Adhesive tape pasting device and adhesive tape pasting method

Abstract

Provided is an adhesive tape pasting device. The adhesive tape pasting apparatus may include: a cell assembly supply portion accommodating an electrode assembly including a plurality of cells; and the adhesive tape supply part is used for adhering an adhesive tape for connecting the plurality of battery cells to the battery cell assembly. The tape supply portion may include: an adsorption pad configured to be adhered to a central region of the tape; and the sticking roller is used for tightly sticking the adhesive tape to the battery cell assembly. The pasting roller can be configured to execute: a first operation of moving from the central region of the adhesive tape to an end region of the adhesive tape before the adhesive tape is in contact with the cell assembly; a second operation of bringing the end region into contact with the battery cell assembly; and a third operation of clinging the tape from the end region to the bending region of the tape.

Description

Technical Field

[0001] The present disclosure relates to a tape pasting device and a tape pasting method. More specifically, the present disclosure relates to a tape pasting device for a battery cell assembly and a tape pasting method for a battery cell assembly. Background Art

[0002] Unlike primary batteries, secondary batteries can be charged and discharged, making them suitable for a wide range of applications, including digital cameras, mobile phones, laptop computers, hybrid vehicles, electric vehicles, and energy storage systems (ESS). These batteries can be lithium-ion, nickel-cadmium, nickel-metal hydride, or nickel-metal hydride.

[0003] Secondary batteries are made from flexible pouch-type cells or rigid prismatic or cylindrical can-type cells. Multiple cells can be stacked together into a cell assembly. The cell assembly can be placed inside a module housing to form a battery module, and multiple battery modules can be placed inside a battery pack housing to form a battery pack. Summary of the Invention

[0004] Technical issues

[0005] A battery assembly consists of multiple cells. These cells can be connected using adhesive tape. However, manually connecting the cells can reduce work speed and quality reliability.

[0006] Additionally, when the tape is applied to the battery cell assembly by a tape applying device, the force transmitted to the battery cell during the tape applying process may cause damage to the battery cell assembly.

[0007] The present invention aims to provide a tape applying device and a tape applying method capable of automatically applying a tape to a battery cell assembly.

[0008] The present disclosure aims to provide a tape applying device and a tape applying method that can reduce damage to battery cells when applying tape to battery cell assemblies.

[0009] The tape produced by the disclosed tape applying device and method can be incorporated into a battery cell assembly. The battery cell assembly can be widely used in electric vehicles, battery charging stations, and other green technology fields such as photovoltaic and wind power generation using batteries. Furthermore, the battery cell assembly containing the tape produced by the disclosed tape applying device and method can be used in eco-friendly electric vehicles and hybrid vehicles, which aim to mitigate climate change by suppressing air pollution and greenhouse gas emissions.

[0010] Technical Solution

[0011] The tape pasting device disclosed herein may include: a cell assembly supply portion for accommodating an electrode assembly including a plurality of cells; and a tape supply portion for pasting a tape for connecting the plurality of cells to the cell assembly. The tape supply portion may include: an adsorption pad configured to be pasted to a central region of the tape; and a pasting roller for pressing the tape against the cell assembly. The pasting roller may perform: a first operation of moving the tape from the central region to the end region of the tape before the tape contacts the cell assembly; a second operation of bringing the end region into contact with the cell assembly; and a third operation of pressing the tape against the curved region of the tape from the end region.

[0012] According to one embodiment, the adsorption pad is movable along a first direction toward the battery cell assembly.

[0013] According to one embodiment, the adsorption pad may move in a second direction perpendicular to the first direction in the first operation, and may move in a third direction opposite to the first direction in the third operation.

[0014] According to one embodiment, the pasting rollers may include a first pasting roller and a second pasting roller spaced apart from the first pasting roller. In the first operating state, the first pasting roller may move in a direction opposite to that of the second pasting roller. In the third operating state, the first pasting roller may move in a direction parallel to that of the second pasting roller.

[0015] According to one embodiment, the adsorption pad may be located between the first pasting roller and the second pasting roller.

[0016] According to one embodiment, the adhesive tape supply portion may include a guide member configured to contact a curved region between the central region and the end region and bend the curved region.

[0017] According to one embodiment, the adhesive tape supply unit may include: a spool configured to be wound with the adhesive tape; and at least one guide roller for adjusting tension of the adhesive tape.

[0018] According to one embodiment, the tape supply portion may include: a clamp configured to fix the tape; and a tape cutting portion, which includes a blade configured to cut the tape and a slider configured to move the blade along a second direction perpendicular to the first direction in which the tape moves.

[0019] According to one embodiment, each of the plurality of battery cells may include an electrode plate and an electrode lead connected to the electrode plate. The battery cell assembly may include a first surface facing the same direction as the electrode lead, a second surface at least partially perpendicular to the first surface, and a third surface at least partially perpendicular to the first surface and at least partially parallel to the second surface. The adsorption pad may be configured to face the first surface. The pasting roller may be configured to face the second surface and the third surface.

[0020] According to one embodiment, the battery cell assembly may include a corner portion located between the first surface and the second surface or between the first surface and the third surface. The application roller may be configured to apply the adhesive tape to the corner portion of the battery cell assembly on the second surface or the third surface.

[0021] The tape pasting method disclosed herein may include: a process of pasting an adsorption pad on the central area of ​​the tape; a process of moving a pasting roller from the central area to the end area of ​​the tape; a process of using the adsorption pad to make the central area contact the battery cell assembly; a process of using the pasting roller to make the end area contact the battery cell assembly; and a process of pasting the tape on the battery cell assembly using the pasting roller.

[0022] According to one embodiment, the process of bringing the central region into contact with the battery cell assembly using the adsorption pad may include moving the adsorption pad in a first direction toward the battery cell assembly. The process of moving the application roller from the central region toward the end region of the adhesive tape may include moving the application roller in a second direction perpendicular to the first direction.

[0023] According to one embodiment, the process of applying the adhesive tape to the battery cell assembly using the adhesive roller may include moving the adhesive roller from the end region along a third direction opposite to the first direction to the curved region of the adhesive tape.

[0024] Technical Effects

[0025] According to one embodiment, when the adhesive tape is attached to the battery cell assembly, the force applied to the battery cell is reduced, thereby preventing or reducing damage to the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a perspective view of a battery cell assembly according to one embodiment;

[0027] Figure 2 is a schematic diagram of a tape applying device according to one embodiment;

[0028] Figures 3a to 3dis a schematic diagram for illustrating a process of attaching an adhesive tape to a battery cell assembly according to one embodiment;

[0029] Figure 4 is a flowchart for explaining a method of attaching an adhesive tape to a battery cell assembly according to one embodiment. DETAILED DESCRIPTION

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings. However, this is merely an example, and the present disclosure is not limited to the specific embodiments described exemplarily.

[0031] The terms and words used in this specification and claims are not to be construed with limitation to their conventional or dictionary meanings. Instead, they should be construed in accordance with the meanings and concepts that are consistent with the technical concept of the present invention, based on the principle that the inventors can appropriately define the concepts of the terms in order to best describe their invention.

[0032] Therefore, it should be understood that the embodiments described in this specification and the structures shown in the drawings are only the most preferred embodiments of the present disclosure and do not represent all the technical ideas of the present disclosure. When applying for this application, there may be various equivalents and modifications that can replace them.

[0033] The following describes embodiments of the present disclosure with reference to the accompanying drawings. Identical components in the drawings are denoted by the same reference numerals whenever possible. Detailed descriptions of known functions and configurations that may obscure the essence of the present disclosure are omitted. Some components in the drawings are exaggerated, omitted, or simplified, and the sizes of the components do not fully reflect their actual sizes.

[0034] Figure 1 is a perspective view of a battery cell assembly according to one embodiment.

[0035] See also Figure 1 The battery cell assembly 101 may include a plurality of battery cells 100 and a tape 160 connecting the plurality of battery cells 100. The tape 160 may be referred to as an adhesive tape or an adhesive member.

[0036] Figure 1 The battery cell 100 may be a secondary battery. For example, the battery cell 100 may be a lithium-ion battery, but is not limited thereto. For example, the battery cell 100 may be a nickel-cadmium battery, a nickel-metal hydride battery, or a nickel-hydrogen battery that can be charged and discharged.

[0037] The shape of the battery cell 100 can be selectively designed. For example, the battery cell 100 can be a pouch-type battery or a prismatic battery. When the battery cell 100 is configured as a pouch-type battery, the adhesive tape 160 can be attached to the surface of the pouch of the battery cell 100. When the battery cell 100 is configured as a prismatic battery, the adhesive tape 160 can be attached to the surface of the can of the battery cell 100.

[0038] The battery cell 100 may include an electrode lead 130. The electrode lead 130 may be electrically connected to an electrode assembly (not shown) located inside the battery cell 100. The electrode lead 130 may be used to transmit the current of the battery cell 100 to the outside of the battery cell 100. For example, the electrode lead 130 may be electrically connected to a bus bar. In one embodiment, the electrode leads 130 may be configured to face opposite directions to each other on both sides of the length direction (Y-axis direction) of the battery cell 100. For example, the electrode lead 130 may include a positive lead 130a of a first polarity (e.g., positive electrode) facing one side (e.g., first direction (+Y direction)) of the length direction of the battery cell 100 and a negative lead 130b of a second polarity (e.g., negative electrode) facing the other side (e.g., third direction (-Y direction)) of the length direction. The direction in which the electrode lead 130 is located may be selectively designed. In one embodiment (e.g., Figure 1 ), the electrode lead 130 may include a positive electrode lead 130 a and a negative electrode lead 130 b located in the opposite direction of the positive electrode lead 130 a with respect to the electrode assembly 120 . Figure 1 While electrode leads 130 are shown as being arranged on opposite sides of the lengthwise direction (e.g., the Y-axis direction) of the battery cell 100, the structure of the electrode leads 130 is not limited thereto. For example, the two electrode leads 130 may be arranged substantially parallel to each other along the lengthwise direction (e.g., the Y-axis direction) of the battery cell 100.

[0039] The electrode assembly (not shown) may include a positive electrode plate, a negative electrode plate, and a separator. The separator prevents contact between the positive and negative electrode plates. Those skilled in the art will appreciate that the electrode assembly can be fabricated in various ways, such as stacked, jelly-rolled, or Z-folded.

[0040] The battery cell assembly 101 may have a substantially hexahedral shape. For example, the battery cell assembly 101 may include: a first surface S1 oriented in the same direction as the electrode leads 130 of the battery cells 100 (e.g., the Y-axis direction); a second surface S2 at least partially substantially perpendicular to the first surface S1; a third surface S3 substantially parallel to the second surface S2; and a fourth surface S4 substantially perpendicular to the first and second surfaces S1 and S2. The second and third surfaces S2 and S3 may be surfaces defined by the outermost battery cells 100 of the plurality of battery cells 100. The fourth surface S4 may be a surface defined by the side surfaces of the plurality of battery cells 100. In one embodiment, the battery cell assembly 101 may be referred to as a battery cell stack. The tape 160 may be attached to at least a portion of the first and second surfaces S1 and S2.

[0041] The tape 160 may connect the plurality of battery cells 100. For example, the tape 160 may reduce movement of the plurality of battery cells 100. According to one embodiment, the tape 160 may be an insulating tape.

[0042] According to one embodiment, a plurality of tapes 160 may be provided. For example, the tapes 160 may include a first tape 160a and a second tape 160b spaced apart from the first tape 160a. The electrode lead 130 may be positioned between the first tape 160a and the second tape 160b. According to one embodiment, the tapes 160 may be arranged adjacent to the positive electrode lead 130a and the negative electrode lead 130b.

[0043] In this specification, the tape 160 is shown extending from the second surface S2 through the first surface S1 and to the third surface S3, but the attachment position of the tape 160 is not limited thereto. For example, in one embodiment, the tape 160 can extend from the second surface S2 through the fourth surface S4 and to the third surface S3.

[0044] Figure 2 is a schematic diagram of a tape applying device according to one embodiment. Figures 3a to 3d is a schematic diagram for explaining a process of attaching an adhesive tape to a battery cell assembly according to one embodiment.

[0045] See also Figure 2 、 Figure 3a 、 Figure 3b 、 Figure 3c and / or Figure 3d The tape applying device 200 may include a cell assembly supply unit 201 and a tape supply unit 202. Figure 1 The description of the battery cell assembly 101 and the tape 160 may be applicable to Figure 2 、 Figure 3a 、 Figure 3b 、 Figure 3c and / or Figure 3d The battery cell assembly 101 and the tape 160 are provided.

[0046] The tape applying device 200 may apply the tape 160 to the cell assembly 101 accommodated in the cell assembly supply portion 201 using the tape supply portion 202. For example, the tape applying device 200 may apply the tape 160 to at least a portion of the first side S1 and the second side S2 of the cell assembly 101 and connect the plurality of battery cells 100.

[0047] The cell assembly supply portion 201 may accommodate the cell assembly 101. For example, the cell assembly supply portion 201 may include a tray 201a accommodating the cell assembly 101 including a plurality of battery cells 100.

[0048] According to one embodiment, the battery cell assembly supply unit 201 may transfer the battery cell assembly 101 to the tape supply unit 202. For example, the battery cell assembly supply unit 201 may include a driving structure (e.g., a lifting component, a robot, and / or a conveyor) configured to move the tray 201a. The battery cell assembly supply unit 201 may move the tray 201a so that the plurality of battery cells 100 are adjacent to the tape supply unit 202. The battery cell assembly supply unit 201 may be selectively designed. For example, if the battery cell assembly supply unit 201 moves the battery cell assembly 101 close to the tape supply unit 202, the structure of the battery cell assembly supply unit 201 may be changed. For ease of explanation, in Figure 3c and Figure 3d The battery cell assembly supply unit 201 is omitted.

[0049] The adhesive tape supply unit 202 may include a film F. The film F may include a base sheet and an adhesive material disposed on the base sheet. The film F may be used to manufacture the adhesive tape 160. For example, a portion of the film F may be cut, and the cut film F may be referred to as the adhesive tape 160. The film F may also be referred to as the adhesive tape material.

[0050] The tape supply unit 202 may include a spool 230 that holds at least a portion of the film F. For example, at least a portion of the film F may be wound around the spool 230. The spool 230 may be rotated by a driving force transmitted from an external source. The rotation of the spool 230 allows the film F to be unwound from the spool 230 and transferred to the adsorption pad 210. In one embodiment, the spool 230 may be referred to as a tape supply roller.

[0051] The tape supply portion 202 may include at least one guide roller 240 for adjusting a moving direction of the film F. For example, the film F unwound from the spool 230 may move along the guide roller 240 .

[0052] According to one embodiment, the guide rollers 240 can adjust the tension of the film F. For example, the guide rollers 240 can include at least one fixed roller 241 and at least one swinging roller 242. The swinging roller 242 can move relative to the fixed roller 241. The movement of the swinging roller 242 can adjust the tension of the film F. The number and / or size of the guide rollers 240 can be selectively designed.

[0053] According to one embodiment, the tape supply unit 202 can increase the tension of the film F in order to cut it. The tape supply unit 202 can include a gripper 250 for securing the end of the film F. The gripper 250 can grip the end of the film F at specified intervals or based on processor input. After the film F is cut by the tape cutting unit 260, the gripper 250 can reduce the pressure applied to the cut film F (or tape 160). The tape supply unit 202 can include a guide block 270. In one embodiment, the guide block 270 can contact the film F using a lifting cylinder and apply pressure to the film F. The guide block 270 can be moved by the lifting cylinder to separate from the film F or tape 160. The gripper 250 and the guide block 270 can keep at least a portion of the film F taut. The tape 160, separated from the gripper 250 and the guide block 270, can be moved by the suction pad 210.

[0054] The tape supply unit 202 may include a tape cutting unit 260. The tape cutting unit 260 can cut the film F unrolled by the clamp 250 and the guide block 270. The film F cut by the tape cutting unit 260 may be referred to as the tape 160. The tape cutting unit 260 may be located between the guide block 270 and the clamp 250. According to one embodiment, the tape cutting unit 260 may include a blade 261 for cutting the film F and a lifting member 262 for moving the blade 261. The lifting member 262 can move the blade 261 in a direction perpendicular to the direction of movement of the film F.

[0055] The tape supply unit 202 may include an adsorption pad 210. The adsorption pad 210 may move the tape 160 cut by the tape cutting unit 260. For example, the adsorption pad 210 may vacuum adsorb the tape 160 and move with the tape 160. The adsorption pad 210 may be located between the tape cutting unit 260 and the clamp 250.

[0056] According to one embodiment, the tape supply unit 202 may include a drive structure (not shown) for moving the adsorption pad 210 and / or the application roller 220. The drive structure may be designed selectively. For example, the drive structure may include at least one of a drive cylinder, a motor, a robot, or a gear. At least one of the adsorption pad 210 or the application roller 220 may be moved by the drive structure.

[0057] According to one embodiment, the adsorption pad 210 may be separated from the tape cutting portion 260. For example, in one embodiment, the adsorption pad 210 may be movable independently of the tape cutting portion 260.

[0058] According to one embodiment, the adsorption pad 210 can attach the tape 160 to the battery cell assembly 101. For example, the adsorption pad 210 can attach the tape 160 to the first surface S1 of the battery cell assembly 101.

[0059] The adsorption pad 210 can move in a first direction (+Y direction) toward the battery cell assembly 101. The tape 160 can move toward the battery cell assembly 101 together with the adsorption pad 210 and contact the battery cell assembly 101. The tape 160 can be temporarily attached to the battery cell assembly 101 through the adsorption pad 210.

[0060] The tape supply unit 202 may include a sticking roller 220. The sticking roller 220 can apply pressure to the tape 160. The pressure provided by the sticking roller 220 allows the tape 160 to be stuck to the plurality of battery cells 100, thereby connecting the plurality of battery cells 100. The force transmitted from the sticking roller 220 can reduce bubbles generated in the tape 160. The sticking roller 220 can improve the bonding strength of the tape 160 to the plurality of battery cells 100. For example, the sticking roller 220 can increase the contact area between the tape 160 and the battery cells 100.

[0061] The sticking roller 220 can reduce the damage of the cell assembly 101 caused by the pulling force. For example, the sticking roller 220 can prevent the cell (eg, Figure 1 The diaphragm or electrode plate of the battery cell 100) is damaged.

[0062] According to one embodiment, the sticking roller 220 may include a first sticking roller 220 a and a second sticking roller 220 b that may be spaced apart from the first sticking roller 220 a .

[0063] See also Figure 3a , the adsorption pad 210 can be attached to the central region 161 of the adhesive tape 160. The adsorption pad 210 can move together with the adhesive tape 160 so that the adhesive tape 160 faces the first surface S1 of the battery cell assembly 101. At least a portion of the attachment roller 220 can move together with the adsorption pad 210 while being adjacent to the central region 161 of the adhesive tape 160. According to another embodiment, the adhesive tape 160 can face the battery cell assembly 101 by moving the battery cell assembly 101 and / or the tray 201a.

[0064] See also Figure 3b, the application roller 220 may perform a first operation of moving toward the end region 162 of the adhesive tape 160. For example, the application roller 220 may move in a second direction (X-axis direction) from the center region 161 of the adhesive tape 160 toward the end region 162 of the adhesive tape 160. According to one embodiment, in the first operation, the direction of movement of the first application roller 220a may be opposite to the direction of movement of the second application roller 220b. For example, the first application roller 220a may move toward the first end 162a of the adhesive tape 160 (e.g., in the +X direction), while the second application roller 220b may move toward the second end 162b opposite the first end 162a (e.g., in the -X direction). In one embodiment, the end region 162 may be referred to as a peripheral region.

[0065] See also Figure 3c The adsorption pad 210 and the pasting roller 220 can bring the adhesive tape 160 into contact with the battery cell assembly 101. According to one embodiment, the adsorption pad 210 can bring the central region 161 of the adhesive tape 160 into contact with or temporarily adhere to the first surface S1 of the battery cell assembly 101. The pasting roller 220 can perform a second operation of bringing the end region 162 of the adhesive tape 160 into contact with or temporarily adhere to the second surface S2 or the third surface S3 of the battery cell assembly 101.

[0066] According to one embodiment, after the application roller 220 moves toward the end region 162 of the adhesive tape 160, the adsorption pad 210 may be moved to approach the battery cell assembly 101. For example, the adsorption pad 210 may be moved along a first direction (+Y direction) perpendicular to the second direction (X-axis direction) toward the first surface S1 of the battery cell assembly 101. The movement of the adsorption pad 210 allows the central region 161 of the adhesive tape 160 to contact the battery cell assembly 101.

[0067] According to one embodiment, the sticking roller 220 may perform a second operation of bringing the end region 162 into contact with the battery cell assembly 101 after the first operation.

[0068] The second operation may include a horizontal movement step of the adhesive roller 220 in the first direction (+Y direction). For example, the adhesive roller 220 may move together with the adsorption pad 210. According to one embodiment, the second operation may include a vertical movement step after the horizontal movement step to bring the end region 162 into contact with the battery cell assembly 101. For example, the adhesive roller 220 may move in the second direction (X-axis direction) to bring the end region 162 of the adhesive tape 160 into contact with the battery cell assembly 101.

[0069] According to one embodiment, when the application roller 220 moves in the second direction, the adhesive tape 160 may be bent by the guide member 280. For example, the adhesive tape 160 includes a bending region 163 between the central region 161 and the end region 162, and the adhesive tape 160 may be bent in the bending region 163.

[0070] According to one embodiment, the guide member 280 may bend the adhesive tape 160. For example, the guide member 280 may contact the bending region 163. The adhesive tape 160 is moved by the adsorption pad 210 and / or the application roller 220, so that a portion of the adhesive tape contacting the guide member 280 (for example, the bending region 163) may be bent.

[0071] According to one embodiment, the guide member 280 can move along a fourth direction (Z-axis direction) perpendicular to the first direction or the second direction. By moving along the fourth direction, the guide member 280 can be located between the tape 160 and the battery cell assembly 101 .

[0072] According to one embodiment, the guide member 280 may include a spring. For example, the guide member 280 may be a spring plate. The structure of the guide member 280 may be selectively designed. For example, by using other driving devices, the guide member 280 may be moved in the fourth direction (Z-axis direction).

[0073] See also Figure 3d , the application roller 220 can perform a third operation to closely adhere the tape 160 from the end region 162 to the curved region 163 of the tape 160. For example, after the end region 162 of the tape 160 contacts the battery cell assembly 101, the application roller 220 can move in a third direction (-Y direction) opposite the first direction. The tape 160 may include a curved region 163 opposite the corner 101a of the battery cell assembly 101. The curved region 163 may be located between the center region 161 and the end region 162. The application roller 220 can move while applying pressure to the tape 160 from the end region 162 to the curved region 163. According to one embodiment, the tape 160 may be made of an elastic material. According to an embodiment not shown, at least a portion of the curved region 163 may protrude. For example, through the third operation, portions of the tape 160 may overlap. According to one embodiment, the corner portion 101 a of the cell assembly 101 may be a corner between the first surface S1 and the second surface S2 of the cell assembly 101 and / or a corner between the first surface S1 and the third surface S3 of the cell assembly 101 .

[0074] According to one embodiment, the adsorption pad 210 can be removed from the tape 160. When separated from the tape 160, the adsorption pad 210 can apply force to the tape 160 and / or the cell assembly 101 in a first direction (the Y direction). The application roller 220 can apply force to the tape 160 and / or the cell assembly 101 in the third direction (the -Y direction) while moving in a third direction (the -Y direction) opposite to the first direction (the +Y direction). Because the direction of the force applied by the adsorption pad 210 to the cell assembly 101 differs from the direction of the force applied by the application roller 220 to the cell assembly 101, the tension and / or force transmitted to the tape 160 can be reduced. This reduced tension and / or force can reduce damage to the cell assembly 101 and / or the tape 160. For example, damage to the cell components of the battery cell 100 (e.g., electrode plates and / or separators) can be reduced. The electrode plates of the battery cell 100 can be reduced from falling off.

[0075] Figure 4 is a flowchart for explaining a method of attaching an adhesive tape to a battery cell assembly according to one embodiment.

[0076] Figure 4 The tape application method 300 may be used Figures 2 to 3d The method of the tape sticking device 200 sticking the tape 160 to the battery cell assembly 101. Figures 2 to 3d The description of the adhesive tape 160 and the adhesive tape applying device 200 described in Figure 4 .

[0077] See also Figure 4 The tape pasting method 300 may include: a process 310 of pasting the adsorption pad 210 to the central area 161 of the tape 160; a process 320 of moving the pasting roller 220 from the central area 161 of the tape 160 to the end area 162; a process 330 of using the adsorption pad 210 to make the central area 161 of the tape 160 contact the battery cell assembly 101; a process 340 of using the pasting roller 220 to make the end area 162 of the tape 160 contact the battery cell assembly 101; and / or a process 350 of using the pasting roller 220 to make the tape 120 close to the battery cell assembly 101.

[0078] According to one embodiment, in process 310 of attaching adsorption pad 210 to central region 161 of adhesive tape 160, adsorption pad 210 may be attached to adhesive tape 160 cut by adhesive tape cutting unit 260. When adsorption pad 210 is attached to central region 161 of adhesive tape 160, at least a portion of attachment roller 220 may be opposed to central region 161. In one embodiment, adsorption pad 210 may be moved using a separate driving device (e.g., a cylinder).

[0079] In the process 320 of moving the pasting roller 220 from the central area 161 to the end area 162 of the adhesive tape 160, the pasting roller 220 may be moved using a separate driving device. According to one embodiment, when the pasting roller 220 includes a plurality of pasting rollers (e.g., including Figure 3a When the sticking rollers 220 move toward the end region 162, the first sticking roller 220a may move relatively away from the second sticking roller 220b. For example, the moving direction of the first sticking roller 220a may be opposite to the moving direction of the second sticking roller 220b.

[0080] The process 330 of making the end region 162 of the tape 160 contact the battery cell assembly 101 using the sticking roller 220 may include: Figure 3c +Y direction) moving the sticking roller 220; and moving the sticking roller 220 in a second direction (eg, perpendicular to the first direction (+Y direction)) Figure 3a The step of moving the pasting roller 220 in the X-axis direction. The pasting roller 220 can bend the adhesive tape 160. For example, a portion of the adhesive tape 160 can be bent by the pasting roller 220 and the guide member (for example, Figure 3c The guide member 280) is bent.

[0081] The process 340 of attaching the tape 160 to the cell assembly 101 using the attachment roller 220 may include moving the attachment roller 220 from the end region 162 of the tape 160 to the curved region 163 of the tape 160 along a third direction (−Y direction) opposite to the first direction (+Y direction).

[0082] The above-described contents are merely examples of applying the principles of the present disclosure, and other components may be further included without departing from the scope of the present disclosure.

[0083] While the embodiments of the present invention have been described above, the scope of the present invention is not limited thereto. Various modifications and variations may be made without departing from the technical concept of the present invention as described in the claims, as will be apparent to those skilled in the art. For example, the present invention may be implemented by deleting some of the components in the above embodiments, or by combining the various embodiments.

Claims

1. A tape sticking device, comprising: A battery cell assembly supply unit, accommodating an electrode assembly including a plurality of battery cells; as well as an adhesive tape supply unit, configured to attach an adhesive tape for connecting the plurality of battery cells to the battery cell assembly, Wherein, the tape supply unit includes: an adsorption pad configured to be attached to a central area of ​​the adhesive tape; and The sticking roller is used to stick the tape to the battery cell assembly. The sticking roller is configured to perform: Before the adhesive tape contacts the battery cell assembly, a first operation of moving the adhesive tape from the central region toward the end region of the adhesive tape; a second operation of bringing the end region into contact with the battery cell assembly; and A third operation is to press the adhesive tape from the end region to the curved region of the adhesive tape. 2 . The tape applying device according to claim 1 , wherein the adsorption pad is configured to move along a first direction toward the battery cell assembly. 3 . The tape applying device according to claim 2 , wherein the adsorption pad is configured to move in a second direction perpendicular to the first direction in the first operation and to move in a third direction opposite to the first direction in the third operation.

4. The tape applying device according to claim 3, wherein the applying roller comprises a first applying roller and a second applying roller spaced apart from the first applying roller. In the first operation, the direction in which the first pasting roller moves is opposite to the direction in which the second pasting roller moves. In the third operation, the direction in which the first pasting roller moves is parallel to the direction in which the second pasting roller moves. 5 . The tape applying device according to claim 4 , wherein the adsorption pad is configured to be located between the first applying roller and the second applying roller.

6. The tape applying device according to claim 1, wherein the tape supply unit comprises: The guide member is configured to contact the curved region between the central region and the end region and bend the curved region.

7. The tape-adhering device for a battery cell assembly according to claim 1, wherein the tape supply unit comprises: a spool configured to be wound with the tape; as well as At least one guide roller is used to adjust the tension of the adhesive tape.

8. The tape applying device according to claim 1, wherein the tape supply unit comprises: a holder configured to secure the tape; as well as The tape cutting portion includes a blade configured to cut the tape and a slider configured to move the blade in a second direction perpendicular to a first direction in which the tape moves.

9. The tape applying device according to claim 1, wherein each of the plurality of battery cells comprises an electrode plate and an electrode lead connected to the electrode plate. The battery cell assembly includes a first surface facing the same direction as the electrode lead, a second surface at least partially perpendicular to the first surface, and a third surface at least partially perpendicular to the first surface and at least partially parallel to the second surface. The adsorption pad is configured to be opposite to the first surface, The attachment roller is configured to face the second surface and the third surface.

10. The tape applying device according to claim 9, wherein the battery cell assembly comprises a corner portion located between the first surface and the second surface or between the first surface and the third surface. The sticking roller is configured to stick the adhesive tape to a corner portion of the battery cell assembly on the second surface or the third surface.

11. A tape pasting method comprising: The process of attaching the absorbent pad to the center area of ​​the tape; a process of moving the sticking roller from the central area to the end areas of the tape; A process of contacting the central area with the battery cell assembly using the adsorption pad; a process of making the end region contact the battery cell assembly using the sticking roller; and A process of using the sticking roller to tightly adhere the tape to the battery core assembly.

12. The tape applying method according to claim 11, comprising: The process of using the adsorption pad to make the central area contact the battery cell assembly includes the steps of moving the adsorption pad along a first direction toward the battery cell assembly, The process of moving the sticking roller from the central area to the end area of ​​the adhesive tape includes the step of moving the sticking roller along a second direction perpendicular to the first direction.

13. The tape-adhering method according to claim 12, wherein the process of using the adhesive roller to closely adhere the tape to the battery cell assembly comprises the step of moving the adhesive roller from the end region along a third direction opposite to the first direction to the curved region of the tape.

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