Electrode notching device and electrode notching method using same

Abstract

The present invention relates to an electrode notching device and an electrode notching method using same, the electrode notching device comprising: a transferring jig facing one surface of an electrode to be notched so as to support the electrode; a laser part for emitting a laser toward the electrode in order to cut a predetermined area of the electrode; a pattern jig which is provided at one side of the transferring jig to support one edge of the electrode and includes a first surface having a first cut part formed therethrough to allow the laser emitted from the laser part to pass therethrough; and a suction part for collecting foreign substances generated during a cutting process by the laser, wherein the suction part includes a first suction part positioned below the pattern jig and a second suction part positioned on the side surface of the pattern jig.

Description

Electrode notching device and electrode notching method using the same

[0001] This application claims the benefit of priority to Korean Patent Application No. 2023-0152101, filed November 6, 2023, the entire contents of which are incorporated herein by reference.

[0002] The present invention relates to an electrode notching device and an electrode notching method using the same, and more specifically, to an electrode notching device for forming an electrode tab by processing a non-coated portion of an electrode sheet, and an electrode notching method using the same.

[0003]

[0004] Recently, due to air pollution caused by fossil fuel use and the development of alternative energy sources to address energy depletion, demand for secondary batteries capable of storing generated electrical energy has increased. Rechargeable secondary batteries are widely used in everyday life, including mobile devices, electric vehicles, and hybrid electric vehicles.

[0005] These secondary batteries are arranged in a number of battery cells in small devices to meet the needs of users, but in automobiles and the like, battery modules that electrically connect a number of battery cells or battery packs equipped with a number of such battery modules are used.

[0006] Meanwhile, lithium secondary batteries are classified into cylindrical secondary batteries or square secondary batteries in which the electrode assembly is built into a cylindrical or square metal can, and pouch-type secondary batteries in which the electrode assembly is built into a pouch-type case made of aluminum laminate sheet, depending on the shape of the battery case.

[0007] And the electrode assembly is formed by laminating the positive and negative electrodes so that a separator is interposed between them, and the positive and negative electrodes are manufactured through a process of forming electrode tabs on the positive and negative electrode sheets, respectively, and a process of cutting them into unit electrodes.

[0008] In particular, in the process of forming an electrode tab, a laser is irradiated to remove the remaining portion of the electrode sheet except for the electrode tab. When foreign substances flying at this time adhere to the electrode, this can lead to defects, so all foreign substances generated must be captured and removed reliably.

[0009] Fig. 1 is a drawing showing the removal of foreign substances during laser notching according to the prior art. As shown in Fig. 1, since a suction unit (30) is connected to the inside of the main body (10) and a blowing unit (40) composed of a plurality of air knives (41) is provided, when the blowing unit (40) blows air and foreign substances in a direction horizontal to the width direction of the electrode sheet (1) being transported, the blown air and foreign substances are sucked into the suction unit (30) that is connected to a position facing the blowing unit (40) and removed.

[0010] However, since the foreign matter flowing into the suction part (30) depends on the air blown from the blowing part (40) positioned facing it, there is a high possibility that some or a large amount of the foreign matter will not flow into the suction part (30).

[0011]

[0012] (Prior art literature)

[0013] (Patent Document 1) Korean Patent Publication No. 2015-0062847

[0014]

[0015] In order to solve the above problems, the purpose is to provide an electrode notching device capable of reliably capturing and removing foreign substances generated during an electrode notching process using a laser, and an electrode notching method using the same.

[0016]

[0017] As a technical means for achieving the above object, the electrode notching device according to the present invention comprises: a transfer jig (100) facing one side of an electrode (E) to support the electrode (E) to be notched; a laser unit (200) for irradiating a laser toward the electrode (E) to cut a certain area of ​​the electrode (E); a pattern jig (300) provided on one side of the transfer jig (100) to support one edge of the electrode (E) and including a first surface (310) in which a first cut (311) through which a laser irradiated from the laser unit (200) passes is formed; and a suction unit (400) for collecting foreign substances generated during the cutting process by the laser; wherein the suction unit (400) comprises a first suction unit (410) positioned below the pattern jig (300) and a second suction unit (420) positioned on the side of the pattern jig (300).

[0018] In addition, in the electrode notching device according to the present invention, the pattern jig (300) comprises: a first surface (310) facing the electrode (E) and having a first cutout (311) of a predetermined shape formed therein; a second surface (320) located at one edge of the first surface (310) and having a second cutout (321) of a predetermined shape formed therein; a third surface (330) located at the other edge of the first surface (310) and having a third cutout (331) of a predetermined shape formed therein; a fourth surface (340) connecting the edges of the first surface (310), the second surface (320) and the third surface (330) and having a fourth cutout (341) of a predetermined shape formed therein; And a fifth surface (350) connecting the edges of the second surface (320), the third surface (330) and the fourth surface (340); wherein the first cut portion (311), the second cut portion (321), the third cut portion (331) and the fourth cut portion (341) are characterized in that they have a structure that is connected to each other.

[0019] In addition, in the electrode notching device according to the present invention, the front surface of the transfer jig (100) facing one side of the electrode (E) and the first surface (310) of the pattern jig (300) are characterized in that they have a constant radius of curvature.

[0020] In addition, in the electrode notching device according to the present invention, the front surface of the transfer jig (100) and the first surface (310) of the pattern jig (300) are characterized in that they have the same radius of curvature.

[0021] In addition, in the electrode notching device according to the present invention, the second cut portion (321) and the third cut portion (331) of the pattern jig (300) form a channel that communicates with each other, and the channel is characterized in that it has the same radius of curvature as the first surface (310).

[0022] In addition, in the electrode notching device according to the present invention, the first suction part (410) is positioned so as to face the third cut part (331), and the second suction part (420) is positioned so as to face the fourth cut part (341).

[0023] In addition, in the electrode notching device according to the present invention, the second suction portion (420) is characterized by including a first transfer pipe (421) into which foreign substances discharged through the fourth cut portion (341) are introduced, and a second transfer pipe (422) connected to the other side of the first transfer pipe (421) and bent at a certain angle.

[0024] In addition, in the electrode notching device according to the present invention, the first transfer pipe (421) is characterized in that its cross-sectional area becomes smaller as it moves toward the second transfer pipe (422).

[0025] In addition, in the electrode notching device according to the present invention, the first cut portion (311) includes a first cut portion (311a) having a predetermined area and through which a laser passes, and a first b cut portion (311b) located on one side of the first a cut portion (311a) and having a larger area than the first a cut portion (311a), and one side of the first transport pipe (421) is located in a space formed by the first b cut portion (311b) and the fourth cut portion (341).

[0026] In addition, the electrode notching device according to the present invention further includes a scattering prevention unit (500) for preventing scattering of foreign substances, and is characterized in that the scattering prevention unit (500) is located in front of the transfer jig (100).

[0027] In addition, in the electrode notching device according to the present invention, the scattering prevention member (500) is characterized by including a first prevention member (510) that is provided to extend at a predetermined angle from the front surface of the transfer jig (100), a second prevention member (520) that extends from one side of the first prevention member (510) toward the pattern jig (300), and a third prevention member (530) that extends from one side of the first prevention member (510) toward the pattern jig (300) but is positioned to be spaced apart from the second prevention member (520) at a predetermined distance.

[0028] In addition, the electrode notching device according to the present invention further includes a guide part (600) for guiding the movement of the electrode (E), and one side of the guide part (600) is fixed to one side of the first prevention member (510) and the rear side is positioned to face the first side (310) of the pattern jig (300).

[0029] In addition, the electrode notching method using the electrode notching device according to the present invention is characterized by including the steps of (S1) supplying the electrode (E) to the transfer jig (100) and the pattern jig (300); and (S2) irradiating a laser through the laser unit (200) to notch a portion of the edge of the electrode (E), and using the suction unit (400) to capture foreign substances generated during the notching process.

[0030]

[0031] As described above, according to the electrode notching device and the electrode notching method using the same according to the present invention, the pattern jig is provided with a passage penetrating from the top to the bottom, and has a dual suction structure in which a suction part is positioned on the lower side and the side of the pattern jig, so that foreign substances generated during notching can be reliably captured and removed.

[0032] In addition, according to the electrode notching device and the electrode notching method using the same according to the present invention, air can be supplied to the passage formed by penetrating the upper and lower parts of the pattern jig, so that friction between the electrode and the fixed jig and between the electrode and the pattern jig can be prevented, and there is an advantage in that foreign substances can be moved to the suction part more easily.

[0033]

[0034] Figure 1 is a drawing showing the removal of foreign substances during laser notching according to a conventional technique.

[0035] Figure 2 is a conceptual diagram for explaining an electrode notching process using an electrode notching device according to one embodiment of the present invention.

[0036] Fig. 3 is a front view of the electrode notching device illustrated in Fig. 2.

[0037] Fig. 4 is a drawing of the electrode notching device shown in Fig. 2 viewed from one side.

[0038] Fig. 5 is a top view of the electrode notching device shown in Fig. 2.

[0039] Fig. 6 is an exploded perspective view of the electrode notching device illustrated in Fig. 2.

[0040] Fig. 7 is an enlarged perspective view of the electrode notching device illustrated in Fig. 2 in which the transfer jig and the pattern jig are combined.

[0041] Figure 8 is a front view of the drawing shown in Figure 7.

[0042]

[0043] Hereinafter, with reference to the attached drawings, embodiments of the present invention will be described in detail, so that those skilled in the art can easily implement the present invention. However, when describing the operating principles of preferred embodiments of the present invention in detail, if a detailed description of a related known function or configuration is judged to unnecessarily obscure the gist of the present invention, such detailed description will be omitted.

[0044] Additionally, the same drawing reference numerals are used for parts with similar functions and actions throughout the drawings. Throughout the specification, when a part is said to be connected to another part, this includes not only direct connections but also indirect connections with other elements intervening. Furthermore, inclusion of a component does not exclude other components unless specifically stated otherwise, but rather implies the inclusion of additional components.

[0045] Additionally, in the drawing, the front refers to the direction in which the electrode faces the laser section (8 o'clock direction based on FIG. 2), and the rear refers to the direction in which the electrode faces the transfer jig (100) (2 o'clock direction based on FIG. 2).

[0046]

[0047] Hereinafter, an electrode notching device according to the present invention will be described.

[0048] Fig. 2 is a conceptual diagram illustrating an electrode notching device according to one embodiment of the present invention. As illustrated in Fig. 2, the electrode notching device of the present invention is a device for notching an edge portion of an electrode (E), and is configured to include a transfer jig (100), a laser unit (200), a pattern jig (300), a suction unit (400), a scattering prevention unit (500), and a guide unit (600).

[0049] Here, the electrode (E) can be either a positive electrode or a negative electrode, and each of the positive and negative electrodes has a holding portion (E1) coated with an active material and a non-coated portion (E2) not coated with an active material, and a laser beam is irradiated toward the non-coated portion (E2) located at the edge to form a tab of a certain shape. Of course, the scrap (S), which is the portion cut to form the tab, must be separated from the electrode (E).

[0050] Meanwhile, the negative electrode sheet is manufactured by applying a slurry containing a negative electrode active material and a binder to a negative electrode current collector such as a copper material. Examples of the negative electrode active material include carbon such as non-graphitizable carbon and graphitic carbon; LixFe2O3(0≤x≤1), LixWO2(0≤x≤1), SnxMe1-xMe'yOz(Me: Mn, Fe, Pb, Ge; Me': Al, B, P, Si, elements of group 1, 2, and 3 of the periodic table, halogen; 0 <x≤1; 1≤y≤3; 1≤z≤8) 등의 금속 복합 산화물; 리튬 금속; 리튬 합금; 규소계 합금; 주석계 합금; SnO, SnO2, PbO, PbO2, Pb2O3, Pb3O4, Sb2O3, Sb2O4, Sb2O5, GeO, GeO2, Bi2O3, Bi2O4, Bi2O5 등의 금속 산화물; 폴리아세틸렌 등의 도전성 고분자; Li-Co-Ni계 재료; Si, SiO, SiO2 단독 또는 이들의 혼합물인 Si계 등을 사용할 수 있으나, 이들만으로 한정되는 것은 아니다.

[0051] The positive electrode sheet is manufactured by applying a slurry containing a positive electrode active material and a binder to a positive electrode current collector such as an aluminum material. The positive electrode active material includes a layered compound such as lithium cobalt oxide (LiCoO2), lithium nickel oxide (LiNiO2), or a compound substituted with one or more transition metals; a lithium manganese oxide such as Li1+xMn2-xO4 (wherein, x is 0 to 0.33), LiMnO3, LiMn2O3, LiMnO2; a lithium copper oxide (Li2CuO2); a vanadium oxide such as LiV3O8, LiV3O4, V2O5, Cu2V2O7; a Ni-site type lithium nickel oxide expressed by the chemical formula LiNi1-xMxO2 (wherein, M = Co, Mn, Al, Cu, Fe, Mg, B, or Ga, and x = 0.01 to 0.3); Lithium manganese composite oxides represented by the chemical formula LiMn2-xMxO2 (wherein, M = Co, Ni, Fe, Cr, Zn, or Ta, and x = 0.01 to 0.1) or Li2Mn3MO8 (wherein, M = Fe, Co, Ni, Cu, or Zn); LiMn2O4 in which a portion of Li in the chemical formula is replaced with an alkaline earth metal ion; disulfide compounds; Fe2(MoO4)3, etc., but are not limited thereto.

[0052]

[0053] FIG. 3 is a front view of the electrode notching device illustrated in FIG. 2, FIG. 4 is a side view of the electrode notching device illustrated in FIG. 2, and FIG. 5 is a top view of the electrode notching device illustrated in FIG. 2.

[0054] Also, FIG. 6 is an exploded perspective view of the electrode notching device illustrated in FIG. 2, FIG. 7 is an enlarged perspective view of the electrode notching device illustrated in FIG. 2 in which the transfer jig and the pattern jig are combined, and FIG. 8 is a front view of the drawing illustrated in FIG. 7.

[0055] Referring to these Figures 2 to 8 together, first, the transfer jig (100) can be provided to correspond to one side of the electrode (E) so as to support the electrode (E) to be notched. In other words, the transfer jig (100) supports the electrode (E) and supports the electrode (E) so that a part of the electrode (E) (e.g., the uncoated portion (E2)) can be continuously notched.

[0056] In addition, the transfer jig (100) may be provided so that the front surface (110) facing one side of the electrode (E) has a certain radius of curvature. At this time, the front surface (110) of the transfer jig (100) may be set to an appropriate curvature that reduces friction with one side of the electrode (E) and takes into account the movement direction of the electrode (E) in a wound state and the movement direction of the electrode (E) in a notched state.

[0057] The laser unit (200) may be equipped to irradiate a laser toward the electrode (E) to notch a certain area of ​​the electrode (E) supported on the transfer jig (100).

[0058] Here, the specific area of ​​the electrode (E) may be the uncoated area (E2) of the electrode (E), as described above.

[0059] Additionally, the laser unit (200) can be positioned opposite the transfer jig (100) to irradiate the laser toward the electrode (E).

[0060] The wavelength of the laser irradiated from the laser unit (200) may be an ultraviolet region, a green region, or an infrared region, and as an example, may be a wavelength of 1000 nm to 1100 nm in the infrared region, but is not limited thereto as long as the electrode tab (121) can be formed by irradiating the uncoated portion (E2) of the electrode (E). Since the laser unit (200) may be equipped with a laser unit that is obvious to those skilled in the art, a more detailed description thereof will be omitted.

[0061] Next, the pattern jig (300) will be described. The pattern jig (300) may be provided on one side of the transfer jig (100) to support one edge of the electrode (E). The pattern jig (300) may be formed to include a first side (310), a second side (320), a third side (330), a fourth side (340), and a fifth side (350). For example, the pattern jig (300) may be provided on one side of the transfer jig (100) so that the other side of the pattern jig (300), which faces the side surface (120) of the transfer jig (100), is open.

[0062] The first surface (310) of the pattern jig (300) may be a front surface facing one surface of the electrode (E) among the surfaces forming the pattern jig (300). For example, the first surface (310) may be positioned at a position extending to one side from the front surface (110) of the transfer jig (100). In addition, the first surface (310) of the pattern jig (300) may be provided to have a certain radius of curvature, but to have the same radius of curvature as the front surface of the transfer jig (100).

[0063] And the first surface (310) may be provided with a first cut portion (311) formed in a certain shape facing the electrode (E), and the laser irradiated from the laser portion (200) passes through this first cut portion (311).

[0064] In detail, the first incision (311) may include a first a incision (311a) and a first b incision (311b). The first a incision (311a) may have a predetermined area and may be provided to allow a laser to pass through, and the first b incision (311b) may be formed to be located on one side of the first a incision (311a) and to have a larger area than the first a incision (311a).

[0065] The first a cut portion (311a) may be a pattern hole formed on the part where the electrode tab of the non-conductive part (E2) is to be formed, and the laser part (200) may irradiate and notch a laser along the first a cut portion (311a) to cut a part of the non-conductive part (E2).

[0066] The first b cut portion (311b) may have an opening shape so that a part of the first suction portion (410) of the suction portion (400) can be inserted, and a detailed description thereof will be provided later.

[0067] The second side (320) may be a side located at one edge of the first side (310), and the third side (330) may be a side located at the other edge of the first side (310).

[0068] With reference to FIG. 7, one edge of the first side (310) may be in the 12 o'clock direction, and the other edge of the first side (310) may be in the 6 o'clock direction. That is, the second side (320) may be the upper surface of the pattern jig (300), and the third side (330) may be the lower surface of the pattern jig (300).

[0069] Additionally, a second cut portion (321) of a certain shape may be formed on the second surface (320), and a third cut portion (331) of a certain shape may be formed on the third surface (330). The second cut portion (321) and the third cut portion (331) may be provided to form a flow path that is connected to each other.

[0070] The path formed through the second incision (321) and the third incision (331) may be provided to have the same radius of curvature as the first surface (310). That is, the radius of curvature of the front surface of the transfer jig (100), the radius of curvature of the first surface (310) of the pattern jig (300), and the radius of curvature of the path formed through the second incision (321) and the third incision (331) may all be set to the same radius of curvature.

[0071] And the fourth side (340) may be a side connecting the edges of the first side (310), the second side (320), and the third side (330). In other words, the fourth side (340) may be a side formed on one side (4 o'clock direction based on FIG. 7) of the pattern jig (300).

[0072] Meanwhile, a fourth cut portion (341) of a certain shape may be formed on the fourth surface (340). The fourth cut portion (341) may be provided in a cut shape connected to the first b cut portion (311b). In addition, the first cut portion (311), the second cut portion (321), the third cut portion (331), and the fourth cut portion (341) may have a structure that is connected to each other.

[0073] The fifth side (350) may be a side connecting the edges of the second side (320), the third side (330), and the fourth side (340), that is, a rear side provided at the rear (2 o'clock direction in Fig. 7) of the pattern jig (300).

[0074] Next, the suction unit (400) is configured to include a first suction unit (410) and a second suction unit (420), and is configured to capture foreign substances generated during the notching process using a laser. In other words, the suction unit (400) can be provided to capture foreign substances generated when the laser irradiated from the laser unit (200) irradiates and notches the uncut portion (E2) of the electrode (E) to form an electrode tab.

[0075] The first suction part (410) may be positioned so as to face the lower side of the pattern jig (300), more specifically, the third incision part (331). For example, the first suction part (410) is connected to a container (not shown) for collecting captured foreign substances, and although not shown in the drawing, a known suction means (not shown) such as a vacuum pump may be connected so as to make the inside of the pattern jig (300) under negative pressure.

[0076] In addition, one opening of the first suction section (410) is formed to be larger than the area of ​​the third incision section (331), so that all foreign substances discharged through the third incision section (331) can be captured.

[0077] The second suction part (420) may be positioned toward the side of the pattern jig (300), more specifically, the second suction part (420) may be positioned toward the fourth cut part (341). That is, the second suction part (420) may be positioned at one side of the pattern jig (300).

[0078] The second suction section (420) may include a first transfer pipe (421) and a second transfer pipe (422). The first transfer pipe (421) may be positioned in a space formed by the firstb cut section (311b) and the fourth cut section (341) on one side of the first transfer pipe (421) so that foreign substances discharged through the fourth cut section (341) may be introduced.

[0079] For example, the first transfer pipe (421) may be provided such that a portion of one side of the first transfer pipe (421) is inserted into the fourth cut portion (341) and the first b cut portion (311b), and the area excluding the portion is provided so as to partially protrude forward of the pattern jig (300) so as to capture some of the foreign substances generated during the cutting process using a laser.

[0080] Here, the first transport pipe (421) may be provided in a shape in which the cross-sectional area becomes smaller as it goes toward the second transport pipe (422), that is, in a cone shape in which the inner diameter or cross-sectional area becomes smaller as it goes from one side to the other side to facilitate transport of captured foreign substances.

[0081] The second transport pipe (422) may be connected to the other side of the first transport pipe (421), and furthermore, the second transport pipe (422) may be provided by being bent at a certain angle. For example, the second transport pipe (422) is connected to a container (not shown) for collecting foreign substances captured from the first transport pipe (421), and although not shown in the drawing, a known suction means (not shown), such as a vacuum pump, may be connected so that the inside of the pattern jig (300) is in a negative pressure state.

[0082] The electrode notching device according to the present invention includes a first suction part (410) arranged in a third cut part (331) and a second suction part (420) arranged in a fourth cut part (341), thereby improving the efficiency of capturing foreign substances through a dual suction structure, thereby improving the pattern jig cleaning cycle, and thereby reducing the equipment idle time, thereby increasing productivity.

[0083] In addition, the electrode notching device according to the present invention can contribute to improving the foreign substance collection efficiency of the first suction part (410) and / or the second suction part (420) because air is introduced through the passage formed by the second cut part (321) and the third cut part (331).

[0084] Continuing, a scatter prevention member (500) may be provided to prevent scattering of foreign substances and may be positioned in front of the transfer jig (100). This scatter prevention member (500) may be configured to include a first prevention member (510), a second prevention member (520), and a third prevention member (530).

[0085] The first prevention member (510) may be provided to extend at a certain angle from the front of the transfer jig (100). The first prevention member (510) may be provided on the other side (9 o'clock direction in FIG. 3) of the first cut portion (311) and may be provided at a position facing the second suction portion (420). That is, the first prevention member (510) may prevent some of the foreign substances that were not sucked into the second suction portion (420) from flying away, and may be provided to be attached to one surface of the first prevention member (510).

[0086] The second prevention member (520) may extend from one side of the first prevention member (510) toward the pattern jig (300). In addition, the third prevention member (530) may extend from one side of the first prevention member (510) toward the pattern jig (300), but may be positioned so as to be spaced apart from the second prevention member (520) by a certain distance.

[0087] To elaborate, the second prevention member (520) may be positioned so as to be positioned above the first cut portion (311) (12 o'clock direction based on FIG. 3), and the third prevention member (530) may be positioned so as to be positioned below the first cut portion (311) (6 o'clock direction based on FIG. 3).

[0088] Accordingly, the anti-flying part (500) is provided on the upper and lower sides of the first incision (311) except for one side where the second suction part (420) is located, thereby preventing some of the foreign substances that were not sucked through the second suction part (420) from flying.

[0089] The guide part (600) may be provided to guide the movement of the electrode (E). For example, the guide part (600) may guide the electrode (E) formed with the electrode tab and the scrap (S) generated by the notching to move in a separated state.

[0090] In detail, the guide part (600) can be positioned so that the side (11 o'clock direction based on FIG. 2) is fixed to one side of the first prevention member (510) and the rear side (2 o'clock direction based on FIG. 2) faces the first surface (310) of the pattern jig (300).

[0091] Here, the meaning that the rear surface of the guide portion (600) faces the first surface (310) of the pattern jig (300) may mean that the rear surface of the guide portion (600) is arranged to face the first surface (310) of the pattern jig (300).

[0092] In addition, the rear surface of the guide portion (600) may be provided to correspond to the radius of curvature of the first surface (310) of the pattern jig (300). For example, the first surface (310) of the pattern jig (300) may be formed to have a convex curvature toward the front (9 o'clock direction as of FIG. 4), and the rear surface of the guide portion (600) may be formed to have a concave curvature toward the rear (9 o'clock direction as of FIG. 4) correspondingly. In addition, the rear surface of the guide portion (600) may be provided to have a round shape so as to prevent the electrode (E) from being damaged.

[0093] In this way, the guide part (600) can guide the movement of the electrode (E) formed with an electrode tab by notching the rear side, and can guide the movement of the scrap (S) generated by the notching on the front side.

[0094] Accordingly, since the scrap (S) generated by notching flows down along the front of the guide part (600), the recovery of the scrap (S) can be easy, the winding of the electrode (E) on which the electrode tab is formed can be easy, and problems in the notching process caused by the scrap (S) can be fundamentally prevented.

[0095]

[0096] The following describes a method of notching an electrode using the aforementioned electrode notching device.

[0097] The electrode notching method according to the present invention may include a step of (S1) supplying an electrode (E) to a transfer jig (100) and a pattern jig (300); and a step of (S2) irradiating a laser through a laser unit (200) to notch a portion of the edge of the electrode (E), and using a suction unit (400) to capture foreign substances generated during the notching process.

[0098] (S2) In step (S2), a step may further be included in which air is introduced through the passages of the second incision (321) and the third incision (331) by the suction of the suction unit (400).

[0099] Here, the suction unit (400) can form a certain level of negative pressure by a suction means (not shown).

[0100]

[0101] As described above, specific parts of the present invention have been described in detail. To those skilled in the art, such specific descriptions are merely preferred embodiments, and the scope of the present invention is not limited thereby. It is obvious to those skilled in the art that various changes and modifications are possible within the scope and technical idea of ​​the present invention, and it is natural that such changes and modifications fall within the scope of the appended patent claims.

[0102] (Explanation of symbols)

[0103] 100: Transfer jig

[0104] 110: Front 120: Side

[0105] 200: Laser Department

[0106] 300: Pattern Jig

[0107] 310: First side 311: First incision

[0108] 311a: 1a incision 311b: 1b incision

[0109] 320: Second side 321: Second cut

[0110] 330: Third side 331: Third incision

[0111] 340: 4th side 341: 4th incision

[0112] 350: Page 5

[0113] 400: Suction section

[0114] 410: First suction section

[0115] 420: Second suction section

[0116] 421: First transfer pipe 422: Second transfer pipe

[0117] 500: Anti-flying section

[0118] 510: First prevention member 520: Second prevention member

[0119] 530: Third prevention element

[0120] 600: Guide Department

[0121] E: Electrode

[0122] E1: Maintenance Department E2: Unmaintained Department

[0123] S: Scrap

Claims

1. A transfer jig facing one side of the electrode to support the electrode to be notched; A laser unit that irradiates a laser toward the electrode to cut a certain area of ​​the electrode; A pattern jig including a first surface formed with a first cut portion through which a laser irradiated from the laser unit passes, the first surface being provided on one side of the transfer jig to support one edge of the electrode; and Including a suction unit that captures foreign substances generated during the cutting process using the laser; An electrode notching device characterized in that the suction part includes a first suction part located below the pattern jig and a second suction part located on the side of the pattern jig.

2. In paragraph 1, The above pattern jig is, A first surface facing the electrode and having a first cut portion of a predetermined shape formed therein; A second surface having a second cut portion of a predetermined shape formed on one edge of the first surface; A third surface located on the other edge of the first surface and having a third cut portion of a certain shape formed thereon; A fourth surface connecting the edges of the first surface, the second surface, and the third surface and having a fourth cut portion of a predetermined shape formed therein; and A fifth surface connecting the edges of the second surface, the third surface, and the fourth surface; An electrode notching device characterized in that the first incision, the second incision, the third incision, and the fourth incision have a structure that is connected to each other.

3. In paragraph 2, An electrode notching device characterized in that the front surface of the transfer jig facing the electrode surface and the first surface of the pattern jig have a constant radius of curvature.

4. In paragraph 3, An electrode notching device characterized in that the front surface of the above transfer jig and the first surface of the above pattern jig have the same radius of curvature.

5. In paragraph 3, An electrode notching device characterized in that the second cut portion and the third cut portion of the pattern jig form a channel that communicates with each other, and the channel has the same radius of curvature as the first surface.

6. In paragraph 2, An electrode notching device characterized in that the first suction portion is positioned toward the third incision portion, and the second suction portion is positioned toward the fourth incision portion.

7. In paragraph 6, An electrode notching device characterized in that the second suction section includes a first transfer pipe into which foreign substances discharged through the fourth incision section are introduced, and a second transfer pipe connected to the other side of the first transfer pipe and bent at a certain angle.

8. In paragraph 7, An electrode notching device characterized in that the first transfer pipe has a shape in which the cross-sectional area becomes smaller as it moves toward the second transfer pipe.

9. In paragraph 7, The first incision has a predetermined area and includes a first a incision through which a laser passes, and a first b incision located on one side of the first a incision and having a larger area than the first a incision. An electrode notching device characterized in that one side of the first transfer pipe is located in a space formed by the first b cut portion and the fourth cut portion.

10. In paragraph 3, In addition, it includes a scatter prevention section to prevent scattering of foreign substances. An electrode notching device characterized in that the above-mentioned anti-flying part is located in front of the transfer jig.

11. In paragraph 10, An electrode notching device characterized in that the above scatter prevention member includes a first prevention member that is provided to extend at a certain angle from the front surface of the transfer jig, a second prevention member that extends from one side of the first prevention member toward the pattern jig, and a third prevention member that extends from one side of the first prevention member toward the pattern jig but is positioned at a certain distance from the second prevention member.

12. In paragraph 11, An electrode notching device further comprising a guide portion for guiding movement of the electrode, wherein one side of the guide portion is fixed to one side of the first preventing member and the rear side is positioned to face the first side of the pattern jig.

13. An electrode notching method using an electrode notching device according to any one of claims 1 to 12, (S1) a step of supplying the electrode to the transfer jig and the pattern jig; and (S2) An electrode notching method characterized by comprising a step of notching a portion of the edge of the electrode by irradiating a laser through the laser unit, and capturing foreign substances generated during the notching process by the suction unit.

Images