Device for separating positive electrode current collectors of batteries by means of high-voltage pulse

Abstract

A device for separating positive electrode current collectors of batteries by means of high-voltage pulse, comprising a treatment tank (1), a rotating table (3), a collection tank (2), a pulse discharge part, and a pressing plate (4). The rotating table (3) is arranged in the treatment tank (1) in a liftable / lowerable manner, a plurality of current collector placement positions are arranged on the upper side of the rotating table (3), all the current collector placement positions are distributed at intervals around the axis of the rotating table (3), and a positive electrode contact (301) and a negative electrode contact (302) are arranged in each current collector placement position. The collection tank (2) is arranged around the outer circumferential side of the treatment tank (1), and the collection tank (2) is used for collecting aluminum foils separated from positive electrode current collectors (100). A positive electrode output end of the pulse discharge part is electrically connected to each positive electrode contact (301), and a negative electrode output end of the pulse discharge part is electrically connected to each negative electrode contact (302). The pressing plate (4) is arranged at the upper side of the rotating table (3) in a liftable / lowerable manner, and the pressing plate (4) is used for pressing the positive electrode current collectors (100) on the rotating table (3).

Description

Device for separating battery positive electrode current collector by high-voltage pulse Technical Field

[0001] The present application relates to the field of battery recycling technology, for example, to a device for separating battery positive electrode current collectors by high-voltage pulse separation. Background Art

[0002] In waste battery recycling, it is often necessary to separate the positive active material on the positive current collector from the aluminum foil to facilitate recovery. Research has shown that placing the positive current collector in water and passing a 25kV high-voltage pulse through the positive current collector can separate most of the positive active material from the aluminum foil surface, while the aluminum foil retains its shape.

[0003] Currently, a device for separating battery positive electrode current collectors using high-voltage pulses includes an electrical control box, a steel drum, and a robotic arm. The steel drum is equipped with a socket inside, and the robotic arm is equipped with a fixed clamp. The electrical control box is located outside the steel drum. The fixed clamp is electrically connected to the positive terminal of the electrical control box via a positive high-voltage wiring harness, and the socket is electrically connected to the negative terminal of the electrical control box via a negative high-voltage wiring harness. During use, water is poured into the steel drum, and one end of the positive electrode current collector to be processed is clamped between the fixed clamp on the robotic arm. The robotic arm immerses the positive electrode current collector in the water in the steel drum and plugs the other end of the positive electrode current collector into the socket, so that the two ends of the positive electrode current collector are electrically connected to the positive and negative terminals of the electrical control box, respectively. Under the action of the high-voltage pulse current, the positive active material on the positive electrode current collector is separated from the aluminum foil. However, this device can only process one positive electrode current collector at a time, which is inefficient. Furthermore, the positive electrode active material and aluminum foil particles in the water must be sorted later, which is not conducive to the recovery of the positive active material and aluminum foil.

[0004] Summary of the Invention

[0005] The present application provides a device for separating a positive electrode current collector of a battery using high-voltage pulses, which can improve the efficiency of separating the positive electrode current collector and facilitate the collection of the positive electrode active material and aluminum foil of the positive electrode current collector.

[0006] This application adopts the following technical solutions:

[0007] Provided is a device for separating a positive electrode current collector of a battery using high-voltage pulses, comprising:

[0008] a processing barrel having an opening at the top;

[0009] A rotating table, the rotating table can be raised and lowered in the processing barrel, and the rotating table can rotate relative to the processing barrel around its own axis. A plurality of current collector placement positions are provided on the upper side of the rotating table. The current collector placement positions are used to place the positive electrode current collector to be processed. All the current collector placement positions are spaced around the axis of the rotating table. Each of the current collector placement positions is provided with a positive electrode contact and a negative electrode contact. The positive electrode contact and the negative electrode contact in each of the current collector placement positions are spaced apart. The rotating table is provided with a first hollow structure throughout its thickness direction.

[0010] a collecting barrel, the collecting barrel being arranged around the outer periphery of the processing barrel and being used to collect the aluminum foil separated from the positive electrode current collector;

[0011] a pulse discharge component, the pulse discharge component being disposed outside the processing barrel and the collecting barrel, the positive output end of the pulse discharge component being electrically connected to each of the positive contacts, and the negative output end of the pulse discharge component being electrically connected to each of the negative contacts;

[0012] A pressing plate is arranged on the upper side of the rotating table in a liftable manner, and is used to selectively press each of the positive electrode current collectors on the rotating table.

[0013] In one or more embodiments, a positive conductive block and a negative conductive block are respectively protruding from the inner side walls of the processing barrel. The positive conductive block is electrically connected to the positive output end of the pulse discharge component through a first high-voltage wire harness, and the negative conductive block is electrically connected to the negative output end of the pulse discharge component through a second high-voltage wire harness. A first conductive block and a second conductive block are respectively protruding from the lower side of the rotating table. The first conductive block can abut against the positive conductive block, and the second conductive block can abut against the negative conductive block. The first conductive block is respectively electrically connected to each of the positive contacts on the rotating table, and the second conductive block is respectively electrically connected to each of the negative contacts on the rotating table.

[0014] In one or more embodiments, a first lifting cylinder is connected to the lower side of the rotating platform, and the first lifting cylinder is used to drive the rotating platform to move up and down;

[0015] The pressing plate is connected to a second lifting cylinder, and the second lifting cylinder is used to drive the pressing plate to move up and down relative to the rotating platform.

[0016] In one or more embodiments, the pressure plate is protruding toward one side of the rotating table and is provided with multiple groups of clamping assemblies, and the clamping assemblies correspond one-to-one to the current collector placement positions. Each group of the clamping assemblies includes two clamping blocks, and the two clamping blocks in each group of the clamping assemblies correspond to the positive contact and the negative contact, respectively, and the clamping blocks are used to clamp the positive current collector in the current collector placement position.

[0017] In one or more embodiments, the pressing plate is provided with a second hollow structure, and the second hollow structure runs through both sides of the pressing plate in the thickness direction.

[0018] In one or more embodiments, an injection component is provided on the side of the pressure plate facing the turntable, and the injection component includes a boss and multiple groups of nozzle groups. One end of the boss is connected to the pressure plate, and the other end protrudes toward the turntable. Multiple groups of the nozzle groups are arranged around the outer periphery of the boss, and each of the nozzle groups can spray high-pressure gas and / or high-pressure liquid in the radial direction of the turntable.

[0019] In one or more embodiments, the top of the collecting bucket protrudes from the top of the processing bucket.

[0020] In one or more embodiments, a drain basket is provided in the collection bucket, and the drain basket is used to drain the aluminum foil.

[0021] In one or more embodiments, the inner side wall of the collection barrel and the outer side wall of the processing barrel are both protrudingly provided with support blocks, and the drain basket abuts against the two support blocks.

[0022] In one or more embodiments, it also includes a horizontal moving rod and a feeding mechanism, wherein the horizontal moving rod can move back and forth along a set horizontal direction, and the length direction of the horizontal moving rod extends along the set horizontal direction, the horizontal moving rod is arranged at intervals above the processing barrel, and the pressure plate is connected to the horizontal moving rod through the second lifting cylinder, and the feeding mechanism includes a third lifting cylinder and a feeding plate, the feeding plate is located between the horizontal moving rod and the processing barrel, and the feeding plate is connected to the horizontal moving rod through the third lifting cylinder, the feeding plate and the pressure plate are respectively spaced along the length direction of the horizontal moving rod, and a plurality of groups of suction cup assemblies are provided on the side of the feed plate facing the processing barrel, and each group of the suction cup assemblies can selectively adsorb the positive electrode current collector.

[0023] The device for separating the positive electrode current collector of a battery by high-voltage pulses provided in the present application can simultaneously separate the positive electrode current collector through the cooperation of a rotating table and a pressing plate, and can collect the separated aluminum foil in batches through a collecting bucket, thereby greatly improving the processing efficiency of the positive electrode current collector and having high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic structural diagram of a device for separating a positive electrode current collector of a battery using a high-voltage pulse according to an embodiment (when the rotating platform is in the first position);

[0025] FIG2 is a schematic structural diagram of a device for separating a positive electrode current collector of a battery using a high-voltage pulse according to an embodiment (when the rotating platform is in the second position);

[0026] FIG3 is a schematic structural diagram of a device for separating a positive electrode current collector of a battery using a high-voltage pulse according to an embodiment (when the rotating platform is in the third position);

[0027] FIG4 is a schematic structural diagram of the positive electrode current collector according to the embodiment when placed on a rotating table;

[0028] FIG5 is a top view of the rotating table according to the embodiment;

[0029] FIG6 is a bottom view of the pressing plate;

[0030] FIG7 is a schematic structural diagram of the embodiment of the pressing plate pressing the positive electrode current collector against the rotating table;

[0031] FIG8 is a schematic structural diagram of a device for separating a positive electrode current collector of a battery using high-voltage pulses according to another embodiment.

[0032] In the figure: 1. Processing bucket; 101. Positive conductive block; 102. Negative conductive block; 2. Collection bucket; 201. Drain basket; 3. Rotating table; 301. Positive contact; 302. Negative contact; 303. Cone; 304. Outer ring; 305. First reinforcement ring; 306. Second reinforcement ring; 307. Reinforcement rod; 308. Reinforcement plate; 309. Through hole; 310. First conductive block; 311. Second conductive block; 312. First hollow structure; 4. Pressing plate; 401. Pressing block; 402. Second hollow structure; 5. Injection component; 501. Boss; 502. Nozzle; 6. First lifting cylinder; 7. Second lifting cylinder; 8. Feeding mechanism; 801. Feeding plate; 802. Suction cup assembly; 803. Third lifting cylinder; 9. Support block; 10. Horizontal moving rod; 11. Fixing frame; 100. Positive electrode current collector. DETAILED DESCRIPTION

[0033] The technical solutions of the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0034] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction 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.

[0035] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0036] As shown in Figures 1 to 7, the present application provides a device for separating the positive electrode current collector of a battery by high-voltage pulse, comprising a processing barrel 1, a rotating table 3, a pulse discharge component (not shown in the figure), a collecting barrel 2 and a pressing plate 4. The top of the processing barrel 1 has an opening. The rotating table 3 can be raised and lowered in the processing barrel 1, and the rotating table 3 can rotate relative to the processing barrel 1 around its own axis. In this example, the cross-section of the processing barrel 1 is circular, and the axis of the processing barrel 1 coincides with the axis of the rotating table 3. A plurality of current collector placement positions (not shown in the figure) are provided on the upper side of the rotating table 3. The current collector placement position is used to place the positive electrode current collector 100 to be processed. All the current collector placement positions are spaced around the axis of the rotating table 3. Each current collector placement position is provided with a positive contact 301 and a negative contact 302. The positive contact 301 and the negative contact 302 in each current collector placement position are spaced apart, and the rotating table 3 is provided with a first hollow structure 312 throughout its thickness direction. In this example, the length of each current collector placement position extends along the radial direction of the turntable 3, and the positive contacts 301 and the negative contacts 302 in each current collector placement position are spaced apart along the radial direction of the turntable 3. The collecting bucket 2 is arranged around the outer periphery of the processing bucket 1, and the collecting bucket 2 is used to collect the aluminum foil separated from the positive current collector 100. The pulse discharge component is arranged outside the processing bucket 1, and the positive output end of the pulse discharge component can be electrically connected to each positive contact 301, and the negative output end of the pulse discharge component can be electrically connected to each negative contact 302. The pressure plate 4 can be raised and lowered and is arranged on the upper side of the turntable 3. The pressure plate 4 is used to selectively press each positive current collector 100 on the turntable 3. The rated voltage of the pulse discharge component is 25kv. During actual implementation, the processing barrel 1 is filled with a set amount of water, the positive electrode collector 100 is submerged in the water in the processing barrel 1, and the 25kv high-voltage pulse can separate most of the positive electrode active material on the positive electrode collector 100 from the surface of the aluminum foil, and the aluminum foil maintains its shape.

[0037] The turntable 3 has a first position and a second position. The first position is below the second position. The turntable 3 can be lifted and lowered back and forth between the first position and the second position. The first position is below the liquid level in the treatment barrel 1, and the second position is above the treatment barrel 1. When the turntable 3 is in the first position, the turntable 3 is submerged in the water in the treatment barrel 1. When the turntable 3 is in the second position, the turntable 3 is above the treatment barrel 1. The rotating table 3 is arranged in a liftable manner in the processing barrel 1. When the rotating table 3 is lowered to the first position, the positive output end of the pulse discharge component is electrically connected to each positive contact 301, and the negative output end of the pulse discharge component is electrically connected to each negative contact 302, and the rotating table 3 and each positive current collector 100 on the rotating table 3 are immersed in the water of the processing barrel 1. The high-voltage pulse current is conducted to each positive current collector 100 through the pulse discharge component. Under the action of the high-voltage pulse, the positive active material of each positive current collector 100 on the rotating table 3 is separated from the aluminum foil. Since the rotating table 3 is provided with a first hollow structure 312 throughout its thickness direction, the separated positive active material can be discharged through the first hollow structure 312. The structure 312 falls to the bottom of the processing barrel 1, and the aluminum foil is pressed on the rotating table 3, which realizes the simultaneous separation of multiple separated positive electrode current collectors 100, improves the efficiency of the positive electrode current collector 100 processing, and facilitates the subsequent separate collection of the positive electrode active material and the aluminum foil; when the rotating table 3 rises to the second position, the rotating table 3 drives the separated aluminum foil to pass through the open end of the processing barrel 1 and protrude from the top of the processing barrel 1, removes the pressing plate 4 from the rotating table 3, and rotates the rotating table 3 relative to the processing barrel 1. Under the action of centrifugal force, the various aluminum foils on the rotating table 3 are thrown into the collecting barrel 2, and the aluminum foil separated from the positive electrode current collector 100 is collected by the collecting barrel 2, thereby realizing batch collection of multiple aluminum foils. In addition, a plurality of current collector placement positions are provided on the upper side of the rotating table 3, each current collector placement position can accommodate a positive electrode current collector 100 to be processed, so that a plurality of positive electrode current collectors 100 can be processed simultaneously on the rotating table 3, ensuring the separation efficiency of the positive electrode current collector 100; a lifting and lowering pressure plate 4 is provided, through which the plurality of positive electrode current collectors 100 on the rotating table 3 can be pressed tightly, so that the two ends of the positive electrode current collector 100 are respectively in close contact with the positive electrode contact 301 and the negative electrode contact 302, ensuring electrical conduction between the positive electrode current collector 100 and the high-voltage pulse component, thereby improving the reliability of the device for separating the positive electrode current collector of the battery by pressure pulse. This device for separating the positive electrode current collector of the battery by high-voltage pulse can simultaneously separate the positive electrode current collector 100 through the cooperation of the rotating table 3 and the pressure plate 4, and can collect the separated aluminum foil in batches through the collection bucket 2, greatly improving the processing efficiency of the positive electrode current collector 100 and having high reliability.

[0038] 4 and 5 , the turntable 3 includes a truncated cone body 303 and an outer ring body 304 arranged at intervals around the outer periphery of the truncated cone body 303. A first reinforcement ring 305 and a second reinforcement ring 306 are arranged at intervals between the outer ring body 304 and the truncated cone body 303. The first reinforcement ring 305 and the second reinforcement ring 306 are distributed at intervals. The first reinforcement ring 305 is close to the outer ring body 304, and the second reinforcement ring 306 is close to the truncated cone body 303. A plurality of reinforcement plates 308 are connected between the outer ring body 304 and the first reinforcement ring 305. The plurality of reinforcement plates 308 are distributed at intervals around the outer periphery of the first reinforcement ring 305. The first reinforcement ring 305 and the second reinforcement ring 306, as well as the second reinforcement ring 306 and the truncated cone body 303, are connected by a plurality of reinforcement rods 307. Each reinforcing plate 308 is provided with a positive contact 301, and a plurality of negative contacts 302 are arranged on the conical body 303 at intervals around its own axis. The negative contacts 302 correspond to the positive contacts 301 one by one. The gap between the first reinforcing ring 305 and the second reinforcing ring 306, the gap between the second reinforcing ring 306 and the conical body 303, and the gap between the outer ring body 304 and the first reinforcing ring 305 form a first hollow structure 312. When in use, the two ends of the positive current collector 100 are placed on the reinforcing plate 308 and the conical body 303. The positive active material separated by the positive current collector 100 on the rotating table 3 can fall from the first hollow structure 312 located between the reinforcing plate 308 and the conical body 303 to the bottom of the processing barrel 1 to collect the positive active material in the processing barrel.

[0039] Continuing with reference to Figures 4 and 5, in order to increase the probability of the positive electrode active material falling from the rotating table 3 to the bottom of the processing barrel 1, the reinforcing plate 308 located on both sides of each negative electrode contact 302 and the frustum 303 located on both sides of each negative electrode contact 302 are provided with through holes 309, so that the separated positive electrode active material can also fall to the bottom of the processing barrel 1 through the through holes 309.

[0040] 1 to 3 , the inner sidewalls of the treatment barrel 1 are respectively provided with a positive conductive block 101 and a negative conductive block 102. The positive conductive block 101 is electrically connected to the positive output terminal of the pulse discharge component via a first high-voltage wire harness (not shown in the figure), and the negative conductive block 102 is electrically connected to the negative output terminal of the pulse discharge component via a second high-voltage wire harness (not shown in the figure). A first conductive block 310 and a second conductive block 311 are respectively provided on the lower side of the rotating table 3. The first conductive block 310 can abut against the positive conductive block 101, and the second conductive block 311 can abut against the negative conductive block 102. The first conductive block 310 is respectively electrically connected to each positive contact 301 on the rotating table 3, and the second conductive block 311 is respectively electrically connected to each negative contact 302 on the rotating table 3. Specifically, the first conductive block 310 may be electrically connected to each positive electrode contact 301 through a wire or a circuit board, and the second conductive block 311 may be electrically connected to each negative electrode contact 302 through a wire or a circuit board. It can be understood that when the turntable 3 is located at the first position, the first conductive block 310 on the lower side of the turntable 3 abuts against the positive conductive block 101, and the second conductive block 311 on the lower side of the turntable 3 abuts against the negative conductive block 102, so that the positive current collector 100 in the current collector placement position on the turntable 3 is electrically connected with the pulse discharge component. When the turntable 3 is located at the second position, the first conductive block 310 and the second conductive block 311 both rise to above the positive conductive block 101 and the negative conductive block 102. At this time, the first conductive block 310 does not contact the positive conductive block 101 and the second conductive block 311 does not contact the negative conductive block 102. In this way, when the turntable 3 rotates relative to the processing barrel 1, the positive conductive block 101 and the negative conductive block 102 will not interfere with the position of the turntable 3.

[0041] Continuing to refer to Figures 1 to 3, a first lifting cylinder 6 is connected to the lower side of the turntable 3. The first lifting cylinder 6 is used to drive the turntable 3 to rise and fall, and the first lifting cylinder 6 provides power for the lifting of the turntable 3. The pressing plate 4 is connected to the second lifting cylinder 7. The second lifting cylinder 7 is used to drive the pressing plate 4 to rise and fall relative to the turntable 3. The second lifting cylinder 7 provides power for the lifting of the pressing plate 4. Specifically, the first lifting cylinder 6 and the second lifting cylinder 7 are both lifting cylinders with adjustable stroke. In this example, a fixed frame 11 is fixedly provided above the pressing plate 4. The second lifting cylinder 7 has a cylinder body and a telescopic rod that can be extended and retracted relative to the cylinder body. The cylinder body of the second lifting cylinder 7 is connected to the fixed frame 11, and the telescopic rod of the second lifting cylinder 7 is connected to the pressing plate 4. The fixed frame 11 provides positioning and support for the second lifting cylinder 7.

[0042] Specifically, the first lifting cylinder 6 comprises a cylinder body and a telescopic rod that can extend and retract relative to the cylinder body. In one example, the cylinder body of the first lifting cylinder 6 is fixedly mounted at the bottom of the treatment vat 1. One end of the telescopic rod of the first lifting cylinder 6 is connected to the cylinder body, and the other end is connected to the turntable 3 via a rotating component (e.g., a rotating motor). The rotating component drives the turntable 3 to rotate relative to the first lifting cylinder 6. In another example, a rotating component can be mounted at the bottom of the treatment vat 1 and connected to the first lifting cylinder 6. Rotation of the rotating component drives the rotation of the first lifting cylinder 6 and the turntable 3.

[0043] Referring to Figures 1 to 3 and Figure 7, the pressure plate 4 is provided with multiple groups of clamping assemblies protruding from one side of the rotating table 3. The clamping assemblies correspond one-to-one to the current collector placement positions. Each group of clamping assemblies includes two clamping blocks 401. The two clamping blocks 401 in each group of clamping assemblies correspond to the positive electrode contact 301 and the negative electrode contact 302 respectively. The clamping blocks 401 are used to compress the positive current collector 100 in the current collector placement position. The clamping blocks 401 of each group of clamping assemblies protrude from the lower side of the pressure plate 4. When the clamping assemblies compress the positive current collector 100 in the current collector placement position, the two clamping blocks 401 in each group of clamping assemblies are respectively pressed on the parts of the positive current collector 100 that are directly opposite to the positive electrode contact 301 and the negative electrode contact 302. This design, on the one hand, enables the positive current collector 100 to have good contact with the positive contact and the negative electrode contact 302 through the cooperation of the two clamping blocks 401 with the positive electrode contact 301 and the negative electrode contact 302; on the other hand, Since the two pressing blocks 401 are both protruding from the side of the pressing plate 4 facing the positive electrode current collector 100, when the positive electrode current collector 100 is pressed on the rotating table 3, there is a certain gap between the part of the positive electrode current collector 100 located between the two pressing blocks 401 and the pressing plate 4. The positive electrode active material separated from the positive electrode current collector 100 can be discharged from the gap to the area outside the current collector placement position, reducing the contact area between the pressing plate 4 and the positive electrode current collector 100, which is conducive to the separation of the positive electrode active material and the aluminum foil.

[0044] For example, referring to FIG6 , the pressing plate 4 is provided with a second hollow structure 402, which extends through both sides of the thickness direction of the pressing plate 4. By providing the second hollow structure 402 on the pressing plate 4, the water flow in the treatment tank 1 can pass through the second hollow structure 402 on the pressing plate 4 during the process of the pressing plate 4 being raised and lowered in the water, reducing the resistance of the water flow to the pressing plate 4 and facilitating the raising and lowering of the pressing plate 4. In addition, when the pressing plate 4 rises together with the turntable 3, the positive electrode active material separated by the positive electrode current collector 100 can be discharged to the outside of the pressing plate 4 through the second hollow structure 402 along with the water flow. The water flow can drive the positive electrode active material to flow to the bottom of the turntable 3, thereby effectively reducing the positive electrode active material thrown out of the treatment tank 1 during the rotation of the turntable 3.

[0045] 1 to 3, 6 and 7, a spray component 5 is provided on the side of the pressing plate 4 facing the rotating table 3. The spray component 5 includes a boss 501 and a plurality of nozzle groups. One end of the boss 501 is mounted on the pressing plate 4, and the other end protrudes toward the rotating table 3. The plurality of nozzle groups are arranged around the outer periphery of the boss 501. Each nozzle group can spray high-pressure gas and / or high-pressure liquid in the radial direction of the rotating table 3. In this example, each nozzle group is arranged to spray high-pressure liquid in the radial direction of the rotating table 3. It can be understood that when the positive electrode pressing block 401 and the negative electrode pressing block 401 on the pressing plate 4 press the positive electrode current collector 100, the lower end of the boss 501 needs to avoid the rotating table 3 to prevent the boss 501 from interfering with the rotating table 3 and affecting the pressing of the pressing plate 4 on the positive electrode current collector 100. In actual implementation, the turntable 3 also has a third position, which is located between the first and second positions and above the liquid level in the processing barrel 1. After the positive electrode current collector 100 is separated on the turntable 3, the turntable 3 and the pressure plate 4 are raised from the first position to the third position. Each nozzle group sprays high-pressure liquid in the radial direction of the turntable 3, using the high-pressure liquid to spray out the positive electrode active material trapped between the pressure plate 4 and the turntable 3, and then the turntable 3 is raised to the second position. The arrangement of the spray component 5 allows the turntable 3 to spray high-pressure liquid into the area between the pressure plate 4 and the turntable 3 before it rises to the second position. This effectively reduces the amount of positive electrode active material remaining on the turntable 3 and reduces the probability of the positive electrode active material being thrown out of the collection barrel 2. Of course, in other examples, each nozzle group can also be configured to spray high-pressure gas in the radial direction of the turntable 3, or each nozzle group can be configured to simultaneously spray high-pressure gas and high-pressure liquid in the radial direction of the turntable 3.

[0046] In order to prevent the positive contact 301, the negative contact 302, the positive pressing block 401 and the negative pressing block 401 from blocking the high-pressure gas and / or high-pressure liquid sprayed by the nozzle group, a nozzle group is set between two adjacent current collector placement positions.

[0047] In this example, each nozzle group includes two nozzles 502 , and the two nozzles 502 in each nozzle group are spaced apart along the height direction of the boss 501 . The two nozzles 502 expand the spraying area of ​​the nozzle group and reduce the spraying blind area.

[0048] In actual implementation, the number of nozzles 502 in each nozzle group can be flexibly adjusted as needed. For example, the number of nozzles 502 in the nozzle group assembly can be one, two or three, etc., and there is no restriction on the number of nozzles 502 in each nozzle group.

[0049] When the turntable 3 rotates at the second position, the centrifugal force causes the aluminum foils on the turntable 3 to be thrown out of the processing bucket 1 at a high speed on the same horizontal plane. In order to enable the collecting bucket 2 to collect all the aluminum foils thrown out from the turntable 3, the top of the collecting bucket 2 protrudes from the top of the processing bucket 1. The part of the collecting bucket 2 protruding from the top of the processing bucket 1 is used to block the aluminum foil thrown out of the processing bucket 1, so that the thrown aluminum foil falls smoothly into the collecting bucket 2.

[0050] It is understood that when the rotating table 3 spins the aluminum foil into the collection bucket 2, water adhering to the rotating table 3 is also easily spun into the collection bucket 2. Furthermore, the aluminum foil is adhered to the water. Referring to Figures 1 to 3, to facilitate draining the aluminum foil from the processing bucket 1, a drain basket 201 is provided within the collection bucket 2. Drain basket 201 is used to drain the aluminum foil. Specifically, the aluminum foil is spun from the rotating table 3 and enters the drain basket 201. Drain basket 201 drains the water from the aluminum foil, facilitating subsequent drying of the aluminum foil.

[0051] For example, support blocks 9 protrude from the inner wall of the collection bucket 2 and the outer wall of the treatment bucket 1, and the drain basket 201 abuts against the two support blocks 9. Specifically, the two support blocks 9 surround the treatment bucket 1. The two support blocks 9 support the drain basket 201 in the collection bucket 2, allowing it to be removably placed in the collection bucket 2. When the aluminum foil needs to be removed, the drain basket 201 can be directly removed from the treatment bucket 1.

[0052] In another embodiment, referring to Figure 8, in order to improve the automation of the device for separating the positive electrode current collector of the battery by high-voltage pulse, the device for separating the positive electrode current collector of the battery by high-voltage pulse also includes a horizontal moving rod 10 and a feeding mechanism 8. The horizontal moving rod 10 can move back and forth along the set horizontal direction, and the length direction of the horizontal moving rod 10 extends along the set horizontal direction (that is, the direction indicated by the X arrow in the figure). The horizontal moving rod 10 is arranged at intervals above the processing barrel 1, and the pressing plate 4 is connected to the horizontal moving rod 10 through the second lifting cylinder 7. The feeding mechanism 8 includes a third lifting cylinder 803 and a feeding plate 801. The feeding plate 801 is located between the horizontal moving rod 10 and the processing barrel 1. The feed plate 801 is connected to the horizontal moving rod 10 through the third lifting cylinder 803. The feed plate 801 and the pressing plate 4 are respectively spaced apart along the length direction of the horizontal moving rod 10. A plurality of groups of suction cup assemblies 802 are provided on the side of the feed plate 801 facing the processing barrel 1. Each group of suction cup assemblies 802 can selectively adsorb the positive electrode current collector 100. The feeding mechanism 8 is used to transfer the positive electrode current collector 100 to be processed outside the device for high-voltage pulse separation of the battery positive electrode current collector to the current collector placement position on the rotating table 3. After the suction cup assembly 802 adsorbs the positive electrode current collector 100 to be processed, the movement of the feeding plate 801 transfers the adsorbed positive electrode current collector 100 to the rotating table 3. The horizontal moving rod 10 moves in the set horizontal direction, and can simultaneously drive the feeding mechanism 8 and the pressing plate 4 to move in the set horizontal direction. In this way, when the positive electrode current collector 100 to be processed needs to be transferred to the turntable 3, the feeding plate 801 is moved to the top of the processing barrel 1 by the horizontal moving rod 10. After the third lifting cylinder 803 drives the feeding plate 801 to descend to the set height, the positive electrode current collectors 100 adsorbed on the feeding plate 801 are placed correspondingly in the respective current collector placement positions on the turntable 3. Then, the third lifting cylinder 803 drives the feeding plate 801, and the horizontal moving rod 10 moves the feeding mechanism 8 away from the top of the processing barrel 1 and moves the pressing plate 4 to the top of the processing barrel 1, so that the pressing plate 4 is prepared to press the positive electrode current collectors 100 on the turntable 3.

[0053] For example, the distance D1 between the pressing plate 4 and the feeding plate 801 is set to be greater than the distance D2 between the side wall of the processing barrel 1 and the side wall of the collecting barrel 2. In this design, when the horizontal moving rod 10 moves the feeding plate 801 to the side of the collecting barrel 2 away from the processing barrel 1 along the set horizontal direction, the pressing plate 4 is just located directly above the processing barrel 1. In this way, while the feeding plate 801 absorbs the external positive electrode current collector 100 to be processed, the pressing plate 4 can press the positive electrode current collector 100 on the rotating table 3, which is beneficial to improve the processing efficiency of the positive electrode current collector 100.

[0054] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components 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" are used solely for descriptive purposes and have no special meaning.

[0055] Throughout this specification, references to terms such as "an embodiment" or "example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0056] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for separating a positive electrode current collector of a battery by high-voltage pulse, comprising: A processing barrel (1), wherein the top of the processing barrel (1) has an opening; A rotating table (3), the rotating table (3) being arranged in a lifting manner in the processing barrel (1), and the rotating table (3) being able to rotate relative to the processing barrel (1) around its own axis, a plurality of current collector placement positions being arranged on the upper side of the rotating table (3), the current collector placement positions being used to place positive electrode current collectors (100) to be processed, all the current collector placement positions being spaced apart around the axis of the rotating table (3), each of the current collector placement positions being provided with a positive electrode contact (301) and a negative electrode contact (302), the positive electrode contact (301) and the negative electrode contact (302) in each of the current collector placement positions being spaced apart, and the rotating table (3) being provided with a first hollow structure (312) in a thickness direction thereof; A collecting barrel (2), the collecting barrel (2) being arranged around the outer peripheral side of the processing barrel (1), the collecting barrel (2) being used to collect the aluminum foil separated from the positive electrode current collector (100); A pulse discharge component, the pulse discharge component being arranged outside the processing barrel (1) and the collecting barrel (2), the positive output end of the pulse discharge component being electrically connected to each of the positive contacts (301), and the negative output end of the pulse discharge component being electrically connected to each of the negative contacts (302); A pressing plate (4), the pressing plate (4) being arranged on the upper side of the rotating platform (3) in a liftable manner, and the pressing plate (4) being used to selectively press each of the positive electrode current collectors (100) on the rotating platform (3).

2. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to claim 1, wherein: The inner side walls of the treatment barrel (1) are respectively provided with a positive conductive block (101) and a negative conductive block (102), the positive conductive block (101) is electrically connected to the positive output end of the pulse discharge component through a first high-voltage wire harness, and the negative conductive block (102) is electrically connected to the negative output end of the pulse discharge component through a second high-voltage wire harness. The lower side of the rotating table (3) is respectively provided with a first conductive block (310) and a second conductive block (311), the first conductive block (310) can abut against the positive conductive block (101), and the second conductive block (311) can abut against the negative conductive block (102), the first conductive block (310) is respectively electrically connected to each of the positive contacts (301) on the rotating table (3), and the second conductive block (311) is respectively electrically connected to each of the negative contacts (302) on the rotating table (3).

3. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to claim 1, wherein: A first lifting cylinder (6) is connected to the lower side of the rotating platform (3), and the first lifting cylinder (6) is used to drive the rotating platform (3) to move up and down; The pressing plate (4) is connected to a second lifting cylinder (7), and the second lifting cylinder (7) is used to drive the pressing plate (4) to rise and fall relative to the rotating platform (3).

4. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to claim 1, wherein: The pressing plate (4) is provided with a plurality of groups of clamping assemblies protruding from one side of the rotating table (3), and the clamping assemblies correspond one-to-one to the current collector placement positions. Each group of the clamping assemblies comprises two clamping blocks (401), and the two clamping blocks (401) in each group of the clamping assemblies correspond to the positive electrode contact (301) and the negative electrode contact (302), respectively. The clamping blocks (401) are used to clamp the positive electrode current collector (100) in the current collector placement position.

5. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to claim 1, wherein: The pressing plate (4) is provided with a second hollow structure (402), and the second hollow structure (402) runs through both sides of the pressing plate (4) in the thickness direction.

6. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to claim 1, wherein: A spray component (5) is arranged on the side of the pressure plate (4) facing the rotating table (3), and the spray component (5) includes a boss (501) and a plurality of nozzle groups. One end of the boss (501) is connected to the pressure plate (4), and the other end protrudes toward the rotating table (3). The plurality of nozzle groups are arranged around the outer periphery of the boss (501), and each of the nozzle groups can spray high-pressure gas and / or high-pressure liquid in the radial direction of the rotating table (3).

7. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to claim 1, wherein: The top of the collecting barrel (2) protrudes from the top of the processing barrel (1).

8. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to any one of claims 1 to 7, wherein: A drain basket (201) is arranged in the collection barrel (2), and the drain basket (201) is used to drain the aluminum foil.

9. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to claim 8, wherein: The inner wall of the collection barrel (2) and the outer wall of the processing barrel (1) are both protrudingly provided with support blocks (9), and the drain basket (201) abuts against the two support blocks (9).

10. The device for separating the positive electrode current collector of a battery by high-voltage pulse according to claim 3, further comprising a horizontal moving rod (10) and a feeding mechanism (8), wherein the horizontal moving rod (10) can reciprocate along a set horizontal direction, and the length direction of the horizontal moving rod (10) extends along the set horizontal direction, the horizontal moving rod (10) is arranged above the processing barrel (1) at intervals, the pressing plate (4) is connected to the horizontal moving rod (10) through the second lifting cylinder (7), and the feeding mechanism (8) comprises a third lifting cylinder (803) and a feeding plate (801), the feed plate (801) is located between the horizontal moving rod (10) and the processing barrel (1), the feed plate (801) is connected to the horizontal moving rod (10) through the third lifting cylinder (803), the feed plate (801) and the pressing plate (4) are respectively spaced apart along the length direction of the horizontal moving rod (10), and a plurality of groups of suction cup assemblies (802) are provided on one side of the feed plate (801) facing the processing barrel (1), and each group of the suction cup assemblies (802) can selectively adsorb the positive electrode current collector (100).

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