Electrode plate slotting device and electrode plate slotting method using same

Abstract

The invention discloses an electrode plate slotting device and an electrode plate slotting method using the same. An electrode plate slotting device comprises a first die and a second die, wherein the first die comprises a punch hole; a second die configured to move vertically above the first die and including a punch; a first body coupled to the first die and spaced apart from the punch hole; a second body coupled to the second mold and facing the first body; a waste pusher movably disposed on the second body and configured to discharge waste from the punch hole; and a trigger disposed on the first body and configured to move the waste pusher in conjunction with the vertical movement of the second body.

Description

[0001] Cross - reference to related applications

[0002] This application claims the priority and benefit of Korean Patent Application No. 10 - 2023 - 0189867, filed with the Korean Intellectual Property Office on December 22, 2023, the entire disclosure of which is incorporated herein by reference. Technical field

[0003] Aspects of embodiments of the present disclosure relate to an electrode plate grooving device and an electrode plate grooving method using the same. Background art

[0004] Generally, with the recent rapid spread of electronic devices using batteries, such as mobile phones, laptop computers, and electric vehicles, the demand for secondary batteries with high energy density and capacity has increased rapidly. Therefore, research and development for improving the performance of lithium secondary batteries are actively underway.

[0005] A lithium secondary battery is a battery including a positive electrode, a negative electrode, and an electrolyte, each of the positive electrode and the negative electrode containing an active material capable of intercalating and deintercalating lithium ions. When lithium ions intercalate into and deintercalate from the positive electrode and the negative electrode, the lithium secondary battery generates electrical energy due to oxidation and reduction reactions.

[0006] To manufacture the positive electrode and the negative electrode, a process of grooving a continuous electrode plate at a unit pitch is necessary, where the continuous electrode plate has electrode active material applied on one or both of its sides. The grooving process is typically performed by grooving a part of the electrode sheet using a punch.

[0007] The above - mentioned information disclosed in the technology forming the background of the present disclosure is provided to improve the understanding of the background of the present disclosure and may therefore include information that does not constitute related art. Summary of the invention

[0008] According to an aspect of an embodiment of the present disclosure, there is provided an electrode plate grooving device capable of smoothly or easily discharging waste generated during grooving of an electrode plate, and an electrode plate grooving method using the same.

[0009] These and other aspects and features of the present disclosure will be described in the following description of some embodiments of the present disclosure or will be apparent from the following description of some embodiments of the present disclosure.

[0010] According to one or more embodiments, an electrode plate grooving device includes: a first mold including a punch hole; a second mold configured to move vertically above the first mold and including a punch; a first body coupled to the first mold and spaced apart from the punch hole; a second body coupled to the second mold and facing the first body; a waste pusher movably disposed on the second body and configured to discharge waste from the punch hole; and a trigger disposed on the first body and configured to move the waste pusher in combination with the vertical movement of the second body.

[0011] The waste pusher may include: a pusher body rotatably connected to the second body; a blade extending from the pusher body and configured to squeeze waste to the outside of the punch hole as the pusher body rotates in the forward direction; and a restoring member connected to the pusher body and configured to rotate the pusher body in the reverse direction.

[0012] The blade may be between the punch hole and the punch.

[0013] As the pusher body rotates in the forward direction, the blade may be movable from the punch toward the punch hole.

[0014] As the pusher body rotates in the reverse direction, the blade may be insertable into a seat groove formed concavely in the punch.

[0015] The punch hole may include a plurality of punch holes, and the blade may include a plurality of extensions facing the plurality of punch holes.

[0016] The restoring member may include: a restoring rod connected to the second body to move linearly, an end of the restoring rod being configured to contact the pusher body; and a restoring spring connected to the restoring rod and configured to press the restoring rod toward the pusher body.

[0017] The trigger may include: a trigger body rotatably connected to the first body; a guide portion on the trigger body and configured to contact the pusher body as the second body moves downward and configured to rotate the trigger body in the forward direction; a hook on the trigger body and configured to engage with the pusher body as the trigger body rotates in the reverse direction after the downward movement of the second body is completed; and a pressing member connected to the trigger body and configured to rotate the trigger body in the reverse direction.

[0018] After the hook engages with the pusher body, the hook may rotate the pusher body in the forward direction as the second body moves upward.

[0019] As the second body moves upward a certain distance or more, the hook may be separated from the waste pusher.

[0020] The pressing member may include: a pressing rod connected to the first body to linearly move, with an end portion of the pressing rod configured to contact a contact surface of the trigger body; and a pressing spring connected to the pressing rod and configured to press the pressing rod toward the trigger body.

[0021] The pressing rod may be in line contact with the contact surface.

[0022] The contact surface may include a protrusion protruding from the trigger body and facing the end portion of the pressing rod.

[0023] The surface of the protrusion may have a curved shape, and the end portion of the pressing rod may have a planar shape.

[0024] The end surface of the pressing rod may be perpendicular to the longitudinal direction of the pressing rod.

[0025] The contact surface may further include a groove recessedly formed in the trigger body.

[0026] The groove may include a pair of grooves on opposite sides of the protrusion.

[0027] The surface of the groove may have a curved shape.

[0028] According to one or more embodiments, a method for grooving an electrode plate includes moving the electrode plate between a first die and a second die, moving the second die downward, inserting a punch into a punch hole and cutting the electrode plate, moving the second die upward, and moving a waste pusher by a trigger to discharge waste from the punch hole.

[0029] In the cutting of the electrode plate, the trigger may engage with the waste pusher, and after discharging the waste from the punch hole, the trigger may disengage from the waste pusher.

[0030] According to one or more embodiments of the present disclosure, the waste remaining in the punch hole can be removed by simply vertically moving the second die using the waste pusher and the trigger, without an external power device.

[0031] According to one or more embodiments of the present disclosure, since the end portion of the pressing rod is in line contact with the contact surface of the trigger body, the amount of pressing force applied per unit area to the contact surface can be relatively reduced, and wear or damage to the contact surface can be prevented or substantially prevented.

[0032] According to one or more embodiments of the present disclosure, the end portion of the pressing rod has a planar shape, and the surface of the protrusion has a curved shape, such that the pressing rod and the protrusion can maintain a line contact state regardless of the rotation angle of the trigger body.

[0033] According to one or more embodiments of the present disclosure, the end surface of the pressing rod is disposed perpendicular to the longitudinal direction of the pressing rod, so that the central axis of the pressing rod can be prevented from being distorted or the pressing rod can be prevented from bending.

[0034] However, the aspects and effects obtainable through the present disclosure are not limited to the above aspects and effects, and those skilled in the art will clearly understand other technical aspects and effects not mentioned from the following description of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings attached to this specification illustrate some embodiments of the present disclosure, and further describe the aspects and features of the present disclosure together with the detailed description of the present disclosure. However, the present disclosure should not be construed as being limited to the drawings.

[0036] Figure 1 is a schematic perspective view showing the configuration of an electrode plate grooving device according to an embodiment of the present disclosure;

[0037] Figure 2 is a schematic cross-sectional perspective view showing the configuration of an electrode plate grooving device according to an embodiment of the present disclosure;

[0038] Figure 3 is a schematic cross-sectional view showing the configuration of an electrode plate grooving device according to an embodiment of the present disclosure;

[0039] Figure 4 and Figure 5 is a schematic plan view showing the configuration of an electrode plate grooving device according to an embodiment of the present disclosure;

[0040] Figure 6 is a schematic perspective view showing the configuration of a first body, a second body, a waste pusher, and a trigger according to an embodiment of the present disclosure;

[0041] Figure 7 is in the direction different from Figure 6 is a bottom perspective view showing the configuration of a first body, a second body, a waste pusher, and a trigger according to an embodiment of the present disclosure in a different direction;

[0042] Figure 8 is a schematic view showing the configuration of a waste pusher according to an embodiment of the present disclosure;

[0043] Figure 9 is a schematic perspective view showing the configuration of a trigger according to an embodiment of the present disclosure;

[0044] Figure 10 is a schematic cross-sectional view showing the configuration of a trigger according to an embodiment of the present disclosure;

[0045] Figure 11is a schematic flowchart showing the sequence of a method for grooving an electrode plate according to an embodiment of the present disclosure; and

[0046] Figures 12 to 17 is a schematic cross-sectional view showing a grooving process of an electrode plate according to an embodiment of the present disclosure. Detailed Embodiments

[0047] Here, some embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. The terms or words used in this specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and should be interpreted as meanings and concepts consistent with the technical idea of the present disclosure based on the principle that the inventor can be his / her own lexicographer to appropriately define the term concept.

[0048] The embodiments described in this specification and the configurations shown in the drawings are provided as some exemplary embodiments of the present disclosure, and do not necessarily represent all the technical ideas, aspects, and features of the present disclosure. Therefore, it will be understood that various equivalents and modifications of the embodiments described herein may exist at the time of filing this application.

[0049] It will be understood that when an element or layer is referred to as being "on" another element or layer, "connected to" another element or layer, or "bonded to" another element or layer, it can be directly on the other element or layer, directly connected to the other element or layer, or directly bonded to the other element or layer, or there may also be one or more intervening elements or layers. When an element or layer is referred to as being "directly on" another element or layer, "directly connected to" another element or layer, or "directly bonded to" another element or layer, there are no intervening elements or layers. For example, when a first element is described as being "bonded" or "connected" to a second element, the first element can be directly bonded or connected to the second element, or the first element can be indirectly bonded or connected to the second element via one or more intervening elements.

[0050] In the drawings, for clarity of illustration, the dimensions of various elements, layers, etc. may be exaggerated. The same reference numerals designate the same or similar elements. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Further, when describing embodiments of the present disclosure, the use of "may" refers to "one or more embodiments of the present disclosure". When following a list of elements, phrases such as "at least one of" and "any of" modify the entire list of elements and not individual elements of the list. When phrases such as "at least one of A, B, and C", "at least one of A, B, or C", "at least one selected from the group consisting of A, B, and C", or "at least one selected from A, B, and C" are used to specify a list of elements A, B, and C, the phrase can refer to any and all suitable combinations or subsets of A, B, and C, such as A, B, C, A and B, A and C, B and C, or A and B and C. As used herein, the terms "use", "using", and "being used" may be considered synonymous with the terms "utilize", "utilizing", and "being utilized", respectively. As used herein, the terms "substantially", "about", and similar terms are used as approximating terms and not as terms of degree, and are intended to account for the inherent variations in measured or calculated values that would be recognized by a person of ordinary skill in the art.

[0051] It will be understood that although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections will not be limited by these terms. These terms are used to distinguish one element, component, region, layer, or section from another element, component, region, layer, or section. Thus, a first element, component, region, layer, or section discussed below may be referred to as a second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0052] For ease of description, spatial relationship terms such as "under", "below", "lower", "above", "upper", etc. may be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures. It will be understood that the spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "under" or "below" another element or feature will be oriented "above" or "over" the other element or feature. Thus, the term "under" can encompass both an upper and a lower orientation. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatial relationship descriptors used herein should be interpreted accordingly.

[0053] The terms used herein are for the purpose of describing embodiments of the present disclosure and are not intended to limit the present disclosure. As used herein, the singular form "a" is also intended to include the plural form, unless the context clearly indicates otherwise. It will also be understood that when used in this specification, the terms "comprises," "comprising," "includes," and / or "including" specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0054] In addition, any numerical range disclosed and / or recited herein is intended to include all sub-ranges of the same numerical precision subsumed within the recited range. For example, a range of "1.0 to 10.0" is intended to include all sub-ranges between the recited minimum value of 1.0 and the recited maximum value of 10.0 (and including the recited minimum value of 1.0 and the recited maximum value of 10.0), i.e., all sub-ranges having a minimum value equal to or greater than 1.0 and a maximum value equal to or less than 10.0, such as, for example, 2.4 to 7.6. Any maximum numerical limitation recited herein is intended to include all lower numerical limitations subsumed therein, and any minimum numerical limitation recited in this specification is intended to include all higher numerical limitations subsumed therein. Accordingly, the applicant reserves the right to modify this specification (including the claims) to expressly recite any sub-ranges subsumed within the ranges expressly recited herein.

[0055] Referring two compared elements, features, etc. as "the same" may mean that they are identical or substantially the same. Thus, the phrase "the same" or "substantially the same" may include cases having a deviation considered low in the art (e.g., a deviation of 5% or less). In addition, when a certain parameter is said to be uniform in a given region, this may mean that it is uniform in terms of the average value.

[0056] Throughout the specification, each element may be singular or plural unless otherwise stated.

[0057] When any element is said to be disposed (or positioned or located) "above (or below)" or "on (or under)" a component, this may mean that the any element is placed in contact with the upper (or lower) surface of the component, and may also mean that another component may be interposed between the component and any element disposed (or positioned or located) "above (or below)" or "on (or under)" the component.

[0058] In addition, it will be understood that when an element is referred to as being "coupled", "linked", or "connected" to another element, these elements can be "coupled", "linked", or "connected" directly to each other, or there can be one or more intervening elements therebetween, and the elements can be "coupled", "linked", or "connected" to the other element through the one or more intervening elements. In addition, when a part is referred to as being "electrically coupled" to another part, the part can be directly electrically connected to the other part, or there can be one or more intervening parts therebetween such that the part and the other part are indirectly electrically connected to each other.

[0059] Throughout the specification, when stating "A and / or B", this means A, B, or A and B, unless otherwise specified. That is, "and / or" includes any or all combinations of the recited multiple items. When stating "C to D", this means C or more and D or less, unless otherwise specified.

[0060] The terms used in this specification are for describing embodiments of the present disclosure and are not intended to limit the present disclosure.

[0061] Figure 1 is a schematic perspective view showing the configuration of an electrode plate grooving device according to an embodiment of the present disclosure; Figure 2 is a schematic cross-sectional perspective view showing the configuration of an electrode plate grooving device according to an embodiment of the present disclosure; Figure 3 is a schematic cross-sectional view showing the configuration of an electrode plate grooving device according to an embodiment of the present disclosure; Figure 4 and Figure 5 is a schematic plan view showing the configuration of an electrode plate grooving device according to an embodiment of the present disclosure.

[0062] Referring to Figures 1 to 5 , the electrode plate grooving device according to an embodiment includes a first mold 100, a second mold 200, a first body 300, a second body 400, a waste pusher 500, and a trigger 600.

[0063] The first mold 100 forms the lower outer appearance of the electrode plate grooving device and can support the first body 300 described below.

[0064] The first mold 100 may include a first base 110, a first retainer 120, and a die 130.

[0065] In an embodiment, the first base 110 may be formed in a rigid body shape having a substantially quadrilateral cross-section. The first base 110 can be fixed to the ground or a separate structure (not shown) by any of various coupling methods (such as any of a welding method, a bolt connection method, and a fitting coupling method). However, the specific shape of the first base 110 is not limited toFigures 1 to 5 For the shape shown, design changes to any of various shapes are possible.

[0066] The discharge hole 111 passing through the upper surface and the lower surface of the first base 110 may be formed in the first base 110.

[0067] The first holder 120 may be seated on the first base 110. The cross-sectional area of the first holder 120 may be formed to be smaller than the cross-sectional area of the first base 110. The first holder 120 may be fixed to the first base 110 by any of various joining methods such as a welding method, a bolt connection method, and a fitting joining method. The upper surface of the first holder 120 may have a flat shape parallel to the X-Y plane based on Figure 1 However, the specific shape of the first holder 120 is not limited to Figures 1 to 5 the shape shown, and design changes to any of various shapes are possible.

[0068] The entry hole 121 may be formed to be recessed in a concave shape into the interior of the first holder 120 in the side surface of the first holder 120. The upper surface of the entry hole 121 is open and may be connected to the space above the first holder 120.

[0069] The first mold 100 may support the electrode plate 10 conveyed in the first direction. In an embodiment, the first direction may be any direction parallel to the X-axis based on Figure 1

[0070] The electrode plate 10 may be formed to have a foil shape with a thin thickness. The electrode plate 10 may be made of a conductive material such as copper, a copper alloy, nickel, a nickel alloy, aluminum, or an aluminum alloy. The length of the electrode plate 10 may continuously extend in the first direction. The lower surface of the electrode plate 10 may be arranged to face the upper surface of the first holder 120. The lower surface of the electrode plate 10 may be arranged to be in direct contact with the upper surface of the first holder 120, or may be arranged to be spaced apart from the upper surface of the first holder 120 by a distance (e.g., a predetermined distance).

[0071] Both ends or opposite ends of the electrode plate 10 may be wound or unwound on a conveying roller (not shown) and may be conveyed in the first direction. In an embodiment, the electrode plate 10 may be gradually conveyed in the first direction by a certain distance (e.g., a set distance). For example, the operation of conveying the electrode plate 10 in the first direction by a certain distance and then stopping the conveyance of the electrode plate 10 for a certain time (e.g., a set time) may be repeatedly performed.

[0072] The electrode plate 10 may include a first region 11 and a second region 12.

[0073] ​The first region 11 may be a region of the electrode plate 10 (e.g., the entire region) coated with the active material C. As an example, the first region 11 may be a central region of the electrode plate 10 (e.g., the entire region) coated with the active material C.

[0074] The active material C may be a positive electrode active material capable of reversibly intercalating and deintercalating lithium ions or a negative electrode active material capable of reversibly intercalating and deintercalating lithium ions. The positive electrode active material may include one or more of composite oxides of lithium and metals selected from cobalt, manganese, nickel, and combinations thereof. The negative electrode active material may include crystalline carbon, amorphous carbon, or a combination thereof.

[0075] The second region 12 may be a region of the electrode plate 10 (e.g., the entire region) not coated with the active material C. As an example, the second region 12 may be a region at the end of the electrode plate 10 that protrudes from the first region 11 in a direction parallel to the second direction in the region of the electrode plate 10 (e.g., the entire region). The second direction may be a direction intersecting the first direction, for example, a direction perpendicular to the first direction and the vertical direction, i.e., a direction parallel to the Figure 1 Y-axis based on the direction from the first region 11 toward the second region 12.

[0076] The die 130 may be mounted on the first base 110, and at least some regions of the die 130 may be set to face the second region 12. The die 130 may be used together with the punch 230 described below as a component for determining the processed shape of the second region 12.

[0077] As an example, the die 130 may be disposed inside the first holder 120. The upper surface of the die 130 may be exposed to the external space of the first holder 120 through the upper surface of the first holder 120. The upper surface of the die 130 may be located in the same plane as the upper surface of the first holder 120. A part of the upper surface of the die 130 may be set to face the first region 11 of the electrode plate 10, and the remaining part may be set to face the second region 12 of the electrode plate 10. The side surface of the die 130 may be set to face the end surface of the entry hole 121 formed to be recessed concavely in the side surface of the first holder 120. In an embodiment, the cross-sectional shape of the die 130 may be variously designed depending on the shape of the punch hole 131 described below.

[0078] The die 130 may include a punch hole 131.

[0079] The punch hole 131 can be used together with the punch 230 as a component for determining the area of the second area 12 of the electrode plate 10 to be cut. As an example, the punch hole 131 can be formed in the shape of a hole vertically passing through the die 130. The punch hole 131 can be provided at a position in the area of the die 130 (e.g., the entire area) facing the second area 12 of the electrode plate 10. The longitudinal direction of the punch hole 131 can be set perpendicular to the first direction. The lower end of the punch hole 131 can be connected to the discharge hole 111 vertically passing through the first base 110. The end of the punch hole 131 can pass through the side surface of the die 130 facing the entry hole 121 and can be connected to the entry hole 121.

[0080] The punch holes 131 can be provided as a plurality of punch holes 131. The plurality of punch holes 131 can be separately provided from each other in the first direction.

[0081] The second die 200 forms the upper exterior of the electrode plate grooving device and can support the second body 400. The second die 200 can be installed or arranged to vertically move above the first die 100.

[0082] The second die 200 can include a second base 210, a second holder 220, and a punch 230.

[0083] In an embodiment, the second base 210 can be formed in the shape of a rigid body having a substantially quadrilateral cross-section. The second base 210 can be provided above the first die 100. In an embodiment, the second base 210 can be connected to a separate power device (not shown), such as a press or a cylinder, and can vertically move up and down by the driving force generated from the power device.

[0084] The first guide post G1 can be installed between the first base 110 and the second base 210 to guide the vertical movement of the second base 210. The first guide post G1 can have a column shape with its longitudinal direction extending in the vertical direction. The lower end and the upper end of the first guide post G1 can be respectively connected to the first base 110 and the second base 210. In an embodiment, the first guide post G1 can have a telescopic structure, the length of which is variable according to the vertical movement of the second base 210. As the second base 210 moves upward by a distance (e.g., a predetermined distance), the first guide post G1 can vertically elongate. A spring can be installed at the first guide post G1 to return the second base 210 to its initial position when the external force applied to the second base 210 is removed.

[0085] The first guide posts G1 can be provided as a plurality of first guide posts G1. The plurality of first guide posts G1 can be provided at the corners of the first base 110 and the second base 210.

[0086] The second retainer 220 may be disposed below the second base 210 to face the first retainer 120. The cross-sectional area of the second retainer 220 may be formed to be smaller than the cross-sectional area of the second base 210. The second retainer 220 may be fixed to the second base 210 by any of various coupling methods such as a welding method, a bolt connection method, and a fitting coupling method. When the second base 210 moves vertically, the second retainer 220 may move vertically together with the second base 210. The lower surface of the second retainer 220 may have a flat shape parallel to the X-Y plane based on Figure 1 of.

[0087] The second guide post G2 may be installed between the first retainer 120 and the second retainer 220 to guide the vertical movement of the second retainer 220. The second guide post G2 may have a column shape whose longitudinal direction extends in the vertical direction. The lower end portion and the upper end portion of the second guide post G2 may be connected to the first retainer 120 and the second retainer 220, respectively. In an embodiment, the second guide post G2 may have a telescopic structure whose length is variable according to the vertical movement of the second retainer 220. The second guide post G2 may be provided to vertically elongate as the second retainer 220 moves upward a distance (e.g., a predetermined distance). A spring may be installed at the second guide post G2 to return the second retainer 220 to its initial position when an external force applied to the second retainer 220 is removed.

[0088] The second guide post G2 may be provided as a plurality of second guide posts G2. The plurality of second guide posts G2 may be disposed at the corners of the first retainer 120 and the second retainer 220.

[0089] The punch 230 may be fixed to the second retainer 220 and disposed to face the punch hole 131.

[0090] As an example, the punch 230 may be fixed to the lower surface of the second retainer 220 by any of various coupling methods such as a welding method, a bolt connection method, and a fitting coupling method. The lower end portion of the punch 230 may protrude to the lower side of the second retainer 220. The lower surface of the punch 230 may be disposed to face the upper surface of the punch hole 131.

[0091] When the second retainer 220 moves vertically, the punch 230 may move vertically together with the second retainer 220. As the second mold 200 moves downward, the punch 230 is inserted into the punch hole 131 and cuts the second region 12 so that the electrode tab can be formed on the electrode plate 10.

[0092] In an embodiment, the cross-sectional shape of the punch 230 may have a shape corresponding to the cross-sectional shape of the punch hole 131. Accordingly, when the punch 230 is inserted into the punch hole 131, the punch 230 may cut the second region 12 according to the cross-sectional shape of the punch hole 131.

[0093] The seat groove 231 may be formed to be recessed upwardly concavely in the lower surface of the punch 230.

[0094] The first body 300 is coupled to the first mold 100 and may serve as a component for supporting a trigger 600, which will be described below.

[0095] Figure 6 is a schematic perspective view showing the configurations of a first body, a second body, a waste pusher, and a trigger according to an embodiment of the present disclosure; Figure 7 is in Figure 6 a bottom perspective view showing the configurations of a first body, a second body, a waste pusher, and a trigger according to an embodiment of the present disclosure in a different direction.

[0096] Referring to Figures 1 to 7 , in an embodiment, the first body 300 may be formed to have a substantially box shape. The first body 300 may be seated on the first base 110. The lower surface of the first body 300 may be fixed to the upper surface of the first base 110 by any one of various coupling methods such as a welding method, a bolt connection method, and a fitting coupling method. The first body 300 may be spaced apart from the punch hole 131. In an embodiment, the first body 300 may be disposed to be spaced apart from the punch hole 131 by a distance (e.g., a predetermined distance) in a direction perpendicular to the first direction (Y-axis direction based on Figure 1 ) through an entry hole 121 formed in a side surface of the first holder 120 so as to face the punch hole 131.

[0097] The second body 400 is coupled to the second mold 200 and may serve as a component for supporting a waste pusher 500, which will be described below. When the second mold 200 moves vertically, the second body 400 may move vertically together with the second mold 200.

[0098] As an example, the second body 400 may be formed to have a substantially box shape. The upper surface of the second body 400 may be fixed to the lower surface of the second base 210 by any one of various coupling methods such as a welding method, a bolt connection method, and a fitting coupling method. The second body 400 may be spaced apart from the punch 230. In an embodiment, the second body 400 may be in a direction perpendicular to the first direction (based on Figure 1It is spaced apart from the side surface of the second holder 220 by a distance (e.g., a predetermined distance) in the Y-axis direction and is arranged to face the second holder 220. The lower surface of the second body 400 may be arranged to vertically face the upper surface of the first body 300.

[0099] The waste pusher 500 may be movably mounted on the second body 400. After the second region 12 of the electrode plate 10 is cut, the waste pusher 500 may move relative to the second body 400 and discharge the waste remaining in the punch hole 131 from the punch hole 131. Accordingly, the waste pusher 500 may prevent or substantially prevent the grooving quality and efficiency of the electrode plate 10 from being reduced due to the waste remaining in the punch hole 131.

[0100] Figure 8 is a schematic view showing the configuration of the waste pusher according to an embodiment of the present disclosure.

[0101] Referring to Figures 1 to 8 , in an embodiment, the waste pusher 500 may include a pusher body 510, a blade 520, and a restoring member 530.

[0102] The pusher body 510 according to the embodiment may be formed in a plate shape having its longitudinal direction arranged in a direction perpendicular to the first direction (based on Figure 1 the Y-axis direction). One side of the pusher body 510 may be inserted into the second body 400. The other side of the pusher body 510 may protrude outward from the second body 400 and extend toward the punch 230. The lower surface of the other side of the pusher body 510 may be arranged to face the upper surface of the inlet hole 121.

[0103] The pusher body 510 may be rotatably connected to the second body 400 through a pusher shaft 501. The pusher shaft 501 may be formed in a cylindrical rod shape to pass through the pusher body 510. Two ends or opposite ends of the pusher shaft 501 may protrude from both sides of the pusher body 510 and may be connected to the second body 400. The longitudinal direction of the pusher shaft 501 may be arranged parallel to the first direction (based on Figure 1 the X-axis direction).

[0104] The pusher body 510 may rotate in a forward or reverse direction about the central axis of the pusher shaft 501. Here, the pusher body 510 rotating in the forward direction may mean that the pusher body 510 rotates counterclockwise about the central axis of the pusher shaft 501 based on Figure 3 In addition, the pusher body 510 rotating in the reverse direction may mean that the pusher body 510 rotates clockwise about the central axis of the pusher shaft 501 based on Figure 3Rotate clockwise about the central axis of the pusher shaft 501. The pusher body 510 may rotate together with the pusher shaft 501, or alternatively, the pusher body 510 may rotate separately from the pusher shaft 501.

[0105] The pusher body 510 may include a connecting rod 511 that is connected to or disconnected from a trigger 600, which will be described below, by the vertical movement of the second body 400.

[0106] The connecting rod 511 according to an embodiment may be formed to have a shaft shape with a circular cross-section. The connecting rod 511 may be inserted into a through-hole 512 that vertically penetrates the pusher body 510. The longitudinal direction of the connecting rod 511 may be arranged parallel to the pusher shaft 501. In an embodiment, both ends or opposite ends of the connecting rod 511 may be integrally fixed to the pusher body 510 by any of various joining methods such as a welding method, a bolt connection method, and a fitting joining method.

[0107] The blade 520 extends from the pusher body 510 and may serve as a component for removing waste from the punch hole 131 due to the rotational movement of the pusher body 510.

[0108] As an example, the blade 520 may be connected to an end of the pusher body 510 on the other side that protrudes outward from the second body 400. The blade 520 may be disposed between the punch hole 131 and the punch 230. When the second die 200 moves vertically, the blade 520 may move vertically together with the second body 400 and the pusher body 510.

[0109] As the second body 400 moves downward by a certain distance (e.g., a set distance) or more, the blade 520 may be inserted into the punch hole 131 together with the punch 230. The blade 520 may have a shape that can be smoothly or easily inserted into the punch hole 131. For example, the blade 520 may include a blade body 521 connected to the pusher body 510 and a plurality of extension portions 522 that extend from the blade body 521 and are arranged to face the plurality of punch holes 131. In an embodiment, the area of each extension portion 522 may be smaller than the area of the corresponding punch hole 131.

[0110] In a state where the blade 520 is inserted into the punch hole 131, as the pusher body 510 rotates in the forward direction, the blade 520 may move in a direction from the punch 230 toward the punch hole 131. As the blade 520 moves toward the punch hole 131, the blade 520 may squeeze the waste to the outside of the punch hole 131, and in an embodiment, to the lower side of the punch hole 131. Therefore, the waste may be discharged to the outside of the punch hole 131 through a discharge hole 111 connected to the lower end of the punch hole 131.

[0111] As the pusher body 510 rotates in the reverse direction, the blade 520 can be inserted into the seat groove 231 formed concave in the punch 230 from the lower surface of the punch 230. Therefore, when the punch 230 is inserted into the punch hole 131 and the electrode plate 10 is cut, the blade 520 does not directly contact the electrode plate 10, thereby preventing or substantially preventing a reduction in the cutting quality of the electrode plate 10. The initial position of the blade 520 described below may mean the state in which the blade 520 is inserted into the seat groove 231.

[0112] The restoring member 530 may be connected to the pusher body 510 to rotate the pusher body 510 in the reverse direction. That is, when no separate external force is applied to the pusher body 510, the restoring member 530 can act as a component for positioning the blade 520 in the initial position by suppressing the forward rotation of the pusher body 510. In addition, after the pusher body 510 rotates in the forward direction, the restoring member 530 can act as a component for returning the blade 520 to the initial position as the external force that causes the pusher body 510 to rotate in the forward direction is removed.

[0113] The restoring member 530 may include a restoring rod 531 and a restoring spring 532.

[0114] The restoring rod 531 may be connected to the second body 400 to linearly move. As an example, the restoring rod 531 may be formed in a substantially rod shape. The restoring rod 531 may be vertically slidably connected to the second body 400. The blade 520 and the restoring rod 531 may be separately provided, and the pusher shaft 501 may be interposed between the blade 520 and the restoring rod 531 in the longitudinal direction of the pusher body 510. The lower end of the restoring rod 531 may contact the upper surface of the side of the pusher body 510 inserted into the second body 400.

[0115] The restoring spring 532 may be connected to the restoring lever 531 and may press the restoring lever 531 toward the pusher body 510. As an example, the restoring spring 532 may include a coil spring that is stretchable in the longitudinal direction. The longitudinal direction of the restoring spring 532 may be set parallel to the longitudinal direction of the restoring lever 531 (i.e., the vertical direction). Two ends or opposite ends of the restoring spring 532 may be connected to the restoring lever 531 and the second body 400, respectively. When the pusher body 510 rotates in the forward direction, the restoring spring 532 may be compressed in the longitudinal direction to accumulate elastic restoring force, and may press one side of the pusher body 510 downward by the accumulated elastic restoring force. Accordingly, when no separate external force is applied to the pusher body 510, the pusher body 510 may rotate in the reverse direction by the elastic force of the restoring spring 532. When the blade 520 is in the initial position, the restoring spring 532 may be installed in a compressed state in the longitudinal direction. Accordingly, in an embodiment, the restoring spring 532 may always apply a rotational force in the reverse direction to the pusher body 510.

[0116] The trigger 600 may be installed in the first body 300 and may move the waste pusher 500 in combination with the vertical movement of the second body 400. That is, the trigger 600 may serve as a component for converting the vertical movement of the second body 400 into a movement for rotating the pusher body 510 around the pusher shaft 501 in the forward direction. Accordingly, the trigger 600 may enable the waste pusher 500 to remove the waste remaining in the punch hole 131 during the grooving process of the electrode plate 10 without a separate power device.

[0117] Figure 9 is a schematic perspective view showing a configuration of a trigger according to an embodiment of the present disclosure; Figure 10 is a schematic cross-sectional view showing a configuration of a trigger according to an embodiment of the present disclosure.

[0118] Referring to Figures 1 to 10 , the trigger 600 may include a trigger body 610, a guide portion 620, a hook 630, and a pressing member 640.

[0119] In an embodiment, a lower end portion of the trigger body 610 may be formed in a shape of a rod inserted into the first body 300. An upper end portion of the trigger body 610 may pass through an upper surface of the first body 300 and protrude upward from the first body 300. The upper end portion of the trigger body 610 may be disposed to vertically face a connection rod 511 and a through hole 512 formed in the pusher body 510.

[0120] The trigger body 610 may be rotatably connected to the first body 300 via a trigger shaft 601. In an embodiment, the trigger shaft 601 may be formed in a shape of a cylindrical rod to pass through the trigger body 610. Two ends or opposite ends of the trigger shaft 601 may protrude from both sides or opposite sides of the trigger body 610 and may be connected to the first body 300. In an embodiment, the longitudinal direction of the trigger shaft 601 may be set parallel to the first direction (based on Figure 1 the X-axis direction of

[0121] The trigger body 610 may rotate in a forward or reverse direction about the central axis of the trigger shaft 601. Here, the trigger body 610 rotating in the forward direction may mean that the trigger body 610 rotates clockwise about the central axis of the trigger shaft 601 based on Figure 3 In addition, the trigger body 610 rotating in the reverse direction may mean that the trigger body 610 rotates counterclockwise about the central axis of the trigger shaft 601 based on Figure 3 The trigger body 610 may rotate together with the trigger shaft 601, or alternatively, the trigger body 610 may rotate separately from the trigger shaft 601.

[0122] The guide portion 620 may be provided on the trigger body 610, and as the second body 400 moves downward, the guide portion 620 may contact the pusher body 510 to rotate the trigger body 610 in the forward direction. That is, when the second body 400 moves downward, the guide portion 620 may serve as a component for adjusting the mounting angle of the trigger body 610 to allow the hook 630 described below to engage with the pusher body 510.

[0123] The guide portion 620 according to an embodiment may be provided on the upper end portion of the trigger body 610 facing the connecting rod 511. The guide portion 620 may protrude from the upper end portion of the trigger body 610 in a direction crossing the longitudinal direction of the trigger body 610. The end portion of the guide portion 620 may be set to face the space between the die 130 and the punch 230. When the second body 400 moves downward, the upper surface of the guide portion 620 may contact the outer peripheral surface of the connecting rod 511.

[0124] In an embodiment, the upper surface of the guide portion 620 may be set to be inclined with respect to the direction of the vertical movement of the second body 400 (i.e., the vertical direction). As an example, the upper surface of the guide portion 620 may be set to incline downward toward the end portion of the guide portion 620. Therefore, when the guide portion 620 contacts the connecting rod 511, the downward force of the second body 400 may be converted into a rotational force for rotating the trigger body 610 in the forward direction through the inclination angle of the upper surface of the guide portion 620.

[0125] As the trigger body 610 rotates at an angle (e.g., a set angle) or more in the forward direction, the upper surface of the guide portion 620 can be separated from the connecting rod 511, and the connecting rod 511 can be moved below the guide portion 620 by the downward movement of the second body 400.

[0126] The hook 630 is provided on the trigger body 610, and after the downward movement of the second body 400 is completed, the trigger body 610 can rotate in the reverse direction to be fastened to the pusher body 510. After the hook 630 is fastened to the pusher body 510, as the second body 400 moves upward, the hook 630 can cause the pusher body 510 to rotate in the forward direction. That is, the hook 630 can function as a component for converting the upward movement of the second body 400 into the forward rotation of the pusher body 510.

[0127] The hook 630 according to an embodiment can be provided on the lower side of the guide portion 620. The hook 630 can protrude from the side surface of the trigger body 610 in a direction crossing the longitudinal direction of the trigger body 610. The end portion of the hook 630 can be provided to face the space between the die 130 and the punch 230.

[0128] The lower surface of the hook 630 can be provided to be inclined with respect to the direction of the vertical movement of the second body 400 (i.e., the vertical direction). As an example, the lower surface of the hook 630 can be provided to be inclined upward toward the end portion of the hook 630.

[0129] As the connecting rod 511 is moved below the guide portion 620 by a certain distance (e.g., a set distance) or more due to the forward rotation of the trigger body 610, the lower surface of the hook 630 can be provided to face the outer peripheral surface of the connecting rod 511. In this state, as the trigger body 610 rotates in the reverse direction by a certain angle (e.g., a set angle) or more by the pressing member 640 described below, the lower surface of the hook 630 can contact the outer peripheral surface of the connecting rod 511 and can be fastened to the connecting rod 511. Thereafter, as the second body 400 moves upward, the hook 630 can press the connecting rod 511 downward to cause the pusher body 510 to rotate in the forward direction.

[0130] In an embodiment, the guide portion 620 and the hook 630 can be integrally formed. In an embodiment, the lower surface of the guide portion 620 and the lower surface of the hook 630 are located on the same plane, and the end portion of the guide portion 620 and the end portion of the hook 630 can be in contact with each other on the same straight line. In an embodiment, the guide portion 620 and the hook 630 can each have a convex shape having a cross-sectional area that gradually narrows by extending from the upper end of the trigger body 610 toward the space between the die 130 and the punch 230.

[0131] In an embodiment, the inclination angle of the upper surface of the guiding part 620 and the inclination angle of the lower surface of the hook 630 may be the same, but optionally, they may be formed differently.

[0132] The pressing member 640 may be connected to the trigger body 610 to rotate the trigger body 610 in the reverse direction. That is, when no separate external force is applied to the trigger body 610, the pressing member 640 may act as a component for maintaining the mounting angle of the trigger body 610 at the initial angle by suppressing the forward rotation of the trigger body 610. In addition, after the trigger body 610 rotates in the forward direction through the guiding part 620, the pressing member 640 may act as a component for bringing the hook 630 into close contact with the connecting rod 511 by forcing the trigger body 610 to rotate in the reverse direction. Therefore, when the second body 400 moves upward, the pressing member 640 can prevent or substantially prevent the pusher body 510 from rotating smoothly due to the unintentional release of the engagement between the hook 630 and the connecting rod 511.

[0133] The pressing member 640 may include a pressing rod 641 and a pressing spring 642.

[0134] The pressing rod 641 may be connected to the first body 300 to move linearly. As an example, the pressing rod 641 may be formed in a substantially rod shape. The pressing rod 641 may be slidably connected to the first body 300 in a direction crossing the first direction.

[0135] An end of the pressing rod 641 may contact a contact surface 611 of the trigger body 610. The contact surface 611 may be provided on a side surface (e.g., the right surface based on Figure 10 ) of the trigger body 610, which is on the side opposite to the guiding part 620 and the hook 630 among the two surfaces of the trigger body 610 parallel to the first direction. The pressing rod 641 may rotate the trigger body 610 in the reverse direction by pressing the contact surface 611 using the pressing spring 642 described below.

[0136] In an embodiment, the end of the pressing rod 641 may be in line contact with the contact surface 611 of the trigger body 610. Therefore, compared with the case where the pressing rod 641 is in point contact with the contact surface 611, the magnitude of the pressing force applied to the contact surface 611 per unit area can be reduced, thereby preventing or substantially preventing wear or damage to the contact surface 611.

[0137] As an example, the contact surface 611 of the trigger body 610 may include a protrusion 612.

[0138] The protrusion 612 can protrude from the trigger body 610 toward the end of the pressing lever 641. In an embodiment, the surface of the protrusion 612 may have a curved shape. In an embodiment, as Figure 9 and Figure 10 shown, the protrusion 612 may be formed to have a semi-circular cross-section or an arcuate cross-section about a central axis in a direction parallel to the first direction.

[0139] In an embodiment, the end of the pressing lever 641 that contacts the surface of the protrusion 612 may be formed to have a planar shape. Therefore, regardless of the rotation angle of the trigger body 610, the contact area between the end of the pressing lever 641 and the surface of the protrusion 612 can maintain a straight shape.

[0140] The end surface of the pressing lever 641 may be provided perpendicular to the longitudinal direction of the pressing lever 641. Therefore, the reaction force generated between the pressing lever 641 and the contact surface 611 is transmitted in a direction parallel to the longitudinal direction of the pressing lever 641, thereby preventing or substantially preventing the phenomenon of the central axis of the pressing lever 641 being distorted or the pressing lever 641 being bent.

[0141] In an embodiment, the contact surface 611 may further include a groove 613.

[0142] The groove 613 may have a shape of a groove formed concavely from the surface of the trigger body 610, and the protrusion 612 is formed in the trigger body 610 at this surface. The groove 613 may be provided as a pair of grooves 613. The pair of grooves 613 may be vertically spaced apart, and the protrusion 612 is inserted therebetween. In an embodiment, the pair of grooves 613 may be symmetrically provided on both sides or opposite sides of the protrusion 612. Therefore, when the trigger body 610 rotates, the groove 613 can prevent or substantially prevent the end of the pressing lever 641 from contacting both sides of the protrusion 612, and prevent or substantially prevent the rotation range of the trigger body 610 from being limited.

[0143] In an embodiment, the surface of the groove 613 may have a curved shape. In an embodiment, as Figure 9 and Figure 10 shown, the groove 613 may be formed to have a semi-circular cross-section or an arcuate cross-section about a central axis in a direction parallel to the first direction. In an embodiment, the surface of the protrusion 612 and the surface of the groove 613 may be formed to form a wavy shape in the vertical direction.

[0144] The pressing spring 642 can be connected to the pressing rod 641 and can press the pressing rod 641 toward the trigger body 610. As an example, the pressing spring 642 can include a coil spring that is stretchable in the longitudinal direction. The longitudinal direction of the pressing spring 642 can be set parallel to the longitudinal direction of the pressing rod 641. Two ends or opposite ends of the pressing spring 642 can be connected to the pressing rod 641 and the first body 300, respectively. When the trigger body 610 rotates in the forward direction, the pressing spring 642 can be compressed in the longitudinal direction to accumulate elastic restoring force, and can press the pressing rod 641 toward the trigger body 610 through the accumulated elastic restoring force. Therefore, when no separate external force is applied to the trigger body 610, the trigger body 610 can rotate in the reverse direction by the elastic force of the pressing spring 642. When the trigger body 610 is in the initial position, the pressing spring 642 can be installed in a compressed state in the longitudinal direction. Therefore, the pressing spring 642 can always apply a rotational force in the reverse direction to the trigger body 610.

[0145] Here, a method for grooving an electrode plate according to an embodiment of the present disclosure will be described.

[0146] Figure 11 is a schematic flowchart showing the sequence of a method for grooving an electrode plate according to an embodiment of the present disclosure; Figures 12 to 17 is a schematic cross-sectional view showing a grooving process of an electrode plate according to an embodiment of the present disclosure.

[0147] Referring to Figure 11 and Figure 12 , the electrode plate 10 is moved a certain distance (e.g., a set distance) in the first direction between the first mold 100 and the second mold 200 (S100).

[0148] In an embodiment, operation S100 can be performed by winding the electrode plate 10 around a conveying roller (not shown).

[0149] Then, the second mold 200 moves downward to the first mold 100 (S200).

[0150] Referring to Figure 13 and

[0151] As the second mold 200 moves downward, the punch 230 is inserted into the punch hole 131 and cuts the second region 12 of the electrode plate 10 (S300).

[0152] Referring to Figure 14 and Figure 15, in operation S300, the trigger 600 can engage with the waste pusher 500.

[0153] In an embodiment, as the second mold 200 moves downward, the second body 400 and the pusher body 510 move downward together with the second mold 200.

[0154] As the pusher body 510 moves downward by a certain distance (e.g., a set distance) or more, the upper surface of the guide portion 620 contacts the lower outer peripheral surface of the connecting rod 511.

[0155] The downward force of the second body 400 is converted into a rotational force for rotating the trigger body 610 in the forward direction (clockwise direction based on Figure 14 ), and the trigger body 610 rotates in the forward direction by this rotational force.

[0156] As the trigger body 610 rotates in the forward direction by a certain angle (e.g., a set angle) or more, the upper surface of the guide portion 620 can be separated from the connecting rod 511, and the connecting rod 511 moves below the guide portion 620 due to the downward movement of the second body 400.

[0157] During this process, the pressing spring 642 is compressed in the longitudinal direction and can accumulate elastic restoring force.

[0158] As the connecting rod 511 moves below the guide portion 620 by a certain distance (e.g., a set distance) or more due to the forward rotation of the trigger body 610, the lower surface of the hook 630 can be set to face the outer peripheral surface of the connecting rod 511.

[0159] The pressing spring 642 presses the pressing rod 641 toward the trigger body 610 by the accumulated elastic restoring force.

[0160] The trigger body 610 rotates in the reverse direction (counterclockwise direction based on Figure 15 ) by the pressing force applied from the pressing rod 641.

[0161] As the trigger body 610 rotates in the reverse direction by a set angle or more, the lower surface of the hook 630 can contact the upper outer peripheral surface of the connecting rod 511 and can be fastened to the connecting rod 511.

[0162] The hook 630 can be held in a state of contacting the connecting rod 511 by the pressing force applied from the pressing rod 641.

[0163] Refer to Figure 16, after operation S300, the second die 200 moves upward (S400), and the trigger 600 moves the waste pusher 500 to discharge waste from the punch hole 131 (S500).

[0164] In an embodiment, as the second die 200 moves upward, the second body 400 moves upward together with the second die 200.

[0165] The hook 630 presses the connecting rod 511 downward, and the pusher body 510 rotates in the forward direction (counterclockwise direction based on Figure 16 ) around the pusher shaft 501 by the pressing force.

[0166] As the pusher body 510 rotates in the forward direction, the blade 520 moves in the direction from the punch 230 toward the punch hole 131 to squeeze the waste to the lower side of the punch hole 131.

[0167] The waste remaining in the punch hole 131 is discharged to the outside of the punch hole 131 through the discharge hole 111 by the squeezing force applied from the blade 520.

[0168] Referring to Figure 17 , after operation S500, as the second die 200 moves upward a certain distance (e.g., a set distance) or more, the connecting rod 511 separates from the hook 630 due to the inclination angle of the lower surface of the hook 630, and the trigger 600 separates from the waste pusher 500.

[0169] As the trigger 600 separates from the waste pusher 500, the pusher body 510 rotates in the reverse direction (clockwise direction based on Figure 17 ) by the pressing force applied from the restoring rod 531 and returns to its initial position.

[0170] Thereafter, the above process can be repeatedly executed until the grooving process for the electrode plate 10 is completed.

[0171] Although the present disclosure has been described with reference to some embodiments shown in the drawings, these embodiments are merely illustrative, and it will be understood that those skilled in the art can derive various modifications and equivalent other embodiments based on these embodiments. Therefore, the technical scope of the present disclosure should be defined by the appended claims.

Claims

1. An electrode plate slotting device, comprising: A first die including a punch hole; a second die configured to move vertically above the first die and comprising a punch; a first body coupled to the first die and spaced apart from the punch hole; a second body coupled to the second mold and facing the first body; a waste pusher movably disposed on the second body and configured to discharge waste from the punch hole; as well as A trigger is disposed on the first body and is configured to move the waste pusher in conjunction with vertical movement of the second body.

2. The electrode plate slotting device according to claim 1, wherein: The waste pusher comprises: a pusher body rotatably connected to the second body; a blade extending from the pusher body and configured to squeeze the waste material outside the punch hole as the pusher body rotates in a forward direction; and A restoration member is connected to the pusher body and is configured to rotate the pusher body in a reverse direction.

3. The electrode plate slotting device according to claim 2, wherein: The blade is between the punch hole and the punch.

4. The electrode plate slotting device according to claim 3, wherein: As the pusher body rotates in the forward direction, the blade may move from the punch toward the punch hole.

5. The electrode plate slotting device according to claim 3, wherein: As the pusher body rotates in the reverse direction, the blade may be inserted into a seating groove concavely formed in the punch.

6. The electrode plate slotting device according to claim 3, wherein The punch hole includes a plurality of punch holes, and The blade includes a plurality of extensions facing the plurality of punch holes.

7. The electrode plate slotting device according to claim 2, wherein: The recovery component comprises: a restoration rod connected to the second body to move linearly, an end of the restoration rod being configured to contact the pusher body; and A restoring spring is connected to the restoring rod and is configured to press the restoring rod toward the pusher body.

8. The electrode plate slotting device according to claim 2, wherein: The triggers include: a trigger body rotatably connected to the first body; a guide portion on the trigger body and configured to contact the pusher body as the second body moves downward and configured to rotate the trigger body in a forward direction; a hook on the trigger body and configured to engage with the pusher body as the trigger body rotates in a reverse direction after the downward movement of the second body is completed; and A pressing member is connected to the trigger body and is configured to rotate the trigger body in the reverse direction.

9. The electrode plate slotting device according to claim 8, wherein: After the hook is engaged with the pusher body, the hook is configured to rotate the pusher body in the forward direction as the second body moves upward.

10. The electrode plate slotting device according to claim 9, wherein: As the second body moves upward by a certain distance or more, the hook may be separated from the waste pusher.

11. The electrode plate slotting device according to claim 8, wherein: The pressing member comprises: a pressing rod connected to the first body to move linearly, an end of the pressing rod being configured to contact a contact surface of the trigger body; and A pressing spring is connected to the pressing rod and is configured to press the pressing rod toward the trigger body.

12. The electrode plate slotting device according to claim 11, wherein: The pressing rod is in line contact with the contact surface.

13. The electrode plate slotting device according to claim 12, wherein: The contact surface includes a protrusion that protrudes from the trigger body and faces the end of the pressing rod.

14. The electrode plate slotting device according to claim 13, wherein: The surface of the protrusion has a curved shape, and the end portion of the pressing rod has a flat shape.

15. The electrode plate slotting device according to claim 14, wherein: An end surface of the pressing rod is perpendicular to a longitudinal direction of the pressing rod.

16. The electrode plate slotting device according to claim 13, wherein: The contact surface further includes a groove concavely formed in the trigger body.

17. The electrode plate slotting device according to claim 16, wherein: The groove includes a pair of grooves, and the pair of grooves are on opposite sides of the protrusion.

18. The electrode plate slotting device according to claim 16, wherein: The surface of the groove has a curved shape.

19. A method for grooving an electrode plate, comprising: moving the electrode plate between the first die and the second die; moving the second mold downward; inserting a punch into the punch hole and cutting the electrode plate; moving the second mold upward; as well as A waste pusher is moved by a trigger to discharge waste from the punch hole.

20. The electrode plate slotting method according to claim 19, wherein During the cutting of the electrode plate, the trigger engages with the waste pusher, and After the waste material is discharged from the punch hole, the trigger is separated from the waste material pusher.

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