Battery pole piece powder removal device

Abstract

This application discloses a battery electrode powder removal device, including a main body, a separation mechanism, and an air sweeping mechanism. The main body has a separation chamber, and the separation mechanism is located inside the separation chamber and connected to the main body. The separation mechanism can move within the separation chamber to beat and separate the material entering the separation chamber. The main body has a feed inlet communicating with the separation chamber. The air sweeping mechanism is located inside the separation chamber and on the side away from the feed inlet. The air sweeping mechanism is used to deliver airflow into the separation chamber to slow down the falling of the material. This application uses the movement of the separation mechanism within the separation chamber to beat and separate the material. Simultaneously, by setting up the air sweeping mechanism within the separation chamber and utilizing it to deliver airflow into the separation chamber, the falling time of the material within the separation chamber is slowed down. This allows the separation mechanism to thoroughly beat the material, resulting in more complete separation of different substances within the material, thereby improving the powder removal efficiency and effect of the battery electrode powder removal device.

Description

Technical Field

[0001] This application belongs to the field of battery technology, specifically relating to a battery electrode powder removal device. Background Technology

[0002] With the rapid development of industries such as mobile phones, laptops, and new energy vehicles, the demand for lithium batteries is constantly increasing. However, after years of use and charging, the internal structure of lithium batteries changes, which increases the risk of combustion and leakage. Recycling lithium batteries can effectively solve problems such as explosions, environmental pollution, and resource waste.

[0003] In related technologies, active materials and current collectors in battery electrodes are generally separated by lithium battery electrode de-powdering devices. However, the de-powdering efficiency is low and the de-powdering is incomplete, resulting in some active materials still adhering to the current collector, which affects the recycling rate of lithium batteries. Utility Model Content

[0004] This application aims to provide a battery electrode powder removal device that can solve the problems of low powder removal efficiency and incomplete powder removal in related technologies.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides a battery electrode powder removal device, comprising: a main body, a separation mechanism, and a wind sweeping mechanism;

[0007] The main body of the equipment is provided with a separation chamber, and the separation mechanism is located in the separation chamber and connected to the main body of the equipment. The separation mechanism can move in the separation chamber to beat and separate the material entering the separation chamber.

[0008] The main body of the device is provided with a feed inlet communicating with the separation chamber. The air sweeping mechanism is located inside the separation chamber and on the side away from the feed inlet. The air sweeping mechanism is used to deliver airflow into the separation chamber to slow down the falling of materials.

[0009] Optionally, the separation mechanism includes a drive component, a transmission assembly, and multiple striking components;

[0010] The separation chamber is provided with a mounting bracket, which is fixedly connected to the main body of the equipment. The driving component is mounted on the mounting bracket. A plurality of the beating components are arranged circumferentially around the mounting bracket, and the beating components are movably connected to the mounting bracket. The driving component is connected to the plurality of beating components through the transmission component. The driving component is used to drive the transmission component to move, so as to drive the plurality of beating components to reciprocate to beate and separate the material.

[0011] Optionally, the transmission assembly includes a first gear, a plurality of second gears, and a plurality of oscillating components;

[0012] The first gear is connected to the drive component, and a plurality of second gears are arranged circumferentially around the first gear and mesh with the first gear; the swing assembly is drivenly connected to the second gears, each swing assembly is slidably connected to one of the tapping assemblies, and the swing assembly can slide back and forth relative to the tapping assembly along the radial direction of the first gear to drive the tapping assembly to swing back and forth relative to the mounting bracket.

[0013] Optionally, the swing assembly includes a first link, a second link, a third link, and a slider;

[0014] One end of the first connecting rod is rotatably connected to the mounting bracket, the second connecting rod is rotatably connected to the other end of the first connecting rod, one end of the second connecting rod is fixedly connected to the second gear, the other end of the second connecting rod is fixedly connected to one end of the third connecting rod, the other end of the third connecting rod is rotatably connected to the slider, the slider is slidably connected to the tapping assembly, and the slider can slide relative to the tapping assembly along the radial direction of the first gear.

[0015] Optionally, the air sweeping mechanism includes a fan and an air supply duct;

[0016] The air supply duct is located inside the separation chamber and on the side of the separation mechanism away from the feed inlet. The air supply duct is arranged around the cavity wall of the separation chamber and has multiple air outlets. The fan is connected to the air supply duct to deliver airflow to the multiple air outlets.

[0017] Optionally, the battery electrode powder removal device further includes a material guiding component and a demagnetizing mechanism;

[0018] The main body of the equipment is also provided with a demagnetizing chamber, which is located on the side of the separation chamber away from the feed inlet. The demagnetizing mechanism is located in the demagnetizing chamber and connected to the main body of the equipment. The material guide is located between the demagnetizing chamber and the separation chamber and is connected to the main body of the equipment. The material guide is used to guide the material in the separation chamber to the demagnetizing mechanism so that the magnetic substances in the material can be separated by the demagnetizing mechanism.

[0019] Optionally, the demagnetizing mechanism includes a roller, a magnetic component, and a separating plate;

[0020] The magnetic component is fixedly connected to the main body of the equipment. The roller is sleeved on the outer periphery of the magnetic component. The roller is rotatably connected to the main body of the equipment. The roller can rotate relative to the magnetic component. The magnetic component is semi-cylindrical.

[0021] The separation plate is located on the side of the roller away from the separation mechanism. The separation plate is fixedly connected to the main body of the equipment and is used to export the magnetic material separated from the roller.

[0022] Optionally, the guide member extends recessedly from the separation chamber to the demagnetizing chamber to form a guide chamber. From the separation chamber to the demagnetizing chamber, the flow cross-sectional area of ​​the guide chamber gradually decreases. The end of the guide member away from the separation chamber is provided with a discharge port communicating with the guide chamber, and the discharge port faces the roller.

[0023] Optionally, the battery electrode powder removal device further includes a sieving mechanism; the main body of the equipment is also provided with a sieving chamber, the sieving chamber is located on the side of the demagnetizing chamber away from the separation chamber, and the sieving mechanism is disposed in the sieving chamber and connected to the main body of the equipment;

[0024] The screening mechanism includes a screen, a collecting tray, and a vibrating element; the screen, the collecting tray, and the vibrating element are all connected to the main body of the equipment. The screen is located on the side of the demagnetizing mechanism away from the separating mechanism, and the collecting tray is located on the side of the screen away from the demagnetizing mechanism, for collecting the screened material; the vibrating element is connected to the screen and is used to vibrate the screen to screen the material.

[0025] Optionally, the battery electrode powder removal device further includes a flow guide; the flow guide is disposed between the separation mechanism and the feed inlet, and the outer surface of the flow guide is conical.

[0026] In the embodiments of this application, a separation mechanism is provided in the separation chamber of the main body of the device, and a feed inlet communicating with the separation chamber is provided on the main body of the device. In this way, the material enters the separation chamber through the feed inlet, and the material is separated by beating it using the movement of the separation mechanism in the separation chamber. At the same time, an air sweeping mechanism is provided in the separation chamber to deliver airflow into the separation chamber, thereby slowing down the time it takes for the material to fall in the separation chamber. In this way, the separation mechanism can fully beat the material in the separation chamber, thereby making the separation of different substances in the material more thorough, thus improving the de-powdering efficiency and de-powdering effect of the battery electrode de-powdering device.

[0027] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1This is one of the structural schematic diagrams of a battery electrode powder removal device according to an embodiment of this application;

[0030] Figure 2 This is a second schematic diagram of the structure of the battery electrode powder removal device according to an embodiment of this application;

[0031] Figure 3 This is one of the structural schematic diagrams of the separation mechanism according to an embodiment of this application;

[0032] Figure 4 This is a second schematic diagram of the separation mechanism according to an embodiment of this application;

[0033] Figure 5 This is a top view of the separation mechanism according to an embodiment of this application;

[0034] Figure 6 This is one of the structural schematic diagrams of the demagnetizing mechanism according to an embodiment of this application;

[0035] Figure 7 This is a second schematic diagram of the demagnetizing mechanism according to an embodiment of this application;

[0036] Figure 8 This is the third schematic diagram of the demagnetizing mechanism according to an embodiment of this application;

[0037] Figure 9 This is a schematic diagram of the screening mechanism according to an embodiment of this application.

[0038] Figure label:

[0039] 10. Main body of the equipment; 11. Separation chamber; 111. Mounting bracket; 12. Feed inlet; 13. Demagnetizing chamber; 14. Screening chamber; 20. Separation mechanism; 21. Driving component; 22. Transmission assembly; 221. First gear; 222. Second gear; 223. Swing assembly; 2231. First connecting rod; 2232. Second connecting rod; 2233. Third connecting rod; 2234. Slider; 23. Beating assembly; 231. Fourth connecting rod; 232, striking plate; 30, air sweeping mechanism; 31, fan; 32, air supply duct; 321, air outlet; 40, material guide; 41, discharge port; 50, demagnetizing mechanism; 51, roller; 52, magnetic component; 53, separating plate; 60, screening mechanism; 61, screen; 62, collecting tray; 63, vibrating component; 64, guide plate; 65, first receiving port; 66, second receiving port; 70, guide component. Detailed Implementation

[0040] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0041] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] The battery electrode powder removal device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0045] Generally, after prolonged use and charging, the internal structure of lithium batteries changes, increasing the risk of combustion and leakage. Recycling lithium batteries can effectively address issues such as explosions, environmental pollution, and resource waste. The electrode is a core component of a lithium-ion battery, mainly composed of a positive electrode, a negative electrode, and a current collector. The positive electrode typically consists of active materials (such as lithium cobalt oxide, ternary materials, and lithium iron phosphate), conductive agents, and binders. These materials contain valuable metallic elements (such as lithium, cobalt, nickel, and manganese). The negative electrode is mainly composed of graphite or silicon-based materials coated onto a copper foil current collector. Although graphite is relatively inexpensive, it can be recycled and reused in new batteries or industrial materials. The current collector refers to copper or aluminum foil; generally, copper foil is used for the positive electrode and aluminum foil for the negative electrode. Both copper and aluminum are metals and have direct recycling value.

[0046] However, in related technologies, active materials and current collectors in the electrode sheets are separated by a battery electrode powder removal device for classification and recycling. However, the powder removal device in the related technologies has poor powder removal effect and low efficiency, which affects the recycling rate of lithium-ion batteries.

[0047] like Figure 1 As shown in the embodiment of this application, a battery electrode powder removal device includes a main body 10, a separation mechanism 20, and an air sweeping mechanism 30. The main body 10 is provided with a separation chamber 11, and the separation mechanism 20 is located in the separation chamber 11 and connected to the main body 10. The separation mechanism 20 can move in the separation chamber 11 to beat and separate the material entering the separation chamber 11. The main body 10 is provided with a feed inlet 12 communicating with the separation chamber 11. The air sweeping mechanism 30 is located in the separation chamber 11 and is located on the side of the separation mechanism 20 away from the feed inlet 12. The air sweeping mechanism 30 is used to deliver airflow into the separation chamber 11 to slow down the falling of the material.

[0048] In this embodiment, a separation mechanism 20 is provided in the separation chamber 11 of the main body 10 of the device, and a feed inlet 12 communicating with the separation chamber 11 is provided on the main body 10 of the device. In this way, the material enters the separation chamber 11 through the feed inlet 12, and the material is separated by the movement of the separation mechanism 20 in the separation chamber 11. At the same time, an air sweeping mechanism 30 is provided in the separation chamber 11 to deliver airflow into the separation chamber 11, so as to slow down the time of material falling in the separation chamber 11. In this way, the separation mechanism 20 can fully beat the material in the separation chamber 11, thereby making the separation of different substances in the material more thorough, thereby improving the de-powdering efficiency and de-powdering effect of the battery electrode de-powdering device.

[0049] It should be noted that in the lithium-ion battery electrode recycling process, the battery electrodes are first crushed and heated sequentially to facilitate subsequent de-powdering. After crushing and heating, the electrodes enter the separation chamber 11 through the feed inlet 12. The separation mechanism 20 continuously taps the electrodes in the separation chamber 11 to separate the active material and current collector in the electrodes.

[0050] In some embodiments, such as Figure 2 and Figure 3 As shown, the separation mechanism 20 includes a drive component 21, a transmission assembly 22, and multiple beating components 23; a mounting bracket 111 is provided in the separation chamber 11, and the mounting bracket 111 is fixedly connected to the main body 10 of the equipment. The drive component 21 is mounted on the mounting bracket 111; multiple beating components 23 are arranged circumferentially around the mounting bracket 111, and the beating components 23 are movably connected to the mounting bracket 111. The drive component 21 is connected to the multiple beating components 23 through the transmission assembly 22. The drive component 21 is used to drive the transmission assembly 22 to move, so as to drive the multiple beating components 23 to swing back and forth to beat and separate the material.

[0051] In this embodiment, by setting up a driving component 21, a transmission component 22, and a tapping component 23, the driving component 21 drives the transmission component 22 to move, thereby driving the tapping component 23 to move within the separation chamber 11, so that the tapping component 23 taps and separates the electrode sheets within the separation chamber 11; at the same time, by circumferentially arranging multiple tapping components 23 around the mounting bracket 111, more tapping components 23 can tap and separate the electrode sheets, thereby improving the de-powdering efficiency and de-powdering effect of the battery electrode sheet de-powdering device.

[0052] It should be noted that the drive component 21 can be either a servo motor or a cylinder. Servo motor drives have the advantages of fast response speed and high transmission efficiency, while cylinder drives have a simple structure and low maintenance cost. Of course, the specific type of drive component 21 can be selected according to actual needs, and this embodiment does not limit it.

[0053] In some embodiments, such as Figure 3 and Figure 4 As shown, the transmission assembly 22 includes a first gear 221, a plurality of second gears 222, and a plurality of swing assemblies 223; the first gear 221 is connected to the drive member 21, the plurality of second gears 222 are arranged circumferentially around the first gear 221 at intervals, and the plurality of second gears 222 mesh with the first gear 221; the swing assembly 223 is drivenly connected to the second gears 222, each swing assembly 223 is slidably connected to a tapping assembly 23, and the swing assembly 223 can slide back and forth relative to the tapping assembly 23 along the radial direction of the first gear 221 to drive the tapping assembly 23 to swing back and forth relative to the mounting bracket 111.

[0054] In this embodiment of the application, by using the first gear 221, a plurality of second gears 222 and a plurality of swing components 223 as the transmission components 22, not only is the structure compact and complex motion transmission can be achieved in a limited space, but it also has good operational stability and reliability, thereby improving the de-powdering efficiency of the battery electrode de-powdering device.

[0055] In some embodiments, such as Figure 3 and Figure 5 As shown, the swing assembly 223 includes a first connecting rod 2231, a second connecting rod 2232, a third connecting rod 2233, and a slider 2234. One end of the first connecting rod 2231 is rotatably connected to the mounting bracket 111, the second connecting rod 2232 is rotatably connected to the other end of the first connecting rod 2231, one end of the second connecting rod 2232 is fixedly connected to the second gear 222, the other end of the second connecting rod 2232 is fixedly connected to one end of the third connecting rod 2233, the other end of the third connecting rod 2233 is rotatably connected to the slider 2234, the slider 2234 is slidably connected to the tapping assembly 23, and the slider 2234 can slide relative to the tapping assembly 23 along the radial direction of the first gear 221.

[0056] In this embodiment, by using the first link 2231, the second link 2232, the third link 2233, and the slider 2234 as the swing assembly 223, the circular motion of the first gear 221 and the second gear 222 can be converted into the radial sliding of the slider 2234 along the first gear 221 via the first link 2231, the second link 2232, and the third link 2233, thereby causing the striking assembly 23 to reciprocate relative to the mounting bracket 111. This connection structure is not only compact but also convenient for installation and disassembly.

[0057] Specifically, the tapping assembly 23 includes a fourth link 231 and a tapping plate 232. One end of the fourth link 231 is rotatably connected to the mounting bracket 111, and the other end of the fourth link 231 is fixedly connected to the tapping plate 232. The fourth link 231 passes through the slider 2234, which can slide relative to the fourth link 231 along the radial direction of the first gear 221, thereby driving the tapping plate 232 to reciprocate around the axial direction of the mounting bracket 111 to tap and separate the electrode sheets in the separation chamber 11.

[0058] In some embodiments, such as Figure 2 As shown, the air sweeping mechanism 30 includes a fan 31 and an air supply duct 32. The air supply duct 32 is located inside the separation chamber 11 and on the side of the separation mechanism 20 away from the feed inlet 12. The air supply duct 32 is arranged around the cavity wall of the separation chamber 11 and has multiple air outlets 321. The fan 31 is connected to the air supply duct 32 to deliver airflow to the multiple air outlets 321.

[0059] In this embodiment, by setting a fan 31 and an air supply pipe 32, the air supply pipe 32 is set on the side of the separation chamber 11 away from the feed inlet 12, and multiple air outlets 321 are set on the air supply pipe 32, so that the fan 31 delivers high-pressure airflow to the air outlets 321 through the air supply pipe 32, thereby causing the high-pressure airflow flowing out from the air outlets 321 to blow the electrode sheets falling in the separation chamber 11. This not only slows down the falling speed of the electrode sheets, allowing the electrode sheets to be fully beaten by the beating component 23, but also reduces the risk of the electrode sheets adhering to the surface of the beating component 23, thereby improving the de-powdering effect of the battery electrode sheet de-powdering device.

[0060] Specifically, the fan 31 can be connected to the main body 10 of the equipment and electrically connected to an external power source. The air supply duct 32 is connected to the fan 31 and is arranged around the cavity wall of the separation chamber 11. Multiple air outlets 321 on the air supply duct 32 are evenly distributed around the cavity wall of the separation chamber 11. The air outlets 321 have an inclined surface facing the beater assembly 23, so that the airflow from the air outlets 321 blows towards the electrode and the beater assembly 23.

[0061] It should be noted that the number of air outlets 321 and the spacing between two adjacent air outlets 321 can be flexibly set according to actual process requirements, and this application embodiment does not limit them.

[0062] In some embodiments, such as Figure 1 and Figure 6 As shown, the battery electrode powder removal device also includes a material guide 40 and a demagnetizing mechanism 50; the main body 10 of the equipment is also provided with a demagnetizing chamber 13, which is located on the side of the separation chamber 11 away from the feed inlet 12. The demagnetizing mechanism 50 is located in the demagnetizing chamber 13 and connected to the main body 10 of the equipment. The material guide 40 is located between the demagnetizing chamber 13 and the separation chamber 11 and connected to the main body 10 of the equipment. The material guide 40 is used to guide the material in the separation chamber 11 to the demagnetizing mechanism 50 so that the magnetic substances in the material can be separated by the demagnetizing mechanism 50.

[0063] In this embodiment, a demagnetizing cavity 13 is provided in the main body 10 of the device, and a demagnetizing mechanism 50 is disposed within the demagnetizing cavity 13. The demagnetizing mechanism 50 is used to separate and recover the magnetic material from the electrode sheets separated by the separation mechanism 20, thereby improving the recovery quality of the active material and current collector. Simultaneously, a guide member 40 is provided between the demagnetizing cavity 13 and the separation cavity 11 to guide the separated electrode sheets from the separation cavity 11 into the demagnetizing cavity 13. This provides a precise transport path for the separated electrode sheets in the separation cavity 11, improving the smoothness of the electrode sheet transport to the demagnetizing mechanism 50.

[0064] It should be noted that during the manufacturing process, magnetic metal impurities such as iron and nickel may be mixed into the battery electrodes, such as wear debris from production equipment or residues from the battery casing. If these impurities are mixed into the recycled active materials, they will reduce the purity of the active materials for secondary use, thereby affecting the electrochemical performance of the new battery. Therefore, the demagnetizing mechanism 50 is required to remove magnetic materials from the electrodes separated by the separation mechanism 20.

[0065] In some embodiments, such as Figures 6-8 As shown, the demagnetizing mechanism 50 includes a roller 51, a magnetic component 52, and a separating plate 53. The magnetic component 52 is fixedly connected to the main body 10 of the equipment. The roller 51 is sleeved on the outer periphery of the magnetic component 52 and is rotatably connected to the main body 10 of the equipment. The roller 51 can rotate relative to the magnetic component 52, and the magnetic component 52 is semi-cylindrical. The separating plate 53 is located on the side of the roller 51 away from the separating mechanism 20. The separating plate 53 is fixedly connected to the main body 10 of the equipment and is used to export the magnetic material separated from the roller 51.

[0066] In this embodiment, by placing the magnetic component 52 inside the roller 51, the magnetic component 52 is fixedly connected to the main body 10 of the equipment, and the roller 51 is rotatably connected to the main body 10 of the equipment. The magnetic component 52 is semi-cylindrical, which creates a strong magnetic area and a non-magnetic area inside the roller 51. The separation plate 53 is placed on the side of the roller 51 away from the separation mechanism 20, and the separation plate 53 is located in the non-magnetic area. In this way, the magnetic material separated from the roller 51 is discharged by the separation plate 53. This structure is compact, saves space, and is convenient for installation and maintenance.

[0067] Specifically, the demagnetizing mechanism 50 also includes a third gear, a chain, and a first motor. A rotating shaft is inserted through the roller 51 and is fixedly connected to the roller 51. The third gear is fixedly connected to the rotating shaft. The chain is rotatably connected to the third gear. The first motor is connected to the chain and is used to drive the third gear to rotate by driving the chain, thereby driving the roller 51 to rotate.

[0068] In some embodiments, such as Figure 1 and Figure 6 As shown, the guide member 40 extends recessedly from the separation chamber 11 to the demagnetizing chamber 13 to form a guide chamber. From the separation chamber 11 to the demagnetizing chamber 13, the flow cross-sectional area of ​​the guide chamber gradually decreases. The end of the guide member 40 away from the separation chamber 11 is provided with a discharge port 41 that communicates with the guide chamber. The discharge port 41 faces the roller 51.

[0069] In this embodiment, by setting a guide cavity in the guide member 40, the flow cross-sectional area of ​​the guide cavity is set to gradually decrease from the separation cavity 11 to the demagnetizing cavity 13, and the discharge port 41 of the guide member 40 is set towards the roller 51. This makes the discharge port 41 accurately face the surface of the roller 51, which not only allows the material to be evenly spread in the magnetic area of ​​the roller 51, but also prevents magnetic materials from falling into the non-magnetic area, thereby improving the demagnetizing effect of the demagnetizing mechanism 50.

[0070] In some embodiments, such as Figure 1 and Figure 9 As shown, the battery electrode powder removal device also includes a screening mechanism 60; the main body 10 of the equipment is also provided with a screening chamber 14, which is located on the side of the demagnetizing chamber 13 away from the separation chamber 11. The screening mechanism 60 is located in the screening chamber 14 and connected to the main body 10 of the equipment; the screening mechanism 60 includes a screen 61, a collection tray 62 and a vibrating element 63; the screen 61, the collection tray 62 and the vibrating element 63 are all connected to the main body 10 of the equipment. The screen 61 is located on the side of the demagnetizing mechanism 50 away from the separation mechanism 20, and the collection tray 62 is located on the side of the screen 61 away from the demagnetizing mechanism 50, for collecting the screened material; the vibrating element 63 is connected to the screen 61 and is used to vibrate the screen 61 to screen the material.

[0071] In this embodiment, by setting a screening chamber 14 in the main body 10 of the device and setting the screening mechanism 60 in the screening chamber 14, the screen 61 in the screening mechanism 60 can be used to screen the electrode sheets after demagnetization by the demagnetization mechanism 50. The active material in the electrode sheets falls from the screen holes of the screen 61 into the collection tray 62. At the same time, by connecting the vibrating element 63 to the screen 61, not only can the screening efficiency be improved, but also the screen holes of the screen 61 can be prevented from being blocked, thereby affecting the screening efficiency and screening effect of the screening mechanism 60.

[0072] Specifically, the screening mechanism 60 also includes a guide plate 64, a first receiving port 65, and a second receiving port 66. The guide plate 64 is located on the side of the screen 61 near the demagnetizing mechanism 50. The first receiving port 65 is connected to the screen 61, and the second receiving port 66 is connected to the collecting tray 62. The current collector in the screen 61 flows out and is collected from the first receiving port 65, and the active material in the collecting tray 62 flows out and is collected from the second receiving port 66. In addition, the vibrating component 63 includes a support column, a spring, a second motor, a fourth gear, a fifth connecting rod, and a sixth connecting rod. The second motor is connected to the fourth gear, one end of the fifth connecting rod is connected to the fourth gear, and the other end of the fifth connecting rod is connected to the sixth connecting rod, which is used to drive the fourth gear to rotate. The second motor drives the fourth gear to rotate, and the fourth gear drives the fifth connecting rod to make a circular motion, thereby driving the sixth connecting rod to move along the axial direction of the main body of the equipment, thereby causing the screen to vibrate. The spring is connected to the screen to play a buffering role.

[0073] In some embodiments, such as Figure 2 As shown, the battery electrode powder removal device also includes a flow guide 70; the flow guide 70 is located between the separation mechanism 20 and the feed inlet 12, and the outer surface of the flow guide 70 is conical.

[0074] In this embodiment of the application, by providing a guide 70 between the separation mechanism 20 and the feed inlet 12, and by setting the outer surface of the guide 70 as a conical surface, it is possible to prevent the material from accumulating at the feed inlet 12 and thus preventing it from entering the separation chamber 11. This eliminates the need for manual removal of the accumulated material, thereby providing convenience for the operator.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery electrode powder removal device, characterized in that, include: The equipment body (10), the separation mechanism (20), and the air sweeping mechanism (30); The main body (10) of the equipment is provided with a separation chamber (11), and the separation mechanism (20) is located in the separation chamber (11) and connected to the main body (10). The separation mechanism (20) can move in the separation chamber (11) to beat and separate the material entering the separation chamber (11). The main body (10) of the equipment is provided with a feed inlet (12) communicating with the separation chamber (11). The air sweeping mechanism (30) is located in the separation chamber (11) and on the side away from the feed inlet (12) of the separation mechanism (20). The air sweeping mechanism (30) is used to deliver airflow into the separation chamber (11) to slow down the falling of materials.

2. The battery electrode powder removal device according to claim 1, characterized in that, The separation mechanism (20) includes a drive component (21), a transmission assembly (22), and multiple tapping assemblies (23); The separation chamber (11) is provided with a mounting bracket (111), which is fixedly connected to the main body of the equipment (10). The driving component (21) is mounted on the mounting bracket (111). A plurality of the beating components (23) are arranged circumferentially around the mounting bracket (111) and the beating components (23) are movably connected to the mounting bracket (111). The driving component (21) is connected to the plurality of beating components (23) through the transmission component (22). The driving component (21) is used to drive the transmission component (22) to move, so as to drive the plurality of beating components (23) to swing back and forth to beat and separate the material.

3. The battery electrode powder removal device according to claim 2, characterized in that, The transmission assembly (22) includes a first gear (221), a plurality of second gears (222), and a plurality of swing assemblies (223); The first gear (221) is connected to the drive member (21), and a plurality of second gears (222) are arranged circumferentially around the first gear (221) at intervals, and the plurality of second gears (222) mesh with the first gear (221); the swing assembly (223) is drivenly connected to the second gears (222), each swing assembly (223) is slidably connected to one of the tapping assemblies (23), and the swing assembly (223) can slide back and forth relative to the tapping assembly (23) along the radial direction of the first gear (221) to drive the tapping assembly (23) to swing back and forth relative to the mounting bracket (111).

4. The battery electrode powder removal device according to claim 3, characterized in that, The swing assembly (223) includes a first link (2231), a second link (2232), a third link (2233), and a slider (2234); One end of the first connecting rod (2231) is rotatably connected to the mounting bracket (111), the second connecting rod (2232) is rotatably connected to the other end of the first connecting rod (2231), one end of the second connecting rod (2232) is fixedly connected to the second gear (222), the other end of the second connecting rod (2232) is fixedly connected to one end of the third connecting rod (2233), the other end of the third connecting rod (2233) is rotatably connected to the slider (2234), the slider (2234) is slidably connected to the tapping assembly (23), and the slider (2234) can slide relative to the tapping assembly (23) along the radial direction of the first gear (221).

5. The battery electrode powder removal device according to claim 1, characterized in that, The air sweeping mechanism (30) includes a fan (31) and an air supply duct (32); The air supply duct (32) is located inside the separation chamber (11) and on the side of the separation mechanism (20) away from the feed inlet (12). The air supply duct (32) is arranged around the cavity wall of the separation chamber (11). The air supply duct (32) is provided with multiple air outlets (321). The fan (31) is connected to the air supply duct (32) to deliver airflow to the multiple air outlets (321).

6. The battery electrode powder removal device according to claim 1, characterized in that, The battery electrode powder removal device also includes a material guide (40) and a demagnetizing mechanism (50); The main body (10) of the equipment is also provided with a demagnetizing chamber (13), which is located on the side of the separation chamber (11) away from the feed inlet (12). The demagnetizing mechanism (50) is located in the demagnetizing chamber (13) and connected to the main body (10). The guide (40) is located between the demagnetizing chamber (13) and the separation chamber (11) and connected to the main body (10). The guide (40) is used to guide the material in the separation chamber (11) to the demagnetizing mechanism (50) so as to separate the magnetic material in the material through the demagnetizing mechanism (50).

7. The battery electrode powder removal device according to claim 6, characterized in that, The demagnetizing mechanism (50) includes a roller (51), a magnetic component (52), and a separation plate (53); The magnetic component (52) is fixedly connected to the main body of the equipment (10), the roller (51) is sleeved on the outer periphery of the magnetic component (52), the roller (51) is rotatably connected to the main body of the equipment (10), the roller (51) can rotate relative to the magnetic component (52), and the magnetic component (52) is a semi-cylinder. The separation plate (53) is located on the side of the roller (51) away from the separation mechanism (20). The separation plate (53) is fixedly connected to the main body of the equipment (10) and is used to export the magnetic material separated from the roller (51).

8. The battery electrode powder removal device according to claim 7, characterized in that, The guide member (40) extends recessedly from the separation chamber (11) toward the demagnetizing chamber (13) to form a guide chamber. The flow cross-sectional area of ​​the guide chamber gradually decreases from the separation chamber (11) to the demagnetizing chamber (13). The end of the guide member (40) away from the separation chamber (11) is provided with a discharge port (41) communicating with the guide chamber. The discharge port (41) faces the roller (51).

9. The battery electrode powder removal device according to claim 6, characterized in that, The battery electrode powder removal device also includes a sieving mechanism (60); the main body of the equipment (10) is also provided with a sieving chamber (14), the sieving chamber (14) is located on the side of the demagnetizing chamber (13) away from the separation chamber (11), and the sieving mechanism (60) is located in the sieving chamber (14) and connected to the main body of the equipment (10); The screening mechanism (60) includes a screen (61), a collection tray (62), and a vibrating element (63); the screen (61), the collection tray (62), and the vibrating element (63) are all connected to the main body of the equipment (10). The screen (61) is located on the side of the demagnetizing mechanism (50) away from the separating mechanism (20), and the collection tray (62) is located on the side of the screen (61) away from the demagnetizing mechanism (50) for collecting the screened material; the vibrating element (63) is connected to the screen (61) for vibrating the screen (61) to screen the material.

10. The battery electrode powder removal device according to any one of claims 1-9, characterized in that, The battery electrode powder removal device also includes a flow guide (70); the flow guide (70) is located between the separation mechanism (20) and the feed inlet (12), and the outer surface of the flow guide (70) is conical.

Images