Battery cell gluing device

Abstract

The application discloses a kind of battery cell glue pressing devices, the battery cell glue pressing device includes machine table;Battery cell fixing device, install on the machine table, battery cell fixing device is used to fix the position of battery cell;Connecting support, installed on machine table;At least two pieces of adhesive paper cutting;At least two adhesive paper bending pieces, adhesive paper bending piece is movably connected with connecting support, adhesive paper bending piece is used to move in the direction of approaching each other, and the part of adhesive paper protruding from the end surface of battery cell is bent in the direction of approaching the end surface of battery cell, adhesive paper bending piece is provided with push adhesive face, at least one adhesive paper cutting is provided on each push adhesive face;Adhesive paper pressing assembly, adhesive paper bending piece is arranged in the form of circumferential array around adhesive paper pressing assembly, adhesive paper pressing assembly is used to move in the direction of approaching the first end of battery cell, and bent adhesive paper is attached to the end surface of battery cell.This application can make adhesive paper attached to the end surface of battery cell without turning outwards.

Description

Technical Field

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

[0002] With the development of manufacturing capabilities in the new energy industry, the application of batteries is becoming increasingly widespread. In existing batteries, insulation is generally achieved between the cell and the casing and cover by using insulating stickers. In conventional battery adhesive application methods, adhesive tape is wrapped around the outer side of the cell, with a portion of the tape protruding from the end face of the cell. Then, a pressing device is used to press the protruding portion of the tape against the end face of the cell, making the tape adhere to the end face of the cell.

[0003] However, existing adhesive bonding equipment cannot control the shape of the adhesive tape during the bonding process, which makes it easy for the adhesive tape to fold outwards and fail to adhere to the end face of the battery cell. The outward folding of the adhesive tape leads to subsequent processing failures and a low yield rate in battery processing.

[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 pressing device to solve the problem that existing pressing devices cannot control the shape of the adhesive paper.

[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 bonding device, comprising:

[0008] Machine tool;

[0009] A battery cell fixing device is installed on the machine base. The battery cell fixing device is used to connect to the second end of the battery cell, which has adhesive paper attached to the outer side of the first end, and to fix the position of the battery cell.

[0010] A connecting bracket is installed on the machine base;

[0011] At least two tape cutters, the tape cutters being used to cut the tape;

[0012] At least two adhesive tape bending components are provided, which are movably connected to the connecting bracket. The adhesive tape bending components are used to move toward each other and bend the portion of the adhesive tape protruding from the end face of the battery cell toward the end face of the battery cell. The adhesive tape bending components are provided with a pushing surface for contacting the adhesive tape. At least one adhesive tape cutting component is provided on each pushing surface.

[0013] An adhesive tape pressing assembly is mounted on the connecting bracket. The adhesive tape bending parts are arranged in a circumferential array around the adhesive tape pressing assembly. The adhesive tape pressing assembly is used to move towards the first end of the battery cell and to adhere the bent adhesive tape to the end face of the battery cell.

[0014] Furthermore, the adhesive tape pressing assembly includes a first driving member and an adhesive tape pressing column. The first driving member is connected to the adhesive tape pressing column and is used to drive the adhesive tape pressing column to move in a direction close to the end face of the battery cell and in a direction away from the end face of the battery cell. The adhesive tape bending members are arranged in a circumferential array around the adhesive tape pressing column. The end of the adhesive tape pressing column close to the battery cell is provided with an adhesive tape pressing surface. When the adhesive tape pressing column is in a moving state, the adhesive tape pressing surface protrudes from the side of the adhesive tape bending member away from the connecting bracket or is recessed into the side of the adhesive tape bending member away from the connecting bracket.

[0015] Furthermore, the adhesive tape bending component is used to move towards the adhesive tape pressing post until it is in a retracted state. When the adhesive tape bending component is in the retracted state, the side of the adhesive tape bending component near the adhesive tape pressing post is in contact with the side of the adhesive tape pressing post.

[0016] Furthermore, when the adhesive tape bending component is in the retracted state, two adjacent adhesive tape bending components are pressed together, and the side of the adhesive tape bending component near the adhesive tape pressing post is pressed together and connected to the side of the adhesive tape pressing post.

[0017] Furthermore, the adhesive tape bending member is used to move away from the adhesive tape pressing post until it is in an open state. When the adhesive tape bending member is in the open state, two adjacent adhesive tape bending members are separated from each other, and the side of the adhesive tape bending member closest to the adhesive tape pressing post is separated from the adhesive tape pressing post.

[0018] Furthermore, the adhesive pushing surface is an inclined surface or an arc-shaped surface, the angle between the adhesive pushing surface and the moving direction of the adhesive paper pressing column is greater than or equal to 10° and less than 90°, and the moving direction of the adhesive paper pressing column is parallel to the length direction of the battery cell.

[0019] Furthermore, the adhesive tape cutter and the adhesive tape bending member are movably connected, and the adhesive tape cutter is used to extend and retract from the adhesive pushing surface.

[0020] Furthermore, the two adhesive tape bending pieces are arranged opposite each other on both sides of the adhesive tape pressing column, and the adhesive tape cutting pieces located on the two adhesive tape bending pieces are symmetrical about the axis of the adhesive tape pressing column.

[0021] Furthermore, the four adhesive tape bending components are arranged in a circumferential array around the outer periphery of the adhesive tape pressing assembly, the four adhesive tape bending components are equally spaced, and each of the four adhesive tape bending components is provided with an adhesive tape cutting component, the four adhesive tape cutting components are equally spaced.

[0022] Furthermore, the battery cell fixing device includes a lifting component and a positioning component, both of which are mounted on the machine platform. The lifting component is used to lift the battery cell, and the positioning component is used to cooperate with the lifting component to fix the position of the battery cell.

[0023] In this application, by setting up an adhesive tape bending component, an adhesive tape cutting component, and an adhesive tape pressing component, an adhesive tape cutting component is provided on the adhesive pushing surface. The adhesive tape cutting component cuts the adhesive tape before the adhesive pushing surface contacts the adhesive tape. The cut adhesive tape is bent towards the end face of the battery cell under the action of the adhesive tape bending component. The adhesive tape pressing component continues to push the bent adhesive tape towards the end face of the battery cell, so that the adhesive tape adheres to the end face of the battery cell. During the process of the adhesive tape adhering to the end face of the battery cell, the adhesive side of the adhesive tape cut by the adhesive tape cutting component adheres to the adjacent adhesive tape. The cut edge of the adhesive tape tightly overlaps the end face of the battery cell. The adhesive tape adheres to the end face of the battery cell without flipping outward, and it is not easy to form sharp corners or lift up. This achieves a smoother and more even adhesion between the adhesive tape and the end face of the battery cell, resulting in a high yield rate of adhesive tape, better insulation, and reduced scrap costs. Attached Figure Description

[0024] Figure 1 This is a schematic side view of the battery cell bonding device provided in an embodiment of this application;

[0025] Figures 2 to 5 yes Figure 1 A schematic diagram illustrating the working principle of the adhesive tape bending component, adhesive tape cutting component, and adhesive tape pressing component in the battery cell adhesive bonding device shown;

[0026] Figures 6 to 8 yes Figure 1 A schematic diagram of the main view structure of the adhesive tape bending component, adhesive tape cutting component, and adhesive tape pressing component of the battery cell pressing device shown;

[0027] Figure 9 It is by Figure 1 The diagram shows the end face of the battery cell after it has been glued using the battery cell glue-pressing device.

[0028] Figure label:

[0029] 100. Machine tool;

[0030] 200. Battery cell fixing device; 210. Lifting assembly; 220. Positioning assembly; 221. Lifting component; 222. Upper pressure block;

[0031] 300. Connecting bracket;

[0032] 400. Cut adhesive tape;

[0033] 500. Adhesive tape bending parts; 501. Adhesive push surface;

[0034] 600, Adhesive tape pressing assembly; 610, First driving component; 620, Adhesive tape pressing column; 621, Adhesive tape pressing surface;

[0035] 700, Battery cell; 701, First end; 702, Second end;

[0036] 800, Adhesive tape; 801, First side of the cut; 802, Second side of the cut. Detailed Implementation

[0037] 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.

[0038] See Figures 1 to 8 This application provides a battery cell pressing device, which includes a machine base 100, a battery cell fixing device 200, a connecting bracket 300, at least two adhesive tape cutting pieces 400, at least two adhesive tape bending pieces 500, and an adhesive tape pressing assembly 600. The battery cell fixing device 200 is mounted on the machine base 100 and is used to connect to and fix the position of the battery cell 700, which has adhesive tape 800 attached to its outer surface. The connecting bracket 300 is mounted on the machine base 100. The adhesive tape cutting pieces 400 are used to cut the adhesive tape. The adhesive tape bending pieces 500 are movably connected to the connecting bracket 300 and are used to bend the adhesive tape. The component 500 is used to move towards each other and bend the portion of the adhesive tape protruding from the end face of the battery cell 700 towards the end face of the battery cell 700. The adhesive tape bending component 500 is provided with an adhesive pushing surface 501, which is used to contact the adhesive tape. Each adhesive pushing surface 501 is provided with at least one adhesive tape cutting component 400. The adhesive tape pressing assembly 600 is mounted on the connecting bracket 300. The adhesive tape bending components 500 are arranged in a circumferential array around the adhesive tape pressing assembly 600. The adhesive tape pressing assembly 600 is used to move towards the second end 702 of the battery cell 700 and to adhere the bent adhesive tape to the end face of the battery cell 700.

[0039] Specifically, the bonding process of the battery cell bonding device provided in this application is as follows:

[0040] The battery cell fixing device 200 fixes the position of the battery cell 700 by connecting the second end 702 of the battery cell 700, to the outer side of the first end 701, to which adhesive tape 800 is attached. The portion of the adhesive tape protruding from the end face of the first end of the battery cell 700 is located between the adhesive tape bending members 500 (e.g., ...). Figure 2 (As shown). Since the adhesive tape cutter 400 is disposed on the adhesive pushing surface 501 of the adhesive tape bending member 500, during the process of the adhesive tape bending member 500 moving towards each other, the adhesive tape cutter 400 contacts the adhesive tape before the adhesive pushing surface 501, and the adhesive tape cutter 400 cuts the adhesive tape at the corresponding position (e.g., Figure 3 As shown). The adhesive tape bending component 500 continues to move in a direction closer to each other, the adhesive pushing surface 501 of the adhesive tape bending component 500 contacts the adhesive tape, and pushes the adhesive tape to bend towards the end face closer to the battery cell 700 (as shown). Figure 4 (As shown). The adhesive tape pressing assembly 600 moves toward the first end 701 of the battery cell 700, pressing the bent adhesive tape toward the end face of the battery cell 700 (as shown). Figure 5 As shown), the adhesive side of the tape 800 is attached to the end face of the battery cell, and the adhesive side of the cut tape 800 is attached to the outer surface of the adjacent tape 800 (e.g., Figure 9 As shown in the figure, this avoids the adhesive tape sticking up on the end face of the battery cell 700 and also prevents the adhesive tape from forming sharp corners on the end face of the battery cell 700. After the part of the adhesive tape protruding from the end face of the battery cell 700 is bent, under the push of the adhesive tape bending component 500, the edge of the adhesive tape 800 gathers towards the center of the end face of the battery cell 700, so that the shape of the outer edge of the adhesive tape 800 is effectively controlled, and the problem of the adhesive tape 800 turning outward is effectively avoided.

[0041] The battery cell bonding device provided in this application includes a paper bending component 500, a paper cutting component 400, and a paper pressing component 600. The paper cutting component 400 is provided on the pushing surface 501. The paper cutting component 400 cuts the paper before the pushing surface 501 contacts the paper. The cut paper is then bent towards the end face of the battery cell 700 by the paper bending component 500. The paper pressing component 600 continues to push the bent paper towards the end face of the battery cell 700, causing the paper to adhere to the end face of the battery cell 700. During the end-face bonding process, the adhesive side of the adhesive tape 800, cut by the adhesive tape cutter 400, is bonded to the adjacent adhesive tape. The cut edges of the adhesive tape 800 are tightly overlapped on the end face of the battery cell 700. The adhesive tape bonded to the end face of the battery cell 700 will not flip outwards, nor will it easily form sharp corners or lift up. This results in a smoother and more even bonding between the adhesive tape and the end face of the battery cell 700, a high yield rate of adhesive bonding, better insulation, and reduced scrap costs. The flat and consistent bonding between the adhesive tape and the end face of the battery cell 700 facilitates the smooth progress of subsequent processing steps.

[0042] Specifically, each adhesive push surface 501 is provided with at least one adhesive paper cutter 400.

[0043] like Figures 1 to 5 As shown, in this embodiment, the adhesive tape pressing assembly 600 includes a first driving member 610 and an adhesive tape pressing column 620. The first driving member 610 is connected to the adhesive tape pressing column 620 and is used to drive the adhesive tape pressing column 620 to move towards the end face of the battery cell. The adhesive tape bending members 500 are arranged in a circumferential array around the adhesive tape pressing column 620. The adhesive tape pressing column 620 is provided with an adhesive tape pressing surface 621 at one end near the battery cell 700. When the adhesive tape pressing column 620 is in a moving state, the adhesive tape pressing surface 621 protrudes from the side of the adhesive tape bending member 500 away from the connecting bracket 300 or is recessed in the side of the adhesive tape bending member 500 away from the connecting bracket 300.

[0044] Among them, the side of the adhesive tape bending component 500 away from the connecting bracket 300 is the side of the adhesive tape bending component 500 close to the battery cell 700 to be pressed.

[0045] In this embodiment, when the adhesive tape bending member 500 moves toward each other, the adhesive tape pressing column 620 remains stationary, and the adhesive tape pressing surface 621 is recessed in the side of the adhesive tape bending member 500 away from the connecting bracket 300. The adhesive tape bending member 500 pushes the portion of the adhesive tape protruding from the end face of the battery cell 700 to bend toward the end face of the battery cell 700. After the adhesive tape bending member 500 moves a predetermined distance toward each other, the first driving member 610 drives the adhesive tape pressing column 620 to move toward the end face of the battery cell 700 to be pressed, and the adhesive tape pressing surface 621 moves from the side of the adhesive tape bending member 500 away from the connecting bracket 300. The position of the adhesive tape is moved to a position protruding from the side of the adhesive tape bending member 500 away from the connecting bracket 300, pressing the bent adhesive tape against the end face of the battery cell 700, so that the adhesive tape adheres to the end face of the battery cell 700. After the adhesive tape adheres to the end face of the battery cell 700, the first driving member 610 drives the adhesive tape pressing column 620 to move away from the end face of the battery cell 700 to be pressed. The adhesive tape pressing surface 621 moves from a position protruding from the side of the adhesive tape bending member 500 away from the connecting bracket 300 to a position recessed in the side of the adhesive tape bending member 500 away from the connecting bracket 300, waiting to press the next battery cell to be pressed.

[0046] Specifically, when the adhesive tape pressing surface 621 is recessed in the side of the adhesive tape bending member 500 away from the connecting bracket 300, the adhesive tape pressing column 620 is in the state of waiting to press the adhesive; when the adhesive tape pressing surface 621 protrudes from the side of the adhesive tape bending member 500 away from the connecting bracket 300, the adhesive tape pressing column 620 is in the state of pressing the adhesive.

[0047] When the adhesive tape pressing surface 621 is recessed in the side of the adhesive tape bending member 500 away from the connecting bracket 300, a groove is formed between the adhesive tape pressing surface 621 and the side of the adhesive tape bending member 500 away from the connecting bracket 300. The adhesive tape is bent and enters the groove under the pushing action of the adhesive tape bending member 500, ensuring that when the adhesive tape pressing column 620 moves towards the end face of the battery cell 700, the adhesive tape in the groove is pressed onto the end face of the battery cell 700.

[0048] In this embodiment, the adhesive tape bonding surface 621 is a smooth plane.

[0049] Specifically, the end face of the battery cell 700 is round, elliptical, or racetrack-shaped, and the shape of the adhesive paper bonding surface 621 is round, elliptical, or racetrack-shaped.

[0050] In this embodiment, the shape of the adhesive tape pressing surface 621 can match the shape of the end face of the battery cell 700, and the adhesive tape pressing post 620 presses the adhesive tape and the battery cell together, so that the adhesive tape and the end face of the battery cell 700 are fully adhered.

[0051] In this embodiment, the diameter of the adhesive tape bonding surface 621 is less than or equal to the diameter of the end face of the battery cell 700.

[0052] In this embodiment, the adhesive tape cutter 400 is a blade or an electric heating element.

[0053] In this embodiment, the adhesive tape is high-temperature resistant adhesive tape and / or flexible adhesive tape.

[0054] In this embodiment, the adhesive tape bending component 500 is used to move towards the adhesive tape pressing post 620 until it is in a retracted state. When the adhesive tape bending component 500 is in the retracted state, as... Figure 8 As shown, the side of the adhesive tape bending component 500 near the adhesive tape pressing post 620 is attached to the side of the adhesive tape pressing post 620.

[0055] When the adhesive tape bending component 500 is in the retracted state, the adhesive tape bending component 500 and the adhesive tape pressing column 620 are in contact, so that the adhesive tape is continuously bent under the push of the adhesive tape bending component 500 until all the adhesive tape protruding from the end face of the battery cell 700 enters the groove formed by the adhesive tape pressing column 620 and the adhesive tape bending component 500, so that the adhesive tape pressing column 620 can press the adhesive, making the connection between the shape control of the adhesive tape 800 by the adhesive tape bending component 500 and the shape control of the adhesive tape 800 by the adhesive tape pressing component more tight.

[0056] In this embodiment, as Figure 8 As shown, when the adhesive tape bending component 500 is in the retracted state, two adjacent adhesive tape bending components 500 are attached to each other, and the side of the adhesive tape bending component 500 near the adhesive tape pressing column 620 is attached to and connected to the side of the adhesive tape pressing column 620.

[0057] In this embodiment, when the adhesive tape bending member 500 is in the retracted state, the two adjacent adhesive tape bending members 500 can stick together to avoid the adhesive tape in the gap between the two adjacent adhesive tape bending members 500 not bending towards the end face of the battery cell 700, which would cause the adhesive tape to form a sharp corner protruding from the end face of the battery cell 700 after being pressed together.

[0058] Alternatively, when the adhesive tape bending component 500 is in the retracted state, adjacent adhesive tape bending components 500 are separated from each other. For adhesive tapes with high rigidity, when the adhesive tape bending component 500 is in the retracted state, there is a small gap between adjacent adhesive tape bending components 500, which will not affect the pressing effect of the adhesive tape 800.

[0059] In this embodiment, the adhesive tape bending member 500 is used to move away from the adhesive tape pressing post 620 until it is in an open state. When the adhesive tape bending member 500 is in the open state, such as Figure 6 and Figure 7 As shown, two adjacent adhesive tape bending parts 500 are separated from each other, and the side of the adhesive tape bending part 500 near the adhesive tape pressing post 620 is separated from the adhesive tape pressing post 620.

[0060] Specifically, after the adhesive tape bending component 500 completes the pressing of one battery cell 700, it moves away from the adhesive tape pressing post 620 to return to its initial state, which is the open state. When the adhesive tape bending component 500 is in the open state, the distance between the corresponding edges of the two opposing adhesive tape bending components 500 near the adhesive tape pressing post 620 is greater than the diameter of the battery cell 700, so that the adhesive tape protruding from the end face of the battery cell 700 can be fully inserted between the two opposing adhesive tape bending components 500.

[0061] In this embodiment, the adhesive pushing surface 501 is an inclined surface or an arc-shaped surface, and the angle between the adhesive pushing surface 501 and the moving direction of the adhesive paper pressing column 620 is greater than or equal to 10° and less than 90°. The moving direction of the adhesive paper pressing column 620 is parallel to the length direction of the battery cell 700.

[0062] Specifically, the moving direction of the adhesive tape pressing column 620 is parallel to the axis of the battery cell 700. The angle between the adhesive pushing surface 501 and the axis of the battery cell 700 is greater than or equal to 10° and less than 90°. When the adhesive pushing component moves in a direction closer to each other, the adhesive tape bends along the adhesive pushing surface 501. The adhesive pushing surface 501 is a sloping or arc-shaped surface, which makes the bending of the adhesive tape 800 more gradual and reduces the resistance of the adhesive tape to the adhesive pushing surface 501.

[0063] In this embodiment, the cutting end of the adhesive tape cutter 400 does not exceed the outer edge of the adhesive pushing surface 501. After the adhesive tape cutter 400 cuts the adhesive tape, there is a certain gap between the cut of the adhesive tape 800 and the end face of the battery cell 700, so as to avoid the cut of the adhesive tape 800 extending to the end face of the battery cell 700 and affecting the insulation effect of the end face of the battery cell 700.

[0064] Alternatively, the angle between the direction of movement of the adhesive pushing surface 501 and the adhesive paper pressing column 620 is 90°.

[0065] In this embodiment, the battery cell pressing device further includes a second driving member (not shown in the figure). The second driving member is connected to the adhesive paper bending device and is used to drive the adhesive paper bending member 500 to move in a direction closer to each other and to drive the adhesive paper bending member 500 to move in a direction further away from each other.

[0066] In this embodiment, the adhesive tape cutter 400 and the adhesive tape bending member 500 are movably connected, and the adhesive tape cutter 400 is used to extend and retract onto the adhesive push surface 501.

[0067] When the adhesive tape bending component 500 moves toward each other and the adhesive tape cutting component 400 is in the extended state, the adhesive tape cutting component 400 is used to cut the portion of the adhesive tape protruding from the end face of the battery cell 700. After cutting the adhesive tape, the adhesive tape bending component 500 continues to move toward each other, and the adhesive tape cutting component 400 retracts until it retracts to the adhesive pushing surface 501. While the adhesive tape pressing column 620 moves toward the end face of the battery cell 700, the adhesive tape cutting component 400 is completely retracted into the interior of the adhesive tape bending component 500 to avoid contact and interference with the adhesive tape pressing column 620, and to prevent the adhesive tape cutting component 400 from scratching the end face of the battery cell 700 and the adhesive tape pressing column 620.

[0068] In this embodiment, as Figure 7 As shown, two adhesive tape bending parts 500 are arranged opposite each other on both sides of the adhesive tape pressing column 620, and the adhesive tape cutting parts 400 located on the two adhesive tape bending parts 500 are symmetrical about the axis of the adhesive tape pressing column 620.

[0069] Or, such as Figure 6 As shown, four adhesive tape bending components 500 are arranged in a circular array around the outer periphery of the adhesive tape pressing assembly 600. The four adhesive tape bending components 500 are evenly spaced, and each of the four adhesive tape bending components 500 is provided with an adhesive tape cutting component 400. The four adhesive tape cutting components 400 are evenly spaced.

[0070] Specifically, the adhesive tape bending component 500 is symmetrical about the central axis of the adhesive tape pressing column 620, which improves the flatness and symmetry of the end face of the adhesive tape attached to the battery cell 700 and optimizes the bonding effect of the adhesive tape 800.

[0071] Four tape cutters are evenly spaced at 400mm intervals, creating slits in the tape at these equal intervals. The tape is then cut open on both sides of each slit, and the tape is pressed together, as shown in the image. Figure 9 As shown, the adhesive tape on the first side 801 of the cut is attached to the end face of the battery cell 700, and the adhesive tape on the second side 802 of the cut is attached to the adhesive tape attached to the end face of the battery cell 700. Therefore, the adhesive tape on both sides of the cut overlaps, thereby adapting to the end face of the battery cell 700 with different shapes. During the pressing process, the adhesive surfaces of the adhesive tape 800 will not stick together to produce sharp corners and lift up.

[0072] In this embodiment, the adhesive tape bending component 500 is made of ceramic or metal material.

[0073] like Figure 1 As shown, in this embodiment, the battery cell fixing device 200 includes a lifting component 210 and a positioning component 220. Both the lifting component 210 and the positioning component 220 are mounted on the machine base 100. The lifting component 210 is used to lift the battery cell, and the positioning component 220 is used to cooperate with the lifting component 210 to fix the position of the battery cell 700.

[0074] In this embodiment, the lifting assembly 210 includes a first support rod and a second support rod, which are arranged side by side. The side of the first support rod is externally tangent to the side of the battery cell 700, and the side of the second support rod is also externally tangent to the side of the battery cell 700. The first and second support rods are used to lift the battery cell and restrict its radial movement. The outer sides of the first and second support rods abut against each other, or the first and second support rods are spaced apart, with the gap between them being smaller than the diameter of the battery cell 700.

[0075] Both the first and second support rods are cylinders, and their axes are parallel to the axis of the battery cell 700.

[0076] The positioning component 220 includes a lifting member 221 and an upper pressure block 222. The lifting member 221 is connected to the upper pressure block 222. The lifting member 221 is used to drive the upper pressure block 222 to move up and down. The upper pressure block 222 is located above the first support rod and the second support rod. The upper pressure block 222 is used to cooperate with the first support rod and the second support rod to limit the axial movement of the battery cell 700.

[0077] Before the adhesive is applied, the first support rod and the second support rod convey the battery cell with the adhesive paper 800 attached to its outer side to the adhesive application station. The lifting component 221 drives the upper pressure block 222 to descend. After the upper pressure block 222 descends, it cooperates with the first support rod and the second support rod to press the battery cell tightly, thereby limiting the axial and radial movement of the battery cell 700 and fixing the position of the battery cell 700 before proceeding with the subsequent adhesive application operation.

[0078] Based on the battery cell bonding apparatus provided in this application, this application also provides a battery cell bonding method, the method comprising:

[0079] Step S1: The cell fixing device is connected to the second end face of the cell and fixes the position of the cell, wherein the outer side of the first end of the cell is covered with adhesive tape.

[0080] Step S2: The tape-bent parts move in a direction that brings them closer together;

[0081] Step S3: Cut the adhesive tape with the adhesive tape cutter, wherein the adhesive tape cutter is located on the adhesive pushing surface of the adhesive tape bending piece;

[0082] Step S4: The adhesive tape pressing assembly moves toward the first end of the battery cell to bond the bent adhesive tape to the end face of the battery cell.

[0083] In this embodiment, before step S4, the method further includes:

[0084] The cut adhesive tape retracts to the adhesive surface.

[0085] 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. An electrode cell pressing device, characterized by, The utility model relates to a kind of battery paper folding device, including: Machine table; Battery cell fixing device, install on the machine table, the battery cell fixing device is used to connect with the second end of the battery cell of the outer side of the first end with adhesive paper attached and fix the position of the battery cell; Connecting support, installed on the machine table; At least two adhesive paper cutting pieces, the adhesive paper cutting piece is used to cut the adhesive paper; At least two adhesive paper folding pieces, the adhesive paper folding piece is movably connected with the connecting support, the adhesive paper folding piece is used to move in the direction of approaching each other, and the part of the adhesive paper protruding from the end surface of the battery cell is bent in the direction of approaching the end surface of the battery cell, the adhesive paper folding piece is equipped with adhesive pushing surface, the adhesive pushing surface is used to contact with the adhesive paper, at least one adhesive paper cutting piece is provided on each adhesive pushing surface; Adhesive paper pressing assembly, installed on the connecting support, the adhesive paper folding piece is arranged in the form of circumferential array around the adhesive paper pressing assembly, the adhesive paper pressing assembly is used to move in the direction of approaching the first end of the battery cell, and the bent adhesive paper is attached with the end surface of the battery cell.

2. The cell pressing device of claim 1, wherein, The adhesive paper pressing assembly includes a first drive member and an adhesive paper pressing column, the first drive member is connected with the adhesive paper pressing column, the first drive member is used to drive the adhesive paper pressing column to move in the direction of approaching the end surface of the battery cell and the direction of moving away from the end surface of the battery cell, the adhesive paper folding piece is arranged in the form of circumferential array around the outer periphery of the adhesive paper pressing column, one end of the adhesive paper pressing column close to the battery cell is provided with an adhesive pressing surface, when the adhesive paper pressing column is in a moving state, the adhesive pressing surface protrudes from or is recessed in the side of the adhesive paper folding piece away from the connecting support.

3. The cell pressing device of claim 2, wherein, The adhesive paper folding piece is used to move in the direction of approaching the adhesive paper pressing column until it is in a closed state, when the adhesive paper folding piece is in the closed state, the side of the adhesive paper folding piece close to the adhesive paper pressing column is attached with the side of the adhesive paper pressing column.

4. The cell pressing device of claim 3, wherein, When the adhesive paper folding piece is in the closed state, two adjacent adhesive paper folding pieces are attached with each other, the side of the adhesive paper folding piece close to the adhesive paper pressing column is respectively attached with the side of the adhesive paper pressing column and connected with each other.

5. The cell pressing apparatus of claim 4, wherein The adhesive paper folding piece is used to move in the direction of moving away from the adhesive paper pressing column until it is in an open state, when the adhesive paper folding piece is in the open state, two adjacent adhesive paper folding pieces are separated from each other, and the side of the adhesive paper folding piece close to the adhesive paper pressing column is separated from the adhesive paper pressing column.

6. The cell pressing device according to any one of claims 2 to 5, wherein The adhesive pushing surface is an inclined surface or an arc surface, the included angle between the adhesive pushing surface and the moving direction of the adhesive paper pressing column is greater than or equal to 10° and less than 90°, and the moving direction of the adhesive paper pressing column is parallel to the length direction of the battery cell.

7. The cell pressing device according to any one of claims 2 to 5, wherein The adhesive paper cutting piece is movably connected with the adhesive paper folding piece, and the adhesive paper cutting piece is used to extend and retract on the adhesive pushing surface.

8. The cell pressing device according to any one of claims 2 to 5, wherein Two adhesive paper folding pieces are oppositely arranged on both sides of the adhesive paper pressing column, and the adhesive paper cutting pieces on the two adhesive paper folding pieces are symmetric about the axis of the adhesive paper pressing column.

9. The cell pressing device according to any one of claims 2 to 5, wherein Four said adhesive paper bending pieces are arranged in a circumferential array at the outer periphery of the adhesive paper pressing assembly, four said adhesive paper bending pieces are distributed at equal intervals, and four said adhesive paper cutting pieces are respectively arranged on the four said adhesive paper bending pieces, and the four said adhesive paper cutting pieces are distributed at equal intervals.

10. The cell pressing device according to any one of claims 1 to 5, wherein The electric core fixing device comprises a lifting assembly and a positioning assembly, the lifting assembly and the positioning assembly are both mounted on the machine table, the lifting assembly is used for lifting the electric core, and the positioning assembly is used for cooperating with the lifting assembly to fix the position of the electric core.

Images