Battery cell label attachment apparatus and method

Abstract

The present invention relates to a battery cell label attachment apparatus and method using air injection and a side block in order to ensure uniform attachment quality of a label (L) that is to be attached to the outer circumferential surface of a battery cell (B). The battery cell label attachment apparatus according to an embodiment of the present invention comprises: a cell mounting part for mounting a battery cell (B), and attaching a label (L) to the front surface of the battery cell (B); an air injection part that injects air upward by being formed on the bottom surface of the cell mounting part on which the battery cell (B) is mounted; a pressing block that presses the label (L) by horizontally moving from both sides of the cell mounting part toward both side surfaces of the battery cell (B); and a roller part horizontally moving on the upper surface of the battery cell (B), and coming into close contact therewith such that a portion of the label (L) becomes attached to the upper surface of the battery cell (B).

Description

Label attachment device and method for battery cells

[0001] The present invention relates to a label attachment device and method for battery cells, and more particularly, to a label attachment device and method for battery cells capable of attaching labels to a constant surface regardless of tolerance using air injection and side blocks.

[0002] Secondary batteries, used as energy sources for various electronic devices, are widely used in mobile devices and electric vehicles. Small devices, in particular, contain numerous battery cells, which are broadly categorized by their external shape into cylindrical, prismatic, and pouch-shaped batteries.

[0003] The exterior of a battery cell displays various information about the battery, such as the manufacturer, model name, product number, various specifications or quality marks, and precautions for use, in the form of text or marks. This information is typically printed on a label affixed to the surface of the battery cell.

[0004] These labels can be manufactured from regular paper, vinyl-coated paper, polymer resin material, thin-film metal material, etc., and an adhesive is applied to the back of the label so that it can be attached to a battery cell in the form of a sticker.

[0005] Fig. 1 is a schematic diagram illustrating an attachment process using a conventional label attachment device for a battery cell, and Figs. 2(a) to (d) are diagrams for explaining in detail an attachment process using the attachment means of Fig. 1.

[0006] As illustrated in Fig. 1, a label attachment device generally used in an automated production line attaches a label (L) to a battery cell (B) through a series of automated processes. That is, the label (L) brought from the label supply means (10) is peeled off from the backing paper (La), prepared as a single sheet on the label preparation means (20), and then transferred to the attachment means (30) so that it can be attached to the battery cell (B), which is the attachment target.

[0007] As shown in Fig. 2(a), the attachment means (30) is put into the process with the label (L) attached to the front surface of the battery cell (B) placed on the lifter (32). Then, as shown in Fig. 2(b), the lifter (32) lowers (or rises) and stores the battery cell (B) into the receiving space provided in the jig (33). At this time, while the battery cell (B) is stored into the receiving space of the jig (33), the battery cell (B) passes between the two attachment rollers (31a) (32b), and the two attachment rollers (31a) (32b) attach the label (L) while pressing it against the side surface of the battery cell (B). Then, when the lowering (or rising) of the lifter (32) is completed, the jig (33) folds and attaches the label (L) along the outer surface of the battery cell (B) stored in the receiving space. Next, as shown in Fig. 2(c), while the jig (33) holds the battery cell (B), it moves horizontally toward the attachment roller (31b) on one side, and a part of the label (L) is attached to the upper side of the battery cell (B) by the attachment roller (31b) on one side. Finally, as shown in Fig. 2(d), while the jig (33) holds the battery cell (B), it moves horizontally toward the attachment roller (31a) on the other side, and the remaining part of the label (L) is attached to the upper side of the battery cell (B) by the attachment roller (31a) on the other side, thereby completing the attachment of the label (L).

[0008] However, this conventional battery cell label attachment device has a problem in that, when the battery cell (B) is accommodated in the receiving space of the jig (33) and the label (L) is folded and attached to the side of the battery cell (B), the folding and attachment of the label (L) is not uniform due to a tolerance between the receiving space (or the two attachment rollers (31a) (32b)) and the battery cell (B). That is, there is a problem in that the label (L) does not adhere closely to the side of the battery cell (B) due to the tolerance that has occurred. Accordingly, there is a problem in that label (L) wrinkles occur in the label (L) attached to the side of the battery cell (B).

[0009] In addition, since the label (L) attached to the side of the battery cell (B) is not adhered, the label (L) having a plate shape causes distortion from left to right, and even when it is adhered to the upper side of the battery cell (B) by two attachment rollers (31a) (32b), there is a problem in that wrinkles are generated.

[0010]

[0011] In relation to prior art, the following prior arts are known.

[0012] (Patent Document 1) Korean Patent Publication No. 10-1502783 (Registration Date: March 10, 2015)

[0013] (Patent Document 2) Korean Patent Publication No. 10-1897265 (Registration Date: September 4, 2018)

[0014] The present invention provides a label attachment device and method for battery cells, which secure uniform attachment quality of a label (L) attached to the outer surface of a battery cell (B) using air injection and a side block. This enables the label (L) attached to the outer surface of a battery cell (B) to be attached without wrinkles to a constant surface, regardless of the receiving space of a jig or the tolerance between two attachment rollers (31a) (32b) and the battery cell (B).

[0015] According to an embodiment of the present invention, a label attachment device for a battery cell includes a cell holder for attaching a battery cell (B) and attaching a label (L) to the front of the battery cell (B), an air injection unit formed on the bottom surface of the cell holder on which the battery cell (B) is placed and for injecting air upward, a pressure block for pressing the label (L) by moving horizontally in the direction of both sides of the battery cell (B) from both sides of the cell holder, and a roller unit for pressing a portion of the label (L) so as to be attached to the upper surface of the battery cell (B) while moving horizontally on the upper surface of the battery cell (B).

[0016] The above cell holder adjusts the position of the label (L) so that the center of the label (L) being transferred is aligned with the front center of the battery cell (B).

[0017] The above air injection unit includes at least two air injection holes and injects air toward the battery cell (B) from both sides of a label (L) attached to the front of the battery cell (B).

[0018] The above air nozzles are positioned at intervals that are wider than a predetermined distance than the width of the battery cell (B).

[0019] The above air nozzle is configured to protrude a predetermined height from the bottom surface of the cell holder.

[0020] Preferably, the bottom surface of the cell holder further includes at least one lifting protrusion between the air injection unit and the side surface of the battery cell (B).

[0021] The above-mentioned pressurizing block is moved horizontally in a straight line to both sides of the battery cell (B) through a driving means using an elastic body, and directly applies pressure so that the folded label (L) is attached to the side of the battery cell (B).

[0022] The upper surface of the above pressurized block is positioned on a plane at the same height as the upper surface of the battery cell (B).

[0023] The above pressurized block is configured with a guide rail / guide groove to enable sliding on the bottom surface of the cell holder.

[0024] The above pressurized block comprises at least one movable groove at the lower end.

[0025] The above roller unit includes at least two attachment rollers, and moves linearly back and forth on the upper surface of the battery cell (B) to attach the label (L) to the upper surface of the battery cell (B).

[0026] A method for attaching a label to a battery cell according to an embodiment of the present invention comprises the steps of: (A) attaching a label (L) to the front center of a battery cell (B) after attaching a battery cell (B) transferred from a battery cell input means to a cell holder (410); (B) lifting both sides of a label (L) attached to the front of a battery cell (B) toward the battery cell (B) by injecting air from an air injection port formed on the bottom surface of the cell holder; (C) attaching the label (L) to the side of the battery cell (B) by directly applying pressure to the side label (L) of the battery cell (B) by a pressure block from both sides of the battery cell (B) toward the center; and (D) attaching the label (L) lifted to the side of the battery cell (B) to the side of the battery cell (B) while an attachment roller moves horizontally on the upper surface of the battery cell (B).

[0027] The above process (A) includes a process of adjusting the position of the label (L) so that the center of the label (L) transferred through the label supply means is aligned with the center of the upper surface of the battery cell (B).

[0028] The above process (C) moves the pressurized block horizontally in a straight line to both sides of the battery cell (B) using a driving means using an elastic body.

[0029] The above process (D) attaches the lifted label (L) to the upper surface of the battery cell (B) while the attachment roller moves horizontally while the battery cell (B) is fixed.

[0030] The above process (D) is performed by horizontally moving simultaneously or sequentially toward the center from both sides of the battery cell (B) to which two attachment rollers are directly fixed.

[0031] The above process (D) attaches the lifted label (L) to the upper surface of the battery cell (B) while the battery cell (B) moves horizontally while the attachment roller is fixed.

[0032] The above process (D) includes a process in which, while the two first and second attachment rollers are fixed, the battery cell (B) moves horizontally in the direction of the first attachment roller located on one side, and a part of the label (L) is attached to the upper part of the battery cell (B) by the first attachment roller, and a process in which, while the two first and second attachment rollers are fixed, the battery cell (B) moves horizontally in the direction of the second attachment roller located on the other side, and a part of the label (L) is attached to the upper part of the battery cell (B) by the second attachment roller.

[0033] According to an embodiment of the present invention, it is possible to ensure uniform attachment quality of a label (L) attached to the outer surface of a battery cell (B). To this end, air injection and side blocks are used to ensure that the label (L) attached to the outer surface of the battery cell (B) can be attached without wrinkles to a constant surface regardless of the tolerance between the jig's receiving space or the two attachment rollers (31a) (32b) and the battery cell (B).

[0034] Figure 1 is a schematic diagram showing an attachment process using a conventional label attachment device for battery cells.

[0035] Figures 2(a) to (d) are drawings for explaining in detail the attachment process using the attachment means of Figure 1.

[0036] Figure 3 is a drawing showing the configuration of a label attachment device for a battery cell according to an embodiment of the present invention.

[0037] Fig. 4 is a drawing showing in detail the configuration of the label attachment means of Fig. 3.

[0038] Figure 5 is a flowchart for explaining a method for attaching a label to a battery cell according to an embodiment of the present invention.

[0039] FIGS. 6(a) to 6(d) are drawings for explaining a label attachment process for a battery cell according to an embodiment of the present invention.

[0040] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments of the present invention are provided solely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. For the purpose of explaining the invention in detail, the drawings may be exaggerated, and like reference numerals throughout the drawings represent like elements.

[0041] Fig. 3 is a drawing showing the configuration of a label attachment device for a battery cell according to an embodiment of the present invention. Fig. 4 is a drawing showing in detail the configuration of the label attachment means of Fig. 3.

[0042] Referring to FIG. 3, a label attachment device for a battery cell according to an embodiment of the present invention includes a label supply means (100), a label alignment means (200), a battery cell input means (300), a label attachment means (400), and a battery cell discharge means (500).

[0043] The label supply means (100) moves the release liner formed in the form of a continuous sheet to the label (L) adsorption position of the label attachment means (400) set in advance. At this time, the label supply means (100) performs a linear reciprocating motion in the entry direction (forward direction) of the label (L) and in the opposite direction (backward direction) to support the lower part of the release liner entering when the label (L) enters, and moves the release liner from which the label (L) is separated backward in the backward direction to separate the label (L) from the release liner during the entry process.

[0044] As one embodiment, the label supply means (100) includes a plurality of rollers installed in the upper, lower, left, and right directions to stably move a transfer sheet having a label (L) attached to the upper surface thereof, and each of these rollers is connected to a driving motor through a plurality of rollers, or moves the transfer sheet by an independently installed motor. In addition, the label supply means (100) separates a portion of the label (L) attached to the transfer sheet being moved, for example, about 35 mm, from the transfer sheet, and forcibly feeds the label (L) so that the label (L) separated from the transfer sheet can be stably absorbed by the label attachment means (400) and accurately enters the label absorption position. To this end, the label supply means (100) may include a plurality of rollers that rotate by a rotational shaft that is rotated by a motor. At this time, the plurality of rollers are mutually spaced apart from each other on a rotational shaft that is axially coupled to the motor and serve to support the label (L) by contacting the label (L), and the rotational shaft is rotatably coupled to the main body so that the plurality of rollers can perform a rolling motion.

[0045] The label alignment means (200) places a label (L) separated from the transfer area on a label alignment frame with one side open. At this time, the label alignment means (200) may include a label alignment bar that linearly reciprocates toward the open portion of the label alignment frame so that the center of the label (L) is positioned at the center of the label alignment frame, thereby aligning the width of the label (L) in the amplitude direction. The label alignment bar is coupled to a pneumatic or hydraulic cylinder and linearly reciprocates.

[0046] The battery cell input means (300) vacuum-absorbs battery cells (B) sequentially supplied through a linear reciprocating conveyor and transfers them to the label attaching means (400). As one embodiment, the battery cell input means (300) may include a transfer guide installed in a direction perpendicular to the conveyor, and a transfer pad that vacuum-absorbs battery cells (B) supplied through the conveyor by linear reciprocating along the transfer guide and transfers them to the label attaching means (400).

[0047] The label attachment means (400) attaches a label (L) to the front of the battery cell (B), and lifts the side label (L) of the battery cell (B) using air sprayed toward the battery cell (B) on both sides of the label (L) attached to the front of the battery cell (B), and then pressurizes the label (L) to attach the label (L) to the outer surface of the battery cell (B).

[0048] Referring to FIG. 4, the label attachment means (400) includes a cell holder (410) that holds a battery cell (B) and attaches a label (L) to the front of the battery cell (B), an air injection unit (420) that is formed on the bottom surface of the cell holder (410) on which the battery cell (B) is held and has a pair of air injection holes (420a) (420b) that spray air upward, two pressure blocks (430a) (430b) that move horizontally in the direction of both sides of the battery cell (B) from both sides of the cell holder (410) to press the label (L), and a roller unit (440) that has at least one attachment roller (440a) (440b) that moves horizontally on the upper surface of the pressure blocks (430a) (430b) and the upper surface of the battery cell (B) so that a part of the label (L) is attached to the upper surface of the battery cell (B).

[0049] The cell holder (410) is installed horizontally on the same line as the label supply means (100), and adjusts the position of the label (L) so that the center of the label (L) being transported is aligned with the front center of the battery cell (B).

[0050] The air injection unit (420) includes at least two air injection holes (420a) (420b) and injects air from both sides of a label (L) attached to the front of the battery cell (B) toward the battery cell (B). The air injection holes (420a) (420b) are positioned at a distance that is wider than a predetermined distance than the width of the battery cell (B). The air injection unit (420) is configured to protrude from the bottom surface of the cell holder (410) by a predetermined height. The air injection unit (420) is configured to protrude by a predetermined height so that the side surface of the label (L) attached to the front surface of the battery cell (B) can be spaced apart from the bottom surface of the cell holder (410) by a predetermined height. This allows the side surface of the label (L) to be easily bent toward the battery cell (B) due to the air injected from the air injection unit (420).

[0051] At this time, the air injection unit (420) may not protrude to a predetermined height, and instead, a lifting protrusion (450) may be additionally configured on the bottom surface of the cell holder (410). At least one lifting protrusion (450) may be configured between the air injection unit (420) and the side surface of the battery cell (B). The lifting protrusion (450) allows the side surface of the label (L) attached to the front surface of the battery cell (B) to be maintained in a state of being raised to a predetermined height, so that the side surface of the label (L) can be easily bent toward the battery cell (B) due to the air injected from the air injection unit (420).

[0052] In this way, by configuring the lifting protrusion (450) or / and the air injection portion (420) to protrude to a predetermined height, when the label (L) is folded to both sides of the battery cell (B), it is possible to more closely adhere to the side of the battery cell (B), thereby suppressing the occurrence of wrinkles in the label (L) and preventing the occurrence of air bubbles or the like between the label (L) and the battery cell (B).

[0053] For reference, when the air injection part (420) is configured to protrude to a predetermined height and the lifting projection (450) is configured at the same time, the lifting projection (450) is configured to be higher than the protrusion height of the air injection port (420a)(420b) so that the label near the battery cell has an 'S' shape that is higher than the end side (the lifting projection (450) side). This can enable the label (L) to be more closely attached to the side of the battery cell when the label (L) is folded to both sides of the battery cell (B), thereby suppressing the occurrence of wrinkles in the label and more effectively preventing the occurrence of air bubbles between the label and the battery cell.

[0054] The pressurizing block (430) is a means for pressurizing the label (L) on both sides of the battery cell (B), and is placed on each side of the battery cell (B) where the air injection unit (420) is located, and directly pressurizes the folded label (L) so that it is horizontally moved in a straight line to both sides of the battery cell (B) through a driving means (431) using an elastic body such as a spring so that the label (L) is attached to the side of the battery cell (B). In this way, since both sides of the battery cell (B) are directly pressed through the pressurizing block (430), the side portions of the battery cell (B) can be uniformly attached without being affected by tolerance.

[0055] At this time, the upper surface of the pressure block (430) is configured to be positioned on a plane at the same height as the upper surface of the battery cell (B). In addition, the pressure block (430) may be configured with a guide rail / guide groove so that it can easily slide on the bottom surface of the cell holder (410). In addition, when the pressure block (430) slides in close contact with the bottom surface of the cell holder (410), at least one moving groove may be configured at a corresponding position on the lower portion of the pressure block (430) to prevent the bottom surface of the cell holder (410) from coming into contact with the protruding air injection portion (420) and lifting projection (450).

[0056] The roller unit (440) comprises at least two attachment rollers (440a) (440b), and moves back and forth linearly on the upper surface of the battery cell (B) to attach the label (L) to the upper surface of the battery cell (B). The roller unit (440) attaches the left and right labels (L) protruding from the upper surface of the battery cell (B) to the upper surface of the battery cell (B) by moving the attachment rollers (440a) (440b) linearly back and forth in the left and right directions.

[0057] And finally, the battery cell discharge means (500) is located at the rear end of the label attachment means (400) and discharges the battery cell (B) with the label (L) attached to the outside.

[0058] Meanwhile, the label attachment device for a battery cell according to an embodiment of the present invention may further include a position alignment sensor (not shown) installed between the label alignment means (200) and the label attachment means (400) to sense the distance between the label (L) and the label attachment position in order to transfer the transported label (L) to an accurate label attachment position.

[0059]

[0060] Hereinafter, a method for attaching a label to a battery cell according to an embodiment of the present invention will be described. The method for attaching a label to a battery cell according to an embodiment of the present invention may be a method for processing a signal received using the aforementioned battery cell label attaching device. Accordingly, the aforementioned content regarding the battery cell label attaching device can be applied as is, and thus, a description of redundant content may be omitted.

[0061] FIG. 5 is a flowchart for explaining a method for attaching a label to a battery cell according to an embodiment of the present invention, and FIGS. 6(a) to 6(d) are drawings for explaining a process for attaching a label to a battery cell according to an embodiment of the present invention.

[0062] Referring to FIGS. 5 and 6, a method for attaching a label to a battery cell according to an embodiment of the present invention is described as follows.

[0063] As illustrated in Fig. 6(a), after the battery cell (B) transferred from the battery cell input means (300) is placed on the cell holder (410), the label (L) transferred through the label supply means (100) is attached to the center of the front surface of the battery cell (B) (S10). The battery cell (B) with the label (L) attached to the front surface is positioned above the cell holder (410). At this time, the position of the label (L) can be adjusted so that the center of the label (L) transferred through the label supply means (100) is aligned with the center of the upper surface of the battery cell (B).

[0064] Next, as illustrated in Fig. 6(b), air is injected from the air injection holes (420a)(420b) formed on the bottom surface of the cell holder (410), thereby folding both sides of the label (L) attached to the front of the battery cell (B) toward the battery cell (B) (S20). That is, air is injected from the front to the rear of the battery cell (B), thereby lifting the labels (L) on both sides of the battery cell (B).

[0065] At this time, the air injection holes (420a)(420b) are configured to protrude from the bottom surface of the cell holder (410) by a predetermined height, so that the side surface of the label (L) attached to the front surface of the battery cell (B) can be spaced apart from the bottom surface of the cell holder (410) by a predetermined height. This allows the side surface of the label (L) to be easily bent toward the battery cell (B) due to the air injected from the air injection holes (420a)(420b). Alternatively, the cell holder (410) is configured with at least one lifting protrusion (450a) (450b) additionally between the air injection port (420a) (420b) and the side of the battery cell (B) as the bottom surface on which the battery cell (B) is mounted, so that the side of the label (L) attached to the front of the battery cell (B) is maintained in a state of being raised to a predetermined height, and similarly, the side of the label (L) can be more easily bent toward the battery cell (B) due to the air injected from the air injection port (420a) (420b).

[0066] Next, as illustrated in FIG. 6(c), the pressure block (430) directly presses the side label (L) of the battery cell (B) toward the center on both sides of the battery cell (B) to attach the label (L) to the side of the battery cell (B) (S30). In this way, since the both sides of the battery cell (B) are directly pressed by the pressure block (430), the side portion of the battery cell (B) can be uniformly attached without being affected by tolerance. The pressure block (430) moves horizontally in a straight line to both sides of the battery cell (B) using a driving means (431) using an elastic body such as a spring, and presses the bent label (L) to both sides of the battery cell (B).

[0067] And as illustrated in Fig. 6(d), the label (L) lifted on the side of the battery cell (B) is attached to the upper surface of the battery cell (B) as the attachment roller (440a)(440b) moves horizontally on the upper surface of the battery cell (B) (S40). At this time, the attachment roller (440a)(440b) can attach the left and right labels (L) protruding from the upper surface of the battery cell (B) to the upper surface of the battery cell (B) by making a linear reciprocating motion in the left and right direction.

[0068] Meanwhile, the S40 process can attach the lifted label (L) to the upper surface of the battery cell (B) while the attachment roller (440a) (440b) moves horizontally while the battery cell (B) is fixed, or can attach the lifted label (L) to the upper surface of the battery cell (B) while the battery cell (B) moves horizontally while the attachment roller (440a) (440b) is fixed.

[0069] For example, when two attachment rollers (440a) (440b) are simultaneously horizontally moved from both sides of a battery cell (B) to which they are directly fixed toward the center, the label (L) is simultaneously attached to the upper part of the battery cell (B). However, the two attachment rollers (440a) (440b) may be sequentially attached in such a manner that the left attachment roller (440a) first moves from the left to the center, attaches the left label (L) to the upper part of the battery cell (B), and then the right attachment roller (440a) moves from the right to the center, attaches the right label (L) to the upper part of the battery cell (B).

[0070] As another example, when two attachment rollers (440a) (440b) are fixed, a battery cell (B) moves horizontally toward the attachment roller (440a) located on one side, and a part of the label (L) is attached to the upper part of the battery cell (B) by the attachment roller (440a) on one side while being pressed against the upper part of the battery cell (B). Thereafter, when the battery cell (B) moves horizontally toward the attachment roller (440b) located on the other side, a part of the label (L) is attached to the upper part of the battery cell (B) by the attachment roller (440b) on the other side while being pressed against the upper part of the battery cell (B).

[0071] When the label attachment process for the battery cell is completed, the battery cell with the label (L) attached is discharged to the outside through the battery cell discharge means (500).

[0072]

[0073] While the preferred embodiments of the present invention have been described and illustrated using specific terms above, such terms are solely for the purpose of clearly describing the present invention, and it is to be understood that various modifications and variations may be made to the embodiments and terms described herein without departing from the spirit and scope of the appended claims. Such modified embodiments should not be construed individually from the spirit and scope of the present invention, but should be considered to fall within the scope of the claims.

[0074] The symbols and names of each component used in the specification and drawings of the present invention are as follows.

[0075] B: Battery cell L: Label

[0076] 100: Label supply means 200: Label alignment means

[0077] 300: Battery cell insertion means 400: Label attachment means

[0078] 410: Cell holder 420: Air injection unit

[0079] 420a, 420b: Air nozzle 430a, 430b: Pressurized block

[0080] 440: Roller section 440a, 440b: Attachment roller

[0081] 500: Battery cell discharge means

Claims

1. In a label attachment device for battery cells, A cell holder that holds a battery cell (B) and attaches a label (L) to the front of the battery cell (B), An air injection unit formed on the bottom surface of the cell holder where the above battery cell (B) is placed, and injecting air upward; A pressure block that moves horizontally toward both sides of the battery cell (B) on both sides of the above cell holder to pressurize the label (L), A label attachment device for a battery cell, comprising a roller unit that moves horizontally on the upper surface of the battery cell (B) and adheres a portion of the label (L) to the upper surface of the battery cell (B).

2. In paragraph 1, The above cell holder is a label attachment device for a battery cell that adjusts the position of the label (L) so that the center of the label (L) being transferred is aligned with the front center of the battery cell (B).

3. In paragraph 1, The above air injection unit, A label attachment device for a battery cell, comprising at least two air nozzles, which injects air toward the battery cell (B) from both sides of a label (L) attached to the front of the battery cell (B).

4. In paragraph 3, The above air nozzles are a label attachment device for battery cells, which are positioned at intervals that are wider than a predetermined interval than the width of the battery cells (B).

5. In paragraph 3, A label attachment device for a battery cell, wherein the air nozzle is configured to protrude a predetermined height from the bottom surface of the cell holder.

6. In paragraph 1 or paragraph 5, A label attachment device for a battery cell, further comprising at least one lifting protrusion on the bottom surface of the cell holder, between the air injection unit and the side surface of the battery cell (B).

7. In paragraph 1, The above-mentioned pressure block is a label attachment device for a battery cell that directly applies pressure so that a folded label (L) is attached to the side of the battery cell (B) by moving horizontally in a straight line to both sides of the battery cell (B) through a driving means using an elastic body.

8. In paragraph 1, A label attachment device for a battery cell, wherein the upper surface of the above pressurized block is positioned on a plane at the same height as the upper surface of the battery cell (B).

9. In paragraph 1, The above pressurized block is a label attachment device for a battery cell that forms a guide rail / guide groove so that it can slide on the bottom surface of the cell holder.

10. In paragraph 6, The above pressurized block is a label attachment device for a battery cell, which comprises at least one movable groove at the lower part.

11. In paragraph 1, A label attachment device for a battery cell, wherein the roller section includes at least two attachment rollers and performs a linear reciprocating motion on the upper surface of the battery cell (B) to attach a label (L) to the upper surface of the battery cell (B).

12. In the method of attaching a label for a battery cell, (A) A process of placing a battery cell (B) transferred from a battery cell input means on a cell holder (410), and then attaching a label (L) transferred through a label supply means to the front center of the battery cell (B), (B) A process of lifting both sides of a label (L) attached to the front of a battery cell (B) toward the battery cell (B) by spraying air from an air nozzle formed on the bottom surface of the cell holder, (C) A process in which a pressure block directly presses the side label (L) of the battery cell (B) toward the center on both sides of the battery cell (B) to attach the label (L) to the side of the battery cell (B), (D) A label attachment method for a battery cell, comprising a process of attaching a label (L) lifted on the side of the battery cell (B) to the upper surface of the battery cell (B) while the attachment roller moves horizontally.

13. In paragraph 12, A label attachment device for a battery cell, wherein the above process (A) further includes a process of adjusting the position of the label (L) so that the center of the label (L) transferred through the label supply means is aligned with the center of the upper surface of the battery cell (B).

14. In paragraph 12, The above process (C) is a method for attaching a label to a battery cell by moving the pressurized block horizontally in a straight line to both sides of the battery cell (B) using a driving means using an elastic body.

15. In paragraph 12, The above process (D) is, A method for attaching a label for a battery cell, wherein the label (L) is lifted and attached to the upper surface of the battery cell (B) while the attachment roller moves horizontally while the battery cell (B) is fixed.

16. In paragraph 15, The above process (D) is, A method for attaching a label to a battery cell, wherein two attachment rollers are directly fixed to the battery cell (B) and horizontally move simultaneously or sequentially toward the center from both sides.

17. In paragraph 12, The above process (D) is, A method for attaching a label to a battery cell, wherein the label (L) is lifted and attached to the upper surface of the battery cell (B) while the battery cell (B) moves horizontally while the attachment roller is fixed.

18. In paragraph 17, The above process (D) is, In a state where the two first and second attachment rollers are fixed, a process in which a portion of the label (L) is attached to the upper portion of the battery cell (B) by the first attachment roller while the battery cell (B) moves horizontally in the direction of the first attachment roller located on one side; A method for attaching a label to a battery cell, comprising a process in which a portion of a label (L) is attached to the upper portion of the battery cell (B) by the second attachment roller while the battery cell (B) moves horizontally in the direction of the second attachment roller located on the other side while the two first and second attachment rollers are fixed.

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