KR20240007503A - Stack cell taping device - Google Patents

Abstract

The present invention discloses a stack cell taping device. The stack cell taping device 100 of the present invention includes: a suction body portion 110 to which the tape 20 is adsorbed; A center guide unit 130 installed on one side of the stack cell 10 to enable thickness adjustment; a driving unit 150 that adjusts the thickness of the center guide unit 130 to be the same as the thickness of the stack cell 10; At least one first taping lever unit 160 supported on one surface of the center guide unit 130 and attaching the tape 20 adsorbed to the suction body unit 110 to one surface of the stack cell 10 ; and at least one second taping lever unit 170 supported on the other surface of the center guide unit 130 and attaching the tape 20 adsorbed to the suction body unit 110 to the other surface of the stack cell 10. ); includes.

Description

Stack cell taping device {STACK CELL TAPING DEVICE}

The present invention relates to a stack cell taping device that can prevent damage to the stack cell or folding of the separator.

Generally, secondary batteries include an anode, a cathode, and an electrolyte, and generate electrical energy using a chemical reaction. The use of secondary batteries is gradually increasing due to the advantage of being able to charge and discharge. Among such secondary batteries, lithium secondary batteries have a high energy density per unit weight, so they are widely used as a power source for electronic communication devices or as a driving source for high-output hybrid vehicles and electric vehicles.

In terms of the shape of these secondary batteries, demand is increasing for prismatic secondary batteries and pouch-shaped secondary batteries that can be applied to products such as mobile phones due to their thin thickness. In terms of secondary battery materials, demand for lithium secondary batteries such as lithium-ion batteries and lithium-ion polymer batteries with high energy density, discharge voltage, and output stability is increasing.

Unit cells for secondary batteries can be manufactured by lamination and stacking methods. The lamination stacking method manufactures stack cells with the desired shape and desired capacity in a short time. That is, in a laminator, a monocell is manufactured by cutting an electrode sheet to form an electrode, stacking an electrode and a separator sheet, and then cutting the separator sheet. The monocells produced in this way are loaded into magazines in units of hundreds and supplied to the stacking unit. A plurality of mono cells supplied to the stacking unit are stacked according to the designed capacity and then aligned to manufacture stack cells. At this time, the taping device performs taping to fix the alignment of the plurality of mono cells in the stack cell.

However, in the related art, if a taping device collides with the corner of the stack cell when taping the stack cell, the corner of the stack cell may be broken and damaged, or the separator of the stack cell may be folded, which may cause defects. If the stack cell is damaged or the separator is folded, the secondary battery may overheat or ignite during the subsequent process of activation fixation or use of the secondary battery.

The background technology of the present invention is disclosed in Republic of Korea Patent Publication No. 2262436 (announcement on June 9, 2021, title of the invention: Battery cell side taping device).

The present invention was developed to solve the above-mentioned problems, and can prevent electrodes from being damaged at the side edges of the stack cell. The purpose is to provide a stack cell taping device.

Another object of the present invention is to provide a stack cell taping device that can prevent the separator from being pushed and folded at the corners of the stack cell by the first taping lever or the second taping lever.

Another object of the present invention is to provide a stack cell taping device that can prevent the first taping roller and the second taping roller from colliding with the corners of the stack cell.

Additionally, the purpose of the present invention is to provide a stack cell taping device that can prevent the alignment of stack cells from being disturbed.

Additionally, the present invention aims to provide a stack cell taping device that can significantly reduce the possibility of ignition during the activation process or use of a battery cell.

The technical problems of the present invention are not limited to the purposes mentioned above, and other purposes and advantages of the present invention that are not mentioned can be understood through the following description and will be more clearly understood by the examples of the present invention. . Additionally, it will be readily apparent that the objects and advantages of the present invention can be realized by the means and combinations thereof indicated in the patent claims.

In order to solve the above-described problem, the stack cell taping device of the present invention includes: a suction body portion to which the tape is adsorbed; A center guide portion installed on one side of the stack cell to enable thickness adjustment; a driving unit that adjusts the thickness of the center guide portion to be the same as the thickness of the stack cell; At least one first taping lever part supported on one surface of the center guide part and attaching the tape adsorbed to the suction body part to one surface of the stack cell; and at least one second taping lever unit supported on the other surface of the center guide unit and attaching the tape adsorbed to the suction body unit to the other surface of the stack cell.

The suction body portion includes a first suction block disposed on one side of the center guide portion and adsorbing the tape; and a second suction block disposed on the other side of the center guide unit and adsorbing the tape together with the first suction block.

The center guide portion includes a first center guide that supports the first taping lever portion and is disposed on one side of the suction body portion; and a second center guide that supports the second taping lever unit, is disposed opposite to the first center guide, and moves together with the first center guide to correspond to the thickness of the stack cell.

One surface of the first center guide may form a first flat part, and the other surface of the second center guide may form a second flat part.

An anodizing layer may be coated on the surfaces of the first center guide and the second center guide.

The first taping lever unit includes a first fixing lever fixed to the suction body unit; a first pivot lever rotatably coupled to the first fixing lever; a first elastic member connected to the first fixing lever and the first pivot lever to press the first pivot lever toward the first center guide; and a first taping roller supported by the first center guide and attaching the tape to the stack cell when the suction body part moves.

The second taping lever unit includes a second fixing lever fixed to the suction body unit; a second pivot lever rotatably coupled to the second fixing lever; a second elastic member connected to the second fixing lever and the second pivot lever to press the second pivot lever toward the second center guide; and a second taping roller supported by the second center guide and attaching the tape to the stack cell when the suction body part moves.

The driving unit includes a first servo motor connected to the first center guide to move the first center guide; and a second servo motor connected to the second center guide to move the second center guide.

The driving unit may include a servo motor connected to the first center guide and the second center guide to simultaneously move the first center guide and the second center guide.

It may further include a guide moving device that moves the first center guide and the second center guide to contact one side of the stack cell.

It may further include a block moving device that moves the first suction block and the second suction block.

The block moving device includes a first block moving module connected to the first suction block; and a second block movement module connected to the second suction block.

According to the present invention, the first taping lever portion and the second taping lever portion are moved to the upper and lower surfaces of the stack cell while the upper and lower surfaces of the center guide portion are flush with the upper and lower surfaces of the stack cell, so that the first taping lever It is possible to prevent the second taping lever portion from colliding with the side edge of the stack cell.

According to the present invention, since the first taping lever portion and the second taping lever portion do not collide with the side edges of the stack cell, it is possible to prevent the electrode from being damaged at the side edges of the stack cell.

According to the present invention, since the upper and lower surfaces of the center guide part are moved in accordance with the thickness of the stack cell, it is possible to prevent the separator from being pushed and folded at the side edge of the stack cell by the first taping lever part or the second taping lever part. there is.

According to the present invention, damage to the stack cell or folding of the separator is prevented, thereby significantly reducing the possibility of ignition during the subsequent activation process or use of the battery cell.

In addition to the above-described effects, specific effects of the present invention are described below while explaining specific details for carrying out the invention.

1 is a diagram schematically showing a stack cell taping device according to the present invention.
FIG. 2 is a diagram schematically showing a state in which the thickness of the center guide portion in the stack cell taping device of FIG. 1 is adjusted to match the thickness of the stack cell.
FIG. 3 is a diagram schematically showing a state in which the tape is brought into contact with the side of the stack cell in a state in which the suction body part adsorbs the tape in the stack cell taping device of FIG. 1.
FIG. 4 is a diagram schematically showing a state in which the first taping lever unit and the second taping lever unit attach a tape to a stack cell in the stack cell taping device of FIG. 1.
Figure 5 is a diagram schematically showing a state in which a pair of stack cell taping devices according to the present invention are disposed on both sides of a stack cell.
FIG. 6 is a diagram schematically showing a state in which the thickness of the center guide portion in the pair of stack cell taping devices of FIG. 5 is adjusted to match the thickness of the stack cell.
FIG. 7 is a diagram schematically showing the state in which the tape is brought into contact with both sides of the stack cell in the stack cell taping device of FIG. 5 with the suction body adsorbing the tape.
FIG. 8 is a diagram schematically showing a state in which a tape is attached to a stack cell while the first taping lever unit and the second taping lever unit are moved on both sides of the stack cell in the stack cell taping device of FIG. 5.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is not limited to the embodiments disclosed below, but may be subject to various changes and may be implemented in various different forms. This example is 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. Therefore, the present invention is not limited to the embodiments disclosed below, but substitutes or adds to the configuration of one embodiment and the configuration of another embodiment, as well as all changes and equivalents included in the technical spirit and scope of the present invention. It should be understood to include substitutes.

The attached drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed in the present specification is not limited by the attached drawings, and all changes and equivalents included in the spirit and technical scope of the present invention are not limited to the attached drawings. It should be understood to include water or substitutes. In the drawings, components may be expressed exaggeratedly large or small in size or thickness for convenience of understanding, etc., but the scope of protection of the present invention should not be construed as limited due to this.

The terms used in this specification are only used to describe specific implementations or examples, and are not intended to limit the invention. And singular expressions include plural expressions, unless the context clearly dictates otherwise. In the specification, terms such as ~include, ~consist of, etc. are intended to indicate the existence of features, numbers, steps, operations, components, parts, or a combination thereof described in the specification. In other words, terms such as ~include, ~consist, etc. in the specification. It should be understood that this does not exclude in advance the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is said to be "connected" or "connected" to another component, it is understood that it may be directly connected to or connected to the other component, but that other components may exist in between. It should be. On the other hand, when it is mentioned that a component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

When a component is referred to as being "on top" or "below" another component, it should be understood that not only is it placed directly on top of the other component, but there may also be other components in between. .

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Hereinafter, a stack cell taping device according to an embodiment of the present invention will be described.

Figure 1 is a diagram schematically showing a stack cell taping device according to the present invention, and Figure 2 is a diagram schematically showing the center guide portion in the stack cell taping device of Figure 1 with the thickness adjusted to match the thickness of the stack cell. , FIG. 3 is a diagram schematically showing a state in which the tape is in contact with the side of the stack cell in a state in which the suction body part adsorbs the tape in the stack cell taping device of FIG. 1, and FIG. This is a diagram schematically showing the state in which the first taping lever unit and the second taping lever unit attach tape to the stack cell.

Referring to Figures 1 to 4, the stack cell taping device 100 according to an embodiment of the present invention includes a suction body part 110, a center guide part 130, a driving part 150, and a first taping lever part ( 160) and a second taping lever unit 170.

The stack cell 10 (stack cell) is made by stacking a plurality of unit cells. A unit cell includes a plurality of electrodes (not shown) and a plurality of separators (not shown) disposed between the plurality of electrodes. The unit cell may be a mono cell 11 in which a separator, a first electrode, a separator, and a second electrode are stacked in that order. This monocell 11 may be formed by stacking an even number of electrodes and an even number of separators.

The suction body portion 110 is disposed outside the stack cell 10. Vacuum adsorption units 112 and 116 are formed on one side of the suction body 110 to adsorb the tape 20. The suction body portion 110 is disposed on the upper and lower sides of the stack cell 10. A vacuum pump or vacuum chamber may be connected to the vacuum adsorption units 112 and 116 by a vacuum hose.

The center guide portion 130 is installed on one side of the stack cell 10 so that its thickness can be adjusted. The upper and lower surfaces of the center guide portion 130 are formed horizontally. The center guide portion 130 moves up and down and its thickness is adjusted. Additionally, the center guide unit 130 may be moved left and right to contact or be spaced apart from the stack cell 10.

The driving unit 150 adjusts the thickness of the center guide unit 130 to be the same as the thickness of the stack cell 10. The driving unit 150 moves the center guide unit 130 in the vertical direction.

The first taping lever unit 160 is supported on one surface of the center guide unit 130, and attaches the tape 20 adsorbed to the suction body unit 110 to one surface of the stack cell 10. The first taping lever unit 160 is connected to the suction body unit 110 so as to move together with the suction body unit 110.

The second taping lever unit 170 is supported on the other surface of the center guide unit 130, and attaches the tape 20 adsorbed to the suction body unit 110 to the other surface of the stack cell 10. The second taping lever unit 170 is connected to the suction body 110 so as to move together with the suction body 110. The second taping lever unit 170 moves together with the second taping lever unit 170.

At least one first taping lever unit 160 and a second taping lever unit 170 may be installed on the suction body unit 110. When the first taping lever unit 160 and the second taping lever unit 170 are installed one by one on the suction body unit 110, one tape 20 is attached each time the suction body unit 110 is moved. do. When the first taping lever unit 160 and the second taping lever unit 170 are installed in plural numbers on the suction body unit 110, each time the suction body unit 110 is moved, the tapes 20 are moved in plural numbers. They are attached one by one.

As the driving unit 150 of the stack cell taping device 100 is driven, the thickness of the center guide unit 130 is adjusted to be the same as the thickness of the stack cell 10. Then, when the center guide unit 130 contacts the side surface of the stack cell 10, the upper and lower surfaces of the center guide unit 130 form the same plane as the upper and lower surfaces of the stack cell 10. Then, when the suction body unit 110 moves from the center guide unit 130 toward the stack cell 10, the first taping lever unit 160 and the second taping lever unit 170 move the tape 20 to the stack cell. Attach it to the upper and lower surfaces of (10) while applying pressure. Accordingly, it is possible to prevent the alignment of the stack cells 10 from being disturbed.

In this way, in a state where the upper and lower surfaces of the center guide unit 130 are on the same plane as the upper and lower surfaces of the stack cell 10, the first taping lever unit 160 and the second taping lever unit 170 are connected to the stack cell 10. Since it moves to the upper and lower surfaces of the stack cell 10, the first taping lever unit 160 and the second taping lever unit 170 can be prevented from colliding with the side edge of the stack cell 10. Furthermore, damage to the electrode at the side edge of the stack cell 10 can be prevented. In addition, the separator at the side edge of the stack cell 10 can be prevented from being pushed and folded by the first taping lever unit 160 or the second taping lever unit 170. In this way, damage to the stack cell 20 or folding of the separator is prevented, thereby significantly reducing the possibility of ignition during the subsequent activation process or use of the battery cell.

The suction body portion 110 includes a first suction block 111 and a second suction block 115.

The first suction block 111 is disposed on one side of the center guide portion 130. A first vacuum adsorption unit 112 is installed in the first suction block 111 to adsorb the tape 20.

The second suction block 115 is disposed on the other side of the center guide portion 130, and adsorbs the tape 20 together with the first suction block 111. The first suction block 111 and the second suction block 115 may be installed to be individually movable or may be installed to be movable together. A second vacuum adsorption unit 116 is installed in the second suction block 115 to adsorb the tape 20.

Additionally, the first suction block 111 and the second suction block 115 may be connected to an approximately “ㄷ” shaped connection structure. A space through which the stack cell 10 can pass is formed between the first suction block 111 and the second suction block 115.

The stack cell taping device 100 may further include a block moving device 120 that moves the first suction block 111 and the second suction block 115 in the horizontal direction. The block moving device 120 can move the first suction block 111 and the second suction block 115 simultaneously or individually.

The block moving device 120 may include a first block moving module 121 connected to the first suction block 111 and a second block moving module 122 connected to the second suction block 115. there is. The first block movement module 121 and the second block movement module 122 may be linear motors, ball screw structures, cylinder structures, etc.

The center guide unit 130 includes a first center guide 131 and a second center guide 135.

The first center guide 131 supports the first taping lever unit 160 and is disposed on one side of the suction body unit 110. The first center guide 131 is formed in a flat shape.

The second center guide 135 supports the second taping lever unit 170, is disposed opposite to the first center guide 131, and is formed to correspond to the thickness of the stack cell 10. is moved with The second center guide 135 is formed in a flat shape.

When a plurality of first taping lever units 160 are installed, the first center guide 131 is formed widely to support the plurality of first taping lever units 160 at the same time. Additionally, when a plurality of second taping lever units 170 are installed, the second center guide 135 is formed widely to support the plurality of second taping lever units 170 at the same time. The sizes of the first and second center guides 135 may vary depending on the number of first taping lever units 160 and second taping lever units 170 installed.

One surface (upper surface) of the first center guide 131 forms a first flat part 132, and the other surface (lower surface) of the second center guide 135 forms a second flat part 136. Accordingly, when the first center guide 131 and the second center guide 135 are moved to correspond to the thickness of the stack cell 20, the first flat portion 132 and the second flat portion 136 are stacked. It forms the same plane as the upper and lower surfaces of the cell 20. Accordingly, when the first taping lever unit 160 and the second taping lever unit 170 are moved from the first flat part 132 and the second flat part 136 to the upper and lower surfaces of the stack cell 10. It is possible to prevent the corners of the stack cell 10 from being damaged or the separator from being folded.

An anodizing layer may be coated on the surfaces of the first center guide 131 and the second center guide 135, respectively. The anodizing layer improves wear resistance and lubricity. Accordingly, the first taping lever unit 160 and the second taping lever unit 170 can be moved smoothly.

The driving unit 150 includes a first servo motor 151 and a second servo motor 152.

The first servo motor 151 is connected to the first center guide 131 to move the first center guide 131. As the first servo motor 151 is driven, the first center guide 131 moves in the vertical direction.

The second servo motor 152 is connected to the second center guide 135 to move the second center guide 135. As the second servo motor 152 is driven, the second center guide 135 moves in the vertical direction.

Since the first servo motor 151 and the second servo motor 152 individually move the first center guide 131 and the second center guide 135, the first center guide 131 and the second center guide 135 are moved according to the thickness of the stack cell 10. The guide 131 and the second center guide 135 can be moved. Additionally, the first center guide 131 and the second center guide 135 can be precisely moved to form the same plane as the upper and lower surfaces of the stack cell 10.

The driving unit 150 includes one servo motor connected to the first center guide 131 and the second center guide 135 to move the first center guide 131 and the second center guide 135 at the same time. can do. Accordingly, the number of parts constituting the stack cell taping device 100 can be reduced.

The stack cell taping device 100 may further include a guide moving device 140 that moves the first center guide 131 and the second center guide 135 so that they contact one side of the stack cell 10. A step motor or linear motor, etc. may be applied as the guide movement device 140.

The first taping lever unit 160 includes a first fixing lever 161, a first pivoting lever 162, a first elastic member 164, and a first taping roller 165.

The first fixing lever 161 is fixed to the suction body portion 110. The first fixing lever 161 may be arranged horizontally or slightly inclined to the first center guide 131. The first fixing lever is arranged to be spaced apart from the upper surface of the stack cell 10. The first fixing lever 161 is fixed to the suction body 110 in a cantilever shape.

The first swing lever 162 is rotatably coupled to the first fixed lever 161. The first swing lever 162 is rotatably coupled to the free end of the first fixing lever 161 by a first hinge portion 163. The first pivot lever 162 is disposed inclined downward.

The first elastic member 164 is connected to the first fixing lever 161 and the first pivot lever 162 to press the first pivot lever 162 toward the first center guide 131. The first elastic member 164 may be a coil spring or torsion spring. The coil spring may be disposed between the free end of the first fixing lever 161 and the first suction block 111. The torsion spring may be installed in the first hinge portion 163.

The first taping roller 165 is supported on the first center guide 131, and attaches the tape 20 to the stack cell 10 when the suction body portion 110 moves. The first taping roller 165 is rotatably installed at the lower end of the first swing lever 162. The width of the first taping roller 165 is formed to be wider than the width of the tape 20. Accordingly, as the suction body portion 110 moves toward the stack cell 10, the first taping roller 165 presses the tape 20 and attaches it to the upper surface of the stack cell 10.

The second taping lever unit 170 includes a second fixing lever 171, a second pivoting lever 172, a second elastic member 174, and a second taping roller 175.

The second fixing lever 171 is fixed to the suction body portion 110. The second fixing lever 171 may be arranged horizontally or slightly inclined to the second center guide 135. The second fixing lever is arranged to be spaced apart from the lower surface of the stack cell 10. The second fixing lever 171 is fixed to the suction body portion 110 in a cantilever shape.

The second swing lever 172 is rotatably coupled to the second fixing lever 171. The second swing lever 172 is rotatably coupled to the free end of the second fixing lever 171 by a second hinge portion 173. The second swing lever 172 is disposed inclined upward.

The second elastic member 174 is connected to the second fixing lever 171 and the second pivot lever 172 to press the second pivot lever 172 toward the second center guide 135. The second elastic member 174 may be a coil spring or torsion spring. The coil spring may be disposed between the free end of the second fixing lever 171 and the second suction block 115. The torsion spring may be installed in the second hinge portion 173.

The second taping roller 175 is supported on the second center guide 135, and attaches the tape 20 to the stack cell 10 when the suction body portion 110 moves. The second taping roller 175 is rotatably installed at the upper end of the second swing lever 172. The width of the second taping roller 175 is formed to be wider than the width of the tape 20. Accordingly, as the suction body portion 110 moves toward the stack cell 10, the second taping roller 175 presses the tape 20 and attaches it to the lower surface of the stack cell 10.

The operation of the stack cell taping device according to the present invention configured as described above will be described.

First, a process in which one stack cell taping device 100 taps one stack cell 10 will be described.

The stack cell 20 is transferred to the taping position of the stack cell taping device 100. The thickness of the stack cell 20 can be input in advance to the control unit or can be measured using a vision camera. When the tape 20 is supplied to one side of the suction body 110, the tape 20 is adsorbed to the suction body 110. At this time, the first vacuum adsorption unit 112 of the first suction block 111 and the second vacuum adsorption unit 116 of the second suction block 115 apply vacuum adsorption force to the tape 20 (see Figure 1). ).

The control unit drives the driving unit 150 to adjust the thickness of the center guide unit 130 (see FIG. 2). At this time, as the first servo motor 151 is driven, the first center guide 131 is raised, and as the second servo motor 152 is driven, the second center guide 135 is lowered. Additionally, as the first center guide 131 is raised, the first pivot lever 162 is pivoted upward, and the first elastic member 164 is also contracted. As the second center guide 135 is lowered, the second pivot lever 172 pivots downward, and the second elastic member 174 also contracts. When the first center guide 131 and the second center guide 135 reach the preset position, the first servo motor 151 and the second servo motor 152 are stopped.

As the guide moving device 140 is driven, the first center guide 131 and the second center guide 135 come into contact with the side of the stackel 20 (see FIG. 3). At this time, the first flat portion 132 (upper surface) of the first center guide 131 forms the same plane as the upper surface of the stack cell 10, and the second flat portion 136 (upper surface) of the second center guide 135 ( The lower surface) forms the same plane as the lower surface of the stack cell 10.

When the block moving device 120 is moved to the right, the first taping roller 165 moves from the first flat portion 132 to the upper surface of the stack cell 10, and the second taping roller 175 moves to the second flat portion. It is moved from the portion 136 to the lower surface of the stack cell 10 (see FIG. 4). At this time, since the first center guide 131 and the second center guide 135 are flush with both sides of the stack cell 10, the first taping roller 165 and the second taping roller 175 are stacked. Collision with the corners of the cell 20 can be prevented. Accordingly, damage to the corners of the stack cell 20 can be prevented. Additionally, it is possible to prevent the outermost separator of the stack cell 10 from being folded or separated from the electrode.

When the first taping roller 165 and the second taping roller 175 completely attach the tape 20, the block moving device 120 moves to the left and returns to its original position. When taping of one side of the stack cell 10 in the width direction is completed, the stack cell taping device 100 can be moved to the other side of the stack cell 10 in the width direction. Additionally, the stack cell 10 may be rotated so that the other side of the stack cell 10 in the width direction faces the stack cell taping device 100. Next, when the other side of the stack cell 10 in the width direction is taped, the taping of the stack cell 10 is completed.

Next, a process in which two stack cell taping devices 100 simultaneously tap one stack cell 10 will be described.

Figure 5 is a diagram schematically showing a state in which a pair of stack cell taping devices according to the present invention are disposed on both sides of a stack cell, and Figure 6 shows a center guide portion of a pair of stack cell taping devices of Figure 5. It is a diagram schematically showing the state in which the thickness is adjusted according to the thickness, and Figure 7 schematically shows the state in which the tape is brought into contact with both sides of the stack cell in a state in which the suction body part adsorbs the tape in the stack cell taping device of Figure 5. It is a drawing, and FIG. 8 is a diagram schematically showing a state in which a tape is attached to a stack cell while the first taping lever unit and the second taping lever unit are moved on both sides of the stack cell in the stack cell taping device of FIG. 5.

Referring to Figures 5 to 8, the stack cell 20 is transferred to the taping position of a pair of stack cell taping devices 100. The thickness of the stack cell 20 can be input in advance to the control unit or can be measured using a vision camera. When the tape 20 is supplied to the pair of suction body parts 110, the tapes 20 are each adsorbed to the suction body parts 110. At this time, the first vacuum adsorption unit 112 of the first suction block 111 and the second vacuum adsorption unit 116 of the second suction block 115 apply vacuum adsorption force to the tape 20 (see FIG. 5). ).

The control unit drives the driving unit 150 to adjust the thickness of the center guide unit 130 (see FIG. 6). At this time, in the pair of stack cell taping devices 100, as the first servo motor 151 is driven, the first center guide 131 is raised, and as the second servo motor 152 is driven, the second center guide 131 is raised. The guide 135 is lowered. Additionally, as the first center guide 131 is raised, the first pivot lever 162 is pivoted upward, and the first elastic member 164 is also contracted. As the second center guide 135 is lowered, the second pivot lever 172 pivots downward, and the second elastic member 174 also contracts. When the first center guide 131 and the second center guide 135 in each stack cell taping device 100 reach the preset position, the first servo motor 151 and the second servo motor 152 are stopped. .

As the guide moving device 140 is driven, the first center guide 131 and the second center guide 135 come into contact with both sides of the stackel, respectively (see FIG. 7). At this time, the first flat portion 132 (upper surface) of the two first center guides 131 forms the same plane as the upper surface of the stack cell 10, and the second flat portion of the two second center guides 135 (136) (lower surface) forms the same plane as the lower surface of the stack cell (10).

When the pair of block moving devices 120 are moved toward the center of the stack cell 10, the two first taping rollers 165 are moved from the first flat portion 132 to the upper surface of the stack cell 10, The two second taping rollers 175 are moved from the second flat portion 136 to the lower surface of the stack cell 10 (see FIG. 8). At this time, since the two first center guides 131 and the two second center guides 135 are flush with both sides of the stack cell 10, the two first taping rollers 165 and the two first taping rollers 165 2 It is possible to prevent the taping roller 175 from colliding with both corners of the stack cell 20. Accordingly, damage to the corners of the stack cell 20 can be prevented. Additionally, it is possible to prevent the outermost separator of the stack cell 10 from being folded or separated from the electrode.

The two first taping rollers 165 completely attach the tape 20 to the upper surface of the stack cell 10, and the two second taping rollers 175 attach the tape 20 to the lower surface of the stack cell 10. When completely attached, the pair of block moving devices 120 are moved outward in the width direction of the stack cell 10 and returned to their original positions. In this way, a pair of stack cell taping devices 100 can simultaneously tap both sides of the stack cell 10 in the width direction. Accordingly, the taping time of the stack cell 10 can be significantly shortened.

As described above, the present invention has been described with reference to the illustrative drawings, but the present invention is not limited to the embodiments and drawings disclosed herein, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that transformation can occur. In addition, although the operational effects according to the configuration of the present invention were not explicitly described and explained while explaining the embodiments of the present invention above, it is natural that the predictable effects due to the configuration should also be recognized.

10: Stack cell
11: Monocell
20: Tape
100: Stackcell taping device
110: Suction body part
111: 1st suction block
112: First vacuum adsorption unit
115: Second suction block
116: Second vacuum adsorption unit
120: Block moving device
121: 1st block movement module
122: Second block movement module
130: Center guide unit
131: First Center Guide
132: First flat part
135: Second Center Guide
136: Second flat part
140: Guide moving device
150: driving unit
151: First servo motor
152: Second servo motor
160: First taping lever part
161: First fixing lever
162: First pivot lever
163: First hinge portion
164: First elastic member
165: First taping roller
170: Second taping lever part
171: Second fixing lever
172: Second pivot lever
173: Second hinge portion
174: Second elastic member
175: Second taping roller

Claims (11)

Suction body portion 110 to which the tape 20 is adsorbed;
A center guide unit 130 installed on one side of the stack cell 10 to enable thickness adjustment;
a driving unit 150 that adjusts the thickness of the center guide unit 130 to be the same as the thickness of the stack cell 10;
At least one first taping lever unit 160 supported on one surface of the center guide unit 130 and attaching the tape 20 adsorbed to the suction body unit 110 to one surface of the stack cell 10 ; and
At least one second taping lever unit 170 supported on the other surface of the center guide unit 130 and attaching the tape 20 adsorbed to the suction body unit 110 to the other surface of the stack cell 10 Stackcell taping device including ; According to paragraph 1,
The suction body portion 110,
A first suction block 111 disposed on one side of the center guide portion 130 and adsorbing the tape 20; and
A stack cell taping device comprising a second suction block (115) disposed on the other side of the center guide unit (130) and adsorbing the tape (20) together with the first suction block (111). According to paragraph 1,
The center guide unit 130,
A first center guide 131 supporting the first taping lever unit 160 and disposed on one side of the suction body unit 110; and
Supports the second taping lever unit 170, is disposed opposite to the first center guide 131, and moves together with the first center guide 131 to correspond to the thickness of the stack cell 10. A stack cell taping device including a second center guide (135). According to paragraph 3,
One surface of the first center guide 131 forms a first flat portion 132,
A stack cell taping device in which the other surface of the second center guide (135) forms a second flat portion (136). According to paragraph 3,
A stack cell taping device in which an anodizing layer is coated on the surfaces of the first center guide 131 and the second center guide 135. According to paragraph 3,
The first taping lever unit 160,
A first fixing lever 161 fixed to the suction body 110;
A first pivoting lever (162) rotatably link coupled to the first fixing lever (161);
a first elastic member 164 connected to the first fixing lever 161 and the first pivot lever 162 to press the first pivot lever 162 toward the first center guide 131; and
A stack cell comprising; a first taping roller 165 supported on the first center guide 131 and attaching the tape 20 to the stack cell 10 when the suction body portion 110 moves. Taping device. According to clause 6,
The second taping lever unit 170,
A second fixing lever 171 fixed to the suction body 110;
a second pivot lever (172) rotatably coupled to the second fixing lever (171);
a second elastic member 174 connected to the second fixing lever 171 and the second pivot lever 172 to press the second pivot lever 172 toward the second center guide 135; and
A stack cell comprising; a second taping roller 175 supported on the second center guide 135 and attaching the tape 20 to the stack cell 10 when the suction body portion 110 moves. Taping device. According to paragraph 3,
The driving unit 150,
a first servo motor 151 connected to the first center guide 131 to move the first center guide 131; and
A stack cell taping device comprising a second servo motor (152) connected to the second center guide (135) to move the second center guide (135). According to paragraph 3,
A stack cell taping device further comprising a guide moving device 140 that moves the first center guide 131 and the second center guide 135 to contact one side of the stack cell 10. According to paragraph 2,
A stack cell taping device further comprising a block moving device 120 that moves the first suction block 111 and the second suction block 115. According to clause 10,
The block moving device 120,
A first block movement module 121 connected to the first suction block 111; and
A stack cell taping device including a second block movement module (122) connected to the second suction block (115).