Pole piece cleaning device and pole piece production equipment

Abstract

The invention provides a pole piece cleaning device and pole piece production equipment. The pole piece cleaning device comprises a cleaning mechanism, the cleaning mechanism comprises a first cleaning assembly and a second cleaning assembly, the first cleaning assembly is arranged on the side of a pole piece in the thickness direction of the pole piece, and the first cleaning assembly comprises an adsorption part and a bearing part arranged on the side, close to the pole piece, of the adsorption part; the adsorption part is configured to adsorb impurities on the pole piece through the bearing part by utilizing adsorption force, and the bearing part is used for bearing the impurities. The second cleaning assembly is arranged on the side of the bearing piece and used for removing impurities on the bearing piece. According to the pole piece cleaning device, the second cleaning assembly is arranged on the side of the bearing piece so that the impurities on the bearing piece can be cleaned, the pole piece can be better cleaned when the surface of the bearing piece is cleaned, and therefore the cleaning effect on the pole piece is improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and more particularly to a pole piece cleaning device and pole piece production equipment. Background Art

[0002] During the production process of the pole piece, impurities such as iron filings will be adsorbed on the pole piece. In order to avoid the adverse effects of impurities such as iron filings on the performance of the pole piece, the pole piece surface needs to be cleaned. How to improve the cleaning effect of the pole piece is an urgent problem to be solved. Summary of the invention

[0003] In view of the above problems, the present application provides a pole piece cleaning device and a pole piece production equipment to improve the cleaning effect of the pole piece.

[0004] The first aspect of the present application provides a pole piece cleaning device, comprising a cleaning mechanism, the cleaning mechanism comprising a first cleaning component and a second cleaning component, the first cleaning component is arranged beside the pole piece in the thickness direction of the pole piece, and the first cleaning component comprises an adsorbent and a carrier arranged on a side of the adsorbent close to the pole piece, the adsorbent is configured to utilize adsorption force and adsorb impurities on the pole piece through the carrier, and the carrier is used to carry impurities. The second cleaning component is arranged beside the carrier and is used to remove impurities on the carrier.

[0005] The first cleaning component of the pole piece cleaning device of the embodiment of the present application is provided with a carrier on the side of the adsorbent close to the pole piece, so that the adsorption force of the adsorbent acts on the impurities of the pole piece through the carrier, thereby causing the impurities to be adsorbed on the carrier. The second cleaning component of the embodiment of the present application is provided beside the carrier, thereby cleaning the impurities on the carrier. The surface of the carrier is cleaned, and the pole piece can be better cleaned, thereby improving the cleaning effect of the pole piece. Furthermore, when the pole piece cleaning device of the embodiment of the present application cleans the impurities on the pole piece, the impurities are adsorbed on the carrier instead of being directly adsorbed on the adsorbent. In this way, the second cleaning component can be used to clean the surface of the carrier instead of directly cleaning the surface of the adsorbent, thereby avoiding the second cleaning component directly cleaning the adsorbent and causing damage to the adsorbent.

[0006] In some embodiments, the adsorbent includes a magnetic member, and the adsorbent is configured to be movably arranged in the thickness direction relative to the carrier to enable the pole piece cleaning device to switch between a first state and a second state. In the first state, the adsorbent is close to the carrier so that the magnetic force of the adsorbent adsorbs impurities through the carrier; in the second state, the adsorbent is away from the carrier, and the second cleaning component is configured to work to adsorb impurities on the carrier.

[0007] When the pole piece cleaning device of the embodiment of the present application needs to use the second cleaning component to clean the carrier, the adsorption component is controlled to be away from the carrier, so as to avoid the magnetic force of the adsorption component from adversely affecting the cleaning work of the second cleaning component, which is conducive to ensuring the normal cleaning work of the second cleaning component.

[0008] In some embodiments, the carrier includes a first groove-shaped structure and is sleeved on the outside of the adsorbent, and the adsorbent leaves or approaches the carrier through the opening of the first groove-shaped structure. The carrier of the embodiment of the present application includes a first groove-shaped structure, so that the first groove-shaped structure forms a covering on multiple surfaces of the adsorbent, and impurities at different positions can be adsorbed on the carrier, avoiding the problem of impurities being adsorbed on the adsorbent and difficult to clean. Moreover, the adsorbent can enter or leave the groove-shaped cavity of the carrier through the opening of the first groove-shaped structure, thereby approaching or moving away from the carrier, avoiding the magnetism of the adsorbent from adversely affecting the cleaning action of the second cleaning component.

[0009] In some embodiments, the second cleaning component is configured to be movably arranged along the width direction of the pole piece relative to the carrier, and the second cleaning component includes a second groove structure and is sleeved on the outside of the carrier. The negative pressure cavity of the second cleaning component of the embodiment of the present application is configured as a second groove structure, so that the second groove structure is sleeved on the outside of the carrier, thereby achieving all-round cleaning of the carrier. Moreover, the second groove structure is sleeved on the outside of the carrier, and the carrier forms a guiding effect on the movement of the second cleaning component, thereby improving the stability of the movement of the second cleaning component.

[0010] In some embodiments, the carrier is made of stainless steel. The carrier is made of stainless steel to prevent corrosion of the carrier during the cleaning process of the second cleaning component.

[0011] In some embodiments, the second cleaning component includes a negative pressure cavity. The negative pressure cavity is configured to use negative pressure to absorb impurities on the surface of the carrier. The second cleaning component of the electrode cleaning device of the embodiment of the present application is provided with a negative pressure cavity to absorb impurities on the carrier by using negative pressure, so that impurities attached to the carrier due to static electricity or other reasons can be separated from the carrier under the action of negative pressure, thereby achieving a more thorough cleaning of the carrier. A more thorough cleaning of the carrier can also better achieve the cleaning of the electrode, thereby improving the cleaning effect of the electrode.

[0012] In some embodiments, the second cleaning component also includes a scraper disposed in the negative pressure cavity, and the scraper is movably disposed relative to the carrier to scrape off impurities attached to the carrier. The second cleaning component of the embodiment of the present application scrapes off impurities attached to the carrier by providing a scraper. Since the scraper is in direct contact with the carrier and scrapes off impurities attached to the carrier through relative movement, the cleaning efficiency is high and the cleaning effect is good, which is particularly suitable for viscous slurries. Moreover, the scraper of the second cleaning component of the embodiment of the present application is directly disposed inside the negative pressure cavity, so that the impurities scraped off by the scraper can be directly sucked away under the negative pressure of the negative pressure cavity, thereby preventing the impurities from being adsorbed on the pole piece again, further improving the cleaning effect on the pole piece.

[0013] In some embodiments, the second cleaning assembly further comprises a water spraying member, the water spraying member having a water spraying port, the water spraying port being configured to spray water to the carrier before the scraper scrapes off the impurities. By first controlling the water spraying member to spray water to the carrier to wet and soften the slurry, and then scraping off the wetted slurry with the scraper, the cleaning efficiency can be accelerated. Moreover, wetting the slurry first and then scraping off the slurry reduces the difficulty of scraping off and avoids damage to the carrier due to excessive force of the scraper.

[0014] In some embodiments, the carrier is constructed to extend in the width direction of the pole piece, the second cleaning assembly is configured to be movable in the width direction relative to the carrier, and the water spraying member is arranged on the outside of the negative pressure cavity and is located on the downstream side of the negative pressure cavity in the moving direction of the second cleaning assembly. The water spraying member is arranged on the outside of the negative pressure cavity. On the one hand, it can prevent the water sprayed from the water spraying port from being sucked away under the action of the negative pressure before it has time to wet the slurry. On the other hand, it can prevent a large amount of water from being sucked away by the negative pressure of the negative pressure cavity and affecting the working performance of the negative pressure pump that generates the negative pressure. By arranging the water spraying member on the downstream side of the negative pressure cavity, the water spraying member will naturally act on the slurry attached to the carrier before the negative pressure cavity, without the need for logical control of the actions of the water spraying member and the negative pressure cavity, thereby reducing the control difficulty.

[0015] In some embodiments, the second cleaning component also includes a sweeping brush disposed in the negative pressure cavity, the sweeping brush is movably disposed relative to the carrier to sweep away impurities on the carrier, the carrier is constructed to extend in the width direction of the pole piece, the second cleaning component is configured to be movable in the width direction relative to the carrier, and the sweeping brush is disposed on the upstream side of the scraper in the moving direction of the second cleaning component. The cleaning action of the second cleaning component of the embodiment of the present application can be carried out naturally and orderly according to the position setting of each component during the movement of the second cleaning component along the width direction, without the need for logical and orderly control of the various components of the second cleaning component, so the control is simple.

[0016] In some embodiments, the electrode cleaning device includes at least two cleaning mechanisms, and the at least two cleaning mechanisms include a first cleaning mechanism and a second cleaning mechanism respectively arranged on both sides of the electrode, and the first cleaning mechanism and the second cleaning mechanism are staggered in the length direction of the electrode. This makes the positions of the adsorption forces of the first cleaning mechanism and the second cleaning mechanism different in the length direction of the electrode, so that the positions of the adsorption forces can be dispersed, and then the force on the electrode can be dispersed, which is conducive to avoiding the problem of damage to the electrode caused by local force concentration.

[0017] In some embodiments, the first cleaning mechanism and the second cleaning mechanism are configured to be close to each other or far away from each other in the thickness direction. The pole piece cleaning device of the embodiment of the present application makes the first cleaning mechanism and the second cleaning mechanism close to each other or far away from each other, so that when the second cleaning component is needed to clean the carrier of the first cleaning component, the first cleaning mechanism and the second cleaning structure can be far away from each other, thereby achieving distance from the pole piece, avoiding damage to the pole piece caused by the cleaning action of the second cleaning component.

[0018] A second aspect of the present application provides a pole piece production device, including the pole piece cleaning device mentioned above.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application are briefly introduced below. 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 the drawings without creative work.

[0021] Figure 1 It is a simplified structural diagram of the electrode production equipment of some embodiments of the present application.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the electrode cleaning device of some embodiments of the present application.

[0023] Figure 3 It is a schematic diagram of the partially enlarged structure of the pole piece cleaning device in some embodiments of the present application.

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the second cleaning component of the pole piece cleaning device in some embodiments of the present application.

[0025] Figure 5It is a schematic diagram of the internal structure of the second cleaning component of the filter element cleaning device in some embodiments of the present application.

[0026] Figure 6 It is a schematic diagram showing the internal structure of the second cleaning component of the filter element cleaning device of some embodiments of the present application from another angle.

[0027] In the drawings, the drawings are not drawn to scale.

[0028] 200. Pole piece.

[0029] 100. Cleaning organization.

[0030] 10. First cleaning component; 11. Adsorption component; 12. Carrying component; 13. First driving mechanism.

[0031] 20. Second cleaning component; 21. Negative pressure chamber; 22. Scraper; 23. Water spraying member; 231. Water spraying port; 24. Sweeping brush; 25. Negative pressure pipe.

[0032] 300. Second driving mechanism.

[0033] 500. A third driving mechanism.

[0034] X, width direction; Y, thickness direction; Z, length direction. DETAILED DESCRIPTION

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0039] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0040] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0041] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] At present, judging from the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, and aerospace and other fields.

[0043] The battery includes one or more battery cells to provide higher voltage and capacity. The battery cell is the smallest unit that makes up the battery. The battery cell includes an end cap, a shell and an electrode assembly. The electrode assembly is the component in the battery cell where the electrochemical reaction occurs, and the shell may contain one or more electrode assemblies. The electrode assembly is formed by winding or stacking the positive and negative electrode sheets, and a separator is usually provided between the positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active materials constitute the main body of the electrode assembly, and the parts of the positive and negative electrode sheets without active materials each form a pole ear. During the battery charging and discharging process, the positive electrode active material and the negative electrode active material react with the electrolyte, and the pole ears connect the electrode terminals to form a current loop.

[0044] During the production process of the pole piece, impurities such as iron filings will be adsorbed on the surface of the pole piece, which will have an adverse effect on the performance of the pole piece. In the related art, a magnetic bar is used to adsorb impurities such as iron filings attached to the surface of the pole piece. Impurities such as iron filings are adsorbed on the surface of the magnetic bar under the action of magnetic force. If the surface of the magnetic bar cannot be better cleaned, then these impurities adsorbed on the surface of the magnetic bar will have an adverse effect on the adsorption force of the magnetic bar, thereby affecting the cleaning effect of the pole piece.

[0045] Based on the above technical problems, after in-depth research, this application proposes a pole piece cleaning device. Figures 1 to 6 The structures of the electrode cleaning device and the electrode production equipment in some embodiments of the present application are described in detail.

[0046] refer to Figure 1 , the pole piece cleaning device provided in some embodiments of the present application is used to clean the pole piece 200. Figure 2 and Figure 3 , the pole piece cleaning device of some embodiments of the present application includes a cleaning mechanism 100. The cleaning mechanism 100 includes a first cleaning component 10 and a second cleaning component 20. The first cleaning component 10 is arranged beside the pole piece 200 in the thickness direction Y of the pole piece and includes an adsorbent 11 and a carrier 12 arranged on a side of the adsorbent 11 close to the pole piece 200. The adsorbent 11 is configured to utilize magnetic force and adsorb impurities on the pole piece 200 through the carrier 12. The carrier 12 is used to carry impurities. The second cleaning component 20 is arranged beside the carrier 12 and is used to remove impurities from the carrier 12.

[0047] The electrode cleaning device of some embodiments of the present application includes a cleaning mechanism 100. The cleaning mechanism 100 is arranged on one side of the thickness direction Y of the electrode 200 to clean the electrode 200. Figure 1, the electrode cleaning device of some embodiments of the present application includes at least two cleaning mechanisms 100. The at least two cleaning mechanisms 100 include a first cleaning mechanism and a second cleaning mechanism respectively arranged on both sides of the electrode 200, and the first cleaning mechanism and the second cleaning mechanism are staggered in the length direction Z of the electrode 200. In some embodiments not shown in the drawings, the electrode cleaning device may also include one cleaning mechanism 100.

[0048] The electrode piece 200 can be a positive electrode piece or a negative electrode piece.

[0049] refer to Figure 2 and Figure 3 The cleaning mechanism 100 includes a first cleaning component 10 and a second cleaning component 20, wherein the first cleaning component 10 is arranged beside the pole piece 200 and includes an adsorbent 11 and a carrier 12 arranged on the side of the adsorbent 11 close to the pole piece 200, and the adsorbent 11 is used to utilize the adsorption force and adsorb impurities on the pole piece 200 through the carrier 12, that is, the adsorbent 11 of the first cleaning component 10 does not directly adsorb impurities, but the impurities will be adsorbed on the carrier 12 of the first cleaning component 10, and the second cleaning component 20 is used to remove the impurities on the carrier 12.

[0050] In some embodiments, the adsorbent 11 includes a magnetic member. In other embodiments, the adsorbent 11 may also include a negative pressure adsorbent.

[0051] The first cleaning component 10 of the electrode cleaning device of the embodiment of the present application is provided with a carrier 12 on the side of the adsorbent 11 close to the electrode 200, so that the adsorption force of the adsorbent 11 acts on the impurities of the electrode 200 through the carrier 12, and the impurities are adsorbed on the carrier 12. The second cleaning component 20 of the embodiment of the present application is provided beside the carrier 12, so that the impurities on the carrier 12 can be cleaned. The surface of the carrier 12 is cleaned, and the cleaning of the electrode can be better achieved, thereby improving the cleaning effect of the electrode. Further, when the electrode cleaning device of the embodiment of the present application cleans the impurities on the electrode 200, the impurities are adsorbed on the carrier 12 instead of being directly adsorbed on the adsorbent 11. In this way, the second cleaning component 20 can be used to clean the surface of the carrier 12 instead of directly cleaning the surface of the adsorbent 11, so that the second cleaning component 20 can be avoided from directly cleaning the adsorbent 11 and causing damage to the adsorbent.

[0052] like Figure 3As shown, in some embodiments, the adsorbent 11 includes a magnetic member, and the adsorbent 11 is configured to be movably arranged in the thickness direction Y relative to the carrier 12 to enable the pole piece cleaning device to switch between a first state and a second state. In the first state, the adsorbent 11 is close to the carrier 12 so that the magnetic force of the adsorbent 11 adsorbs impurities through the carrier 12; in the second state, the adsorbent 11 is away from the carrier 12, and the second cleaning component is configured to work to adsorb impurities on the carrier 12.

[0053] Specifically, the magnetic component includes a magnetic bar, which is composed of an inner magnetic core and an outer cladding, and the magnetic core includes a cylindrical magnet block and a magnetic conductive sheet.

[0054] Since the adsorbent of the first cleaning assembly 10 of the embodiment of the present application uses magnetic force to adsorb impurities on the surface of the pole piece 200, and the magnetic force of the magnetic member is very strong, in order to avoid the strong magnetic force of the magnetic member from adversely affecting the normal operation of the second cleaning assembly 20, in some embodiments, reference Figure 3 The adsorbent 11 is configured to be movably arranged in the thickness direction Y of the pole piece 200 relative to the carrier 12 so that the pole piece cleaning device switches between a first state and a second state. In the first state, the adsorbent 11 is close to the carrier 12 so that the magnetic force of the adsorbent 11 adsorbs impurities through the carrier 12; in the second state, the adsorbent 11 is away from the carrier 12. And the second cleaning assembly 20 is configured to work to adsorb impurities on the carrier 12.

[0055] refer to Figure 3 , the adsorption member 11 is movable relative to the support member 12 in the thickness direction Y of the pole piece 200, so that the adsorption member 11 is close to or away from the support member 12. Figure 3 In the illustrated embodiment, the first cleaning assembly 10 further includes a first driving mechanism 13 for driving the adsorbent 11 to move, and the first driving mechanism 13 is used to drive the adsorbent 11 to move in the thickness direction Y to move away from or close to the carrier 12. In some other embodiments not shown in the drawings, the carrier 12 may also be movable relative to the adsorbent 11. That is, the carrier 12 and the adsorbent 11 of the embodiment of the present application have relative movement in the thickness direction Y, and the present application does not limit whether the carrier 12 moves or the adsorbent 11 moves, as long as there is relative movement.

[0056] In the first state, the adsorbent 11 is close to the carrier 12, so that the magnetic force of the adsorbent 11 can act on the impurities on the pole piece through the carrier 12 and then adsorb the impurities on the carrier 12. In the second state, when it is necessary to clean the impurities attached to the carrier 12, the adsorbent 11 is controlled to be away from the carrier 12, so that the high magnetism of the adsorbent 11 can be avoided from adsorbing the ferrous substances inside the second cleaning component 20, thereby avoiding adverse effects on the cleaning work. Moreover, when cleaning the carrier 12, the second cleaning component 20 will move along the carrier 12 to achieve all-round cleaning of the carrier 12. When the second cleaning component 20 performs the cleaning operation, by controlling the adsorbent 11 to be away from the carrier 12, the high magnetism of the adsorbent 11 can be avoided from affecting the normal movement of the second cleaning component 20.

[0057] When the pole piece cleaning device of the embodiment of the present application needs to use the second cleaning component 20 to clean the carrier 12, the adsorption component 11 is controlled to be away from the carrier 12, so as to avoid the magnetic force of the adsorption component 11 from adversely affecting the cleaning work of the second cleaning component 20, which is conducive to ensuring the normal cleaning work of the second cleaning component 20.

[0058] In some embodiments, the carrier 12 includes a first slot-shaped structure and is sleeved on the outer side of the adsorption member 11. The adsorption member 11 leaves or approaches the carrier 12 through the opening of the first slot-shaped structure.

[0059] refer to Figure 3 , the carrier 12 includes a first groove-shaped structure. The first groove-shaped structure includes two side walls arranged opposite to each other and a bottom wall arranged between the two side walls. The two side walls and the bottom wall together enclose a groove-shaped cavity, and the adsorbent 11 is arranged in the groove-shaped cavity. In this way, the bottom wall and the two side walls of the first groove-shaped structure can form a covering for multiple surfaces of the adsorbent 11, so that the magnetic force of different positions of the adsorbent 11 can act on the impurities through the carrier 12. In other words, impurities at different positions can be adsorbed on the carrier 12, and the carrier 12 forms a multi-directional protection for the adsorbent 11, avoiding the problem that impurities are adsorbed on the adsorbent and difficult to clean. On the other hand, by setting the carrier 12 as a first groove-shaped structure, the opening of the first groove-shaped structure is arranged opposite to the bottom wall, so that the adsorbent 11 can enter or leave the groove-shaped cavity through the opening, thereby approaching or moving away from the carrier 12. The first groove-shaped structure can not only protect the adsorbent 11, but also realize the relative movement of the adsorbent 11 and the carrier 12 in the thickness direction Y.

[0060] The carrier 12 of the embodiment of the present application includes a first groove structure, so that the first groove structure forms a cover on multiple surfaces of the adsorbent 11, and impurities at different positions can be adsorbed on the carrier 12, avoiding the problem that impurities are adsorbed on the adsorbent and difficult to clean. In addition, the adsorbent 11 can enter or leave the groove cavity through the opening of the first groove structure, and then approach or move away from the carrier 12, avoiding the magnetism of the adsorbent 11 from adversely affecting the cleaning action of the second cleaning component 20.

[0061] As can be seen from the above, the carrier 12 is a first groove structure, so that multiple wall surfaces of the carrier 12 can absorb impurities. Therefore, in order to fully clean the carrier 12, in some embodiments, reference Figure 4 The negative pressure cavity 21 includes a second groove structure and is sleeved on the outer side of the carrier 12 .

[0062] refer to Figure 4 , the negative pressure cavity 21 is set as a second groove structure, so that the shape of the negative pressure cavity 21 is adapted to the shape of the carrier 12, and the negative pressure cavity 21 is covered on the outside of the carrier 12, thereby achieving cleaning of each wall surface of the carrier 12 and optimizing the cleaning effect. Figure 4 The negative pressure cavity 21 has a negative pressure adsorption port, which extends along the extension direction of the second groove structure to form a U-shaped adsorption port, thereby achieving cleaning of each wall surface of the carrier 12. Moreover, the negative pressure cavity 21 is movably arranged in the width direction X of the pole piece 200 relative to the carrier 12. By setting the negative pressure cavity 21 as the second groove structure that matches the shape of the carrier 12, the carrier 12 forms a guiding effect on the movement of the second cleaning component 20, thereby improving the stability of the movement of the second cleaning component.

[0063] The negative pressure chamber 21 of the second cleaning assembly 20 of the embodiment of the present application is configured as a second groove-shaped structure, so that the second groove-shaped structure is sleeved on the outside of the carrier 12, thereby achieving all-round cleaning of the carrier 12. Moreover, the second groove-shaped structure is sleeved on the outside of the carrier 12, and the carrier 12 forms a guide for the movement of the second cleaning assembly 20, thereby improving the stability of the movement of the second cleaning assembly.

[0064] In some embodiments, the carrier 12 is made of stainless steel to prevent the second cleaning component 20 from corroding the carrier 12 during the cleaning process.

[0065] In some embodiments, the second cleaning assembly 20 includes a negative pressure chamber 21. The negative pressure chamber 21 is configured to remove impurities on the surface of the carrier 12 by using negative pressure.

[0066] When the second cleaning assembly 20 of the embodiment of the present application is used to clean impurities on the carrier, refer to Figure 3 The negative pressure chamber 21 is disposed on the carrier 12 to remove impurities on the carrier 12 by negative pressure suction. The second cleaning assembly 20 further includes a negative pressure pipe 25 connected to the negative pressure chamber 21, and the negative pressure pipe 25 is used to connect to a negative pressure pump to maintain the negative pressure of the negative pressure chamber 21.

[0067] The second cleaning component 20 of the electrode cleaning device of the embodiment of the present application is provided with a negative pressure chamber to utilize negative pressure to absorb impurities on the carrier. This allows impurities attached to the carrier due to static electricity or other reasons to be separated from the carrier 12 under the action of negative pressure, thereby achieving a more thorough cleaning of the carrier 12. A more thorough cleaning of the carrier 12 can also better achieve cleaning of the electrode, thereby improving the cleaning effect of the electrode.

[0068] The adsorbent 11 of the first cleaning component 10 of the embodiment of the present application is configured to utilize magnetic force to adsorb impurities on the surface of the pole piece. Controlling the disappearance of the magnetic force of the adsorbent 11 of the first cleaning component 10 can cause most of the impurities to fall off the carrier 12 due to the loss of magnetic force. However, some impurities will still adhere to the carrier 12 due to static electricity or viscosity. For example, the impurities attached to the carrier 12 may be slurry, which is sticky and easily adheres to the carrier 12. The second cleaning component 20 of the embodiment of the present application is proposed for this part of impurities, and utilizes the negative pressure force of the negative pressure chamber to act on the impurities to better clean the carrier 12.

[0069] In order to further improve the cleaning effect of the bearing, refer to Figures 3 to 6 In some embodiments, the second cleaning assembly 20 further includes a scraper 22 disposed in the negative pressure chamber 21. The scraper 22 is movably disposed relative to the carrier 12 to scrape off impurities attached to the carrier 12.

[0070] refer to Figure 4 The scraper 22 is a plate-shaped member that is in direct contact with the carrier 12 and moves relative to the carrier 12 to scrape off impurities attached to the carrier 12. In some embodiments, one end of the scraper 22 close to the carrier 12 may be provided with a tip to better scrape off impurities.

[0071] The second cleaning assembly 20 of the embodiment of the present application scrapes off the impurities attached to the carrier 12 by setting a scraper 22. Since the scraper 22 is in direct contact with the carrier 12 and scrapes off the impurities attached to the carrier 12 by relative movement, the cleaning efficiency is high and the cleaning effect is good, which is particularly suitable for viscous slurries. Moreover, the scraper 22 of the second cleaning assembly 20 of the embodiment of the present application is directly set inside the negative pressure cavity 21, so that the impurities scraped off by the scraper 22 can be directly sucked away under the negative pressure of the negative pressure cavity 21, thereby preventing the impurities from being adsorbed on the electrode again, and further improving the cleaning effect on the electrode.

[0072] Since the dry slurry is relatively hard, to remove the dry slurry adhering to the carrier 12, it is necessary to control the scraper 22 to move back and forth repeatedly or to increase the scraping force. Controlling the scraper 22 to move back and forth repeatedly will result in a long scraping time and low cleaning efficiency. Increasing the scraping force may cause damage to the carrier 12. For this problem, refer to Figures 3 to 6 In some embodiments, the second cleaning assembly 20 further includes a water spraying member 23. The water spraying member 23 has a water spraying port 231. The water spraying port 231 is configured to spray water toward the carrier 12 before the scraper 22 scrapes away impurities.

[0073] refer to Figure 3 and Figure 6 The water spraying member 23 has at least two water spraying ports 231 arranged at intervals to achieve uniform wetting of the carrier 12. Moreover, the water spraying member 23 is arranged outside the negative pressure cavity 21. On the one hand, it can prevent the water sprayed from the water spraying ports 231 from being sucked away under the action of negative pressure before wetting the slurry. On the other hand, it can prevent a large amount of water from being sucked away by the negative pressure of the negative pressure cavity 21 and affecting the working performance of the negative pressure pump that generates the negative pressure.

[0074] Specifically, an atomizing nozzle is provided at the water spray port 231 to form a spray to optimize the wetting effect on the slurry.

[0075] Specifically, the second cleaning assembly 20 of the embodiment of the present application further includes a water pipe and a water pump for supplying water to the water spraying member 23 , and the water pump is used to pump the cleaning water to the water spraying port 231 through the water pipe.

[0076] By first controlling the water spraying member 23 to spray water to the carrier to wet and soften the slurry, and then scraping off the wetted slurry with the scraper 22, the cleaning efficiency can be improved. In addition, wetting the slurry first and then scraping off the slurry reduces the difficulty of scraping off and avoids damage to the carrier 12 due to excessive force of the scraper.

[0077] refer to Figure 2 and Figure 3In some embodiments, the second cleaning assembly 20 is configured to be movable relative to the carrier 12 along the width direction X. The water spraying member 23 is disposed outside the negative pressure chamber 21 and is located on the downstream side of the negative pressure chamber 21 in the moving direction of the second cleaning assembly 20 .

[0078] refer to Figure 2 The first cleaning assembly 10 includes an adsorbent 11 and a carrier 12, and the adsorbent 11 and the carrier 12 extend in the width direction X of the pole piece 200 to clean different positions in the width direction of the pole piece 200. In order to achieve all-round cleaning of the carrier 12, the second cleaning assembly 20 is configured to be movable relative to the carrier 12 along the width direction X. The second cleaning assembly 20 is controlled to move relative to the carrier 12 in the width direction X to achieve all-round cleaning of different positions of the carrier 12. Further, the water spraying member 23 is arranged on the downstream side of the negative pressure chamber 21, specifically, as Figure 2 As shown, the second cleaning component 20 moves from right to left along the width direction X, and the water spraying member 23 is arranged on the left side of the negative pressure cavity 21, so that the water spraying member 23 sprays water first, and then the negative pressure cavity 21 can move to the area sprayed with water to achieve scraping and suction of the slurry.

[0079] The water spraying member 23 is arranged outside the negative pressure cavity 21. On the one hand, it can prevent the water sprayed from the water spraying port 231 from being sucked away under the action of negative pressure before it has time to wet the slurry. On the other hand, it can prevent a large amount of water from being sucked away by the negative pressure of the negative pressure cavity 21 and affecting the working performance of the negative pressure pump that generates the negative pressure. By arranging the water spraying member 23 on the downstream side of the negative pressure cavity 21, the water spraying member 23 will naturally act on the slurry attached to the carrier 12 before the negative pressure cavity 21, and there is no need to perform logical control on the actions of the water spraying member 23 and the negative pressure cavity 21, thereby reducing the control difficulty.

[0080] In some embodiments, the second cleaning assembly 20 further includes a sweeping brush 24 disposed in the negative pressure chamber 21. The sweeping brush 24 is movably disposed relative to the carrier 12 to sweep away impurities on the carrier 12, the carrier is configured to extend in the width direction of the pole piece, the second cleaning assembly is configured to be movable relative to the carrier in the width direction, and the sweeping brush 24 is disposed on the upstream side of the scraper 22 in the moving direction of the second cleaning assembly 20.

[0081] refer to Figure 4 The sweeping brush 24 is disposed in the negative pressure chamber 21 and is located upstream of the scraper 22 in the moving direction of the second cleaning assembly 20. In this way, the cleaning action of the second cleaning assembly 20 is carried out in an orderly manner, firstly, the water spraying member 23 is used to wet and soften the slurry, then the scraper 22 is used to scrape off the slurry, and then the sweeping brush 24 is used to sweep away the impurities attached to the carrier 12 to separate from the carrier 12, and finally, these impurities are completely sucked out under the action of the negative pressure.

[0082] The cleaning action of the second cleaning component 20 in the embodiment of the present application can be performed naturally and orderly according to the position settings of various components during the movement of the second cleaning component 20 along the width direction, without the need for logical and orderly control of the various components of the second cleaning component 20, so the control is simple.

[0083] refer to Figure 1 In some embodiments, the electrode cleaning device includes at least two cleaning mechanisms 100. The at least two cleaning mechanisms 100 include a first cleaning mechanism and a second cleaning mechanism respectively arranged on both sides of the electrode 200. In the length direction Z of the electrode 200, the first cleaning mechanism and the second cleaning mechanism are staggered. The conveying direction of the electrode 200 is also along its length direction Z. The width direction X of the electrode 200 is perpendicular to the length direction Z.

[0084] The first cleaning mechanism and the second cleaning mechanism of the embodiment of the present application are staggered in the length direction Z of the pole piece 200, that is, the first cleaning mechanism and the second cleaning mechanism are respectively located at different positions in the length direction Z of the pole piece 200, and the positions of the first cleaning mechanism and the second cleaning mechanism in the length direction Z do not overlap. This makes it possible to disperse the positions of the adsorption forces of the first cleaning mechanism and the second cleaning mechanism in the length direction Z of the pole piece 200, so that the positions of the adsorption forces can be dispersed, and then the force on the pole piece 200 can be dispersed, which is conducive to avoiding the problem of damage to the pole piece caused by local force concentration.

[0085] In some embodiments, the first cleaning mechanism and the second cleaning mechanism are configured to be close to each other or away from each other in the thickness direction Y.

[0086] When the cleaning mechanism cleans the electrode, the distance between the first cleaning assembly 10 and the electrode 200 is very small, and the second cleaning assembly 20 is also arranged on the side of the carrier 12 close to the electrode, so the action of the second cleaning assembly 20 can easily cause damage to the electrode. Therefore, when the second cleaning assembly 20 is used to remove impurities on the carrier 12, it is necessary to control the cleaning mechanism to stay away from the electrode to avoid damaging the electrode.

[0087] refer to Figure 3 The pole piece cleaning device also includes a second driving mechanism 300, which is used to drive the first cleaning mechanism and the second cleaning mechanism to move closer to or away from each other. When it is necessary to clean the carrier 12 of the first cleaning component, the second driving mechanism 300 drives the first cleaning mechanism and the second cleaning mechanism to move away from each other so as to move away from the pole piece; after cleaning the carrier 12, the second driving mechanism 300 drives the first cleaning mechanism and the second cleaning mechanism to move closer to each other so as to move closer to the pole piece, thereby cleaning the pole piece.

[0088] In some embodiments, the second driving mechanism 300 includes a cylinder. The cylinder simultaneously drives the first cleaning mechanism and the second cleaning mechanism to move closer to or farther from each other. Specifically, the cylinder can be a double-acting cylinder. Using a single cylinder to drive the two cleaning mechanisms simultaneously can ensure that they move precisely synchronously and move closer to or farther from each other at the same time, thereby ensuring synchronization. In addition, the use of a single cylinder makes the structure of the pole piece cleaning device of the embodiment of the present application relatively simple and occupies less space.

[0089] The electrode cleaning device of the embodiment of the present application makes the first cleaning mechanism and the second cleaning mechanism approach or move away from each other, so that when the second cleaning component is needed to clean the carrier of the first cleaning component, the first cleaning mechanism and the second cleaning mechanism can move away from each other, thereby achieving distance from the electrode, and avoiding damage to the electrode caused by the cleaning action of the second cleaning component. After the cleaning is completed, the first cleaning mechanism and the second cleaning mechanism are controlled to move closer to each other to achieve cleaning of the electrode.

[0090] An embodiment of the present application provides a pole piece production device, including the pole piece cleaning device mentioned above.

[0091] According to the following Figures 1 to 6 The structure and working process of a pole piece cleaning device of a specific embodiment of the present application are described in detail.

[0092] like Figure 1 As shown, the pole piece cleaning device of this embodiment includes two cleaning mechanisms 100. The two cleaning mechanisms 100 are staggered in the length direction Z of the pole piece 200.

[0093] like Figure 2 and Figure 3 As shown, the pole piece cleaning device of this embodiment further includes a second driving mechanism 300 for driving the two cleaning mechanisms 100 to move in the thickness direction Y relative to the pole piece 200 .

[0094] like Figure 2 and Figure 3 As shown, the cleaning mechanism 100 includes a first cleaning assembly 10 and a second cleaning assembly 20, wherein the first cleaning assembly 10 includes an adsorbent 11 and a carrier 12. The adsorbent 11 is movably arranged relative to the carrier 12 in the thickness direction Y, and the first cleaning assembly 10 also includes a first driving mechanism 13 for driving the adsorbent 11 to move.

[0095] The adsorption member 11 of this embodiment includes a magnetic bar and is a permanent magnet.

[0096] The second cleaning assembly 20 includes a negative pressure chamber 21, a scraper 22, a water sprayer 23, a sweeping brush 24 and a negative pressure pipe 25. The water sprayer 23 is arranged on the outside of the negative pressure chamber 21, and the scraper 22 and the sweeping brush 24 are arranged on the inside of the negative pressure chamber 21. The negative pressure pipe 25 is connected to the inner cavity gas of the negative pressure chamber 21 to provide negative pressure. When the negative pressure chamber 21 moves, the scraper 22 and the sweeping brush 24 located inside it and the water sprayer 23 located outside it move synchronously.

[0097] like Figure 3 As shown, the electrode cleaning device of this embodiment further includes a third driving mechanism 500 for driving the second cleaning assembly 20 to move. The third driving mechanism 500 is drivingly connected to the negative pressure chamber 21 to drive the second cleaning assembly 20 to move along the width direction X.

[0098] The first driving mechanism 13 , the second driving mechanism 300 and the third driving mechanism 500 of this embodiment are cylinders.

[0099] After the pole piece cleaning device of the embodiment of the present application is used to clean the pole piece, it is necessary to remove impurities on the carrier 12 , that is, the carrier 12 needs to be cleaned using the second cleaning assembly 20 .

[0100] First, it is necessary to control the second driving mechanism 300 to move so as to control both cleaning mechanisms 100 to be away from the pole piece 200, thereby leaving space for the cleaning action of the second cleaning component 20; and control the first driving mechanism 13 to move so as to keep the adsorbent 11 away from the carrier 12, so as to prevent the strong magnetism of the adsorbent 11 from adsorbing the iron substances in the second cleaning component 20 and thus affecting the normal operation of the second cleaning component 20. Then, the third driving mechanism 500 is controlled to move so as to control the second cleaning component 20 to move on the carrier 12 along the width direction X. During the movement, the water spraying member 23 sprays water to the carrier 12 to wet the slurry, the scraper 22 directly contacts the carrier 12 to scrape off the slurry, and then the sweeping brush 24 cleans the iron filings and impurities. During the action of the scraper 22 and the sweeping brush 24, the negative pressure of the negative pressure chamber 21 continues to act to absorb the slurry and other impurities.

[0101] Specifically, Figure 3 As shown, the second cleaning assembly 20 moves along the guide rail under the drive of the third driving mechanism 500, wherein the guide rail extends along the width direction X, and the second cleaning assembly 20 includes a slider that cooperates with the guide rail, thereby guiding the movement of the second cleaning assembly 20. Similarly, when the first driving mechanism 13 drives the adsorption member 11 away from the carrier 12, the adsorption member 11 is also configured to move along another guide rail to achieve precise control of the moving direction.

[0102] The second cleaning component 20 can complete one cleaning by moving one stroke from right to left along the width direction X. The whole process is fully automated, no manual intervention is required, the cleaning is efficient, and time is saved.

[0103] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pole piece cleaning device for cleaning a pole piece (200), characterized in that: The cleaning device comprises a cleaning mechanism (100), wherein the cleaning mechanism (100) comprises: a first cleaning component (10) arranged beside the pole piece (200) in the thickness direction (Y) of the pole piece (200), and comprising an adsorbent (11) and a carrier (12) arranged on a side of the adsorbent (11) close to the pole piece (200), the adsorbent (11) being configured to absorb impurities on the pole piece by utilizing an adsorption force and through the carrier (12), and the carrier (12) being used to carry the impurities; and The second cleaning component (20) is arranged beside the carrier (12) and is used to remove impurities on the carrier (12).

2. The pole piece cleaning device according to claim 1, characterized in that: The adsorbent (11) comprises a magnetic member, and the adsorbent (11) is configured to be movably arranged in the thickness direction (Y) relative to the carrier (12) so that the pole piece cleaning device can be switched between a first state and a second state. In the first state, the adsorbent (11) is close to the carrier (12) so that the magnetic force of the adsorbent (11) adsorbs impurities through the carrier (12); in the second state, the adsorbent (11) is away from the carrier (12), and the second cleaning component (20) is configured to work to adsorb impurities on the carrier (12).

3. The pole piece cleaning device according to claim 2, characterized in that: The carrier (12) comprises a first groove-shaped structure and is sleeved on the outside of the adsorption member (11); the adsorption member (11) leaves or approaches the carrier (12) through an opening of the first groove-shaped structure.

4. The pole piece cleaning device according to claim 3, characterized in that: The second cleaning assembly (20) is configured to be movably arranged relative to the carrier (12) along the width direction (X) of the pole piece (200), and the second cleaning assembly (20) comprises a second groove structure and is sleeved on the outside of the carrier (12).

5. The pole piece cleaning device according to any one of claims 1 to 4, characterized in that: The carrier (12) is made of stainless steel.

6. The pole piece cleaning device according to any one of claims 1 to 4, characterized in that: The second cleaning component (20) comprises a negative pressure chamber (21), and the negative pressure chamber (21) is configured to use negative pressure to absorb impurities on the surface of the carrier (12).

7. The pole piece cleaning device according to claim 6, characterized in that: The second cleaning component (20) further comprises a scraper (22) disposed in the negative pressure chamber (21); the scraper (22) is movably disposed relative to the carrier (12) to scrape off impurities attached to the carrier (12).

8. The pole piece cleaning device according to claim 7, characterized in that: The second cleaning assembly (20) further comprises a water spraying member (23), wherein the water spraying member (23) has a water spraying port (231), and the water spraying port (231) is configured to spray water toward the carrier (12) before the scraper (22) scrapes away the impurities.

9. The pole piece cleaning device according to claim 8, characterized in that: The carrier (12) is constructed to extend in a width direction (X) of the pole piece (200), the second cleaning assembly (20) is configured to be movable along the width direction (X) relative to the carrier (12), and the water spraying member (23) is arranged outside the negative pressure cavity (21) and is located on a downstream side of the negative pressure cavity (21) in the moving direction of the second cleaning assembly (20).

10. The pole piece cleaning device according to claim 8, characterized in that: The second cleaning component (20) further comprises a sweeping brush (24) disposed in the negative pressure chamber (21), the sweeping brush (24) being movably disposed relative to the carrier (12) to sweep away impurities on the carrier (12), the carrier (12) being constructed to extend in a width direction (X) of the pole piece (200), the second cleaning component (20) being configured to be movable relative to the carrier (12) along the width direction (X), and the sweeping brush (24) being disposed on an upstream side of the scraper (22) in the moving direction of the second cleaning component (20).

11. The pole piece cleaning device according to any one of claims 1 to 4, characterized in that: The pole piece cleaning device comprises at least two cleaning mechanisms (100), wherein the at least two cleaning mechanisms (100) comprise a first cleaning mechanism and a second cleaning mechanism respectively arranged on both sides of the pole piece (200), and in the length direction (Z) of the pole piece, the first cleaning mechanism and the second cleaning mechanism are staggered.

12. The pole piece cleaning device according to claim 11, characterized in that: The first cleaning mechanism and the second cleaning mechanism are configured to be close to each other or away from each other in the thickness direction (Y) of the electrode piece.

13. A pole piece production equipment, characterized in that: Comprising a pole piece cleaning device as claimed in any one of claims 1 to 12.

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