A pulse desorption assembly based on DRT and a device for high-voltage pulse separation of battery electrodes.

Abstract

A pulse desorption assembly based on DRT and a device for high-voltage pulse separation of battery electrodes are disclosed. The pulse desorption assembly includes a roller (1), a positive electrode plate (2), a negative electrode plate (3), and an adsorption plate (4). The positive electrode plate (2), the negative electrode plate (3), and the adsorption plate (4) are arranged around the periphery of the roller (1). The positive electrode plate (2) and the negative electrode plate (3) are spaced apart. Both the positive electrode plate (2) and the negative electrode plate (3) are connected to a pulse power supply. The adsorption plate (4) is provided with a plurality of adsorption holes (41) for adsorbing battery electrodes (5). By rotating the roller (1), the battery electrodes (5) can be wound around the periphery of the pulse desorption assembly, and the positive electrode plate (2) and the negative electrode plate (3) can be made to abut against the battery electrodes (5).

Description

Technical Field

[0001] This application relates to the field of battery recycling technology, such as a pulse desorption assembly based on DRT and a device for high-voltage pulse separation of battery electrodes. Background Technology

[0002] Lithium-ion batteries are widely used in electric vehicles, communication, and energy storage, and are currently experiencing rapid development. The main components of a lithium-ion battery are the positive and negative electrodes. The positive electrode includes a positive current collector and active material coated on the current collector. This active material contains rare elements such as lithium, cobalt, and nickel. To conserve mineral resources, retired lithium-ion batteries are typically recycled, especially the rare elements in the active material. One recycling method involves connecting a pulse discharge device to the positive electrode. Pulse discharge is applied to the positive electrode to detach the active material from the current collector. The pulse discharge device includes a water tank and positive and negative electrodes installed within the tank. The positive and negative electrodes are clamped to both ends of the positive electrode to establish a conductive circuit. The water tank contains water, suspending the active material detached from the positive electrode for collection.

[0003] The related technology has the following shortcomings: Due to the extremely thin thickness of the positive electrode, the surfaces of the positive and negative electrodes used to clamp the positive electrode securely require a high degree of smoothness. In actual use, tiny gaps can easily form between the two clamping blocks of the electrode due to manufacturing precision issues and wear, leading to arc discharge and pitting, which affects the stability of the clamping of the positive electrode. Furthermore, during use, problems such as thermal deformation, wear, and pitting can also cause poor contact between the positive electrode and the electrode, affecting the conductivity of the electrode and shortening its lifespan. Summary of the Invention

[0004] This application provides a pulse desorption component based on DRT, which has good conductivity and long service life.

[0005] This application provides a device for separating battery electrodes using high-voltage pulses, which has a good separation effect on battery electrodes and high production efficiency.

[0006] The following technical solution is adopted in this application:

[0007] A pulse desorption assembly based on DRT is provided, comprising a roller, a positive electrode plate, a negative electrode plate, and an adsorption plate. The positive electrode plate, the negative electrode plate, and the adsorption plate are arranged around the periphery of the roller, with the positive electrode plate and the negative electrode plate spaced apart. Both the positive electrode plate and the negative electrode plate are connected to a pulse power supply. The adsorption plate is provided with a plurality of adsorption holes for adsorbing battery electrodes. By rotating the roller, the battery electrodes can be wound around the periphery of the pulse desorption assembly, and the positive electrode plate and the negative electrode plate can be brought into contact with the battery electrodes.

[0008] In one or more embodiments, there are multiple positive and negative electrode plates, which are staggered along the circumferential direction of the roller.

[0009] In one or more embodiments, an adsorption plate is disposed between adjacent positive and negative electrode plates along the circumferential direction of the roller.

[0010] In one or more embodiments, an air pump is further included. The adsorption plate has a receiving cavity, and an air extraction hole is formed on the adsorption plate. Both the air extraction hole and the adsorption hole are connected to the receiving cavity. The adsorption hole is located on the side of the adsorption plate away from the roller, and the air extraction hole is located on the side of the adsorption plate facing the roller.

[0011] In one or more embodiments, the receiving cavity is provided with a plurality of partitions at intervals, the partitions dividing the receiving cavity into a plurality of sub-chambers, and each sub-chamber has an air extraction hole on its cavity wall.

[0012] A device for separating battery electrodes by high-voltage pulse is also provided, including a rotating bracket, a water tank, and a pulse desorption assembly. The rotating bracket is rotatably disposed above the water tank, and the pulse desorption assembly is mounted on the rotating bracket. The rotating bracket is capable of carrying the pulse desorption assembly to rotate around the center of the rotating bracket, so that the pulse desorption assembly can be selectively immersed in the water in the water tank.

[0013] In one or more embodiments, the rotating bracket includes a rotating base and a plurality of support members. Along the circumferential direction of the rotating base, the plurality of support members are evenly spaced around the periphery of the rotating base. The rotating base is used to drive the support members to rotate. Each support member is provided with the pulse desorption component at one end away from the rotating base.

[0014] In one or more embodiments, a separation station, a discharge station, a detection station, and a loading station are sequentially distributed along the rotation direction of the pulse desorption assembly. The water tank is located at the separation station. The discharge station is equipped with a recycling tank for collecting battery electrodes detached from the pulse desorption assembly. The detection station is equipped with a detection component for detecting whether the pulse desorption assembly has the battery electrodes. The loading station is equipped with a conveyor belt for transporting the battery electrodes.

[0015] In one or more embodiments, the support is provided with a driving component, the driving component is connected to the corresponding pulse desorption component, and the driving component is used to drive the pulse desorption component to move closer to or away from the rotating base.

[0016] This application arranges a positive electrode plate, a negative electrode plate, and an adsorption plate around the periphery of a roller, using adsorption to wind the battery electrode sheets onto a pulse desorption assembly. The positive and negative electrode plates establish a circuit connection between the battery electrode sheets and the pulse power supply. Compared to related technologies that fix the battery electrode sheets using clamping methods, this structure avoids pitting on the surfaces of the positive and negative electrode plates due to arc discharge, thus extending their service life. During operation, the battery electrode sheets are stably adsorbed onto the pulse desorption assembly, ensuring the reliability of the current loop between the battery electrode sheets and the pulse power supply. Because the battery electrode sheets are wound around the periphery of the pulse desorption assembly, the contact area between the battery electrode sheets and the positive and negative electrode plates is large, which improves the conductivity of the pulse desorption assembly and ensures effective separation of the active material from the battery electrode sheets. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a DRT-based pulse desorption component according to an embodiment of this application;

[0018] Figure 2 This is a side view of the DRT-based pulse desorption component according to an embodiment of this application;

[0019] Figure 3 This is a cross-sectional view of the adsorption plate according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of a high-voltage pulse separation device for battery electrodes according to an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the pulse desorption component adsorbing battery electrodes according to an embodiment of this application.

[0022] In the picture:

[0023] 1. Roller; 2. Positive electrode plate; 3. Negative electrode plate; 4. Adsorption plate; 40. Receiving cavity; 41. Adsorption hole; 42. Air extraction hole; 43. Control valve; 44. Waterproof and breathable membrane; 45. Separator; 5. Battery electrode; 6. Rotating bracket; 61. Rotating base; 62. Support component; 63. Drive assembly; 7. Water tank; 8. Detection assembly; 9. Conveyor belt; 10. Recycling tank;

[0024] 100. Separation station; 200. Unloading station; 300. Inspection station; 400. Loading station. Detailed Implementation

[0025] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1 and Figure 2 As shown, this application provides a pulse desorption assembly based on DRT (Digital Transmission Therapy), used in a device for high-voltage pulse separation of battery electrodes. The DRT-based pulse desorption assembly includes a roller 1, a positive electrode plate 2, a negative electrode plate 3, and an adsorption plate 4. The positive electrode plate 2, negative electrode plate 3, and adsorption plate 4 are arranged around the periphery of the roller 1, giving the entire pulse desorption assembly a cylindrical structure. The positive electrode plate 2 and negative electrode plate 3 are spaced apart along the circumference of the roller 1, and both are connected to a pulse power source. The adsorption plate 4 has multiple adsorption holes 41, through which air is drawn in, allowing the battery electrodes 5 to be adsorbed onto the adsorption plate 4. During operation, rotating the roller 1 drives the entire pulse desorption assembly to rotate, and under the adsorption action of the adsorption plate 4, the battery electrodes 5 are wound around the periphery of the pulse desorption assembly. When the battery electrode 5 is wound onto the pulse desorption assembly, the positive plate 2 and the negative plate 3 come into contact with the battery electrode 5 to establish a circuit connection between the battery electrode 5 and the pulse power supply. DRT (Directional Recycling Technology) is a technology based on reverse product positioning design. Through short-range recycling processes, it recycles failed materials from retired products back into usable materials for future product manufacturing. In the field of power batteries, directional recycling refers to the process of restoring used batteries through pretreatment, hydrometallurgical processes, etc., to produce materials needed for manufacturing power batteries. Manufacturers can directly use the processed battery raw materials to manufacture high-quality power batteries.

[0027] It is understood that the high-voltage pulse separation device is used to recycle the active material of the battery electrode 5. The main components within a lithium battery are the positive electrode and the negative electrode, collectively referred to as battery electrode 5. In this embodiment, the object of recycling is the positive electrode. The positive electrode includes a positive current collector, active material, and binder, etc. The positive current collector is made of aluminum foil, and the active material is attached to the surface of the positive current collector by the binder. During recycling, a high-current pulse flows through the positive electrode, causing the binder to melt at high temperature, thereby separating the active material from the positive current collector, achieving the separate recycling of the active material and the positive current collector. For ease of description, both the positive current collector with and without active material are referred to as battery electrode 5.

[0028] Positive plate 2 and negative plate 3 serve to conduct the circuit. They are made of copper plates with good conductivity and heat resistance, and are connected to a pulse power supply via high-voltage cables. The pulse power supply is formed using a capacitor bank circuit; during operation, it uses the energy stored in the capacitors to discharge the battery electrode 5. The voltage of the pulse power supply is selected to be 20KV-30KV. Under the action of the pulse current, the battery electrode 5 is heated, and the adhesive decomposes, allowing the active material to separate from the positive current collector. In practical applications, the voltage value of the pulse power supply can be reasonably selected according to the heat resistance characteristics of the battery electrode 5. While ensuring the separation of the active material, it is also necessary to avoid the positive current collector from overheating and melting.

[0029] Optionally, there are multiple positive electrode plates 2 and negative electrode plates 3, which are staggered along the circumference of the roller 1. That is, there is one negative electrode plate 3 between two adjacent positive electrode plates 2, or one positive electrode plate 2 between two adjacent negative electrode plates 3. In this embodiment, there are two positive electrode plates 2 and two negative electrode plates 3. The two positive electrode plates 2 are located on opposite sides of the roller 1, and the two negative electrode plates 3 are located on opposite sides of the roller 1. The line connecting the two positive electrode plates 2 is perpendicular to the line connecting the two negative electrode plates 3. Along the circumference of the roller 1, an adsorption plate 4 is provided between adjacent positive electrode plates 2 and negative electrode plates 3. Correspondingly, there are four adsorption plates 4, and adjacent positive electrode plates 2 and negative electrode plates 3 are separated by adsorption plates 4. This structure allows multiple positions in the circumferential direction of the pulse desorption assembly to adsorb and fix the battery electrode 5, preventing abnormal detachment of the battery electrode 5 from the pulse desorption assembly. Meanwhile, multiple positive plates 2 and negative plates 3 are distributed circumferentially in the pulse desorption assembly, enabling electrical connections at multiple locations on the battery electrode 5, reducing the risk of abnormal disconnection between the battery electrode 5 and the pulse power supply. Furthermore, since adsorption plates 4 are distributed on both sides of the positive plate 2 or negative plate 3, when two adjacent adsorption plates 4 adhere to the battery electrode 5, the area on the battery electrode 5 located between the two adjacent adsorption plates 4 can be tightly attached to the positive plate 2 or negative plate 3, ensuring circuit continuity.

[0030] Reference Figure 3 As shown, the pulse desorption assembly also includes an air pump, which is used to evacuate and inflate the adsorption plate 4. The adsorption plate 4 has a receiving cavity 40, and an adsorption hole 41 is located on the side of the adsorption plate 4 facing away from the roller 1, and the adsorption hole 41 communicates with the receiving cavity 40. An air extraction hole 42 is also provided on the adsorption plate 4, located on the side of the adsorption plate 4 facing the roller 1, and the air extraction hole 42 communicates with the receiving cavity 40. A control valve 43 is provided at the end of the air extraction hole 42 facing away from the receiving cavity 40, and the control valve 43 is connected to the air pump via an air pipe. The control valve 43 is used to control the flow of air in the air extraction hole 42. When it is necessary to adsorb the battery electrode 5, the air pump draws air to create a negative pressure inside the receiving cavity 40. Conversely, by inflating the receiving cavity 40 with air by the air pump, a positive pressure is created inside the receiving cavity 40, allowing the battery electrode 5 to detach from the pulse desorption assembly.

[0031] Optionally, the receiving cavity 40 is provided with multiple partitions 45 at intervals, dividing the receiving cavity 40 into multiple sub-chambers. In this embodiment, the receiving cavity 40 is provided with three partitions 45, which divide the receiving cavity 40 into four sub-chambers. Each sub-chamber has an air extraction hole 42 on its cavity wall, so that the air pressure in each sub-chamber can be controlled independently. Each sub-chamber is connected to a portion of the adsorption holes 41. It can be understood that when the pulse desorption assembly is submerged in water, water will enter the corresponding sub-chamber from the adsorption holes 41 that are not covered by the battery electrode 5. The sub-chambers completely covered by the battery electrode 5 cannot enter water, thus ensuring that at least a portion of the adsorption holes 41 have an adsorption effect on the battery electrode 5. At the same time, the sub-chambers can also serve as temporary water storage, preventing water entering from the adsorption holes 41 from flowing to the air pump. When the pulse desorption assembly moves above the water surface, the air pump inflates the sub-chambers, so that the water in the sub-chambers is discharged through the adsorption holes 41.

[0032] Optionally, a waterproof and breathable membrane 44 is provided on the cavity wall of the receiving cavity 40, which seals the adsorption holes 41. By providing the waterproof and breathable membrane 44, water can be prevented from entering the receiving cavity 40 through the adsorption holes 41 when the pulse desorption component is submerged in water.

[0033] In this embodiment, the positive electrode plate 2, negative electrode plate 3, and adsorption plate 4 are arranged around the periphery of the roller 1. The battery electrode 5 is wound onto the pulse desorption assembly using adsorption, and the positive electrode plate 2 and negative electrode plate 3 establish a circuit connection between the battery electrode 5 and the pulse power supply. Compared to related technologies that fix the battery electrode 5 by clamping, this structure avoids pitting on the surfaces of the positive electrode plate 2 and negative electrode plate 3 due to arc discharge, thus extending service life. During operation, the battery electrode 5 is stably adsorbed onto the pulse desorption assembly, ensuring the reliability of the current loop between the battery electrode 5 and the pulse power supply. Because the battery electrode 5 is wound around the periphery of the pulse desorption assembly, the contact area between the battery electrode 5 and the positive electrode plate 2 and negative electrode plate 3 is large, which improves the conductivity of the pulse desorption assembly and ensures effective separation of the active material on the battery electrode.

[0034] Reference Figure 4 As shown, a high-voltage pulse separation device for battery electrodes is also provided, used to detach active material from battery electrodes 5 to achieve recovery of the active material. The high-voltage pulse separation device for battery electrodes includes a rotating support 6, a water tank 7, and a pulse desorption assembly. The water tank 7 contains water and is used to collect the active material. The rotating support 6 is rotatably positioned above the water tank 7, and the pulse desorption assembly is mounted on the rotating support 6, which drives the pulse desorption assembly to rotate. By rotating the rotating support 6, the pulse desorption assembly can be selectively immersed in the water in the water tank 7. That is, when the pulse desorption assembly rotates to its lowest position, it is located in the water tank 7. When the pulse desorption assembly is immersed in the water, it pulses discharge onto the battery electrodes 5 to detach the active material from the positive electrode current collector. The detached active material is suspended in the water for collection. When the active material content in the water reaches a set level, the water can be filtered to obtain the active material. Understandably, by driving the pulse desorption assembly to rotate along the circumference of the rotating support 6, the pulse desorption assembly can be kept in motion in the water. The disturbance of the water promotes the detachment of active material from the battery electrode 5 into the water. Simultaneously, the pulse desorption assembly can alternately be positioned below and above the water surface to perform pulse discharge and replacement of the battery electrode 5. This structure improves the continuity of the battery electrode 5 separation process, thereby increasing production efficiency.

[0035] Optionally, the rotating support 6 includes a rotating base 61 and multiple support members 62. The multiple support members 62 are evenly spaced around the circumference of the rotating base 61. The rotating base 61 is connected to a drive unit so that the drive unit can drive the rotating base 61 to rotate about its own axis. The drive unit can be a drive mechanism consisting of a motor and belt, a motor and chain, or a motor and gears. The rotation of the rotating base 61 drives the support members 62 to rotate along the circumference of the rotating base 61. Each support member 62 has a pulse desorption assembly at its end opposite to the rotating base 61.

[0036] Optionally, Figure 4 The arrows indicate the rotation direction of the rotating support 6, which drives the pulse desorption assembly to rotate clockwise. Separation station 100, unloading station 200, detection station 300, and loading station 400 are sequentially distributed along the rotation direction of the pulse desorption assembly. At separation station 100, the pulse desorption assembly performs pulse discharge to separate the active material from the battery electrode 5. At unloading station 200, the pulse desorption assembly unloads the positive electrode current collector after separation, detaching it from the pulse desorption assembly. At detection station 300, the pulse desorption assembly is detected. Detection station 300 is equipped with a detection component 8, which can be a CCD camera. The detection component 8 takes pictures of the pulse desorption assembly and performs image processing to detect whether the battery electrode 5 is present on the pulse desorption assembly. For example, if the battery electrode 5 fails to be unloaded at unloading station 200, the detection component 8 can detect the presence of the battery electrode 5 on the pulse desorption assembly, allowing for appropriate processing of the failed unloading. Specifically, the separation station 100 and the inspection station 300 are distributed vertically at intervals, with the inspection station 300 located above the separation station 100. The unloading station 200 and the loading station 400 are distributed horizontally at intervals, with the unloading station 200 located downstream of the separation station 100 and the loading station 400 located upstream of the separation station 100.

[0037] In an optional embodiment, there are four support members 62, which are evenly distributed around the periphery of the rotating base 61, i.e., adjacent support members 62 are perpendicular to each other. This structure allows the four support members 62 to correspond one-to-one with the four workstations, i.e., the four support members 62 can simultaneously move to the separation workstation 100, the unloading workstation 200, the inspection workstation 300, and the loading workstation 400, respectively. This structure makes the connection between the four processes of pulse discharge of battery electrode 5, recycling of processed battery electrode 5, inspection of battery electrode 5, and loading of unprocessed battery electrode 5 more compact, further improving production efficiency.

[0038] The unloading station 200 is equipped with a recycling tank 10, which is used to collect the battery electrode sheets 5 that have detached from the pulse desorption assembly. When the pulse desorption assembly rotates to the unloading station 200, the air pump fills the receiving cavity 40 with air, and the gas flows backward through the adsorption holes 41, so that the processed battery electrode sheets 5 detach from the pulse desorption assembly. The detached battery electrode sheets 5 are collected through the recycling tank 10.

[0039] The loading station 400 is equipped with a conveyor belt 9, which is used to transport the battery electrode sheets 5 to be processed to the loading station 400. When the pulse desorption assembly rotates to the loading station 400, the pulse desorption assembly picks up the battery electrode sheets 5 from the conveyor belt 9 to realize the loading.

[0040] Reference Figure 5 As shown, the battery electrode 5 is cut to a suitable length and transported to the loading station 400 via the conveyor belt 9. The length of the battery electrode 5 matches the circumference of the motor assembly. When the pulse desorption assembly moves to the loading station 400, it comes into contact with the conveyor belt 9, and under the adsorption of the adsorption plate 4, the battery electrode 5 is adsorbed onto the periphery of the pulse desorption assembly. In practical applications, a separate drive unit can be set to drive the pulse desorption assembly to rotate, or the movement of the conveyor belt 9 can drive the pulse desorption assembly to rotate synchronously, so that the battery electrode 5 can be wound around the pulse desorption assembly.

[0041] Specifically, a drive assembly 63 is provided on the support member 62. The drive assembly 63 can be a cylinder, hydraulic cylinder, or electric telescopic component, etc. The drive assembly 63 is connected to the corresponding pulse desorption assembly, so that the drive assembly 63 drives the pulse desorption assembly to move closer to or away from the rotating base 61. That is, the drive assembly 63 can drive the pulse desorption assembly to move along the length direction of the support member 62. During the rotation of the rotating bracket 6, the pulse desorption assembly can move along the length direction of the support member 62 to avoid the recovery tank 10 and the conveyor belt 9.

[0042] Optionally, the high-voltage pulse separation device for battery electrodes also includes sensors. Sensors are installed at the separation station 100, the unloading station 200, the detection station 300, and the loading station 400. These sensors can be touch switches, infrared sensors, laser sensors, etc. The sensor at the separation station 100 is connected to the pulse power supply in the pulse desorption assembly. When the pulse desorption assembly moves to the separation station 100, the sensor sends a signal to the pulse power supply to initiate discharge. The sensor at the unloading station 200 is connected to the air pump in the pulse desorption assembly. When the pulse desorption assembly moves to the unloading station 200, the sensor sends a signal to the air pump to activate the air pump to inflate the adsorption plate 4. The sensor at the detection station 300 is connected to the detection assembly 8. When the pulse desorption assembly moves to the detection station 300, the sensor sends a signal to the detection assembly 8 to activate the detection assembly 8. The sensor at the loading station 400 is connected to the conveyor belt 9. When the pulse desorption assembly moves to the loading station 400, the sensor sends a signal to the conveyor belt 9 to start the conveyor belt 9 to transport the battery electrode 5.

[0043] Specifically, the process of separating the battery electrode 5 using the high-voltage pulse separation device includes: the rotating bracket 6 rotating clockwise. When the pulse desorption assembly moves to the loading station 400, the pulse desorption assembly comes into contact with the conveyor belt 9, and the conveyor belt 9 transports the battery electrode 5 toward the pulse desorption assembly. At the same time, the pulse desorption assembly rotates around its own axis. The adsorption plate 4 draws in air, and the battery electrode 5 is wrapped around the periphery of the pulse desorption assembly under the adsorption of the adsorption plate 4. When the pulse desorption assembly moves to the separation station 100, the pulse desorption assembly is immersed in water, and the pulse power supply performs pulse discharge on the battery electrode 5 through the positive electrode plate 2 and the negative electrode plate 3, so that the active material in the battery electrode 5 is released into the water. When the pulse desorption assembly moves to the unloading station 200, the adsorption plate 4 blows air outward, and the battery electrode 5 falls off the pulse desorption assembly into the recycling tank 10. When the pulse desorption assembly moves to the detection station 300, the detection component 8 detects whether the processed battery electrode 5 on the pulse desorption assembly has been successfully detached, so as to remove the battery electrode 5 left on the pulse desorption assembly.

[0044] In this embodiment, the pulse desorption assembly is driven to rotate along the circumference of the rotating support 6, allowing it to be in motion underwater. The disturbance of the water promotes the detachment of active material from the battery electrode 5 into the water. Simultaneously, the pulse desorption assembly can alternately be positioned below and above the water surface to perform pulse discharge and replacement of the battery electrode 5. This structure improves the continuity of the battery electrode 5 separation process, thereby increasing production efficiency.

[0045] The above content is only an optional embodiment of this application. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this application. The content of this specification should not be construed as a limitation of this application.

Claims

1. A pulse desorption assembly based on directional circulation, comprising a roller (1), a positive electrode plate (2), a negative electrode plate (3), and an adsorption plate (4), wherein the positive electrode plate (2), the negative electrode plate (3), and the adsorption plate (4) are arranged around the periphery of the roller (1), the positive electrode plate (2) and the negative electrode plate (3) are spaced apart, both the positive electrode plate (2) and the negative electrode plate (3) are connected to a pulse power supply, and the adsorption plate (4) is provided with a plurality of adsorption holes (41), the adsorption holes (41) being used to adsorb battery electrode sheets (5), and by rotating the roller (1), the battery electrode sheets (5) can be wound around the periphery of the pulse desorption assembly, and both the positive electrode plate (2) and the negative electrode plate (3) abut against the battery electrode sheets (5).

2. The pulse desorption assembly according to claim 1, wherein, There are multiple positive electrode plates (2) and negative electrode plates (3), which are staggered along the circumferential direction of the roller (1).

3. The pulse desorption assembly according to claim 2, wherein, Along the circumferential direction of the roller (1), an adsorption plate (4) is provided between adjacent positive electrode plates (2) and negative electrode plates (3).

4. The pulse desorption assembly according to claim 1 further includes an air pump, wherein the adsorption plate (4) has a receiving cavity (40), and an air extraction hole (42) is provided on the adsorption plate (4), wherein the air extraction hole (42) and the adsorption hole (41) are both connected to the receiving cavity (40), the adsorption hole (41) is located on the side of the adsorption plate (4) away from the roller (1), and the air extraction hole (42) is located on the side of the adsorption plate (4) facing the roller (1).

5. The pulse desorption assembly according to claim 4, wherein, The receiving cavity (40) is provided with a plurality of partitions (45) at intervals, the partitions (45) divide the receiving cavity (40) into a plurality of sub-chambers, and each sub-chamber is provided with an air extraction hole (42) on its cavity wall.

6. A device for high-voltage pulse separation of battery electrodes, comprising a rotating bracket (6), a water tank (7), and a pulse desorption assembly as described in any one of claims 1 to 5, wherein the rotating bracket (6) is rotatably disposed above the water tank (7), the pulse desorption assembly is mounted on the rotating bracket (6), and the rotating bracket (6) is capable of carrying the pulse desorption assembly to rotate about the center of the rotating bracket (6) so that the pulse desorption assembly can be selectively immersed in the water in the water tank (7).

7. The apparatus for separating battery electrodes by high-voltage pulse according to claim 6, wherein, The rotating support (6) includes a rotating base (61) and a plurality of support members (62). Along the circumferential direction of the rotating base (61), the plurality of support members (62) are evenly spaced around the circumference of the rotating base (61). The rotating base (61) is used to drive the support members (62) to rotate. Each support member (62) is provided with the pulse desorption component at one end away from the rotating base (61).

8. The apparatus for separating battery electrodes by high-voltage pulse according to claim 7, wherein, Along the rotation direction of the pulse desorption assembly, there are sequentially distributed a separation station (100), a material discharge station (200), a detection station (300), and a loading station (400). The water tank (7) is located at the separation station (100). The material discharge station (200) is equipped with a recycling tank (10) for collecting battery electrode sheets (5) detached from the pulse desorption assembly. The detection station (300) is equipped with a detection component (8) for detecting whether the pulse desorption assembly has the battery electrode sheet (5). The loading station (400) is equipped with a conveyor belt (9) for conveying the battery electrode sheet (5).

9. The apparatus for separating battery electrodes by high-voltage pulse according to claim 7, wherein, The support member (62) is provided with a drive assembly (63), which is connected to the corresponding pulse desorption assembly. The drive assembly (63) is used to drive the pulse desorption assembly to move closer to or away from the rotating base (61).

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