An electrode recycling device and electrode processing equipment

Abstract

This application relates to the field of battery manufacturing technology, and provides an electrode recycling device and electrode processing equipment, which can solve the problem that the shaking and breakage of waste materials affect normal production during the recycling process. The electrode recycling device includes a negative pressure adsorption component and a baffle. The negative pressure adsorption component includes a negative pressure pipe with a recycling port, and the inside of the negative pressure pipe is configured to generate negative pressure. At least a portion of the baffle is disposed at the recycling port. Within the range of the baffle corresponding to the recycling port, there is an adsorption area and a through groove. The through groove is connected to the negative pressure pipe, and the inner contour of the through groove is larger than the outer contour of the cross-section of the electrode to be recycled. The adsorption area is used to adsorb and guide the electrode to be recycled through the through groove.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, and in particular to an electrode recycling device and electrode processing equipment. Background Technology

[0002] During battery manufacturing, the electrode sheets need to be processed to facilitate subsequent processing. This processing includes material removal and slitting, which generates electrode waste that needs to be promptly cleaned up and recycled.

[0003] In the process of recycling electrode waste, it is necessary to solve the problem of waste shaking and breakage affecting normal production. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides an electrode recycling device and electrode processing equipment that are unaffected by electrode waste breakage, enabling smooth recycling of electrode waste and reducing electrode waste vibration.

[0005] In a first aspect, this application provides an electrode recycling device, including a negative pressure adsorption component and a baffle. The negative pressure adsorption component includes a negative pressure pipe with a recycling port, and the inside of the negative pressure pipe is configured to generate negative pressure. At least a portion of the baffle is disposed at the recycling port. The baffle has an adsorption area and a passage groove within the range corresponding to the recycling port. The passage groove is connected to the negative pressure pipe, and the inner contour of the passage groove is larger than the outer contour of the cross-section of the electrode to be recycled. The adsorption area is used to adsorb and guide the electrode to be recycled through the passage groove.

[0006] The electrode recycling device provided in this application utilizes a negative pressure system within the negative pressure pipeline. The baffle, corresponding to the recycling port, has an adsorption area and a passage area. When electrode waste (i.e., the electrode to be recycled) needs to be recycled, the adsorption area of ​​the baffle adsorbs the waste at the recycling port, bringing the electrode closer to the passage. The negative pressure within the negative pressure pipeline connects with the passage, drawing the waste electrode from the recycling port into the negative pressure pipeline and then recycling it to the corresponding recycling area. During the recycling process, the negative pressure pipeline provides continuous suction, ensuring that even if the electrode waste breaks, it will continue to be drawn into the pipeline, facilitating successful recycling. Furthermore, the adsorption area of ​​the baffle continuously applies adsorption force to the waste electrode during its movement, keeping it at the recycling port and reducing material vibration, thus improving production efficiency.

[0007] In some implementations, the adsorption area is provided with multiple adsorption holes, which are connected to a negative pressure pipe.

[0008] In some implementations, the opening of the adsorption pore facing into the negative pressure pipe is smaller than the opening facing outward.

[0009] In some implementations, a magnetic attraction structure is provided within the adsorption area.

[0010] In some implementations, the groove is opened from the outer surface of the baffle towards the inside of the negative pressure pipe in the same direction as the extension direction of the negative pressure pipe.

[0011] In some implementations, one end of the stop has a notch, which forms a through groove.

[0012] In some implementations, there is a limiting gap between the inner wall of the channel and the electrode to be recycled passing through the channel.

[0013] In some implementations, the baffle includes a connecting section and a covering section connected together. The connecting section is connected to the negative pressure pipeline, and the covering section corresponds to the range of the recovery port. The connecting section and the covering section are set at a first angle, and the connecting section is detachably connected to the negative pressure pipeline.

[0014] In some implementations, the connecting section is provided with a connecting hole, and the connecting section is installed in the connecting hole by fasteners to connect with the negative pressure pipeline.

[0015] Secondly, this application provides an electrode processing device, including a cutting device and an electrode recycling device according to the first aspect, wherein the cutting device is used to cut the electrode; the electrode recycling device is disposed on at least one side of the cutting device and is used to recycle the electrode to be recycled generated after the cutting device cuts the electrode.

[0016] In the electrode processing equipment of this application, since the electrode recycling device of the first aspect is included, the same beneficial effects can be achieved. That is, the electrode waste can be successfully recycled without being affected by the breakage of the electrode waste, and the shaking of the electrode waste is reduced. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the electrode processing equipment according to an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the electrode recycling device according to an embodiment of this application;

[0021] Figure 3This is a schematic diagram of the structure of the baffle in the electrode recycling device according to an embodiment of this application;

[0022] Figure 4 This is a top view of the baffle of the electrode recycling device according to an embodiment of this application;

[0023] Figure 5 for Figure 4 A schematic diagram of the cross-section at point AA.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Electrode recovery device; 11-Negative pressure pipeline; 111-Recovery port; 12-Baffle; 121-Adsorption area; 122-Pass through groove; 123-Adsorption hole; 124-Connecting section; 1241-Connecting hole; 125-Covering section; 2-Cutting device; 21-Upper cutter roller; 22-Lower cutter roller; 23-Cutter; 3-Electrode; 4-Electrode waste; a-First angle. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0032] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0035] The following is a detailed description of this application.

[0036] In the battery manufacturing process, electrode slurry is coated onto a substrate to form electrode sheets. These electrode sheets can then be cut into the desired shapes and structures. In some processes, the electrode sheets are even cut into two parts to improve production efficiency. After the electrode sheets are wound or stacked, they are shaped and packaged to form the battery.

[0037] During the cutting or slitting process of electrode sheets, electrode waste is generated. This waste needs to be recycled in a timely manner to avoid affecting the normal operation of electrode sheets on the production line. Moreover, the useful metals in the collected electrode waste can be recovered and reused.

[0038] The inventors of this application have discovered that in the process of recycling waste materials, some technologies employ recycling rollers while others use negative pressure collection. However, the recycling roller method cannot handle situations where electrode waste is broken, requiring production to be interrupted for adjustments. In the negative pressure collection method, when electrode waste enters the negative pressure collection port, the electrode waste may be in a free and unrestrained state due to the vibration of the negative pressure airflow. This may create a risk of frictional shedding from the electrode cutting surface. The shedding caused by friction may be drawn into the electrodes on the production line, affecting product quality. Furthermore, severe burr shedding poses a safety risk of internal short circuits in the battery due to material shedding in subsequent processes.

[0039] To address the issues of waste material shaking and breakage affecting normal production, embodiments of this application provide an electrode recycling device and electrode processing equipment.

[0040] The electrode recycling device and electrode processing equipment of this application can be used in battery electrode production lines, especially at stations where electrode waste is generated, including but not limited to cutting and slitting stations. The electrode can be a positive electrode or a negative electrode, and the batteries produced from the electrode include prismatic batteries, cylindrical batteries, and pouch batteries.

[0041] Reference Figure 1 This is a schematic diagram of the electrode processing equipment according to an embodiment of this application. The electrode processing equipment according to this application embodiment may include a cutting device 2 and an electrode recycling device 1. The cutting device 2 is used to cut the electrode 3, which generates electrode waste 4. The cutting device 2 may include an upper cutting roller 21, a lower cutting roller 22, and a cutter 23. The upper cutting roller 21 and the lower cutting roller 22 rotate in cooperation, and the electrode 3 to be processed passes between the upper cutting roller 21 and the lower cutting roller 22, being transported forward. The cutter 23 can cut or slit the electrode 3 to be processed, thereby generating electrode waste 4. The electrode recycling device 1 is located near the generation of electrode waste 4, and sucks in the electrode waste 4 through a negative pressure pipe 11 for recycling.

[0042] The cutter 23 can be a metal blade or a laser cutting device. The electrode recycling device 1 can be located below the cutter 23, and can easily suck in and recycle the electrode waste 4 generated at the cutter 23 using gravity.

[0043] Due to the rotation of the lower cutter roller 22, the electrode waste 4 may slide down along the lower cutter roller 22. Therefore, the electrode recycling device 1 can be set close to the lower cutter roller 22 to facilitate the recycling of the electrode waste 4.

[0044] Reference Figure 2 This is a schematic diagram of the electrode recycling device according to an embodiment of this application. This application provides an electrode recycling device 1, including a negative pressure adsorption component and a baffle 12. The negative pressure adsorption component includes a negative pressure pipe 11 with a recycling port 111, and the inside of the negative pressure pipe 11 is configured to generate negative pressure. At least a portion of the baffle 12 is disposed at the recycling port 111. The baffle 12 has an adsorption area 121 and a through groove 122 within the range corresponding to the recycling port 111. The through groove 122 communicates with the negative pressure pipe 11, and the inner contour of the through groove 122 is larger than the outer contour of the cross-section of the electrode to be recycled. The adsorption area 121 is used to adsorb and guide the electrode to be recycled through the through groove 122.

[0045] The negative pressure pipe 11 can be a tubular structure, allowing gas to flow inside, and is sealed from the outside except for the opening. Its specific shape can be set according to actual production needs.

[0046] The negative pressure adsorption assembly includes a negative pressure pipe 11. The inside of the negative pressure pipe 11 is configured to generate negative pressure; that is, air can be drawn out of the negative pressure pipe 11 by a negative pressure device to create negative pressure. The negative pressure device can be installed inside the negative pressure pipe 11, as part of the negative pressure adsorption assembly, and is also connected to the negative pressure pipe 11; alternatively, the negative pressure device can be installed outside the negative pressure pipe 11, not part of the negative pressure adsorption assembly, and is an external device connected to the negative pressure pipe 11. The negative pressure device can be a vacuum pump.

[0047] The recovery port 111 refers to the recovery port 111 opened in the negative pressure pipe 11 towards the electrode waste 4. The negative pressure airflow in the negative pressure pipe 11 enters the negative pressure pipe 11 through the recovery port 111. Therefore, an airflow with adsorption force is formed at the recovery port 111 to recover the electrode waste 4.

[0048] The fact that at least a portion of the baffle 12 is located at the recycling port 111 means that the baffle 12 can be entirely located at the recycling port 111 or only a portion of it can be located at the recycling port 111. The structure of the baffle 12 located at the recycling port 111 can be used to achieve the adsorption and recycling of the electrode waste 4 and prevent the electrode waste 4 from shaking, while the portion of the baffle 12 not located at the recycling port 111 can be used to fix the baffle 12.

[0049] The range of the baffle 12 corresponding to the recycling port 111 refers to the area within the recycling port 111 that is blocked by the baffle 12. That is, the range included by the portion of the recycling port 111 covered by the baffle 12.

[0050] The baffle 12 is provided with an adsorption area 121 and a passage groove 122 within the range of the recycling port 111. This means that the adsorption area 121 and the passage groove 122 are set within this range. They can occupy only a part of the area, or the adsorption area 121 and the passage groove 122 can fill the entire area.

[0051] The electrode to be recycled can be electrode waste 4 or electrode 3 collected by means of suction negative pressure pipe 11, etc. For ease of description, this application uses electrode waste 4 as an example to introduce the embodiment.

[0052] The connection between the channel 122 and the negative pressure pipe 11 means that the negative pressure airflow in the negative pressure pipe 11 can be connected to the outside through the channel 122. The airflow passing through the channel 122 can generate a large suction force, so as to draw the electrode waste 4 into the channel 122 and then collect it from the negative pressure pipe 11 to a designated location.

[0053] The inner contour of the through groove 122 is larger than the outer contour of the cross-section of the electrode to be recycled. This means that, in a direction perpendicular to the airflow direction, the cross-sectional contours of the through groove 122 and the electrode waste 4 are compatible. The outer contour of the cross-section of the electrode waste 4 is smaller than the inner contour of the through groove 122, thus allowing the electrode waste 4 to pass smoothly through the through groove 122 and enter the negative pressure pipe 11.

[0054] The electrode recycling device 1 provided in this application includes a negative pressure pipe 11 and a baffle 12. Negative pressure can be generated inside the negative pressure pipe 11, and the baffle 12 is provided with an adsorption area 121 and a passage area within the range corresponding to the recycling port 111. When it is necessary to recycle electrode waste 4, the electrode waste 4 can be adsorbed at the recycling port 111 through the adsorption area 121 of the baffle 12, so that the electrode waste 4 is close to the passage groove 122. The negative pressure in the negative pressure pipe 11 is connected with the passage groove 122, so that the electrode waste 4 at the recycling port 111 can be sucked into the negative pressure pipe 11 and then recycled into the corresponding recycling area. During the recycling process, since the negative pressure pipe 11 can provide continuous negative pressure suction, even if the electrode waste 4 breaks, it will be continuously sucked into the negative pressure pipe 11, which can smoothly recycle the electrode waste 4. In addition, the adsorption area 121 of the baffle 12 can continuously provide adsorption force to the electrode waste 4 during the movement of the electrode waste 4, so that the electrode waste 4 is kept at the recycling port 111, thereby reducing the shaking of the electrode waste 4 and making the production smoother.

[0055] During the recycling of electrode waste 4, the adsorption region 121 has a certain adsorption force, which can pull or guide the electrode waste 4 to the vicinity of the through channel 122. The through channel 122 is connected to the negative pressure pipe 11, generating a large suction force, which can suck the nearby electrode waste 4 into the negative pressure pipe 11. Therefore, the suction force of the adsorption region 121 can be less than the suction force of the through channel 122, and the adsorption region 121 can be used to adsorb and guide the electrode waste 4 through the through channel 122.

[0056] During the operation of the electrode recycling device, the end of the electrode waste 4 can be inserted into the through groove 122 before starting the equipment. This facilitates the suction of the electrode waste 4 into the negative pressure pipe 11. The side of the electrode waste 4 can be subjected to a certain suction force from the adsorption area 121, reducing vibration of the electrode waste 4. Alternatively, the end of the electrode waste 4 can be inserted into the through groove 122 without directly starting the equipment. The adsorption area 121 can be used to adsorb and guide the electrode waste 4, and the suction force at the groove 122 will suck the electrode waste 4 into the negative pressure pipe 11. Especially in the case of electrode waste 4 breaking, due to the presence of the adsorption area 121, the broken electrode waste 4 can be adsorbed again and guided to the vicinity of the through groove 122, and then normally sucked into the negative pressure pipe 11 without stopping the machine. Even if the adsorption area 121 causes some accumulation of electrode waste 4, the strong negative pressure at the through groove 122 will suck it into the negative pressure pipe 11, allowing production to continue normally.

[0057] Furthermore, the electrode recycling device 1 provided in this application is applicable not only to the method of directly suctioning away electrode waste 4 under negative pressure, but also to the method of traction of electrode waste 4. That is, the adsorption area 121 and the through groove 122 can continuously provide adsorption force to adsorb and traction the electrode waste 4. This solves the problem of electrode waste 4 breaking due to tension or cutting issues under traction methods. Moreover, the electrode recycling device 1 provided in this application can also suck in and collect impurities generated during the production process through the adsorption area 121 and the through groove 122.

[0058] The adsorption area 121 can adsorb electrode waste 4. Its adsorption force can be provided by the negative pressure of the negative pressure pipe 11, or by other structures or its own material properties, such as connecting the negative pressure pipe 11, suction cup, magnetic adsorption, etc.

[0059] Reference Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the structure of the baffle in the electrode recycling device according to an embodiment of this application. Figure 4 This is a top view of the baffle of the electrode recovery device according to an embodiment of this application. In some embodiments of this application, the adsorption region 121 is provided with a plurality of adsorption holes 123, and the adsorption holes 123 are connected to the negative pressure pipe 11.

[0060] Multiple adsorption holes 123 are provided within the adsorption area 121, and the adsorption holes 123 are connected to the negative pressure pipe 11. Thus, due to the negative pressure within the negative pressure pipe 11, a portion of the airflow can enter the negative pressure pipe 11 through the adsorption holes 123, thereby giving the adsorption holes 123 a certain adsorption force. This force can adsorb the electrode waste 4 towards the baffle 12, adsorbing and guiding the electrode waste 4 from the through groove 122 into the negative pressure pipe 11. The adsorption and guiding effect of the adsorption holes 123 can reduce or prevent the shaking of the electrode waste 4, ensuring normal production operation.

[0061] Moreover, the design of multiple adsorption holes 123 forming multiple flow channels can create multiple negative pressure airflows, making the negative pressure adsorption effect stronger and forming a fixed adsorption direction. Foreign matter such as material falling off the electrode 3 due to cutting can be completely adsorbed away, avoiding affecting the subsequent process.

[0062] The size of the adsorption hole 123 can be smaller than the size of the electrode waste 4. As a result, the electrode waste 4 is then drawn towards the adsorption hole 123 and will not pass through the adsorption hole 123. The adsorption hole 123 can continuously adsorb and control the position of the electrode waste 4. Since the adsorption hole 123 is smaller than the size of the electrode waste 4, and the inner contour of the passage groove 122 is larger than the outer contour of the cross section of the electrode waste 4, that is, the adsorption hole 123 is smaller than the passage groove 122, the intensity of the negative pressure airflow of the adsorption hole 123 and the passage groove 122, which are also connected to the negative pressure pipe 11, is different. More negative pressure airflow passes through the passage groove 122. Even if the electrode waste 4 is continuously adsorbed by the adsorption hole 123, it will be carried away by the stronger negative pressure airflow and drawn into the negative pressure pipe 11 through the passage groove 122.

[0063] The arrangement of multiple adsorption holes 123 within the adsorption region 121 can be implemented in various ways. They can be set at corresponding positions as needed, or they can be arranged at all positions within the adsorption region 121. Moreover, the multiple adsorption holes 123 can be evenly distributed within the adsorption region 121, which facilitates processing, and the electrode waste 4 adsorbed by the adsorption holes 123 is subjected to uniform force, further reducing the vibration of the electrode waste 4.

[0064] In addition, the shape of the adsorption hole 123 can be various, such as round hole, square hole, polygonal hole, irregular hole, etc. The specific shape can be set according to design requirements.

[0065] The pore size of adsorption pores 123 can be uniform, i.e., straight pores; the pore size of adsorption pores 123 can also be varied. To increase the reliability of adsorption pores 123 when adsorbing electrode waste 4, refer to... Figure 5 ,for Figure 4 The cross-sectional schematic diagram at point AA shows that, in some embodiments of this application, the opening of the adsorption hole 123 facing into the negative pressure pipe 11 is smaller than the opening facing outward.

[0066] The opening of the adsorption hole 123 facing into the negative pressure pipe 11 is smaller than the opening facing outward. The diameter of the adsorption hole 123 can be smoothly varied. The adsorption hole 123 can be in the form of a conical hole, a trapezoidal hole, a triangular pyramid, a multi-sided pyramid, etc.

[0067] In this embodiment, the opening of the adsorption hole 123 facing outward is the end that directly adsorbs the electrode waste 4. The increased area of ​​the opening at this end increases the adsorption area when adsorbing the electrode waste 4, thereby improving the adsorption force and making the adsorption of the electrode waste 4 more reliable.

[0068] The adsorption force of the adsorption region 121 can be provided by other structures or the inherent material properties. For example, an adsorption structure can be added to the adsorption region 121, or the adsorption region 121 itself can have an adsorption function. This adsorption structure or adsorption function can be magnetic adsorption, suction cup adsorption, etc. Based on this, magnetic adsorption and suction cups can come into contact with the electrode waste 4 to provide a certain adsorption force, so that the electrode waste 4 can be held in the adsorption region 121. The strong negative pressure at the groove 122 can draw the electrode waste 4 held in the adsorption region 121 into the negative pressure pipe 11, thereby realizing the recycling of the electrode waste 4.

[0069] In some embodiments of this application, a magnetic attraction structure is provided within the adsorption region 121. The adsorption function of the adsorption region 121 is achieved through the magnetic attraction structure.

[0070] The magnetic attraction structure can be a magnetic coating applied to the stop 12, or a magnetic sheet with magnetic adsorption capability fixedly installed on the stop 12. Fixing can be achieved through bonding, snap-fitting, or fastener connection. The magnetic attraction structure can also be made of the material of the stop 12 itself; for example, at least the substrate of the stop 12 in the adsorption area 121 can be made of a magnetic material. Alternatively, the entire adsorption area 121 or even the entire stop 12 can be made of a magnetic material.

[0071] It should be noted that the adsorption area 121 may only have adsorption holes 123, or only have a magnetic structure, or it may have both adsorption holes 123 and a magnetic structure. The magnetic structure can not only assist in adsorbing the electrode waste 4, but also adsorb metal shavings and other debris from the electrode 3 cutting point, preventing these metal shavings from falling onto the electrode 3 on the production line and affecting the subsequent production quality; it can also adsorb other metal debris that is about to be brought into the negative pressure pipe 11 by the negative pressure airflow, preventing these metal debris from entering the recycled electrode waste 4 and affecting the metal purity during the subsequent recycling of the electrode waste 4.

[0072] In the electrode recycling device 1 of this application embodiment, after the electrode waste 4 passes through the through groove 122 and enters the negative pressure pipe 11, it will continue to move in the negative pressure pipe 11 with the negative pressure airflow. The opening direction of the through groove 122 may be consistent with the extension direction of the negative pressure pipe 11, or it may not be consistent with it.

[0073] In order to make the movement of the electrode waste 4 smoother after passing through the through groove 122, in some embodiments of this application, the direction in which the through groove 122 is opened from the outer surface of the baffle 12 into the negative pressure pipe 11 is consistent with the extension direction of the negative pressure pipe 11.

[0074] In this way, after the electrode waste 4 passes through the through groove 122, it can be transported and collected directly along the negative pressure pipe 11 without turning, which is convenient for collection and helps to reduce the shaking of the electrode waste 4.

[0075] The groove 122 is set within the range of the corresponding recycling port 111 of the stop 12, and can be located in the middle or at the edge.

[0076] Reference Figure 3 and Figure 4 In some embodiments of this application, one end of the stop 12 is provided with a notch, which forms a through groove 122.

[0077] The groove 122 is located at one end of the stop 12, that is, the groove 122 is formed on the edge of the stop 12.

[0078] In this embodiment, the groove 122 is a notch structure formed at the edge of the stop 12, which facilitates production and molding. Additionally, please refer to... Figure 1 and Figure 2 In the embodiment where the electrode recycling device 1 is installed in an electrode processing equipment having an upper cutting roller 21 and a lower cutting roller 22, the through groove 122 with a notch structure formed at the edge of the stop 12 can approach the lower cutting roller 22 and cooperate with the lower cutting roller 22 to facilitate the recycling of the electrode waste 4 that slides down with the lower cutting roller 22.

[0079] The shape and size of the groove 122 determine the space in which the electrode waste 4 can move. The shape of the groove 122 can be adapted to the radial contour of the electrode waste 4, or it can cover the radial contour of the electrode 3, so that the electrode waste 4 can pass through the groove 122 smoothly. At the same time, the size of the groove 122 can be no smaller than the radial contour of the electrode waste 4, so that the electrode waste 4 can pass through the groove 122 smoothly. If the radial contour of the groove 122 is larger than the radial contour of the electrode waste 4, while allowing the electrode waste 4 to pass through smoothly, the groove 122 can limit the radial movement of the electrode waste 4, reduce the radial space in which the electrode waste 4 can vibrate, and further reduce the vibration of the electrode waste 4.

[0080] Therefore, in some embodiments of this application, there is a limiting gap between the inner wall of the groove 122 and the electrode to be recycled.

[0081] The limiting gap between the inner wall of the channel 122 and the electrode to be recycled allows the electrode waste 4 to pass through smoothly while limiting the radial direction of the electrode waste 4.

[0082] The limiting gap refers to a certain distance between the electrode waste 4 and the through groove 122, provided that the electrode waste 4 can pass through the through groove 122. This gap allows the electrode waste 4 to pass smoothly through the through groove 122 without having too much radial jitter space. For example, the limiting gap can be 0.1-1.5mm, and in some embodiments, it can be 1mm.

[0083] In the electrode recycling device 1 of this application embodiment, the baffle 12 can be manufactured separately and then fixed at the recycling port 111 of the negative pressure pipe 11, or it can be directly integrally formed with the negative pressure pipe 11. Among them, the separately manufactured baffle 12 is convenient to produce and manufacture; the baffle 12 integrally formed with the negative pressure pipe 11 can reduce assembly steps.

[0084] In embodiments where the stop 12 is manufactured separately and then fixed to the negative pressure pipe 11, the stop 12 can be detachably connected to the negative pressure pipe 11 or it can be non-detachably connected. Detachable connections can include fastener connections, snap-fit ​​connections, magnetic connections, etc.; non-detachable connections can include welding, bonding, riveting, etc.

[0085] Reference Figure 2 , Figure 3 and Figure 5 In order to facilitate the connection between the baffle 12 and the negative pressure pipe 11, in some embodiments of this application, the baffle 12 includes a connecting section 124 and a covering section 125 connected to each other. The connecting section 124 is connected to the negative pressure pipe 11, and the covering section 125 corresponds to the range of the recovery port 111. The connecting section 124 and the covering section 125 are set at a first angle, and the connecting section 124 is detachably connected to the negative pressure pipe 11.

[0086] The covering section 125 corresponds to the recovery port 111. The adsorption area 121 and the passage groove 122 can be set in the covering section 125; the connecting section 124 can be used to fix the baffle 12 at the recovery port 111. Since the covering section 125 covers the recovery port 111, and the covering section 125 mainly corresponds to the recovery port 111, its contact area with the side wall of the negative pressure pipe 11 is small, which is not conducive to connection and fixation. Therefore, referring to... Figure 3 and Figure 5The stop 12 includes a connecting section 124 connected to the cover section 125, and the connecting section 124 is set at a first angle α with the cover section 125, so that the connecting section 124 can be easily connected to the side wall of the negative pressure pipe 11. (Refer to...) Figure 5 The first angle 'a' can be 90°.

[0087] Based on this, in order to facilitate the detachable connection between the connecting section 124 and the negative pressure pipe 11, in some embodiments of this application, the connecting section 124 is provided with a connecting hole 1241, and the connecting section 124 is installed in the connecting hole 1241 by fasteners to connect with the negative pressure pipe 11.

[0088] There can be one or more connection holes 1241, and the specific number can be set as needed, which is not limited here.

[0089] When the baffle 12 is fixed to the negative pressure pipe 11, the covering section 125 of the baffle 12 needs to correspond to the recovery port 111. Therefore, in order to adjust the relative position of the baffle 12 and the negative pressure pipe 11, the connecting hole 1241 can be a long hole, an arc hole, a cross hole, etc., to facilitate the adjustment of the relative position of the baffle 12 and the negative pressure pipe 11. When there are multiple connecting holes 1241, each hole can have a structure with a long hole, an arc hole, or a cross hole.

[0090] In some embodiments of this application, the stop 12 can be snapped into the negative pressure pipe 11. One of the stop 12 and the negative pressure pipe 11 is provided with a slot, and the other is provided with a hook. By engaging the hook in the slot, the stop 12 and the negative pressure pipe 11 can be snapped into each other.

[0091] In some embodiments of this application, the stop 12 can be magnetically connected to the negative pressure pipe 11. The contact area between the stop 12 and the negative pressure pipe 11 can be made of a magnetic material, or the entire stop 12 can be made of a magnetic material. The stop 12 can also be provided with a magnetic coating or have a fixed magnetic element. Based on this, in embodiments where the stop 12 includes a connecting section 124 and a covering section 125, the connecting section 124 can be made of a magnetic material, have a magnetic coating, or have a fixed magnetic element.

[0092] The baffle 12 can be made of either a metal or a non-metallic material. For example, in an embodiment where the baffle 12 is integrally formed with the negative pressure pipe 11, the baffle 12 can be made of a metal, such as stainless steel. In an embodiment where the baffle 12 is manufactured separately and then fixed to the negative pressure pipe 11, the baffle 12 can be made of a non-metallic material, such as nylon. Using a non-metallic material for the baffle 12 reduces costs and facilitates manufacturing; moreover, it avoids the generation of metallic foreign matter dust when the baffle 12 is connected to the recovery port 111 of the negative pressure pipe 11.

[0093] In some embodiments of this application, the recycling port 111 can be a rectangular opening with a length of 60 mm and a width of 30 mm. (See reference...) Figure 3 , Figure 4 and Figure 5 Both the connecting section 124 and the covering section 125 of the baffle 12 are rectangular plate structures. The extension length m of the connecting section 124 can be 30mm to facilitate connection with the side wall of the negative pressure pipe 11; the extension length n of the covering section 125 can be 60mm to cover the recovery port 111; the thickness of the entire baffle 12 is uniform and can be 2mm. The edge of the covering section 125 of the baffle 12 is provided with a through groove 122, which can be a rectangular groove extending 7mm inward from the edge of the covering section 125 and with a length of 35mm. Multiple adsorption holes 123 are arranged in the adsorption area 121 within the covering section 125. The adsorption holes 123 can be cylindrical holes, with a diameter of 5 mm. Up to four rows can be arranged along the extension direction of the covering section 125, and three rows can be arranged at the position of the through groove 122. Thus, along the length direction of the through groove 122, the adsorption holes 123 can be arranged in a regular pattern of four-three-three-three-three-three-four, covering the entire covering section 125.

[0094] This application also provides an electrode processing apparatus, with reference to... Figure 1 The device includes a cutting device 2 and an electrode recycling device 1 as described in the above embodiment. The cutting device 2 is used to cut the electrode 3. The electrode recycling device 1 is disposed on at least one side of the cutting device 2 and is used to recycle the electrode to be recycled generated after the cutting device 2 cuts the electrode 3.

[0095] In the electrode processing equipment of this application, since the electrode recycling device 1 of the above embodiment is included, the same beneficial effects can be achieved. That is, the electrode waste 4 can be successfully recycled without being affected by the breakage of the electrode waste 4, and the shaking of the electrode waste 4 is reduced.

[0096] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrode tab recovery device (1), characterized by, include: The negative pressure adsorption assembly includes a negative pressure pipe (11) having a recovery port (111) and the interior of the negative pressure pipe (11) being configured to generate negative pressure. A baffle (12) is provided at least in the recycling port (111). The baffle (12) has an adsorption area (121) and a through groove (122) within the range of the recycling port (111). The through groove (122) is connected to the negative pressure pipe (11), and the inner contour of the through groove (122) is larger than the outer contour of the cross section of the electrode to be recycled. The adsorption area (121) is used to adsorb and guide the electrode to be recycled through the through groove (122).

2. The pole piece recycling device (1) according to claim 1, characterized in that The adsorption area (121) is provided with a plurality of adsorption holes (123), and the adsorption holes (123) are connected to the negative pressure pipe (11).

3. The pole piece recycling device (1) according to claim 2, characterized in that The opening of the adsorption hole (123) facing into the negative pressure pipe (11) is smaller than the opening facing outward.

4. The pole piece recycling device (1) according to claim 1, characterized in that The adsorption area (121) is provided with a magnetic adsorption structure.

5. The pole piece recycling device (1) according to claim 1, characterized in that The direction in which the groove (122) is opened from the outer surface of the baffle (12) into the negative pressure pipe (11) is consistent with the extension direction of the negative pressure pipe (11).

6. The pole piece recycling device (1) according to claim 1, characterized in that One end of the stop (12) is provided with a notch, which forms the passage groove (122).

7. The pole piece recycling device (1) according to claim 1, characterized in that There is a limiting gap between the inner wall of the through groove (122) and the electrode to be recycled passing through the through groove (122).

8. The pole piece recycling device (1 ) according to any one of claims 1 to 7, characterized in that The baffle (12) includes a connecting section (124) and a covering section (125) connected to each other. The connecting section (124) is connected to the negative pressure pipe (11), and the covering section (125) corresponds to the range of the recovery port. The connecting section (124) and the covering section (125) are set at a first angle (a). The connecting section (124) is detachably connected to the negative pressure pipe (11).

9. The pole piece recycling device (1) according to claim 8, characterized in that The connecting section (124) is provided with a connecting hole (1241), and the connecting section (124) is installed in the connecting hole (1241) by fasteners to connect with the negative pressure pipe (11).

10. A pole piece processing apparatus characterized by comprising: include: The cutting device (2) is used to cut the electrode sheet (3); The electrode recycling device (1) according to any one of claims 1 to 9 is disposed on at least one side of the cutting device (2) for recycling the electrode to be recycled generated after the cutting device (2) cuts the electrode (3).

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