A pole cleaning device

Abstract

The utility model relates to the technical field of electric core manufacturing discloses a kind of pole washing device, including laser cleaning unit, two independently set dust hood, respectively with the one-to-one correspondence setting of two pole of the electric core to be processed, two dust hood can be moved to adjust spacing, conveying unit is used to drive the electric core to be processed along preset path moves, laser cleaning unit and dust removal unit are evenly arranged on preset path, the utility model adopts split type dust removal structure design, and two independent dust hoods are equipped for the pole of electric core, can accurately align the smoke and chippings generated by single pole simultaneously carry out cleaning operation, wind speed attenuation rate is small, and dust escape can be effectively captured, adopt annular guide rail integrated station design, realize seamless link of process, reduce repeated positioning, realize synchronous operation, greatly reduce the transfer time between each process, improve the production rate of PACK preparation.

Description

Technical Field

[0001] This utility model relates to the field of battery cell manufacturing technology, and in particular to a terminal cleaning device. Background Technology

[0002] In today's lithium-ion battery pack manufacturing field, the battery cell, as a core component, directly determines the pack's current-carrying capacity, mechanical strength, and most importantly, safety performance through the welding quality between its terminals and busbars. The surface condition of the cell terminals has a crucial impact on the quality of the welding interface between the terminals and busbars; removing surface oxide layers and contaminants is a fundamental prerequisite for successful and durable welding and bonding. As battery pack technology continues to evolve towards higher energy density, higher stability, and longer lifespan, increasingly stringent requirements are being placed on the cleaning process of the cell terminals.

[0003] To achieve environmentally friendly and efficient cleaning standards, the industry generally adopts high-energy, high-precision, non-contact laser cleaning methods to treat the surface of battery cell terminals. This can accurately remove surface contaminants and oxide layers, reduce defects such as welding spatter, porosity, and incomplete soldering, and effectively improve welding quality and reduce costs.

[0004] Currently, laser cleaning institutions in the industry face the following problems in actual production processes: 1. Laser cleaning generates tiny dust particles, which, if not cleaned promptly, can pose multiple safety hazards. The negative pressure dust removal devices disclosed in patents CN118180051A and CN114733853A both employ a single-unit dust hood design to cover the entire battery cell. The airflow velocity is high in the middle and low at the ends of the dust hood, while the battery cell electrodes are located on either side of the dust removal port. Due to the attenuation of airflow velocity, the dust residue rate is high, resulting in poor actual dust removal performance. Patent CN220760365U achieves simultaneous dust removal in the laser emission direction by setting a dust removal port directly below the galvanometer and connecting it to a suction pipe, which is connected to an external dust removal device. While this laser cleaning mechanism design achieves full coverage of the battery cell's bipolar region through the addition of a guide rail moving mechanism due to the smaller dust removal port diameter, the equipment structure is complex, costly, and its actual working cycle is more than twice that of a fixed laser cleaning mechanism.

[0005] 2. When switching between different lithium battery module production models, the difference in cell terminal spacing necessitates replacing the existing single-cell dust collector with a larger one to ensure effective cell compatibility. The terminal airflow velocity decreases significantly with increasing dust collector size. Therefore, a higher-powered dust collector is required to meet dust removal requirements, leading to a substantial increase in dust collection equipment costs and energy consumption.

[0006] 3. The independent workstation design results in low production line space utilization. Separation from other processes (such as cell disassembly and assembly, cell adhesive application, etc.) significantly increases production cycle time due to the transfer between processes. The cells need to be picked up, positioned, cleaned, and then transferred by a robotic arm, which seriously drags down the overall production capacity of the line. Utility Model Content

[0007] The purpose of this invention is to provide an electrode cleaning device to solve the problems in the prior art.

[0008] This utility model provides an electrode cleaning device, comprising: A laser cleaning unit is used to output laser energy along the axial direction of the electrode post to clean the surface of the electrode post. The dust removal unit includes a bracket and two independently set dust removal hoods. The two dust removal hoods are respectively set one-to-one with the two poles of the battery cell to be processed, and are used to adsorb the dust generated by the corresponding poles during the laser cleaning process. The two dust removal hoods can be moved relative to each other to adjust the distance between them. The conveying unit is used to drive the battery cell to be processed to move along a preset path, and the laser cleaning unit and the dust removal unit are both arranged on the preset path.

[0009] In the electrode cleaning device described above, preferably, the working area at the focal point of the laser cleaning unit is greater than or equal to the area of ​​the upper surface of the battery cell to be processed. The laser cleaning unit includes a fiber laser, a galvanometer, a field lens, and an air knife arranged sequentially from top to bottom, wherein the air knife is detachably installed below the field lens.

[0010] In the electrode cleaning device described above, preferably, the electrode cleaning device further includes a displacement adjustment unit connected to the laser cleaning unit, for driving the laser cleaning unit to move along a first direction, a second direction, and a third direction that are perpendicular to each other.

[0011] In the electrode cleaning device described above, preferably, the displacement adjustment unit includes a base, a first support frame, a second support frame, and a carrier plate. The first support frame is movably connected to the base and can move relative to the base in a second direction. A guide is provided on the side of the first support frame, and the second support frame is guided and cooperated with the guide. The second support frame can move on the guide in a first direction. The carrier plate is movably disposed on the second support frame for supporting the laser cleaning unit and can move relative to the second support frame in a third direction.

[0012] In the electrode cleaning device described above, preferably, the first support frame has a first assembly part on the side facing the base, and the first assembly part includes any one of a hole, a groove, and a positioning pin.

[0013] In the electrode cleaning device described above, preferably, the second support frame is provided with a guide protrusion, the bearing plate is provided with a guide groove, the guide protrusion is slidably connected to the guide groove, and the second support frame is also provided with a second assembly part, the second assembly part including any one of a hole, a groove, and a positioning pin.

[0014] In the electrode cleaning device described above, preferably, the dust removal unit further includes a sliding block and an adjusting plate. The sliding block is movably connected to the bracket along a first direction, and the adjusting plate is movably disposed on the sliding block along a second direction. The adjusting plate can move relative to the sliding block along a third direction. The dust removal hoods are symmetrically disposed at both ends of the adjusting plate along the second direction, and the two dust removal hoods can move relative to each other on the adjusting plate along the second direction.

[0015] In the electrode cleaning device described above, preferably, the dust removal hood includes a dust removal port and a tube body. The dust removal port faces the radial direction of the electrode, and the center height of the dust removal port is 2-5 cm higher than the surface of the electrode. The tube body adopts a bent tube structure and is bent at a right angle. One end of the two tube bodies is connected to the corresponding dust removal port, and the other end is connected to the negative pressure mechanism.

[0016] As described above, the electrode cleaning device preferably further includes a vision inspection unit for photographing and inspecting the battery cell to be processed after it has been cleaned by the laser cleaning unit. The vision inspection unit includes a driving component and a camera. The driving component drives the camera to move closer to or away from the battery cell to be processed, and the camera is used to photograph the electrode.

[0017] In the electrode cleaning device described above, preferably, the conveying unit includes an annular guide rail and clamping stations, the clamping stations being spaced apart on the annular guide rail for clamping the battery cell to be processed, and the annular guide rail for conveying the battery cell to be processed.

[0018] Compared with the prior art, this utility model adopts a split dust removal structure design, equipping the battery cell pole with two independent dust removal hoods, which can accurately target the smoke and debris generated by a single pole for simultaneous cleaning. Compared with the traditional single-unit dust suction port, this device has a small wind speed attenuation rate, can effectively capture dust escape, avoid secondary pollution, and the split dust suction port can be adjusted for different battery cell sizes or pole layouts, reducing the cost of dust removal equipment and energy consumption. The cell pretreatment section of the PACK production line adopts a ring-shaped guide rail integrated station design. By integrating laser cleaning with cell loading, cell adhesive application, and cell stacking processes in series on the ring-shaped guide rail, seamless process connection is achieved, reducing repetitive positioning. This allows for precise matching of laser cleaning time with the cycle time of other stations during laser cleaning, enabling synchronous operation and significantly reducing transfer time between processes, thereby increasing the production rate of PACK manufacturing. Furthermore, integrating the laser cleaning station in series on the ring-shaped guide rail reduces equipment footprint and production costs.

[0019] The surface condition of the electrode post after cleaning is monitored in real time by an optical camera monitoring device, and the data is recorded and fed back to avoid defects such as spatter, blasting and pores in the PACK welding caused by unqualified electrode post surfaces flowing into subsequent processes. Attached Figure Description

[0020] Figure 1 This is a perspective view of the electrode cleaning device provided in an embodiment of this utility model; Figure 2 This is a partial enlarged view of the electrode cleaning device provided in an embodiment of this utility model; Figure 3 This is a partially enlarged view of the electrode cleaning device provided in an embodiment of this utility model from another direction; Figure 4 This is a layout diagram of the laser cleaning unit, dust removal unit, and visual inspection unit provided in an embodiment of this utility model; Figure 5 This is a perspective view of the laser cleaning unit and displacement adjustment unit provided in an embodiment of the present invention; Figure 6 This is a partially enlarged view of the displacement adjustment unit provided in an embodiment of this utility model; Figure 7 This is a perspective view of the dust removal unit provided in an embodiment of this utility model; Figure 8 This is a partial enlarged view of the dust removal unit provided in an embodiment of this utility model; Figure 9 This is a perspective view of the visual inspection unit provided in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures: 10. Laser cleaning unit; 100. Working area; 11. Fiber laser; 12. Galvanometer; 13. Field lens; 14. Air knife; 20. Dust removal unit; 21. Support bracket; 22. Dust removal hood; 220. Dust removal port; 221. Pipe body; 222. Fourth oblong hole; 23. Sliding block; 24. Adjusting plate; 240. Third oblong hole; 30. Conveying unit; 31. Circular guide rail; 32. Clamping station; 40. Displacement adjustment unit; 41. Base; 42. First support frame; 420. First oblong hole; 421. First adjusting bolt; 43. Second support frame; 44. Bearing plate; 440. Guide groove; 441. Second oblong hole; 442. Second adjusting bolt; 443. Fiber optic bracket; 45. Guide component; 50. Vision inspection unit; 51. Drive unit; 52. Camera; 53. Stand; 54. Slide table; 55. Mounting bracket; 60. Battery cells to be processed; D1 - First direction; D2 - Second direction; D3 - Third direction. Detailed Implementation

[0022] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] See Figure 1-4 As shown, this embodiment provides an electrode cleaning device, including a laser cleaning unit 10, a dust removal unit 20, and a conveying unit 30, wherein: The laser cleaning unit 10 is used to output laser energy along the axial direction of the electrode post to clean the surface of the electrode post; the dust removal unit 20 includes a bracket 21 and two independently arranged dust removal hoods 22, which are respectively arranged one-to-one with the two electrodes of the battery cell 60 to be processed, and are used to adsorb the dust generated by the corresponding electrodes during the laser cleaning process. The two dust removal hoods 22 can move relative to each other to adjust the spacing; the conveying unit 30 is used to drive the battery cell 60 to be processed to move along a preset path, and the laser cleaning unit 10 and the dust removal unit 20 are both arranged on the preset path.

[0024] In the embodiments provided in this application, a split-type dust removal structure design is adopted, equipping the battery cell terminals with two independent dust removal hoods 22. This allows for precise cleaning of smoke and debris generated by a single terminal simultaneously, avoiding the drawbacks of traditional single-unit dust removal hoods 22 that cover both terminals at the same time, resulting in high wind speeds in the middle and low wind speeds at both ends. The device exhibits a low terminal wind speed attenuation rate, effectively capturing escaping dust and preventing secondary pollution caused by dust falling onto the terminals. Furthermore, the split-type suction port can be adjusted for different battery cell sizes or terminal layouts. Compared to the single-unit dust removal structure design with high-power centralized dust removal, the split system operates only at a single point, significantly reducing the cost and energy consumption of the dust removal equipment, and adapting to the changing needs of battery module production. In addition, because the dust removal of a single unit by the split-type dust removal hood 22 is more concentrated, it is not necessary to increase the power of the dust removal equipment to achieve the preset dust removal intensity, further reducing equipment energy consumption.

[0025] Further, see Figure 1-3 As shown, this embodiment integrates the laser cleaning unit 10, the dust removal unit 20, and the conveying unit 30 into one unit. The conveying unit 30 conveys the battery cells along a preset path. The laser cleaning unit 10 and the dust removal unit 20 are correspondingly arranged on the preset path, which can connect the preceding and following processes such as battery cell unpacking and assembly, electrode cleaning, and battery cell adhesive application. It eliminates the need for separate workstations and robotic arms to perform repetitive actions such as gripping, positioning, and transferring, reducing the space occupied by separate workstations, resulting in a more compact production line layout and shorter inter-process turnaround time, thus meeting the needs of high-capacity PACK production lines. The dust removal unit 20 is used to promptly adsorb dust generated during electrode cleaning. Therefore, the laser cleaning unit 10 and the dust removal unit 20 can be arranged opposite each other on both sides of the conveying unit 30. The laser cleaning unit 10 performs laser cleaning from the electrode axis, while the dust removal unit 20 adsorbs dust from the opposite direction, preventing dust from escaping to the surrounding area or re-adhering to adjacent cleaned battery cells.

[0026] Traditional laser cleaning units 10 focus only on a single electrode at their focal point, using a drive device to move back and forth to clean two electrodes. In some embodiments of this application, see [link to relevant documentation]. Figure 4-5 As shown, the working area 100 at the focal point of the laser cleaning unit 10 is greater than or equal to the area of ​​the upper surface of the battery cell 60 to be processed. The laser cleaning unit 10 includes a fiber laser 11, a galvanometer 12, a field lens 13, and an air knife 14 arranged sequentially from top to bottom. The air knife 14 is detachably mounted below the field lens 13. The working area 100 at the focal point of the laser cleaning unit 10 covers or even extends beyond the upper surface of the battery cell, eliminating the need for the entire unit to be moved to clean two poles separately, as is the case with traditional devices. The galvanometer 12 can quickly and accurately control the laser irradiation path, and the field lens 13 can focus the laser beam and expand the effective working area 100, enabling continuous cleaning of multiple poles and improving cleaning efficiency. The air knife 14 protects the field lens 13 by generating a powerful air blade to prevent dust particles generated during cleaning from contaminating the lens of the field lens 13. It should be noted that the working area 100 shown in the figure is for illustrative purposes only and is not a physical entity.

[0027] See Figure 5 As shown, in order to enable the laser cleaning unit 10 to be adapted to the cleaning of battery cell terminals of different sizes, in some embodiments of this application, the terminal cleaning device further includes a displacement adjustment unit 40 connected to the laser cleaning unit 10, which is used to drive the laser cleaning unit 10 to move along a first direction D1, a second direction D2, and a third direction D3 that are perpendicular to each other. In this embodiment, the first direction D1 is the direction of gravity or the Y-axis, and the second direction D2 and the third direction D3 are the X-axis and the Z-axis, respectively. That is, the laser cleaning unit 10 can achieve height, left-right, and front-back adjustment.

[0028] In one possible implementation, see [link to implementation details]. Figure 5As shown, the displacement adjustment unit 40 includes a base 41, a first support frame 42, a second support frame 43, and a carrier plate 44. The first support frame 42 is movably connected to the base 41 and can move relative to the base 41 along a second direction D2. A guide member 45 is provided on the side of the first support frame 42, and the second support frame 43 is guided and engaged with the guide member 45. The second support frame 43 can move on the guide member 45 along a first direction D1. The carrier plate 44 is movably mounted on the second support frame 43 and is used to support the laser cleaning unit 10. The carrier plate 44 can move relative to the second support frame 43 along a third direction D3. The carrier plate 44 is connected to the laser cleaning unit 10, and through the multi-directional position adjustment of the laser cleaning unit 10, it ensures that the cleaning range of the laser beam can completely cover the electrode area of ​​the battery cell during cleaning, and that the laser focal plane and the electrode plane remain coplanar, in order to achieve the best cleaning effect when changing different battery cell types.

[0029] See Figure 5 As shown, in this embodiment, the first support frame 42 can be an L-shaped frame, with the vertical section used to connect the guide member 45 and the horizontal section used to connect the base 41. The guide member 45 can be a vertical module, such as a linear slide rail or linear slide table. Its fixed end is connected to the first support frame 42, and its movable end is installed to the second support frame 43. The second support frame 43 is a triangular support frame, which can offset the bearing plate 44 to the side of the first support frame 42 to avoid component interference.

[0030] The first support frame 42 has a first assembly part on the side facing the base 41. The first assembly part includes any one of a hole, a groove, or a positioning pin. The first assembly part adopts an oblong hole. Multiple first oblong holes 420 extending along the second direction D2 are symmetrically opened on the horizontal section of the first support frame 42 and bolted to the base 41. A first adjusting bolt 421 is installed in the center of the base 41 and is threadedly connected to the first support frame 42 to realize the adjustment of the second direction D2.

[0031] See Figure 6 As shown, the second support frame 43 is provided with a guide protrusion, and the bearing plate 44 is provided with a guide groove 440. The guide protrusion and the guide groove 440 are slidably connected, and the second support frame 43 is also provided with a second assembly part. The second assembly part also adopts a waist-shaped hole. The bearing plate 44 is symmetrically provided with a plurality of second waist-shaped holes 441 extending along the third direction D3, which are bolted to the plane of the second support frame 43. The guide groove 440 is opened in the middle of the bearing plate 44. The guide protrusion on the second support frame 43 is embedded in the guide groove 440, and a second adjusting bolt 442 is installed in the center. The second adjusting bolt 442 is connected to the bearing plate 44 to realize the adjustment of the third direction D3. Furthermore, an optical fiber bracket 443 is also fixedly connected to the bearing plate 44, which can adjust the fixed position of the optical fiber bundle according to the usage, so as to avoid damage to the optical fiber due to excessive bending.

[0032] See Figure 7 As shown, in some embodiments of this application, the dust removal unit 20 further includes a sliding block 23 and an adjusting plate 24. The sliding block 23 is movably connected to the support 21 along a first direction D1. The adjusting plate 24 is movably disposed on the sliding block 23 along a second direction D2, and the adjusting plate 24 can move relative to the sliding block 23 along a third direction D3. Dust removal hoods 22 are symmetrically disposed at both ends of the adjusting plate 24 along the second direction D2, and the two dust removal hoods 22 can move relative to each other on the adjusting plate 24 along the second direction D2. The dust removal unit 20 can also move in multiple directions, thereby cooperating with the laser cleaning unit 10 to remove dust while cleaning, preventing dust escape and improving the cleaning effect.

[0033] See Figure 8 As shown, specifically, the sliding block 23 is sleeved on the vertical axis of the bracket 21 and bolted to the bracket 21. The sliding block 23 can slide along the axial direction of the bracket 21 to adjust the height difference between the dust cover 22 and the electrode post, so that it faces the electrode post precisely. The adjusting plate 24 is symmetrically provided with a third waist-shaped hole 240 extending along the third direction D3, which is bolted to the sliding block 23. The two dust covers 22 can be adjusted as a whole to move closer to or further away from the electrode post. The two dust covers 22 are symmetrically arranged on both sides of the adjusting plate 24. Whether moving along the first direction D1 or the third direction D3, they can be ensured to move synchronously. In addition, a fourth waist-shaped hole 222 extending along the second direction D2 is provided on the connection part between the dust cover 22 and the adjusting plate 24, which is bolted to the adjusting plate 24. The distance between the two dust covers 22 can be adjusted to accommodate battery cells of different sizes.

[0034] In this embodiment, see Figure 7 As shown, the dust hood 22 includes a dust collection port 220 and a tube body 221. The dust collection port 220 faces the radial direction of the electrode post, and its center height is 2-5 cm higher than the surface of the electrode post. The tube body 221 adopts a bent tube structure with a right-angle bend. One end of each tube body 221 is connected to the corresponding dust collection port 220, and the other end is connected to a negative pressure mechanism (not shown in the figure). The two tube bodies 221 can be connected to the dust collection pipeline through a 30° T-junction. The external negative pressure mechanism extracts the fine dust generated during the cleaning of the electrode post, ensuring the surface cleanliness of the electrode post after cleaning. The center height of the dust collection port 220 being 2-5 cm higher than the surface of the electrode post improves dust collection efficiency and capture rate, thereby ensuring that defects such as spatter, blasting, and molten pool porosity do not occur due to dust residue on the electrode post surface during subsequent welding processes, thus improving the yield rate of PACK package preparation.

[0035] To further improve the pass rate of subsequent welding, see Figure 1-4 and Figure 9As shown, in some embodiments of this application, the electrode cleaning device further includes a vision inspection unit 50, used for photographing and inspecting the battery cell 60 to be processed after it has been cleaned by the laser cleaning unit 10. The vision inspection unit 50 includes a drive unit 51 and a camera 52. The drive unit 51 is used to drive the camera 52 to move closer to or away from the battery cell 60 to be processed, and the camera is used to photograph the electrode. The vision inspection unit 50 is located after the dust removal unit 20 along a preset path and is mounted on one side of the conveying unit 30 via a stand 53. The camera 52 is mounted on the stand 53 via a slide table 54 or a slide rail. The drive unit 51 can be a cylinder, hydraulic cylinder, linear guide rail, etc., to drive the camera 52 to move back and forth on the slide table 54, photograph the two electrodes that have been cleaned, record and feed back the data, so as to avoid defects such as spatter, blasting spots and pores in the PACK package welding caused by the surface of unqualified electrodes flowing into subsequent processes. The drive unit 51 can adjust the travel of the camera 52 on the slide table 54. Furthermore, the camera 52 can be slidably connected to the slide table 54 via the mounting bracket 55, and the position of the camera 52 on the mounting bracket 55 can be adjusted to adapt to the needs of different battery cells, so as to ensure that clear pole images are captured.

[0036] In one possible implementation, see [link to implementation details]. Figure 2-3 As shown, the conveying unit 30 includes an annular guide rail 31 and clamping stations 32. The clamping stations 32 are spaced apart on the annular guide rail 31 and are used to clamp the battery cells 60 to be processed. The annular guide rail 31 is used to convey the battery cells 60 to be processed. The displacement adjustment unit 40, which carries the laser cleaning unit 10, is arranged on the side of the annular guide rail 31. The dust removal unit 20 and the vision inspection unit 50 are arranged inside the annular guide rail 31. The dust removal unit 20 is arranged opposite to the laser cleaning unit 10 and removes dust from the electrode surface while cleaning. The vision inspection unit 50 is arranged on the side of the dust removal unit 20 and is used to photograph and inspect the cleaned battery cells. The clamping stations 32 can adjust the clamping size to support and clamp the battery cells and keep the battery cells relatively fixed during the cleaning process.

[0037] Based on the above embodiments, the working principle of the electrode cleaning device of this utility model is as follows: The clamping station 32 is driven by the ring guide rail 31 to make continuous cyclic movement. When the battery cell moves with the ring guide rail 31 to the cleaning station corresponding to the laser cleaning unit 10, the clamping station 32 is mechanically limited and fixed. The laser cleaning component automatically triggers the laser to continuously clean the two pole pieces. During the cleaning process, the dust removal unit 20 continuously adsorbs the dust on the surface of the two pole pieces through the two dust removal covers 22.

[0038] After cleaning, the battery cell moves along the annular guide rail 31 to the corresponding inspection station of the vision inspection unit 50 and is fixed. The driving component 51 drives the camera 52 to take pictures of the two cleaned terminals on the annular guide rail 31, record and feed back the data to prevent unqualified battery cells from flowing into the subsequent process.

[0039] It should be noted that this device, based on the annular guide rail 31, can integrate laser cleaning with processes such as cell assembly, cell adhesive application, and cell stacking in series, achieving seamless connection between multiple processes in the cell pretreatment stage. This reduces repetitive positioning, allowing the laser cleaning time to be precisely matched with the cycle time of other stations during the laser cleaning process, enabling synchronous operation. This significantly reduces the transfer time between processes, improves the production rate of PACK preparation, and integrates the cleaning and testing stations in series on the annular guide rail 31, reducing the equipment's footprint and production costs. However, those skilled in the art should understand that the annular guide rail 31 does not imply that the cells are transported in a circular manner. After all processes along the pre-set path are completed, the finished cells can be removed from the annular guide rail 31 by a robotic arm or similar device.

[0040] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A pole cleaning device, characterized in that, include: A laser cleaning unit is used to output laser energy along the axial direction of the electrode post to clean the surface of the electrode post. The dust removal unit includes a bracket and two independently set dust removal hoods. The two dust removal hoods are respectively set one-to-one with the two poles of the battery cell to be processed, and are used to adsorb the dust generated by the corresponding poles during the laser cleaning process. The two dust removal hoods can be moved relative to each other to adjust the distance between them. The conveying unit is used to drive the battery cell to be processed to move along a preset path, and the laser cleaning unit and the dust removal unit are both arranged on the preset path.

2. The electrode cleaning device according to claim 1, characterized in that, The working area at the focal point of the laser cleaning unit is greater than or equal to the area of ​​the upper surface of the battery cell to be processed. The laser cleaning unit includes a fiber laser, a galvanometer, a field mirror, and an air knife arranged sequentially from top to bottom. The air knife is detachably installed below the field mirror.

3. The electrode cleaning device according to claim 1, characterized in that, The electrode cleaning device also includes a displacement adjustment unit connected to the laser cleaning unit, used to drive the laser cleaning unit to move along a first direction, a second direction and a third direction that are perpendicular to each other.

4. The electrode cleaning device according to claim 3, characterized in that, The displacement adjustment unit includes a base, a first support frame, a second support frame, and a bearing plate. The first support frame is movably connected to the base and can move relative to the base in a second direction. A guide is provided on the side of the first support frame, and the second support frame is guided and cooperated with the guide. The second support frame can move on the guide in a first direction. The bearing plate is movably disposed on the second support frame and is used to support the laser cleaning unit. The bearing plate can move relative to the second support frame in a third direction.

5. The electrode cleaning device according to claim 4, characterized in that, The first support frame has a first assembly part on the side facing the base, and the first assembly part includes any one of a hole, a groove, and a positioning pin.

6. The electrode cleaning device according to claim 4, characterized in that, The second support frame is provided with a guide protrusion, and the bearing plate is provided with a guide groove. The guide protrusion is slidably connected to the guide groove. The second support frame is also provided with a second assembly part, which includes any one of a hole, a groove, or a positioning pin.

7. The electrode cleaning device according to claim 1, characterized in that, The dust removal unit further includes a sliding block and an adjusting plate. The sliding block is movably connected to the bracket along a first direction. The adjusting plate is movably disposed on the sliding block along a second direction and can move relative to the sliding block along a third direction. The dust removal hoods are symmetrically disposed at both ends of the adjusting plate along the second direction, and the two dust removal hoods can move relative to each other on the adjusting plate along the second direction.

8. The electrode cleaning device according to claim 1, characterized in that, The dust removal hood includes a dust removal port and a tube body. The dust removal port faces the radial direction of the pole post, and the center height of the dust removal port is 2-5cm higher than the surface of the pole post. The tube body adopts a bent tube structure and is bent at a right angle. One end of the two tube bodies is connected to the corresponding dust removal port, and the other end is connected to the negative pressure mechanism.

9. The electrode cleaning device according to claim 1, characterized in that, The electrode cleaning device further includes a vision inspection unit for taking pictures and inspecting the battery cell to be processed after it has been cleaned by the laser cleaning unit. The vision inspection unit includes a driving component and a camera. The driving component is used to drive the camera to move closer to or away from the battery cell to be processed, and the camera is used to take pictures of the electrode.

10. The electrode cleaning device according to claim 1, characterized in that, The conveying unit includes an annular guide rail and clamping stations. The clamping stations are spaced apart on the annular guide rail and are used to clamp the battery cells to be processed. The annular guide rail is used to convey the battery cells to be processed.

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