Electrode production apparatus and battery cells containing electrodes produced using the same, battery packs containing said battery cells and automobiles
The electrode production apparatus addresses the issue of foreign matter ingress during laser cutting by using a blocking member and suction system, ensuring high-quality electrode production for battery cells and packs.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- LG ENERGY SOLUTION LTD
- Filing Date
- 2024-08-26
- Publication Date
- 2026-05-15
AI Technical Summary
The generation of foreign matter during the laser cutting process in electrode production leads to defects in the coated portion of the electrode foil, which affects the quality of secondary batteries.
An electrode production apparatus is designed with a transfer member, laser member, jig member, and foreign matter blocking member to prevent foreign matter from flowing into the coated portion of the electrode foil during cutting, using a jig member with a foreign matter blocking member positioned near the boundary of coated and uncoated areas, and incorporating a suction member to collect foreign matter.
Prevents foreign matter from entering the coated portion of the electrode foil, thereby improving electrode quality and reducing defects, enhancing the performance of battery cells and packs.
Smart Images
Figure 2026515276000001_ABST
Abstract
Description
Technical Field
[0001] This application claims priority based on Korean Patent Application No. 10-2023-0191778 filed on December 26, 2023, and Korean Patent Application No. 10-2024-0022072 filed on February 15, 2024, and all the contents disclosed in the specifications and drawings of the said applications are incorporated into this application.
[0002] The present invention relates to an electrode production apparatus, a battery cell including an electrode produced using the same, a battery pack including the battery cell, and an automobile, and more particularly, to an electrode production apparatus capable of improving electrode quality, a battery cell including an electrode produced using the same, a battery pack including the battery cell, and an automobile.
Background Art
[0003] Generally, a secondary battery refers to a battery capable of repeated charging and discharging, such as a lithium-ion battery, a lithium polymer battery, a nickel cadmium battery, a nickel metal hydride battery, a nickel zinc battery, etc.
[0004] Secondary batteries can be classified into cylindrical secondary batteries and prismatic secondary batteries in which an electrode assembly is built into a cylindrical or prismatic metal can depending on the shape of the battery case, and pouch-type secondary batteries in which the electrode assembly is built into a pouch of an aluminum laminate sheet.
[0005] Such secondary batteries can be manufactured by housing an electrode assembly including a positive electrode and a negative electrode laminated with each other with a separator and an electrolyte substance in cases of various forms and sealing the cases.
[0006] An electrode (positive electrode or negative electrode) of a secondary battery may include a coated portion in which an electrode binder is pressure-bonded to the surface of an electrode foil to form a coating layer of an electrode active material, and an uncoated portion where the coating layer is not formed.
[0007] On the other hand, the electrodes of a secondary battery can be produced by a roll-to-roll process in which an electrode foil, with a coating layer of electrode active material formed on its surface, is wound and moved between rolls. Furthermore, the electrodes may be partially cut in order to manufacture the electrode assembly; for example, they may be cut by a laser.
[0008] However, when using a laser to cut electrodes, a problem arises in that foreign matter (for example, fumes) is generated during the cutting process, and this generated foreign matter flows into the coated area (the coating layer of the electrode active material), causing electrode defects. [Overview of the project] [Problems that the invention aims to solve]
[0009] The present invention aims to provide an electrode production apparatus capable of preventing foreign matter from flowing into a predetermined portion (e.g., a coated portion) of an electrode foil when the electrode foil is cut, a battery cell containing an electrode produced using the apparatus, a battery pack containing the battery cell, and an automobile.
[0010] Another objective is to provide an electrode production apparatus capable of preventing electrode defects by preventing foreign matter from flowing into a predetermined portion of the electrode foil, thereby improving electrode quality, as well as a battery cell containing electrodes produced using the apparatus, a battery pack containing said battery cell, and an automobile.
[0011] However, the technical problems that this invention aims to solve are not limited to those described above, and other problems not mentioned will be clearly understood by those skilled in the art from the description of the invention below. [Means for solving the problem]
[0012] According to one aspect of the present invention, an electrode production apparatus may be provided that includes a transfer member for transporting an electrode foil coated with an electrode active material, a laser member for irradiating a laser toward the electrode foil, a jig member positioned to contact the electrode foil and support the electrode foil, and a foreign matter blocking member for blocking foreign matter generated during laser irradiation from flowing into a predetermined portion of the electrode foil.
[0013] In one embodiment, the electrode foil includes a coated portion coated with an electrode active material and an uncoated portion not coated with the electrode active material, and the foreign matter blocking member is positioned close to the boundary line between the coated portion and the uncoated portion to block the inflow of the foreign matter into the coated portion.
[0014] In one embodiment, the jig member may include a first part arranged vertically and having an inner groove, a second part connected above the first part, and a third part connected below the first part.
[0015] In one embodiment, at least one of the second and third parts may have a through hole through which the foreign object passes.
[0016] In one embodiment, at least one of the second and third parts may be connected to a foreign matter discharge section through which foreign matter that has passed through the through hole is discharged.
[0017] In one embodiment, the second and third parts are formed with a first curved surface, and the foreign matter blocking member may be formed with a second curved surface corresponding to the first curved surface.
[0018] In one embodiment, the curvature of the second curved surface can be greater than or the same as the curvature of the first curved surface.
[0019] In one embodiment, a coating may be formed on the second curved surface to prevent foreign matter from adhering to it.
[0020] In one embodiment, in order to prevent damage to the foreign object blocking member caused by the laser irradiated from the laser member, the foreign object blocking member may be disposed obliquely.
[0021] In one embodiment, the foreign object blocking member may be formed with an inclination such that it spreads outward as it progresses from the jig member toward the laser member.
[0022] In one embodiment, a suction member for sucking the foreign object may be provided.
[0023] In one embodiment, the jig member may be formed with a disposition groove in which the suction member is disposed.
[0024] In one embodiment, the transfer member includes a first transfer roll disposed above and a second transfer roll disposed below, and the electrode foil may move from above downward by the first transfer roll and the second transfer roll.
[0025] In one embodiment, the laser member may irradiate a laser in a lateral direction toward the electrode foil.
[0026] In addition, according to another aspect of the present invention, a battery cell including an electrode produced using the above-described electrode production apparatus is provided, a battery pack including at least one of the above-described battery cells is provided, and an automobile including at least one of the above-described battery cells may be provided.
Advantages of the Invention
[0027] Embodiments of the present invention can prevent foreign objects from flowing into a preset portion (for example, a coating portion) of the electrode foil when the electrode foil is cut.
[0028] In addition, by preventing foreign objects from flowing into a preset portion of the electrode foil, electrode defects can be prevented, and thus the electrode quality can be improved.
[0029] However, the technical problems that this invention aims to solve are not limited to those described above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description of the invention.
[0030] The following drawings accompanying this specification illustrate preferred embodiments of the invention and, together with the detailed description of the invention, serve to further illustrate the technical idea of the invention. Therefore, the invention should not be construed as being limited solely to what is shown in the drawings. [Brief explanation of the drawing]
[0031] [Figure 1] This is a schematic front view of an electrode production apparatus according to one embodiment of the present invention. [Figure 2] Figure 1 shows a view along the direction of arrow A, but the transport member, electrode wheel, and laser member are omitted. [Figure 3] This is a perspective view along the direction of arrow B in Figure 2. [Figure 4] Figure 3 is a separated perspective view. [Figure 5] This is a view along the direction of arrow C in Figure 3. [Figure 6] This is a view along the direction of arrow D in Figure 3. [Figure 7] This figure shows how a foreign matter blocking member is positioned close to the boundary line between a coated area and an uncoated area in an electrode production apparatus according to one embodiment of the present invention. [Figure 8] This is a perspective view of a foreign matter blocking member in an electrode production apparatus according to one embodiment of the present invention. [Figure 9] This is a perspective view of a jig member in an electrode production apparatus according to one embodiment of the present invention. [Figure 10] This is a view of Figure 9 along a different direction. [Figure 11] This is a perspective view of an electrode production apparatus according to a modified embodiment of the present invention. [Figure 12] Figure 11 is an exploded perspective view. [Figure 13] This is a view along the direction of arrow E in Figure 11. [Figure 14] This figure schematically shows the configuration of a battery pack including a battery cell equipped with electrodes produced using an electrode production apparatus according to each embodiment of the present invention. [Figure 15] Figure 14 is a diagram illustrating an automobile that includes a battery pack. [Modes for carrying out the invention]
[0032] Preferred embodiments of the present invention will now be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and in the claims should not be interpreted in a manner limited to their ordinary or dictionary meanings, but rather in a manner consistent with the technical idea of the present invention, in accordance with the principle that the inventor himself may appropriately define the concepts of terms in order to best describe the invention. Accordingly, it should be understood that the embodiments described herein and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent the entirety of the technical idea of the present invention, and that there may be a variety of equivalents and modifications that can be substituted therein at the time of this application.
[0033] The size of each component or specific part of a component in the drawings may be exaggerated, omitted, or shown schematically for the sake of clarity and ease of explanation. Therefore, the size of each component may not fully reflect its actual size. Specific descriptions of known functions or configurations related to the present invention will be omitted if they are deemed to unnecessarily obscure the gist of the invention.
[0034] As used herein, the terms “joining” or “connecting” include not only cases where one member is directly joined or directly connected to another member, but also cases where one member is indirectly joined or indirectly connected to another member via a connecting member.
[0035] Figure 1 is a schematic front view of an electrode production apparatus according to one embodiment of the present invention, Figure 2 is a view along the direction of arrow A in Figure 1, in which the transfer member, electrode wheel, and laser member are omitted. Figure 3 is a perspective view along the direction of arrow B in Figure 2, Figure 4 is an exploded perspective view of Figure 3, Figure 5 is a view along the direction of arrow C in Figure 3, Figure 6 is a view along the direction of arrow D in Figure 3, Figure 7 shows how the foreign matter blocking member is positioned close to the boundary line between the coated and uncoated areas in the electrode production apparatus according to one embodiment of the present invention, Figure 8 is a perspective view of the foreign matter blocking member in the electrode production apparatus according to one embodiment of the present invention, Figure 9 is a perspective view of the jig member in the electrode production apparatus according to one embodiment of the present invention, and Figure 10 is a view along another direction from Figure 9.
[0036] Referring to Figure 1, an electrode production apparatus 10 according to one embodiment of the present invention relates to an apparatus for producing electrodes (positive or negative electrodes) by transporting an electrode foil 700 on which a coating layer of electrode active material has been formed. The term "electrode" is a concept that includes both wet electrodes and dry electrodes.
[0037] For example, a wet electrode is manufactured by applying an electrode mixture in a slurry state containing a solvent to the surface of an electrode substrate such as an electrode foil 700 to form a coating layer, and then drying the coating layer.
[0038] The dry electrode is manufactured through a process in which a solvent-free powder (powder mixture) electrode mixture is pressed onto the surface of the electrode foil 700 to form a coating layer. That is, the electrode mixture is mixed without any liquid medium such as a solvent or dispersion medium, and then the powdered electrode mixture is pressed onto the surface while passing it through a rolling mill.
[0039] Referring to Figure 7, the electrode foil 700 may include a coated portion 710 on which a coating layer of electrode active material is formed on its surface, and an uncoated portion 720 (for example, both ends of the electrode foil 700) on which a coating layer of electrode active material is not formed.
[0040] Referring to Figure 5, an electrode production apparatus 10 according to one embodiment of the present invention relates to an apparatus capable of blocking the flow of foreign matter 800 generated when the laser 210 is irradiated into a predetermined portion of the electrode foil 700, for example, the coated portion 710 to which the electrode active material is coated. This will be described in detail below.
[0041] Referring to Figure 1, an electrode production apparatus 10 according to one embodiment of the present invention may be configured to include a transfer member 100, a laser member 200, a jig member 300, and a foreign matter blocking member 400.
[0042] The transfer member 100 transfers the electrode foil 700 coated with the electrode active material. The transfer member 100 can take various forms and may include, for example, multiple rollers to transfer the electrode foil 700 in a roll-to-roll manner. The transfer member 100 is not limited to this, but for the sake of explanation, an embodiment in which the transfer member 100 includes multiple rollers will be described below.
[0043] Referring to Figure 1, the transfer member 100 may include a first transfer roll 110 and a second transfer roll 120. Here, the first transfer roll 110 and the second transfer roll 120 can be arranged in various positions. For example, as shown in Figure 1, the first transfer roll 110 may be positioned above and the second transfer roll 120 may be positioned below.
[0044] In this embodiment, the electrode wheel 700 is transferred from the upper first transfer roll 110 to the lower second transfer roll 120. That is, the electrode wheel 700 moves from top to bottom by the first transfer roll 110 and the second transfer roll 120.
[0045] Referring to Figure 1, the laser member 200 is configured to irradiate the electrode wheel 700 with the laser 210. The laser member 200 may include various types of laser equipment. Referring to Figure 1, when the electrode wheel 700 moves from top to bottom by the first transfer roll 110 and the second transfer roll 120, the laser member 200 may be configured to irradiate the electrode wheel 700 with the laser 210 laterally with reference to Figure 1.
[0046] Referring to Figure 1, the jig member 300 is positioned to contact the electrode wheel 700 and support the electrode wheel 700. When the electrode wheel 700 is cut by the laser member 200, the jig member 300 prevents vibration or oscillation of the electrode wheel 700, thereby preventing cutting defects such as uneven cutting or cutting of parts other than the preset parts when the electrode wheel 700 is cut by the laser member 200.
[0047] The jig member 300 can be configured in various ways, and may include, for example, a first part 310, a second part 320, and a third part 330. Here, the first part 310, the second part 320, and the third part 330 are merely formal divisions of the jig member 300 for the sake of explanation, and there is no clear criterion for the division between the first part 310, the second part 320, and the third part 330. For example, the first part 310, the second part 320, and the third part 330 may be manufactured separately and then joined together to form the jig member 300, or the first part 310, the second part 320, and the third part 330 may be formed integrally from the manufacturing stage.
[0048] Referring to Figure 1, the first part 310 is positioned vertically. An inner groove 311 may be formed in the first part 310. Here, the inner groove 311 may be formed throughout the first part 310, the second part 320, and the third part 330.
[0049] Part 2, 320, is joined to Part 1, 310, above Part 3, 330, with reference to Figure 1. Then, Part 3, 330, is joined to Part 1, 310, below Part 2, 320, with reference to Figure 1.
[0050] Specifically, with reference to Figure 1, the second part 320 is positioned above and the third part 330 is positioned below, and each is coupled to the first part 310. Here, the laser member 200 can irradiate the portion where the gap 340 (see Figure 2) between the second part 320 and the third part 330 is located with the laser 210.
[0051] Referring to Figure 5, the foreign matter blocking member 400 is configured to block foreign matter 800 generated when the laser 210 is irradiated from flowing into a predetermined portion of the electrode foil 700.
[0052] For example, as mentioned above, if the electrode foil 700 includes a coated portion 710 coated with electrode active material and an uncoated portion 720 not coated with electrode active material, the foreign matter blocking member 400 may be configured to block the inflow of foreign matter 800 into the coated portion 710 by being positioned close to the boundary line between the coated portion 710 and the uncoated portion 720 (see Figure 7).
[0053] Referring to Figures 3, 6, and 8, a second curved surface portion 410 may be formed on the foreign matter blocking member 400. Referring to Figures 1, 9, and 10, first curved surfaces portions 322 and 332 may be formed on the second part 320 and the third part 330 of the jig member 300. The second curved surface portion 410 of the foreign matter blocking member 400 is formed to correspond to the first curved surfaces portions 322 and 332 formed on the second part 320 and the third part 330.
[0054] In other words, when the first curved portions 322 and 332 are formed on the second portion 320 and the third portion 330, respectively, when the second curved portion 410 is formed on the foreign matter blocking member 400, interference between the foreign matter blocking member 400 and the second portion 320 and the third portion 330 of the jig member 300 is prevented.
[0055] For this reason, the curvature of the second curved surface portion 410 may be greater than or the same as the curvature of the first curved surfaces portion 322, 332. However, it is not limited to this. That is, even if the curvature of the second curved surface portion 410 is smaller than the curvature of the first curved surfaces portion 322, 332, it is still possible to prevent interference with the jig member 300 by adjusting the position of the foreign matter blocking member 400.
[0056] Here, as shown in Figure 8, a coating portion 420 may be formed on the second curved surface portion 410 to prevent foreign matter 800 from adhering. Based on Figure 8, the coating portion 420 may be formed only on the lower part of the foreign matter blocking member 400, or on the lower part of the foreign matter blocking member 400 and a part of the side surface of the foreign matter blocking member 400, or the coating portion 420 may be formed over the entire foreign matter blocking member 400.
[0057] Furthermore, the foreign object blocking member 400 may be made from a transparent or translucent material so as to allow observation of the movement of the foreign object 800, but is not limited to this. In other words, the foreign object blocking member 400 may also be made from an opaque material.
[0058] Referring to Figures 3 and 5, the foreign object blocking member 400 may be positioned at an angle. The foreign object blocking member 400 may be damaged by the laser 210 emitted from the laser member 200, but to prevent such damage to the foreign object blocking member 400, the foreign object blocking member 400 may be positioned at a predetermined angle.
[0059] For example, as shown in Figure 5, the foreign object blocking member 400 may be formed with a slope that widens outward (to the right with respect to Figure 5) as it progresses from the jig member 300 toward the laser member 200. This prevents damage to the foreign object blocking member 400 by the laser 210. It also prevents interference of the laser 210's progression by the foreign object blocking member 400.
[0060] As described above, in the embodiment of the present invention, the foreign matter blocking member 400 prevents foreign matter 800 from flowing into, for example, the coated portion 710 of the electrode foil 700 when the electrode foil 700 is cut, thereby preventing electrode defects and ultimately improving the quality of the electrode.
[0061] Referring to Figures 1 and 2, the suction member 600 is provided for sucking up foreign matter 800. The suction member 600 can be configured in various ways and may include, for example, various types of suction devices (e.g., vacuum suction devices).
[0062] As shown in Figure 2, the suction member 600 is provided on the jig member 300, and for this purpose, as shown in Figure 4, a mounting groove 350 for the suction member 600 may be formed in the jig member 300.
[0063] Figure 11 is a perspective view of an electrode production apparatus according to a modified embodiment of the present invention, Figure 12 is an exploded perspective view of Figure 11, and Figure 13 is a view along the direction of arrow E in Figure 11.
[0064] The modified embodiment of the present invention differs from the first embodiment in that through holes 321 and 331 are formed in the jig member 300. It also differs in that a foreign matter discharge section 500 is connected to the jig member 300.
[0065] Here, the parts that are common to the parts described in the first embodiment will be described in the preceding explanation of the first embodiment. Also, the parts of the parts described in the second embodiment that are applicable to the first embodiment may be applied to the first embodiment.
[0066] Referring to Figures 11 and 12, at least one of the second part 320 and the third part 330 may have through holes 321 and 331 through which the foreign object 800 passes. The through holes 321 and 331 may be one large hole, or multiple holes may be arranged in various ways.
[0067] Referring to Figures 11, 12, and 13, a foreign matter discharge section 500 may be connected to the jig member 300. The foreign matter discharge section 500 may include a discharge body 510 connected to the jig member 300 and a discharge hole 520 formed in the discharge body 510.
[0068] Here, at least one of the second part 320 and the third part 330 of the jig member 300 may be connected to the foreign matter discharge section 500, and foreign matter 800 that has passed through the through holes 321 and 331 formed in at least one of the second part 320 and the third part 330 may be discharged from the discharge hole 520 of the foreign matter discharge section 500. In this case, the through holes 321 and 331 of the second part 320 and the third part 330 and the discharge hole 520 of the foreign matter discharge section 500 are configured to communicate with each other. A suction member (not shown) may be connected to the discharge hole 520.
[0069] Figure 14 is a schematic diagram showing the configuration of a battery pack including a battery cell equipped with electrodes produced using an electrode production apparatus according to each embodiment of the present invention.
[0070] Referring to Figure 14, a battery pack 30 according to one embodiment of the present invention may include one or more battery cells 20. Here, the battery cell 20 includes electrodes produced using the electrode production apparatus 10 according to each embodiment of the present invention as described above.
[0071] Furthermore, the battery pack 30 may further include a pack housing 31 for housing the battery cells 20, and various types of devices for controlling the charging and discharging of the battery cells 20, such as a BMS, current sensors, fuses, and the like.
[0072] On the other hand, as shown in Figure 11, a cylindrical battery cell is illustrated inside the pack housing 31, but the battery cell 20 may include a pouch-type battery cell or a prismatic battery cell.
[0073] Figure 15 is a diagram illustrating the automobile including the battery pack shown in Figure 14.
[0074] Referring to Figure 15, an automobile 40 according to one embodiment of the present invention may include one or more battery cells 20 or the battery pack 30, each containing electrodes produced using the electrode production apparatus 10 according to each embodiment of the present invention. Here, the automobile 40 includes various types of automobiles that use electricity, such as electric vehicles or hybrid vehicles.
[0075] In this specification, terms indicating direction such as up, down, left, right, front, and back are used. However, such terms indicate relative positions and are used only for the convenience of explanation. It is obvious to those skilled in the art that these positions can change depending on the position of the object in question, the observer's position, etc.
[0076] Although the present invention has been described above with reference to limited embodiments and drawings, the present invention is not limited thereto, and of course, various modifications and variations are possible within the equivalent scope of the technical concept of the present invention and the claims below by persons with ordinary skill in the art to which the present invention pertains. Therefore, the embodiments described above should be considered from an explanatory rather than restrictive viewpoint. That is, the true technical concept of the present invention is shown in the claims, and all differences within the equivalent scope thereto should be interpreted as being included in the present invention. [Industrial applicability]
[0077] The present invention relates to an electrode production apparatus, a battery cell containing electrodes produced using the apparatus, a battery pack containing the battery cell, and an automobile, and is particularly applicable to the secondary battery industry. [Explanation of Symbols]
[0078] 10 Electrode Production Equipment 20 battery cells 30 Battery Packs 31 Pack Housing 40 Automobiles 100 Transfer member 110 First transfer roll 120 Second transfer roll 200 Laser Components 210 Lasers 300 Jig components 310 Part 1 311 Inner groove 320 Part 2 321 Through hole 322 1st curved surface part 330 Part 3 331 Through hole 332 1st curved surface part 340 interval 350 Installation groove 400 Foreign object blocking member 410 Second curved surface part 420 Coating section 500 Foreign matter discharge section 510 Discharge Unit 520 Exhaust hole 600 Suction Member 700 Electrode Foil 710 Coating area 720 Uncoated area 800 Foreign object
Claims
1. A transfer member for transporting electrode foils coated with electrode active material, A laser member that irradiates a laser toward the electrode foil, A jig member is positioned to contact the electrode wheel and to support the electrode wheel, An electrode production apparatus comprising: a foreign matter blocking member that prevents foreign matter generated during laser irradiation from flowing into a predetermined portion of the electrode foil.
2. The electrode foil includes a coated portion coated with an electrode active material and an uncoated portion not coated with an electrode active material. The electrode production apparatus according to claim 1, characterized in that the foreign matter blocking member is positioned close to the boundary line between the coated portion and the uncoated portion, and blocks the inflow of the foreign matter into the coated portion.
3. The jig member is, A first part is arranged vertically and has an inner groove formed therein, The second part is attached above the first part, The electrode production apparatus according to claim 1, characterized by comprising a third part coupled below the first part.
4. The electrode production apparatus according to claim 3, characterized in that at least one of the second and third parts has a through hole through which the foreign matter passes.
5. The electrode production apparatus according to claim 4, characterized in that at least one of the second and third parts is connected to a foreign matter discharge section for discharging foreign matter that has passed through the through hole.
6. The second and third parts have a first curved surface formed therein. The electrode production apparatus according to claim 3, characterized in that the foreign matter blocking member has a second curved surface portion formed thereon corresponding to the first curved surface portion.
7. The electrode production apparatus according to claim 6, characterized in that the curvature of the second curved surface portion is greater than or equal to the curvature of the first curved surface portion.
8. The electrode production apparatus according to claim 6, characterized in that a coating portion is formed on the second curved surface portion to prevent the foreign matter from adhering to it.
9. The electrode production apparatus according to claim 1, characterized in that the foreign matter blocking member is arranged at an angle in order to prevent damage to the foreign matter blocking member by the laser irradiated from the laser member.
10. The electrode production apparatus according to claim 9, characterized in that the foreign matter blocking member is inclined to widen outward as it progresses from the jig member toward the laser member.
11. The electrode production apparatus according to claim 1, characterized in that it is provided with a suction member for sucking up the foreign matter.
12. The electrode production apparatus according to claim 11, characterized in that the jig member has a groove formed therein in which the suction member is disposed.
13. The transfer member includes a first transfer roll positioned above and a second transfer roll positioned below, The electrode production apparatus according to claim 1, characterized in that the electrode wheel moves from top to bottom by a first transfer roll and a second transfer roll.
14. The electrode production apparatus according to claim 13, characterized in that the laser member irradiates the electrode foil with a laser in a lateral direction.
15. A battery cell comprising electrodes produced using an electrode production apparatus according to any one of claims 1 to 14.
16. A battery pack comprising at least one battery cell as described in claim 15.
17. An automobile comprising at least one battery cell as described in claim 15.