Pole piece processing equipment and battery production system

Abstract

The embodiment of the utility model provides pole piece processing equipment and a battery production system, and relates to the technical field of batteries. The pole piece processing equipment comprises a drying device and a pole piece deformation control device, and the drying device is used for drying the pole piece and is provided with a pole piece outlet for outputting the pole piece; the pole piece deformation control device comprises a rack and at least one control roller assembly installed on the rack, the control roller assembly comprises a first roller frame and a first roller piece, and the first roller piece is used for making contact with one of the two opposite surfaces of the pole piece. The pole piece deformation control device is installed at the pole piece outlet of the drying device, and when the pole piece of the drying device is discharged, the first roller piece can make contact with the surface of the pole piece, so that shaking and deformation of the surface of the pole piece can be limited and controlled, the possibility that the pole piece shakes and deforms during discharging is reduced, and the quality of the pole piece is improved. Therefore, the product yield is improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to an electrode processing equipment and a battery production system. Background Technology

[0002] Battery devices are widely used in electronic devices such as mobile phones, laptops, electric vehicles, electric cars, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and power tools, etc.

[0003] In the battery manufacturing process, the coated electrode sheets need to be dried. Under the influence of the airflow inside the drying equipment, the electrode sheets are prone to shaking or even deformation at the electrode sheet outlet, which affects the quality of the electrode sheets and reduces the product yield. Therefore, how to reduce the possibility of the electrode sheets shaking or deforming at the electrode sheet outlet is a research direction in battery technology. Utility Model Content

[0004] This application provides an electrode processing equipment and a battery production system, which can reduce the possibility of electrode vibration or deformation at the electrode exit.

[0005] In a first aspect, embodiments of this application provide an electrode processing apparatus, including a drying device and an electrode deformation control device. The drying device is used to dry the electrode and has an electrode outlet for outputting the electrode. The electrode deformation control device is used to receive the electrode output from the electrode outlet. The electrode deformation control device includes a frame and at least one control roller assembly mounted on the frame. The control roller assembly includes a first roller frame and a first roller member. The first roller frame is mounted on the frame, and the first roller member is rotatably connected to the first roller frame. The first roller member is used to contact one of the two opposite surfaces of the electrode. The axial direction of the first roller member extends along a first direction, and the axial length of the first roller member is greater than or equal to the dimension of the electrode along the first direction. The first direction intersects the arrangement direction of the control roller assembly to the frame.

[0006] By adopting the above technical solution, the electrode deformation control device is installed at the electrode outlet of the drying device. When the electrode is discharged from the drying device, it can contact the surface of the electrode through the first roller. Since the axial length of the first roller is greater than the size of the electrode along the first direction, the deformation of the electrode surface can be limited and controlled, reducing the possibility of the electrode shaking and deformation during discharge, thereby improving the product yield.

[0007] In some embodiments of this application, the control roller assembly further includes a second roller, which is mounted on the first roller frame and spaced parallel to the first roller, and is used to contact the other of the two opposite surfaces of the electrode.

[0008] By adopting the above technical solution, the control roller assembly is designed to also include a second roller. The first roller and the second roller respectively contact the two opposite surfaces of the electrode, forming a gap or space that limits the electrode, thereby better restricting the possibility of the electrode shaking and deformation.

[0009] In some embodiments of this application, the arrangement directions of the first roller and the second roller intersect the first direction and the arrangement direction of the control roller assembly to the frame, respectively, and there is a gap between the first roller and the second roller along the arrangement direction of the control roller assembly to the frame.

[0010] By adopting the above technical solution, the arrangement direction of the first roller and the second roller is designed so that the horizontal projection of the second roller only partially overlaps or is spaced from the horizontal projection of the first roller. The distance between the first roller and the second roller along their arrangement direction is greater than the distance between the first roller and the second roller along the arrangement direction from the control roller assembly to the frame. Compared with the arrangement of the first roller and the second roller along the fourth direction, it is more convenient for the electrode sheet to enter between the first roller and the second roller.

[0011] In some embodiments of this application, the first roller frame includes a first support assembly and a connecting assembly. The first support assembly is mounted on the frame, and the connecting assembly is mounted on the support assembly. The first roller and the second roller are respectively mounted on the connecting assembly and are capable of rotating about their own axial direction on the connecting assembly.

[0012] By adopting the above technical solution, the first support component is used to connect to the frame, and the first roller and the second roller are installed through the connecting component, which facilitates the assembly of the first roller and the second roller.

[0013] In some embodiments of this application, the connecting component is configured to adjust the spacing between the first roller and the second roller.

[0014] By adopting the above technical solution, the connecting component is configured to adjust the distance between the first roller and the second roller, thereby adjusting the size of the limiting space formed by the two to match electrode sheets of different thicknesses, thus improving the versatility of the device.

[0015] In some embodiments of this application, the first support assembly includes two first support members, the connecting assembly includes two adjusting mechanisms, the two first support members are spaced apart on the frame along the first direction, the two adjusting mechanisms are correspondingly installed on the two first support members, one end of the first roller and one end of the second roller are respectively installed on one of the adjusting mechanisms, and the other end of the first roller and the other end of the second roller are installed on the other adjusting mechanism. The two adjusting mechanisms are used to adjust the distance between the first roller and the second roller.

[0016] By adopting the above technical solution, two pitch adjustment mechanisms are used to drive the first roller and the second roller to move, thereby realizing the pitch adjustment and making the adjustment action more stable.

[0017] In some embodiments of this application, the adjusting mechanism includes a connector, a first linear reciprocating motion component, and a second linear reciprocating motion component. The connector is mounted on the first support component. One end of the first linear reciprocating motion component is mounted on the connector, and the other end is connected to one end of the first roller component. One end of the second linear reciprocating motion component is mounted on the connector, and the other end is connected to one end of the second roller component.

[0018] By adopting the above technical solution, the first support member is connected by a connector, and the first and second linear reciprocating motion members are installed. The structure is compact, and the first roller is moved by the two first linear reciprocating motion members, and the second roller is moved by the two second linear reciprocating motion members. This not only enables the reset of the first and second rollers after the distance between them is adjusted, but also allows the first and second rollers to move independently without interference.

[0019] In some embodiments of this application, the connecting component is mounted on the first support component via a first rotating component. The first rotating component includes a first rotating shaft, the axial direction of which is parallel to the axial direction of the first roller and the axial direction of the second roller, respectively. The connecting component is mounted on the first rotating shaft and configured to rotate about the axial direction of the first rotating shaft.

[0020] By adopting the above technical solution, the connecting assembly is connected to the first rotating shaft, so that the connecting assembly, the first roller and the second roller can rotate around the first rotating shaft. This allows for fine-tuning of the positions of the first roller and the second roller along the second direction and the arrangement direction of the control roller assembly to the frame. This facilitates the adjustment of the distance between the first roller and the second roller and the electrode outlet of the drying device, enabling the control roller assembly to better receive the electrode and control the deformation of the electrode.

[0021] In some embodiments of this application, the connecting component is detachably connected to the first support component, and / or at least one of the first roller and the second roller is detachably connected to the connecting component.

[0022] By adopting the above technical solution, the connecting component is detachably connected to the first support component, which facilitates the disassembly, assembly, and replacement of the whole consisting of the connecting component, the first roller, and the second roller. At least one of the first roller and the second roller is detachably connected to the connecting component, which facilitates the disassembly, assembly, and replacement of the first roller and the second roller.

[0023] In some embodiments of this application, the control roller assembly is configured to be mounted on the frame in a manner that allows it to move along a second direction, which intersects the first direction and the arrangement direction of the control roller assembly to the frame.

[0024] By adopting the above technical solution, the control roller assembly is designed to be able to move along the second direction on the frame, which can facilitate the adjustment of the distance between the control roller assembly and the electrode outlet of the drying device, and also facilitates the adjustment of the spacing between two adjacent control roller assemblies when there are multiple control roller assemblies.

[0025] In some embodiments of this application, the frame includes a support frame, the support frame includes two second support members disposed opposite each other along the first direction, the length of the second support members extending along the second direction, the control roller assembly is connected to at least one of the second support members, the control roller assembly includes a drive assembly connected to the second support member, the drive assembly being used to drive the control roller assembly to move along the second direction on the second support member.

[0026] By adopting the above technical solution, the movement of the drive component on the first support member can be used to drive the control roller assembly to move along the second direction on the first support member, thereby realizing the automation of the movement.

[0027] In some embodiments of this application, the frame includes a second support assembly, a second rotating assembly, and a support frame. The second rotating assembly is mounted on the second support assembly. The second rotating assembly includes a second rotating shaft, the axial direction of which is parallel to the axial direction of the first roller. The support frame is mounted on the second rotating shaft and configured to rotate about the axial direction of the second rotating shaft. The control roller assembly is mounted on the support frame.

[0028] By adopting the above technical solution, the support frame is installed on the second rotating shaft. By rotating the support frame on the second rotating shaft, the receiving angle of the control roller assembly can be easily adjusted, thereby better receiving the electrode sheet.

[0029] In some embodiments of this application, the second rotating shaft is a damped rotating shaft.

[0030] By adopting the above technical solution, the second rotating shaft is designed as a damping rotating shaft, which can automatically achieve fixation after the support frame rotates, without the need to configure a locking structure to lock the rotation of the support frame.

[0031] In some embodiments of this application, the support frame includes two third support members disposed opposite to each other along a second direction, each of the third support members being equipped with a horizontal detection member, the second direction intersecting the first direction and the arrangement direction of the control roller assembly to the frame.

[0032] By using the above technical solution, by installing horizontal detection components on both first support members, it is possible to determine whether the two ends of the support frame along the first direction are offset in the arrangement direction from the control roller assembly to the frame.

[0033] In some embodiments of this application, the frame is configured to drive the control roller assembly to rise and fall.

[0034] By adopting the above technical solution, the frame is designed to drive the control roller assembly to rise and fall, making it convenient to adjust the height of the control roller assembly.

[0035] In some embodiments of this application, there are multiple control roller assemblies, which are spaced apart on the frame along a second direction, the second direction intersecting the first direction and the arrangement direction of the control roller assemblies to the frame.

[0036] By adopting the above technical solution, the number of control roller assemblies is designed to be multiple. Multiple control roller assemblies can sequentially control the deformation of the electrode sheet, further reducing the possibility of shaking and deformation when the electrode sheet is discharged.

[0037] Secondly, embodiments of this application provide a battery production system, including electrode processing equipment as described in any of the above technical solutions. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of the electrode processing equipment provided in some embodiments of this application;

[0040] Figure 2This application provides a schematic diagram of the structure of an electrode deformation control device according to some embodiments;

[0041] Figure 3 for Figure 2 Enlarged view of part A;

[0042] Figure 4 This application provides a partial structural schematic diagram of an electrode deformation control device according to some embodiments;

[0043] Figure 5 for Figure 4 Enlarged view of part b;

[0044] Figure 6 This is a schematic diagram of the structure of another electrode deformation control device provided in some embodiments of this application;

[0045] Figure 7 This is a partial structural schematic diagram of another electrode deformation control device provided in some embodiments of this application.

[0046] The reference numerals in the accompanying drawings for the specific embodiments are as follows:

[0047] 1000. Electrode processing equipment;

[0048] 100. Electrode deformation control device;

[0049] 10. Frame; 11. Support frame; 111. Second support member; 112. Connecting ear; 113. Third support member; 12. Second support assembly; 121. Base; 122. Lifting mechanism; 13. Second rotating assembly; 131. Second rotating shaft; 14. Horizontal detection component;

[0050] 20. Control roller assembly; 21. First roller frame; 211. First support assembly; 2111. First support member; 212. Connecting assembly; 2121. Adjustment mechanism; 21211. Connector; 21212. First linear reciprocating motion member; 21213. Second linear reciprocating motion member; 213. First rotating assembly; 2131. First rotating shaft; 2132. Drive member; 22. First roller; 23. Second roller; 24. Drive assembly;

[0051] 200. Drying device; 210. Drying oven; 220. Electrode outlet;

[0052] X, first direction; Y, second direction; Z, third direction; W, fourth direction. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "including," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0055] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0058] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0059] In this application, "multiple" means two or more (including two).

[0060] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide higher voltage and capacity. For example, the battery mentioned in this application may include a battery module or a battery pack. A battery generally includes a battery housing for encapsulating one or more battery cells. The battery housing can prevent liquids or other foreign matter from affecting the charging or discharging of the battery cells.

[0061] The battery cells mentioned in the embodiments of this application can be lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells, or magnesium-ion battery cells, etc., and the embodiments of this application are not limited in this regard. The battery cells can be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited in this regard either.

[0062] The battery cell mentioned in the embodiments of this application may include an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The battery cell mainly relies on the movement of metal ions between the positive and negative electrode plates to operate. The positive electrode includes a positive current collector and a positive active material layer, with the positive active material layer coated on the surface of the positive current collector. The positive current collector includes a positive electrode coating area and a positive electrode tab connected to the positive electrode coating area. The positive electrode coating area is coated with the positive active material layer, while the positive electrode tab is not coated with the positive active material layer. Taking a lithium-ion battery cell as an example, the material of the positive current collector can be aluminum, and the positive active material layer includes positive active material, which can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer being coated on the surface of the negative electrode current collector. The negative electrode current collector includes a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area. The negative electrode coating area is coated with the negative electrode active material layer, while the negative electrode tab is not coated with the negative electrode active material layer. The material of the negative electrode current collector can be copper, and the negative electrode active material layer includes negative electrode active material, which can be carbon or silicon, etc. The material of the separator can be PP (polypropylene) or PE (polyethylene), etc.

[0063] The battery cells described in this application are applicable to batteries and electrical devices that use batteries. Electrical devices can be vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered vehicles, natural gas-powered vehicles, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. This application does not impose any special limitations on the above-mentioned electrical devices.

[0064] Currently, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace, among other fields. With the continuous expansion of the application areas of power batteries, the market demand is also constantly increasing.

[0065] In the production process of battery devices, the coated single-sided and double-sided anode plates are dried in drying equipment such as ovens. Specifically, the plates are baked from wet film to dry film by the high-temperature air field inside the drying equipment, and finally discharged from the oven outlet.

[0066] However, the negative pressure inside the drying device and the exchange of hot and cold air inside and outside cause the electrode to shake up and down at the outlet of the drying device, resulting in overall or local deformation. This causes quality defects such as local or large-area cracking of the electrode coating area and wrinkling of the electrode tabs, affecting the yield of the lithium battery coating process.

[0067] Therefore, reducing the possibility of quality defects such as cracking and wrinkling in the coating area of ​​the electrode due to vibration or deformation is an important issue in battery production and processing.

[0068] In view of this, this application provides a technical solution, which aims to design an electrode deformation control device installed at the electrode outlet of the drying device. The first roller of the electrode deformation control device is used to control the deformation of the electrode, so as to reduce the possibility of quality defects such as cracking and wrinkling in the coating area caused by vibration or deformation of the electrode.

[0069] The following is in conjunction with the appendix Figure 1-7 The electrode processing equipment 1000 provided in the embodiments of this application will be described.

[0070] Combined with appendix Figure 1 and attached Figure 2 As shown in the figure, this application provides an electrode processing equipment 1000, including a drying device 200 and an electrode deformation control device 100. The drying device 200 is used to dry the electrode and is provided with an electrode outlet 220 for outputting the electrode. The electrode deformation control device 100 includes a frame 10 and at least one control roller assembly 20. The control roller assembly 20 includes a first roller frame 21 and a first roller member 22. The first roller frame 21 is mounted on the frame 10. The first roller member 22 is connected to the first roller frame 21 in a manner that allows it to rotate about its own axial direction. The first roller member 22 is used to contact one of the two opposite surfaces of the electrode at the electrode outlet 220. The axial direction of the first roller member 22 extends along a first direction X. The axial length of the first roller member is greater than or equal to the size of the electrode along the first direction X. The first direction X intersects the arrangement direction of the control roller assembly 20 to the frame 10.

[0071] The drying device 200 includes an oven 210, which has an electrode outlet 220. The oven 210 is equipped with an electrode conveying mechanism and an electrode drying mechanism (not shown in the figure). The drying device 200 is used to dry at least one surface of the electrode.

[0072] In addition, the electrode processing equipment 1000 of this embodiment also includes a coating device (not shown in the figure), which is used to coat the electrode with a current collector. The surface of the coated electrode enters the drying device 200 of this embodiment for drying.

[0073] The electrode deformation control device 100 receives the electrode output from the electrode outlet 220 of the drying device 200. The electrode deformation control device 100 needs to be adjacent to the electrode outlet 220, or have a small gap (e.g., 1mm-100mm), or a part of the structure of the electrode deformation control device 100 can be directly installed at the electrode outlet 220, as long as it can meet the requirement that the control roller assembly 20 can receive the electrode output from the electrode outlet 220.

[0074] The electrode deformation control device 100 includes a frame 10 and a control roller assembly 20. The frame 10 serves as the mounting base for the control roller assembly 20, which is used to improve the stability of the control roller assembly 20 and to ensure that the height of the control roller assembly 20 meets the requirements for receiving the electrode.

[0075] The structure of the rack 10 is not limited; for example, it can be any type of rack 10 structure, such as a frame type, cabinet type, or tabletop type. Some optional embodiments of the rack 10 are given below. The material of the rack 10 can be metals such as aluminum alloy and stainless steel, or non-metals such as plastic.

[0076] The control roller assembly 20 includes a first roller frame 21 and a first roller member 22. The first roller member 22 can be any structure that allows the first roller member 22 to rotate thereon. It can be in the form of a support base or a support frame. Some optional embodiments of the first roller frame 21 are also given below. The material of the control roller assembly 20 can be at least partially made of metal materials such as aluminum alloy and stainless steel, or it can be non-metallic materials such as plastic.

[0077] The first roller 22 refers to a cylindrical roller structure that can rotate around its own axis on the first roller frame 21. The axial length of the first roller 22 is greater than or equal to the dimension of the electrode sheet along the first direction X. The dimension of the electrode sheet along the first direction X can be the overall width of the electrode sheet before it is cut. The first direction X is perpendicular to the conveying direction of the electrode sheet and is generally horizontal. The dimension of the electrode sheet along the first direction X is determined according to the specifications of the specific battery device, for example, it can be 100mm-500mm.

[0078] In some embodiments, the size of the first roller 22 along the first direction X can be designed to be greater than or equal to the size of the electrode outlet 220 of the drying device 200 along the first direction X, so that the first roller 22 can more completely contact the surface of the electrode to control deformation.

[0079] When the electrode passes through the first roller 22, the first roller 22 can contact the surface of the electrode (e.g., the lower or upper surface). The electrode drives the first roller 22 to rotate, thereby reducing the impact of the first roller 22 on the electrode conveying. The first roller 22 can be used to limit and control the deformation of the electrode surface, reducing the possibility of the electrode shaking and deformation during discharge, thereby improving the product yield.

[0080] Combined with appendix Figure 2 and attached Figure 3 As shown, in some examples, the control roller assembly 20 may optionally include a second roller 23 mounted on the first roller frame 21 and spaced parallel to the first roller 22, the second roller 23 being used to contact the other phase of the two opposite surfaces of the electrode.

[0081] The first roller 22 and the second roller 23 have the same or similar structure, and the second roller 23 can also rotate around its own axis on the first roller 22.

[0082] The gap between the first roller 22 and the second roller 23 together forms a gap or space for controlling the deformation of the electrode. The size of this gap can be greater than or equal to the thickness of the electrode. The specific gap size is determined according to the thickness of the electrode, for example, it can be 100μm-500μm, etc. This embodiment will not list them one by one.

[0083] In some embodiments, the second roller 23 is located above the first roller 22, and the second roller 23 is used to contact the upper surface of the electrode, while the first roller 22 is used to contact the lower surface of the electrode and to support the electrode. Of course, the opposite arrangement is also possible.

[0084] The control roller assembly 20 is designed to include a second roller 23. The first roller 22 and the second roller 23 respectively contact the two opposite surfaces of the electrode, forming a gap or space that limits the electrode, thereby better limiting the possibility of the electrode shaking and deformation.

[0085] In some examples, the first roller 22 and the second roller 23 are optionally arranged in directions that intersect the first direction X and the arrangement direction of the control roller assembly 20 to the frame 10, respectively, and there is a gap between the first roller 22 and the second roller 23 along the arrangement direction of the control roller assembly 20 to the frame 10.

[0086] This design places the second roller 23 diagonally above the first roller 22, meaning that the arrangement directions of the first roller 22 and the second roller 23 intersect the first direction X and the arrangement direction of the control roller assembly 20 to the frame 10, respectively, and the first roller 22 and the second roller 23 have a spacing along the arrangement direction of the control roller assembly 20 to the frame 10.

[0087] Specifically, the first roller 22 and the second roller 23 can be arranged at intervals along a third direction Z in the figure. The third direction Z intersects the first direction X and the second direction Y described below, and also intersects the fourth direction W, which is the arrangement direction of the control roller assembly 20 and the frame 10. It should be noted that when the connecting assembly 212 described below in this embodiment rotates on the first support assembly 211, the third direction Z will change. This embodiment only shows one possible third direction Z.

[0088] In this structure, the second roller 23 is located obliquely above the first roller 22. The horizontal projection of the second roller 23 only partially overlaps with the horizontal projection of the first roller 22 or has a gap along the second direction Y. This makes the distance between the first roller 22 and the second roller 23 along the third direction Z greater than the distance between the first roller 22 and the second roller 23 along the fourth direction W. Compared with the arrangement of the first roller 22 and the second roller 23 along the fourth direction W, it is more convenient for the electrode to enter between the first roller 22 and the second roller 23.

[0089] In some examples, the first roller frame 21 may optionally include a first support assembly 211 and a connecting assembly 212. The first support assembly 211 is mounted on the frame 10, the connecting assembly 212 is mounted on the support assembly, and the first roller 22 and the second roller 23 are respectively mounted on the connecting assembly 212 and are respectively rotatable on the connecting assembly 212 about their own axial direction.

[0090] The first support component 211 is a support structure for the control roller assembly 20 and is also used to connect with the frame 10 of this embodiment. The first support component 211 can be a single support base or it can include the two first support members 2111 described below.

[0091] The connecting component 212 is used to dock with the first support component 211, and is also used to mount the first roller 22 and the second roller 23 of this embodiment, and allows the first roller 22 and the second roller 23 to rotate thereon.

[0092] The connecting assembly 212 can have various structural forms. For example, it may include two bearings, one of which is connected to the first roller 22 and the other to the second roller 23. It may also include two rotating shafts, one of which is connected to the first roller 22 and the other to the second roller 23. This embodiment will not list all of these possibilities.

[0093] In this embodiment, the first support component 211 is used to connect to the frame 10, and the first roller 22 and the second roller 23 are installed through the connecting component 212, which facilitates the assembly of the first roller 22 and the second roller 23.

[0094] In some examples, the connecting component 212 is optionally configured to adjust the spacing between the first roller 22 and the second roller 23.

[0095] The connecting component 212 is configured to adjust the distance between the first roller 22 and the second roller 23. This can be understood as the connecting component 212 being able to drive at least one of the first roller 22 and the second roller 23 to move along the aforementioned third direction Z, thereby causing the first roller 22 and the second roller 23 to move closer to or further away from each other, and maintaining the distance between the first roller 22 and the second roller 23 after adjustment.

[0096] The connecting component 212 is configured to adjust the distance between the first roller 22 and the second roller 23, thereby adjusting the size of the limiting space formed by the two to match electrode sheets of different thicknesses, thus improving the versatility of the device.

[0097] In some examples, optionally, the first support assembly 211 includes two first support members 2111, and the connecting assembly 212 includes two adjusting mechanisms 2121. The two first support members 2111 are installed at intervals along a first direction X on the frame 10, and the two adjusting mechanisms 2121 are installed one-to-one with the two first support members 2111. One end of the first roller 22 and one end of the second roller 23 are respectively installed on one of the adjusting mechanisms 2121, and the other end of the first roller 22 and the other end of the second roller 23 are installed on the other adjusting mechanism 2121. The two adjusting mechanisms 2121 are used to adjust the distance between the first roller 22 and the second roller 23.

[0098] The first support member 2111 can be a rod-shaped member or a block-shaped member, etc. The first support member 2111 can be installed and fixed to the frame 10 by welding, bolt connection or other means, or it can be installed on the frame 10 in a way that allows the position to be adjusted along the second direction Y. The way in which the first support member 2111 can be adjusted along the second direction Y on the frame 10 is given below.

[0099] Two first support members 2111 are connected one-to-one with two adjusting mechanisms 2121. The first roller 22 and the second roller 23 are respectively installed on the two adjusting mechanisms 2121. Compared with the method of supporting the first roller 22 and the second roller 23 on one side, the first support members 2111 on both sides can provide more stable support for the adjusting mechanism 2121, the first roller 22 and the second roller 23.

[0100] The first roller 22 and the second roller 23 are moved by two adjusting mechanisms 2121, thereby adjusting the spacing and making the adjustment action more stable.

[0101] The adjusting mechanism 2121 in this embodiment also has various structural forms. For example, the adjusting mechanism 2121 may have multiple connecting holes along its length direction (the third direction Z in the figure) (this embodiment is not shown in the figure). The distance between the first roller 22 and the second roller 23 can be adjusted by connecting them to different connecting holes. Alternatively, the first roller 22 and the second roller 23 can be connected to opposite ends of linear reciprocating motion components such as cylinders, electric cylinders, and hydraulic cylinders.

[0102] Combined with appendix Figure 4 and 5 As shown, in some examples, optionally, the adjusting mechanism 2121 includes a connector 21211, a first linear reciprocating motion member 21212, and a second linear reciprocating motion member 21213. The connector 21211 is mounted on the first support member 2111. One end of the first linear reciprocating motion member 21212 is mounted on the connector, and the other end is connected to one end of the first roller member 22. One end of the second linear reciprocating motion member 21213 is mounted on the connector, and the other end is connected to one end of the second roller member 23.

[0103] The connector 21211 can be a connecting block, connecting plate or other structure. Two connectors 21211 are connected to two first support members 2111 in a one-to-one correspondence. The connection method can be a fixed connection, a detachable connection or a rotatable connection.

[0104] The first linear reciprocating motion component 21212 may include the aforementioned cylinder, electric cylinder, hydraulic cylinder, etc., and may also include structures such as ball screws and crank connecting rods.

[0105] The two linear motion parts of the two first linear reciprocating motion members 21212 along the first direction X are respectively connected to the two ends of the first roller 22, and the first roller 22 is allowed to rotate about its own axis. The two linear motion parts of the two second linear reciprocating motion members 21213 along the first direction X are respectively connected to the two ends of the second roller 23, and the first roller 22 is allowed to rotate about its own axis.

[0106] When adjustment is required, the two first linear reciprocating motion components 21212 drive the first roller 22 to move along the third direction Z, and the two second linear reciprocating motion components 21213 drive the second roller 23 to move along the third direction Z, thereby making the first roller 22 and the second roller 23 move closer or further apart.

[0107] By using the first linear reciprocating motion member 21212 and the second linear reciprocating motion member 21213 to drive the first roller 22 and the second roller 23 to move along the third direction Z respectively, the speed of the first roller 22 and the second roller 23 can be adjusted faster than by installing the first roller 22 and the second roller 23 at both ends of only one linear reciprocating motion member.

[0108] The above structure uses connector 21211 to connect the first support 2111 and to install the first linear reciprocating motion component 21212 and the second linear reciprocating motion component 21213. The structure is compact, and the first roller 22 is moved by the two first linear reciprocating motion components 21212, and the second roller 23 is moved by the two second linear reciprocating motion components 21213. This not only enables the reset of the first roller 22 and the second roller 23 after the distance between them is adjusted, but also allows the first roller 22 and the second roller 23 to move independently without interference.

[0109] Combined again with the appendix Figure 4 and 5 As shown, in some examples, optionally, the connecting assembly 212 is mounted on the first support assembly 211 via a first rotating assembly 213, the first rotating assembly 213 including a first rotating shaft 2131, the axial direction of the first rotating shaft 2131 being parallel to the axial direction of the first roller 22 and the axial direction of the second roller 23, the connecting assembly 212 being mounted on the first rotating shaft 2131 and configured to be rotatable about the axial direction of the first rotating shaft 2131.

[0110] The connecting component 212 is axially rotatable about the first rotation axis 2131 and needs to maintain its rotated state after rotation.

[0111] When the connecting component 212 of this embodiment includes the connecting member 21211, the first linear reciprocating motion member 21212 and the second linear reciprocating motion member 21213, the connecting member 21211 of this embodiment is connected to the first rotating shaft 2131 and can rotate around the axial direction of the first rotating shaft 2131.

[0112] There are several ways in which the connecting component 212 can rotate axially around the first rotating shaft 2131. For example, the connecting component 212 can be rotated by rotating the first rotating shaft 2131. At this time, the first rotating shaft 2131 can be connected to a driving component 2132, which can include a motor. The motor drives the first rotating shaft 2131 to rotate, thereby driving the connecting component 212 to rotate.

[0113] Alternatively, the connecting component 212 can rotate directly around the first rotating axis 2131, while the first rotating axis 2131 is fixed. In this case, the connecting component 212 needs other driving structures to move (this implementation is not shown in the figure).

[0114] Connecting the connecting assembly 212 to the first rotating shaft 2131 allows the connecting assembly 212, the first roller 22, and the second roller 23 to rotate around the first rotating shaft 2131. This enables fine-tuning of the positions of the first roller 22 and the second roller 23 along the second direction Y and the arrangement direction of the control roller assembly 20 to the frame 10. This facilitates adjusting the distance between the first roller 22 and the second roller 23 and the electrode outlet 220 of the drying device 200, allowing the control roller assembly 20 to better receive the electrode and control its deformation.

[0115] In some examples, the connecting component 212 may optionally be detachably connected to the first support component 211, and / or at least one of the first roller 22 and the second roller 23 may be detachably connected to the connecting component 212.

[0116] The connecting component 212 is detachably connected to the first support component 211. In some embodiments, the connecting member 21211 can be detachably connected to the first support component 2111. For example, the connecting member 21211 can be plugged into or snapped into the first rotating shaft, which satisfies the requirement of being detachable without affecting the ability of the connecting member 21211 to rotate in the first support component 211.

[0117] For example Figure 2 The two control roller assemblies 20 are each a double roller assembly including a first roller 22 and a second roller 23. When it is necessary to replace one of the double roller assemblies with... Figure 6 and 7 When only the first roller 22 is shown as a single roller assembly, the connection between the connecting assembly 212 and the first support assembly 211 can be removed.

[0118] The detachable connection of at least one of the first roller 22 and the second roller 23 to the connecting assembly 212 can include three implementation methods: one is that only the first roller 22 is detachably connected to the connecting assembly 212, the second is that only the second roller 23 is detachably connected to the connecting assembly 212, and the third is that the first roller 22 and the second roller 23 are detachably connected to the connecting assembly 212 respectively.

[0119] There are several ways to detachably connect the first roller 22 to the connecting assembly 212. For example, the roller shaft of the first roller 22 can be inserted or snapped onto the first linear reciprocating motion member 21212 mentioned above, without affecting the rotation of the first roller 22. The same applies to the detachable connection between the second roller 23 and the connecting assembly 212.

[0120] In this embodiment, the connecting component 212 is detachably connected to the first support component 211, which facilitates the disassembly, assembly, and replacement of the whole consisting of the connecting component 212, the first roller 22, and the second roller 23. At least one of the first roller 22 and the second roller 23 is detachably connected to the connecting component 212, which facilitates the disassembly, assembly, and replacement of the first roller 22 and the second roller 23.

[0121] In conjunction with 2, 4, 6 and 7, in some examples, the control roller assembly 20 is optionally configured to be mounted on the frame 10 in a manner that allows it to move along a second direction Y, which intersects the first direction X and the arrangement direction of the control roller assembly 20 to the frame 10.

[0122] The control roller assembly 20 is mounted on the frame 10 in such a way that it can move along the second direction Y. This means that the control roller assembly 20 can move along the second direction Y on the frame 10 and maintain its own stability after moving.

[0123] In some embodiments, the second direction Y is perpendicular to the first direction X, both of which can be horizontal, and the arrangement direction of the control roller assembly 20 to the frame 10 (the fourth direction W) can be vertical.

[0124] The control roller assembly 20 is designed to move along the second direction Y on the frame 10, which makes it easy to adjust the distance between the control roller assembly 20 and the electrode outlet 220 of the drying device 200, and also makes it easy to adjust the spacing between two adjacent control roller assemblies 20 when there are multiple control roller assemblies 20.

[0125] In some examples, the frame 10 may optionally include a support frame 11, the support frame 11 including two second supports 111 disposed opposite each other along a first direction X, the length of the second supports 111 extending along a second direction Y, a control roller assembly 20 connected to at least one of the second supports 111, the control roller assembly 20 including a drive assembly 24 connected to the second supports 111, the drive assembly 24 being used to drive the control roller assembly 20 to move along the second direction Y on the second supports 111.

[0126] The support frame 11 can be a rectangular frame or other shapes (such as hexagonal, trapezoidal, etc.). The support frame 11 is mainly used to install the first roller frame 21 in this embodiment. Taking the rectangular support frame 11 in the figure as an example, it includes four second support members 111 connected end to end.

[0127] When the first roller frame 21 includes two first support members 2111, one of the two second support members 111 opposite each other along the first direction X is used to install one of the first support members 2111, and the other second support member 111 is used to install the other first support member 2111. The bottom of both first support members 2111 is connected to a drive assembly 24. By driving the first support member 2111 to move on the second support member 111 through the drive assembly 24, the control roller assembly 20 can be driven to move on the first support member 2111 along the second direction Y, thereby realizing the automation of movement.

[0128] The drive assembly 24 in this embodiment has various structural forms. For example, a rack is provided on the second support member 111. The drive assembly 24 includes a first motor and a gear (not shown in the figure) that are connected by transmission. The gear meshes with the rack, and the first motor is used to drive the gear to rotate. Thus, the rotation of the gear is converted into linear motion of the first support member 2111 along the second direction Y through the meshing of the gear and the rack.

[0129] For example, the drive assembly 24 may include structures such as electric wheels or tracks, which can also enable the first support member 2111 to move along the second support member 111 in the second direction Y. Alternatively, the drive assembly 24 may include linear motion structures such as cylinders, electric rods, and hydraulic cylinders, which drive the first support member 2111 to move along the second support member 111 in the second direction Y. This embodiment will not elaborate further on these examples.

[0130] Combined with appendix Figure 2 and 3As shown, in some examples, optionally, the frame 10 includes a second support assembly 12, a second rotating assembly 13, and a support frame 11. The second rotating assembly 13 is mounted on the second support assembly 12 and includes a second rotating shaft 131. The axial direction of the second rotating shaft 131 is parallel to the axial direction of the first roller 22. The support frame 11 is mounted on the second rotating shaft 131 and configured to rotate about the axial direction of the second rotating shaft 131. The control roller assembly 20 is mounted on the support frame 11.

[0131] The second support component 12 may include a support frame, a support platform, or a lifting frame. The second support component 12 serves as the support foundation for the entire support structure. Optional structural forms of the second support component 12 are given below.

[0132] The second rotating component 13 is mounted on the second support component 12. The second rotating shaft 131 of the second rotating component 13 is connected to the support frame 11. In some embodiments, the second rotating shaft 131 may be mounted on the upper end of the second support component 12, and the lower side of the support frame 11 may be provided with two connecting ears 112 that engage with the second rotating shaft 131.

[0133] The support frame 11 can rotate around the second rotation axis 131, in which case other driving structures are needed to drive the support frame 11 to rotate (this embodiment is not shown in the figure). Alternatively, the support frame 11 can rotate synchronously with the second rotation axis 131. In this case, the second rotation axis 131 can rotate passively or be driven to rotate by a driving structure.

[0134] The support frame 11 is mounted on the second rotating shaft 131. By rotating the support frame 11 on the second rotating shaft 131, the receiving angle of the control roller assembly 20 can be easily adjusted, thereby better receiving the electrode sheet.

[0135] In some examples, the second rotation axis 131 is optionally a damped rotation axis.

[0136] A damped shaft is a shaft structure that requires a certain external force to rotate and can maintain its state after rotation. It typically includes an inner shaft, a damping element, and an outer shaft that are sequentially nested together. The damping element restricts the rotation of the inner shaft relative to the outer shaft. The outer shaft can be mounted on the second support assembly 12 mentioned above, and the inner shaft is used to connect to the support frame 11 of this embodiment.

[0137] The second rotating shaft 131 is designed as a damped rotating shaft. When rotating, the angle of the support frame 11 can be adjusted by the operator or the drive structure pushing the support frame 11 to rotate.

[0138] After the support frame 11 rotates, it can be automatically fixed after rotation, without the need to configure a locking structure to lock the rotation of the support frame 11.

[0139] In some examples, the support frame 11 may optionally include two third supports 113 disposed opposite each other along the second direction Y, each third support 113 having a horizontal detection element 14 mounted on it, the second direction Y intersecting the first direction X and the arrangement direction of the control roller assembly 20 to the frame 10 respectively.

[0140] The reason for configuring the horizontal detection component 14 is that the support frame 11 in this embodiment can rotate, and it is necessary to detect whether the support frame 11 after rotation has shifted at both ends along the first direction X. In addition, it is also necessary to detect whether the frame 10 and the support frame 11 as a whole have shifted along the first direction X.

[0141] Therefore, in this embodiment, a horizontal detection component 14 is installed on the two third support members 113 along the second direction Y. As long as these two third support members 113 remain horizontal, it can be determined that the two ends of the support frame along the first direction X do not have an up-down state.

[0142] The level detection element 14 can be any level detection instrument or level detector in the related art, such as a bubble level, which will not be listed one by one in this embodiment.

[0143] In this embodiment, by installing horizontal detection elements 14 on both third support members 113, it is possible to determine whether the two ends of the support frame 11 along the first direction X are offset in the arrangement direction from the control roller assembly 20 to the frame 10.

[0144] In some examples, the frame 10 is optionally configured to drive the control roller assembly 20 to rise and fall.

[0145] When the frame 10 of this embodiment includes the second support component 12, the second rotating component 13 and the support frame 11 as described above, the second support component 12 can be designed as a liftable structure.

[0146] In some embodiments, the second support component 12 of this embodiment includes a base 121 and a lifting mechanism 122. The lifting mechanism 122 may include a cylinder, electric cylinder or hydraulic cylinder or other structure that can drive the support frame 11 to rise and fall.

[0147] Taking the lifting mechanism 122 including an electric cylinder as an example, the cylinder body of the electric cylinder is mounted on the base 121, and the piston rod of the electric cylinder is mounted on the aforementioned second rotating shaft 131.

[0148] In this embodiment, the frame 10 is designed to drive the control roller assembly 20 to rise and fall, so as to facilitate the adjustment of the height of the control roller assembly 20.

[0149] In some examples, optionally, there are multiple control roller assemblies 20, which are spaced apart on the frame 10 along a second direction Y, which intersects the first direction X and the arrangement direction of the control roller assemblies 20 to the frame 10.

[0150] The number of control roller assemblies 20 can be two or more. Multiple control roller assemblies 20 can be installed at intervals along the second direction Y in the figure on the support frame 11, so that the deformation of the electrode sheets flowing out of the discharge inlet can be controlled in sequence, further reducing the possibility of shaking and deformation when the electrode sheets are discharged.

[0151] Taking the two control roller assemblies 20 in the figure as an example, they can be as follows: Figure 2 and 4 Each control roller assembly 20 shown has a first roller 22 and a second roller 23, or may be as follows: Figure 6 and 7 One of the control roller assemblies 20 shown has a first roller 22 and a second roller 23, while the other control roller assembly 20 has only a first roller 22. Of course, the specific arrangement of multiple control roller assemblies 20 is not limited to this, and this embodiment will not list them one by one.

[0152] Based on the electrode processing equipment 1000 described above, this application provides a battery production system including the electrode processing equipment 1000 as described in the above technical solution.

[0153] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application.

[0154] Combined with appendix Figure 1-7As shown in the figure, this application provides an electrode processing equipment 1000, including a drying device 200 and an electrode deformation control device 100. The drying device 200 is used to dry the electrode and is provided with an electrode outlet 220 for outputting the electrode. The electrode deformation control device 100 is used to receive the electrode output from the electrode outlet 220. The electrode deformation control device 100 includes a frame 10 and at least one control roller assembly 20 mounted on the frame 10. The control roller assembly 20 includes a first roller frame 21 and a first roller member 22. The first roller frame 21 is mounted on the frame 10. The first roller member 22 is connected to the first roller frame 21 in a manner that allows it to rotate about its own axial direction. The first roller member 22 is used to contact one of the two opposite surfaces of the electrode. The axial direction of the first roller member 22 extends along a first direction X. The axial length of the first roller member 22 is greater than or equal to the size of the electrode along the first direction X. The first direction X intersects the arrangement direction of the control roller assembly 20 to the frame 10. The control roller assembly 20 also includes a second roller 23, which is mounted on the first roller frame 21 and spaced parallel to the first roller 22. The second roller 23 is used to contact the other of the two opposite surfaces of the electrode. The arrangement directions of the first roller 22 and the second roller 23 intersect the first direction X and the arrangement direction from the control roller assembly 20 to the frame 10, respectively, and there is a gap between the first roller 22 and the second roller 23 along the arrangement direction from the control roller assembly 20 to the frame 10. The first roller frame 21 includes a first support assembly 211 and a connecting assembly 212. The first support assembly 211 is mounted on the frame 10, and the connecting assembly 212 is mounted on the support assembly. The first roller 22 and the second roller 23 are respectively mounted on the connecting assembly 212 and are rotatable about their own axial direction on the connecting assembly 212. The connecting assembly 212 is configured to adjust the gap between the first roller 22 and the second roller 23. The first support assembly 211 includes two first support members 2111, and the connecting assembly 212 includes two adjusting mechanisms 2121. The two first support members 2111 are installed at intervals along the first direction X on the frame 10. The two adjusting mechanisms 2121 are installed one-to-one on the two first support members 2111. One end of the first roller 22 and one end of the second roller 23 are respectively installed on one of the adjusting mechanisms 2121, and the other end of the first roller 22 and the other end of the second roller 23 are installed on the other adjusting mechanism 2121. The two adjusting mechanisms 2121 are used to adjust the distance between the first roller 22 and the second roller 23. The adjusting mechanism 2121 includes a connector 21211, a first linear reciprocating motion component 21212, and a second linear reciprocating motion component 21213. The connector 21211 is mounted on the first support component 2111. One end of the first linear reciprocating motion component 21212 is mounted on the connector 21211, and the other end is connected to one end of the first roller component 22. One end of the second linear reciprocating motion component 21213 is mounted on the connector 21211, and the other end is connected to one end of the second roller component 23.The connecting assembly 212 is mounted on the first support assembly 211 via a first rotating assembly 213. The first rotating assembly 213 includes a first rotating shaft 2131, the axial direction of which is parallel to the axial direction of the first roller 22 and the second roller 23, respectively. The connecting assembly 212 is mounted on the first rotating shaft 2131 and configured to rotate about the axial direction of the first rotating shaft 2131. The connecting assembly 212 is detachably connected to the first support assembly 211, and / or at least one of the first roller 22 and the second roller 23 is detachably connected to the connecting assembly 212. The control roller assembly 20 is configured to be mounted on the frame 10 in a manner movable along a second direction Y, which intersects the first direction X and the arrangement direction of the control roller assembly 20 to the frame 10, respectively. The frame 10 includes a support frame 11, which includes two second support members 111 disposed opposite each other along a first direction X. The length of the second support members 111 extends along a second direction Y. A control roller assembly 20 is connected to at least one of the second support members 111. The control roller assembly 20 includes a drive assembly 24 connected to the second support member 111. The drive assembly 24 is used to drive the control roller assembly 20 to move along the second direction Y on the second support member 111. The frame 10 includes a second support assembly 12, a second rotating assembly 13, and a support frame 11. The second rotating assembly 13 is mounted on the second support assembly 12 and includes a second rotating shaft 131. The axial direction of the second rotating shaft 131 is parallel to the axial direction of the first roller member 22. The support frame 11 is mounted on the second rotating shaft 131 and configured to rotate about the axial direction of the second rotating shaft 131. The control roller assembly 20 is mounted on the support frame 11. The second rotating shaft 131 is a damped rotating shaft. The support frame 11 includes two third support members 113 arranged opposite each other along a second direction Y. A horizontal detection member 14 is mounted on each third support member 113. The second direction Y intersects the first direction X and the arrangement direction of the control roller assembly 20 to the frame 10. The frame 10 is configured to drive the control roller assembly 20 to move up and down. There are multiple control roller assemblies 20, which are spaced apart along the second direction Y on the frame 10. The second direction Y intersects the first direction X and the arrangement direction of the control roller assemblies 20 to the frame 10.

[0155] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A pole piece processing apparatus characterized by, The application relates to a drying device for drying an electrode sheet, comprising an electrode sheet outlet for outputting the electrode sheet; and an electrode sheet deformation control device for receiving the electrode sheet output by the electrode sheet outlet, comprising a frame and at least one control roller assembly mounted on the frame, wherein the control roller assembly comprises a first roller frame mounted on the frame and a first roller member rotatably connected to the first roller frame, the first roller member being used to contact one of the two opposite surfaces of the electrode sheet, the axial direction of the first roller member extending in a first direction, the axial length of the first roller member being greater than or equal to the size of the electrode sheet in the first direction, and the first direction intersecting the arrangement direction of the control roller assembly to the frame. The control roller assembly further comprises a second roller member mounted on the first roller frame and arranged in parallel with the first roller member, the second roller member being used to contact the other of the two opposite surfaces of the electrode sheet. The arrangement directions of the first roller member and the second roller member respectively intersect the first direction and the arrangement direction of the control roller assembly to the frame, and the first roller member and the second roller member are spaced apart in the arrangement direction of the control roller assembly to the frame.

2. The pole piece processing apparatus according to claim 1, characterized by, The first roller frame comprises a first support assembly mounted on the frame and a connecting assembly mounted on the support assembly, and the first roller member and the second roller member are respectively mounted on the connecting assembly and can be rotatably connected to the connecting assembly.

3. The pole piece processing apparatus according to claim 2, characterized by, The connecting assembly is configured to adjust the distance between the first roller member and the second roller member.

4. The pole piece processing apparatus of claim 2, wherein The first support assembly comprises two first support members, the connecting assembly comprises two distance adjusting mechanisms, the two first support members are spaced apart in the first direction and mounted on the frame, the two distance adjusting mechanisms are respectively mounted on the two first support members, one end of the first roller member and one end of the second roller member are respectively mounted on one of the distance adjusting mechanisms, and the other end of the first roller member and the other end of the second roller member are mounted on the other distance adjusting mechanism, and the two distance adjusting mechanisms are used to adjust the distance between the first roller member and the second roller member.

5. The pole piece processing apparatus of claim 4, wherein The distance adjusting mechanism comprises a connecting member, a first linear reciprocating member and a second linear reciprocating member, the connecting member is mounted on the first support member, one end of the first linear reciprocating member is mounted on the connecting member, and the other end is connected to one end of the first roller member, one end of the second linear reciprocating member is mounted on the connecting member, and the other end is connected to one end of the second roller member.

6. The pole piece processing apparatus of claim 5, wherein The connecting assembly is mounted on the first support assembly through a first rotating assembly, the first rotating assembly comprises a first rotating shaft, the axial direction of the first rotating shaft is parallel to the axial direction of the first roller member, the connecting assembly is mounted on the first rotating shaft and is configured to be rotatable around the axial direction of the first rotating shaft.

7. The pole piece processing apparatus of claim 6, wherein ​ 8. The pole piece processing apparatus of claim 4, wherein ​ 9. The pole piece processing apparatus of claim 4, wherein The connecting assembly is detachably connected to the first supporting assembly, and / or at least one of the first roller member and the second roller member is detachably connected to the connecting assembly.

10. The pole piece processing apparatus of claim 1, wherein The control roller assembly is configured to be mounted to the rack in a manner capable of moving along a second direction, the second direction being respectively intersected with the first direction and an arrangement direction of the control roller assembly to the rack.

11. The pole piece processing apparatus of claim 10, wherein The rack comprises a supporting frame, the supporting frame comprising two second supporting members oppositely arranged along the first direction, the second supporting members extending along the second direction, the control roller assembly being connected to at least one of the second supporting members, the control roller assembly comprising a driving assembly connected to the second supporting member, the driving assembly being used to drive the control roller assembly to move on the second supporting member along the second direction.

12. The pole piece processing apparatus according to any one of claims 1 to 11, characterized by, The rack comprises a second supporting assembly, a second rotating assembly and a supporting frame, the second rotating assembly being mounted to the second supporting assembly, the second rotating assembly comprising a second rotating shaft, an axial direction of the second rotating shaft being parallel to the axial direction of the first roller member, the supporting frame being mounted to the second rotating shaft and being configured to be capable of rotating around the axial direction of the second rotating shaft, the control roller assembly being mounted to the supporting frame.

13. The pole piece processing apparatus of claim 12, wherein, The second rotating shaft is a damping rotating shaft.

14. The pole piece processing apparatus of claim 12, wherein, The supporting frame comprises two third supporting members oppositely arranged along a second direction, each of the third supporting members being mounted with a level detecting member, the second direction being respectively intersected with the first direction and an arrangement direction of the control roller assembly to the rack.

15. The pole piece processing apparatus of any one of claims 1-11, wherein, The rack is configured to be capable of driving the control roller assembly to ascend and descend.

16. The pole piece processing apparatus of any one of claims 1-11, wherein, The number of the control roller assemblies is multiple, the multiple control roller assemblies being mounted to the rack along a second direction, the second direction being respectively intersected with the first direction and an arrangement direction of the control roller assembly to the rack.

17. A battery production system characterized by comprising: An apparatus for processing pole pieces, comprising any one of claims 1-16.

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