Dust removal device for lithium ion battery pole piece

Abstract

The utility model discloses a dust removal device for a lithium ion battery pole piece, which belongs to the field of production and manufacture of lithium ion batteries and comprises a box body, the pole piece and a dust removal assembly are arranged in the box body, and the dust removal assembly comprises a first roll shaft, a slitting knife, a first deionization rod, a second deionization rod, a first dust collection structure and a second dust collection structure; the pole piece is tightly attached to the peripheral face of the first roller shaft, the slitting knife is arranged on the first roller shaft, the pole piece is divided into a first piece body and a second piece body through the slitting knife, the first deionization rod and the second deionization rod are oppositely arranged, and the pole piece is located between the first deionization rod and the second deionization rod; the first dust collection structure comprises a first dust brushing rod and a first dust collector, the second dust collection structure comprises a second dust brushing rod and a second dust collector, the first dust brushing rod is in contact with the surface of the first sheet body, and the second dust brushing rod is in contact with the surface of the second sheet body, so that the dust collection effect of the dust collection device can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of lithium-ion battery manufacturing technology, specifically relating to a dust removal device for lithium-ion battery electrodes. Background Technology

[0002] A lithium-ion battery (Li-ion for short) is a rechargeable battery that relies on the movement of lithium ions between the positive and negative electrodes to function. During the manufacturing process of lithium-ion batteries, the battery electrodes typically generate a large amount of static electricity during coating, rolling, and other production processes. This causes dust from the air to adhere to the electrodes, potentially leading to short circuits, self-discharge, and other problems that affect the safety and electrical performance of the lithium battery. Therefore, dust removal devices are needed to clean the electrodes of lithium-ion batteries.

[0003] Common dust removal devices currently include positive pressure blowing components and negative pressure suction structures. The positive pressure blowing component blows air onto the electrode surface to clean dust, while the negative pressure suction structure absorbs airborne dust, thus achieving dust removal from lithium-ion battery electrodes. However, since the dust on the electrodes is mainly formed by electrostatic adsorption, the aforementioned positive pressure blowing components and negative pressure suction structures have poor dust removal efficiency, resulting in poor overall dust removal performance. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a dust removal device for lithium-ion battery electrodes. The technical problem to be solved by this utility model is achieved through the following technical solution:

[0005] In a first aspect, this utility model provides a dust removal device for lithium-ion battery electrode sheets, including a housing, an electrode sheet and a dust removal component are provided inside the housing, and the dust removal component includes a first roller, a slitting knife, a first deionizing rod, a second deionizing rod, a first dust suction structure and a second dust suction structure.

[0006] The electrode sheet is closely attached to the outer circumferential surface of the first roller shaft. A slitting knife is set on the first roller shaft. The electrode sheet is divided into a first sheet and a second sheet by the slitting knife. The first deionizing rod and the second deionizing rod are arranged opposite to each other. The electrode sheet is located between the first deionizing rod and the second deionizing rod.

[0007] The first suction structure includes a first dust brush and a first vacuum cleaner, and the second suction structure includes a second dust brush and a second vacuum cleaner. The first dust brush is in contact with the surface of the first sheet, the first vacuum cleaner faces the surface of the first sheet, and the first dust brush is located between the first vacuum cleaner and the first sheet. The second dust brush is in contact with the surface of the second sheet, the second vacuum cleaner faces the surface of the second sheet, and the second dust brush is located between the second vacuum cleaner and the second sheet.

[0008] In one embodiment of this utility model, there are two first dust-collecting structures, and the two first dust-collecting structures are symmetrically arranged on both sides of the first sheet.

[0009] In one embodiment of this utility model, two second dust-collecting structures are provided, and the two second dust-collecting structures are symmetrically arranged on both sides of the second sheet.

[0010] In one embodiment of the present invention, the dust removal assembly further includes a second roller shaft, and a first sheet is wound around the outer periphery of the second roller shaft and extends upward after passing over the second roller shaft.

[0011] In one embodiment of the present invention, the dust removal assembly further includes a third roller shaft, and a second sheet is wound around the outer periphery of the third roller shaft and extends downward after passing over the third roller shaft.

[0012] In one embodiment of the present invention, the second roller and the third roller are located on the same vertical plane, the first roller, the second roller and the third roller are parallel to each other and located on different horizontal planes, and the distance between the first roller and the second roller is equal to the distance between the first roller and the third roller.

[0013] In one embodiment of the present invention, the first deionizing rod is parallel to the first roller shaft, and the first deionizing rod is located between the first roller shaft and the second roller shaft;

[0014] The second deionization bar is parallel to the first roller shaft, and the second deionization bar is located between the first roller shaft and the third roller shaft;

[0015] The first deionizing rod and the second deionizing rod are located on the same vertical plane, and the first sheet and the second sheet are both located between the first deionizing rod and the second deionizing rod.

[0016] In one embodiment of this utility model, the box body is further provided with a frame, and the first roller shaft, the second roller shaft, the third roller shaft, the first deionizing rod, the second deionizing rod, the first dust collection structure and the second dust collection structure are all installed on the frame.

[0017] In one embodiment of this utility model, a filter fan is also provided on the outer surface of the housing. The filter fan contains a fan, a first filter screen and a second filter screen. The airflow drawn in by the fan passes through the first filter screen and the second filter screen in sequence before entering the housing.

[0018] In one embodiment of this utility model, the filter fan is an FFU (Fan Filter Unit).

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] In the above-described solution of this application, the dust removal device includes a housing, inside which are provided an electrode and a dust removal assembly. The dust removal assembly includes a first roller, a slitting blade, a first deionizing rod, a second deionizing rod, a first suction structure, and a second suction structure. The electrode is closely attached to the outer circumferential surface of the first roller. The slitting blade is disposed on the first roller, and the electrode is divided into a first sheet and a second sheet by the slitting blade. The first deionizing rod and the second deionizing rod are disposed opposite to each other, and the electrode is located between the first deionizing rod and the second deionizing rod. The first suction structure includes a first dust brush and a first vacuum cleaner. The second suction structure includes a second dust brush and a second vacuum cleaner. The first dust brush is in contact with the surface of the first sheet, the first vacuum cleaner faces the surface of the first sheet, and the first dust brush is located between the first vacuum cleaner and the first sheet. The second dust brush is in contact with the surface of the second sheet, the second vacuum cleaner faces the surface of the second sheet, and the second dust brush is located between the second vacuum cleaner and the second sheet. This structure improves the stability of electrode conveying by using a first roller. Cutting the electrodes with a slitting blade yields small-sized first and second electrodes that meet usage requirements. Positive and negative ions are delivered to the two surfaces of the electrodes via a first and second deionizing rod, neutralizing static electricity and harmful substances, thus purifying the air and eliminating static electricity. Dust on the surface of the first electrode is brushed away by a first dust brush, and the dust from the air and the brush is absorbed by a first vacuum cleaner, achieving dust removal for the first electrode. Similarly, dust on the surface of the second electrode is brushed away by a second dust brush, and the dust from the air and the brush is absorbed by a second vacuum cleaner, achieving dust removal for the second electrode. Thus, when the electrode sheet is conveyed to the dust removal device, it can first be divided into a first sheet and a second sheet by a slitting blade. Then, the first and second deionizing rods are used to simultaneously eliminate static electricity on both sides of the first and second sheets. After that, the first sheet is brushed and vacuumed by a first dust brush and a first vacuum cleaner, and the second sheet is brushed and vacuumed by a second dust brush and a second vacuum cleaner. This improves the dust removal effect of the dust removal device, and the dust removal device can perform dust removal on the first and second sheets simultaneously.

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the dust removal device provided in an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the electrode sheet and dust removal component in an embodiment of this utility model.

[0024] Reference numerals: 1-box, 2-electrode, 21-first electrode, 22-second electrode, 3-dust removal assembly, 31-first roller, 32-slitting blade, 33-first deionizing rod, 34-second deionizing rod, 35-first dust collection structure, 351-first dust brush, 352-first vacuum cleaner, 36-second dust collection structure, 361-second dust brush, 362-second vacuum cleaner, 37-second roller, 38-third roller, 4-filter fan. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to specific embodiments, but the implementation of the present invention is not limited thereto.

[0026] Please see Figure 1 and Figure 2 This utility model provides a dust removal device for lithium-ion battery electrodes, including a housing 1. The housing 1 contains an electrode 2 and a dust removal assembly 3. The dust removal assembly 3 includes a first roller 31, a slitting blade 32, a first deionizing rod 33, a second deionizing rod 34, a first suction structure 35, and a second suction structure 36. The electrode 2 is tightly attached to the outer circumferential surface of the first roller 31. The slitting blade 32 is disposed on the first roller 31, and the electrode 2 is divided into a first sheet 21 and a second sheet 22 by the slitting blade 32. The first deionizing rod 33 and the second deionizing rod 34 are arranged opposite to each other, and the electrode 2 is located between the first deionizing rod 33 and the second deionizing rod 34. Between the ion rods 34; the first dust collection structure 35 includes a first dust brush 351 and a first vacuum cleaner 352, and the second dust collection structure 36 includes a second dust brush 361 and a second vacuum cleaner 362. The first dust brush 351 is in contact with the surface of the first sheet 21, the first vacuum cleaner 352 faces the surface of the first sheet 21, and the first dust brush 351 is located between the first vacuum cleaner 352 and the first sheet 21. The second dust brush 361 is in contact with the surface of the second sheet 22, the second vacuum cleaner 362 faces the surface of the second sheet 22, and the second dust brush 361 is located between the second vacuum cleaner 362 and the second sheet 22.

[0027] In some embodiments of this application, the slitting blade 32 is disposed at the middle position of the first roller 31 and the slitting blade 32 is located at the middle position of the slice. Thus, when the slice is conveyed by the first roller 31 and cut into the first slice 21 and the second slice 22 by the slitting blade 32, the widths of the first slice 21 and the second slice 22 are equal.

[0028] In some embodiments of this application, the slitting blade 32 may be an annular blade sleeved on the outer periphery of the first roller 31.

[0029] In some embodiments of this application, the first deionizing rod 33 and the second deionizing rod 34 are both commonly used deionizing rods. Deionizing rods, also known as static eliminators or ionizers, are devices that neutralize static electricity on the surface of an object by releasing positive and negative ions. They are widely used in industries such as electronics manufacturing, printing, and plastics processing to prevent static electricity from attracting dust or damaging sensitive components. In this application, both the first deionizing rod 33 and the second deionizing rod 34 consist of a shell, a high-voltage ion generator, a discharge needle, and a fan. The shell has a cuboid structure, and the high-voltage ion generator, discharge needle, and fan are all located inside the shell. The high-voltage ion generator generates a large number of positive and negative ions, and the discharge needle releases ions through high-voltage corona discharge. The shell has ventilation holes facing the surface of the electrode 2. The fan generates airflow, which carries ions through the ventilation holes and blows them onto the surface of the electrode 2.

[0030] In some embodiments of this application, the first deionization rod 33 is located between the first roller 31 and the first dust collection structure 35, and the air holes of the first deionization rod 33 face the upper surfaces of the first sheet 21 and the second sheet 22.

[0031] In some embodiments of this application, the second deionization rod 34 is located between the first roller 31 and the second dust collection structure 36, and the air holes of the second deionization rod 34 face the lower surfaces of the first sheet 21 and the second sheet 22.

[0032] In some embodiments of this application, such as Figure 2 The first dust brush 351 and the second dust brush 361 are both rod structures with bristles on the surface of the rod. The first dust brush 351 and the second dust brush 361 can rotate to brush the surface of the electrode 2, or when the electrode 2 is being conveyed, the first dust brush 351 and the second dust brush 361 can contact the surface of the electrode 2 to brush.

[0033] In some embodiments of this application, the first vacuum cleaner 352 and the second vacuum cleaner 362 are both commonly used vacuum cleaners. In these embodiments, both the first vacuum cleaner 352 and the second vacuum cleaner 362 consist of a housing and an exhaust fan. The exhaust fan is disposed within the housing, which has a storage cavity. When the exhaust fan is operating, it draws external airflow into the housing. Dust from the external air or dust from the brush can be drawn into the storage cavity of the housing along with the airflow, thereby achieving dust removal.

[0034] In the above-mentioned solution of this application, the dust removal device includes a housing 1, and the housing 1 is provided with an electrode 2 and a dust removal assembly 3. The dust removal assembly 3 includes a first roller 31, a slitting blade 32, a first deionizing rod 33, a second deionizing rod 34, a first dust suction structure 35, and a second dust suction structure 36. The electrode 2 is closely attached to the outer peripheral surface of the first roller 31. The slitting blade 32 is disposed on the first roller 31. The electrode 2 is divided into a first sheet 21 and a second sheet 22 by the slitting blade 32. The first deionizing rod 33 and the second deionizing rod 34 are arranged opposite to each other. The electrode 2 is located between the first deionizing rod 33 and the second deionizing rod 34. The first suction structure 35 includes a first dust brush 351 and a first vacuum cleaner 352. The second suction structure 36 includes a second dust brush 361 and a second vacuum cleaner 362. The first dust brush 351 is in contact with the surface of the first sheet 21. The first vacuum cleaner 352 faces the surface of the first sheet 21, and the first dust brush 351 is located between the first vacuum cleaner 352 and the first sheet 21. The second dust brush 361 is in contact with the surface of the second sheet 22. The second vacuum cleaner 362 faces the surface of the second sheet 22, and the second dust brush 361 is located between the second vacuum cleaner 362 and the second sheet 22. This structure improves the stability of electrode conveying by the first roller 31; the electrode 2 is cut by the slitting blade 32 to obtain a small-sized first sheet 21 and second sheet 22 that meet the usage requirements; positive and negative ions are delivered to the two surfaces of the electrode 2 by the first deionizing rod 33 and the second deionizing rod 34 to neutralize static electricity and harmful substances on the electrode 2, thereby purifying the air and eliminating static electricity; the dust on the surface of the first sheet 21 is brushed by the first dust brush 351, and the dust on the first dust brush 351 is absorbed by the first vacuum cleaner 352, thus achieving dust removal for the first sheet 21; the dust on the surface of the second sheet 22 is brushed by the second dust brush 361, and the dust on the second dust brush 362 is absorbed by the second vacuum cleaner, thus achieving dust removal for the second sheet 22. Thus, when the electrode 2 is conveyed to the dust removal device, it can first be divided into a first sheet 21 and a second sheet 22 by the slitting blade 32. Then, the first deionizing rod 33 and the second deionizing rod 34 simultaneously perform static electricity elimination treatment on both sides of the first sheet 21 and the second sheet 22. After that, the first dust brush 351 and the first vacuum cleaner 352 brush and vacuum the first sheet 21, and the second dust brush 361 and the second vacuum cleaner 362 brush and vacuum the second sheet 22. This improves the dust removal effect of the dust removal device, and the dust removal device can perform dust removal treatment on the first sheet 21 and the second sheet 22 at the same time.

[0035] In some embodiments of this application, such as Figure 2As shown, there are two first suction structures 35, which are symmetrically arranged on both sides of the first sheet 21. With this structure, the two first suction structures 35 can brush and vacuum the two sides of the first sheet 21 respectively, which can improve the cleaning effect of the first sheet 21 and thus improve the dust removal effect of the dust removal device.

[0036] In some embodiments of this application, two second suction structures 36 are provided, and the two second suction structures 36 are symmetrically arranged on both sides of the second sheet 22. With this structure, the two second suction structures 36 respectively brush and vacuum the two side surfaces of the second sheet 22, which can improve the cleaning effect of the second sheet 22, thereby improving the dust removal effect of the dust removal device.

[0037] In some embodiments of this application, such as Figure 2 As shown, the dust removal assembly 3 also includes a second roller shaft 37, with the first sheet 21 wound around the outer periphery of the second roller shaft 37 and extending upward after passing over the second roller shaft 37. This structure, by guiding and tensioning the first sheet 21 through the second roller shaft 37, improves the stability of the first sheet 21's conveying. The upward extension of the first sheet 21 after passing over the second roller shaft 37 optimizes the conveying direction of the first sheet 21 and the second sheet 22, thereby increasing the distance between the first suction structure 35 and the second suction structure 36, and preventing mutual interference between the first sheet 21 and the second sheet 22 during dust removal.

[0038] In some embodiments of this application, such as Figure 2 As shown, the dust removal assembly 3 also includes a third roller shaft 38, with the second sheet 22 wound around the outer periphery of the third roller shaft 38 and extending downwards after passing over the third roller shaft 38. This structure, by guiding and tensioning the second sheet 22 through the third roller shaft 38, improves the stability of the second sheet 22's transport. The downward extension of the second sheet 22 after passing over the third roller shaft 38 optimizes the transport direction of the first sheet 21 and the second sheet 22, further increasing the distance between the first suction structure 35 and the second suction structure 36, thus preventing mutual interference between the first sheet 21 and the second sheet 22 during dust removal.

[0039] In some embodiments of this application, such as Figure 2As shown, the second roller 37 and the third roller 38 are located on the same vertical plane. The first roller 31, the second roller 37, and the third roller 38 are parallel to each other and located on different horizontal planes. The distance between the first roller 31 and the second roller 37 is equal to the distance between the first roller 31 and the third roller 38. With this structure, by optimizing the positions of the first roller 31, the second roller 37, and the third roller 38, when the electrode 2 is divided into the first sheet 21 and the second sheet 22 by the slitting blade 32, the first sheet 21 can be conveyed obliquely upwards, and the second sheet 22 can be conveyed obliquely downwards. This creates a vertical gap between the first sheet 21 and the second sheet 22, thus preventing mutual interference during their conveying. Simultaneously, the positive and negative ions conveyed by the first deionizing rod 33 and the second deionizing rod 34 can flow through the gap between the first sheet 21 and the second sheet 22, further improving the static electricity elimination effect of the first sheet 21 and the second sheet 22.

[0040] In some embodiments of this application, such as Figure 2 As shown, the first deionizing rod 33 is parallel to the first roller shaft 31, and is located between the first roller shaft 31 and the second roller shaft 37; the second deionizing rod 34 is parallel to the first roller shaft 31, and is located between the first roller shaft 31 and the third roller shaft 38; the first deionizing rod 33 and the second deionizing rod 34 are located on the same vertical plane, and the first sheet 21 and the second sheet 22 are both located between the first deionizing rod 33 and the second deionizing rod 34. With this structure, by optimizing the placement of the first deionizing rod 33 and the second deionizing rod 34, the static electricity elimination effect of the first sheet 21 and the second sheet 22 can be further improved.

[0041] In some embodiments of this application, the housing 1 is further provided with a frame, on which the first roller shaft 31, the second roller shaft 37, the third roller shaft 38, the first deionizing rod 33, the second deionizing rod 34, the first dust-collecting structure 35, and the second dust-collecting structure 36 are all mounted. This structure, with the frame supporting the first roller shaft 31, the second roller shaft 37, the third roller shaft 38, the first deionizing rod 33, the second deionizing rod 34, the first dust-collecting structure 35, and the second dust-collecting structure 36, improves their stability.

[0042] In some embodiments of this application, the frame can be composed of horizontal bars, vertical bars, and vertical rods. Specifically, the bottom of the frame is a rectangular frame formed by connecting two horizontal bars and two vertical bars. Vertical rods are installed on the rectangular frame. There are multiple vertical rods, and the multiple vertical rods are parallel to each other. Horizontal bars and vertical bars are also connected between adjacent vertical rods to increase the overall stability of the frame. Among them, two vertical rods arranged sequentially along the width direction of the box 1 form a set of supporting vertical rods. The first roller shaft 31, the second roller shaft 37, and the third roller shaft 38 are rotatably connected to the three sets of supporting vertical rods, respectively. The first deionizing rod 33 and the second deionizing rod 34 can be connected to a set of supporting vertical rods, and the first deionizing rod 33 and the second deionizing rod 34 are arranged sequentially along the height direction of the box 1. The first dust collection structure 35 and the second dust collection structure 36 can be connected to a set of supporting vertical rods, respectively.

[0043] In some embodiments of this application, such as Figure 1 As shown, a filter fan 4 is also provided on the outer surface of the housing 1. The filter fan 4 contains a fan, a first filter screen, and a second filter screen. The airflow drawn in by the fan passes through the first filter screen and the second filter screen in sequence before entering the housing 1. With this structure, the filter fan 4 can draw outside air directly into the housing 1. After the outside air is filtered by the first filter screen and the second filter screen, the cleanliness of the gas delivered to the housing 1 can be improved, thereby improving the cleanliness of the electrode plates 2 inside the housing 1.

[0044] In some embodiments of this application, the mesh size of the second filter screen can be greater than that of the first filter screen, so that the outside air can first pass through coarse filtration and then fine filtration, thereby further improving the air filtration effect.

[0045] In some embodiments of this application, such as Figure 1 As shown, filter fan 4 is an FFU (Fan Filter Unit). An FFU is an air purification device with its own fan and high-efficiency filter, primarily used in environments with extremely high air cleanliness requirements, such as cleanrooms, semiconductor factories, biological laboratories, and pharmaceutical production. It maintains the cleanliness level of a local or overall space by circulating and filtering air. An FFU typically consists of a fan, a high-efficiency filter, a housing 1, and a pre-filter. This structure further enhances the air filtration effect.

[0046] In the description of this utility model, 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", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0047] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A dust removal device for lithium-ion battery electrodes, characterized in that, The device includes a housing, which contains electrode plates and a dust removal assembly. The dust removal assembly includes a first roller, a slitting knife, a first deionizing rod, a second deionizing rod, a first dust collection structure, and a second dust collection structure. The electrode sheet is closely attached to the outer peripheral surface of the first roller shaft. The slitting knife is disposed on the first roller shaft. The electrode sheet is divided into a first sheet and a second sheet by the slitting knife. The first deionizing rod and the second deionizing rod are disposed opposite to each other. The electrode sheet is located between the first deionizing rod and the second deionizing rod. The first suction structure includes a first dust brush and a first vacuum cleaner, and the second suction structure includes a second dust brush and a second vacuum cleaner. The first dust brush is in contact with the surface of the first sheet, the first vacuum cleaner faces the surface of the first sheet, and the first dust brush is located between the first vacuum cleaner and the first sheet. The second dust brush is in contact with the surface of the second sheet, the second vacuum cleaner faces the surface of the second sheet, and the second dust brush is located between the second vacuum cleaner and the second sheet.

2. The dust removal device for lithium-ion battery electrodes according to claim 1, characterized in that, There are two first suction structures, and the two first suction structures are symmetrically arranged on both sides of the first sheet.

3. The dust removal device for lithium-ion battery electrodes according to claim 2, characterized in that, There are two second suction structures, and the two second suction structures are symmetrically arranged on both sides of the second sheet.

4. The dust removal device for lithium-ion battery electrodes according to claim 1, characterized in that, The dust removal assembly further includes a second roller shaft, with the first sheet wrapped around the outer periphery of the second roller shaft and extending upward after passing over the second roller shaft.

5. The dust removal device for lithium-ion battery electrodes according to claim 4, characterized in that, The dust removal assembly also includes a third roller shaft, with the second sheet wrapped around the outer periphery of the third roller shaft and extending downward after passing over the third roller shaft.

6. The dust removal device for lithium-ion battery electrodes according to claim 5, characterized in that, The second roller and the third roller are located on the same vertical plane. The first roller, the second roller and the third roller are parallel to each other and located on different horizontal planes. The distance between the first roller and the second roller is equal to the distance between the first roller and the third roller.

7. The dust removal device for lithium-ion battery electrodes according to claim 6, characterized in that, The first deionizing bar is parallel to the first roller shaft, and the first deionizing bar is located between the first roller shaft and the second roller shaft; The second deionizing bar is parallel to the first roller shaft, and the second deionizing bar is located between the first roller shaft and the third roller shaft; The first deionizing rod and the second deionizing rod are located on the same vertical plane, and the first sheet and the second sheet are both located between the first deionizing rod and the second deionizing rod.

8. The dust removal device for lithium-ion battery electrodes according to claim 7, characterized in that, The box is also equipped with a frame, on which the first roller, the second roller, the third roller, the first deionizing rod, the second deionizing rod, the first dust collection structure and the second dust collection structure are all installed.

9. The dust removal device for lithium-ion battery electrodes according to claim 1, characterized in that, The outer surface of the housing is also provided with a filter fan. The filter fan contains a fan, a first filter screen and a second filter screen. The airflow drawn in by the fan passes through the first filter screen and the second filter screen in sequence before entering the housing.

10. The dust removal device for lithium-ion battery electrodes according to claim 9, characterized in that, The filter fan is an FFU (Fan Filter Unit).

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