of the battery cell.

[0078] In one embodiment, see Figure 3 The second driving component 2023 includes a second timing belt 2024 and two second sliders 2025. The second timing belt 2024 is disposed on the second positioning bracket 2021 and can rotate on the second positioning bracket 2021.

[0079] The second pusher plate 2026 is connected to the second synchronous belt 2024 via the second slider 2025, and when the second synchronous belt 2024 rotates, the two second pusher plates 2026 can move closer to or further away from each other in the direction of cell delivery.

[0080] In this embodiment, when the battery cell moves to the second alignment measurement structure 202, the driving part in the second driving member 2023 drives the second synchronous belt 2024 to rotate, and then drives the two second push plates 2026 to move symmetrically along the second alignment measurement structure 202 through the second slider 2025, pushing the battery cell to the symmetrical position, realizing the centering of the battery cell in the X direction. When the centering is in place, the sensor inside the second alignment measurement structure 202 detects the distance of the movement of the second push plate 2026, and then obtains the width dimension of the battery cell (the dimension of the battery cell in its conveying direction).

[0081] In this embodiment, the two second push plates 2026 move closer to each other in the direction of cell delivery to push the cell from the front and rear sides to align it with the cutting station, so as to keep the spacing between adjacent cells consistent in the direction of cell delivery, so that the cell can accurately stop at the cutting station.

[0082] In one embodiment, see Figure 1 The second alignment measurement structure 202 includes a lifting component 2022 and a second synchronous belt 2024 disposed on the moving plate of the second positioning bracket 2021. The lifting component 2022 is used to drive the moving plate away from or close to the material conveying mechanism 1.

[0083] In this embodiment, the lifting component 2022 can be raised during the cell transport process to avoid the cells during transport; and after the cells are in place, such as when the cells reach or approach the cutting station, the lifting component 2022 is lowered so that the cells can be positioned and sized in the direction of cell transport by the two second push plates 2026.

[0084] In one embodiment, see Figure 4 The diaphragm cutting mechanism 3 includes a cutting bracket, a translation structure 303, and a laser cutting head 306;

[0085] The translation structure 303 is set on the cutting bracket and can drive the laser cutting head 306 to move. When the laser cutting head 306 moves, it is used to cut the diaphragm of the battery cell 100 at the cutting station.

[0086] In this embodiment, the translation structure 303 can drive the laser cutting head 306 to move along the Y direction, while the laser 304 emits light to the laser cutting head 306, so that the laser cutting head 306 can realize laser cutting of the cell surface membrane. No small tear will occur during membrane cutting, avoiding the risk of membrane breakage due to cut quality problems, and ensuring the quality and efficiency of membrane cutting mechanism 3 in cutting the membrane.

[0087] In one embodiment, see Figure 4 The diaphragm cutting mechanism 3 includes a lifting component 301 and a limiting structure 302;

[0088] The lifting component 301 is movably connected to the cutting bracket, and the limiting structure 302 is fixed to the cutting bracket. The lifting component 301 is used to lift the battery cell to fit against the limiting structure 302.

[0089] In this embodiment, the lifting component 301 is used to lift the battery cell so that the upper surface of the battery cell is in close contact with the limiting structure 302, and the laser cutting obtains a suitable focal length.

[0090] The translation structure 303 is set on the cutting bracket and can drive the laser cutting head 306 to move. When the laser cutting head 306 moves, it is used to cut the diaphragm of the battery cell 100 at the cutting station.

[0091] In this embodiment, the lifting assembly 301 can lift the battery cell 100 so that its upper surface is attached to the limiting structure 302, ensuring that the focal length of the laser is consistent when the diaphragm cutting mechanism 3 performs laser cutting. At the same time, the distance sensor on the lifting assembly 301 can measure the height of the lifting of the battery cell 100 in order to calculate the thickness of the battery cell.

[0092] In this embodiment, when the diaphragm cutting mechanism 3 performs laser cutting, the laser 304 generates a laser beam, which is transmitted to the laser cutting head 306 through the optical path assembly. The translation structure 303 drives the laser cutting head 306 to move laterally above the battery cell 100, thereby cutting the upper surface diaphragm of the battery cell 100 to obtain two starting ends of the diaphragm on both sides of the cutting position, which facilitates the battery cell to unfold by pulling the starting ends.

[0093] In one embodiment, see Figure 4 The diaphragm cutting mechanism 3 includes a light-shielding structure 305, which is disposed on both sides of the cutting station in the cutting direction.

[0094] In this embodiment, the light-shielding structure 305 is used to block the laser beyond the range of the battery cell, protecting the conveyor belt of the feeding mechanism 1 from being cut by the laser.

[0095] When the battery cell moves to the diaphragm cutting mechanism 3, the lifting component 301 is activated, lifting the battery cell so that its upper surface is in close contact with the upper limiting structure 302, placing the diaphragm on the surface of the battery cell within the laser focal length range. The light-shielding structure 305 retracts inward, pressing the light-shielding structure 305 against both sides of the battery cell in the Y direction, blocking the laser from exceeding the range of the battery cell and preventing damage to the conveyor belt from the laser. The translation structure 303 drives the laser cutting head 306 to move according to the battery cell height measured by the first alignment measuring structure 201, and at the same time, the laser 304 emits light to cut the diaphragm on the surface of the battery cell. Then, the lifting component 301 descends, dropping the battery cell back onto the conveyor belt to continue to the next work station.

[0096] This application provides a battery cell recycling device, which includes the diaphragm cutting device described above.

[0097] This battery cell recycling equipment can realize processes such as battery cell feeding, separator cutting, electrode separation, and classified collection, thereby improving the efficiency of battery cell recycling. At the same time, the battery cell recycling equipment can be equipped with dust removal and purification devices to remove harmful impurities such as dust and waste gas generated throughout the process, ensuring the environmental friendliness of the battery cell recycling process.

[0098] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A diaphragm cutting device, characterized in that, include: A feeding mechanism (1) is used to transport the battery cell (100) to the cutting station; Alignment mechanism (2), which is connected to the feeding mechanism (1) and is used to align the battery cell (100) with the cutting station; The diaphragm cutting mechanism (3) is used to cut the diaphragm of the battery cell (100) in the cutting position.

2. The diaphragm cutting device according to claim 1, characterized in that, The alignment mechanism (2) includes a first alignment measuring structure (201), which includes a first positioning bracket (2011), a first driving member (2013), and two first push plates (2016). The first positioning bracket (2011) is disposed on the material conveying mechanism (1). When the first drive unit (2013) is activated, the two first push plates (2016) can move closer to or further away from each other in a direction perpendicular to the cell delivery, so as to push the cell to align with the cutting station; The spacing between the two first push plates (2016) corresponds to the size of the cell in the direction perpendicular to its delivery.

3. The diaphragm cutting device according to claim 2, characterized in that, The first driving component (2013) includes a first timing belt (2014) and two first sliders (2015). The first timing belt (2014) is disposed on the first positioning bracket (2011) and is rotatable on the first positioning bracket (2011). The first pusher plate (2016) is connected to the first synchronous belt (2014) via the first slider (2015), and when the first synchronous belt (2014) rotates, the two first pusher plates (2016) can move closer to each other or further away from each other in a direction perpendicular to the cell delivery.

4. The diaphragm cutting device according to claim 1, characterized in that, The alignment mechanism (2) includes a second alignment measuring structure (202), which includes a second positioning bracket (2021), a second driving member (2023), and two second push plates (2026). The second positioning bracket (2021) is disposed on the material conveying mechanism (1). When the second drive member (2023) is activated, the two second push plates (2026) can move closer to or further away from each other in the direction of cell delivery to push the cell to align with the cutting station; The spacing between the two second push plates (2026) corresponds to the size of the cell in its delivery direction.

5. The diaphragm cutting device according to claim 4, characterized in that, The second driving member (2023) includes a second timing belt (2024) and two second sliders (2025). The second timing belt (2024) is disposed on the second positioning bracket (2021) and is rotatable on the second positioning bracket (2021). The second pusher plate (2026) is connected to the second synchronous belt (2024) via the second slider (2025), and when the second synchronous belt (2024) rotates, the two second pusher plates (2026) can move closer to or further away from each other in the direction of cell delivery.

6. The diaphragm cutting device according to claim 5, characterized in that, The second alignment measurement structure (202) includes a lifting component (2022), and the second synchronous belt (2024) is disposed on the moving plate of the second positioning bracket (2021). The lifting component (2022) is used to drive the moving plate away from or closer to the material conveying mechanism (1).

7. The diaphragm cutting device according to claim 1, characterized in that, The diaphragm cutting mechanism (3) includes a cutting bracket, a translation structure (303), and a laser cutting head (306); The translation structure (303) is disposed on the cutting bracket and can drive the laser cutting head (306) to move. When the laser cutting head (306) moves, it is used to cut the diaphragm of the battery cell (100) at the cutting station.

8. The diaphragm cutting device according to claim 7, characterized in that, The diaphragm cutting mechanism (3) includes a lifting assembly (301) and a limiting structure (302); The lifting assembly (301) is movably connected to the cutting bracket, and the limiting structure (302) is fixed to the cutting bracket. The lifting assembly (301) is used to lift the battery cell to fit against the limiting structure (302).

9. The diaphragm cutting device according to claim 7, characterized in that, The diaphragm cutting mechanism (3) includes a light-shielding structure (305), which is disposed on both sides of the cutting station in the cutting direction.

10. A battery cell recycling device, characterized in that, Includes the diaphragm cutting device according to any one of claims 1-9.

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