Battery pole piece gluing device and preparation method of battery pole piece

Abstract

The invention provides a battery pole piece gluing device and a preparation method of a battery pole piece. The battery pole piece gluing device comprises a mounting plate, an adjusting mechanism and a gluing mechanism, the adjusting mechanism is arranged on the mounting plate. The gluing mechanism is connected to the adjusting mechanism and used for gluing the surface of the pole piece, the adjusting mechanism is at least used for driving the gluing mechanism to get close to or get away from the pole piece in the first direction, and the first direction is parallel to the thickness direction of the pole piece. The reliability of the battery can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and in particular to a glue coating device for battery electrodes and a preparation method for battery electrodes. Background Art

[0002] Battery cells are widely used in electronic devices, such as mobile phones, laptop computers, battery cars, electric vehicles, electric airplanes, electric ships, electric toy cars, electric toy ships, electric toy airplanes, and electric tools, etc. Battery cells can include nickel-cadmium battery cells, nickel-metal hydride battery cells, lithium-ion battery cells, and secondary alkaline zinc-manganese battery cells, etc.

[0003] In the development of battery technology, how to improve the reliability of batteries has always been a research direction in battery technology. Summary of the Invention

[0004] In view of the above problems, the present application provides a glue coating device for battery electrodes and a preparation method for battery electrodes, which can improve the reliability of batteries.

[0005] On the one hand, an embodiment of the present application provides a glue coating device for battery electrodes, which includes a mounting plate, an adjustment mechanism, and a glue coating mechanism. The adjustment mechanism is arranged on the mounting plate. The glue coating mechanism is connected to the adjustment mechanism and is used for coating glue on the surface of the electrode. The adjustment mechanism is at least used to drive the glue coating mechanism to approach or move away from the electrode along a first direction, and the first direction is parallel to the thickness direction of the electrode.

[0006] In the above solution, the glue material is coated on the glue coating area through the glue coating die head of the glue coating device to form a glue layer. However, the transmission of the electrode and the vibration generated by the transmission device itself may cause the thickness of the electrode to be different during glue coating, resulting in a decrease in the protection performance of the glue layer on the edge of the electrode in the local glue coating area. Even the defects generated at the edge of the electrode are not completely wrapped by the glue layer, resulting in the electrode piercing the adjacent electrode, thereby affecting the reliability of the battery.

[0007] In some embodiments, the adjustment mechanism is used to drive the glue coating mechanism to move along a second direction, and the second direction is parallel to the width direction of the electrode, so as to improve the coating accuracy of the glue coating area, reduce the possibility of deviation between the glue coating area and the glue layer, improve the reliability of the battery electrode, and further improve the reliability of the battery.

[0008] In some embodiments, the adjustment mechanism includes a guide rail assembly. The guide rail assembly includes a first guide rail extending along the first direction and a second guide rail extending along the second direction. The first guide rail is movably connected to the second guide rail along the second direction, and the glue coating mechanism is movably connected to the first guide rail along the first direction.

[0009] In the above solution, the movable connections are made through guide rails in multiple different directions, simplifying the position adjustment method of the gluing mechanism, reducing the manufacturing difficulty of the battery electrode sheet gluing device, and reducing the production cost.

[0010] In some embodiments, the adjusting mechanism is movably connected to the mounting plate at least along a third direction, and the third direction is arranged parallel to the length direction of the electrode sheet.

[0011] In the above solution, the movable directions for the adjusting mechanism to drive the gluing mechanism are simplified, and some of the movable directions are set between the adjusting mechanism and the mounting plate to simplify the structure of the adjusting mechanism itself, thereby miniaturizing the adjusting mechanism.

[0012] In some embodiments, the adjusting mechanism further includes a driving component and a transmission component. The driving component drives the gluing mechanism to slide along the first guide rail and drives the first guide rail to slide along the second guide rail through the transmission component.

[0013] In the above solution, while enabling the movement of the guide rail assembly, the adjusting mechanism can adjust its own position to improve the working efficiency of the battery electrode sheet gluing device.

[0014] In some embodiments, the transmission component includes at least one of a transmission member and a transmission part. The transmission member is a split structure with the guide rail assembly. The transmission member is used to drive the gluing mechanism to slide along the first guide rail and drive the first guide rail to slide along the second guide rail under the drive of the driving component. The transmission part is an integral structure with the guide rail assembly. The transmission member is used to drive the second guide rail to slide along the third direction under the drive of the driving component.

[0015] In the above solution, the setting of the transmission member is beneficial to the maintenance of the battery electrode sheet gluing device. The setting of the transmission part can reduce the space occupied by the transmission component in the battery electrode sheet gluing device, which is beneficial to the miniaturization of the battery electrode sheet gluing device.

[0016] In some embodiments, the transmission component further includes a rotating member. The driving component drives the rotating member to be rotatably arranged with a rotation axis parallel to the third direction, and the rotating member is fixedly connected to the gluing mechanism.

[0017] In the above solution, the rotating member can drive the gluing mechanism to rotate to adjust the angle between the coating direction of the gluing mechanism and the first direction, which is beneficial to improving the flatness of the surface of the glue layer after coating.

[0018] In some embodiments, the rotatable angle of the rotating member relative to the reference line is 0° to 30°. The reference line is parallel to the first direction.

[0019] In the above solution, while improving the flatness of the glue layer, the coating speed of the gluing mechanism is increased.

[0020] In some embodiments, the glue application mechanism includes a glue supply member, an application member, a channel connecting the glue supply member and the application member, and a heating member that heats the channel.

[0021] In the above solution, the heating member can heat the channel so that the medium in the channel can maintain a flowing state, reducing the possibility of channel blockage and improving the reliability of the battery electrode sheet glue application device.

[0022] In some embodiments, the battery electrode sheet glue application device further includes a support roller, and the support roller and the glue application mechanism are arranged opposite to each other in a first direction.

[0023] In the above solution, the support roller can support the electrode sheet, reducing the possibility that the medium in the glue application area flows to the non-glue application area during the glue application process by the glue application mechanism.

[0024] In some embodiments, the support roller is arranged on an adjustment mechanism, and the support roller can move along with the movement of the adjustment mechanism, so that the relative position between the support roller and the glue application mechanism remains unchanged, further reducing the possibility that the medium in the glue application area flows to the non-glue application area.

[0025] In some embodiments, the support roller includes a positioning surface for arranging the electrode sheet, and the application member is arranged opposite to the positioning surface.

[0026] In the above solution, it is beneficial to improve the support force of the support roller on the electrode sheet when the application member applies the medium, further reducing the possibility that the medium in the glue application area flows to the non-glue application area.

[0027] In some embodiments, the support roller includes a first support roller and a second support roller arranged at intervals, and the application member includes an application part, and the orthographic projection of the application part in the first direction is located between the orthographic projection of the first support roller in the first direction and the orthographic projection of the second support roller in the first direction.

[0028] In the above solution, while providing a support force for the electrode sheet, it reduces the possibility that the battery electrode sheet glue application device is affected by external vibrations, causing the application member to vibrate and squeeze the electrode sheet, resulting in electrode sheet rupture, and improving the production yield of the electrode sheet.

[0029] In some embodiments, the battery electrode sheet glue application device further includes a collection box, the collection box is arranged on the mounting plate, and the mounting plate includes a positioning part for arranging the electrode sheet, and the positioning part and the collection port of the collection box are arranged side by side.

[0030] In the above solution, it is beneficial for the medium in the glue application mechanism to be discharged when the glue application mechanism is in a shutdown state, reducing the possibility that the medium solidifies in the glue application mechanism and causes blockage of the glue application mechanism, and improving the cleanliness of the battery electrode sheet glue application device.

[0031] In some embodiments, the battery electrode sheet gluing device further includes a feeding device, a control module, a deviation correction detection device, and a feedback device. The feeding device is used to convey the electrode sheet. The control module communicates with the adjustment mechanism. The deviation correction detection device is located between the feeding device and the adjustment mechanism. The deviation correction detection device communicates with the feedback device, and the deviation correction detection device detects the position information of the electrode sheet. The feedback device is used to feed back the detection information of the deviation correction detection device to the control module, and the control module controls the adjustment mechanism to drive the gluing mechanism to move.

[0032] In the above solution, it is ensured that the position of the medium coated by the gluing mechanism on the electrode sheet remains consistent, reducing the possibility of missed coating or applying excess medium to the gluing area or non-gluing area.

[0033] In some embodiments, the battery electrode sheet gluing device further includes a temperature monitoring device. The temperature monitoring device is used to detect the temperature of the medium in the gluing mechanism, and the temperature monitoring device communicates with the control module.

[0034] In the above solution, the possibility of the medium in the gluing mechanism solidifying is reduced, the possibility of the gluing mechanism being blocked is reduced, and it is also possible that the heating element does not need to heat the channel all the time, which is beneficial to improving the efficiency of the heating element and reducing energy loss.

[0035] In some embodiments, the battery electrode sheet gluing device further includes a self-cleaning device. The self-cleaning device is arranged on the mounting plate. The self-cleaning device and the gluing mechanism are spaced apart in the second direction. The self-cleaning device communicates with the control module to clean the gluing mechanism.

[0036] In the above solution, setting the self-cleaning device can achieve automatic cleaning of the gluing mechanism, reducing the possibility of the glue layer being too thick or medium drawing during gluing.

[0037] In a second aspect, an embodiment of the present application provides a method for preparing a battery electrode sheet. The steps of the method are as follows: Traction the electrode sheet through the gluing mechanism. Adjust the relative position between the gluing mechanism and the electrode sheet. The gluing mechanism applies glue to the electrode sheet.

[0038] In some embodiments, the step of adjusting the relative position between the gluing mechanism and the electrode sheet includes: obtaining the position information of the electrode sheet. Transmitting the position information to the adjustment mechanism. Based on the position information, driving the gluing mechanism to move to the target position through the adjustment mechanism.

[0039] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are hereinafter specifically exemplified. Description of the Drawings

[0040] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the embodiments of the present application. Obviously, the accompanying drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0041] Figure 1 It is a schematic structural diagram of a battery pole piece gluing device provided by an embodiment of the present application;

[0042] Figure 2 It is a schematic structural diagram of a gluing mechanism and a support roller provided by an embodiment of the present application;

[0043] Figure 3 It is a schematic structural diagram of another battery pole piece gluing device provided by an embodiment of the present application:

[0044] Figure 4 It is a schematic structural diagram of another battery pole piece gluing device provided by an embodiment of the present application:

[0045] Figure 5 It is a schematic structural diagram of a gluing mechanism provided by an embodiment of the present application;

[0046] Figure 6 It is a schematic structural diagram of another gluing mechanism and a support roller provided by an embodiment of the present application;

[0047] Figure 7 It is a schematic diagram of a battery pole piece gluing device provided by an embodiment of the present application;

[0048] Figure 8 It is a schematic structural diagram of another battery pole piece gluing device provided by an embodiment of the present application;

[0049] Figure 9 It is a flowchart of a method for preparing a battery pole piece provided by an embodiment of the present application;

[0050] Figure 10 It is a flowchart of a method for preparing a battery pole piece provided by an embodiment of the present application.

[0051] In the accompanying drawings:

[0052] 10. Mounting plate;

[0053] 20. Adjusting mechanism; 21. Guide rail assembly; 211. First guide rail; 212. Second guide rail; 22. Driving assembly; 221. First driving member; 222. Second driving member; 223. Third driving member; 224. Fourth driving member; 23. Transmission assembly; 231. First transmission member; 232. Second transmission member; 24. Rotating member;

[0054] 30. Gluing mechanism; 31. Glue supply component; 32. Smearing component; 321. Smearing part; 33. Heating component; 34. Channel; 40. Support roller; 41. First support roller; 42. Second support roller; 43. Positioning surface;

[0055] 100. Feeding device; 200. Control module; 300. Deviation correction detection device; 400. Feedback device; 500. Temperature monitoring device; 600. Self-cleaning device;

[0056] X, First direction, Y, Second direction; Z, Third direction. Detailed implementation manners

[0057] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled 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" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0059] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality of" means more than two unless otherwise specifically defined.

[0060] Referring to "embodiments" herein means that specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0061] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the front and back associated objects.

[0062] In the description of the embodiments of the present application, the term "a plurality" means two or more (including two). Similarly, "a plurality of groups" means two or more groups (including two groups), and "a plurality of sheets" means two or more sheets (including two sheets).

[0063] In the description of the embodiments of the present application, for technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0064] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside 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 specific situations.

[0065] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more extensive. 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 transportation such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand is also continuously increasing.

[0066] The edge of the electrode sheet has a gluing area. During the gluing process, the glue material is coated on the gluing area through the gluing die head of the gluing device to form a glue layer. However, the transmission of the electrode sheet and the vibration generated by the transmission device itself may cause differences in the thickness of the electrode sheet during gluing, resulting in a decrease in the protection performance of the glue layer on the edge of the electrode sheet in the local gluing area. Even the defects generated on the edge of the electrode sheet are not completely wrapped by the glue layer, resulting in the electrode sheet piercing the adjacent electrode sheet, thereby affecting the reliability of the battery.

[0067] In view of this, the present application provides a technical solution, which adjusts the position of the gluing mechanism through an adjustment mechanism to improve the uniformity of the glue layer thickness during the gluing process of the electrode sheet, thereby improving the protection performance of the edge of the electrode sheet and the reliability of the battery.

[0068] Figure 1It is a schematic structural diagram of a battery electrode sheet gluing device provided by an embodiment of the present application. Figure 2 It is a schematic structural diagram of a gluing mechanism and a support roller provided by an embodiment of the present application.

[0069] Referring to Figure 1 and Figure 2 An embodiment of the present application provides a battery electrode sheet gluing device, which includes a mounting plate 10, an adjusting mechanism 20, and a gluing mechanism 30. The adjusting mechanism 20 is arranged on the mounting plate 10. The gluing mechanism 30 is connected to the adjusting mechanism 20 and is used for gluing on the surface of the electrode sheet. The adjusting mechanism 20 is at least used to drive the gluing mechanism 30 to approach or move away from the electrode sheet along a first direction X, and the first direction X is parallel to the thickness direction of the electrode sheet.

[0070] In some examples, the battery electrode sheet gluing device is arranged on a production line as a process device on the production line. The mounting plate 10 of the battery electrode sheet gluing device can be fixed to the mounting position on the production line to reduce the possibility that the relative position between the battery electrode sheet gluing device and the mounting position on the production line changes or separates under the action of external forces. Optionally, the mounting plate 10 can be a flat plate structure. As an example, the mounting plate 10 can have grooves and mounting holes to facilitate the fixation of the mounting plate 10 to the mounting position on the production line. Optionally, the grooves provided on the mounting plate 10 can also be used to store a part of the structure in the battery electrode sheet gluing device.

[0071] The adjusting mechanism 20 can be fixedly connected to the mounting plate 10 by welding, riveting, bolt connection, etc. Or, the adjusting mechanism 20 can also be movably connected to the mounting plate 10 through structures such as a lead screw and a belt-shaped tooth column.

[0072] The adjusting mechanism 20 can be used to support the gluing mechanism 30 so that the gluing mechanism 30 can glue the surface of the electrode sheet at a preset position. Optionally, during the gluing process of the electrode sheet, in order to improve production efficiency, the electrode sheet can be conveyed through a transportation structure such as a conveyor belt so that the gluing mechanism 30 can continuously glue the electrode sheet. Due to the layout problem of the production line, the positions of the electrode sheet at different positions on the production line are different. In the embodiment of the present application, the first direction X is parallel to the thickness direction of the electrode sheet during gluing.

[0073] Optionally, the adjusting mechanism 20 can drive the gluing mechanism 30 to approach or move away from the electrode sheet along the first direction X. Of course, the adjusting mechanism 20 can also drive the gluing mechanism 30 to approach or move away from the electrode sheet along other directions, or drive the gluing mechanism 30 to move from a first position of the electrode sheet to a second position of the electrode sheet.

[0074] Optionally, the medium in the gluing mechanism 30 is in a liquid state, a gaseous state, or a solid-liquid mixed state in the gluing mechanism 30 and forms a solid film layer after being coated on the gluing area of the electrode sheet.

[0075] Optionally, the coating direction of the glue coating mechanism 30 and the first direction X may be parallel, or the coating direction of the glue coating mechanism 30 and the first direction X form a preset included angle. It can be understood that the coating direction is the direction in which the medium flows out of the glue coating mechanism 30 to the surface of the electrode sheet.

[0076] In the battery electrode sheet glue coating device provided by the embodiment of the present application, the glue material is coated on the glue coating area through the glue coating die head of the glue coating device to form a glue layer. However, the transmission of the electrode sheet and the vibration generated by the transmission device itself may cause differences in the thickness of the electrode sheet during glue coating, resulting in a decrease in the protection performance of the glue layer on the edge of the electrode sheet in the local glue coating area. Even the defects generated at the edge of the electrode sheet are not completely wrapped by the glue layer, resulting in the electrode sheet piercing the adjacent electrode sheet, thereby affecting the reliability of the battery.

[0077] Figure 3 It is a schematic structural diagram of another battery electrode sheet glue coating device provided by the embodiment of the present application.

[0078] In some embodiments, please refer to Figure 1 and Figure 3 , the adjusting mechanism 20 is further configured to drive the glue coating mechanism 30 to move along the second direction Y, and the second direction Y is parallel to the width direction of the electrode sheet, so as to improve the coating accuracy of the glue coating area, reduce the possibility of deviation between the glue coating area and the glue layer, improve the reliability of the battery electrode sheet, and further improve the reliability of the battery.

[0079] In the embodiment of the present application, the second direction Y is parallel to the width direction of the electrode sheet during glue coating. Optionally, the first direction X and the second direction Y intersect. As an example, the first direction X and the second direction Y intersect.

[0080] In some embodiments, please refer to Figure 1 and Figure 3 , the adjusting mechanism 20 includes a guide rail assembly 21. The guide rail assembly 21 includes a first guide rail 211 extending along the first direction X and a second guide rail 212 extending along the second direction Y. The first guide rail 211 is movably connected to the second guide rail 212 along the second direction Y, and the glue coating mechanism 30 is movably connected to the first guide rail 211 along the first direction X.

[0081] The first guide rail 211 extends along the first direction X, and the second guide rail 212 extends along the second direction Y. The first guide rail 211 can move on the second guide rail 212 along the second direction Y, thereby driving the glue coating mechanism 30 to move along the second direction Y to adjust the relative position between the glue coating mechanism 30 and the width direction of the electrode sheet. The glue coating mechanism 30 can move on the first guide rail 211 along the first direction X to move the glue coating mechanism 30 away from or close to the electrode sheet, so as to adjust the glue coating thickness.

[0082] In the embodiments of the present application, the movable connections are made through guide rails in multiple different directions, simplifying the position adjustment method of the glue application mechanism 30, reducing the manufacturing difficulty of the battery pole piece glue application device, and reducing the production cost.

[0083] Figure 4 FIG. 4 is a schematic structural diagram of another battery pole piece glue application device provided by the embodiments of the present application.

[0084] In some embodiments, please refer to Figure 1 、 Figure 3 and Figure 4 The adjusting mechanism 20 is movably connected to the mounting plate 10 at least along the third direction Z, and the third direction Z is parallel to the length direction of the pole piece.

[0085] The adjusting mechanism 20 moves on the mounting plate 10 at least along the third direction Z. As an example, the mounting plate 10 may be provided with a groove or a guide rail extending along the third direction Z, at least a part of the adjusting mechanism 20 is located in the groove or the guide rail, and the adjusting mechanism 20 moves along the extending direction of the groove or the guide rail.

[0086] It can be understood that the third direction Z is parallel to the length direction of the pole piece during glue application. Optionally, the first direction X, the second direction Y, and the third direction Z are pairwise intersecting. Exemplarily, the first direction X, the second direction Y, and the third direction Z are pairwise perpendicular.

[0087] Through the above settings, the embodiments of the present application simplify the movable directions for the adjusting mechanism 20 to drive the glue application mechanism 30, and set some of the movable directions between the adjusting mechanism 20 and the mounting plate 10 to simplify the structure of the adjusting mechanism 20 itself, thereby miniaturizing the adjusting mechanism 20.

[0088] In some embodiments, please refer to Figure 3 and Figure 4 The adjusting mechanism 20 further includes a driving component 22 and a transmission component 23. The driving component 22 drives the glue application mechanism to slide along the first guide rail and drives the first guide rail to slide along the second guide rail through the transmission component 23.

[0089] Optionally, the driving component 22 includes a motor.

[0090] Optionally, the transmission component 23 includes one or more combinations of a lead screw, a nut, a plate member with a threaded hole matching the thread of the lead screw, and a strip-shaped rack and a gear.

[0091] The driving component 22 can drive the glue application mechanism to slide along the first guide rail and drive the first guide rail to slide along the second guide rail through the transmission component 23. Optionally, the driving component 22 can include a first driving member 221, a second driving member 222, and a third driving member 223. The transmission component 23 includes a first transmission member 231, a second transmission member 232, and a third transmission member. The first driving member 221 and the glue application mechanism 30 are connected to the first guide rail 211 through the first transmission member 231, and the first driving member 221 drives the first transmission member 231 to move the glue application mechanism 30 on the first guide rail 211. The second driving member 222 and the first guide rail 211 are connected to the second guide rail 212 through the second transmission member 232, and the second driving member 222 drives the second transmission member 232 to move the first guide rail 211 on the second guide rail 212. The third driving member 223 and the second guide rail 212 are connected to the mounting plate 10 through the third transmission member, so that the second guide rail 212 can move on the mounting plate 10.

[0092] Optionally, the first driving member 221 can be arranged on one side of the first guide rail 211 along the first direction X. The second driving member 222 can be arranged on one side of the second guide rail 212. The third driving member 223 can be arranged on the mounting plate 10.

[0093] Optionally, at least part of the first transmission member 231 can be arranged on the first guide rail 211. At least part of the second transmission member 232 can be arranged on the second guide rail 212, and at least part of the third transmission member can be arranged on the mounting plate 10.

[0094] As an example, the first transmission member 231 includes a first lead screw and a first plate member with a threaded hole matching the thread of the lead screw. The first lead screw extends along the extending direction of the first guide rail 211. One side of the first plate member is fixedly connected to the glue application mechanism 30. The threaded hole of the first plate member is sleeved on the first lead screw, and the other side of the first plate member is movably connected to the first guide rail 211.

[0095] As an example, the second transmission member 232 includes a second lead screw and a second plate member with a threaded hole matching the thread of the lead screw. The second lead screw extends along the extending direction of the second guide rail 212. One side of the second plate member is fixedly connected to the first guide rail 211. The threaded hole of the second plate member is sleeved on the second lead screw, and the other side of the second plate member is movably connected to the second guide rail 212.

[0096] As an example, the third transmission member includes a third lead screw and a third plate member with a threaded hole matching the thread of the lead screw. The third lead screw extends along the extending direction of the third direction Z. One side of the third plate member is fixedly connected to the second guide rail 212. The threaded hole of the third plate member is sleeved on the third lead screw, and the other side of the third plate member is movably connected to the mounting plate 10.

[0097] In the embodiments of the present application, through the above settings, while enabling the movement of the guide rail assembly 21, the adjusting mechanism 20 can adjust its position by itself to improve the working efficiency of the battery pole piece coating device.

[0098] In some embodiments, please refer to Figure 3 and Figure 4 , the transmission assembly 23 includes at least one of a transmission member and a transmission part. The transmission member is a split structure with the guide rail assembly 21. The transmission member is used to drive the coating mechanism to slide along the first guide rail and drive the first guide rail to slide along the second guide rail under the drive of the drive assembly. The transmission part is an integral structure with the guide rail assembly 21. The transmission member is used to drive the second guide rail to slide along the third direction under the drive of the drive assembly.

[0099] Optionally, the transmission member may include one or more combinations of a lead screw, a nut, and a plate member with a threaded hole matching the thread of the lead screw.

[0100] Optionally, the transmission part may include one or more combinations of a strip-shaped rack and a gear.

[0101] Optionally, the transmission part may be arranged on the guide rail assembly 21 or the mounting plate 10. Exemplarily, the transmission part includes a strip-shaped rack arranged on the second guide rail 212. A third driving member and a gear may be arranged on the mounting plate 10. The gear is driven to rotate by the third driving member so that the gear meshes with the strip-shaped rack to drive the second guide rail 212 to move along the third direction Z on the mounting plate 10.

[0102] In the embodiments of the present application, the setting of the transmission member is beneficial to the maintenance of the battery pole piece coating device. The setting of the transmission part can reduce the space occupied by the transmission assembly 23 in the battery pole piece coating device, which is beneficial to the miniaturization of the battery pole piece coating device.

[0103] Figure 5 It is a schematic structural diagram of a coating mechanism provided by an embodiment of the present application.

[0104] In some embodiments, please refer to Figure 3 and Figure 5 , the transmission assembly 23 further includes a rotating member 24. The rotating member 24 is rotatably arranged with a rotation axis parallel to the third direction Z. The drive assembly 22 drives the rotating member 24 and the coating mechanism 30 to be fixedly connected.

[0105] Optionally, the rotating member 24 can be rotated under the action of the drive assembly 22. For example, the drive assembly 22 includes a fourth driving member 224, and the fourth driving member 224 drives the rotating member 24 to rotate.

[0106] In the embodiments of the present application, the rotating member 24 can drive the gluing mechanism 30 to rotate, so as to adjust the angle between the coating direction of the gluing mechanism 30 and the first direction X, which is beneficial to improving the flatness of the surface of the glue layer after coating.

[0107] In some embodiments, the rotatable angle of the rotating member 24 relative to the reference line is 0° to 30°. The reference line is parallel to the first direction X.

[0108] Taking the coating direction of the gluing mechanism 30 being parallel to the first direction X as the initial position, the rotatable angle of the rotating member 24 relative to the reference line is also the angle between the coating direction of the gluing mechanism 30 and the reference line.

[0109] Optionally, the rotatable angles of the rotating member 24 relative to the reference line include 0°, 5°, 10°, 20°, or 30°.

[0110] Through the above settings, the embodiments of the present application improve the flatness of the glue layer and at the same time increase the coating speed of the gluing mechanism 30.

[0111] Figure 6 It is a schematic structural diagram of another gluing mechanism and a support roller provided by the embodiments of the present application.

[0112] In some embodiments, please refer to Figure 6 , the gluing mechanism 30 includes a glue supply member 31, a coating member 32, a channel 34 connecting the glue supply member 31 and the coating member 32, and a heating member 33. The heating member 33 heats the channel 34.

[0113] Optionally, the glue supply member 31 may include one or a combination of a glue storage tank and a gear pump.

[0114] Optionally, the coating member 32 includes a sealing valve and a glue head. The sealing valve can store the medium pumped into the sealing valve by the gear pump. When stopping working, the sealing valve can be sealed so that the medium is stored in the sealing valve.

[0115] Through the above settings in the embodiments of the present application, the heating member 33 can heat the channel 34 so that the medium in the channel 34 can maintain a flowing state, reduce the possibility of blockage of the channel 34, and improve the reliability of the battery electrode sheet gluing device.

[0116] In some embodiments, please refer to Figure 2 and Figure 6 , the battery electrode sheet gluing device further includes a support roller 40. The support roller 40 and the gluing mechanism 30 are arranged opposite to each other along the first direction X.

[0117] In the design of the electrode sheet, one side or both sides of the electrode sheet need to be coated with glue. When both sides of the electrode sheet need to be coated with glue, a roller structure can be used to move the electrode sheet on the production line, and the moving direction of the electrode sheet can be adjusted by setting the roller structure at different positions. The support roller 40 can support the electrode sheet, which can reduce the possibility that the medium in the coating area flows to the non-coating area during the glue coating process of the coating mechanism 30.

[0118] In some embodiments, the support roller 40 is arranged on the adjusting mechanism 20, and the support roller 40 can move along with the movement of the adjusting mechanism 20, so that the relative position between the support roller 40 and the coating mechanism 30 remains unchanged, further reducing the possibility that the medium in the coating area flows to the non-coating area.

[0119] In some embodiments, please refer to Figure 2 , the support roller 40 includes a positioning surface 43 for arranging the electrode sheet, and the coating member 32 is arranged opposite to the positioning surface 43.

[0120] Optionally, the coating member 32 and the positioning surface 43 are arranged opposite to each other along the first direction X.

[0121] Optionally, the positioning surface 43 of the support roller 40 can be the surface for carrying the electrode sheet, the support roller 40 can roll along with the movement of the electrode sheet, and the positioning surface 43 of the support roller 40 can be a cylindrical surface.

[0122] Through the above settings in the embodiments of the present application, it is beneficial to improve the supporting force of the support roller 40 on the electrode sheet when the coating member 32 coats the medium, and further reduce the possibility that the medium in the coating area flows to the non-coating area.

[0123] In some embodiments, please refer to Figure 6 , the support roller 40 includes a first support roller 41 and a second support roller 42 arranged at intervals, the coating member 32 includes a coating portion 321, and the orthographic projection of the coating portion 321 along the first direction X is located between the orthographic projection of the first support roller 41 along the first direction X and the orthographic projection of the second support roller 42 along the first direction X.

[0124] Optionally, the first support roller 41 and the second support roller 42 can be arranged at intervals along the second direction Y, that is, the first support roller 41 and the second support roller 42 are arranged at intervals along the length direction of the electrode sheet.

[0125] In the embodiments of the present application, the medium can flow out from the coating portion 321. Optionally, the coating portion 321 can be a rubber head.

[0126] The orthographic projection of the coating part 321 in the first direction X is located between the orthographic projection of the first support roller 41 in the first direction X and the orthographic projection of the second support roller 42 in the first direction X. That is, the medium flowing out of the coating part 321 can fall on the pole piece between the first support roller 41 and the second support roller 42.

[0127] Through the above settings, the embodiments of the present application provide a supporting force for the pole piece, while reducing the possibility that the battery pole piece coating device is affected by external vibration, causing the coating part 32 to vibrate and squeeze the pole piece, resulting in the pole piece breaking, and improving the production yield of the pole piece.

[0128] In some embodiments, the battery pole piece coating device further includes a collection box. The collection box is arranged on the mounting plate 10. The mounting plate 10 includes a positioning part for setting the pole piece. The positioning part and the collection port of the collection box are arranged side by side.

[0129] The collection box is arranged on the mounting plate 10. The collection box may include a collection port and a collection space. The collection space can be used to store the waste glue of the coating mechanism 30.

[0130] Optionally, the collection port of the collection box and the positioning part are arranged side by side in the second direction Y. When the coating mechanism 30 needs to discharge waste glue, only need to move the coating mechanism 30 above the collection port along the second direction Y to discharge the waste glue.

[0131] By setting the collection box in the embodiments of the present application, it is beneficial for the medium in the coating mechanism 30 to be discharged when the coating mechanism 30 is in a shutdown state, reducing the possibility that the medium solidifies in the coating mechanism 30 and causing the coating mechanism 30 to be blocked, and improving the cleanliness of the battery pole piece coating device.

[0132] Figure 7 It is a schematic diagram of a battery pole piece coating device provided by the embodiments of the present application. Figure 8 It is a schematic structural diagram of another battery pole piece coating device provided by the embodiments of the present application.

[0133] In some embodiments, please refer to Figure 7 and Figure 8 , the battery pole piece coating device further includes a feeding device 100, a control module 200, a deviation correction detection device 300 and a feedback device 400. The feeding device 100 is used to convey the pole piece. The control module 200 communicates with the adjustment mechanism 20. The deviation correction detection device 300 is located between the feeding device 100 and the adjustment mechanism 20. The deviation correction detection device 300 communicates with the feedback device 400. The deviation correction detection device 300 detects the position information of the pole piece. The feedback device 400 is used to feed back the detection information of the deviation correction detection device 300 to the control module 200, and the control module 200 controls the adjustment mechanism 20 to drive the coating mechanism 30 to move.

[0134] The feeding device 100 can be used to convey the wound pole pieces along the length direction of the pole pieces for subsequent gluing operations.

[0135] The control module 200 communicates with the battery pole piece gluing device. The control device can control the actions of the battery pole piece gluing device so that the control device controls the position movement of the adjustment mechanism 20 to further adjust the relative position between the gluing mechanism 30 and the pole piece.

[0136] The deviation correction detection device 300 is located between the feeding device 100 and the adjustment mechanism 20. The deviation correction detection device 300 detects the position information of the sheet to determine the specific position of the gluing area of the pole piece conveyed from the feeding device 100. As an example, the deviation correction detection device 300 can detect the edge of the pole piece, calculate the offset with a set initial value, and send the offset to the control module 200 through the feedback device 400. The control module 200 makes the adjustment mechanism 20 act according to the offset to make the gluing mechanism 30 move, so as to ensure that the position of the medium coated by the gluing mechanism 30 on the pole piece remains consistent, reducing the possibility of missed coating or applying excess medium to the gluing area or non-gluing area. Optionally, the deviation correction detection device 300 can also be set downstream of the gluing mechanism 30, that is, detect the pole piece after gluing. After detecting an abnormality, it can be fed back to the control module 200 through the feedback device 400, and the control module 200 can also control the marking device to mark the abnormal area.

[0137] Optionally, the deviation correction detection device 300 can include a deviation correction camera and a light source. The deviation correction camera and the light source are arranged on the same side of the pole piece, and the light source illuminates the edge of the pole piece for imaging by the deviation correction camera.

[0138] Optionally, when gluing both sides of the pole piece, deviation correction detection devices 300 and feedback devices 400 need to be arranged on both sides of the pole piece.

[0139] In some embodiments, please refer to Figure 7 , the battery pole piece gluing device further includes a temperature monitoring device 500. The temperature monitoring device 500 is used to detect the temperature of the medium in the gluing mechanism 30, and the temperature monitoring device 500 communicates with the control module 200.

[0140] The temperature monitoring device 500 can detect the temperature of the medium in the gluing mechanism 30 and can feedback the detected temperature to the control module 200. The control module 200 controls the heating element 33 to heat the channel 34 to ensure the fluidity of the medium in the gluing mechanism 30.

[0141] Optionally, a protective member can be arranged on the periphery of the heating element 33 and the temperature monitoring member to reduce the possibility of operators being scalded by the heating element 33.

[0142] Through the above settings, the embodiments of the present application reduce the possibility of medium curing in the gluing mechanism 30, reduce the possibility of blockage of the gluing mechanism 30, and also enable the heating element 33 to not need to heat the channel 34 all the time, which is beneficial to improving the efficiency of the heating element 33 and reducing energy loss.

[0143] In some embodiments, please refer to Figure 1 , the battery electrode sheet gluing device further includes a self-cleaning device 600. The self-cleaning device 600 is arranged on the mounting plate 10. The self-cleaning device 600 and the gluing mechanism 30 are arranged at an interval along the second direction Y. The self-cleaning device 600 communicates with the control module 200 to clean the gluing mechanism 30.

[0144] The self-cleaning device 600 may include a cleaning cloth and a rotating part. The cleaning cloth follows the rotation of the rotating part to replace the cleaning cloth.

[0145] The self-cleaning device 600 and the gluing mechanism 30 are arranged at an interval along the second direction Y. Optionally, the self-cleaning device 600 and the position of the electrode sheet are arranged at an interval along the second direction Y. After the gluing mechanism 30 is used for a period of time, there will be medium residue on the coating part 321 of the gluing mechanism 30. The gluing mechanism 30 can move along the second direction Y to the position where the self-cleaning device 600 is located. The coating part 321 of the gluing mechanism 30 contacts the cleaning cloth, and the residual medium is taken away as the cleaning cloth moves, so as to realize the cleaning of the gluing mechanism 30.

[0146] Optionally, when the gluing mechanism 30 needs to be cleaned, it may also be that the self-cleaning device 600 moves to the position where the gluing mechanism 30 is located. It can be understood that the gluing mechanism 30 moving along the second direction Y to the position where the self-cleaning device 600 is located and the self-cleaning device 600 moving to the position where the gluing mechanism 30 is located means that when the gluing mechanism 30 or the self-cleaning device 600 moves along the second direction Y to a preset position, at the preset position, the cleaning cloth of the self-cleaning device 600 and the coating part 321 are arranged opposite to each other.

[0147] By setting the self-cleaning device 600, the embodiments of the present application can realize automatic cleaning of the gluing mechanism 30, and reduce the possibility of the glue layer being too thick or medium drawing during gluing.

[0148] Figure 9 It is a flowchart of a method for preparing a battery electrode sheet provided by the embodiments of the present application. Figure 10 It is a flowchart of a method for preparing a battery electrode sheet provided by the embodiments of the present application.

[0149] On the other hand, as Figure 8 and Figure 9 shown, the embodiments of the present application provide a method for preparing a battery electrode sheet, and the method includes the following steps.

[0150] S100. The traction pole piece passes through the gluing mechanism.

[0151] Specifically, the pole piece can be tractioned by a feeding device so that the pole piece can pass through the gluing mechanism. Optionally, both sides of the pole piece can be glued, and multiple gluing mechanisms can be arranged on both sides of the pole piece to achieve synchronous gluing of both sides of the pole piece.

[0152] S200. Adjust the relative position between the gluing mechanism and the pole piece.

[0153] Specifically, the position information of the pole piece can be transmitted to the adjustment mechanism by an automated machine so that the adjustment mechanism drives the gluing mechanism to adjust the relative position between the gluing mechanism and the pole piece. Alternatively, the adjustment mechanism can also be directly or indirectly controlled by an operator so that the adjustment mechanism drives the gluing mechanism to adjust the relative position between the gluing mechanism and the pole piece.

[0154] S300. The gluing mechanism glues on the pole piece.

[0155] Specifically, after the relative position between the gluing mechanism and the pole piece is adjusted, the gluing mechanism can glue a preset area of the pole piece.

[0156] In some optional embodiments, please refer to Figure 8 and Figure 10 , the step of adjusting the relative position between the gluing mechanism and the pole piece includes:

[0157] S210. Obtain the position information of the pole piece.

[0158] Specifically, the position information of the pole piece can be detected by a deviation correction detection device. Optionally, the position information can include one or more of the edge position of the area to be glued in the pole piece and the offset between this edge position and the reference position.

[0159] S220. Transmit the position information to the adjustment mechanism.

[0160] Specifically, taking the edge position of the area to be glued in the pole piece as an example of the position information, before the position information is transmitted to the adjustment mechanism, the edge position and the reference position can be compared by a feedback module to calculate the offset. The feedback module can send this edge position and the offset to the control module together, and the control module transmits this edge position and the offset to the adjustment mechanism. It should be noted that the calculated offset can be the moving distance and moving direction of the gluing mechanism. Alternatively, the adjustment mechanism itself can include a calculation model, and the adjustment mechanism obtains the target position of the gluing mechanism according to the calculation model after receiving this edge position.

[0161] S230. Based on the position information, drive the gluing mechanism to move to the target position through the adjustment mechanism.

[0162] Specifically, according to the acquired position information, the adjustment mechanism can drive the glue application mechanism to move from the reference position to the target position, which is the edge position of the area where glue needs to be applied on the pole piece. Further, after glue application, the detection device can be used to detect the glue application area. If a missed glue application area is detected, the detection device can send the position information of the missed glue application area to the control module through the feedback module, and the control module can control the marking device to mark the missed glue application area.

[0163] According to some embodiments of the present application, please refer to Figure 1 、 Figures 3 to 8 , the battery pole piece glue application device includes a mounting plate 10, an adjustment mechanism 20, and a glue application mechanism 30. The adjustment mechanism 20 is arranged on the mounting plate 10. The glue application mechanism 30 is connected to the adjustment mechanism 20 and is used for applying glue on the surface of the pole piece. The adjustment mechanism 20 is at least used to drive the glue application mechanism 30 to approach or move away from the pole piece along the first direction X to adjust the glue application thickness, and the first direction X is parallel to the thickness direction of the pole piece.

[0164] Among them, the adjustment mechanism 20 can be used to drive the glue application mechanism 30 to move along the first direction X and the second direction Y. The adjustment mechanism 20 includes a guide rail assembly 21. The guide rail assembly 21 includes a first guide rail 211 extending along the first direction X and a second guide rail 212 extending along the second direction Y. The first guide rail 211 is movably connected to the second guide rail 212, and the glue application mechanism 30 is movably connected to the first guide rail 211. The adjustment mechanism 20 is at least movably connected to the mounting plate 10 along the third direction Z, and the third direction Z is parallel to the length direction of the pole piece. The first driving member 221 drives the first transmission member 231 to drive the glue application mechanism 30 to move along the first direction X, the second driving member 222 drives the second transmission member 232 to drive the first guide rail 211 to move along the second direction Y, and the third driving member 223 drives the transmission part 233 arranged on the second guide rail 212 to drive the second guide rail 212 to move on the mounting plate 10. The transmission assembly 23 further includes a rotating member 24, and the rotating member 24 is rotatably arranged with a rotation axis parallel to the third direction Z, and the rotating member 24 is fixedly connected to the glue application mechanism 30.

[0165] The glue application mechanism 30 includes a glue supply member 31, a smearing member 32, a channel 34 connecting the glue supply member 31 and the smearing member 32, a heating member 33, and a temperature monitoring device 500. The heating member 33 heats the channel 34. The temperature monitoring device 500 is used for monitoring the temperature of the medium in the channel 34.

[0166] The battery pole piece glue application device further includes a first support roller 41 and a second support roller 42. The smearing member 32 includes a smearing portion 321, and the orthographic projection of the smearing portion 321 along the first direction X is located between the orthographic projection of the first support roller 41 along the first direction X and the orthographic projection of the second support roller 42 along the first direction X.

[0167] The battery electrode coating device further includes a feeding device 100, a control module 200, a deviation correction detection device 300, a feedback device 400, and a self-cleaning device 600. The feeding device 100 is used to convey the electrode. The control module 200 controls the moving direction of the adjusting mechanism 20. The deviation correction detection device 300 is located between the feeding device 100 and the adjusting mechanism 20. The deviation correction detection device 300 communicates with the feedback device 400, and the deviation correction detection device 300 detects the position information of the electrode. The feedback device 400 is used to feed back the detection information of the deviation correction detection device 300 to the control module 200, and the control module 200 controls the adjusting mechanism 20 to drive the coating mechanism 30 to move. The self-cleaning device 600 is arranged on the mounting plate 10. The self-cleaning device 600 and the coating mechanism 30 are arranged at intervals along the second direction. The self-cleaning device 600 communicates with the control module 200 to clean the coating mechanism 30.

[0168] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered by the scope of the claims and the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A glue coating device for battery electrode sheets, characterized in that, Comprising: Mounting plate; Adjusting mechanism, disposed on the mounting plate; Gluing mechanism, connected to the adjusting mechanism and used for gluing on the surface of the pole piece, the adjusting mechanism is at least used to drive the gluing mechanism to approach or move away from the pole piece along a first direction, and the first direction is parallel to the thickness direction of the pole piece.

2. The glue coating device for battery electrode sheets according to claim 1, wherein, The adjusting mechanism is used to drive the gluing mechanism to move along a second direction, and the second direction is parallel to the width direction of the pole piece.

3. The battery electrode sheet gluing device according to claim 2, characterized in that, The adjusting mechanism includes a guide rail assembly, the guide rail assembly includes a first guide rail extending along the first direction and a second guide rail extending along the second direction, the first guide rail is movably connected to the second guide rail along the second direction, and the gluing mechanism is movably connected to the first guide rail along the first direction.

4. The battery electrode sheet gluing device according to claim 3, wherein, The adjusting mechanism is at least movably connected to the mounting plate along a third direction, and the third direction is parallel to the length direction of the pole piece.

5. The battery electrode sheet gluing device according to claim 4, characterized in that, The adjusting mechanism further includes a driving component and a transmission component, and the driving component drives the gluing mechanism to slide along the first guide rail and drives the first guide rail to slide along the second guide rail through the transmission component.

6. The glue coating device for battery electrode sheets according to claim 5, characterized in that, The transmission component includes at least one of a transmission member and a transmission part. The transmission member is a split structure with the guide rail assembly. The transmission member is used to drive the gluing mechanism to slide along the first guide rail and drive the first guide rail to slide along the second guide rail under the drive of the driving component; the transmission part is an integral structure with the guide rail assembly, and the transmission member is used to drive the second guide rail to slide along the third direction under the drive of the driving component.

7. The glue coating device for battery electrode sheets according to claim 5, characterized in that The transmission component further includes a rotating member, and the driving component drives the rotating member to be rotatably arranged with a rotation axis parallel to the third direction, and the rotating member is fixedly connected to the gluing mechanism.

8. The glue coating device for battery electrode sheets according to claim 7, wherein, The rotatable angle of the rotating member relative to the reference line is 0° to 30°, and the reference line is parallel to the first direction.

9. The glue coating device for battery electrode sheets according to claim 1, wherein, The gluing mechanism includes a glue supply member, a smearing member, a channel connecting the glue supply member and the smearing member, and a heating member, and the heating member heats the channel.

10. The battery electrode sheet gluing device according to claim 9, characterized in that, The battery pole piece gluing device further includes a support roller, and the support roller and the gluing mechanism are arranged opposite to each other along the first direction.

11. The battery electrode sheet gluing device according to claim 10, characterized in that, The support roller is disposed on the adjusting mechanism.

12. The battery electrode sheet gluing device according to claim 10, characterized in that, The support roller includes a positioning surface for setting the pole piece, and the smearing member is disposed opposite to the positioning surface.

13. The battery electrode sheet gluing device according to claim 10, wherein, The support roller includes a first support roller and a second support roller arranged at intervals, and the smearing member includes a smearing portion, and the positive projection of the smearing portion along the first direction is located between the positive projection of the first support roller along the first direction and the positive projection of the second support roller along the first direction.

14. The battery electrode sheet gluing device according to claim 1, characterized in that, It further includes a collection box, the collection box is disposed on the mounting plate, and the mounting plate includes a positioning portion for setting the pole piece, and the positioning portion and the collection port of the collection box are arranged side by side.

15. The battery electrode sheet gluing device according to claim 1, characterized in that, It further includes: Feeding device, used for conveying the pole piece; Control module, communicating with the adjusting mechanism; Deviation correction detection device, located between the feeding device and the adjusting mechanism, the deviation correction detection device communicates with the feedback device, and the deviation correction detection device detects the position information of the pole piece; A feedback device for feeding back the detection information of the deviation correction detection device to the control module, and the control module controls the adjusting mechanism to drive the glue application mechanism to move.

16. The battery electrode sheet gluing device according to claim 15, characterized in that, It further includes a temperature monitoring device for detecting the medium temperature in the glue application mechanism, and the temperature monitoring device communicates with the control module.

17. The battery electrode sheet gluing device according to claim 15, characterized in that, It further includes a self-cleaning device disposed on the mounting plate. The self-cleaning device and the glue application mechanism are spaced apart along the second direction, and the self-cleaning device communicates with the control module to clean the glue application mechanism.

18. A method for preparing a battery electrode sheet, characterized in that, It includes: Traverse the pole piece through the glue application mechanism; Adjust the relative position between the glue application mechanism and the pole piece; The glue application mechanism applies glue to the pole piece.

19. The preparation method according to claim 18, wherein, The step of adjusting the relative position between the glue application mechanism and the pole piece includes: Obtain the position information of the pole piece; Transmit the position information to the adjusting mechanism; Based on the position information, drive the glue application mechanism to move to the target position through the adjusting mechanism.

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