CN223487075U

CN223487075U - Lithium battery electrode slice laminating device

Info

Publication number: CN223487075U
Application number: CN202422489243.8U
Authority: CN
Inventors: 沈天旭; 候秋阁; 厉强; 杨庆亨
Original assignee: Zhongxing Pylon Battery Co Ltd
Current assignee: Zhongxing Pylon Battery Co Ltd
Priority date: 2024-10-15
Filing date: 2024-10-15
Publication date: 2025-10-28
Anticipated expiration: 2034-10-15

Abstract

The utility model discloses a lithium battery electrode slice laminating device, which particularly relates to the field of lithium battery production equipment, and comprises a glue removing mechanism, wherein the glue removing mechanism comprises a frame, a conveying roller, a winding roller and a cleaning strip, the conveying roller and the winding roller are both rotationally connected to the frame, the cleaning strip sequentially bypasses the conveying roller and is wound by the winding roller, the laminated diaphragm electrode slice laminating object sequentially passes through a plurality of conveying rollers and is wound by a winding machine, the side edges of the diaphragm electrode slice laminating object are laminated with the cleaning strip in a differential mode, the glue removing mechanism is arranged between the output end of the laminating mechanism and the winding machine, the cleaning strip in the glue removing mechanism is laminated with the diaphragm electrode slice laminating object in a differential mode, and the laminating object and the cleaning strip perform relative movement on the premise of having a differential speed, so that glue overflowed from the edge of the laminating object can be erased by the cleaning strip, normal winding of the laminating object is still reasonably ensured in the whole process, and the purposes of high-efficiency winding and glue removing are achieved.

Description

Lithium battery electrode slice laminating device

Technical Field

The utility model relates to the field of lithium battery production equipment, in particular to a device for attaching electrode plates of a lithium battery.

Background

Lithium batteries are a type of battery using a nonaqueous electrolyte solution with lithium metal or a lithium alloy as a positive/negative electrode material.

The common lithium battery is provided with a cylindrical lithium battery, a square lithium battery and a soft-package lithium battery, and the lithium battery with any shape is manufactured by winding a diaphragm and positive and negative electrode plates at intervals in a laminating way.

When laminating diaphragm, positive and negative electrode piece, have glue laminating and have glue laminating, in the glue laminating production process, the glue solution can be extruded positive and negative electrode piece and the side of diaphragm by the roll body and overflow in the rolling process, does not clear it and can cause the influence to subsequent production and use.

Disclosure of utility model

In order to overcome the defects in the prior art, the embodiment of the utility model provides a fitting device for electrode plates of a lithium battery, and the technical problem to be solved by the utility model is how to efficiently remove glue solution overflowed between a diaphragm and positive and negative electrode plates in a rolling process.

The utility model provides a lithium battery electrode slice laminating device which comprises a glue removing mechanism, a frame, a conveying roller, a winding roller and a cleaning strip, wherein the conveying roller and the winding roller are both rotationally connected to the frame, the cleaning strip is wound around the conveying roller in sequence and then is wound by the winding roller, the laminated diaphragm electrode slice laminating object is wound by a winding machine after passing through a plurality of conveying rollers in sequence, and the side edges of the diaphragm electrode slice laminating object are laminated with the cleaning strip in a differential mode.

In a preferred embodiment, a motor is arranged outside the frame, an output shaft of the motor is in meshed transmission with the winding roller through a transmission gear, and the motor is electrically connected with an external controller.

In a preferred embodiment, a release roller is rotatably connected to the frame, the release roller and the wind-up roller are symmetrically arranged, and the cleaning strip is released by the release roller.

In a preferred embodiment, the frame comprises a vertical plate and a side link, the two vertical plates are vertically arranged, the vertical plates are fixed through a winding roller at the corresponding side and a shell of the winding machine, and the conveying roller, the winding roller and the releasing roller are all rotationally connected to the vertical plates.

In a preferred embodiment, the frame further comprises a transverse plate and a notch, wherein the transverse plate is horizontally and fixedly connected between the two vertical plates, the plurality of conveying rollers are respectively arranged on the upper side and the lower side of the transverse plate in a staggered mode, and the vertical plates are provided with the notches for the cleaning strips and the diaphragm pole piece laminating objects to pass up and down.

In a preferred embodiment, the glue removing mechanism is provided with a tensioning mechanism for adjusting the tightness of the fitting objects of the cleaning strips and the diaphragm pole pieces, and the tensioning mechanism comprises an arch frame, a screw rod and a rotating handle, wherein the arch frame is arranged in the frame in a sliding manner, the arch frame is in rotary connection with a corresponding conveying roller, the screw rod is in threaded connection with the arch frame and is in rotary connection with a transverse plate, and the outer end of the screw rod is fixedly connected with the rotating handle.

In a preferred embodiment, the side wall of the vertical plate is provided with a chute, and the arch frame is slidably arranged in the chute.

In a preferred embodiment, a rotating rod matched with the conveying roller and the winding roller is fixed on the frame, the conveying roller and the winding roller are sleeved on the rotating rod, and an anti-falling knob is screwed on the rotating rod.

In a preferred embodiment, the winding speed of the cleaning strip is greater than the winding speed of the diaphragm pole piece.

In a preferred embodiment, the width of the cleaning bar is less than the length of the bus bar of the transfer roller.

The utility model has the technical effects and advantages that:

By arranging the glue removing mechanism between the output end of the pressing mechanism and the winding machine, the cleaning strips in the glue removing mechanism and the diaphragm pole piece laminating objects are subjected to differential laminating, and the laminating objects and the cleaning strips perform relative movement under the premise of differential speed, so that the cleaning strips can be enabled to erase glue solution overflowed from the edges of the laminating objects, normal winding of the laminating objects is still reasonably ensured in the whole process, and the purposes of high-efficiency winding and glue removal are achieved.

Drawings

The accompanying drawings are included to provide a further understanding of the technical aspects of the utility model, and are incorporated in and constitute a part of this specification, and are included to illustrate and explain the utility model.

Fig. 1 is a structural view of a lithium battery electrode sheet bonding apparatus according to the present utility model.

Fig. 2 is a rear view of the frame according to the present utility model.

Fig. 3 is a front view of the frame according to the present utility model.

Fig. 4 is a side cross-sectional view of a frame in accordance with the present utility model.

The device comprises a glue removing mechanism 1, a frame 11, a 111, a transverse plate 112, a vertical plate 113, a side link 114, a notch 12, a conveying roller 13, a winding roller 14, a motor 15, a releasing roller 2, a tensioning mechanism 21, an arch frame 22, a screw rod 23, a rotating handle 3 and a winding machine.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments may be embodied in many different forms and should not be construed as limited to the examples set forth herein, but rather, the example embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, steps, etc. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Example 1

As shown in fig. 1-4, a fitting device for electrode plates of lithium batteries comprises a glue removing mechanism 1, a pressing mechanism and a winding machine 3, wherein the glue removing mechanism 1 is used for receiving a diaphragm electrode plate fitting object output from the pressing mechanism, the diaphragm electrode plate fitting object passes through the glue removing mechanism 1 and then is finally wound by the winding machine 3, and when the fitting object enters the glue removing mechanism 1, glue liquid overflowed from two sides of the fitting object can be removed in the glue removing mechanism 1.

Specifically, in the production process of lithium batteries, positive and negative electrode sheets coated with active substances and porous separator materials are prepared first, and then the surfaces of the materials are ensured to be clean through pretreatment such as washing, drying and the like. Then, the positive electrode sheet, the separator and the negative electrode sheet are sequentially arranged and closely attached in a winding or stacking manner according to the battery design, and the separator is required to be slightly wider to cover the edges to prevent short circuit. And then outputting the laminated object from the laminating mechanism, and winding the laminated object by a winding machine 3.

The glue removing mechanism 1 comprises a frame 11, a wind-up roller 13, a motor 14 and a release roller 15, wherein a plurality of wind-up rollers 13 are respectively and rotatably connected at the high and low positions on the frame 11, one wind-up roller 13 and one release roller 15 are respectively and rotatably connected with the wind-up rollers, a cleaning strip pulled out from the release roller 15 is wound around a plurality of high and low arranged conveying rollers 12 in sequence and then is wound up by the wind-up rollers 13, a motor 14 is mounted on the frame 11, an output shaft of the motor 14 drives the wind-up rollers 13 to rotate through a transmission gear set, and the motor 14 is used for driving the wind-up rollers 13 to rotate relative to the frame 11 so as to continuously wind up the cleaning strip wound on the wind-up rollers 13.

One of the gears is fixedly connected with the output shaft of the motor 14, the other gear is fixedly connected with the end face of the wind-up roll 13, the gears are meshed for transmission, and the transmission gear set is of a common driving design, so that the embodiment is not repeated here.

After the structure is arranged, after the diaphragm pole piece laminating object is pulled out from the output end of the pressing mechanism, the laminating object sequentially passes through the conveying rollers 12 which are arranged at high and low, at the moment, the cleaning strip is positioned between the conveying rollers 12 and the laminating object, the cleaning strip is in laminating contact with the side edge parts of the laminating object, one end of the laminating object is coiled by the coiling machine 3, the speed of the coiling machine 3 for coiling the laminating object is controlled by the external controller to be different from the speed of the coiling roller 13 for coiling the cleaning strip, and therefore, when the laminating object with the poor speed and the cleaning strip relatively move, glue liquid positioned at the side edge of the laminating object can be erased by the cleaning strip, so that the glue liquid overflowed from the edge of the laminating object is removed while the laminating object is coiled formally, and the purpose of high-efficiency coiling and glue removal is realized.

Preferably, the cleaning strip is generally selected from non-woven fabrics, microfiber cloths or paper-based materials.

Preferably, the frame 11 specifically includes diaphragm 111, riser 112, side link 113 and notch 114, and diaphragm 111 level is placed, and the both sides of diaphragm 111 all are connected with the riser 112 of side standing, and the outside of riser 112 is through the shell fixed connection of side link 113 and rolling machine 3, has seted up a plurality of notches 114 on the diaphragm 111, and notch 114 is located between two adjacent conveying rollers 12 that transversely lay, and a plurality of conveying rollers 12 that highly lay are located the both sides of diaphragm 111 respectively, and notch 114 is used for providing the space and supplies laminating thing, clean strip to pass from top to bottom.

Preferably, the side link 113 is L-shaped in shape, facilitating attachment or welding by fasteners.

Preferably, the width of the cleaning strip is selected according to the needs of the user, and is not too wide and is smaller than the widths of the conveying roller 12 and the wind-up roller 13. When the cleaning strip is used, the cleaning strip with the narrow side only needs to clean the glue overflowing parts of the sides of the positive and negative electrode plates, so that the material loss can be effectively reduced by reducing the width of the cleaning strip.

Preferably, the vertical plate 112 is fixedly provided with a rotating rod matched with the conveying roller 12 and the winding roller 13, the conveying roller 12 and the winding roller 13 are sleeved on the rotating rod, and the rotating rod is in threaded connection with an anti-falling knob. When the cleaning strip rolling device is used, the shaft holes in the conveying roller 12 and the rolling roller 13 are aligned with the rotating rods, then the rotating rods are screwed through the anti-falling knob, anti-falling limitation is carried out on the side edges of the conveying roller 12 and the rolling roller 13, and cleaning strips on the conveying roller 12 and the rolling roller 13 are replaced conveniently when necessary.

Example 2

As shown in fig. 4, on the basis of the embodiment 1, a tensioning mechanism 2 is further provided for adjusting the tensioning degree of the cleaning cloth and the attached matter between the plurality of conveying rollers 12.

Specifically, the tensioning mechanism 2 comprises an arch frame 21, a screw rod 22 and a rotating handle 23, a chute is formed in the side wall of the vertical plate 112, the arch frame 21 is arranged in the chute in a sliding manner, the tail end of the arch frame 21 is in rotary connection with the corresponding conveying roller 12, a gap between the conveying roller 12 and the vertical plate 112 is formed, the screw rod 22 penetrates through the arch frame 21 and the transverse plate 111, the screw rod 22 is in rotary connection with the transverse plate 111 and is in threaded connection with the arch frame 21, the top of the screw rod 22 is fixedly connected with the rotating handle 23, a user drives the screw rod 22 to rotate through the rotating handle 23, and accordingly the arch frame 21 is adjusted to ascend or descend relative to the vertical plate 112, and the conveying roller 12 connected with the arch frame 21 is driven to squeeze or loosen cleaning strips and the fitting objects contacted with the conveying roller 12, so that the purpose of flexibly adjusting the tensioning force is achieved.

For example, in actual production, as the amount of the cleaning strip wound by the winding roller 13 increases, the overall volume of the winding roller 13 becomes larger, the bonded object attached to the surface of the winding roller 13 is pressed, and the surface tension of the cleaning strip and the bonded object is reduced by timely adjusting the screw 22, so as to ensure the flatness of the bonded object in the winding process.

In this embodiment, a telescopic cylinder can be designed, the cylinder body of the telescopic cylinder is fixed with the vertical plate 112, a telescopic rod is slidably connected in the cylinder body, the telescopic rod is rotationally connected with the corresponding conveying roller 12, a control component for controlling the telescopic rod to move is arranged in the cylinder body, the control component is electrically connected with an external controller, an operation code is arranged in the external controller, and the rolling flatness of the laminating object during rolling is maintained by reasonably controlling the moving speed of the telescopic rod.

Preferably, the telescopic cylinder may be an electric cylinder, a hydraulic cylinder, a cylinder or the like, and in this embodiment, the electric cylinder is preferred, and the operation of the electric cylinder is more stable.

The working principle of the utility model is as follows:

through lay except that gluey mechanism 1 between pressing mechanism's output and rolling machine 3, let to remove and have poor speed between the clean strip in the gluey mechanism 1 and the diaphragm pole piece laminating thing, laminating thing and clean strip carry out relative motion under the prerequisite that has poor speed to can let clean strip erase the glue solution that laminating thing edge overflowed, and still rationally guarantee the normal rolling process of laminating thing at whole in-process, realize high-efficient rolling, remove the purpose of gluing.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, where "up," "down," "left," "right," etc. are merely used to indicate relative positional relationships, and when the absolute position of an object to be described changes, the relative positional relationships may change;

In the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other without conflict;

Finally, the foregoing description of the preferred embodiment of the utility model is provided for the purpose of illustration only, and is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. The utility model provides a lithium cell electrode slice laminating device which characterized in that includes:

The glue removing mechanism (1) comprises a frame (11), a conveying roller (12), a winding roller (13) and a cleaning strip, wherein the conveying roller (12) and the winding roller (13) are both rotationally connected to the frame (11), and the cleaning strip is wound by the winding roller (13) after sequentially bypassing the conveying roller (12);

The separator pole piece laminating object after being pressed sequentially passes through a plurality of conveying rollers (12) and then is coiled by a coiling machine (3), and the side edges of the separator pole piece laminating object are laminated with the cleaning strips in a differential mode.

2. The device for attaching the electrode plate of the lithium battery according to claim 1, wherein a motor (14) is arranged outside the frame (11), an output shaft of the motor (14) and the winding roller (13) are in meshed transmission through a transmission gear, and the motor (14) is electrically connected with an external controller.

3. The device for attaching the electrode plates of the lithium battery according to claim 1 or 2, wherein the frame (11) is rotatably connected with a release roller (15), the release roller (15) and the winding roller (13) are symmetrically arranged, and the cleaning strip is released by the release roller (15).

4. The device for attaching the electrode plates of the lithium battery according to claim 3, wherein the frame (11) comprises vertical plates (112) and side connecting rods (113), the two vertical plates (112) are vertically arranged, the vertical plates (112) are fixed through winding rollers (13) at corresponding sides and shells of the winding machine (3), and the conveying rollers (12), the winding rollers (13) and the releasing rollers (15) are all rotationally connected to the vertical plates (112).

5. The device for attaching electrode plates of lithium batteries of claim 4, wherein the frame (11) further comprises a transverse plate (111) and a notch (114), the transverse plate (111) is horizontally and fixedly connected between two vertical plates (112), the plurality of conveying rollers (12) are respectively arranged on the upper side and the lower side of the transverse plate (111) in a staggered mode, and the vertical plates (112) are provided with the notch (114) for a cleaning strip and a diaphragm electrode plate attaching object to pass up and down.

6. The device for attaching the electrode plates of the lithium battery according to claim 5, wherein the adhesive removing mechanism (1) is provided with a tensioning mechanism (2) for adjusting the tightness of attaching objects of the cleaning strips and the diaphragm electrode plates, the device comprises an arch frame (21), a screw rod (22) and a rotating handle (23), the arch frame (21) is arranged in the frame (11) in a sliding mode, the arch frame (21) is in rotary connection with the corresponding conveying roller (12), the screw rod (22) is in threaded connection with the arch frame (21) and is in rotary connection with the transverse plate (111), and the outer end of the screw rod (22) is fixedly connected with the rotating handle (23).

7. The device for attaching electrode plates of a lithium battery according to claim 6, wherein a chute is formed in a side wall of the vertical plate (112), and the arch frame (21) is slidably disposed in the chute.

8. The device for attaching the electrode plate of the lithium battery as defined in claim 5, wherein the frame (11) is fixedly provided with a rotating rod matched with the conveying roller (12) and the winding roller (13), the conveying roller (12) and the winding roller (13) are sleeved on the rotating rod, and the rotating rod is in threaded connection with an anti-falling knob.

9. The device for attaching the electrode plate of the lithium battery as defined in claim 1, wherein the winding speed of the cleaning strip is greater than the winding speed of the diaphragm electrode plate.

10. The device for attaching electrode sheets to a lithium battery according to claim 1, wherein the cleaning strip has a width smaller than a length of a bus bar of the transfer roller (12).