Dust removal device for battery pole piece

Abstract

The utility model relates to a battery pole piece dust removal device which comprises a mounting plate, and two supporting cantilevers which are symmetrically arranged up and down at an interval are vertically connected to the mounting plate; the dust removal assembly comprises adjusting supports connected to the supporting cantilevers and a plurality of negative pressure dust removers which are connected to the adjusting supports and are arranged in sequence; and the smoothing mechanism comprises connecting pieces fixed on the supporting cantilevers and arc-shaped smoothing plates connected to the connecting pieces. According to the dust removal device for the battery pole piece, the mounting plate of the dust removal support is mounted on one side of the pole piece in the proper vacancy between the position after the pole piece is slit and the position before the pole piece is rolled, the two supporting cantilevers which are vertically and symmetrically arranged at intervals are vertically connected to the mounting plate, and the dust removal device for the battery pole piece is rapidly mounted on a pole piece slitting machine table. The dust removal assembly and the smoothing mechanisms are symmetrically installed on the two supporting cantilevers, and the pole piece penetrates through the position between the two opposite smoothing mechanisms and the dust removal assembly to achieve automatic dust removal operation.

Description

Technical Field

[0001] The present application relates to the technical field of battery pole piece dust removal, and in particular to a battery pole piece dust removal device. Background Art

[0002] For secondary batteries, the surface quality of the electrode directly affects battery performance. In particular, dust adsorbed on the electrode surface during production can directly cause the battery to fail. Dust and moisture are both natural enemies of secondary batteries, and effectively eliminating them is a top priority in secondary battery production.

[0003] Currently, secondary batteries produced by the winding process have one of the processes called slitting, which is a manufacturing process that divides the electrode from one strip into multiple strips. During the slitting process, metal shavings and other dust will inevitably be generated at the cutting edges. If the dust adsorbed on the surface of the electrode is not promptly and effectively handled, it may enter the battery cell through the next process, eventually causing the entire battery to be scrapped, which not only poses a safety hazard but also causes waste of raw materials.

[0004] According to the current battery production process, in the current winding machine, metal shavings will be generated on the large surface of the electrode for various reasons. After being wound into the battery cell, these metal shavings will increase the internal resistance of the battery, increase the short circuit rate of the battery cell, and reduce the battery quality rate, posing a quality risk. The commonly used dust removal method only installs a dust collector at the winding needle. The process dust removal structure cannot be quickly introduced without modifying the on-site machine parts. Summary of the Invention

[0005] An embodiment of the present application provides a battery electrode dust removal device to solve the problem in related technologies that dust removal is commonly performed by only installing a dust collector at the winding needle, and the process dust removal structure cannot be quickly introduced without modifying on-site machine parts.

[0006] The present application provides a battery electrode dust removal device, comprising:

[0007] The dust removal bracket includes a mounting plate, and two supporting cantilevers are vertically connected to the mounting plate and are symmetrically spaced apart from each other.

[0008] A dust removal assembly, comprising an adjustment bracket connected to each of the support cantilevers, and a plurality of negative pressure dust collectors connected to each of the adjustment brackets and arranged in sequence;

[0009] The smoothing mechanism includes a connecting piece fixed on each of the supporting cantilevers, and an arc-shaped smoothing plate connected to the connecting piece.

[0010] In some embodiments, the supporting cantilever includes a first supporting plate extending along a first direction, and the first supporting plate is provided with a plurality of first mounting holes for connecting and adjusting the adjustment bracket to move along the first direction.

[0011] In some embodiments, the supporting cantilever includes a reinforcing plate extending along a first direction and used to support the first supporting plate, and the reinforcing plate is connected to the mounting plate by bolts.

[0012] In some embodiments: the adjustment bracket includes a second support plate vertically connected to the support cantilever and extending along the second direction, and a third support plate vertically connected to the second support plate extending along the third direction;

[0013] The second support plate is provided with a plurality of second mounting holes for connecting and adjusting the third support plate to move along the second direction; the third support plate is provided with a plurality of third mounting holes for connecting and adjusting the negative pressure dust collector to move along the third direction.

[0014] In some embodiments: an oblique support plate is also connected between the second support plate and the support cantilever, one end of the oblique support plate is fixedly connected to the second support plate, and one end of the oblique support plate is connected to the support cantilever through a first elongated hole, and the length direction of the first elongated hole is parallel to the first direction.

[0015] In some embodiments: the negative pressure dust collector includes a negative pressure air pipe joint connected to a vacuum air source, a dust removal filter connected to the negative pressure air pipe joint, and a negative pressure suction nozzle connected to the dust removal filter;

[0016] The air inlet end of the negative pressure suction nozzle is a flat structure, and the air inlet width of the negative pressure suction nozzle of the negative pressure dust collector located upstream among the multiple negative pressure dust collectors is smaller than the air inlet width of the negative pressure suction nozzle of the negative pressure dust collector located downstream.

[0017] In some embodiments: the plurality of negative pressure dust collectors arranged in sequence on each of the adjustment brackets are arranged in sequence from front to back along the moving direction of the electrode piece;

[0018] The plurality of negative pressure dust collectors arranged in sequence above and the plurality of negative pressure dust collectors arranged in sequence below are symmetrically arranged in an upper and lower direction, and the air inlet ends of the negative pressure suction nozzles are opposite to each other.

[0019] In some embodiments: the spacing between the air inlet ends of the plurality of negative pressure dust collectors arranged in sequence above and the plurality of negative pressure dust collectors arranged in sequence below is 2-10 mm;

[0020] Each of the negative pressure suction nozzles is rotatably connected to a roller shaft, and the roller shaft is connected to the negative pressure suction nozzle through a mounting bracket.

[0021] In some embodiments, a second elongated hole connected to the supporting cantilever is formed on the connecting member, and the second elongated hole extends along the second direction;

[0022] The connecting member is provided with a third elongated hole connected to the arc-shaped smoothing plate, and the third elongated hole extends along a third direction.

[0023] In some embodiments, the distance between the upper arc-shaped smoothing plate and the lower arc-shaped smoothing plate gradually decreases along the moving direction of the pole piece;

[0024] The minimum distance between the upper curved smoothing plate and the lower curved smoothing plate is 0.5-3 mm.

[0025] The beneficial effects of the technical solution provided by this application include:

[0026] An embodiment of the present application provides a battery pole piece dust removal device. Since the battery pole piece dust removal device of the present application is provided with a dust removal bracket, the dust removal bracket includes a mounting plate, on which two supporting cantilevers are vertically connected and arranged symmetrically in an upper and lower manner; a dust removal assembly, which includes an adjustment bracket connected to each supporting cantilever, and a plurality of negative pressure dust collectors arranged in sequence and connected to each adjusting bracket; a smoothing mechanism, which includes a connecting piece fixed to each supporting cantilever, and an arc-shaped smoothing plate connected to the connecting piece.

[0027] Therefore, the battery electrode sheet dust removal device of the present application installs the dust removal bracket mounting plate on one side of the electrode sheet in a suitable space between the electrode sheet slitting and the electrode sheet rewinding. Two vertically connected support cantilevers are arranged symmetrically at intervals. The battery electrode sheet dust removal device is quickly installed on the electrode sheet slitting machine. The dust removal assembly and smoothing mechanism are symmetrically installed on the two support cantilevers. The electrode sheet passes between the two opposing smoothing mechanisms and the dust removal assembly to achieve automatic dust removal.

[0028] The smoothing mechanism is used to prevent the electrode from tilting too much when entering the dust removal assembly, which would cause the electrode to shake and cause scratches during dust removal. The dust removal assembly is used to simultaneously clean the upper and lower surfaces of the electrode with negative pressure, removing metal shavings from the surface of the electrode when it is transported to the winding section after laser cutting. The present application can negatively adsorb metal shavings from the surface of the electrode into a negative pressure dust collector, performing targeted dust removal to prevent metal shavings from overflowing and falling onto the wound electrode, causing further contamination of the electrode, and thus avoiding secondary contamination of the electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 This is a structural front view of an embodiment of the present application;

[0031] Figure 2 A top view of the structure of an embodiment of the present application;

[0032] Figure 3 This is a left side view of the structure of an embodiment of the present application;

[0033] Figure 4 A structural stereogram of an embodiment of the present application from a first perspective;

[0034] Figure 5 This is a structural stereogram from a second perspective of an embodiment of the present application.

[0035] Reference numerals:

[0036] 10. Dust removal bracket; 11. Mounting plate; 12. Support cantilever; 13. First support plate; 14. Reinforcement plate; 15. First mounting hole;

[0037] 20. Dust removal assembly; 21. Adjustment bracket; 22. Negative pressure dust collector; 23. Second support plate; 24. Second mounting hole; 25. Third support plate; 26. Third mounting hole; 27. Diagonal support plate; 28. First elongated hole; 29. ​​Roller shaft;

[0038] 30. Smoothing mechanism; 31. Connecting piece; 32. Arc-shaped smoothing plate; 33. Second elongated hole; 34. Third elongated hole. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0040] The embodiment of the present application provides a battery electrode dust removal device, which can solve the problem that the dust removal commonly used in the related art only installs a dust collector at the winding needle, and the process dust removal structure cannot be quickly introduced without modifying the on-site machine parts.

[0041] See also Figures 1 to 3 As shown, the embodiment of the present application provides a battery electrode dust removal device, comprising:

[0042] The dust removal bracket 10 includes a mounting plate 11, which is a vertically arranged rectangular steel plate. Two support arms 12 are vertically connected to the mounting plate 11 and are symmetrically spaced apart. One end of the upper support arm 12 is fixedly connected to the top of the mounting plate 11, and one end of the lower support arm 12 is fixedly connected to the bottom of the mounting plate 11. In this application, the first direction, the second direction, and the third direction are mutually perpendicular. The first direction is the Y-axis direction, the second direction is the Z-axis direction, and the third direction is the X-axis direction.

[0043] The dust removal assembly 20 includes an adjustment bracket 21 connected to the upper support cantilever 12 and the lower support cantilever 12, and a plurality of negative pressure dust collectors 22 connected to the upper and lower adjustment brackets 21, arranged in sequence. The negative pressure dust collector 22 on the upper adjustment bracket 21 is the upper negative pressure dust collector, and the negative pressure dust collector 22 on the lower adjustment bracket 21 is the lower negative pressure dust collector. The upper and lower negative pressure dust collectors are spaced apart in the second direction, and the arc-shaped smoothing plate is used to smooth the pole tabs of the pole piece.

[0044] The smoothing mechanism 30 includes a connector 31 fixed to the upper support cantilever 12 and the lower support cantilever 12, and a curved smoothing plate 32 connected to the upper and lower connectors 31. The curved smoothing plate 32 on the upper connector 31 is the upper curved smoothing plate, and the curved smoothing plate 32 on the lower connector 31 is the lower curved smoothing plate. The upper and lower curved smoothing plates are spaced apart in the second direction, with the center portion serving to smooth and pass the pole piece.

[0045] The battery electrode sheet dust removal device of the present embodiment is configured by installing the mounting plate 11 of the dust removal bracket 10 on one side of the electrode sheet in a suitable space between the electrode sheet slitting and the electrode sheet rewinding. Two vertically connected support arms 12 are symmetrically spaced apart vertically on the mounting plate 11, allowing the battery electrode sheet dust removal device to be quickly installed on the electrode sheet slitting machine. A dust removal assembly 20 and a smoothing mechanism 30 are symmetrically mounted on the two support arms 12, and the electrode sheet passes between the two opposing smoothing mechanisms 30 and the dust removal assembly 20 to achieve automatic dust removal.

[0046] The smoothing mechanism 30 is primarily used to smooth the tabs of the electrode. The dust removal assembly 20 is used to simultaneously negatively pressure clean the upper and lower surfaces of the electrode, removing metal shavings from the electrode surface as it is transported to the winding section after laser cutting. This application can negatively pressure adsorb metal shavings from the electrode surface within the negative pressure dust collector 22, providing targeted dust removal and preventing metal shavings from escaping and falling onto the wound electrode, potentially contaminating the electrode and preventing secondary contamination of the electrode.

[0047] In some alternative embodiments: See Figure 4 and Figure 5 As shown, an embodiment of the present application provides a battery electrode dust removal device. The support arm 12 of the battery electrode dust removal device includes a first support plate 13 extending in a first direction. The first support plate 13 is provided with a plurality of first mounting holes 15 for connecting and adjusting an adjustment bracket 21 to move along the first direction. When the adjustment bracket 21 is installed, the adjustment bracket 21 is moved along the first direction and then fixed to the first support plate 13, so that the negative pressure dust collector 22 can be compatible with electrode plates of different widths.

[0048] The support arm 12 also includes a reinforcement plate 14 extending in a first direction and supporting the first support plate 13. The first support plate 13 is a horizontally arranged rectangular flat plate, while the reinforcement plate 14 is a vertically arranged right-angled triangular plate or a right-angled trapezoidal plate. The reinforcement plate 14 is bolted to the mounting plate 11. The top of the upper reinforcement plate 14 is fixedly connected to the bottom of the upper first support plate 13, while the bottom of the lower reinforcement plate 14 is fixedly connected to the top of the lower first support plate 13.

[0049] In some alternative embodiments: See Figures 1 to 5 As shown, an embodiment of the present application provides a battery pole piece dust removal device, wherein an adjustment bracket 21 of the battery pole piece dust removal device includes a second support plate 23 vertically connected to the first support plate 13 supporting the cantilever 12 and extending along the second direction, and a third support plate 25 extending along the third direction is vertically connected to the second support plate 23.

[0050] The second support plate 23 is provided with a plurality of second mounting holes 24 for connecting and adjusting the movement of the third support plate 25 in the second direction. The third support plate 25 is provided with a plurality of third mounting holes 26 for connecting and adjusting the movement of the negative pressure dust collector 22 in the third direction. When installing the third support plate 25, the third support plate 25 is moved in the second direction and fixed to the second support plate 23, so that the gaps between the upper and lower negative pressure dust collectors and the electrode pieces are adjusted to the appropriate distance.

[0051] When installing the upper negative pressure dust collector and the lower negative pressure dust collector, after moving the upper negative pressure dust collector and the lower negative pressure dust collector along the third direction on the third support plate 25 and fixing them on the third support plate 25, a suitable distance is maintained between the two adjacent upper negative pressure dust collectors and the two adjacent lower negative pressure dust collectors to prevent the two adjacent upper negative pressure dust collectors and the two adjacent lower negative pressure dust collectors from interfering with each other's positions.

[0052] In some alternative embodiments: See Figures 1 to 5 As shown, an embodiment of the present application provides a battery electrode dust removal device. A diagonal support plate 27 is further connected between the second support plate 23 of the battery electrode dust removal device and the first support plate 13 of the support cantilever 12. One end of the diagonal support plate 27 is fixedly connected to the second support plate 23, and one end of the diagonal support plate 27 is connected to the first support plate 13 of the support cantilever 12 through a first elongated hole 28. The diagonal support plate 27 is used to enhance the connection strength between the second support plate 23 and the first support plate 13. The length direction of the first elongated hole 28 is parallel to the first direction, so that the diagonal support plate 27 moves along the first direction with the second support plate 23.

[0053] In some alternative embodiments: See Figures 1 to 5 As shown, an embodiment of the present application provides a battery electrode dust removal device, wherein the negative pressure dust collector 22 of the battery electrode dust removal device includes a negative pressure air pipe joint connected to a vacuum air source, a dust removal filter connected to the negative pressure air pipe joint, and a negative pressure suction nozzle connected to the dust removal filter. The air inlet end of the negative pressure suction nozzle is a flat structure, and the air inlet width of the negative pressure suction nozzle of the negative pressure dust collector 22 located upstream among the multiple negative pressure dust collectors is smaller than the air inlet width of the negative pressure suction nozzle of the negative pressure dust collector 22 located downstream.

[0054] The multiple negative pressure dust collectors 22 arranged in sequence on the upper adjustment bracket 21 are arranged in sequence from front to back along the direction of movement of the electrode piece; the multiple negative pressure dust collectors 22 arranged in sequence on the lower adjustment bracket 21 are arranged in sequence from front to back along the direction of movement of the electrode piece. The multiple negative pressure dust collectors 22 arranged in sequence on the upper side and the multiple negative pressure dust collectors 22 arranged in sequence on the lower side are arranged symmetrically in the vertical direction, and the air inlet ends of the negative pressure suction nozzles face each other.

[0055] The spacing between the air inlet ends of the multiple negative pressure dust collectors 22 arranged in sequence above and the multiple negative pressure dust collectors 22 arranged in sequence below is 2-10mm. A roller 29 is rotatably connected to the negative pressure suction nozzle of each negative pressure dust collector 22, and the roller 29 is connected to the negative pressure suction nozzle of each negative pressure dust collector 22 through a mounting bracket. The width of the negative pressure suction nozzle of the negative pressure dust collector 22 located upstream is L (1≤L≤3mm), so that the wind speed of the negative pressure suction nozzle is greater than 35m / s. The high wind speed and narrow cross-section negative pressure suction nozzle can loosen the stubborn dust on the electrode and enhance the dust removal effect. The width of the negative pressure suction nozzle of the negative pressure dust collector 22 located downstream can be set arbitrarily, and the wind speed is greater than 25m / s to meet production use.

[0056] In some alternative embodiments: See Figures 1 to 5 As shown, an embodiment of the present application provides a battery electrode dust removal device. A second elongated hole 33 is defined on a connector 31 of the device, connected to the first support plate 13 supporting the cantilever 12. The second elongated hole 33 extends in a second direction and is used to adjust the spacing between the upper and lower arcuate smoothing plates in the second direction. A third elongated hole 34 is defined on the connector 31, connected to the arcuate smoothing plate 32. The third elongated hole 34 extends in a third direction. The third elongated hole 34 adjusts the forward or backward movement of the upper and lower arcuate smoothing plates along the third direction.

[0057] The distance between the upper and lower curved smoothing plates 32 gradually decreases along the direction of pole piece movement. The minimum distance between the upper and lower curved smoothing plates 32 is 0.5-3 mm. This distance is used to smooth the pole piece tabs.

[0058] How it works

[0059] An embodiment of the present application provides a battery pole piece dust removal device. Since the battery pole piece dust removal device of the present application is provided with a dust removal bracket 10, the dust removal bracket 10 includes a mounting plate 11, on which two support cantilevers 12 symmetrically spaced apart in an upper and lower direction are vertically connected; a dust removal assembly 20, which includes an adjustment bracket 21 connected to each support cantilever 12, and a plurality of negative pressure dust collectors 22 arranged in sequence and connected to each adjustment bracket 21; a smoothing mechanism 30, which includes a connecting member 31 fixed on each support cantilever 12, and an arc-shaped smoothing plate 32 connected to the connecting member 31.

[0060] Therefore, the battery electrode dust removal device of the present application installs the mounting plate 11 of the dust removal bracket 10 on one side of the electrode in a suitable space between the electrode slitting and the rewinding. Two vertically connected support cantilevers 12 are arranged symmetrically at intervals. The battery electrode dust removal device is quickly installed on the electrode slitting machine. The dust removal assembly 20 and the smoothing mechanism 30 are symmetrically mounted on the two support cantilevers 12. The electrode passes between the two opposing smoothing mechanisms 30 and the dust removal assembly 20 to achieve automatic dust removal.

[0061] The smoothing mechanism 30 is used to smooth the tabs of the electrode. The dust removal assembly 20 is used to simultaneously negatively pressure clean the upper and lower surfaces of the electrode, removing metal shavings from the electrode surface during transport to the winding section after laser cutting. The present application can negatively pressure adsorb metal shavings from the electrode surface within the negative pressure dust collector 22, providing targeted dust removal and preventing metal shavings from escaping and falling onto the wound electrode, potentially contaminating the electrode and preventing secondary contamination of the electrode.

[0062] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0063] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0064] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A battery pole piece dust removal device, characterized in that: include: A dust removal bracket (10), the dust removal bracket (10) comprising a mounting plate (11), two supporting cantilevers (12) vertically connected to the mounting plate (11) and symmetrically spaced apart from each other; A dust removal assembly (20), the dust removal assembly (20) comprising an adjustment bracket (21) connected to each of the support cantilevers (12), and a plurality of negative pressure dust collectors (22) connected to each of the adjustment brackets (21) and arranged in sequence; A smoothing mechanism (30) includes a connecting member (31) fixed on each of the supporting cantilevers (12), and an arc-shaped smoothing plate (32) connected to the connecting member (31).

2. A battery pole piece dust removal device according to claim 1, characterized in that: The supporting cantilever (12) comprises a first supporting plate (13) extending along a first direction, and the first supporting plate (13) is provided with a plurality of first mounting holes (15) for connecting and adjusting the movement of the adjusting bracket (21) along the first direction.

3. A battery pole piece dust removal device according to claim 2, characterized in that: The supporting cantilever (12) further comprises a reinforcing plate (14) extending along a first direction and used to support the first supporting plate (13); the reinforcing plate (14) is connected to the mounting plate (11) via bolts.

4. The battery pole piece dust removal device according to claim 1, characterized in that: The adjustment bracket (21) comprises a second support plate (23) vertically connected to the support cantilever (12) and extending in a second direction, and a third support plate (25) extending in a third direction is vertically connected to the second support plate (23); The second support plate (23) is provided with a plurality of second mounting holes (24) for connecting and adjusting the third support plate (25) to move along the second direction; the third support plate (25) is provided with a plurality of third mounting holes (26) for connecting and adjusting the negative pressure dust collector (22) to move along the third direction.

5. A battery pole piece dust removal device according to claim 4, characterized in that: A diagonal support plate (27) is further connected between the second support plate (23) and the support cantilever (12). Claims One end of the diagonal support plate (27) is fixedly connected to the second support plate (23), and one end of the diagonal support plate (27) is connected to the support cantilever (12) through a first elongated hole (28), and the length direction of the first elongated hole (28) is parallel to the first direction.

6. The battery pole piece dust removal device according to claim 1, characterized in that: The negative pressure dust collector (22) comprises a negative pressure air pipe joint connected to a vacuum air source, a dust removal filter connected to the negative pressure air pipe joint, and a negative pressure suction nozzle connected to the dust removal filter; The air inlet end of the negative pressure suction nozzle is a flat structure, and the air inlet width of the negative pressure suction nozzle of the negative pressure dust collector (22) located upstream among the multiple negative pressure dust collectors (22) is smaller than the air inlet width of the negative pressure suction nozzle of the negative pressure dust collector (22) located downstream.

7. A battery pole piece dust removal device according to claim 6, characterized in that: A plurality of negative pressure dust collectors (22) arranged in sequence on each of the adjustment brackets (21) are arranged in sequence from front to back along the moving direction of the electrode piece; The plurality of negative pressure dust collectors (22) arranged in sequence above and the plurality of negative pressure dust collectors (22) arranged in sequence below are symmetrically arranged up and down, and the air inlet ends of the negative pressure suction nozzles are opposite to each other.

8. The battery pole piece dust removal device according to claim 6, characterized in that: The spacing between the air inlet ends of the plurality of negative pressure dust collectors (22) arranged in sequence above and the plurality of negative pressure dust collectors (22) arranged in sequence below is 2-10 mm; A roller shaft (29) is rotatably connected to each of the negative pressure suction nozzles, and the roller shaft (29) is connected to the negative pressure suction nozzle via a mounting frame.

9. The battery pole piece dust removal device according to claim 1, characterized in that: The connecting member (31) is provided with a second elongated hole (33) connected to the supporting cantilever (12), and the second elongated hole (33) extends along a second direction; The connecting member (31) is provided with a third elongated hole (34) connected to the arc-shaped smoothing plate (32), and the third elongated hole (34) extends along a third direction.

10. The battery electrode dust removal device according to claim 1, characterized in that: The distance between the upper arc-shaped smoothing plate (32) and the lower arc-shaped smoothing plate (32) gradually decreases along the moving direction of the pole piece; The minimum distance between the upper arc-shaped smoothing plate (32) and the lower arc-shaped smoothing plate (32) is 0.5-3 mm.

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