Electrode connection device and automated electrode connection method using the same

Abstract

The present invention relates to an electrode connecting apparatus, comprising: a conveying unit configured to convey the starting portion of a backup electrode roll while clamping the starting portion; a leading unit configured to move upward while clamping the starting portion of the backup electrode roll conveyed by the conveying unit; a first connecting unit configured to fix the backup electrode roll conveyed by the guiding unit; a second connecting unit configured to fix the end portion of a moving electrode roll; and a tape applying unit configured to connect the backup electrode roll and the moving electrode roll to each other, thereby enabling the electrode rolls to be automatically connected to each other during an electrode manufacturing process performed in a roll-to-roll process.

Description

Technical Field

[0001] This application claims the benefit of priority from Korean Patent Application No. 2020-0087016, filed on Jul. 14, 2020, the disclosure of which is incorporated herein by reference in its entirety.

[0002] The present invention relates to an electrode connecting device and an automated electrode connecting method using the same, and more particularly, to an electrode connecting device capable of automatically connecting a new spare electrode roll to the end portion of a moving electrode roll during an electrode manufacturing process performed in a roll-to-roll process, and an automated electrode connecting method using the same. Background Art

[0003] Lithium secondary batteries capable of charging and discharging have been widely used as energy sources for wireless mobile devices or wearable devices worn on the body, and have also been used as energy sources for electric vehicles and hybrid electric vehicles proposed as alternatives to existing gasoline and diesel vehicles that cause air pollution.

[0004] In the lithium secondary battery, a positive electrode and a negative electrode are stacked with a separator interposed therebetween, and lithium ions move between the positive electrode and the negative electrode, whereby the lithium secondary battery repeats charge and discharge.

[0005] The process of manufacturing electrodes including positive and negative electrodes includes the following steps: coating the remaining portion of an electrode sheet wound into a roll with an electrode agent except for the portion to form an electrode tab; drying and rolling the electrode agent; slitting the electrode sheet; and cutting the slit electrode sheet into unit electrodes.

[0006] The electrode manufacturing process is performed in a continuous roll-to-roll process. When the electrode roll wound into a roll form is consumed during the continuous manufacturing of electrodes using the electrode roll, workers stop the equipment, connect the end of the electrode roll in use and the end of a new electrode roll to each other using tape, and then restart the equipment.

[0007] As described above, in the case where the electrode production process is suspended in order to replace the electrode roll and then resumed, productivity decreases.

[0008] In this regard, patent document 1 discloses an electrode production system for a secondary battery, which is capable of connecting a first electrode material mounted on a first electrode material supply reel and a second electrode material mounted on a second electrode material supply reel to each other to perform a continuous process, but does not specifically disclose a method of automatically attaching a tape to the first electrode material and the second electrode material using a tape adsorption plate.

[0009] Patent document 2 relates to an automatic electrode film replacement device, which is configured to automatically connect the end of the electrode film in use and the end of a new electrode film to each other by joining when the electrode film wound in a roll form is almost consumed during the process of continuously conveying the electrode film to manufacture secondary batteries, thereby continuously performing the secondary battery manufacturing process without interruption.

[0010] Patent document 2 is capable of achieving a joining connection when the electrode membrane in use and the new electrode membrane are moved and set to face each other, but does not disclose an apparatus that can transfer the new electrode membrane to the electrode membrane in use and set the new electrode membrane when the electrode membrane in use is not set to face the new electrode membrane.

[0011] Therefore, there is a high demand for a technology that can automatically connect electrode rolls to each other without worker intervention even when the electrode rolls are not arranged to face each other when performing a continuous electrode manufacturing process, thereby achieving uniform electrode connection quality regardless of the worker's skills.

[0012] (Prior art literature)

[0013] (Patent Document 1) Korean Patent Publication No. 1857396 (May 4, 2018)

[0014] (Patent Document 2) Korean Patent Application Publication No. 2016-0133264 (November 22, 2016) Summary of the Invention

[0015] Technical issues

[0016] The present invention has been made in view of the above problems, and an object of the present invention is to provide an electrode connecting device and an electrode connection automation method using the electrode connecting device, which can continuously supply electrode rolls without interruption during the electrode manufacturing process, thereby improving productivity and preventing defects during the electrode roll connection process.

[0017] Technical Solution

[0018] In order to achieve the above-mentioned purpose, the electrode connecting device according to the present invention includes: a conveying unit, which is configured to convey the starting portion of the backup electrode roll while clamping the starting portion; a leading unit, which is configured to move upward while clamping the starting portion of the backup electrode roll conveyed by the conveying unit; a first connecting unit, which is configured to fix the starting portion of the backup electrode roll conveyed by the guiding unit; a second connecting unit, which is configured to fix the end portion of the moving electrode roll; and a tape applying unit, which is configured to connect the backup electrode roll and the moving electrode roll to each other.

[0019] In the electrode connecting apparatus according to the present invention, the conveying unit may be configured to have a structure capable of moving toward the backup electrode roll in a first direction and moving in a second direction opposite to the first direction while clamping opposite side ends of the starting portion of the backup electrode roll.

[0020] In the electrode connecting apparatus according to the present invention, the guide unit may be movable downward, may clamp the end portion of the starting portion of the spare electrode roll, and may be movable upward.

[0021] In the electrode connecting apparatus according to the present invention, the first connecting unit may fix the starting portion of the spare electrode roll by adsorption.

[0022] In the electrode connecting apparatus according to the present invention, the first connecting unit may include a moving cutter configured to cut the spare electrode roll.

[0023] In the electrode connecting device according to the present invention, the spare electrode roll may be fixed to a first surface of the first connecting unit, the movable cutter may be provided on a second surface of the first connecting unit, the second surface of the first connecting unit being an outer surface opposite to the first surface of the first connecting unit, and the first connecting unit may be provided with a slit so that the movable cutter cuts the spare electrode roll while moving along the slit.

[0024] In the electrode connecting apparatus according to the present invention, the first connecting unit may be configured to have a structure in which the first connecting unit moves toward the second connecting unit so that the end of the starting portion of the backup electrode roll abuts against the terminal portion of the moving electrode roll fixed to the second connecting unit.

[0025] In the electrode connecting device according to the present invention, the end portion of the movable electrode roll may be fixed to the second surface of the second connecting unit, and the tape attaching unit may be arranged outside the first surface of the second connecting unit, the first surface of the second connecting unit being the outer surface opposite to the second surface of the second connecting unit.

[0026] In the electrode connecting apparatus according to the present invention, the second connecting unit may be provided with a penetration portion, and the penetration portion may be configured to allow the tape of the tape applying unit to pass therethrough.

[0027] In the electrode connecting device according to the present invention, the tape attaching unit may include: a supply portion configured to supply tape; a tape clamp configured to transfer the tape supplied by the supply portion to the attaching portion; and the attaching portion configured to move to the electrode roll connecting portion where the starting portion of the spare electrode roll and the end portion of the movable electrode roll are connected to each other while fixing the tape, and the tape clamp may be provided with a tape cutter configured to cut the tape.

[0028] In addition, the present invention provides an electrode connection automation method using the electrode connection device, and the electrode connection automation method includes the following steps: (a) conveying the starting part of the spare electrode roll while clamping the starting part; (b) the guide unit moves downward to clamp the starting part of the spare electrode roll and convey the starting part of the spare electrode roll to the first connection unit; (c) cutting the starting part of the spare electrode roll; and (d) connecting the spare electrode roll and the movable electrode roll to each other.

[0029] The electrode connection automation method according to the present invention may further comprise, after step (c), moving the backup electrode roll in a direction toward the moving electrode roll.

[0030] In the electrode connection automation method according to the present invention, step (d) may include: installing the tape to the attaching portion of the tape attaching unit; and attaching the tape to the electrode roll connecting portion where the starting portion of the standby electrode roll and the end portion of the movable electrode roll are connected to each other.

[0031] Beneficial effects

[0032] As apparent from the above description, the electrode connecting apparatus according to the present invention includes a conveying unit and a guiding unit, so that the electrode rolls can be automatically connected to each other even if the starting portion of the standby electrode roll and the ending portion of the moving electrode roll do not face each other in parallel.

[0033] Furthermore, in the case of using the electrode connecting apparatus according to the present invention, the adhesive tape is attached to only one surface of each of the standby electrode roll and the moving electrode roll, so that the connecting process can be simplified, and thus productivity can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a perspective view of an electrode connection device according to the present invention.

[0035] Figure 2 Is shown using Figure 1 A perspective view of a process in which a transfer unit and a guide unit transfer a spare electrode roll.

[0036] Figure 3 Is shown using Figure 1 A perspective view of a process of cutting a spare electrode roll by a first connecting unit.

[0037] Figure 4 It shows Figure 3 The spare electrode roll for cutting is moved to Figure 1 A perspective view of the second connecting unit.

[0038] Figure 5 is a perspective view showing a process of attaching an adhesive tape to a connecting portion of an electrode roll.

[0039] Figure 6 It is a plan view showing a state in which the backup electrode roll and the moving electrode roll are connected to each other. DETAILED DESCRIPTION

[0040] Now, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the preferred embodiments of the present invention. However, in describing the working principles of the preferred embodiments of the present invention in detail, when the detailed description of known functions and structures incorporated herein may obscure the main purpose of the present invention, the detailed description will be omitted.

[0041] In addition, the same reference numerals will be used throughout the drawings to represent components that perform similar functions or operations. Where a component is referred to as being connected to another component throughout the application, the component may be directly connected to the other component and may also be indirectly connected to the other component via another component. In addition, the inclusion of an element does not mean the exclusion of other elements, but rather means that other elements may be further included unless otherwise specified.

[0042] Furthermore, unless otherwise limited, the description that specifies elements by limitation or addition is applicable to all inventions and does not limit the specific invention.

[0043] Furthermore, in the description of the present invention and the claims of this application, unless otherwise mentioned, the singular form is intended to include the plural form.

[0044] In addition, in the description of the present invention and the claims of this application, unless otherwise stated, "or" includes "and". Therefore, "including A or B" refers to three cases, namely, the case including A, the case including B, and the case including A and B.

[0045] Furthermore, all numerical ranges include the lowest value, the highest value and all intermediate values therebetween unless the context clearly dictates otherwise.

[0046] Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0047] Figure 1 is a perspective view of an electrode connection device according to the present invention.

[0048] Reference Figure 1 The electrode connecting device according to the present invention includes: a conveying unit 200, the conveying unit 200 is configured to convey the starting portion while clamping the starting portion 111 of the spare electrode roll; a guide unit 300, the guide unit 300 is configured to move upward while clamping the starting portion 111 of the spare electrode roll conveyed by the conveying unit 200; a first connecting unit 400, the first connecting unit 400 is configured to fix the starting portion 111 of the spare electrode roll conveyed by the guide unit 300; and a second connecting unit 500, the second connecting unit 500 is configured to fix the end portion of the moving electrode roll 120.

[0049] The electrode connection automation method using the electrode connection device includes the following steps: (a) transferring the starting portion 111 of the spare electrode roll while clamping it; (b) the guide unit 300 moves downward to clamp the starting portion 111 of the spare electrode roll and transfer the starting portion 111 of the spare electrode roll to the first connection unit 400; (c) cutting the starting portion 111 of the spare electrode roll; and (d) connecting the spare electrode roll 110 and the movable electrode roll 120 to each other.

[0050] In addition, after step (c), the step may include: moving the backup electrode roll 110 in a direction toward the movable electrode roll 120, and the step (d) may include: installing the tape to the attaching portion of the tape attaching unit; and attaching the tape to the electrode roll connecting portion where the starting portion of the backup electrode roll and the end portion of the movable electrode roll are connected to each other.

[0051] Figure 1The conveying unit 200, the guide unit 300, the first connecting unit 400, and the second connecting unit 500 shown in the figure constitute an embodiment. The structure of each unit is not limited to the structure shown in the present application as long as each unit can perform the function to be described below.

[0052] In this specific example, the transport unit 200 includes two transport clamps 210. The transport clamps 210 are spaced apart from each other so as to clamp the backup electrode roll at two opposing ends in the direction of movement. Furthermore, while mounted on the transport unit 200, the transport clamps 210 move toward the backup electrode roll 110 within a predetermined section, clamp the backup electrode roll 110, and transport the backup electrode roll toward the guide unit.

[0053] The transport unit 200 moves in a first direction, i.e., the x+ direction, toward the backup electrode roll 110 and clamps the opposite side ends of the starting portion 111 of the backup electrode roll using the transport clamps 210. In this state, when the transport unit moves in a second direction, i.e., the x- direction, the backup electrode roll 110 is pulled out.

[0054] Figure 2 Is shown using Figure 1 A perspective view of a process in which a transfer unit and a guide unit transfer a spare electrode roll.

[0055] Reference Figure 2 When the conveying unit 200 moves in the x-direction in a state where the conveying clamps 210 of the conveying unit clamp the opposite side ends of the starting portion 111 of the backup electrode roll 110 , the backup electrode roll 110 is drawn out.

[0056] When the leading portion 111 of the backup electrode roll reaches below the guide unit 300, the transport jig 210 rotates in the direction indicated by the arrow so that the end of the leading portion 111 of the backup electrode roll faces the guide unit 300. Therefore, even if the guide unit 300 moves only in the up and down directions, the process of holding the leading portion 111 of the backup electrode roll by the guide unit 300 can be easily performed.

[0057] In order for the guide unit 300 to grip the starting portion 111 of the backup electrode roll, the length of the length adjusting portion 320 of the guide unit 300 is increased so that the guide clamp 310 can grip the starting portion 111 of the backup electrode roll with its end bent upward. When the length adjusting portion 320 is reduced while the guide clamp 310 grips the end of the starting portion 111 of the backup electrode roll, the starting portion 111 of the backup electrode roll can move upward.

[0058] Figure 3 It shows the use of Figure 1 A perspective view of a process of cutting a spare electrode roll by a first connecting unit.

[0059] Reference Figure 3 , the starting portion 111 of the spare electrode roll moved upward by the guide unit 300 is fixed to the first surface 401 of the first connecting unit 400 .

[0060] The first surface 401 may be configured as an adsorption portion. For example, a vacuum hole may be formed in the first surface 401, and a vacuum decompression cylinder may be coupled to the first connection unit 400. Thus, the backup electrode roll 110 may be fixed to the first surface 401 by adsorption of the adsorption portion.

[0061] The first connecting unit 400 may be provided with a movable cutter 420 configured to cut the backup electrode roll 110. The cutting position of the backup electrode roll 110 may be set in consideration of the position of the electrode roll connecting portion where the backup electrode roll 110 and the movable electrode roll 120 are connected to each other, and then the cutting may be performed by the movable cutter 420.

[0062] The backup electrode roll 110 is fixed to the first surface 401 of the first connecting unit 400, and the movable cutter 420 is provided on the second surface 402, which is an outer surface opposite to the first surface 401. The movable cutter 420 is arranged so that a portion of the blade 421 protrudes outward from one end of the first surface 401. In this state, the movable cutter 420 cuts the backup electrode roll 110 while moving to the other end of the first surface 401. A slit 410 is formed in the first connecting unit 400, allowing the movable cutter 420 to move as described above.

[0063] The residual electrode 112 formed due to the cutting performed by the moving cutter 420 is removed.

[0064] Figure 4 It shows Figure 3 The spare electrode roll for cutting is moved to Figure 1 A perspective view of the second connecting unit.

[0065] Reference Figure 4 , the end portion 121 of the moving electrode roll 120 is fixed to the second surface 502 of the second connecting unit 500 , and the tape applying unit 600 is disposed outside the first surface 501 , which is an outer surface opposite to the second surface 502 .

[0066] The second surface 502 of the second connecting unit 500 may be configured as an adsorption portion. For example, a vacuum hole may be formed in the second surface 502, and a vacuum decompression cylinder may be coupled to the second connecting unit 500. Thus, the moving electrode roll 120 may be fixed to the second surface 502 by adsorption of the adsorption portion.

[0067] The first connecting unit 400 moves toward the second connecting unit 500 so that the end of the starting portion 111 of the backup electrode roll is butted against the ending portion 121 of the moving electrode roll 120 .

[0068] The backup electrode roll 110 is attached to the second surface 502 of the second connecting unit 500 so that the starting portion 111 of the backup electrode roll and the ending portion 121 of the moving electrode roll 120 are in contact with each other. At this time, the air suction performed by the suction portion of the first connecting unit 400 for sucking the backup electrode roll 110 is interrupted, and the second connecting unit 500 starts sucking the backup electrode roll 110, so that the backup electrode roll 110 is fixed to the second surface 502 of the second connecting unit 500.

[0069] The tape is applied to the electrode roll connection portion where the backup electrode roll and the moving electrode roll attached to the second surface 502 of the second connecting unit 500 are joined to each other using the tape applying unit 600 provided on the outer side of the first surface 501 of the second connecting unit 500. The second connecting unit 500 is provided with a through portion 510 through which the tape of the tape applying unit 600 passes.

[0070] Figure 5 is a perspective view showing a process of attaching an adhesive tape to a connecting portion of an electrode roll.

[0071] Reference Figure 5 as well as Figure 4 The tape applying unit 600 includes a supply unit 610 configured to supply tape; a tape clamp 620 configured to withdraw the tape supplied by the supply unit 610 while holding the tape, so that the tape is disposed on the outer surface of the applying unit 630; and an applying unit 630 configured to move to the electrode roll connection portion while holding the tape. Furthermore, the tape clamp 620 is provided with a tape cutter (not shown) configured to cut the tape.

[0072] The tape clamp 620 grips the end of the tape roll and positions the tape so that the non-adhesive surface of the tape is located on the outer surface of the attachment portion 630. The attachment portion secures the non-adhesive surface of the tape through suction. The suction of the attachment portion can be performed in the same manner as the suction portion of each of the first and second connection units. A vacuum decompression suction method can be used.

[0073] The tape clamp 620 returns to the position before the tape is transferred and cuts the tape drawn out from the tape roll while being clamped. At this time, the tape is cut into the length required for attaching to the electrode roll connection portion and attached to the attaching portion 630.

[0074] The attaching portion 630 is movable by the conveying device and may pass through the penetration portion 510 formed in the second connecting unit 500 to attach the tape to the electrode roll connecting portion.

[0075] Figure 6 It is a plan view showing a state in which the backup electrode roll and the moving electrode roll are connected to each other.

[0076] Reference Figure 6 , shows a state in which the adhesive tape 640 is attached to the electrode roll connecting portion 150 where the moving electrode roll 120 and the backup electrode roll 110 are connected to each other, thereby connecting the two electrode rolls to each other.

[0077] Since the end portion of the backup electrode roll 110 is cut by the moving cutter that moves along the slit formed in the first connecting unit, the backup electrode roll may be cut parallel to the width direction a of the electrode roll.

[0078] As a result, the line where the end of the standby electrode roll and the end of the moving electrode roll are joined to each other at the electrode roll connection portion 150 can be a straight line. Therefore, the overlap between the two electrodes at the electrode roll connection portion 150 is minimized, thereby preventing the generation of a thickness difference at the electrode roll connection portion 150.

[0079] As described above, using the electrode connecting apparatus and the automated electrode connecting method using the same according to the present invention, a spare electrode roll and a moving electrode roll can be automatically connected to each other. Therefore, there is no need to pause the process to connect the electrode rolls, and the electrode roll connection portion can be uniformly formed, thereby improving productivity in the electrode manufacturing process.

[0080] Those skilled in the art to which the present invention pertains will appreciate that various applications and modifications are possible within the scope of the present invention based on the above description.

[0081] (Explanation of Reference Numbers)

[0082] 110: Spare electrode roll

[0083] 111: The beginning of the spare electrode roll

[0084] 112: Residual electrode

[0085] 120: Mobile electrode roll

[0086] 121: The end portion of the moving electrode roll

[0087] 150: Electrode coil connection part

[0088] 200: Transmission unit

[0089] 210: Transfer fixture

[0090] 300: Guidance unit

[0091] 310: Guide fixture

[0092] 320: Length adjustment part

[0093] 400: First connection unit

[0094] 401: First surface

[0095] 402: Second surface

[0096] 410: Slit

[0097] 420: Mobile Cutter

[0098] 421: Blade

[0099] 500: Second connection unit

[0100] 501: First surface

[0101] 502: Second surface

[0102] 510: Through

[0103] 600: Tape attaching unit

[0104] 610: Supply Department

[0105] 620: Tape clamp

[0106] 630: Attachment

[0107] 640: Tape.

[0108] Industrial Applicability

[0109] As apparent from the above description, the electrode connecting apparatus according to the present invention includes a conveying unit and a guiding unit, so that the electrode rolls can be automatically connected to each other even if the starting portion of the standby electrode roll and the ending portion of the moving electrode roll do not face each other in parallel.

[0110] Furthermore, in the case of using the electrode connecting apparatus according to the present invention, the adhesive tape is attached to only one surface of each of the standby electrode roll and the moving electrode roll, so that the connecting process can be simplified, and thus productivity can be improved.

Claims

1. An electrode connection device, comprising: a conveying unit (200) configured to convey the starting portion (111) of the backup electrode roll while clamping the starting portion; a guide unit (300) including a guide clamp (310) and configured to move upward while clamping the starting portion (111) of the backup electrode roll conveyed by the conveying unit with the guide clamp (310) to convey the starting portion (111) of the backup electrode roll to a first connecting unit (400); The first connecting unit (400) is configured to fix the starting portion (111) of the spare electrode roll (110) conveyed by the guiding unit (300); a second connecting unit (500) configured to fix the end portion (121) of the moving electrode roll; as well as An adhesive tape attaching unit (600) is configured to connect the backup electrode roll (110) and the movable electrode roll (120) to each other.

2. The electrode connecting device according to claim 1, wherein the conveying unit (200) is configured to have a structure capable of moving in a first direction toward the backup electrode roll (110), and moving in a second direction while clamping the two opposite side ends of the starting part (111) of the backup electrode roll, and the second direction is a direction opposite to the first direction.

3. The electrode connecting device according to claim 1, wherein the guide unit (300) moves downward, clamps the end of the starting portion (111) of the spare electrode roll and moves upward.

4. The electrode connecting device according to claim 1, wherein the first connecting unit (400) fixes the starting portion (111) of the spare electrode roll by adsorption.

5. The electrode connecting device according to claim 1, wherein the first connecting unit (400) includes a moving cutter (420) configured to cut the spare electrode roll (110).

6. The electrode connection device according to claim 5, wherein The backup electrode roll (110) is fixed to the first surface (401) of the first connecting unit (400), The movable cutter (420) is provided on a second surface (402) of the first connecting unit (400), the second surface (402) of the first connecting unit (400) being an outer surface opposite to the first surface (401) of the first connecting unit (400), and The first connecting unit is provided with a slit (410), so that the movable cutter (420) cuts the spare electrode roll (110) while moving along the slit (410).

7. An electrode connecting device according to claim 1, wherein the first connecting unit (400) is configured to have a structure in which the first connecting unit moves toward the second connecting unit (500) so that the end of the starting part (111) of the spare electrode roll is docked with the end part (121) of the movable electrode roll fixed to the second connecting unit (500).

8. The electrode connection device according to claim 1, wherein The end portion (121) of the moving electrode roll is fixed to the second surface (502) of the second connecting unit (500), and The tape attaching unit (600) is arranged on the outside of the first surface (501) of the second connecting unit (500), and the first surface (501) of the second connecting unit (500) is an outer surface opposite to the second surface (502) of the second connecting unit (500).

9. The electrode connection device according to claim 8, wherein the second connection unit (500) is provided with a penetration portion (510), and the penetration portion (510) is configured to allow the tape of the tape attaching unit (600) to pass through.

10. The electrode connection device according to claim 1, wherein the tape attaching unit (600) comprises: a supply portion (610), the supply portion (610) being configured to supply adhesive tape; an adhesive tape clamp (620) configured to transfer the adhesive tape supplied from the supply portion to an attaching portion (630); and The attaching portion (630) is configured to move to the electrode roll connecting portion where the starting portion (111) of the standby electrode roll and the end portion (121) of the movable electrode roll are connected to each other in a state where the adhesive tape is fixed. The tape clamp (620) is provided with a tape cutter configured to cut the tape.

11. An automated electrode connection method using the electrode connection device according to any one of claims 1 to 10, the automated electrode connection method comprising the following steps: (a) conveying the starting portion (111) of the backup electrode roll while holding the starting portion; (b) the guide unit (300) moves downward to clamp the starting portion (111) of the spare electrode roll and transfer the starting portion (111) of the spare electrode roll to the first connecting unit (400); (c) cutting the starting portion (111) of the spare electrode roll; as well as (d) connecting the standby electrode roll (110) and the movable electrode roll (120) to each other.

12. The automated electrode connection method according to claim 11, further comprising, after step (c): The backup electrode roll (110) is moved in a direction toward the moving electrode roll (120).

13. The automated electrode connection method according to claim 11, wherein step (d) comprises: Installing the adhesive tape (640) to the adhesive tape attaching portion (630) of the adhesive tape attaching unit (600); and The adhesive tape (640) is attached to the electrode roll connection portion where the start portion (111) of the standby electrode roll and the end portion (121) of the moving electrode roll are connected to each other.

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