Battery cell taping equipment

Abstract

The application discloses a kind of battery core rubberizing equipment, the battery core rubberizing equipment includes: machine table;Adhesive paper conveying device is installed on machine table;Battery core driving device is installed on machine table, for driving battery core rotates around the center axis of the battery core;Adhesive paper cutting device is installed on machine table, adhesive paper cutting device includes cutting piece, the length direction of cutting piece is not perpendicular to the length direction of adhesive paper, cutting piece is used to cut adhesive paper and make the end of cut-off adhesive paper and the included angle of the side edge of adhesive paper close to battery core is acute angle;Adhesive paper laminating device is installed on machine table, adhesive paper laminating device includes first rubberizing roller, first rubberizing roller is used to contact with the outer side of battery core and make the outer side of battery core and adhesive paper laminating;Adhesive paper pressing device is installed on machine table, adhesive paper pressing device is used to press the part of adhesive paper protruding from the end surface of battery core to the end surface of battery core.The application can avoid the end of adhesive paper to be raised, improve the yield of battery processing.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, specifically to a battery cell adhesive bonding device. Background Technology

[0002] With the acceleration of industrial automation, the scarcity of energy, and the increasing global environmental pressure, lithium batteries have been widely used, which has also placed higher demands on their performance.

[0003] In lithium battery production, to ensure insulation between the battery tabs and the casing / cover, adhesive tape needs to be applied to the outer side of the battery cell's end face. Current methods for attaching the tape to the cell involve wrapping the tape around the outer surface of the cell, with a portion protruding from one end. This protruding portion is then pressed to adhere to the cell's end face. However, when using existing battery tab application equipment to wrap the tape around the cell, the tape's end tends to peel off due to poor adhesion. In subsequent pressing processes, the shape of this peeling end is difficult to control, and it can easily deform under pressure and fold outwards from the cell's end face, leading to failures in subsequent cell assembly and welding.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this application is to provide a battery cell adhesive application device to solve the problem that existing adhesive tape tends to lift up after being applied to the outside of the battery cell.

[0006] To solve the above problems, the technical solution of this application is as follows:

[0007] In a first aspect, this application proposes a battery cell adhesive bonding device, comprising:

[0008] Machine tool;

[0009] An adhesive tape conveying device is installed on the machine base and is used to convey adhesive tape to be attached to the outer surface of the battery cell.

[0010] A cell drive device is mounted on the machine base and is used to drive the cell to rotate around the central axis of the cell;

[0011] A tape cutting device is installed on the machine base. The tape cutting device includes a cutting component. The length direction of the cutting component is not perpendicular to the length direction of the tape. The cutting component is used to cut the tape and make the angle between the end of the cut tape and the side of the tape near the battery cell acute.

[0012] An adhesive tape bonding device is installed on the machine base. The adhesive tape bonding device includes a first adhesive tape roller, which is used to contact the outer side of the battery cell and bond the outer side of the battery cell to the adhesive tape.

[0013] An adhesive tape pressing device is installed on the machine base. The adhesive tape pressing device is used to press the portion of the adhesive tape protruding from the end face of the battery cell to the end face of the battery cell.

[0014] Furthermore, the adhesive tape pressing device includes an adhesive tape pressing plate, the adhesive tape pressing plate is provided with a receiving groove, the receiving groove is used to receive one end of the battery cell with the adhesive tape attached, a guide surface is provided between the inner end face of the receiving groove and the inner sidewall of the receiving groove, the guide surface is an inclined surface or an arc surface, and the angle between the guide surface and the inner end face of the receiving groove is an obtuse angle.

[0015] Furthermore, the adhesive tape bonding device also includes an adhesive tape bending member, at least one side of which protrudes from the side of the first adhesive roller near the battery cell. The adhesive tape bending member is used to bend the portion of the adhesive tape protruding from the end face of the battery cell toward the end face of the battery cell.

[0016] Furthermore, the angle between the end face of the adhesive tape bending member near the first adhesive roller and the side of the first adhesive roller near the battery cell is a right angle or an obtuse angle.

[0017] Furthermore, the adhesive tape bending component is a roller, and the adhesive tape bending component and the first adhesive roller are coaxially arranged, with the diameter of the adhesive tape bending component being larger than the diameter of the first adhesive roller.

[0018] Furthermore, the adhesive tape bending component is a roller, the axis of the adhesive tape bending component is misaligned with the axis of the first adhesive roller, and the diameter of the adhesive tape bending component is less than or equal to the diameter of the first adhesive roller.

[0019] Furthermore, the adhesive tape conveying device includes an adhesive tape gripper and an adhesive tape conveyor. The adhesive tape gripper is movably mounted on the machine base, and the adhesive tape conveyor is mounted on the machine base. The adhesive tape conveyor is used to convey the adhesive tape to be attached to the battery cell to the adhesive tape gripper. The battery cell driving device is located between the adhesive tape gripper and the adhesive tape conveyor. The adhesive tape gripper is used to grip the end of the adhesive tape and to move in a direction closer to the adhesive tape conveyor and in a direction away from the adhesive tape conveyor.

[0020] Furthermore, the adhesive tape bonding device also includes a second adhesive tape roller, which is used to contact the outer side of the battery cell and bond the outer side of the battery cell to the adhesive tape. The height of the axis of the first adhesive tape roller on the machine platform is equal to the height of the axis of the second adhesive tape roller on the machine platform, and the height of the adhesive tape gripper and the height of the adhesive tape conveyor on the machine platform are both greater than the height of the axis of the first adhesive tape roller on the machine platform.

[0021] Furthermore, the cell driving device includes a first driving roller and a second driving roller. Both the first driving roller and the second driving roller are mounted on the machine base. The axis of the first driving roller and the axis of the second driving roller are at the same height on the machine base. The first driving roller and the second driving roller are used to drive the cell to rotate around the central axis of the cell.

[0022] The first adhesive roller, the second adhesive roller, the first drive roller, and the second drive roller are used to support the battery cell.

[0023] Furthermore, the first adhesive roller and the second adhesive roller are arranged side by side, and the first adhesive roller and the second adhesive roller are used to support the first end of the battery cell. The first drive roller and the second drive roller are arranged side by side, and the first drive roller and the second drive roller are used to support the second end of the battery cell.

[0024] In this application, by setting the length direction of the cutting component to be non-perpendicular to the length direction of the adhesive paper, the cutting component cuts the end of the adhesive paper into a tail with an obtuse angle to the side of the adhesive paper closest to the battery cell. This allows the tail of the adhesive paper with an acute angle to fit tightly against the outer side of the battery cell when the adhesive paper is wrapped around and attached to the outside of the battery cell, thus preventing the end of the adhesive paper from sticking up on the outer side of the battery cell and improving the yield rate of battery processing. Attached Figure Description

[0025] Figure 1 This is a front view of the battery adhesive applicator provided in an embodiment of this application;

[0026] Figure 2 yes Figure 1 A top view of the battery bonding equipment shown.

[0027] Figure 3 yes Figure 1 A bottom view of the adhesive tape conveying device, the battery cell driving device, the adhesive tape cutting device, and the adhesive tape bonding device in the battery adhesive application equipment shown.

[0028] Figure 4 This is a diagram showing the cut adhesive tape.

[0029] Figure 5 yes Figure 1 A cross-sectional view of the adhesive tape pressing device in the battery adhesive application equipment shown;

[0030] Figures 6 to 9 This is a schematic diagram illustrating the working principle of the adhesive tape bonding device provided in the embodiments of this application;

[0031] Figure 10 This is a schematic diagram of existing technology where adhesive tape is wrapped around and attached to the outside of the battery cell.

[0032] Figure 11 This is a schematic diagram of the adhesive tape wrapped around and attached to the outside of the battery cell.

[0033] Figure label:

[0034] 100. Machine tool;

[0035] 200. Adhesive tape conveying device; 210. Adhesive tape gripper; 220. Adhesive tape conveying component; 230. Slide rail;

[0036] 300. Battery cell drive device; 310. First drive roller; 320. Second drive roller;

[0037] 400. Adhesive tape cutting device; 410. Cutting part; 420. Lifting assembly;

[0038] 500. Adhesive tape application device; 510. First adhesive tape application roller; 520. Adhesive tape bending component; 530. Second adhesive tape application roller;

[0039] 600. Adhesive tape pressing device; 610. Adhesive tape pressing plate; 611. Receiving groove; 611a. Inner end face of the receiving groove; 611b. Inner side wall of the receiving groove; 611c. Guide surface;

[0040] 700. Adhesive tape; 701. End of adhesive tape; 702. Beginning of adhesive tape; 703. Side of adhesive tape closest to the battery cell; 704. Side of adhesive tape furthest from the battery cell;

[0041] 800, Battery cell; 801, End face of battery cell; 810, First end of battery cell; 820, Second end of battery cell. Detailed Implementation

[0042] Unless otherwise defined, the terms used in this specification and claims have the meanings commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this specification and claims is for the purpose of facilitating the description and understanding of this application only, and is not intended to limit this application to the narrow interpretation of the specific terms used in the specification and claims.

[0043] See Figures 1 to 3 This application provides a battery cell adhesive application device, which includes a machine base 100, an adhesive paper conveying device 200, a battery cell driving device 300, an adhesive paper cutting device 400, an adhesive paper bonding device 500, and an adhesive paper pressing device 600.

[0044] The adhesive tape conveying device 200 is mounted on the machine base 100 and is used to convey the adhesive tape 700 to be attached to the outer surface of the battery cell 800. The battery cell driving device 300 is mounted on the machine base 100 and is used to drive the battery cell to rotate around the central axis of the battery cell 800. The adhesive tape cutting device 400 is mounted on the machine base 100 and includes a cutting element 410. The length direction of the cutting element 410 is not perpendicular to the length direction of the adhesive tape 700. The cutting element 410 is used to cut the adhesive tape 700 and make the cut end 7 of the adhesive tape... The angle between 01 and the side 703 of the adhesive tape near the battery cell 800 is an acute angle. The adhesive tape bonding device 500 is installed on the machine base 100. The adhesive tape bonding device 500 includes a first adhesive roller 510, which is used to contact the outer side of the battery cell 800 and make the outer side of the battery cell 800 adhere to the adhesive tape 700. The adhesive tape pressing device 600 is installed on the machine base 100. The adhesive tape pressing device 600 is used to press the part of the adhesive tape 700 protruding from the end face 801 of the battery cell 800 onto the end face 801 of the battery cell 800.

[0045] It should be noted that, as Figure 4 As shown, after the adhesive tape 700 is cut by the cutter 410, the adhesive tape 700 includes a beginning end and an end end. The beginning end 702 of the adhesive tape refers to the end located at the front of the adhesive tape 700, which is the part that is initially attached to the outside of the battery cell 800. The end end 701 of the adhesive tape refers to the end located at the rear of the adhesive tape 700, which is the part that is finally attached to the outside of the battery cell 800. Specifically, after the adhesive tape 700 is cut by the cutter 410, the front part of the adhesive tape 700 is attached to the outside of the battery cell 800. As the battery cell 800 rotates, the area of ​​the adhesive tape 700 attached to the outer surface of the battery cell 800 gradually increases until the rear part of the adhesive tape 700 is attached to the outer surface of the battery cell 800, thus completing the attachment process between the adhesive tape 700 and the outer surface of the battery cell 800.

[0046] like Figure 3As shown, this application sets the length direction of the cutting piece 410 to be non-perpendicular to the length direction of the adhesive tape 700. This ensures that the angle between the end 701 of the adhesive tape after being cut by the cutting piece 410 and the side 703 of the adhesive tape near the battery cell 800 is acute, while the angle between the end 701 of the adhesive tape 700 and the side 704 of the adhesive tape 700 away from the battery cell 800 is obtuse. This results in the adhesive tape 700 becoming narrower towards its tail, ensuring that the last part of the adhesive tape 700 adheres to the outside of the battery cell 800 without lifting off the side of the battery cell 800 (e.g., ...). Figure 11 (As shown). The first adhesive roller 510 contacts the outer side of the battery cell 800 to which the adhesive tape 700 is applied, causing the adhesive tape 700 to adhere tightly to the outer side of the battery cell 800 under the pressure of the first adhesive roller 510. At the same time, it can also press the tail of the adhesive tape 700, improving the adhesion between the tail of the adhesive tape 700 and the battery cell 800. When using the battery cell 800 adhesive application equipment of this application to apply adhesive to the battery cell 800, the adhesive tape 700 will not curl outward after being applied to the outer side of the battery cell 800. This makes the shape change of the adhesive tape 700 more regular and easier to control during the pressing process of the adhesive tape pressing device 600 on the end face of the battery cell 800, improving the success rate of pressing and the yield of battery processing.

[0047] In this embodiment, the angle between the length direction of the cutting piece 410 and the axis of the first adhesive roller 510 ranges from 25° to 65°.

[0048] In this embodiment, the angle between the length direction of the cutting piece 410 and the axis of the first adhesive roller 510 is 25°, 30°, 45°, 50°, 55°, 60°, and 65°.

[0049] In this embodiment, the angle between the length direction of the cut piece 410 and the side 703 of the adhesive paper 700 near the battery cell 800 is between 25° and 65°.

[0050] like Figure 1 As shown, in this embodiment, the cutting element 410 is a blade or a heating wire.

[0051] In this embodiment, the adhesive tape cutting device 400 further includes a lifting assembly 420, which is installed on the machine base 100. The cutting piece 410 is connected to the lifting assembly 420, and the lifting assembly 420 is used to control the lifting of the cutting piece 410 so that the cutting piece 410 can cut the adhesive tape 700.

[0052] like Figure 1 , Figure 2 and Figure 5As shown, in this embodiment, the adhesive tape pressing device 600 includes an adhesive tape pressing plate 610. The adhesive tape pressing plate 610 is provided with a receiving groove 611. The receiving groove 611 is used to receive one end of the battery cell 800 with adhesive tape 700 attached. A guide surface 611c is provided between the inner end face of the receiving groove 611 and the inner sidewall of the receiving groove 611. The guide surface 611c is an inclined surface or an arc surface. The angle between the guide surface 611c and the inner end face of the receiving groove 611 is an obtuse angle.

[0053] Specifically, the battery cell 800 with adhesive tape 700 attached to its outer side is inserted into the receiving groove 611. The adhesive tape pressing plate 610 moves towards the end face 801 of the battery cell 800. The portion of the adhesive tape 700 protruding from the end face 801 of the battery cell 800 gradually bends towards the end face of the battery cell 800 along the guide surface 611c. This prevents the adhesive tape 700 from bending away from the end face 801 of the battery cell 800 under pressure, thus preventing the adhesive tape 700 from folding outward and causing defects and scrap in subsequent processing.

[0054] In this embodiment, the shape of the cross-section of the receiving groove 611 is adapted to the shape of the end face 801 of the battery cell 800. Specifically, the shape of the inner sidewall of the receiving groove 611 is adapted to the shape of the end face 801 of the battery cell 800.

[0055] In this embodiment, the width of the receiving groove 611 is equal to the diameter of the battery cell 800 after the adhesive tape 700 is attached, which reduces the space for the adhesive tape 700 to fold outward, so that the adhesive tape 700 can only be bent towards the end face 801 of the battery cell 800, thus increasing the success rate of the adhesive tape 700 being attached.

[0056] like Figure 1 , Figure 2 , Figures 6 to 9 As shown, in this embodiment, the adhesive tape bonding device 500 further includes an adhesive tape bending member 520. At least one side of the adhesive tape bending member 520 protrudes from the side of the first adhesive roller 510 near the battery cell 800. The adhesive tape bending member 520 is used to bend the portion of the adhesive tape 700 that protrudes from the end face 801 of the battery cell 800 toward the end face 801 of the battery cell 800.

[0057] Specifically, the outer surface of the first adhesive roller 510 is tangent to the outer surface of the battery cell 800. When the battery cell 800 rotates relative to the first adhesive roller 510, the first adhesive roller 510 contacts the annular area of ​​the outer surface of the battery cell 800 in sequence, thereby wrapping the adhesive tape 700, which does not protrude from the end face 801 of the battery cell 800, around the outside of the battery cell 800. One side of the adhesive tape bending member 520 protrudes from the side of the first adhesive roller 510 near the battery cell 800, and the adhesive tape bending member 520 can push the adhesive tape 700 protruding from the end face 801 of the battery cell 800 towards the direction closer to the end face 801 of the battery cell 800. After the battery cell 800 rotates once, the adhesive tape 700 that does not protrude from the end face 801 of the battery cell 800 adheres to the outside of the battery cell 800, while the adhesive tape 700 that protrudes from the end face 801 of the battery cell 800 bends towards the end face 801 of the battery cell 800, and the edge of the adhesive tape 700 shrinks towards the battery cell 800. Subsequently, the bent adhesive tape 700 is pressed to make the shape of the adhesive tape 700 easier to control and further improve the pressing effect.

[0058] In this embodiment, the angle between the end face of the adhesive tape bending member 520 near the first adhesive roller 510 and the side of the first adhesive roller 510 near the battery cell 800 is a right angle (e.g., Figures 6 to 8 (as shown) or obtuse angle (such as) Figure 9 (As shown).

[0059] In this embodiment, as Figure 6 or Figure 9 As shown, the tape bending component 520 is a roller, and the tape bending component 520 and the first adhesive roller 510 are coaxially arranged. The diameter of the tape bending component 520 is larger than the diameter of the first adhesive roller 510.

[0060] Or, such as Figure 7 or Figure 8 As shown, the axis of the adhesive tape bending component 520 is misaligned with the axis of the first adhesive roller 510, and the diameter of the adhesive tape bending component 520 is less than or equal to the diameter of the first adhesive roller 510.

[0061] Specifically, the adhesive tape bending component 520 adopts a roller structure, which can reduce the friction between the adhesive tapes in the adhesive tape bending component 520 and protect the adhesive tapes.

[0062] Specifically, both the first adhesive roller 510 and the adhesive paper bending component 520 are fixed pulleys. When the battery cell 800 rotates around its axis, the positions where the first adhesive roller 510 and the adhesive paper bending component 520 contact the adhesive paper 700 are subjected to frictional forces from the adhesive paper 700. Under the action of frictional forces, both the first adhesive roller 510 and the adhesive paper bending component rotate as the adhesive paper moves.

[0063] Alternatively, the first adhesive roller 510 can be a fixed pulley, and the adhesive paper bending component 520 can be a rectangular fixing component, a frustum fixing component, or a trapezoidal fixing component.

[0064] In this embodiment, the end face of the adhesive tape bending member 520 is attached to the end face of the first adhesive roller 510.

[0065] Alternatively, the adhesive tape bending component 520 is separated from the first adhesive roller 510.

[0066] like Figures 1 to 3 As shown, in this embodiment, the adhesive tape conveying device 200 includes an adhesive tape gripper 210 and an adhesive tape conveyor 220. The adhesive tape gripper 210 is movably mounted on the machine base 100, and the adhesive tape conveyor 220 is mounted on the machine base 100. The adhesive tape conveyor 220 is used to convey the adhesive tape 700 to be attached to the battery cell 800 to the adhesive tape gripper 210. The battery cell driving device 300 is located between the adhesive tape gripper 210 and the adhesive tape conveyor 220. The adhesive tape gripper 210 is used to grip the end 701 of the adhesive tape 700 and is used to move in a direction closer to the adhesive tape conveyor 220 and in a direction farther away from the adhesive tape conveyor 220.

[0067] like Figure 1 As shown, in this embodiment, the adhesive tape conveying device 200 further includes a slide rail 230, which is mounted on the machine base 100. The adhesive tape gripper 210 is mounted on the slide rail 230 and moves along the slide rail 230 in a direction close to the adhesive tape conveyor 220 and in a direction away from the adhesive tape conveyor 220.

[0068] The adhesive tape conveying device 200 also includes a first power member (not shown in the figure), which is mounted on the machine base 100. The adhesive tape gripper 210 is mounted at the end of the first power member. The first power member is used to drive the adhesive tape gripper 210 to move in a direction close to the adhesive tape conveyor 220 and in a direction away from the adhesive tape conveyor 220.

[0069] Specifically, the first power component includes a cylinder or a lead screw stepper motor.

[0070] Specifically, before applying the adhesive, the adhesive paper gripper 210 moves towards the adhesive paper conveyor 220. After the adhesive paper gripper 210 moves into position, it grips the end 701 of the adhesive paper and moves away from the adhesive paper conveyor 220. The adhesive paper 700 on the adhesive paper conveyor 220 is stretched. Then, the cutter 410 cuts the stretched adhesive paper 700. The beginning 702 of the cut adhesive paper 700 is attached to the outside of the battery cell 800. At this time, the battery cell 800 rotates under the drive of the battery cell drive device 300. While the battery cell 800 rotates, the adhesive paper gripper 210 returns towards the adhesive paper conveyor 220 under the action of the adhesive paper 700. The area of ​​the adhesive paper 700 attached to the outside of the battery cell 800 gradually increases until the adhesive paper 700 surrounds the battery cell 800. At this time, the application of adhesive to the battery cell 800 is completed.

[0071] like Figures 1 to 3 As shown, in this embodiment, the adhesive tape bonding device 500 further includes a second adhesive tape roller 530. The second adhesive tape roller 530 is used to contact the outer side of the battery cell 800 and bond the outer side of the battery cell 800 with the adhesive tape 700. The height of the axis of the first adhesive tape roller 510 on the machine base 100 is equal to the height of the axis of the second adhesive tape roller 530 on the machine base 100. The height of the adhesive tape gripper 210 on the machine base 100 and the height of the adhesive tape conveyor 220 on the machine base 100 are both greater than the height of the axis of the first adhesive tape roller 510 on the machine base 100.

[0072] Specifically, this application improves the adhesion between the battery cell 800 and the adhesive tape 700 by setting a first adhesive roller 510 and a second adhesive roller 530, allowing a position of the battery cell 800 to be pressed sequentially by the first adhesive roller 510 and the second adhesive roller 530. The heights of the axis of the first adhesive roller 510 and the axis of the second adhesive roller 530 on the machine base 100 are both less than the height of the adhesive tape gripper 210 on the machine base 100, and both are less than the height of the adhesive tape conveyor 220 on the machine base 100. During adhesive application, the first adhesive roller 510 and the second adhesive roller 530... The 0 is located below the battery cell 800, the adhesive tape gripper 210 and the adhesive tape conveyor 220 are located above the battery cell 800, the first adhesive roller 510 and the second adhesive roller 530 support the battery cell 800, and the battery cell 800 presses against the first adhesive roller 510 and the second adhesive roller 530 under its own weight, so that the first adhesive roller 510 and the second adhesive roller 530 generate a reaction force on the battery cell 800, and tightly adhere the adhesive tape 700 to the battery cell 800.

[0073] like Figures 1 to 3As shown, in this embodiment, the battery cell driving device 300 includes a first driving roller 310 and a second driving roller 320. Both the first driving roller 310 and the second driving roller 320 are mounted on the machine base 100. The axis of the first driving roller 310 and the axis of the second driving roller 320 are at the same height on the machine base 100. The first driving roller 310 and the second driving roller 320 are used to drive the battery cell 800 to rotate around the central axis of the battery cell 800. The first adhesive roller 510, the second adhesive roller 530, the first driving roller 310 and the second driving roller 320 are used to support the battery cell 800.

[0074] Specifically, the gap between the first drive roller 310 and the second drive roller 320 is smaller than the diameter of the battery cell 800 to be glued, and the gap between the first adhesive roller 510 and the second adhesive roller 530 is smaller than the diameter of the battery cell 800 to be glued, allowing the battery cell 800 to be glued to be placed on the first adhesive roller 510, the second adhesive roller 530, the first drive roller 310, and the second drive roller 320. The first adhesive roller 510, the second adhesive roller 530, the first drive roller 310, and the second drive roller 320 can support the battery cell 800. The battery cell 800 glue application equipment of this application does not require additional support components to support the battery cell 800, further simplifying the structure of the equipment and enhancing its overall integrity.

[0075] Specifically, the axis of the first drive roller 310 and the axis of the second drive roller 320 are at the same height on the machine base 100, so that the driving force received by the battery cell 800 is symmetrical about the central axis of the battery cell 800, ensuring the stability of the battery cell 800 during rotation.

[0076] In this embodiment, the first adhesive roller 510 and the second adhesive roller 530 are arranged side by side, and the first adhesive roller 510 and the second adhesive roller 530 are used to support the first end 810 of the battery cell 800. The first drive roller 310 and the second drive roller 320 are arranged side by side, and the first drive roller 310 and the second drive roller 320 are used to support the second end 820 of the battery cell 800.

[0077] Alternatively, the cell driving device 300 includes a first driving roller 310 and a supporting driven roller. The first driving roller 310 is used to fit against the side of the cell 800 to drive the cell 800 to rotate around the central axis of the cell 800. The first driving roller 310 and the supporting driven roller are used to support the second end 820 of the cell 800.

[0078] Based on the above-mentioned battery cell adhesive bonding equipment, this application also provides a battery cell adhesive bonding method, the method comprising:

[0079] Step S1: Install the battery cell to be glued onto the battery cell drive device;

[0080] Step S2: The adhesive tape conveying device conveys adhesive tape to the battery cell;

[0081] Step S3: The adhesive tape cutting device cuts the adhesive tape, wherein the angle between the end of the cut adhesive tape and the side of the adhesive tape closest to the battery cell is an acute angle.

[0082] Step S4: The adhesive tape bonding device applies adhesive tape to the outside of the battery cell;

[0083] Step S5: The adhesive tape pressing device presses the portion of the adhesive tape protruding from the end face of the battery cell onto the end face of the battery cell.

[0084] Specifically, in step S3, when the adhesive tape cutting device cuts the adhesive tape once, the beginning of the previous adhesive tape is formed, and the end of the next adhesive tape is formed at the same time.

[0085] Specifically, before step S1, the following steps are included when using a roll of adhesive tape for the first time:

[0086] The adhesive tape cutting device cuts the adhesive tape.

[0087] When using a roll of adhesive tape for the first time, the end of the tape needs to be cut using an adhesive tape cutting device to ensure that the angle between the end of the tape and the side of the tape closest to the battery cell is an acute angle.

[0088] The specific embodiments of this application have been described in detail above. The embodiments disclosed above are merely preferred embodiments of this application. Those skilled in the art can make many modifications and improvements without departing from the concept of this application. All such modifications and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A battery cell adhesive bonding device, characterized in that, The application relates to a machine table, a rubber paper conveying device, an electric core driving device, a rubber paper cutting device, a rubber paper adhering device and a rubber paper pressing device. The rubber paper conveying device is installed on the machine table and used for conveying rubber paper to be attached to the outer surface of an electric core. The electric core driving device is installed on the machine table and used for driving the electric core to rotate around the central axis of the electric core. The rubber paper cutting device is installed on the machine table and comprises a cutting piece, the length direction of the cutting piece is not perpendicular to the length direction of the rubber paper, and the cutting piece is used for cutting the rubber paper and making the end of the cut rubber paper form an acute angle with the side edge of the rubber paper close to the electric core. The rubber paper adhering device is installed on the machine table and comprises a first rubber paper adhering roller, which is used for contacting the outer side of the electric core and adhering the outer side of the electric core to the rubber paper. The rubber paper pressing device is installed on the machine table and used for pressing the part of the rubber paper protruding from the end surface of the electric core to the end surface of the electric core. The rubber paper pressing device comprises a rubber paper pressing plate, the rubber paper pressing plate is provided with a containing groove used for containing one end of the electric core to which the rubber paper is attached, a guide surface is arranged between the inner end surface of the containing groove and the inner side wall of the containing groove, the guide surface is an inclined surface or an arc surface, and the included angle between the guide surface and the inner end surface of the containing groove is obtuse.

2. The cell taping apparatus of claim 1, wherein, The rubber paper adhering device further comprises a rubber paper bending piece, at least one side of the rubber paper bending piece protrudes from the side of the first rubber paper adhering roller close to the electric core, and the rubber paper bending piece is used for bending the part of the rubber paper protruding from the end surface of the electric core to the direction close to the end surface of the electric core.

3. The cell taping apparatus of claim 2, wherein, The included angle between the end surface of the rubber paper bending piece close to the first rubber paper adhering roller and the side surface of the first rubber paper adhering roller close to the electric core is a right angle or an obtuse angle.

4. The cell taping apparatus of claim 3, wherein, The rubber paper bending piece is a roller, the rubber paper bending piece and the first rubber paper adhering roller are coaxially arranged, and the diameter of the rubber paper bending piece is greater than the diameter of the first rubber paper adhering roller.

5. The cell taping apparatus of claim 4, wherein, The rubber paper bending piece is a roller, the shaft center of the rubber paper bending piece is dislocated from the shaft center of the first rubber paper adhering roller, and the diameter of the rubber paper bending piece is less than or equal to the diameter of the first rubber paper adhering roller.

6. The cell taping apparatus of claim 4, wherein, The rubber paper conveying device comprises a rubber paper grabbing piece and a rubber paper conveying piece, the rubber paper grabbing piece is movably installed on the machine table, the rubber paper conveying piece is installed on the machine table and used for conveying the rubber paper to be attached to the electric core to the rubber paper grabbing piece, the electric core driving device is located between the rubber paper grabbing piece and the rubber paper conveying piece, the rubber paper grabbing piece is used for grabbing the end of the rubber paper, and the rubber paper grabbing piece is used for moving towards the direction close to the rubber paper conveying piece and the direction away from the rubber paper conveying piece.

7. The cell taping apparatus of any one of claims 1 to 6, wherein, ​ 8. The cell taping apparatus of claim 7, wherein, The adhesive tape fitting device further comprises a second adhesive tape fitting roller, which is used to contact the outer side of the battery cell and fit the outer side of the battery cell with the adhesive tape, the height of the axis of the first adhesive tape fitting roller on the machine table is equal to the height of the axis of the second adhesive tape fitting roller on the machine table, and the height of the adhesive tape grabbing member on the machine table and the height of the adhesive tape conveying member on the machine table are both greater than the height of the axis of the first adhesive tape fitting roller on the machine table.

9. The cell taping apparatus of claim 8, wherein, The battery cell driving device comprises a first driving roller and a second driving roller, both of which are installed on the machine table, the height of the axis of the first driving roller on the machine table is equal to the height of the axis of the second driving roller on the machine table, and the first driving roller and the second driving roller are used to drive the battery cell to rotate around the central axis of the battery cell. The first adhesive tape fitting roller, the second adhesive tape fitting roller, the first driving roller and the second driving roller are used to support the battery cell.

10. The cell taping apparatus of claim 9, wherein, The first adhesive tape fitting roller and the second adhesive tape fitting roller are arranged side by side and are used to support the first end of the battery cell, and the first driving roller and the second driving roller are arranged side by side and are used to support the second end of the battery cell.

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