CN118125208A

CN118125208A - Rubberizing device, winding equipment and battery cell

Info

Publication number: CN118125208A
Application number: CN202410171128.8A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2024-02-06
Filing date: 2024-02-06
Publication date: 2024-06-04

Abstract

The invention relates to a rubberizing device, winding equipment and an electric core. The rubberizing device comprises a first rubberizing unit, wherein the first rubberizing unit comprises a first rubberizing component, a second rubberizing component and a first rubberizing component; the first rubberizing component and the second rubberizing component are distributed at intervals along the second direction; the first rubberizing component and the second rubberizing component can relatively move to a rubberizing state and a rubberizing state in a second direction respectively with the first rubberizing component; when the first adhesive tape is in the adhesive preparation state, the adsorption end of the first adhesive tape sticking component or the second adhesive tape sticking component is opposite to the first adhesive tape provided by the first adhesive preparation component in the first direction; when the pole piece material belt is in a rubberizing state, the adsorption ends of the first rubberizing component and the second rubberizing component are respectively opposite to the pole piece material belt passing through the two rubberizing positions in the first direction.

Description

Rubberizing device, winding equipment and battery cell

Technical Field

The invention relates to the technical field of battery manufacturing, in particular to a rubberizing device, winding equipment and a battery cell.

Background

The battery cell is one of core components of the battery, and a winding machine is often used for winding and forming the pole piece and the diaphragm. In order to improve the safety of the battery cell, the pole piece needs to be rubberized before being wound, namely, the adhesive tape is rubberized to the surface of the pole piece. However, the conventional rubberizing device has a complex structure and large occupied space, so that the layout difficulty is high when the space is limited.

Disclosure of Invention

Based on this, it is necessary to provide a rubberizing device, a winding device and a battery cell for improving the defects, aiming at the problems of complex structure, large occupied space and large layout difficulty when the space is limited in the prior art.

The first rubberizing unit comprises a first rubberizing component, a second rubberizing component and a first standby rubberizing component; the first rubberizing component and the second rubberizing component are arranged at intervals along a second direction, and the first rubberizing component can be used for providing a first adhesive tape for the first rubberizing component and the second rubberizing component; the adsorption ends of the first rubberizing component and the second rubberizing component can move controllably along a first direction intersecting the second direction, and can be used for adsorbing or loosening a first adhesive tape; the first rubberizing component and the second rubberizing component can relatively move to a rubberizing state and a rubberizing state in the second direction respectively with the first rubberizing component.

In one embodiment, when in the standby state, the adsorption end of the first rubberizing component or the second rubberizing component is opposite to the first adhesive tape provided by the first standby component in the first direction, so that the adsorption end of the first rubberizing component or the second rubberizing component can absorb the first adhesive tape provided by the first standby component when moving along the first direction; when the first rubberizing component and the second rubberizing component are in the rubberizing state, the adsorption ends of the first rubberizing component and the second rubberizing component are opposite to the pole piece material belt in the first direction, so that the adsorption ends of the first rubberizing component and the second rubberizing component can respectively paste a first adhesive tape to the pole piece material belt passing by when moving along the first direction.

In one embodiment, the rubberizing device comprises a mounting plate, the first rubberizing component and the second rubberizing component are fixedly mounted on the mounting plate, and the first standby component is movably connected on the mounting plate along the second direction.

In one embodiment, the rubberizing device comprises a mounting plate, the first rubberizing component is movably connected to the mounting plate along the second direction, the second rubberizing component is movably connected to the mounting plate along the second direction, and the first rubberizing component is fixedly mounted on the mounting plate.

In one embodiment, the rubberizing device comprises a mounting plate, one of the first rubberizing component and the second rubberizing component is movably connected to the mounting plate along the second direction, the other of the first rubberizing component and the second rubberizing component is fixedly connected to the mounting plate, and the first standby rubberizing component is movably connected to the mounting plate along the second direction.

In one embodiment, the first rubberizing unit further comprises a first motion seat, the rubberizing device further comprises a driving unit, the first motion seat is arranged on the mounting plate, the driving unit is connected with the first motion seat and can drive the first motion seat to move along the second direction relative to the mounting plate, and the first rubberizing component and the second rubberizing component are both arranged on the first motion seat.

In one embodiment, two first rubberizing units are arranged, and the two first rubberizing units are respectively arranged on two sides of the pole piece material belt in the first direction;

The first motion seats of the two first rubberizing units are fixedly connected through a connecting frame.

In one embodiment, the rubberizing device further comprises a cutting unit and a second rubberizing unit, wherein the cutting unit comprises a first clamping assembly, a cutting assembly and a second clamping assembly which are sequentially arranged at intervals along the second direction, and the first clamping assembly, the cutting assembly and the second clamping assembly are all positioned on one side, away from the first rubberizing assembly, of the second rubberizing assembly;

The second rubberizing unit comprises a third rubberizing component, the first clamping component and the second clamping component are both used for clamping a pole piece material belt passing through, the cutting component is used for cutting off the pole piece material belt passing through, at least one of the first clamping component and the second clamping component can move along the second direction relative to the other, and the third rubberizing component is used for pasting a second adhesive tape onto two cut ends formed by cutting off the pole piece material belt.

In one embodiment, the first clamping assembly is controllably moved in the second direction toward or away from the second clamping assembly.

In one embodiment, the first clamping assembly comprises a first moving plate, a first clamping plate and a second clamping plate, the first moving plate can controllably move along the second direction, the first clamping plate and the second clamping plate are arranged on the first moving plate opposite to each other, a clamping channel for passing a pole piece material belt is formed between the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate can controllably clamp or unclamp the pole piece material belt passing through the clamping channel.

In one embodiment, a first blade is mounted to the first clamping plate, the first blade extending from the first clamping plate toward the cutting assembly; a second supporting plate is arranged on the second clamping plate, and extends from the second clamping plate to the cutting assembly;

a pole piece strip between the first clamping plate and the cutting assembly is supported between the first and second support plates.

In one embodiment, the second rubberizing unit further comprises a second rubberizing component for providing a second adhesive tape, wherein the adsorption end of the third rubberizing component can controllably move along the first direction and is used for adsorbing or loosening the second adhesive tape;

The third rubberizing component can be controllably moved to a rubberizing position along the second direction, so that the adsorption end of the third rubberizing component is opposite to a second adhesive tape provided by the second rubberizing component in the first direction.

In one embodiment, the cutting assembly is movably disposed along the second direction and is connected to the third rubberizing assembly such that the cutting assembly moves along the second direction along with the third rubberizing assembly.

A winding apparatus comprising a winding device and a rubberizing device as in any one of the embodiments above, the winding device being arranged downstream of the rubberizing device to wind a pole piece web past the rubberizing device to form a cell.

A battery cell, which is formed by winding the winding device in any embodiment, wherein first adhesive tapes are adhered to two corners of the pole piece material belt at the innermost ring of the battery cell.

Compared with the scheme that each rubberizing component needs to be provided with one rubberizing component in the prior art, the rubberizing device provided by the application has the advantages that the states are switched by moving the first rubberizing component and the second rubberizing component in the second direction relative to the first rubberizing component respectively, so that the first rubberizing component can provide the first adhesive tape for the first rubberizing component and the second rubberizing component respectively, interference of the first rubberizing component to rubberizing actions of the first rubberizing component and the second rubberizing component can be avoided, the number of the rubberizing components is reduced, the structure of the rubberizing device is simplified, the space utilization rate is improved, and the difficulty of space layout of each component is reduced.

Drawings

FIG. 1 is a schematic view of a structure of a pole piece material tape attached with a first tape and a second tape according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a cell formed using the pole piece web shown in FIG. 1;

FIG. 3 is a schematic diagram of a rubberizing device according to an embodiment of the invention;

FIG. 4 is a schematic structural view of a rubberizing unit of the rubberizing device shown in FIG. 3;

FIG. 5 is a schematic diagram of a driving unit of the rubberizing device shown in FIG. 3;

FIG. 6 is a schematic structural view of a first rubberizing component of the rubberizing device shown in FIG. 3;

FIG. 7 is a schematic diagram of a rubberizing device according to another embodiment of the invention;

FIG. 8 is a schematic view of a first clamping assembly of the rubberizing device shown in FIG. 3;

FIG. 9 is a schematic structural view of a cutting assembly of the rubberizing device shown in FIG. 3;

Fig. 10 is a schematic structural diagram of a first rubberizing component, a second rubberizing component and a third rubberizing component of the rubberizing device shown in fig. 3.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

An embodiment of the invention provides winding equipment, which comprises a rubberizing device and a winding device. Referring to fig. 1 and 2, the rubberizing device is used for attaching a first adhesive tape B to a pole piece material tape a passing by. The pole piece material tape A attached with the first adhesive tape B enters a winding device, and the winding device winds the pole piece material tape A to form the battery cell 100. The battery cell 100 is flattened in a subsequent process. The first adhesive tape B is positioned at the corner F of the pole piece material belt a at the innermost ring of the battery cell 100, so that the corner F of the pole piece material belt a at the innermost ring of the battery cell 100 is protected by the first adhesive tape B, the pole piece material belt a is prevented from generating wrinkles or cracks at the corner F, and the safety of the battery cell 100 is greatly improved.

It should be noted that, since the battery cell 100 is flat, the pole piece material strip a at the innermost ring of the battery cell 100 exists at two corners F. Therefore, the rubberizing device needs to rubberize at two corresponding positions of the pole piece material belt A when rubberizing each time, thereby ensuring that after the pole piece material belt A is wound into the battery cell 100, the two corners F of the pole piece material belt A at the innermost ring of the battery cell 100 are all pasted with the first adhesive tape B, namely, the protection of the two corners F of the pole piece material belt A at the innermost ring of the battery cell 100 is realized, and the safety of the battery cell 100 is greatly improved. Of course, the battery cell 100 may have other shapes, as long as the corner F exists in the pole piece material strip a at the innermost ring of the battery cell 100, and the shape is not limited herein.

It will be appreciated that with continued reference to fig. 2, the winding device winds one layer of separator D, the above-mentioned pole piece material strip a, another layer of separator D and the pole piece E together, and forms the battery cell 100. Of course, in other embodiments, the battery cell 100 may further include other material strips, which are not limited herein.

Referring to fig. 3, in an embodiment of the present application, the rubberizing device includes a first rubberizing unit 10 for applying a first adhesive tape B to a pole piece material tape a. The first rubberizing unit 10 comprises a first rubberizing assembly 11, a second rubberizing assembly 12 and a first stock assembly 13. The first rubberizing component 11, the second rubberizing component 12 and the first glue preparation component 13 are arranged on the same side of the pole piece material belt A in the first direction X1, and the first rubberizing component 11 and the second rubberizing component 12 are arranged at intervals along the conveying direction (namely the second direction X2) of the pole piece material belt A, and the second direction X2 is intersected with the first direction X1. Preferably, the second direction X2 is perpendicular to the first direction X1, the first direction X1 is a direction perpendicular to the pole piece material belt a, and the second direction X2 is a conveying direction of the pole piece material belt a.

Wherein the first adhesive preparation assembly 13 is operable to provide the first adhesive tape B to the first adhesive application assembly 11 and the second adhesive application assembly 12. The suction ends of the first and second rubberizing assemblies 11 and 12 are controllably movable along the first direction X1 and are used for sucking or releasing the first tape B. The first rubberizing component 11 and the second rubberizing component 12 and the first rubberizing component 13 can relatively move to a rubberizing state and a rubberizing state in the second direction X2 respectively. In the standby state, the adsorption end of the first adhesive tape attaching component 11 or the second adhesive tape attaching component 12 can absorb the first adhesive tape B provided by the first adhesive tape standby component 13. In the rubberized state, the first rubberizing component 11 and the second rubberizing component 12 are capable of affixing the first adhesive tape B to the pole piece material tape a.

Further, when in the standby state, the adsorption end of the first adhesive tape sticking component 11 or the second adhesive tape sticking component 12 is opposite to the first adhesive tape B provided by the first adhesive tape standby component 13 in the first direction X1, so that the adsorption end of the first adhesive tape sticking component 11 or the second adhesive tape sticking component 12 can absorb the first adhesive tape B provided by the first adhesive tape standby component 13 when moving along the first direction X1. When in rubberizing state, the adsorption ends of first rubberizing subassembly 11 and second rubberizing subassembly 12 all misplaces with first rubberizing subassembly 13 in first direction X1, and the adsorption ends of first rubberizing subassembly 11 and second rubberizing subassembly 12 all are relative with pole piece material area A in first direction X1 for the adsorption ends of first rubberizing subassembly 11 and second rubberizing subassembly 12 can be when removing along first direction X1, paste the first sticky tape B of absorbing to the pole piece material area A of route respectively on.

When the pole piece material belt A pasted with the first adhesive tape B is wound into the battery cell 100, the first adhesive tape B pasted by the first rubberizing component 11 is positioned at one corner F of the pole piece material belt A at the innermost ring of the battery cell 100, and the first adhesive tape B pasted by the second rubberizing component 12 is positioned at the other corner F of the pole piece material belt A at the innermost ring of the battery cell 100.

In the above-mentioned rubberizing device, when the first rubberizing component 11 does not have the first adhesive tape B in the actual use process, the first rubberizing component 11 and the first standby component 13 are controlled to generate relative movement in the second direction X2 until the adsorption end of the first rubberizing component 11 and the first adhesive tape B provided by the first standby component 13 are opposite to each other in the first direction X1. At this time, the adsorption end of the first adhesive tape assembly 11 moves along the first direction X1 first toward and then away from the first adhesive tape assembly 13, and absorbs the first adhesive tape B provided by the first adhesive tape assembly 13. Similarly, when the second adhesive tape assembly 12 does not have the first adhesive tape B thereon, the second adhesive tape assembly 12 and the first adhesive tape preparation assembly 13 are controlled to move relatively in the second direction X2 until the adsorption end of the second adhesive tape assembly 12 and the first adhesive tape B provided by the first adhesive tape preparation assembly 13 are opposite to each other in the first direction X1. At this time, the adsorption end of the second adhesive tape applying component 12 moves along the first direction X1 first and then moves away from the first adhesive tape preparing component 13, and absorbs the first adhesive tape B provided by the first adhesive tape preparing component 13.

When the first adhesive tape B needs to be attached to the pole piece material belt A, the first rubberizing component 11 and the second rubberizing component 12 are controlled to generate relative movement in the second direction X2 relative to the first rubberizing component 13 until the adsorption ends of the first rubberizing component 11 and the second rubberizing component 12 are staggered with the first rubberizing component 13 in the first direction X1, so that the adsorption ends of the first rubberizing component 11 and the second rubberizing component 12 are opposite to the pole piece material belt A in the first direction X1. At this time, the adsorption end of the first rubberizing component 11 is firstly close to and then far away from the passing pole piece material belt A along the first direction X1, and the first adhesive tape B is stuck to the passing pole piece material belt A; the adsorption end of the second rubberizing component 12 is firstly close to and then far away from the passing pole piece material belt A along the first direction X1, and the first absorbed adhesive tape B is adhered to the passing pole piece material belt A.

Thus, compared with the scheme that each rubberizing component in the prior art needs to be provided with one rubberizing component. According to the application, the first rubberizing component 11 and the second rubberizing component 12 respectively move in the second direction X2 relative to the first rubberizing component 13 to realize state switching, so that the first rubberizing component 13 respectively provides the first adhesive tape B for the first rubberizing component 11 and the second rubberizing component 12, interference of the first rubberizing component 13 on rubberizing actions of the first rubberizing component 11 and the second rubberizing component 12 can be avoided, the number of rubberizing components is reduced, the structure of a rubberizing device is simplified, the space utilization rate is improved, and the difficulty of spatial layout of each component is reduced.

It should be noted that, the positions of the first rubberizing component 11 and the second rubberizing component 12 for rubberizing the pole piece material belt a may be calculated and determined according to factors such as the thickness of the pole piece material belt and the winding diameter of the battery core, so long as the first adhesive tapes B adhered by the first rubberizing component 11 and the second rubberizing component 12 are ensured to be respectively located at two corners F of the innermost ring of the battery core 100, and no special limitation is provided herein.

In an embodiment of the application the rubberizing device comprises a mounting plate 20 to which the first rubberizing component 11 is movably connected in the second direction X2, and to which mounting plate 20 the second rubberizing component 12 is also movably connected in the second direction X2. The first glue assembly 13 is fixedly mounted on the mounting plate 20. That is, the first rubberizing component 11 is movable along the second direction X2 relative to the mounting plate 20, the second rubberizing component 12 is also movable along the second direction X2 relative to the mounting plate 20, and the first rubberizing component 13 is fixed relative to the mounting plate 20, so that the first rubberizing component 11 and the second rubberizing component 12 can move along the second direction X2 relative to the first rubberizing component 13, and further, the rubberizing state and the rubberizing state can be switched.

Of course, the first glue assembly 11 and the second glue assembly 12 are not limited to being moved along the second direction X2, and the first glue assembly 13 is fixed to switch between the glue state and the glue state. In other embodiments, referring to fig. 7, the first adhesive assembly 11 and the second adhesive assembly 12 are both fixedly mounted on the mounting plate 20, and the first adhesive preparation assembly 13 is movably connected to the mounting plate 20 along the second direction X2. In this way, the first glue preparation assembly 13 moves along the second direction X2 relative to the mounting plate 20, so that the first glue application assembly 11, the second glue application assembly 12 and the first glue preparation assembly 13 generate relative movement in the second direction X2, and the glue preparation state and the glue application state are switched.

In still other embodiments, one of the first and second rubberizing components 11, 12 is movably connected to the mounting plate 20 along the second direction X2, the other of the first and second rubberizing components 11, 12 is fixedly connected to the mounting plate 20, and the first stock component 13 is also movably connected to the mounting plate 20 along the second direction X2. In this way, the first glue preparation assembly 13 moves along the second direction X2 relative to the mounting plate 20, so that the first glue preparation assembly 11, the second glue preparation assembly 12 and the first glue preparation assembly 13 generate relative movement in the second direction X2, and the glue preparation state are switched.

For ease of understanding, embodiments are described herein in which first and second adhesive assemblies 11, 12 are movable relative to mounting plate 20 in second direction X2, and first adhesive preparation assembly 13 is fixed relative to mounting plate 20.

Referring to fig. 3 to 5, in a specific embodiment, the first rubberizing unit 10 further includes a first motion base 14, and the rubberizing device further includes a driving unit 30 (see fig. 5). The first motion seat 14 is disposed on the mounting plate 20. The driving unit 30 is also mounted on the mounting plate 20 and is connected to the first motion seat 14 such that the driving unit 30 can drive the first motion seat 14 to move along the second direction X2 relative to the mounting plate 20. The first rubberizing component 11 and the second rubberizing component 12 are both installed on the first motion seat 14 so as to move along the second direction X2 along with the first motion seat 14 relative to the mounting plate 20, thereby realizing that the first rubberizing component 11 and the second rubberizing component 12 move along the second direction X2 relative to the first rubberizing component 13, and further realizing that the rubberizing state and the rubberizing state are switched.

In this way, when the first adhesive tape B is not on the first rubberizing component 11, the driving unit 30 drives the first moving seat 14 to move along the second direction X2 until the first rubberizing component 11 moves to the first standby component 13 following the first moving seat 14, so that the adsorption end of the first rubberizing component 11 and the first adhesive tape B provided by the first standby component 13 are opposite to each other in the first direction X1. At this time, the suction end of the first adhesive tape assembly 11 sucks the first adhesive tape B provided by the first adhesive tape preparation assembly 13 along the first direction X1.

When the second adhesive tape assembly 12 does not have the first adhesive tape B thereon, the driving unit 30 drives the first moving seat 14 to move along the second direction X2 until the second adhesive tape assembly 12 moves to the first adhesive preparation assembly 13 following the first moving seat 14, such that the suction end of the second adhesive tape assembly 12 and the first adhesive tape B provided by the first adhesive preparation assembly 13 are opposite to each other in the first direction X1. At this time, the adsorption end of the second adhesive tape applying component 12 sucks the first adhesive tape B provided by the first adhesive tape preparing component 13 along the first direction X1.

When the pole piece material belt a needs to be rubberized, the driving unit 30 drives the first moving seat 14 to move along the second direction X2 (at this time, the first rubberizing component 11 and the second rubberizing component 12 move along the second direction X2 together with the first moving seat 14) until the adsorption ends of the first rubberizing component 11 and the second rubberizing component 12 are dislocated with the first standby component 13 in the first direction X1, and the adsorption ends of the first rubberizing component 11 and the second rubberizing component 12 are respectively opposite to the pole piece material belt passing through the two positions to be rubberized in the first direction X1. At this time, the suction end of the first rubberizing component 11 adheres the sucked first adhesive tape B to the pole piece material tape a along the first direction X1, and the suction end of the second rubberizing component 12 adheres the sucked first adhesive tape B to the pole piece material tape a along the first direction X1.

The driving unit 30 may be a linear module, such as a screw module, an electric cylinder, or the like, as long as the driving of the first motion base 14 in the second direction X2 can be achieved, which is not limited herein.

Optionally, a sliding rail is provided on the mounting plate 20, and the sliding rail extends lengthwise along the second direction X2. The first motion seat 14 is provided with a slider which is in sliding fit with the slide rail. In this way, the movement of the first kinematic seat 14 in the second direction X2 is guided by the movement of the slider along the slide rail.

Further, the mounting plate 20 includes a front surface, a rear surface opposite to the front surface, and a strip-shaped escape groove 21 penetrating the front and rear surfaces, the strip-shaped escape groove 21 extending lengthwise in the second direction X2. The first rubberizing assembly 11, the second rubberizing assembly 12, the first motion seat 14 and the first standby assembly 13 are all arranged on the front surface of the mounting plate 20, and the driving unit 30 is arranged on the back surface of the mounting plate 20. The driving end of the driving unit 30 passes through the bar-shaped avoidance groove 21 to be connected with the first movement seat 14, so that the driving unit 30 can drive the first movement seat 14 to move along the second direction X2. In this way, the driving unit 30 is arranged on the back of the mounting plate 20, so that the space on the front of the mounting plate 20 is saved, and the difficulty in spatial arrangement of the first rubberizing assembly 11, the second rubberizing assembly 12, the first motion seat 14 and the first standby rubberizing assembly 13 is reduced.

In particular, in the embodiment, the number of the first rubberizing units 10 is two, and the two first rubberizing units 10 are respectively arranged at two sides of the pole piece material belt a in the first direction X1. In this way, the first adhesive tapes B are simultaneously attached to the two sides of the pole piece material belt A by using the two first adhesive tape attaching assemblies 11, and the first adhesive tapes B are simultaneously attached to the two sides of the pole piece material belt A by using the two second adhesive tape attaching assemblies 12, so that the first adhesive tapes B are respectively attached to the two side surfaces of each corner F of the pole piece material belt A of the innermost ring of the battery cell 100, and the safety of the battery cell 100 is further improved.

Further, the first moving bases 14 of the two first rubberizing units 10 are fixedly connected through a connecting frame 31 (see fig. 5), so that the two first moving bases 14 can move synchronously. In this way, when the driving unit 30 drives one of the first moving bases 14 to move along the second direction X2, the other first moving base 14 also moves synchronously along the second direction X2, so that the two first rubberizing assemblies 11 and the two second rubberizing assemblies 12 move synchronously along the second direction X2, and further, the two first rubberizing units 10 are switched between the rubberizing state and the rubberizing state, so as to finish rubberizing and rubberizing.

It should be noted that, the two first rubberizing units 10 are driven to move by one driving unit 30, which is beneficial to simplifying the structure of the rubberizing device and reducing the cost of the rubberizing device.

Further, two strip-shaped avoidance grooves 21 are formed in the mounting plate 20, and the two strip-shaped avoidance grooves 21 are respectively opposite to the two first movement seats 14. The connecting frame 31 is positioned on the back of the mounting plate 20, and one end of the connecting frame 31 passes through one of the strip-shaped avoidance grooves 21 and is fixedly connected with the corresponding first movement seat 14; the other end of the connecting frame 31 passes through the other strip-shaped avoiding groove 21 and is fixedly connected with the other corresponding first moving seat 14, so that the fixed connection of the two first moving seats 14 is realized. When the driving unit 30 drives one of the first motion bases 14 to move along the second direction X2, the two first motion bases 14 and the connecting frame 31 connected between the two first motion bases 14 move along the second direction X2 together, and in this process, the two bar-shaped avoidance grooves 21 play a role in avoiding the movement of the connecting frame 31 along the second direction X2.

Referring to fig. 4 and 6, in the embodiment of the application, the first rubberizing device 11 includes a first driving structure 111 and a first adsorption plate 113. The first driving structure 111 is mounted on the first moving seat 14, and the first adsorption plate 113 is mounted at a driving end of the first driving structure 111 such that the first driving structure 111 can drive the first adsorption plate 113 to move in the first direction X1. The first adsorption plate 113 is used as an adsorption end of the first rubberizing component 11, and can controllably adsorb or release the first adhesive tape B.

Thus, when the first adhesive tape B is not provided on the first adsorption plate 113, the driving unit 30 drives the first moving seat 14 to move along the second direction X2 until the first adsorption plate 113 and the first adhesive tape B provided by the first adhesive preparation assembly 13 are opposite to each other in the first direction X1. At this time, the first driving structure 111 drives the first adsorption plate 113 to approach the first adhesive preparation assembly 13 along the first direction X1 until the first adsorption plate 113 contacts the first adhesive tape B provided on the first adhesive preparation assembly 13. Then, the first adhesive tape B is adhered by the first adhering plate 113. Then, the first driving structure 111 drives the first adsorption plate 113 to move away from the first glue preparing assembly 13 along the first direction X1 until returning to the initial position.

When the first adhesive tape B on the first adsorption plate 113 needs to be adhered to the pole piece material tape a, the driving unit 30 drives the first motion seat 14 to move along the second direction X2 until the first adsorption plate 113 reaches a position opposite to the pole piece material tape passing through the corresponding position to be adhered in the first direction X1. Then, the first driving structure 111 drives the first adsorption plate 113 to approach the pole piece material tape a along the first direction X1 until the first adhesive tape B is adhered to the pole piece material tape a. Then, the first adsorption plate 113 releases the adsorption of the first adhesive tape B, and is driven by the first driving structure 111 to move away from the pole piece material tape a along the first direction X1 until returning to the initial position.

Further, the first driving structure 111 is also capable of driving the first adsorption plate 113 to move in the third direction X3, thereby adjusting the position of the first adsorption plate 113 in the third direction X3. The third direction X3 intersects the first direction X1 and the second direction X2. In this way, the first driving structure 111 drives the first adsorption plate 113 to adjust the position along the third direction X3, so that the first adsorption plate 113 can accurately absorb the first adhesive tape B on the first adhesive preparation assembly 13 during adhesive preparation, and the first adsorption plate 113 can accurately adhere the first adhesive tape B to the pole piece material belt a passing through the corresponding position to be adhered during adhesive adhering. Preferably, the first direction X1, the second direction X2 and the third direction X3 are perpendicular to each other. The first direction X1 is a direction perpendicular to the pole piece material tape a, the second direction X2 is a conveying direction of the pole piece material tape a (i.e., a longitudinal direction of the pole piece material tape a), and the third direction X3 is a width direction of the pole piece material tape a.

It should be noted that the first driving structure 111 may be a relatively mature technology, so long as the first adsorption plate 113 can be driven to move along the first direction X1 and along the third direction X3, which is not limited herein.

In an embodiment of the present application, the second rubberizing assembly 12 includes a second driving structure 121 and a second suction plate 123. The second driving structure 121 is mounted on the first moving seat 14, and the second adsorption plate 123 is mounted at a driving end of the second driving structure 121, so that the second driving structure 121 can drive the second adsorption plate 123 to move along the first direction X1. The second adsorption plate 123 is used as an adsorption end of the second rubberizing component 12, and can controllably adsorb or release the first adhesive tape B.

Thus, when the first adhesive tape B is not provided on the second adsorption plate 123, the driving unit 30 drives the first moving seat 14 to move along the second direction X2 until the second adsorption plate 123 and the first adhesive tape B provided by the first adhesive preparation assembly 13 are opposite to each other in the first direction X1. At this time, the second driving structure 121 drives the second adsorption plate 123 to approach the first adhesive preparation assembly 13 along the first direction X1 until the second adsorption plate 123 contacts the first adhesive tape B provided on the first adhesive preparation assembly 13. Then, the second adsorption plate 123 adsorbs the first tape B. Then, the second driving structure 121 drives the second adsorption plate 123 away from the first glue preparing assembly 13 along the first direction X1 until returning to the initial position.

When the first adhesive tape B on the second adsorption plate 123 needs to be adhered to the pole piece material tape a, the driving unit 30 drives the first motion seat 14 to move along the second direction X2 until the second adsorption plate 123 reaches a position opposite to the pole piece material tape a passing through the corresponding position to be adhered in the first direction X1. Then, the second driving structure 121 drives the second adsorption plate 123 to approach the pole piece material tape a along the first direction X1 until the first adhesive tape B is adhered to the pole piece material tape a. Then, the second adsorption plate 123 releases the adsorption of the first adhesive tape B, and is driven by the second driving structure 121 to move away from the pole piece material tape a along the first direction X1 until returning to the initial position.

Further, the second driving structure 121 is also capable of driving the second adsorption plate 123 to move in the third direction X3, thereby adjusting the position of the second adsorption plate 123 in the third direction X3. In this way, the second driving structure 121 drives the second adsorption plate 123 to adjust the position along the third direction X3, so that the second adsorption plate 123 can accurately absorb the first adhesive tape B on the first adhesive preparation assembly 13 during adhesive preparation, and the second adsorption plate 123 can accurately adhere the first adhesive tape B to the pole piece material belt a passing through the corresponding position to be rubberized during rubberizing.

It should be noted that the second driving structure 121 may be a more mature technology, as long as the second adsorption plate 123 can be driven to move along the first direction X1 and the third direction X3, which is not limited herein.

Referring to fig. 3, in an embodiment of the present application, the rubberizing device further includes a cutting unit and a second rubberizing unit 40. The cutting unit is used for cutting the passing pole piece material belt A and separating two cutting ends a (see figure 1) formed by cutting the pole piece material belt A from each other by a certain distance. The second taping unit 40 is used to paste the second adhesive tape C onto the two cut ends a formed after the pole piece material tape a is cut such that the two cut ends a are re-connected by the second adhesive tape C. In this way, after the winding device winds the battery cell 100 by using the section of the pole piece material belt a, the second adhesive tape C is cut off between the two cutting ends a, so that the formed battery cell 100 is separated from the pole piece material belt a at the upstream. At this time, the cutting end a of the pole piece material belt a on the battery cell 100 is still wrapped by the second adhesive tape C, so as to avoid the burr of the cutting end a of the pole piece material belt a on the battery cell 100 from being exposed, and further improve the safety of the battery cell 100.

In particular, in the embodiment, the cutting unit includes a first clamping member 51, a cutting member 52, and a second clamping member 53 sequentially arranged at intervals in the second direction X2. The first clamping assembly 51, the cutting assembly 52 and the second clamping assembly 53 are all located on a side of the second rubberizing assembly 12 facing away from the first rubberizing assembly 11. The second rubberizing unit 40 comprises a third rubberizing assembly 41. The first clamping assembly 51, the cutting assembly 52, the second clamping assembly 53 and the third rubberizing assembly 41 are all disposed on the front face of the mounting plate 20 described above.

The first clamping assembly 51 and the second clamping assembly 53 are each used for clamping the pole piece material strip A passing through. The cutting assembly 52 is used to sever the strip of pole piece material a passing between the first clamping assembly 51 and the second clamping assembly 53. At least one of the first clamping component 51 and the second clamping component 53 can move along the second direction X2 relative to the other, so that the two cutting ends a formed by cutting the pole piece material belt A by the cutting component 52 are separated from each other by a certain distance. The third taping assembly 41 is used to paste the second adhesive tape C onto the two cut ends a of the pole piece material tape a formed by the cutting of the cutting assembly 52, so that the two cut ends a separated from each other are again connected by the second adhesive tape C.

Thus, when the second adhesive tape C needs to be applied to the pole piece material tape a, first, the first clamping assembly 51 and the second clamping assembly 53 are controlled to clamp the routed pole piece material tape a, so that the pole piece material tape a upstream and downstream of the cutting assembly 52 is clamped and fixed. The control cutting assembly 52 then cuts the pole piece web a by a position between the first clamping assembly 51 and the second clamping assembly 53. At this time, the two cut ends a of the pole piece material belt a are clamped and fixed by the first clamping component 51 and the second clamping component 53 respectively. Then, the first clamping assembly 51 and the second clamping assembly 53 are separated from each other in the second direction X2, so that the two cut ends a of the pole piece material tape a are separated from each other by a certain distance. Then, the third rubberizing assembly 41 pastes the second adhesive tape C onto the two cut ends a of the pole piece material tape a, so that the two cut ends a of the pole piece material tape a are re-connected by the second adhesive tape C. Finally, the first and second clamping assemblies 51, 53 release the pole piece strip a and move toward each other in the second direction X2 to the initial position in preparation for the next application of the second tape C.

In particular embodiments, the first clamping assembly 51 is controllably moved toward and away from the second clamping assembly 53 in the second direction X2 relative to the mounting plate 20. When the second adhesive tape C needs to be applied, first, the first clamping assembly 51 and the second clamping assembly 53 both clamp the pole piece material tape a passing through. After the cutting assembly 52 cuts the pole piece material belt a, the first clamping assembly 51 is far away from the second clamping assembly 53 along the second direction X2, so as to drive the two cutting ends a of the pole piece material belt a to be separated from each other by a certain distance. After the third rubberizing assembly 41 adheres the second tape C to the two cut ends a of the pole piece strip a, both the first clamping assembly 51 and the second clamping assembly 53 release the pole piece strip a. Then, the first clamping assembly 51 is moved a distance in the second direction X2 near the second clamping assembly 53 in preparation for the next application of the second adhesive tape C.

It should be noted that, when the distance between the position of attaching the first adhesive tape B and the position of attaching the second adhesive tape C on the pole piece material tape a is smaller, the space for accommodating the second adhesive tape assembly 12 and the cutting assembly 52 is narrower. In this embodiment, the first clamping assembly 51 is configured to be capable of moving along the second direction X2, on the one hand, the two cutting ends a of the pole piece material belt a can be driven to be separated from each other by a certain distance by utilizing the movement of the first clamping assembly 51 along the second direction X2; on the other hand, the first clamping component 51 can be moved along the second direction X2 to reserve enough space for the second and third rubberizing components 12 and 41 to perform rubberizing operation, so as to avoid interference of the first clamping component 51 to the rubberizing operation of the second and third rubberizing components 12 and 41.

Referring to fig. 3 and 8, in an embodiment, the first clamping assembly 51 includes a first moving plate 511, a first clamping plate 512, and a second clamping plate 513. The first moving plate 511 is movably coupled to the mounting plate 20 in the second direction X2. The first clamping plate 512 and the second clamping plate 513 are disposed opposite to each other on the first moving plate 511, and a clamping passage through which the pole piece material tape a passes is formed between the first clamping plate 512 and the second clamping. The first clamp plate 512 and the second clamp plate 513 controllably clamp or unclamp the pole piece strip a passing through the clamping channel. Thus, when it is desired to clamp the pole piece strip a, the first clamp plate 512 and the second clamp plate 513 are controlled to approach each other until the pole piece strip a routed through the clamping channel is clamped. When the two cut ends a of the pole piece material belt a need to be separated, the first moving plate 511 is controlled to be far away from the second clamping assembly 53 along the second direction X2 until the two cut ends a of the pole piece material belt a are driven to be separated from each other by a certain distance. When it is desired to unwind the pole piece strip a, the first clamp plate 512 and the second clamp plate 513 are controlled to be moved away from each other until the pole piece strip a routed through the clamping channel is unwound.

Preferably, the first clamping plate 512 and the second clamping plate 513 are opposite to each other in the first direction X1, and each of the first clamping plate 512 and the second clamping plate 513 is movable along the first direction X1 relative to the first moving plate 511, so that the first clamping plate 512 and the second clamping plate 513 can approach or separate from each other along the first direction X1, thereby realizing clamping or unclamping of the pole piece material strip a passing through the clamping channel.

Optionally, the first clamp assembly 51 further comprises a translational drive 526, a first clamp drive 527, and a second clamp drive 528. The translation driving member 526 is mounted on the mounting plate 20, and the driving end of the translation driving member 526 is connected to the first moving plate 511, so that the translation driving member 526 can drive the first moving plate 511 to move along the second direction X2 relative to the mounting plate 20. The first clamping driving part 527 is mounted on the first moving plate 511, and the driving end of the first clamping driving part 527 is connected with the first clamping plate 512 such that the first clamping driving part 527 can drive the first clamping plate 512 toward or away from the second clamping plate 513. The second clamp driving member 528 is mounted on the first moving plate 511, and the driving end of the second clamp driving member 528 is connected with the second clamp plate 513 such that the second clamp driving member 528 can drive the second clamp plate 513 toward or away from the first clamp plate 512.

The translation driving member 526 may be a linear driving member such as a linear module, and is not limited herein, as long as the first moving plate 511 can be driven to move in the second direction X2. The first clamping driving member 527 and the second clamping driving member 528 may be linear driving members such as air cylinders, so long as they can drive the first clamping plate 512 and the second clamping plate 513 to be close to each other and to be clamped or separated from each other and to be released, and are not limited herein.

Alternatively, the first moving plate 511 may be mounted on the mounting plate 20 by a guide mechanism such as a slide rail and a slider, so that the movement of the first moving plate 511 in the second direction X2 is guided by the guide mechanism. The first clamping plate 512 may be mounted on the first moving plate 511 by a guide mechanism such as a slide rail and a slider, so that the movement of the first clamping plate 512 toward or away from the second clamping plate 513 is guided by the guide mechanism. Similarly, the second clamping plate 513 may be mounted on the first moving plate 511 by a guide mechanism such as a rail and a slider, so that the movement of the second clamping plate 513 toward or away from the second clamping plate 513 is guided by the guide mechanism.

In particular, in one embodiment, a first blade 514 is mounted to the first clamping plate 512, the first blade 514 extending from the first clamping plate 512 toward the cutting assembly 52. A second blade 515 is mounted to the second clamp 513, the second blade 515 extending from the second clamp 513 toward the cutting assembly 52. When the first clamping plate 512 and the second clamping plate 513 clamp the pole piece material belt a passing through the clamping channel, the pole piece material belt a positioned between the first clamping plate 512 and the cutting assembly 52 is supported between the first supporting plate 514 and the second supporting plate 515, so that the corresponding cutting end a of the pole piece material belt a is supported and fixed, the sagging amount of the corresponding cutting end a of the pole piece material belt a is as small as possible, and the smooth adhesion of the second adhesive tape C between the two cutting ends a is ensured.

Further, the second clamp 513 and the second pallet 515 on the second clamp 513 are located below the pole piece strip a. The second pallet 515 has a first length in the second direction X2, and the first pallet 514 has a second length in the second direction X2. The first length dimension is greater than the second length dimension. In this way, the second supporting plate 515 located below the pole piece material belt a is lengthened, so that the second supporting plate 515 can support the longer pole piece material belt a, and further, the corresponding cut end a of the pole piece material belt a is ensured not to generate larger sagging.

It should be noted that the structure of the second clamping assembly 53 is similar to that of the first clamping assembly 51, and thus will not be described herein.

In an embodiment of the present application, the second rubberizing unit 40 further includes a second adhesive preparation assembly 42, and the second adhesive preparation assembly 42 is used for providing the second adhesive tape C to the adsorption end of the third rubberizing assembly 41. The suction end of the third rubberizing component 41 is controllably movable along the first direction X1 and is used for sucking or releasing the second tape C. The third rubberizing assembly 41 is movably disposed on the mounting plate 20 along the second direction X2 and is movable to a standby position and a rubberizing position along the second direction X2. When the third rubberizing component 41 moves to the rubberizing position (as shown in fig. 3), the adsorption end of the third rubberizing component 41 is opposite to the second adhesive tape C provided by the second rubberizing component 42 in the first direction X1, so that the adsorption end of the third rubberizing component 41 can absorb the second adhesive tape C provided by the second rubberizing component 42 when moving along the first direction X1; when the third rubberizing component 41 moves to the rubberizing position, the adsorption end of the third rubberizing component 41 is opposite to two cutting ends a formed by cutting the cut component 52 of the pole piece material belt A in the first direction X1, so that the adsorption end of the third rubberizing component 41 can adhere the sucked second adhesive tape C to the two cutting ends a when moving along the first direction X1.

In this way, when the third tape assembly 41 does not have the second tape C, the third tape assembly 41 is controlled to move to the tape preparation position along the second direction X2. At this time, the adsorption end of the third adhesive tape sticking component 41 can absorb the second adhesive tape C provided on the second adhesive tape preparing component 42. When the second tape C needs to be applied, the third tape application component 41 is controlled to move to the tape application position along the second direction X2. At this time, the suction end of the third rubberizing component 41 can paste the sucked second adhesive tape C onto the two cut ends a of the pole piece material tape a.

In particular to the embodiment, the third rubberizing assembly 41 comprises a second kinematic seat, a third driving structure 411 (see fig. 10) and a third suction plate 413 (see fig. 10). The second motion seat is movably coupled to the mounting plate 20 in a second direction X2. The third driving structure 411 is mounted on the second moving seat, and the third adsorption plate 413 is mounted at the driving end of the third driving structure 411 such that the third driving structure 411 can drive the third adsorption plate 413 to move in the first direction X1. The third suction plate 413 serves as a suction end of the third tape application unit 41, and can controllably suck or release the second tape C.

In this way, when the third suction plate 413 does not have the second adhesive tape C, the second moving seat is controlled to move along the second direction X2 relative to the mounting plate 20 until the third suction plate 413 reaches the adhesive preparation position, so that the third suction plate 413 and the second adhesive tape C provided by the second adhesive preparation assembly 42 are opposite to each other in the first direction X1. At this time, the third driving structure 411 drives the third suction plate 413 to approach the second adhesive preparation assembly 42 along the first direction X1 until the third suction plate 413 contacts the second adhesive tape C provided on the second adhesive preparation assembly 42. Then, the third suction plate 413 sucks the second tape C. Then, the third driving structure 411 drives the third adsorption plate 413 to move away from the second glue assembly 42 along the first direction X1 until returning to the initial position.

When the second adhesive tape C on the third adsorption plate 413 needs to be adhered to the pole piece material tape a, the second motion seat is controlled to move along the second direction X2 relative to the mounting plate 20 until the third adsorption plate 413 reaches the rubberizing position, so that the two cut ends a of the third adsorption plate 413 and the pole piece material tape a are opposite in the first direction X1. Then, the third driving structure 411 drives the third adsorption plate 413 to approach the pole piece material tape a in the first direction X1 until the second adhesive tape C is attached to the two cut ends a of the pole piece material tape a. Then, the third adsorption plate 413 releases the adsorption to the second adhesive tape C, and is driven by the third driving structure 411 to move away from the pole piece material tape a along the first direction X1 until returning to the initial position.

Further, the third driving structure 411 can also drive the third suction plate 413 to move along the third direction X3, thereby adjusting the position of the third suction plate 413 in the third direction X3. In this way, the third driving structure 411 drives the third adsorption plate 413 to adjust the position along the third direction X3, so that the third adsorption plate 413 can accurately absorb the second adhesive tape C on the second adhesive preparation assembly 42 when the adhesive is prepared, and the third adsorption plate 413 can accurately adhere the second adhesive tape C to the two cutting ends a of the pole piece material belt a when the adhesive is adhered.

It should be noted that the third driving structure 411 may be a relatively mature technology, as long as the third driving structure can drive the third adsorption plate 413 to move along the first direction X1 and the third direction X3, which is not limited herein.

Referring to fig. 10, in the embodiment, in the second direction X2, the second driving structure 121 is located on a side of the second adsorption plate 123 facing away from the third adsorption plate 413, and the third driving structure 411 is located on a side of the third adsorption plate 413 facing away from the second adsorption plate 123. Thus, when the second rubberizing component 12 pastes the first adhesive tape B onto the pole piece material tape A, the second driving structure 121 does not interfere with the third rubberizing component 41; when the third rubberizing component 41 pastes the second adhesive tape C between the two cutting ends a of the pole piece material tape A, the third driving structure 411 cannot interfere with the second rubberizing component 12, so that the space utilization rate is improved, and the difficulty of space layout of each component is reduced.

Further, in the second direction X2, the first driving structure 111 is located at a side of the first adsorption plate 113 facing away from the second adsorption plate 123, thereby improving space utilization and facilitating the spatial layout of the first driving structure 111 and the second driving structure 121.

Referring to fig. 9, in the embodiment, the cutting assembly 52 is movably disposed on the mounting plate 20 along the second direction X2 and is connected to the second moving seat of the third rubberizing assembly 41, so that the cutting assembly 52 can move along the second direction X2 along with the third rubberizing assembly 41. Further, the cutting unit further includes a moving driving member 53 mounted on the mounting plate 20, where the moving driving member 53 is in driving connection with the cutting assembly 52 to drive the cutting assembly 52 to move along the second direction X2, so that the cutting assembly 52 drives the third rubberizing assembly 41 to move along the second direction X2 together, that is, the third rubberizing assembly 41 and the cutting assembly 52 move along the second direction X2 together, so that the cutting assembly 52 can move to a rubberizing position (when the cutting assembly 52 cuts off the pole piece tape a), the third rubberizing assembly 41 can move to a standby position (when the third rubberizing assembly 41 finishes rubberizing), and the third rubberizing assembly 41 can move to a rubberizing position (when the third rubberizing assembly 41 finishes rubberizing). Alternatively, the moving driving member 53 may be a linear driving member such as a linear module, so long as the cutting assembly 52 and the third rubberizing assembly 41 can be driven to move along the second direction X2, which is not limited herein.

It will be appreciated that the driving end of the moving driving member 53 may be connected to the second moving seat of the third rubberizing assembly 41, and it is also possible to simultaneously drive the third rubberizing assembly 41 and the cutting assembly 52 to move together in the second direction X2.

It should be noted that, when the cutting assembly 52 moves to the rubberizing position, the third rubberizing assembly 41 leaves the rubberizing position, so as to avoid the interference of the third rubberizing assembly 41 to the cutting action of the cutting assembly 52. When the third rubberizing component 41 moves to the rubberizing position, the cutting component 52 leaves the rubberizing position, so that the cutting component 52 is prevented from interfering with the rubberizing action of the third rubberizing component 41.

It should be further noted that, the movement of the cutting assembly 52 and the third rubberizing assembly 41 in the second direction X2 is achieved by using one moving driving member 53, which is beneficial to simplifying the structure of the rubberizing device and reducing the cost of the rubberizing device.

In the embodiment, the two second rubberizing units 40 are disposed on two sides of the pole piece material belt a in the first direction X1, so that the third rubberizing assemblies 41 of the two second rubberizing units 40 paste the second adhesive tapes C onto the two cut ends a of the pole piece material belt a from two sides of the pole piece material belt a at the same time, so that the second adhesive tapes C on two sides of the pole piece material belt a wrap the two cut ends a of the pole piece material belt a together.

Based on the winding device, the invention further provides the battery cell 100. The battery cell 100 is wound by the winding device of the winding apparatus described in any of the embodiments above. The battery cell 100 is flat, and first adhesive tapes B are adhered to two corners F of a pole piece material tape A at the innermost ring of the battery cell 100.

Further, the first adhesive tapes B are adhered to two side surfaces of each corner F of the pole piece material belt a of the innermost ring of the battery cell 100, so that two side surfaces of the corner F of the pole piece material belt a of the innermost ring are protected, and the safety of the battery cell 100 is further improved.

Further, the cutting end a of the pole piece material belt a positioned inside the battery cell 100 is wrapped with the second adhesive tape C, so that burrs of the cutting end a are prevented from being exposed, and the safety of the battery cell 100 is improved. The cutting end a of the pole piece material belt A positioned outside the battery cell 100 is wrapped with the second adhesive tape C, so that burrs of the cutting end a are prevented from being exposed, and the safety of the battery cell 100 is improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. The rubberizing device is characterized by comprising a first rubberizing unit, wherein the first rubberizing unit comprises a first rubberizing component, a second rubberizing component and a first rubberizing component; the first rubberizing component and the second rubberizing component are arranged at intervals along a second direction, and the first rubberizing component can be used for providing a first adhesive tape for the first rubberizing component and the second rubberizing component; the adsorption ends of the first rubberizing component and the second rubberizing component can move controllably along a first direction intersecting the second direction, and can be used for adsorbing or loosening a first adhesive tape; the first rubberizing component and the second rubberizing component can relatively move to a rubberizing state and a rubberizing state in the second direction respectively with the first rubberizing component.

2. The rubberizing device of claim 1, wherein an adsorption end of said first rubberizing component or said second rubberizing component is opposite to a first tape provided by said first rubberizing component in said first direction when in said rubberizing state; when the pole piece material belt is in the rubberizing state, the adsorption ends of the first rubberizing component and the second rubberizing component are opposite to the pole piece material belt in the first direction.

3. The rubberizing device of claim 1, further comprising a mounting plate, said first rubberizing assembly and said second rubberizing assembly being fixedly mounted on said mounting plate, said first standby assembly being movably connected to said mounting plate along said second direction.

4. The rubberizing device of claim 1, further comprising a mounting plate, said first rubberizing assembly being movably coupled to said mounting plate along said second direction, said second rubberizing assembly being movably coupled to said mounting plate along said second direction, said first standby assembly being fixedly mounted to said mounting plate.

5. The rubberizing device of claim 1, wherein said rubberizing device comprises a further mounting plate, one of said first rubberizing component and said second rubberizing component being movably connected to said mounting plate along said second direction, the other of said first rubberizing component and said second rubberizing component being fixedly connected to said mounting plate, said first backup component being movably connected to said mounting plate along said second direction.

6. The rubberizing device according to claim 4, wherein said first rubberizing unit further comprises a first motion seat, said rubberizing device further comprising a drive unit;

The first motion seat is arranged on the mounting plate, the driving unit is connected with the first motion seat and can drive the first motion seat to move along the second direction relative to the mounting plate, and the first rubberizing component and the second rubberizing component are both arranged on the first motion seat.

7. The rubberizing device according to claim 6, wherein the number of the first rubberizing units is two, and the two first rubberizing units are respectively arranged at two sides of the pole piece material belt in the first direction;

8. The rubberizing device of claim 1, further comprising a cutoff unit and a second rubberizing unit, said cutoff unit comprising a first clamping assembly, a cutting assembly and a second clamping assembly sequentially spaced along said second direction, said first clamping assembly, said cutting assembly and said second clamping assembly being all located on a side of said second rubberizing assembly facing away from said first rubberizing assembly;

The second rubberizing unit comprises a third rubberizing component, the first clamping component and the second clamping component are both used for clamping a pole piece material belt passing through, the cutting component is used for cutting off the pole piece material belt passing through, at least one of the first clamping component and the second clamping component can move along the second direction relative to the other, and the third rubberizing component is used for sticking a second adhesive tape to two cutting ends formed by cutting off the pole piece material belt.

9. The rubberizing device of claim 8, wherein said first clamp assembly is controllably moved in said second direction toward or away from said second clamp assembly.

10. The rubberizing device of claim 9, wherein said first clamping assembly comprises a first movable plate, a first clamping plate and a second clamping plate, said first movable plate being controllably movable in said second direction, said first clamping plate and said second clamping plate being disposed on said first movable plate opposite each other, a clamping channel being formed between said first clamping plate and said second clamping plate for passing a pole piece strip therethrough, said first clamping plate and said second clamping plate being controllably clampable or releasable from a pole piece strip routed through said clamping channel.

11. The rubberizing device of claim 10, wherein said first clamp plate has a first blade mounted thereon, said first blade extending from said first clamp plate toward said cutting assembly; a second supporting plate is arranged on the second clamping plate, and extends from the second clamping plate to the cutting assembly;

12. The rubberizing device according to claim 8, wherein said second rubberizing unit further comprises a second tape preparation assembly for providing a second tape, said suction end of said third rubberizing assembly being controllably movable in said first direction and for sucking or releasing a second tape;

13. The rubberizing device of claim 8, wherein said cutting assembly is movably disposed along said second direction and is connected to said third rubberizing assembly such that said cutting assembly moves along said second direction along with said third rubberizing assembly.

14. A winding apparatus comprising a winding device and a rubberizing device according to any one of claims 1 to 13, said winding device being arranged downstream of said rubberizing device to wind a sheet of material passing through said rubberizing device into a cell.

15. A battery cell is characterized in that the battery cell is formed by winding by using the winding equipment according to the claim, and first adhesive tapes are adhered to two corners of the pole piece material belt of the innermost ring of the battery cell.