Electrode manufacturing apparatus

Abstract

An electrode manufacturing apparatus according to one embodiment of the present invention includes a slit roll containing a knife for cutting electrodes, and at least one bracket located downstream in the electrode movement direction at a predetermined distance from the slit roll and facing the electrode, which includes a plurality of micro-holes for removing foreign matter resulting from cutting the electrode by the slit roll through the micro-holes.

Description

Technical Field

[0001] The present invention relates to an electrode manufacturing apparatus. More specifically, the present invention relates to a slit apparatus among electrode manufacturing apparatuses.

[0002] This application claims priority based on Korean Patent Application No. 10-2023-0073808 filed on June 8, 2023, and all the contents disclosed in the specification and drawings of the application are incorporated into this application.

Background Art

[0003] Secondary batteries that are highly applicable to a product group and have electrical characteristics such as a high energy density are generally applied not only to portable devices but also to electric vehicles (EVs) or hybrid electric vehicles (HEVs) driven by an electric drive source. Such secondary batteries not only have the main advantage of being able to dramatically reduce the use of fossil fuels but also have the advantage of generating no by-products from the use of energy, so they are attracting attention as a new energy source for environmental consideration and improving energy efficiency.

[0004] Currently, widely used types of secondary batteries include lithium-ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel metal hydride batteries, nickel zinc batteries, etc. The operating voltage of such a unit secondary battery cell, that is, a unit battery cell, is about 2.5V to 4.5V. Therefore, when a higher output voltage is required, a plurality of battery cells may be connected in series to form a battery pack. Also, depending on the charge and discharge capacity required for the battery pack, a plurality of battery cells may be connected in parallel to form a battery pack. Therefore, the number of battery cells included in the battery pack can be variously set according to the required output voltage and / or charge and discharge capacity.

[0005] On the other hand, electrodes can be cut during the manufacturing process of secondary batteries. When the electrodes are cut, foreign matter such as powder from the foil that makes up the electrodes and electrode powder may be generated. As a result, foreign matter such as powder may scatter and adhere to the electrode surface, potentially contaminating the electrodes. This electrode powder and foil powder adhering to the electrode surface can cause performance degradation and safety problems after the battery is completed. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The present invention aims to smoothly remove foreign matter generated during electrode cutting in the secondary battery manufacturing process.

[0007] However, the technical problems that this invention aims to solve are not limited to those mentioned above, and other problems not mentioned will be clearly understood by an ordinary person of the art from the description of the invention below. [Means for solving the problem]

[0008] An electrode manufacturing apparatus according to one embodiment of the present invention for solving the above problems includes a slit roll including a knife for cutting electrodes, and at least one bracket located downstream in the direction of movement of the electrode, separated by a predetermined distance from the slit roll, and provided at a position facing the electrode, and containing a plurality of micro-holes, which remove foreign matter generated as a result of cutting the electrode with the slit roll through the micro-holes.

[0009] Preferably, the micropores may include blowholes for discharging air and suction holes for drawing in air.

[0010] In one embodiment of the present invention, the electrode manufacturing apparatus may include an air injector connected to the blowhole via piping for discharging air, and an air inhaler connected to the suction hole via piping for drawing in air.

[0011] In another embodiment of the present invention, the bracket may include an upper bracket located above the electrode and a lower bracket located below the electrode.

[0012] Preferably, the micro-holes of the lower bracket, which are positioned opposite to the micro-holes of the upper bracket, may be of the same type as the micro-holes provided in the upper bracket.

[0013] In yet another embodiment of the present invention, the blowholes and suction holes may be arranged alternately.

[0014] Preferably, the blowholes and suction holes may be arranged in a checkerboard pattern.

[0015] In yet another embodiment of the present invention, the blowholes may be arranged in a straight line, and the suction holes may be arranged in a straight line.

[0016] Preferably, the arrangement lines for the blowholes and the arrangement lines for the suction holes can be arranged alternately.

[0017] In yet another embodiment of the present invention, the arrangement lines for the blowholes and the arrangement lines for the suction holes may be configured perpendicular to the direction of movement of the electrodes.

[0018] In yet another embodiment of the present invention, the arrangement lines for the blowholes and the arrangement lines for the suction holes may be configured parallel to the direction of movement of the electrodes.

[0019] In yet another embodiment of the present invention, the arrangement lines of the suction holes may be positioned to correspond to the electrode lines cut by the knife provided on the slit roll.

[0020] In yet another embodiment of the present invention, the electrode manufacturing apparatus may include a plurality of the brackets.

[0021] In still another aspect of the present invention, the electrode manufacturing apparatus can include a frame for attaching and fixing the bracket.

[0022] In still another aspect of the present invention, the electrode manufacturing apparatus can include a filtering device connected to the air inhaler and capable of filtering and separating foreign substances.

Effects of the Invention

[0023] According to the present invention, in the process of manufacturing a secondary battery, foreign substances generated during electrode cutting can be smoothly removed.

[0024] However, the effects obtained by the present invention are not limited to the above-described effects, and other technical effects not mentioned will be clearly understood by those skilled in the art from the description of the invention described below.

[0025] The following drawings attached to this specification illustrate desirable embodiments of the present invention and serve to further understand the technical idea of the present invention together with the detailed description of the invention. Therefore, the present invention should not be construed as being limited only to the matters described in the drawings.

Brief Description of the Drawings

[0026] [Figure 1] It is a diagram for explaining an electrode manufacturing apparatus according to an embodiment of the present invention. [Figure 2] It is a diagram for explaining the slit roll included in the electrode manufacturing apparatus of FIG. 1. [Figure 3] It is a diagram for explaining a conventional electrode manufacturing apparatus. [Figure 4] It is a diagram for explaining another conventional form of an electrode manufacturing apparatus. [Figure 5] It is a side view of the electrode manufacturing apparatus of FIG. 1 seen from the side. [Figure 6] It is a diagram for explaining the bracket included in the electrode manufacturing apparatus of FIG. 1. [Figure 7] It is a side view of the bracket of FIG. 6 seen from the side. [Figure 8] This figure illustrates a bracket according to another embodiment of the present invention. [Figure 9] This is a diagram illustrating a bracket according to yet another embodiment of the present invention. [Figure 10] Figure 9 is a diagram illustrating an electrode manufacturing apparatus including a bracket. [Figure 11] This is a diagram illustrating an electrode manufacturing apparatus according to yet another embodiment of the present invention. [Modes for carrying out the invention]

[0027] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. Prior to this, terms and words used in this specification and in the claims shall not be interpreted in their usual and dictionary sense, but rather in a sense and concept appropriate to the technical idea of ​​the present invention, in accordance with the principle that the inventor himself may appropriately define the concept of terms in order to best describe the invention.

[0028] Therefore, it should be understood that the configurations shown in the embodiments described herein represent only one of the most preferred embodiments of the present invention and do not represent the entire technical concept of the present invention, and that there may be a variety of equivalents and modifications that can be substituted therein at the time of filing this application.

[0029] Furthermore, in order to facilitate understanding of the invention, the accompanying drawings are not shown to actual scale, and the dimensions of some components may be exaggerated.

[0030] Figure 1 is a diagram illustrating an electrode manufacturing apparatus 1 according to one embodiment of the present invention.

[0031] Referring to Figure 1, an electrode manufacturing apparatus 1 according to one embodiment of the present invention includes a slit roll 10 and at least one bracket 20. The electrode manufacturing apparatus 1 may further include a frame 30 and / or a filtration device.

[0032] The slit roll 10 and bracket 20 may be devices included in the slitting process of the electrode manufacturing process. For example, the electrode manufacturing process may include a mixing process in which active materials necessary for manufacturing the positive and negative electrodes are weighed and mixed, a coating process in which the mixed active materials are applied to the electrode E, a roll pressing process in which the coated electrode E is passed between rolling rolls, and a slitting process in which the rolled electrode E is cut to the size of the battery. The electrode manufacturing process may further include, for example, an electrode E drying process. Here, the slit roll 10 and bracket 20 are included in the slitting process among the above-mentioned multiple processes.

[0033] Figure 2 is a diagram illustrating the slit roll 10 included in the electrode manufacturing apparatus 1 shown in Figure 1.

[0034] Referring to Figure 2, the slit roll 10 may be configured to have a substantially cylindrical shape. In this case, the longitudinal axis of the cylinder may be perpendicular to the direction of movement of the electrode E. That is, the side portion of the cylindrical slit roll 10 may be positioned to face the electrode E.

[0035] The slit roll 10 may include at least one knife 11 for cutting the electrode E. In particular, the slit roll 10 may include at least one knife 11 for cutting the electrode E on its side surface. For example, the knife 11 may be configured to surround the side surface of the slit roll 10. That is, the central axis of the knife 11 and the central axis of the slit roll 10 may be the same. Here, the knife 11 may be positioned parallel to the direction of movement of the electrode E. This allows the electrode E to be cut along a line parallel to the direction of movement.

[0036] The slit roll 10 may include multiple knives 11. In this case, the spacing between the knives 11 is variable according to a specific battery size standard. The knives 11 may also be configured to be replaceable. For example, the blades of the knives 11 may wear down after prolonged use. In this case, the worn blade can be replaced with a non-worn blade.

[0037] The slit roll 10 may be provided on one side of the electrode E. In this case, a plate capable of supporting the knife 11 and the electrode E may be provided on the opposite side of the slit roll 10. This allows the electrode E, which is interposed between the knife 11 on the slit roll 10 and the plate, to be cut smoothly.

[0038] In other embodiments, the slit rolls 10 may be provided on both sides of the electrode E. When the slit rolls 10 are provided on both sides of the electrode E, the knives 11 provided on each slit roll 10 may be positioned at the same location relative to each other. This allows for smooth cutting of the electrode E interposed between the knives 11.

[0039] On the other hand, the electrode E can be cut by the knife 11 as described above. When cutting the electrode E, foreign matter such as foil powder and electrode powder that make up the electrode E may be generated. As a result, foreign matter such as powder may scatter and adhere to the surface of the electrode E, potentially contaminating the electrode E. Thus, electrode powder and foil powder adhering to the surface of the electrode E may cause performance degradation and safety problems after the battery is completed. This will be explained in detail below with reference to Figures 3 and 4 which illustrate the conventional electrode manufacturing apparatus 1.

[0040] Figure 3 is a diagram illustrating a conventional electrode manufacturing apparatus, and Figure 4 is a diagram illustrating another conventional form of electrode manufacturing apparatus.

[0041] Referring to Figure 3, a conventional electrode manufacturing apparatus includes a slit roll, which includes knives arranged around it. The conventional electrode manufacturing apparatus includes a bracket positioned opposite the knife, surrounding a portion of the knife. The bracket is equipped with a suction device and a blow device, which are components for removing foreign matter. With this structure, air is discharged from the blow device to move the foreign matter, and the moved foreign matter is sucked in through the suction device, thereby removing the foreign matter. However, with this structure, because the bracket is positioned adjacent to the knife, foreign matter adhering to the knife can be removed, but foreign matter that has scattered and adhered to the electrode E is difficult to remove.

[0042] Referring to Figure 4, conventional and other electrode manufacturing apparatuses include a slit roll containing a knife, and a suction device and a blow device located downstream of the electrode E in the direction of movement, separated by a predetermined distance from the slit roll. More specifically, the slit roll, blow device, and suction device are arranged in that order along the direction of movement of the electrode E. With such a structure, foreign matter generated at the cutting site of the electrode E can first be scattered by the blow device and then removed by the suction device. However, in such a structure, since the blow device and the suction device are located on the same side with respect to the electrode E and separated by a predetermined distance from each other, there is a possibility that the electrode will wobble. That is, as shown in Figure 4, the blow device pressurizes the electrode E downward and the suction device pulls the electrode E upward, so the electrode E may bend into a horizontal S-shape. Therefore, the inventors have derived an electrode manufacturing apparatus that solves all of the above problems, which will be described in detail below with reference to Figures 5 to 11.

[0043] Figure 5 is a side view of the electrode manufacturing apparatus 1 shown in Figure 1, and Figure 6 is a diagram illustrating the bracket 20 included in the electrode manufacturing apparatus 1 shown in Figure 1.

[0044] Referring to Figure 1, the bracket 20 may be located downstream in the direction of movement of the electrode E, separated from the slit roll 10 by a predetermined distance. Referring to Figure 1, the electrode E can enter the bracket 20 after passing through the slit roll 10. That is, the electrode E can enter the bracket 20 side after being cut by the slit roll 10.

[0045] Referring to Figures 5 and 6, the bracket 20 can include a plurality of micropores H. The plurality of micropores H can be arranged so as to be spaced apart from each other by a predetermined distance. For example, as shown in Figure 6, the spacing between the plurality of micropores H can be made very small. For example, referring to Figure 1, the spacing between adjacent micropores H can be made smaller than the spacing between adjacent knives 11.

[0046] At this time, foreign matter resulting from the cutting of electrode E by the slit roll 10 can be removed through the micropores H. In other words, the bracket 20 can remove foreign matter adhering to electrode E as it passes through the bracket 20.

[0047] Thus, with a structure in which the electrode E passes through the bracket 20, foreign matter attached not only to the knife 11 but also to the electrode E itself can be effectively removed. Furthermore, with a structure in which the bracket 20 is provided with multiple micropores H, a fine airflow is formed between the electrode E and the bracket 20, thereby preventing the electrode from shaking. That is, as shown in Figure 5, a fine air layer is formed in the region adjacent to the electrode E, preventing the electrode E from sagging or bending. This allows wrinkles that may form on the electrode E to be smoothed out. In addition, with the above structure, since the bracket 20 covers the electrode E, it is also advantageous for removing foreign matter.

[0048] Furthermore, referring to Figure 5, the micropores H may include blowholes BH for discharging air and suction holes SH for drawing in air.

[0049] A blowhole BH can expel air and disperse foreign matter. Preferably, the blowhole BH can guide the foreign matter to the suction hole SH. The suction hole SH can suck in the dispersed foreign matter. The micropores H may be blowholes BH or suction holes SH. However, if all micropores H are blowholes BH or all micropores H are suction holes SH, the case is excluded from the scope of the present invention. Preferably, the micropores H included in the bracket 20 of the present invention may be configured to include both blowholes BH and suction holes SH.

[0050] Thus, with a bracket 20 that includes both a blowhole BH and a suction hole SH, the distance between the blowhole BH and the suction hole SH is shortened, allowing for the formation of a fine airflow. This prevents the electrode from shaking. Specifically, as shown in Figure 5, a fine air layer is formed in the region adjacent to the electrode E, preventing the electrode E from sagging or bending. This also helps to smooth out any wrinkles that may form on the electrode E.

[0051] In one embodiment of the present invention, referring to Figure 5, the electrode manufacturing apparatus 1 may include an air injector 50 connected to a blowhole BH via piping for discharging air, and an air inhaler 40 connected to a suction hole SH via piping for drawing in air.

[0052] For example, the air injector 50 and / or air inhaler 40 may consist of an air pump and / or air pressure. The air injector 50 and / or air inhaler 40 may be connected to the bracket 20. For example, the air injector 50 may be connected via piping to a blowhole BH provided in the bracket 20, allowing air to be discharged through the blowhole BH. On the other hand, the air inhaler 40 may be connected via piping to a suction hole SH provided in the bracket 20, allowing air to be drawn in through the suction hole SH.

[0053] In another embodiment of the present invention, the bracket 20 may include an upper bracket 21 located above the electrode E and a lower bracket 22 located below the electrode E.

[0054] For example, referring to Figures 1 and 5, the electrode manufacturing apparatus 1 may include an upper bracket 21 located above the electrode E and a lower bracket 22 located below the electrode E. The separation distance between the upper bracket 21 and the electrode E may be approximately the same as the separation distance between the lower bracket 22 and the electrode E.

[0055] With this structure, foreign matter can be simultaneously sucked in and removed from the upper and lower parts of the electrode E. For example, in an embodiment where the slit roll 10 is provided on both sides of the electrode E, foreign matter such as electrode powder and foil powder generated at the cutting portion of the electrode E is likely to be generated on both sides of the electrode E. Alternatively, even in an embodiment where the slit roll 10 is provided on one side of the electrode E, fine electrode powder and foil powder may flow to the side opposite the knife 11. In this case, according to an embodiment that includes both an upper bracket 21 and a lower bracket 22, foreign matter adhering to both sides of the electrode E can be smoothly removed.

[0056] Figure 7 is a side view of the bracket 20 shown in Figure 6, viewed from the side.

[0057] In another embodiment of the present invention, the micropores H of the lower bracket 22, which are located opposite to the micropores H of the upper bracket 21, may be of the same type as the micropores H of the upper bracket 21.

[0058] For example, referring to Figure 7, the micropores H of the upper bracket 21 include both blowholes BH and suction holes SH, and the micropores H of the lower bracket 22 also include both blowholes BH and suction holes SH. In this case, the micropore H located on the far left of the upper bracket 21 in the drawing is a blowhole BH, and the micropore H of the lower bracket 22 located at the position corresponding to the blowhole BH may also be a blowhole BH. Also, the micropore H located second from the left of the upper bracket 21 in the drawing is a suction hole SH, and the micropore H of the lower bracket 22 located at the position corresponding to the suction hole SH may also be a suction hole SH. In other words, in the above embodiment, regardless of the order in which the micropores H are arranged within either the upper bracket 21 or the lower bracket 22, the same type of micropores H can be provided at corresponding positions in the upper bracket 21 and the lower bracket 22.

[0059] With such a structure, the forces acting on electrode E at specific points cancel each other out, preventing bending and shaking of electrode E. For example, unlike the present invention, if a suction hole SH is provided at a specific position on the upper bracket 21 and a blowhole BH is provided at a corresponding position on the lower bracket 22, electrode E interposed between them will be subjected to an upward pulling force by the suction hole SH of the upper bracket 21 and an upward pushing force by the blowhole BH of the lower bracket 22. This increases the likelihood that electrode E will bend upward at a specific point. If the micro-hole H of the upper bracket 21 located immediately next to a specific point is a blowhole BH, and the micro-hole H of the lower bracket 22 located at a corresponding position is a suction hole SH, electrode E interposed at this point will be subjected to downward pressure by the blowhole BH of the upper bracket 21 and a downward pulling force by the suction hole SH of the lower bracket 22. This increases the likelihood that electrode E will bend downward at that point. As a result, electrode E is subjected to pressure from above and below, increasing the likelihood of the electrode shaking or bending.

[0060] On the other hand, according to the structure of the present invention, where the micropores H of the lower bracket 22, located opposite the micropores H of the upper bracket 21, are of the same type as the micropores H of the upper bracket 21, the forces acting on the electrode E at a specific point can cancel each other out. For example, referring to Figure 7, the leftmost micropore H of the upper bracket 21 is a blowhole BH, and the micropore H of the lower bracket 22 located at the corresponding position can also be a blowhole BH. In this case, the electrode E interposed between the upper bracket 21 and the lower bracket 22 receives downward pressure from the upper bracket 21 and upward pressure from the lower bracket 22 at the same time. Therefore, the upward and downward pressures applied to the electrode E cancel each other out, preventing the electrode E from moving up or down. In other words, shaking and bending of the electrode can be prevented. Similarly, the second micropore H from the left of the upper bracket 21 is a suction hole SH, and the micropore H of the lower bracket 22 located at the corresponding position can also be a suction hole SH. In this case, the electrode E interposed between the upper bracket 21 and the lower bracket 22 is subjected to upward pressure from the upper bracket 21 and downward pressure from the lower bracket 22. Therefore, the upward and downward pressures applied to the electrode E cancel each other out, preventing the electrode E from coming loose vertically. In other words, it is possible to prevent the electrode from shaking or bending.

[0061] In yet another embodiment of the present invention, the blowholes BH and suction holes SH may be arranged alternately.

[0062] For example, referring to Figure 6, blowholes BH and suction holes SH may be arranged alternately within a single bracket 20. Preferably, blowholes BH and suction holes SH may be arranged in a checkerboard pattern. That is, micropores H located above, below, to the left and right of a suction hole SH may be blowholes BH. Similarly, micropores H located above, below, to the left and right of a blowhole BH may be suction holes SH.

[0063] With this structure, since the same type of micropores H do not concentrate in a particular area, it is possible to prevent strong pressure from being applied to a particular area. For example, if blowholes BH are concentrated in a particular area, the pressure pushing out the electrode E in that area may become large. As a result, the likelihood of the electrode shaking or bending increases. On the other hand, according to the present invention, by arranging suction holes SH and blowholes BH alternately, it is possible to prevent the generation of large pressure in a particular area. That is, when suction holes SH and blowholes BH are arranged alternately, as shown in Figure 5, a fine airflow is formed, and as a result, a thin air layer can be formed in a direction parallel to the electrode E. This prevents the phenomenon of pressure being applied to the electrode E in a direction perpendicular to the electrode E at a particular point.

[0064] Figure 8 is a diagram illustrating a bracket 20 according to another embodiment of the present invention, and Figure 9 is a diagram illustrating a bracket 20 according to yet another embodiment of the present invention. Figure 10 is a diagram illustrating an electrode manufacturing apparatus 1 including the bracket 20 of Figure 9.

[0065] In another embodiment of the present invention, referring to Figures 8 and 9, the blowholes BH and suction holes SH may be arranged in a linear fashion. Here, the arrangement lines of the blowholes BH and the arrangement lines of the suction holes SH may be arranged alternately.

[0066] In one embodiment of the present invention, referring to Figure 8, the arrangement line of the blowhole BH and the arrangement line of the suction hole SH may be perpendicular to the direction of movement of the electrode E.

[0067] With this structure, the arrangement line of the suction hole SH and the direction of electrode movement are perpendicular, which enhances the foreign matter suction effect. More specifically, all points in the width direction of the electrode E passing through the bracket 20 pass through the arrangement line of the suction hole SH simultaneously, so that foreign matter located on the electrode E can be effectively removed.

[0068] In other embodiments, referring to Figures 9 and 10, the placement lines for the blowhole BH and the suction hole SH may be parallel to the direction of movement of the electrode E. Preferably, the placement lines for the suction hole SH may be positioned to correspond to the electrode line cut by the knife 11 provided on the slit roll 10. Referring to Figure 10, the placement lines for the suction hole SH may be located on the line cut by the knife 11.

[0069] With this structure, the arrangement line of the suction holes SH is positioned to correspond to the electrode line cut by the knife 11, thereby increasing the suction efficiency, especially at the cutting point of the electrode E. In other words, there is a high possibility that foreign matter such as electrode powder and foil powder is concentrated at the point cut by the knife 11, but according to the present invention, it is possible to concentrate suction in such areas where foreign matter is concentrated.

[0070] Figure 11 is a diagram illustrating an electrode manufacturing apparatus 1 according to another embodiment of the present invention.

[0071] In yet another embodiment of the present invention, the electrode manufacturing apparatus 1 may include a plurality of brackets 20.

[0072] Multiple brackets 20 can be provided along the direction of movement of the electrode E. For example, referring to Figure 11, a first bracket 20 can be provided downstream of the electrode E in the direction of movement, separated from the slit roll 10 by a predetermined distance. A second bracket 20 can also be provided downstream of the electrode E in the direction of movement, separated from the first bracket 20 by a predetermined distance.

[0073] In yet another embodiment of the present invention, the arrangement of micropores H in the first bracket 20 and the second bracket 20 may differ from that of the first bracket 20. For example, as shown in Figure 11, the arrangement of micropores H in the first bracket 20 can be configured such that the arrangement lines of the blowholes BH and the suction holes SH are perpendicular to the direction of movement of the electrode E, as shown in Figure 8. Alternatively, the arrangement of micropores H in the second bracket 20 can be configured such that the arrangement lines of the blowholes BH and the suction holes SH are parallel to the direction of movement of the electrode E, as shown in Figure 9.

[0074] With this structure, foreign matter that could not be removed by a single bracket 20 can be removed by multiple brackets 20. In other words, the efficiency of foreign matter removal can be further improved. Furthermore, according to the embodiment shown in Figure 11, the first bracket 20 ensures that all points in the width direction of the electrode E passing through the bracket 20 simultaneously pass through the arrangement line of the suction hole SH, thereby effectively removing foreign matter located on the electrode E, and the second bracket 20 can concentrate suction on areas where foreign matter is concentrated.

[0075] Conversely, the first bracket 20 may have the arrangement of micropores H shown in Figure 9, and the second bracket 20 may have the arrangement of micropores H shown in Figure 8. Alternatively, in other embodiments, the arrangement of micropores H of the first bracket 20 and the arrangement of micropores H of the second bracket 20 may be configured to be the same.

[0076] In another embodiment of the present invention, the frame 30 can be used to attach and secure the bracket 20.

[0077] Referring again to Figure 1, the bracket 20 can be attached, for example, to a frame 30 located on one side of the bracket 20. Although Figure 1 only shows an example where the frame 30 is located below the bracket 20, embodiments in which the frame 30 is located on the side of the bracket 20 are also possible. Furthermore, although Figure 1 only shows the frame 30 to which the lower bracket 22 is attached, it goes without saying that the frame 30 to which the upper bracket 21 is attached may also be included in the electrode manufacturing apparatus 1 of the present invention.

[0078] In yet another embodiment of the present invention, the electrode manufacturing apparatus 1 may include a filtration device connected to the air inhaler 40 that can filter and separate foreign matter.

[0079] Although not shown in the diagram, the filtration device can filter out foreign matter such as electrode powder and foil powder. For example, the filtration device may be installed on a piping line connected to the micropores H. Alternatively, the filtration device may be located upstream of the air inhaler 40. Multiple filtration devices may be provided. The filtration device can separate and discharge foreign matter such as foil powder and electrode powder.

[0080] This structure prevents foreign matter from entering other devices included in the electrode manufacturing apparatus 1. In particular, this structure prevents foreign matter from entering the air inhaler 40. Furthermore, a structure with multiple filtration devices can further improve filtration efficiency.

[0081] Through the various embodiments described above, foreign matter adhering to the electrode E can be effectively removed. Furthermore, since a fine airflow is formed between the electrode E and the bracket 20, the shaking phenomenon of the electrode can be prevented. That is, since a fine air layer is formed in the region adjacent to the electrode E, the phenomenon of the electrode E sagging or bending can be prevented. This makes it possible to smooth out wrinkles that may occur on the electrode E. In addition, since the bracket 20 has a structure that covers the electrode E, according to the present invention, foreign matter adhering to the surface of the electrode E can be smoothly removed.

[0082] On the other hand, while terms indicating directions such as up and down are used in this specification, it will be obvious to an ordinary person skilled in the present invention that such terms are for explanatory convenience and may change depending on the position of the object in question, the position of the observer, etc.

[0083] Although the present invention has been described above with reference to limited embodiments and drawings, it goes without saying that the present invention is not limited thereto, and various modifications and variations are possible within the equivalent scope of the technical idea of ​​the present invention and the claims described below by persons with ordinary skill in the art to which the present invention pertains. [Explanation of Symbols]

[0084] 1 Electrode manufacturing equipment 10 Slit Rolls 11 knives 20 brackets 21 Upper bracket 22 Lower bracket 30 frames 40 Air Inhalers 50 Air inflator E-electrode H Micropore BH Blowhole SH Suction Hole

Claims

1. A slit roll containing a knife for cutting electrodes, A bracket comprising at least one bracket located downstream in the direction of movement of the electrode, separated by a predetermined distance from the slit roll, and containing a plurality of micro-holes positioned opposite the electrode, configured to remove foreign matter generated as a result of cutting the electrode by the slit roll through the micro-holes, Electrode manufacturing equipment, including...

2. The aforementioned micropores are A blowhole for expelling air, Suction holes for drawing in air, The electrode manufacturing apparatus according to claim 1, including the following:

3. Electrode manufacturing equipment, An air injector is connected to the aforementioned blowhole via piping and discharges air, An air inhaler connected to the aforementioned suction hole via piping, which draws in air, The electrode manufacturing apparatus according to claim 2, including the following:

4. The aforementioned bracket is An upper bracket located above the electrode, A lower bracket located below the electrode, The electrode manufacturing apparatus according to claim 2, including the following:

5. The micro-holes of the lower bracket, which are located opposite to the micro-holes of the upper bracket, The electrode manufacturing apparatus according to claim 4, wherein the micropores are of the same type as the micropores provided in the upper bracket.

6. The electrode manufacturing apparatus according to claim 2, wherein the blowholes and suction holes are arranged alternately.

7. The electrode manufacturing apparatus according to claim 2, wherein the blowholes and suction holes are arranged in a checkerboard pattern.

8. The blowholes are arranged in a straight line, The suction holes are arranged in a straight line, The electrode manufacturing apparatus according to claim 2, wherein the arrangement lines for the blowholes and the arrangement lines for the suction holes are arranged alternately with respect to each other.

9. The electrode manufacturing apparatus according to claim 8, wherein the arrangement line of the blowhole and the arrangement line of the suction hole are perpendicular to the direction of movement of the electrode.

10. The electrode manufacturing apparatus according to claim 8, wherein the arrangement line of the blowhole and the arrangement line of the suction hole are parallel to the direction of movement of the electrode.

11. The arrangement line of the aforementioned suction holes is, The electrode manufacturing apparatus according to claim 8, wherein the electrode is provided at a position corresponding to the electrode line cut by the knife provided on the slit roll.

12. The electrode manufacturing apparatus, The electrode manufacturing apparatus according to claim 1 or 2, comprising a plurality of the aforementioned brackets.

13. Electrode manufacturing equipment, The electrode manufacturing apparatus according to claim 1 or 2, further comprising a frame for attaching and fixing the bracket.

14. The electrode manufacturing apparatus, The electrode manufacturing apparatus according to claim 3, further comprising a filtration device connected to the air inhaler and capable of filtering and separating foreign matter.

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