Power battery positive electrode material recovery device

Abstract

The utility model relates to the technical field of power battery material recovery, in particular to a power battery positive electrode material recovery device which comprises a box body, a heating assembly and a clamping assembly. The box body is provided with a top cover and a material outlet; the heating assembly is arranged in the box body to heat materials; the clamping assembly is arranged in the box body and comprises a first guide rail set, a mounting frame and a fixing clamp. More than two first guide rail groups are arranged in the box body along the Z-axis direction; the mounting frame is slidably mounted on the first guide rail group; the fixing clamp is arranged on the mounting frame and used for clamping materials, and the mounting frame reciprocates on the first guide rail set in the Z-axis direction to enable the fixing clamp and the materials to vibrate, so that the materials are dispersed and stripped. According to the technical scheme, the pole piece is heated through the heating assembly, and then the mounting frame reciprocates on the first guide rail assembly to generate vibration, so that the positive electrode material is thoroughly stripped from the pole piece, the stripping efficiency of the material is improved, and the recovery efficiency of the material is improved.

Description

Technical Field

[0001] The present application relates to the technical field of power battery material recycling, and in particular to a power battery positive electrode material recycling device. Background Art

[0002] Driven by the development of new energy vehicles, the demand for power batteries continues to increase. By 2025, global lithium battery market demand is expected to reach US$694.265 billion, with shipments reaching 439.32GWh. This is accompanied by a surge in retired power batteries reaching 134.49GWh, weighing 803,600 tons.

[0003] The main methods for recycling the positive and negative electrode materials of retired power batteries include: repair and regeneration, extraction and recovery, or separation and reprocessing. Repair and regeneration technology is to strip the positive electrode materials from the waste battery from the aluminum foil, etc., and then restore the physical and chemical indicators of the obtained positive electrode materials through a lithium replenishment process to achieve the purpose of repair and regeneration. Extraction and recovery is to extract and separate the valuable elements in the positive electrode active material with the highest recycling value, and then return them to the preparation of power battery materials. Separation and reprocessing is mainly for the negative electrode material. Whether it is repaired and regenerated, extracted and recovered, or separated and reprocessed, the battery materials contain harmful impurities such as metallic aluminum, copper and their compounds from the main body of the current collector. During the charge and discharge process, these harmful impurities will affect the cycle performance of the material. Therefore, the simple and efficient separation of the electrode substrate and its load material is a key issue in the recycling of waste power batteries.

[0004] However, the power battery recycling equipment in the existing technology still faces some significant problems: the battery electrodes are often stacked in a disordered manner in the recycling equipment, resulting in most of the peeled electrode powder still being mixed in the electrode matrix, making it difficult to effectively fall into the drainage system, affecting the recycling efficiency. Utility Model Content

[0005] The purpose of this application is to provide a power battery positive electrode material recovery device, which can improve the material recovery effect and efficiency.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the present application provides a power battery positive electrode material recovery device, comprising a box body, a heating assembly and a clamping assembly. The box body has a top cover and a material outlet; the heating assembly is arranged in the box body to heat the material; the clamping assembly is arranged in the box body, and the clamping assembly includes a first guide rail group, a mounting frame and a fixed clamp. The first guide rail group is provided with more than two in the box body along the Z-axis direction; the mounting frame is slidably mounted on the first guide rail group; at least one fixed clamp is provided on the mounting frame, and the fixed clamp is used to clamp the material. The mounting frame moves back and forth along the Z-axis direction on the first guide rail group to vibrate the fixed clamp and the material, thereby dispersing and peeling the material.

[0007] In one embodiment, the clamping assembly further includes a second guide rail group, the second guide rail group is arranged along the Y-axis direction, the first guide rail group is installed on the second guide rail group, and the first guide rail group can move along the Y-axis on the second guide rail group.

[0008] In one embodiment, the mounting frame includes a first rod body and a second rod body, the first rod body is slidably installed on the first guide rail group, and the number of the first rod bodies matches the number of the first guide rail group; at least two second rod bodies are arranged between two adjacent first rod bodies, the second rod bodies are slidably connected to the first rod bodies, and the fixing clamp is arranged on the second rod bodies; the power battery positive electrode material recovery device also includes a vibrator and a connecting rod, the vibrator is arranged on the inner wall of the box body; the connecting rod is capable of extension and contraction, the connecting rod connects the vibrator and the fixing clamp, and the vibrator drives the second rod body and the fixing clamp to vibrate back and forth along the direction of the first rod body through the connecting rod.

[0009] In one embodiment, the power battery positive electrode material recovery device also includes an isolation door, which is arranged in the box body to divide the internal space of the box body into a vibration chamber and a heating chamber, and the heating component is arranged in the heating chamber; the isolation door is opened, the first rod body slides on the first guide rail group and approaches the heating chamber, the movement of the first rod body drives the second rod body to approach the heating chamber, and the second rod body moves to drive the fixing clamp and the material into the heating chamber for heating; the isolation door is closed to isolate the heating component from the vibrator.

[0010] In one embodiment, the power battery positive electrode material recovery device also includes an air inlet pipe and an air outlet pipe, and the air inlet pipe and the air outlet pipe are arranged in the heating chamber on the box body. The air inlet pipe allows external air to enter the heating chamber, and the gas in the heating chamber is discharged through the air outlet pipe.

[0011] In one embodiment, the side wall of the box body close to the bottom is an arc-shaped inner wall, which covers part of the bottom inner wall of the box body and isolates it from the internal space of the box body, so that the bottom inner wall of the box body connected to the internal space of the box body forms a circular aggregate area with a diameter of R.

[0012] In one embodiment, the power battery positive electrode material recovery device also includes a crushing assembly, which is arranged at the bottom of the box body. The crushing assembly includes a drive motor, a crushing roller and a rotating shaft, and the drive motor is arranged outside the box body; an assembly hole is provided on the box body, and the axial direction of the assembly hole is parallel to the axial direction of the circular aggregate area. The assembly hole connects the outside world with the inner wall space of the box body, and the rotating shaft is passed through the assembly hole on the box body, and the rotating shaft is connected to the drive motor by transmission; the crushing roller is arranged in the circular aggregate area in the box body, the crushing roller is connected to the rotating shaft by transmission and the crushing roller is arranged perpendicular to the rotating shaft, and the drive motor drives the crushing roller to rotate through the rotating shaft to crush and grind the material.

[0013] In one embodiment, the axial length of the crushing roller is M, wherein 0.5R≤M≤R, and R is the radius of the circular aggregation area; and / or, the power battery positive electrode material recovery device further includes a stirring assembly, wherein the stirring assembly includes blades, and the blades are mounted on one end of the rotating shaft away from the circular aggregation area; and / or, the power battery positive electrode material recovery device further includes a tray, which is detachably mounted on the circular aggregation area at the bottom of the box.

[0014] In one embodiment, the cross-section of the material outlet is rectangular along a direction perpendicular to the length; the power battery positive electrode material recovery device also includes a baffle, a screen and a scraper, the baffle is installed at the material outlet, and the baffle can open or block the material outlet; the screen is installed at the material outlet; the scraper is arranged in the circular aggregation area, and the scraper is connected to the rotating shaft in a transmission manner, and the rotating shaft rotates to drive the scraper to rotate, and the rotation of the scraper can push the material to move toward the material outlet.

[0015] In one embodiment, the material outlet is arranged at the bottom wall of the circular aggregate area, and the material outlet is arranged along the radial direction of the circular aggregate area. The length of the material outlet is L, wherein 0.5R≤L≤R, and R is the radius of the circular aggregate area.

[0016] The technical solution of the present application heats the electrode sheet through a heating component, and then the mounting frame moves back and forth on at least the first guide rail component to generate vibration, so that the positive electrode material is completely peeled off from the electrode sheet, thereby improving the material peeling efficiency and thus improving the material recovery efficiency.

[0017] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic structural diagram from one perspective of one embodiment of a power battery positive electrode material recovery device provided in an embodiment of the present application;

[0020] Figure 2 A schematic structural diagram from two perspectives of one embodiment of a power battery positive electrode material recovery device provided in an embodiment of the present application;

[0021] Figure 3 This is a three-perspective structural schematic diagram of one embodiment of a power battery positive electrode material recovery device provided in an embodiment of the present application.

[0022] icon:

[0023] 100-box; 110-top cover; 120-material outlet; 130-arc inner wall; 140-circular gathering area; 150-vibration chamber; 160-heating chamber;

[0024] 200 - clamping assembly; 210 - first guide rail assembly; 220 - second guide rail assembly; 230 - mounting bracket; 232 - first rod; 234 - second rod; 240 - fixing clamp;

[0025] 300-crushing assembly; 320-rotating shaft; 330-crushing roller;

[0026] 400-heating component;

[0027] 510-vibrator; 520-connecting rod; 530-isolation door; 540-inlet pipe; 550-outlet pipe; 560-material; 570-observation window; 580-spare door. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0030] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0031] The embodiment of the present application provides a power battery positive electrode material recovery device, such as Figures 1 to 3 As shown, the power battery positive electrode material recovery device includes a box body 100, a heating component 400 and a clamping component 200.

[0032] like Figure 1 and Figure 3 As shown, the box body 100 has a top cover 110 and a material outlet 120; illustratively, an opening is provided on the top of the box body 100, and the top cover 110 is detachably installed at the opening of the box body 100. The top cover 110 can open or close the opening of the box body 100. When the opening is opened, the material 560 can enter the box body 100, and when the opening is closed, the box body 100 is isolated from the outside space.

[0033] like Figure 1 As shown, the heating component 400 is disposed in the box 100 to heat the material 560; illustratively, the heating component 400 includes but is not limited to: a resistance heater, an electromagnetic heater, an infrared heater, a gas heater, etc.

[0034] like Figure 1 and Figure 2As shown, the clamping assembly 200 is disposed in the box 100 , and the clamping assembly 200 includes a first guide rail set 210 , a mounting frame 230 and a fixing clamp 240 .

[0035] More than two first guide rail groups 210 are provided in the box body 100 along the Z-axis direction; for example, two guide rails are provided in the first guide rail group 210, and the two guide rails are provided on the inner wall of the box body 100 opposite to each other. Figure 1 As shown, two first guide rail groups 210 are provided, each of which includes two guide rails, i.e., a total of four guide rails. In another embodiment, four first guide rail groups 210 are provided, i.e., four first guide rail groups 210 include eight guide rails. The following uses two first guide rail groups 210 as an example to illustrate the technical solution of the present application.

[0036] The mounting frame 230 is slidably mounted on the first guide rail group 210; for example, a slider is slidably mounted on the guide rail of the first guide rail group 210, and the mounting frame 230 is mounted on the slider. The mounting frame 230 is slidably mounted on the guide rail of the first guide rail group 210 through the slider, so that the mounting frame 230 can reciprocate along the Z-axis direction on the first guide rail group 210. Figure 1 As shown, the mounting bracket 230 can be moved on the first guide rail set 210 to be close to the heating assembly 400 .

[0037] like Figure 1 As shown, the fixing clamp 240 is set on the mounting frame 230, and the mounting frame 230 reciprocates along the Z-axis direction on the first guide rail assembly 210 to drive the fixing clamp 240 to reciprocate along the Z-axis direction.

[0038] like Figure 1 As shown, the fixed clamp 240 is used to clamp the material 560. The fixed clamp 240 reciprocates along the Z axis, driving the material 560 to reciprocate along the Z axis, so that the material 560 approaches the heating assembly 400, and the heating assembly 400 heats the material 560. Exemplarily, the material 560 is a pole piece of a power battery, which contains a positive electrode material. Of course, the material 560 can also be other entities, such as the main material of a power battery. The technical solution of this application is described in detail below using the material 560 as a pole piece of a power battery as an example.

[0039] The technical solution of this application heats the electrode sheet through the heating assembly 400 to decompose organic matter such as the binder. The mounting frame 230 then reciprocates on the first guide rail assembly 210 to generate vibration, which completely strips the positive electrode material from the electrode sheet, improving the material stripping efficiency and thus the material recovery efficiency. The specific working process is as follows:

[0040] During use, the mounting frame 230 moves on the first guide rail group 210 close to the heating component 400. The movement of the mounting frame 230 drives the fixing clamp 240 and the material 560 to approach the heating component 400, and the heating component 400 is started. The heating component 400 heats the material 560. After the material 560 is heated, the mounting frame 230 moves on the first guide rail group 210 and away from the heating component 400. After the material 560 is away from the heating component 400, the mounting frame 230 moves back and forth along the Z-axis direction on the first guide rail group 210 with a small amplitude to form a vibration effect, causing the fixing clamp 240 and the material 560 to vibrate, so that the material 560 is decomposed by heat and the positive electrode material is dispersed and peeled off from the electrode sheet.

[0041] Of course, the application may be used in other ways as well.

[0042] For example, there are many forms of mechanical mechanisms for driving the mounting frame 230 and the slider to slide on the first guide rail group 210. For example, the slider is provided with a motor, the motor is provided with a gear, and the guide rails of the first guide rail group 210 are provided with a rack, which is arranged along the guide rail direction of the first guide rail group 210. The gear on the motor is engaged with the rack, and the motor and the gear move on the rack during rotation, thereby causing the slider and the mounting frame 230 to move along the first guide rail group 210, thereby driving the mounting frame 230 and the slider to move along the first guide rail group 210. Of course, there are many other forms of driving the mounting frame 230 and the slider to slide on the first guide rail group 210, such as through a telescopic rod mechanism, a chain mechanism, a threaded screw mechanism, etc.

[0043] like Figure 2 As shown, in one embodiment, the clamping assembly 200 also includes a second guide rail group 220, which is arranged along the Y-axis direction, and the first guide rail group 210 is installed on the second guide rail group 220, and the first guide rail group 210 can move along the Y-axis on the second guide rail group 220.

[0044] For example, Figure 2 As shown, each second guide rail assembly 220 includes two guide rails. Sliders are provided on the guide rails of the second guide rail assembly 220, and the guide rails of the first guide rail assembly 210 are mounted on the slides of the guide rails in the second guide rail assembly 220. The first guide rail assembly 210 is slidably mounted on the second guide rail assembly 220 via the slides, thereby enabling the first guide rail assembly 210 to reciprocate along the Y-axis on the second guide rail assembly 220. The reciprocating movement of the first guide rail assembly 210 along the Y-axis drives the mounting frame 230 to reciprocate along the Y-axis. The reciprocating movement of the mounting frame 230 along the Y-axis drives the fixing clamp 240 and the material 560 to reciprocate, thereby increasing the flexibility of handling the material 560, making it easier to install and remove the material 560 from the fixing clamp 240, and improving operational efficiency.

[0045] Furthermore, the first guide rail group 210 reciprocates along the Y-axis on the second guide rail group 220 , which can also cause the material 560 to vibrate along the Y-axis direction, thereby helping to more effectively peel the positive electrode material from the electrode sheet, thereby improving the recycling efficiency and quality.

[0046] By adding the second guide rail assembly 220, an additional dimension of movement is provided for the first guide rail assembly 210, thereby enriching the functionality of the clamping assembly 200. This multi-dimensional movement capability enables the clamping assembly 200 to adapt to a wider range of material 560 processing requirements, improving the practicality and adaptability of the mechanical structure.

[0047] For example, there are many mechanical structures for driving the first guide rail set 210 to slide on the second guide rail set 220, such as a telescopic rod mechanism, a gear rack mechanism, a chain mechanism or a screw thread mechanism.

[0048] like Figure 2 As shown, in one embodiment, the mounting bracket 230 includes a first rod 232 and a second rod 234 .

[0049] The first rod 232 is slidably mounted on the first guide rail assembly 210 . For example, the first rod 232 is slidably mounted on the first guide rail assembly 210 via a slider.

[0050] The number of first rods 232 matches the number of first guide rails 210. Figure 2 As shown, two first guide rail sets 210 are provided, and two first rod bodies 232 are provided.

[0051] like Figure 2 As shown, the first rod 232 is arranged along the X-axis direction.

[0052] At least two second rods 234 are disposed between two adjacent first rods 232 . The second rods 234 are slidably connected to the first rods 232 , so that the second rods 234 can slide back and forth on the first rods 232 along the X-axis direction.

[0053] At least one fixing clip 240 is provided on the second rod 234 ; illustratively, one, two, three, four or five fixing clips 240 may be provided.

[0054] The second rod 234 reciprocates along the X-axis direction, driving the fixing clamp 240 to reciprocate along the X-axis direction.

[0055] For example, Figure 2 As shown, the second rod 234 is arranged along the Y-axis direction.

[0056] Exemplarily, two second rods 234 are provided. In another embodiment, three second rods 234 are provided. In another embodiment, four second rods 234 are provided.

[0057] The power battery positive electrode material recovery device further includes a vibrator 510 and a connecting rod 520 .

[0058] The vibrator 510 is provided on the inner wall of the housing 100 .

[0059] The connecting rod 520 is hingedly connected to the vibrator 510 and the second rod body 234. The vibrator 510 drives the second rod body 234 to vibrate back and forth on the first rod body 232 (i.e., vibrate back and forth along the X-axis direction) through the connecting rod 520, thereby causing the fixing clamp 240 on the second rod body 234 to vibrate back and forth along the first rod body 232. The reciprocating vibration of the fixing clamp 240 drives the material 560 to vibrate.

[0060] At least one connecting rod 520 is provided. Exemplarily, one, two, three, four or five connecting rods 520 can be provided.

[0061] Exemplarily, the vibrator 510 includes a motor, a connecting disk is fixedly provided on the output shaft of the motor, the axis of the connecting disk and the axis of the motor are parallel to the Y-axis direction, the connecting rod 520 is hinged to the connecting disk, and the axis of the hinge point of the two is parallel to the output shaft of the motor and is not collinear.

[0062] In other embodiments, the vibrator 510 is driven electromagnetically. For example, the vibrator 510 has two coils, and the connecting rod 520 is connected to one of the coils. Currents in different directions are passed through the two coils so that the two coils attract or repel each other, so that the connecting rod 520 moves back and forth, thereby generating a vibration effect.

[0063] The connecting rod 520 is retractable. For example, the connecting rod 520 is retractable and the retracted length can be locked. The connecting rod 520 includes but is not limited to: a hydraulic retractable rod, a pneumatic retractable rod, an electric push rod, a threaded screw mechanism, etc.

[0064] like Figure 1 As shown, during use, the mounting frame 230 moves along the Z-axis on the first guide rail assembly 210 toward the heating assembly 400. During this process, the connecting rod 520 first shortens and then lengthens. After the mounting frame 230, the fixing clamp 240, and the material 560 approach the heating assembly 400, the heating assembly 400 heats the material 560. After the material 560 is heated, the mounting frame 230 moves away from the heating assembly 400 along the Z-axis on the first guide rail assembly 210. The connecting rod 520 first shortens and then lengthens. The vibration of the vibrator 510 drives the connecting rod 520 to vibrate. Figure 2 As shown, the connecting rod 520 vibrates and drives the fixing clamp 240 and the material 560 to vibrate back and forth along the X-axis direction through the second rod body 234. During the vibration process of the vibrator 510, the length of the connecting rod 520 is locked.

[0065] For example, Figure 2 As shown, the vibrators 510 are provided in two groups, each group including two vibrators 510, the vibrators 510 in the same group are arranged opposite to each other, and four connecting rods 520 are provided accordingly. In another embodiment, the vibrators 510 are provided in one group, each group including two vibrators 510, the vibrators 510 in the same group are arranged opposite to each other, and two connecting rods 520 are provided accordingly.

[0066] like Figure 1 As shown, in one embodiment, the power battery positive electrode material recovery device further includes an isolation door 530, which is disposed within the housing 100 to divide the interior space of the housing 100 into a vibration chamber 150 and a heating chamber 160. The heating assembly 400 is disposed in the heating chamber 160. The material 560 is vibrated and stripped in the vibration chamber 150. The isolation door 530 is closed to isolate the heating assembly 400 from the vibrator 510.

[0067] During use, the isolation door 530 is opened, the first rod 232 slides on the first guide rail group 210 and approaches the heating chamber 160, the first rod 232 moves to drive the second rod 234 into the heating chamber 160, the isolation door 530 is closed, the heating chamber 160 and the vibration chamber 150 are isolated to protect the vibrator 510 and other structures in the box body 100, and the second rod 234 moves to drive the fixing clamp 240 and the material 560 into the heating chamber 160 for heating. After the material 560 is heated, the heating component 400 is turned off, the isolation door 530 is opened, and the first rod 232 moves on the first guide rail assembly 210 and away from the heating component 400. The movement of the first rod 232 drives the second rod 234, the fixing clamp 240, and the material 560 on the fixing clamp 240 away from the heating component 400, so that the material 560 is separated from the heating chamber 160, and the isolation door 530 can be closed. Of course, since the heating component 400 has been turned off, the isolation door 530 can also be kept open at this time.

[0068] like Figure 1 and Figure 3 As shown, in one embodiment, the power battery positive electrode material recovery device also includes an air inlet pipe 540 and an air outlet pipe 550, which are connected to the heating chamber 160 on the box body 100. The air inlet pipe 540 allows external air to enter the heating chamber 160, and the gas in the heating chamber 160 is discharged through the air outlet pipe 550.

[0069] During use, when there is a requirement for heating the reaction atmosphere for the material 560 , the atmosphere in the box 100 can be controlled through the air inlet pipe 540 and the air outlet pipe 550 .

[0070] In another embodiment, the gas outlet pipe 550 is connected to an environmental protection device.

[0071] like Figure 1 As shown, in one embodiment, the side wall of the box body 100 close to the bottom is a curved inner wall 130, which covers part of the bottom inner wall of the box body 100 and isolates it from the internal space of the box body 100, so that the bottom inner wall of the box body 100 connected to the internal space of the box body 100 forms a circular aggregate area 140 with a diameter of R.

[0072] The arc-shaped inner wall 130 can collect the positive electrode materials peeled off from the electrode sheets into the circular collection area 140 , thereby facilitating centralized processing of the positive electrode materials.

[0073] like Figure 1 As shown, in one embodiment, the power battery positive electrode material recovery device further includes a crushing assembly 300, which is used to crush the positive electrode material in the circular aggregate area 140. The crushing assembly 300 is disposed at the bottom of the housing 100 and includes a drive motor, a rotating shaft 320, and a crushing roller 330.

[0074] The driving motor is arranged outside the box body 100 to prevent the heating component 400 from burning the driving motor.

[0075] An assembly hole is provided on the box body 100, and the axial direction of the assembly hole is parallel to the axial direction of the circular aggregate area 140. The assembly hole connects the outside world with the inner wall space of the box body 100. The rotating shaft 320 is passed through the assembly hole on the box body 100. The rotating shaft 320 is connected to the drive motor, and the power of the drive motor can be transmitted to the box body 100 through the rotating shaft 320.

[0076] The crushing roller 330 is positioned within the circular material collection area 140 within the housing 100. The crushing roller 330 is in driving connection with the rotating shaft 320 and is positioned perpendicular to the rotating shaft 320. A drive motor drives the crushing roller 330 via the rotating shaft 320 to rotate and crush and grind the material 560. During the crushing and grinding process, the heating assembly 400 can be turned on to heat the material 560 or turned off. This can be determined based on actual operating conditions.

[0077] like Figure 1 As shown, in one embodiment, the axial length of the crushing roller 330 is M, where 0.5R≤M≤R, where R is the radius of the circular material collection area 140. If M>R, the arc-shaped inner wall 130 will interfere with the normal rotation of the crushing roller 330. If M<0.5R, the length of the crushing roller 330 is too small, and the crushing roller 330 may not fully cover the circular material collection area 140, resulting in low crushing efficiency.

[0078] Illustratively, M = 0.5R. In another embodiment, M = 0.6R. In another embodiment, M = 0.8R. In another embodiment, M = 0.9R. In another embodiment, M = 0.95R. In another embodiment, M = R.

[0079] In one embodiment, the power battery positive electrode material recovery device further includes a stirring assembly comprising blades mounted on the end of the rotating shaft 320 away from the circular material collection area 140; the blades are used to stir the positive electrode material within the circular material collection area 140. In another embodiment, the stirring assembly further includes an annular member that is snap-fitted onto the rotating shaft 320, and the blades are mounted on the annular member. Rotation of the rotating shaft 320 drives the annular member, which in turn drives the blades to stir the positive electrode material.

[0080] like Figure 1 As shown, in one embodiment, the power battery positive electrode material recovery device further includes a tray, which is detachably mounted on the circular material collection area 140 at the bottom of the housing 100. After the positive electrode material is peeled off from the electrode sheet, it falls onto the tray in the circular material collection area 140. The crushing roller 330 can crush and grind the positive electrode material on the tray, and the tray can be used to conveniently remove the positive electrode material.

[0081] In one embodiment, the cross section of the material outlet 120 along the direction perpendicular to the length direction is rectangular.

[0082] The power battery positive electrode material recovery device also includes a baffle, a screen and a scraper.

[0083] The baffle is installed at the material outlet 120 , and the baffle can open or block the material outlet 120 .

[0084] The screen is installed at the material outlet 120 , and the screen can stop the positive electrode material with a particle size larger than the filter hole in the box 100 , and the positive electrode material with a particle size less than or equal to the particle size can pass through the screen and be discharged through the material outlet 120 .

[0085] The scraper is disposed in the circular material collection area 140 and is in transmission connection with the rotating shaft 320 . The rotating shaft 320 rotates to drive the scraper to rotate. The rotation of the scraper can push the material 560 to move toward the material outlet 120 .

[0086] In one embodiment, the material outlet 120 is arranged at the bottom wall of the circular aggregate area 140 , and the material outlet 120 is arranged along the radial direction of the circular aggregate area 140 , and the length of the material outlet 120 is L, wherein 0.5R≤L≤R, and R is the radius of the circular aggregate area 140 .

[0087] If L<0.5R, the discharge efficiency of the material outlet 120 is reduced. If L>R, a considerable portion of the material 560 will flow into the material outlet 120 , which will affect the grinding and crushing effect of the crushing roller 330 .

[0088] For example, L = 0.5R. In another embodiment, L = 0.6R. In another embodiment, L = 0.8R. In another embodiment, L = 0.9R. In another embodiment, L = R.

[0089] In one embodiment, an observation window 570 is provided on the box body 100 , through which the working conditions inside the box body 100 can be observed from the outside.

[0090] In one embodiment, a spare door 580 is provided on the box body 100 , through which the materials 560 and components in the box body 100 can be adjusted and processed according to working conditions.

[0091] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0092] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A power battery positive electrode material recovery device, characterized in that: include: A box body (100), wherein the box body (100) has a top cover (110) and a material outlet (120); A heating component (400), the heating component (400) is disposed in the box (100) to heat the material (560); A clamping assembly (200), the clamping assembly (200) is arranged in the box (100), and the clamping assembly (200) comprises: a first guide rail group (210), wherein two or more first guide rail groups (210) are provided in the box (100) along the Z-axis direction; a mounting frame (230), the mounting frame (230) being slidably mounted on the first guide rail set (210); A fixing clamp (240), at least one fixing clamp (240) is provided on the mounting frame (230), the fixing clamp (240) is used to clamp the material (560), and the mounting frame (230) reciprocates along the Z-axis direction on the first guide rail group (210) to vibrate the fixing clamp (240) and the material (560), thereby causing the material (560) to be dispersed and peeled.

2. The power battery positive electrode material recovery device according to claim 1, characterized in that: The clamping assembly (200) further comprises: A second guide rail group (220), wherein the second guide rail group (220) is arranged along the Y-axis direction, the first guide rail group (210) is installed on the second guide rail group (220), and the first guide rail group (210) can move along the Y-axis on the second guide rail group (220).

3. The power battery positive electrode material recovery device according to claim 1, characterized in that: The mounting frame (230) includes: A first rod (232), the first rod (232) being slidably mounted on the first guide rail assembly (210), the number of the first rods (232) being matched with the number of the first guide rail assembly (210); a second rod body (234), at least two second rod bodies (234) are provided between two adjacent first rod bodies (232), the second rod bodies (234) are slidably connected to the first rod bodies (232), and the fixing clip (240) is provided on the second rod body (234); The power battery positive electrode material recovery device further includes: a vibrator (510), the vibrator (510) being arranged on the inner wall of the box (100); A connecting rod (520) is capable of being extended and retracted, and the connecting rod (520) connects the vibrator (510) and the second rod body (234). The vibrator (510) drives the second rod body (234) and the fixing clamp (240) to vibrate back and forth along the direction of the first rod body (232) through the connecting rod (520). At least one connecting rod (520) is provided.

4. The power battery positive electrode material recovery device according to claim 3, characterized in that: Also includes: an isolation door (530), the isolation door (530) being arranged in the box (100) to divide the internal space of the box (100) into a vibration chamber (150) and a heating chamber (160), the heating assembly (400) being arranged in the heating chamber (160); The isolation door (530) is opened, the first rod (232) slides on the first guide rail assembly (210) and approaches the heating chamber (160), the first rod (232) moves to drive the second rod (234) to approach the heating chamber (160), and the second rod (234) moves to drive the fixing clamp (240) and the material (560) to enter the heating chamber (160) for heating; The isolation door (530) is closed to isolate the heating assembly (400) from the vibrator (510).

5. The power battery positive electrode material recovery device according to claim 4, characterized in that: The power battery positive electrode material recovery device further comprises an air inlet pipe (540) and an air outlet pipe (550), wherein the air inlet pipe (540) and the air outlet pipe (550) are arranged in the heating chamber (160) on the box (100), the air inlet pipe (540) allows external air to pass into the heating chamber (160), and the gas in the heating chamber (160) is discharged through the air outlet pipe (550).

6. The power battery positive electrode material recovery device according to claim 1, characterized in that: The side wall of the box body (100) close to the bottom is an arc-shaped inner wall (130), and the arc-shaped inner wall (130) covers part of the bottom inner wall of the box body (100) and isolates it from the internal space of the box body (100), so that the bottom inner wall of the box body (100) connected to the internal space of the box body (100) forms a circular aggregate area (140) with a diameter of R.

7. The power battery positive electrode material recovery device according to claim 6, characterized in that: Also includes: A crushing assembly (300), the crushing assembly (300) is arranged at the bottom of the box (100), and the crushing assembly (300) includes: a driving motor, the driving motor being arranged outside the box (100); A rotating shaft (320), an assembly hole is provided on the box body (100), the axis direction of the assembly hole is parallel to the axis direction of the circular material collection area (140), the assembly hole connects the outside with the inner wall space of the box body (100), the rotating shaft (320) is passed through the assembly hole on the box body (100), and the rotating shaft (320) is in transmission connection with the drive motor; A crushing roller (330), the crushing roller (330) is arranged in the circular gathering area (140) in the box (100), the crushing roller (330) is in transmission connection with the rotating shaft (320) and the crushing roller (330) is arranged perpendicular to the rotating shaft (320), and the driving motor drives the crushing roller (330) to rotate through the rotating shaft (320) to crush and grind the material (560).

8. The power battery positive electrode material recovery device according to claim 7, characterized in that: The axial length of the crushing roller (330) is M, wherein 0.5R≤M≤R, and R is the radius of the circular aggregate area (140); And / or, the power battery positive electrode material recovery device further comprises a stirring assembly, wherein the stirring assembly comprises blades, and the blades are mounted on an end of the rotating shaft (320) away from the circular material collection area (140); And / or, the power battery positive electrode material recovery device further comprises a tray, and the tray is detachably mounted on the circular aggregate area (140) at the bottom of the box (100).

9. The power battery positive electrode material recovery device according to claim 7, characterized in that: The material outlet (120) has a rectangular cross section perpendicular to the length direction; The power battery positive electrode material recovery device further includes: a baffle, the baffle being installed at the material outlet (120), the baffle being capable of opening or blocking the material outlet (120); a screen installed at the material outlet (120); A scraper is provided in the circular material collection area (140), the scraper is in transmission connection with the rotating shaft (320), the rotating shaft (320) rotates to drive the scraper to rotate, and the rotation of the scraper can push the material (560) to move toward the material outlet (120).

10. The power battery positive electrode material recovery device according to claim 9, characterized in that: The material outlet (120) is arranged at the bottom wall of the circular aggregate area (140), and the material outlet (120) is arranged along the radial direction of the circular aggregate area (140). The length of the material outlet (120) is L, wherein 0.5R≤L≤R, and R is the radius of the circular aggregate area (140).

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