Battery pole piece embossing device

Abstract

The utility model provides a kind of battery pole piece embossing device, battery pole piece embossing device includes: roller pressing subassembly, roller pressing subassembly includes first press roll and second press roll, along first direction, there is axial distance between first press roll and second press roll;Pressure assembly, pressure assembly is connected with first press roll and / or second press roll, pressure assembly adjusts the axial distance between first press roll and second press roll, to make first press roll and second press roll roll to pole piece;Adjusting component, adjusting component includes screw body and connecting body, screw body is extended along second direction and is arranged, and screw body is rotatably arranged around its axis, and screw body and connecting body are matched by screw thread;When screw body rotates around its axis, adjusting component drives roller pressing subassembly to move along second direction under the action of screw thread.The battery pole piece embossing device of the utility model embodiment solves the technical problem of poor embossing flexibility of the battery pole piece embossing device in the related art.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion battery electrode production technology, and more specifically, to a battery electrode embossing device. Background Technology

[0002] In the manufacturing process of cylindrical batteries, the surface treatment process of the electrode sheet has an important impact on the battery performance. In order to improve the wettability of the electrode sheet and the electrolyte, enhance the structural stability of the electrode sheet, and improve the energy density of the battery, the electrode sheet surface is usually embossed to form a concave-convex structure with a certain depth and distribution pattern.

[0003] However, the electrode embossing devices in related technologies still have shortcomings in practical applications:

[0004] For example, the embossing rollers in electrode embossing devices in related technologies are positioned relatively fixedly, making it difficult to flexibly adjust the embossing position according to the electrode structure. For instance, electrodes typically have tabs during the embossing process, but existing embossing devices cannot effectively avoid these tabs, causing them to be squeezed or damaged during embossing. This affects the conductivity of the tabs and subsequent welding processes, reducing the overall yield of the battery. Some devices attempt to avoid the tabs through manual intervention or complex mechanical structures, but this approach is not only inefficient but also unreliable.

[0005] It is evident that the electrode embossing devices in related technologies suffer from poor embossing flexibility. Currently, no effective solution has been proposed to address this issue.

[0006] The information disclosed in the background section is only intended to enhance the understanding of the background art described herein. Therefore, the background art may contain information that would not be considered part of the known related art by those skilled in the art. Utility Model Content

[0007] The main objective of this invention is to provide a battery electrode embossing device to solve the technical problem of poor embossing flexibility in related technologies.

[0008] To achieve the above objectives, this utility model provides a battery electrode embossing device, comprising: a rolling assembly, which includes a first pressure roller and a second pressure roller, with an axial distance between the first pressure roller and the second pressure roller along a first direction; a pressure applying assembly, which is connected to the first pressure roller and / or the second pressure roller, and adjusts the axial distance between the first pressure roller and the second pressure roller to roll the electrode sheet; and an adjusting assembly, which includes a threaded body and a connecting body, the threaded body extending along a second direction and rotatably disposed about its axis, the threaded body and the connecting body being engaged by a thread; when the threaded body rotates about its axis, the adjusting assembly drives the rolling assembly to move along the second direction under the action of the thread.

[0009] Furthermore, the battery electrode embossing device includes: a support assembly, which includes a first bracket and a second bracket, the second bracket being adjustablely positioned on the first bracket along a second direction, and a rolling assembly being positioned on the second bracket; one of the threaded body and the connecting body is positioned on the first bracket, and the other is positioned on the second bracket.

[0010] Furthermore, the pressure application assembly is configured to drive the first pressure roller to move in a first direction to adjust the axial distance between the first pressure roller and the second pressure roller, the first pressure roller and the second pressure roller each having a degree of freedom to rotate about their own axis.

[0011] Furthermore, the first pressure roller is provided with several protrusions, the surface of the second pressure roller is set as a curved surface, and a gap is provided between the protrusions and the surface of the second pressure roller for the electrode sheet to pass through.

[0012] Furthermore, the protrusions are convex spherical structures, with multiple protrusions evenly distributed on the outer surface of the first pressure roller. At least a portion of the protrusions is in contact with the outer surface of the first pressure roller, and the radius of the protrusions is between 0.2 mm and 2 mm.

[0013] Furthermore, a recess is provided on the outer surface of the first pressure roller, and the recess depth of the recess relative to the outer surface of the first pressure roller is between 0.14 mm and 1.4 mm.

[0014] Furthermore, the embossing device also includes a drive assembly to drive the second pressure roller to rotate around its own axis; the drive assembly includes a motor, a first drive wheel, a synchronous belt and a second drive wheel connected in sequence, and the second drive wheel is connected to the second pressure roller in a drive connection.

[0015] Furthermore, the second bracket has a protruding portion that protrudes from its main body, a first drive wheel is disposed on the protruding portion, and the output end of the motor passes through the protruding portion and is connected to the first drive wheel for transmission.

[0016] Furthermore, the support assembly includes a slide rail and a slider, the slide rail extending along a second direction and the slider slidably disposed on the slide rail along the second direction; wherein, one of the slide rail and the slider is disposed on the first bracket and the other is disposed on the second bracket.

[0017] Furthermore, the adjusting assembly includes a connecting seat mounted on a second bracket, a threaded body rotatably mounted on the connecting seat about its axis, and the connecting body mounted on a first bracket; and / or, the pressure applying assembly includes a cylinder and a roller frame, the body of the cylinder being disposed on the second bracket, the cylinder rod of the cylinder being connected to the roller frame, and a first pressure roller being mounted on the roller frame.

[0018] The battery electrode embossing device using the technical solution of this utility model includes: a rolling assembly, which includes a first pressure roller and a second pressure roller, with an axial distance between the first pressure roller and the second pressure roller along a first direction; a pressure applying assembly, which is connected to the first pressure roller and / or the second pressure roller, and adjusts the axial distance between the first pressure roller and the second pressure roller to roll the electrode sheet; and an adjusting assembly, which includes a threaded body and a connecting body, the threaded body extending along a second direction and rotatably arranged around its axis, with the threaded body and the connecting body connected by a threaded engagement; when the threaded body rotates around its axis, the adjusting assembly drives the rolling assembly to move along the second direction under the action of the thread. With this structural design, the battery electrode embossing device, through the design of the threaded body and the connecting body, drives the rolling assembly to move along the second direction when the threaded body rotates, thereby adjusting the position of the first pressure roller and the second pressure roller. This allows for flexible adjustment of the embossing position according to the electrode structure or embossing requirements, such as avoiding the electrode lugs and preventing them from being squeezed or damaged during the embossing process. This effectively improves the flexibility of the embossing operation and solves the technical problem of poor embossing flexibility in related technologies. Simultaneously, the threaded connection structure between the threaded body and the connecting body allows for locking of the roller pressing assembly, preventing displacement and ensuring the stability and reliability of the embossing process. This effectively protects the integrity of the electrode lugs, and the structure is simple and easy to operate. The electrode embossing device of this embodiment has a reasonable overall structural design, with tight fit between components, small footprint, and is easy to integrate and modify in existing production lines. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the battery electrode embossing device of this utility model from a first perspective;

[0021] Figure 2 This is a schematic diagram of the structure of an embodiment of the battery electrode embossing device of this utility model from a second perspective;

[0022] Figure 3 This is a schematic diagram of the structure of an embodiment of the battery electrode embossing device of this utility model from a third-person perspective.

[0023] The above figures include the following reference numerals:

[0024] 1. Roller assembly; 101. First pressure roller; 102. Second pressure roller; 103. Protrusion;

[0025] 2. Pressure application components; 201. Cylinder; 202. Roller frame;

[0026] 3. Support components; 301. First bracket; 302. Second bracket; 303. Slide rail; 304. Slider; 305. Protruding part;

[0027] 4. Adjustment component; 401. Threaded body; 402. Connecting body; 403. Connecting seat;

[0028] 5. Drive assembly; 501. Motor; 502. First drive wheel; 503. Synchronous belt; 504. Second drive wheel;

[0029] 10. Electrode. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Please refer to Figures 1 to 3 To address the technical problems described in the background section, this utility model provides a battery electrode embossing device, comprising: a rolling assembly 1, which includes a first pressure roller 101 and a second pressure roller 102, with an axial distance between the first pressure roller 101 and the second pressure roller 102 along a first direction; a pressure application assembly 2, which is connected to the first pressure roller 101 and / or the second pressure roller 102, and adjusts the axial distance between the first pressure roller 101 and the second pressure roller 102 to roll the electrode 10; and an adjustment assembly 4, which includes a threaded body 401 and a connecting body 402, wherein the threaded body 401 extends along a second direction and is rotatably arranged around its axis, and the threaded body 401 and the connecting body 402 are connected by a thread; when the threaded body 401 rotates around its axis, the adjustment assembly 4 drives the rolling assembly 1 to move along the second direction under the action of the thread.

[0032] The battery electrode embossing device with this structural design utilizes a threaded body 401 and a connecting body 402. When the threaded body 401 is rotated, the threaded engagement of the threaded body 401 and the connecting body 402 drives the roller pressing assembly 1 to move in the second direction, thereby adjusting the positions of the first pressure roller 101 and the second pressure roller 102. This allows for flexible adjustment of the embossing position according to the electrode structure or embossing requirements, such as avoiding the tabs from being squeezed or damaged during the embossing process. This effectively improves the flexibility of the embossing operation and solves the technical problem of poor embossing flexibility in related electrode embossing devices. Simultaneously, the threaded connection structure between the threaded body 401 and the connecting body 402 allows for locking of the roller pressing assembly 1, preventing displacement and ensuring the stability and reliability of the embossing process. This effectively protects the integrity of the tabs, and the device is simple in structure and easy to operate. The overall structure of the electrode embossing device in this embodiment is rationally designed, with tight fit between components, small footprint, and easy integration and modification into existing production lines.

[0033] The first pressure roller 101 and the second pressure roller 102 have an axial distance between them, which allows the electrode sheet 10 to pass between them, thereby rolling the electrode sheet 10 on both sides. In this embodiment, the axial distance between the first pressure roller 101 and the second pressure roller 102 is limited to a first direction, and other directions are not limited. Specifically, in other directions, the two can be aligned or misaligned, as long as the rolling of the electrode sheet 10 can be achieved.

[0034] In some preferred embodiments, in order to support the relevant structure and meet the position adjustment requirements of the rolling assembly 1, the battery electrode embossing device includes: a support assembly 3, which includes a first bracket 301 and a second bracket 302. The second bracket 302 is adjustablely disposed on the first bracket 301 along a second direction, and the rolling assembly 1 is disposed on the second bracket 302; one of the threaded body 401 and the connecting body 402 is disposed on the first bracket 301, and the other is disposed on the second bracket 302.

[0035] The battery electrode embossing device of this utility model is divided into four modules: a roller pressing component 1, a pressing component 2, a supporting component 3, and an adjusting component 4. The structure is clear and assembly is convenient. It should be noted that, in a preferred embodiment, the supporting component 3 adopts a hollow frame structure, which not only reduces the weight of the device but also provides ample space for the installation and maintenance of internal components, improving maintainability and scalability.

[0036] It should be noted that the first direction and the second direction are different directions. In some preferred embodiments, the first direction is perpendicular to the second direction, and the central axes of the first pressure roller 101 and the second pressure roller 102 are both extended along the second direction.

[0037] In this embodiment, the pressure application component 2 is configured to drive the first pressure roller 101 to move in a first direction to adjust the axial distance between the first pressure roller 101 and the second pressure roller 102. The first pressure roller 101 and the second pressure roller 102 each have a degree of freedom to rotate around their own axis.

[0038] It should be noted that, in order to drive the first pressure roller 101 to move in the first direction and adjust the axial distance between it and the second pressure roller 102, the pressure application component 2 can adopt a variety of specific implementation forms.

[0039] For example, the pressure application component 2 can be configured as a screw-nut mechanism, that is, the pressure application component 2 includes a screw and a nut that cooperates with it. The nut is fixedly connected to the bearing seat of the first pressure roller 101. By rotating the screw, the nut moves along the screw axis, thereby driving the first pressure roller 101 to move in the first direction. The pressure application component 2 can be configured as a sliding mechanism, that is, the position adjustment of the first pressure roller 101 is achieved by manually or electrically driving the sliding body to move along the track. The pressure application component 2 can be configured as a hydraulic drive mechanism, that is, the pressure application component 2 includes a hydraulic cylinder, the piston rod of which is connected to the bearing seat of the first pressure roller 101. By controlling the hydraulic pressure, the piston rod is extended and retracted, driving the first pressure roller 101 to move in the first direction. The pressure application component 2 can be configured as a cam mechanism, that is, the pressure application component 2 includes a cam and a follower. The cam is connected to the drive shaft, and the follower is connected to the bearing seat of the first pressure roller 101. By rotating the cam, the follower drives the first pressure roller 101 to move in the first direction.

[0040] In practical implementation, raised or recessed textures can be designed on the first pressure roller 101 and / or the second pressure roller 102 to roll-press and form knurling on the electrode sheet 10. In this embodiment, the first pressure roller 101 is provided with a plurality of protrusions 103, the surface of the second pressure roller 102 is set as a curved surface, and a gap is provided between the protrusions 103 and the surface of the second pressure roller 102 for the electrode sheet 10 to pass through. By providing protrusions 103 on the first pressure roller 101 and designing the surface of the second pressure roller 102 as a curved surface, single-sided embossing of the electrode sheet 10 is achieved. Preferably, in order to improve the embossing effect, the second pressure roller 102 is a rubber roller to give it better deformation performance and facilitate the formation of embossing.

[0041] In a preferred embodiment, the protrusion 103 is a convex spherical structure, with multiple protrusions 103 evenly distributed on the outer surface of the first pressure roller 101. At least a portion of the protrusion 103 is in contact with the outer surface of the first pressure roller 101, and the radius of the protrusion 103 is between 0.2 mm and 2 mm. Specifically, the radius of the protrusion 103 can be flexibly adjusted according to the material characteristics of the electrode sheet 10 and the requirements of the embossing process, thereby adjusting the embossing depth and ensuring that the embossing device can adapt to electrodes of different thicknesses and materials, exhibiting wide process adaptability. It should be emphasized that the radius of the protrusion 103 is preferably between 0.6 mm and 1.2 mm.

[0042] Preferably, a recess (not shown in the figure) is further provided on the outer surface of the first pressure roller 101, and the recess depth relative to the outer surface of the first pressure roller 101 is 0.14mm to 1.4mm. By controlling the depth of the recess, high consistency of embossing depth and stability of the equipment structure are achieved. It should be emphasized that the vertical distance between the bottom point of the recess and the outer surface of the first pressure roller 101 is preferably 0.4mm to 1.2mm. It should be noted that the recess depth of the recess relative to the outer surface of the first pressure roller 101 is 0.14mm to 1.4mm, which means that the depth of the recess relative to the cylindrical roller surface of the first pressure roller 101 is 0.14mm to 1.4mm.

[0043] By setting a protrusion 103 with a radius of 0.2mm to 2mm and a recess with a depth of 0.14mm to 1.4mm on the first pressure roller 101, precise control of the embossing depth on the electrode surface can be achieved, ensuring uniform embossing depth. This effectively avoids the problem of inconsistent electrode surface quality caused by unstable embossing depth in traditional embossing devices, thereby significantly improving the embossing quality of the electrode and the overall performance of the battery.

[0044] In some embodiments, the embossing device further includes a drive assembly 5 to drive the second pressure roller 102 to rotate around its own axis. The drive assembly 5 includes a motor 501, a first drive wheel 502, a synchronous belt 503, and a second drive wheel 504 connected in sequence. The second drive wheel 504 is connected to the second pressure roller 102 in a driving connection. Compared with traditional gear or chain drives, the synchronous belt drive has better buffering performance, ensuring that the rotational speed of the second pressure roller 102 is synchronized with the output speed of the motor 501, avoiding the problem of uneven embossing caused by transmission errors in traditional transmission methods, and making the operation smoother.

[0045] Specifically, the second bracket 302 has a protruding portion 305 extending beyond its main body (the second bracket 302 has a main body and a protruding portion 305, the protruding portion 305 protruding beyond the main body), the first drive wheel 502 is disposed on the protruding portion 305, and the output end of the motor 501 passes through the protruding portion 305 and is connected to the first drive wheel 502 in a transmission connection. In this embodiment, the output end of the motor 501 directly passes through the protruding portion 305 of the second bracket 302 and is connected to the first drive wheel 502 in a transmission connection. The transmission path is short, reducing energy loss in intermediate transmission links. At the same time, the overall structure of the drive assembly 5 is more compact, reducing the number of intermediate connecting parts and lowering the risk of failure due to loose or worn connecting parts.

[0046] like Figure 2 and Figure 3As shown, in this embodiment, the support component 3 includes a slide rail 303 and a slider 304. The slide rail 303 extends along a second direction, and the slider 304 is slidably disposed on the slide rail 303 along the second direction. One of the slide rail 303 and the slider 304 is disposed on the first bracket 301, and the other is disposed on the second bracket 302. By setting the slide rail 303 and the slider 304, the slider 304 is slidably connected to the slide rail 303. The second bracket 302 can slide along the slide rail 303 via the slider 304, facilitating the adjustment of the position of the rolling assembly 1. Simultaneously, the sliding connection structure between the slider 304 and the slide rail 303, as well as the locking structure of the threaded body 401, adopt a modular design, facilitating installation, disassembly, and maintenance, reducing equipment maintenance costs and downtime. The sliding connection structure allows the second bracket 302 to drive the entire rolling assembly 1 to move, facilitating the adjustment of the position of the rolling assembly 1, thereby achieving avoidance of the electrode tabs, preventing the tabs from being squeezed or damaged, and improving the yield of the battery electrode sheets.

[0047] In a preferred embodiment, the adjusting component 4 includes a connecting seat 403, which is mounted on the second bracket 302. A threaded body 401 is rotatably mounted on the connecting seat 403 about its axis, and the connecting body 402 is mounted on the first bracket 301. The threaded connection has excellent self-locking properties, effectively preventing loosening of the connection due to vibration or load changes during operation of the embossing device, thus improving the stability and safety of the equipment. Simultaneously, the threaded connection facilitates adjustment of the relative position between the connecting body 402 and the threaded body 401, allowing adjustment of the position of the roller pressing component 1 according to actual needs, thereby improving the adaptability and flexibility of the embossing process.

[0048] In this embodiment, the pressure application component 2 includes a cylinder 201 and a roller frame 202. The body of the cylinder 201 is mounted on the second support 302, and the cylinder rod of the cylinder 201 is connected to the roller frame 202. The first pressure roller 101 is mounted on the roller frame 202. In this embodiment, the cylinder 201 is divided into a cylinder body and a cylinder rod. The cylinder rod can extend or retract relative to the cylinder body. The cylinder body is mounted on the second support 302, and the cylinder rod is connected to the roller frame 202. Of course, in other embodiments, the pressure application component 2 can also adopt other structures, such as electric cylinder drive, hydraulic drive, gear and rack structure drive, etc.

[0049] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0050] The battery electrode embossing device of this utility model includes: a rolling assembly 1, which includes a first pressure roller 101 and a second pressure roller 102, and there is an axial distance between the first pressure roller 101 and the second pressure roller 102 along a first direction; a pressure application assembly 2, which is connected to the first pressure roller 101 and / or the second pressure roller 102, and the pressure application assembly 2 adjusts the axial distance between the first pressure roller 101 and the second pressure roller 102 so that the first pressure roller 101 and the second pressure roller 102 roll the electrode 10; and an adjustment assembly 4, which includes a threaded body 401 and a connecting body 402, the threaded body 401 extending along a second direction and rotatably arranged around its axis, and the threaded body 401 and the connecting body 402 are connected by a thread; when the threaded body 401 rotates around its axis, the adjustment assembly 4 drives the rolling assembly 1 to move along the second direction under the action of the thread. The battery electrode embossing device with this structural design utilizes a threaded body 401 and a connecting body 402. When the threaded body 401 is rotated, the threaded engagement of the threaded body 401 and the connecting body 402 drives the roller pressing assembly 1 to move in the second direction, thereby adjusting the positions of the first pressure roller 101 and the second pressure roller 102. This allows for flexible adjustment of the embossing position according to the electrode structure or embossing requirements, such as avoiding the tabs from being squeezed or damaged during the embossing process. This effectively improves the flexibility of the embossing operation and solves the technical problem of poor embossing flexibility in related electrode embossing devices. Simultaneously, the threaded connection structure between the threaded body 401 and the connecting body 402 allows for locking of the roller pressing assembly 1, preventing displacement and ensuring the stability and reliability of the embossing process. This effectively protects the integrity of the tabs, and the device is simple in structure and easy to operate. The overall structure of the electrode embossing device in this embodiment is rationally designed, with tight fit between components, small footprint, and easy integration and modification into existing production lines.

[0051] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0054] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery electrode embossing device, characterized in that, include: Roller assembly (1), the roller assembly (1) includes a first pressure roller (101) and a second pressure roller (102), and there is an axial distance between the first pressure roller (101) and the second pressure roller (102) along a first direction; A pressure application assembly (2) is connected to the first pressure roller (101) and / or the second pressure roller (102). The pressure application assembly (2) can adjust the axial distance between the first pressure roller (101) and the second pressure roller (102) so that the first pressure roller (101) and the second pressure roller (102) roll the electrode sheet (10). An adjusting assembly (4) includes a threaded body (401) and a connecting body (402). The threaded body (401) extends along a second direction and is rotatably arranged about its axis. The threaded body (401) and the connecting body (402) are connected by a thread. When the threaded body (401) rotates about its axis, the adjusting assembly (4) drives the roller pressing assembly (1) to move along the second direction under the action of the thread.

2. The battery electrode embossing device according to claim 1, characterized in that, The battery electrode embossing device includes: The support assembly (3) includes a first bracket (301) and a second bracket (302), the second bracket (302) being adjustablely disposed on the first bracket (301) along the second direction, and the roller pressing assembly (1) being disposed on the second bracket (302); one of the threaded body (401) and the connecting body (402) is disposed on the first bracket (301), and the other is disposed on the second bracket (302).

3. The battery electrode embossing device according to claim 1, characterized in that, The pressure application component (2) is configured to drive the first pressure roller (101) to move in the first direction to adjust the axial distance between the first pressure roller (101) and the second pressure roller (102), wherein the first pressure roller (101) and the second pressure roller (102) have degrees of freedom to rotate about their own axes.

4. The battery electrode embossing device according to claim 1, characterized in that, The first pressure roller (101) is provided with a plurality of protrusions (103), the surface of the second pressure roller (102) is configured as a curved surface, and a gap is provided between the protrusions (103) and the surface of the second pressure roller (102) for passing through the electrode sheet (10).

5. The battery electrode embossing device according to claim 4, characterized in that, The protrusion (103) is a convex ball structure. A plurality of the protrusions (103) are evenly distributed on the outer surface of the first pressure roller (101). At least a portion of the protrusion (103) is in contact with the outer surface of the first pressure roller (101). The radius of the protrusion (103) is between 0.2 mm and 2 mm.

6. The battery electrode embossing apparatus according to any one of claims 1 to 5, characterized in that, The outer surface of the first pressure roller (101) is also provided with a recess, and the recess depth of the recess relative to the outer surface of the first pressure roller (101) is between 0.14 mm and 1.4 mm.

7. The battery electrode embossing device according to claim 2, characterized in that, The embossing device further includes a drive assembly (5) to drive the second pressure roller (102) to rotate around its own axis; the drive assembly (5) includes a motor (501), a first drive wheel (502), a synchronous belt (503) and a second drive wheel (504) connected in sequence, and the second drive wheel (504) is connected to the second pressure roller (102).

8. The battery electrode embossing device according to claim 7, characterized in that, The second bracket (302) has a protruding portion (305) that protrudes from its body, the first drive wheel (502) is disposed on the protruding portion (305), and the output end of the motor (501) passes through the protruding portion (305) and is connected to the first drive wheel (502) in a transmission connection.

9. The battery electrode embossing device according to claim 2, characterized in that, The support assembly (3) includes a slide rail (303) and a slider (304). The slide rail (303) extends along the second direction, and the slider (304) is slidably disposed on the slide rail (303) along the second direction. One of the slide rail (303) and the slider (304) is disposed on the first bracket (301), and the other is disposed on the second bracket (302).

10. The battery electrode embossing device according to claim 2, characterized in that, The adjusting assembly (4) includes a connecting seat (403) mounted on the second bracket (302), a threaded body (401) rotatably mounted on the connecting seat (403) about its axis, and the connecting body (402) mounted on the first bracket (301); and / or, The pressure application assembly (2) includes a cylinder (201) and a roller frame (202). The body of the cylinder (201) is disposed on the second bracket (302). The cylinder rod of the cylinder (201) is connected to the roller frame (202). The first pressure roller (101) is mounted on the roller frame (202).

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