Taping device for secondary batteries

Abstract

The present invention relates to a taping device for a secondary battery. A taping device for a secondary battery according to an embodiment of the present invention comprises a cell mounting portion that rotates 90 degrees in one direction and is provided with a space for mounting a plurality of battery cells, and a taping device provided near the cell mounting portion for taping the battery cells, wherein the taping device comprises one or more tape supply portions provided with tape, a first body portion provided below the tape supply portion and fixing the tape supply portion, and one or more guide roller portions for conveying the tape supplied from the tape supply portion, wherein the taping device comprises a second body portion provided below the tape supply portion and provided on one side of the first body portion, one or more head portions for taping the battery cells, and one or more guide roller portions for conveying the tape supplied from the tape supply portion, and a third body portion provided on one side of the second body portion, wherein the second body portion comprises a body transfer portion that is fastened to the lower part of the second body portion and moves the second body portion in a first axial direction (X-axis); The first body part is installed on one side of the first body part and connected to one side of the body transfer part, and includes a cylinder that provides power to move the body transfer part, and a piston that is installed on one side of the first body part and installed on the upper part of the cylinder, and moves the second body part by moving a shaft installed in the second body part in both directions, and the cylinder, body transfer part, piston, and shaft are each installed in the one or more head parts, and when attachment information including the number of tapes to be attached to one side of the battery cell and the spacing between tapes is input through a control means that controls the taping device, the head part to be taped on the battery cell and the head part not to be used are distinguished in the one or more head parts, and the head part to be taped on the battery cell is controlled in the first axial direction (X) axis.

Description

Technology Field

[0001] The present invention relates to a taping device for a secondary battery. More specifically, it relates to a taping device for fixing one or more cells stacked in a secondary battery with adhesive tape. Background Technology

[0003] Recently, rechargeable secondary batteries are being widely used as an energy source for wireless mobile devices. Furthermore, secondary batteries are attracting attention as an energy source for electric vehicles and hybrid electric vehicles, which are being proposed as solutions to address air pollution caused by conventional gasoline and diesel vehicles that use fossil fuels. Consequently, the types of applications utilizing secondary batteries are becoming highly diversified due to their advantages, and it is expected that secondary batteries will be applied to a wider range of fields and products in the future than they are today.

[0004] These secondary batteries are classified into lithium-ion batteries, lithium-ion polymer batteries, and lithium-polymer batteries depending on the composition of the electrodes and electrolytes; among them, the use of lithium-ion polymer batteries is increasing due to their low risk of electrolyte leakage and ease of manufacturing.

[0005] Generally, secondary batteries are classified according to the shape of the battery case into cylindrical batteries and prismatic batteries in which the electrode assembly is embedded in a cylindrical or prismatic metal can, and pouch-type batteries in which the electrode assembly is embedded in a pouch-type case made of an aluminum laminate sheet. The electrode assembly embedded in the battery case is a power generation element capable of charging and discharging, consisting of a positive electrode, a negative electrode, and a separator structure interposed between the positive electrode and the negative electrode. It is classified into a jelly-roll type, which is wound with a separator interposed between a long sheet-type positive electrode and a negative electrode coated with an active material, and a stack type, which is sequentially stacked with a plurality of positive electrodes and negative electrodes of a predetermined size interposed with a separator.

[0006] Among these, the increase in battery capacity has led to greater interest in large-area cases and processing into thin materials, and consequently, usage is gradually increasing.

[0007] Since excess sealing portions on the outer surface of these battery cells cause an increase in the size of the battery, they are attached to the side surface of the electrode assembly housing. They are secured by applying adhesive to the excess sealing portions or by attaching tape to the excess sealing portions.

[0008] As such, when an adhesive is used to secure the sealing excess parts in a conventional battery cell, there is a problem in that the sealing excess parts are restored to their pre-bending state from the side of the electrode assembly housing, and the structural stability of the sealing state is not excellent.

[0009] Furthermore, these processes are conventionally performed manually, resulting in very low productivity, and when using conventional tape attachment devices, multiple tape attachment processes are carried out individually, leading to inefficiency. Prior art literature

[0011] Korean Patent Publication No. 10-2414044 (Date of publication: June 28, 2022) The problem to be solved

[0012] The objective of the present invention is to provide a taping device for a secondary battery for fixing with adhesive tape for working with different number of tapings and spacing between tapings on each side of one or more stacked cells. means of solving the problem

[0014] In order to solve the above problem,

[0015] A taping device for a secondary battery according to one embodiment of the present invention is a device for taping a plurality of battery cells, wherein

[0016] A space is provided for mounting multiple battery cells, and a cell mounting portion that rotates 90 degrees in one direction;

[0017] A taping device provided near the cell mounting portion and taping the battery cell; comprising

[0018] The above taping device is,

[0019] One or more tape supply units equipped with tapes;

[0020] A first body part provided at the lower part of the tape supply unit and fixing the tape supply unit;

[0021] It includes one or more guide roller sections for conveying a tape supplied by the tape supply section, and a second body section provided at the bottom of the tape supply section and on one side of the first body section; and

[0022] It includes one or more head portions for taping the battery cell and one or more guide roller portions for conveying the tape supplied from the tape supply portion, and a third body portion provided on one side of the second body portion;

[0023] The second body part comprises a body transfer part that is fastened to the lower part of the second body part and moves the second body part in a first axial direction (X-axis);

[0024] The above-mentioned first body part is,

[0025] A cylinder installed on one side of the first body part, connected to one side of the body transfer part, and providing power to move the body transfer part;

[0026] A piston installed on one side of the first body part and installed on the upper part of the cylinder, which moves the second body part by moving a shaft installed in the second body part in both directions; comprising

[0027] In each of the above one or more head sections, the cylinder, body transfer section, piston, and shaft are respectively installed, and when attachment information including the number of tapes to be attached to one side of the battery cell and the spacing between the tapes is input through a control means that controls the taping device, the head section to be taped on the battery cell and the head section not to be used are distinguished in the above one or more head sections, and the head section to be taped on the battery cell can be controlled in the first axial direction (X) axis.

[0029] In addition, in a taping device for a secondary battery according to one embodiment of the present invention, the tape supply unit may be configured to correspond to each of the one or more head units.

[0031] In addition, in a taping device for a secondary battery according to an embodiment of the present invention, the second body part comprises a first roller support part installed on one side of a guide roller part installed in the second body part and supporting a tape disposed on the guide roller part;

[0032] At least one of the first roller support members may be installed in the second body part.

[0034] In addition, in a taping device for a secondary battery according to an embodiment of the present invention, the third body part comprises a second roller support part installed on one side of a guide roller part installed in the third body part and supporting a tape disposed on the guide roller part;

[0035] The second roller support may be installed at least one in the third body part.

[0037] In addition, in a taping device for a secondary battery according to one embodiment of the present invention, the head portion is,

[0038] A tape case for casing a tape conveyed through the second body part and one or more guide roller parts installed on the second body part;

[0039] A tape cutting section for cutting the above tape; and

[0040] It may further include a compression roller that compresses the tape attached to the battery cell.

[0042] In addition, a taping device for a secondary battery according to one embodiment of the present invention may further include a fourth body part installed at the lower part of the second body part and adjusting the spacing between one or more head parts installed in the third body part.

[0044] In addition, in a taping device for a secondary battery according to an embodiment of the present invention, the fourth body part is,

[0045] A adjusting rod installed on one surface of the fourth body part and adjusting the gap between the one or more head parts; and

[0046] It may further include a spacing adjustment member that is provided to extend to the lower part of the head portion and is installed on the adjustment rod, wherein the head portion moves in a second axial direction (Y-axis) through the adjustment rod to adjust the spacing between one or more head portions.

[0048] In addition, in a taping device for a secondary battery according to an embodiment of the present invention, when the attachment information is input to the control means, the gap adjustment member provided in each of the one or more head parts can be controlled to adjust the gap between the head part and another head part.

[0050] In addition, in a taping device for a secondary battery according to an embodiment of the present invention, taping devices are respectively provided on both sides based on the cell mounting portion, and

[0051] The above battery cell primarily attaches a tape through one or more head units based on attachment information previously input through the control means, and

[0052] After the cell mounting portion rotates 90 degrees in one direction to set the unattached side to the taping device, the tape can be secondarily attached through the one or more head portions based on attachment information previously entered through the control means.

[0054] These means of solution will become more apparent from the following detailed description of the invention based on the attached drawings.

[0056] Prior to this, terms and words used in this specification and claims should not be interpreted in their ordinary and dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Effects of the invention

[0058] According to one embodiment of the present invention, the number of tapes attached to one side of a battery cell and the spacing between the tapes can be attached differently on each side, so that taping work is possible even if the types of battery cells are different. Brief explanation of the drawing

[0060] FIG. 1 is an overall perspective view showing a taping device for a secondary battery according to an embodiment of the present invention. FIG. 2 is a plan view showing the state of one or more head portions of a taping device for a secondary battery according to an embodiment of the present invention. FIG. 3 is a front view showing a first body part, a second body part, and a third body part of a taping device for a secondary battery according to an embodiment of the present invention. FIGS. 4a and 4b are plan views showing the structure in which the head portion of a taping device for a secondary battery operates according to an embodiment of the present invention. FIG. 5 is a partial perspective view showing the third body part and the fourth body part of a taping device for a secondary battery according to an embodiment of the present invention. FIG. 6 is a perspective view showing the arrangement structure of two taping devices and a cell mounting portion of a taping device for a secondary battery according to an embodiment of the present invention. FIGS. 7a to 7d are exemplary drawings showing different taping numbers and spacing between tapes on each side of a battery cell of a taping device for a secondary battery according to an embodiment of the present invention. Specific details for implementing the invention

[0061] The unique aspects and specific technical features of the present invention will become more apparent from the following specific details and embodiments associated with the accompanying drawings. It should be noted that in assigning reference numerals to the components of each drawing in this specification, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing an embodiment of the present invention, if it is determined that a detailed description of related known components or functions could obscure the essence of the invention, such detailed description is omitted.

[0062] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the present invention. These terms are intended merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by such terms. Where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that while the component may be directly connected or connected to the other component, another component may also be "connected," "combined," or "connected" between each component.

[0064] Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings as follows.

[0066] As illustrated in FIG. 1, a taping device (1) for a secondary battery according to an embodiment of the present invention may be configured to include a first body part (10), a second body part (20), a third body part (30), a fourth body part (40), a tape supply part (50), and a guide roller part (60).

[0067] The tape supply unit (50) is a device for supplying tape for taping a plurality of stacked battery cells (c), and the number of tape supply units (50) may be equal to the number of head units (31) to be described later. In the present invention, the taping device (1) may be structured to have five head units (31) and five tape supply units (50), but the number is not limited thereto.

[0068] The first body part (10) is provided at the bottom of the tape supply part (50) and may be structured to fix one or more tape supply parts (50).

[0069] The second body part (20) is provided at the bottom of the tape supply part (50), and is provided on one side of the first body part (10), for example, on the right side of the first body part (10) as described with reference to FIG. 1, and one or more guide roller parts (60) may be provided so that the tape provided by the tape supply part (50) can be smoothly transported to the head part (31) to be described later.

[0070] The third body part (30) is provided on one side of the second roller part (20), for example, on the right side of the second body part (20) as described with reference to FIG. 1, and one or more head parts (31) may be configured at one end.

[0071] Here, the head portion (31) may be structured such that, as shown in FIG. 2, the first head portion (31a), the second head portion (31b), the third head portion (31c), the fourth head portion (31d), and the fifth head portion (31e) are provided at regular intervals.

[0072] The fourth body part (40) is installed at the lower part of the second body part (20) and can perform the function of adjusting the spacing between one or more head parts (31), for example, in the present invention, the first head part (31a), the second head part (31b), the third head part (31c), the fourth head part (31d), and the fifth head part (31e).

[0073] Below, the detailed functions of each body part will be explained.

[0075] As shown in FIGS. 3 and 4, the first body part (10) is structured to be fixed to the taping device (1), and the second body part (20) and the third body part (30) may be structured to move in the first axial direction (X-axis).

[0076] This first body part (10) may be structured such that a cylinder (13) is installed on one side of the first body part (10), and a body transfer part (14) is installed on one side of the cylinder (13).

[0077] The body transfer unit (14) is connected to the lower part (15) of the second body unit, and when the body transfer unit (14) moves in the first axial direction (X-axis) due to the power movement of the cylinder (13), the second body unit (14) can be structured to move in the same direction as the power movement of the cylinder (13), and the second body unit (20) can be structured to move in the first axial direction (X-axis).

[0078] In addition, the first body part (10) is installed on one side, and a piston (11) installed on the upper part of the cylinder (13) may be further provided.

[0079] The piston (11) can perform the function of moving the shaft (12) connected to the piston (11) in the first axial direction (X-axis) based on the power motion provided by the cylinder (13).

[0080] Here, the shaft (12) is connected to the piston (11), and is structured such that one end is connected to the second body part (20), so that when the shaft (12) moves in the first axial direction (X-axis), the second body part (20) moves together.

[0081] The second body part (20) may further include a first roller support part (21) installed on one side of one or more guide roller parts (60) to support a tape placed on the guide roller part (60), thereby preventing the tape from getting wrinkled in some sections or the tape from deviating from the path.

[0082] The third body part (30) may further include a second roller support part (22) installed on one side of one or more guide roller parts (60) to support a tape placed on the guide roller part (60), thereby preventing the tape from getting wrinkled in some sections or the tape from deviating from the path.

[0083] The first roller support (21) and the second roller support (22) may be installed in at least one of the second body part (20) and the third body part (30). Although the present invention is illustrated as having one first roller support (21) and one second roller support (22) installed, it is not limited thereto and may be additionally installed depending on the external environment and the type of tape.

[0085] As illustrated in FIG. 5, the third body part (30) is provided with one or more head parts (31) at one end, and each head part (31) may be configured with a tape case (32), a cutting part (33), and a compression roller (34).

[0086] The tape case (32) can perform the function of casing the tape (T) being transferred to the head unit (31).

[0087] The cutting part (33) can perform the function of cutting the tape attached to the battery cell (c).

[0088] The compression roller (34) can compress the tape attached to the battery cell (c) to prevent the tape from detaching from the battery cell (c) in advance.

[0089] The fourth body part (40) is installed at the lower part of the second body part (20) and can perform the function of adjusting the spacing between one or more head parts (31), for example, in the present invention, the first head part (31a), the second head part (31b), the third head part (31c), the fourth head part (31d), and the fifth head part (31e). Specifically, it can adjust the spacing between the first head part (31a) and the second head part (31b) or the spacing between the fourth head part (31d) and the fifth head part (31e), respectively.

[0090] This fourth body part (40) may further include a control rod (41) and a spacing control member (42).

[0091] The adjustment rod (41) is installed on one side of the fourth body part (40) and can be configured in a frame shape to adjust the spacing between one or more head parts (31).

[0092] The spacing adjustment member (42) is provided to extend to the lower part of the head part (31) and is installed to wrap around the outer surface of the adjustment rod (41), so that the spacing adjustment member (42) moves through the adjustment rod (41), and the head part (31) can move in the second axial direction (Y-axis) through the adjustment rod (41) to perform the function of adjusting the spacing between one or more head parts.

[0093] That is, the fourth body part (40) can adjust the spacing between one or more head parts (31) through the spacing adjustment member (42).

[0095] As illustrated in FIG. 6, the structure may further include a cell mounting portion (70) capable of mounting a battery cell (c) and rotating the battery cell (c) 90 degrees, and may be configured such that taping devices (1) are provided on each side relative to the cell mounting portion (70), thereby enabling taping on each side of the battery cell (c) through the taping devices (1).

[0096] When the taping device (1) inputs attachment information including the number of tapes to be attached to one side of the battery cell (c) and the spacing between the tapes through a control means (not shown) that controls the taping device (1), it distinguishes between the head part (31) to be taped on the battery cell (c) and the head part (31) not to be used from one or more head parts (31), controls the head part (31) to be taped on the battery cell (c) in the first axial direction (X), and additionally controls the spacing adjustment member provided in each of the one or more head parts (31) to adjust the spacing between the head part (31) and another head part (31), and is described in detail with reference to the attached drawings as follows.

[0097] As illustrated in FIG. 7a, for example, assuming that the head portion (31) to be used in the first taping device (1a) is the first head portion (31a), the third head portion (31c), and the fifth head portion (31e), and assuming that the head portion to be used in the second taping device (1b) is the sixth head portion (31f), the seventh head portion (31g), and the ninth head portion (31i), the control means can control the above-mentioned first head portion (31a), third head portion (31c), fifth head portion (31e), sixth head portion (31f), seventh head portion (31g), and ninth head portion (31i) to have a structure that protrudes relatively more than the remaining head portions, and can attach the tape (T) to the battery cell (c) in the first step.

[0098] Afterward, the taping device (1a, 1b) can select at least one of the piston (11) or cylinder (13) as shown in FIG. 7b to retract the head portion (31) to a certain point, select the head portion (31) to be taped on the battery cell (c) based on pre-entered attachment information, and further adjust the spacing between the selected head portions (31). As described with reference to FIG. 7b, the first head portion (31a), the second head portion (31b), the fourth head portion (31d), the fifth head portion (31e), the sixth head portion (31f), and the tenth head portion (31j) are selected by the control means and controlled to protrude relatively more than the remaining head portions, and after adjusting the spacing between the head portions through the spacing adjustment member (42), as shown in FIG. 7c, after entering the battery cell (c), it can be attached to the battery cell (c) a second time.

[0099] Here, when selecting and adjusting the spacing of the head portion (31), the cell mounting portion (70) can be configured to rotate the cell mounting portion (70) 90 degrees in one direction so that the unattached surface of the battery cell (c) is positioned in the head portion.

[0100] Accordingly, as illustrated in FIG. 7d when described based on the above-described embodiment, each attached surface of the battery cell (c) may have a different number of attached tapes and a different spacing between tapes.

[0102] That is, according to one embodiment of the present invention, the number of tapes attached to one side of a battery cell and the spacing between the tapes can be attached differently on each side, so that taping work is possible even if the types of battery cells are different.

[0104] Although the present invention has been described in detail through an exemplary embodiment, this is intended to specifically explain the invention, and the taping device for a secondary battery according to the present invention is not limited thereto. Furthermore, terms such as "include," "compose," or "have," as described above, mean that the corresponding component may be inherent unless specifically stated otherwise; thus, they should be interpreted as allowing for the inclusion of additional components rather than excluding other components. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as generally understood by those skilled in the art to which the present invention belongs.

[0105] Furthermore, the foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0107] 1 - Taping device 10 - First body part 11 - Piston 12 - Shaft 13 - Cylinder 14 - Body transfer section 15 - Lower part of the second body 20 - Second body 21 - 1st roller support 22 - 2nd roller support 30 - 3rd body part 31 - Head part 32 - Tape case 33 - Cutting section 34 - Compression roller 40 - 4th body part 41 - Adjustment rod 42 - Spacing adjustment member 50 - Tape feed section 60 - Guide roller section 70 - Cell mounting section C - Battery cell T-Tape

Claims

Claim 1 A device for taping multiple battery cells comprises: a cell mounting portion having a space for mounting multiple battery cells and rotating 90 degrees in one direction; and a taping device provided near the cell mounting portion for taping the battery cells; wherein the taping device comprises: one or more tape supply portions provided with tape; a first body portion provided below the tape supply portion and fixing the tape supply portion; a second body portion provided below the tape supply portion and on one side of the first body portion, comprising one or more guide roller portions for transporting tape supplied from the tape supply portion; and a third body portion provided on one side of the second body portion, comprising one or more head portions for taping the battery cells and one or more guide roller portions for transporting tape supplied from the tape supply portion; wherein the second body portion comprises a body transport portion connected to the lower part of the second body portion and moving the second body portion in a first axial direction (X-axis). It includes, wherein the first body part is installed on one side of the first body part and is connected to one side of the body transfer part and provides power to move the body transfer part; and a piston installed on one side of the first body part and installed on the upper part of the cylinder, which moves a shaft installed in the second body part in both directions to move the second body part.A device comprising: a cylinder, a body transfer unit, a piston, and a shaft, each installed in one or more head units; wherein, when attachment information including the number of tapes to be attached to one side of the battery cell and the spacing between tapes is input through a control means controlling the taping device, the head unit to be taped to the battery cell and the head unit not to be used are distinguished in the one or more head units, and the head unit to be taped to the battery cell is controlled in a first axial direction (X-axis); wherein taping devices are each provided on both sides based on the cell mounting unit; and the battery cell first attaches a tape through the one or more head units based on the attachment information input through the control means, and after the cell mounting unit rotates 90 degrees in one direction to set the unattached side to the taping device, a tape is secondarily attached through the one or more head units based on the attachment information input through the control means. Claim 2 The device according to claim 1, wherein the tape supply unit is configured to correspond to each of the one or more head units. Claim 3 The device according to claim 1, wherein the second body part comprises a first roller support part installed on one side of a guide roller part installed in the second body part and supporting a tape disposed in the guide roller part; and wherein at least one first roller support part is installed in the second body part. Claim 4 The device according to claim 1, wherein the third body part comprises a second roller support part installed on one side of a guide roller part installed on the third body part and supporting a tape disposed on the guide roller part, and wherein the second roller support part is installed at least one by one on the third body part. Claim 5 The device according to claim 1, wherein the head portion further comprises: a tape case for casing a tape conveyed through the second body portion and one or more guide roller portions installed on the second body portion; a tape cutting portion for cutting the tape; and a compression roller for compressing the tape attached to the battery cell. Claim 6 The apparatus of claim 1, further comprising: a fourth body part installed at the lower part of the second body part and adjusting the spacing between one or more head parts installed in the third body part. Claim 7 The apparatus according to claim 6, further comprising: a fourth body portion, a adjusting rod installed on one surface of the fourth body portion and adjusting the spacing between one or more head portions; and a spacing adjusting member provided to extend to the lower portion of the head portion, installed on the adjusting rod, wherein the head portion moves in a second axial direction (Y-axis) through the adjusting rod to adjust the spacing between one or more head portions. Claim 8 In claim 7, the taping device controls the spacing adjustment member provided in each of the one or more head parts to adjust the spacing between the head part and another head part when the attachment information is input to the control means. Claim 9 delete

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