Continuous recycling device and recycling method for lithium-ion battery positive electrode sheets

Abstract

A continuous recycling device and method for lithium-ion battery positive electrode sheets, wherein the recycling device includes a conveying mechanism (1), a feeding mechanism (2), a pulse mechanism (3), and a discharging mechanism (4). The conveying mechanism (1) includes a conveyor line (11) and multiple clamps (12). The multiple clamps (12) are evenly distributed on the conveyor line (11) along the conveying direction of the conveyor line (11). The conveyor line (11) is sequentially provided with a feeding area (111), a pulse area (112), and a discharging area (113) along its own conveying direction. The feeding mechanism (2) is configured to install the positive electrode sheet to be processed into the feeding area (111). 1) In the clamp (12), each clamp (12) is configured to sequentially transfer the positive electrode sheet from the loading area (111) to the unloading area (113) via the pulse area (112). The pulse area (112) is located on the side of the conveyor line (11) facing the ground. The pulse mechanism (3) includes a first driving member (31) and a pulse member (32). The first driving member (31) is spaced below the pulse area (112). The first driving member (31) and the pulse member (32) are connected in a transmission so that the pulse member (32) presses against the positive electrode sheet. The unloading mechanism (4) is configured to unload the aluminum foil after the positive electrode sheet is separated.

Description

Technical Field

[0001] This application relates to the field of positive electrode recycling technology, for example to a continuous recycling device and method for lithium-ion battery positive electrode sheets. Background Technology

[0002] With the development of new energy technologies, the demand for lithium-ion batteries has surged. However, due to the limited lifespan of lithium-ion batteries, the number of discarded lithium-ion batteries is also increasing. The positive electrode of a lithium-ion battery consists of aluminum foil and an active material layer adhered to the surface of the aluminum foil. By recycling retired lithium-ion batteries, elements such as cobalt and lithium contained in the active material layer can be recovered, which can reduce the raw material cost of subsequent lithium-ion batteries and alleviate the environmental pollution problem caused by discarded lithium-ion batteries.

[0003] High-voltage pulse discharge is a common method for recycling lithium-ion batteries, used to separate the aluminum foil from the active material layer of the positive electrode. However, in related technologies, pulse discharge recycling devices cut the complete positive electrode into multiple small pieces, and can only fix one small piece between the positive and negative electrodes of the device at a time for high-voltage pulse treatment. After the treatment is completed, the small piece is removed and replaced with a new one to be processed, resulting in low production efficiency. Summary of the Invention

[0004] This application provides a continuous recycling device and method for lithium-ion battery cathode sheets. The recycling device has a simple structure, a high degree of automation, and high production efficiency.

[0005] This application provides a continuous recycling device for lithium-ion battery positive electrode sheets, including: a conveying mechanism, a feeding mechanism, a pulse mechanism, and a discharging mechanism;

[0006] The conveying mechanism includes a conveyor line and multiple clamps. The multiple clamps are evenly distributed on the conveyor line along the conveying direction of the conveyor line. The conveyor line is sequentially provided with a loading area, a pulse area and a unloading area along its own conveying direction.

[0007] The feeding mechanism is configured to install the positive electrode sheet to be processed into the fixture in the feeding area, and each fixture is configured to sequentially transfer the positive electrode sheet from the feeding area to the unloading area via the pulse area, wherein the pulse area is located on the side of the conveyor line facing the ground;

[0008] The pulse mechanism includes a first driving member and a pulse member. The first driving member is spaced apart below the pulse region and is drively connected to the pulse member so that the pulse member selectively abuts against the positive electrode plate.

[0009] The unloading mechanism is configured to unload the aluminum foil after the positive electrode sheet has been separated.

[0010] As an optional solution for a continuous recycling device for lithium-ion battery positive electrode sheets, the clamp includes a mounting base, a first elastic element, and two clamping plates spaced apart along a first direction. The ends of the two clamping plates that are far apart from each other are respectively hinged to the mounting base, and the ends of the two clamping plates that are close to each other are movable ends. The movable ends are provided with hooks, and the mounting base is provided with elastic pressing locks. When the clamping plates are pressed, the hooks engage or disengage with the elastic pressing locks, so that the movable ends clamp or release the positive electrode sheet. The first elastic element is provided between the clamping plates and the mounting base, and the first elastic element has a tendency to drive the movable ends to rotate around the hinge point to move away from the mounting base.

[0011] As an optional solution for a continuous recycling device for lithium-ion battery cathode sheets, the elastic pressing lock includes a fixed base, an elastic claw, and a second elastic element. The fixed base has an installation groove, and the elastic claw is inserted into the installation groove and slidably connected to the groove wall. The two ends of the second elastic element are respectively connected to the elastic claw and the bottom of the installation groove. The elastic claw includes two main parts connected at an angle. A first engaging part protrudes from the side of the two main parts that are adjacent to each other. The hook intermittently engages with the first engaging part. A guide part protrudes from the side of the two main parts that are far apart from each other. A guide slide is provided on the inner sidewall of the installation groove. The guide part is slidably connected to the guide slide, and the guide slide has an engaging hole. When the guide part is inserted into the engaging hole, the hook engages with the first engaging part. After the guide part separates from the engaging hole, the hook separates from the first engaging part.

[0012] As an optional solution for a continuous recycling device for lithium-ion battery cathode sheets, the inner wall of the mounting groove has two protruding stops. The two stops are respectively provided with two sets of guide slides. The guide slides include a short vertical groove, a long inclined groove, a long vertical groove, and a short inclined groove. The lower end of one stop is connected to the short vertical groove, the lower end of the short vertical groove is connected to the long inclined groove, and one side of the lower end of the long inclined groove is connected to the long vertical groove. The upper end of the long vertical groove is connected to the short vertical groove of the other stop through the short inclined groove. Each long inclined groove is provided with a snap-fit ​​hole, and the two snap-fit ​​holes are arranged in a cross-shaped staggered arrangement with the two stops.

[0013] As an optional solution for a continuous recycling device for lithium-ion battery positive electrode sheets, the hook includes a clamping part and a second engaging part. The clamping part is connected to the clamping plate. The clamping part has the second engaging part protruding from both sides along the second direction. The second direction is set at an angle to the first direction. The clamping part passes through the gap between the two first engaging parts to press the main body. The second engaging part engages with the first engaging part intermittently.

[0014] As an optional solution for a continuous recycling device for lithium-ion battery positive electrode sheets, the conveyor line is further provided with a locking area and an unlocking area. The locking area is located between the feeding area and the pulse area, and the unlocking area is located between the pulse area and the unloading area. The feeding mechanism includes a feeding component and a locking component. The feeding component is spaced apart on one side of the feeding area and is configured to place the positive electrode sheet between the clamping plate and the mounting base. The locking component is spaced apart on one side of the locking area and is configured to press the clamping plate to engage the hook with the elastic pressing lock, thus clamping the positive electrode sheet between the clamping plate and the mounting base. The unloading mechanism includes an unlocking component and a unloading component. The unlocking component is spaced apart on one side of the unlocking area and is configured to press the clamping plate to separate the hook from the elastic pressing lock. The unloading component is spaced apart on one side of the unloading area and is configured to remove the aluminum foil from between the clamping plate and the mounting base.

[0015] As an optional solution for a continuous recycling device for positive electrode sheets of lithium-ion batteries, the pulse element includes a first electrode post and a second electrode post spaced apart along the first direction. The two clamping plates are respectively provided with first holes corresponding to the first electrode post and the second electrode post. The first electrode post and the second electrode post pass through the corresponding first holes and abut against the two ends of the positive electrode sheet.

[0016] As an alternative to a continuous recycling device for lithium-ion battery cathode sheets, the diameter of the first hole gradually decreases from the side away from the mounting base toward the side closer to the mounting base; and / or,

[0017] The mounting base has a limiting groove configured to define the position of the positive electrode plate; and / or,

[0018] The clamps are made of conductive material, and the first and second poles respectively abut against the two clamps.

[0019] As an alternative to the continuous recycling device for lithium-ion battery cathode sheets, it also includes a reaction tank, in which the pulse mechanism is disposed, and the reaction tank is filled with a reaction liquid, with the pulse zone located below the surface of the reaction liquid.

[0020] As an optional solution for a continuous recycling device for lithium-ion battery positive electrode sheets, the conveyor line includes a driven roller disposed in the pulse zone. One end of the driven roller is rotatably connected to the wall of the reaction tank, and the other end of the driven roller is provided with a fixing pin. The central axis of the fixing pin is spaced apart from the rotation axis of the driven roller. The first driving member includes a guide seat and a connecting rod. The pulse element is disposed on the guide seat. Guide grooves are recessed on two opposite tank walls of the reaction tank, and the length of the guide grooves extends vertically. The two ends of the guide seat are slidably disposed in the two guide grooves respectively. The connecting rod is disposed on the guide seat and has an oblong hole. The fixing pin is slidably disposed in the oblong hole. The driven roller rotates to drive the fixing pin to push the connecting rod, so that the guide seat moves along the guide groove. The pulse element abuts against or is spaced apart from the positive electrode sheet in the pulse zone.

[0021] This application also provides a method for continuous recycling of lithium-ion battery positive electrode sheets, applied to the aforementioned continuous recycling apparatus for lithium-ion battery positive electrode sheets, the method comprising:

[0022] The positive electrode sheets to be processed are stacked on one side of the feeding area of ​​the conveying line of the lithium-ion battery positive electrode sheet continuous recycling device. The feeding mechanism of the lithium-ion battery positive electrode sheet continuous recycling device feeds the positive electrode sheets one by one onto the clamps in the feeding area.

[0023] The conveyor line moves the clamp containing the positive electrode sheet in the feeding area to the pulse area of ​​the conveyor line. The first driving member of the pulse mechanism of the lithium-ion battery positive electrode sheet continuous recycling device drives the pulse element to rise so that the pulse element abuts against the positive electrode sheet. The pulse element is energized to separate the aluminum foil and active material layer of the positive electrode sheet.

[0024] After the aluminum foil separates from the active material layer, the active material layer falls freely downwards due to its own gravity and is collected. The conveyor line transfers the aluminum foil, which is still clamped on the fixture, from the pulse area to the unloading area of ​​the conveyor line. The unloading mechanism of the lithium-ion battery positive electrode continuous recycling device removes the aluminum foil from the fixture in the unloading area.

[0025] As an optional method for the continuous recycling of lithium-ion battery cathode sheets, the separation of the aluminum foil from the active material layer of the cathode sheet includes:

[0026] The pulse zone is positioned below the surface of the reaction liquid in the reaction tank of the lithium-ion battery positive electrode continuous recycling device. Driven by the conveyor line, the active material layer of the positive electrode after the pulse reaction is impacted and detached by the reaction liquid.

[0027] As an alternative method for the continuous recycling of lithium-ion battery cathode sheets, the following also applies:

[0028] The pulse element is slidably disposed on the side wall of the reaction tank, and one end of the linkage element is hinged to the end face of the driven roller on the conveyor line. The hinge point between the linkage element and the driven roller is spaced apart from the rotation axis of the driven roller. The other end of the linkage element is hinged to the pulse element. The conveyor line drives the driven roller to rotate, so that the linkage element synchronously drives the pulse element to abut or space from the positive electrode plate.

[0029] The driven roller is rotatably disposed in the pulse zone, and the linkage is the first driving component.

[0030] As an optional method for continuous recycling of lithium-ion battery cathode sheets, the feeding mechanism feeds the cathode sheets one by one onto the fixture in the feeding area, including:

[0031] In the feeding area, the feeding component of the feeding mechanism places the positive electrode sheet between the clamping plate and the mounting base of the fixture;

[0032] The conveyor line transfers the clamp containing the positive electrode sheet from the feeding area to the locking area on the conveyor line. The locking component of the feeding mechanism presses the clamping plate so that the hook of the clamping plate engages with the elastic pressing lock on the mounting base, thereby clamping the positive electrode sheet between the clamping plate and the mounting base.

[0033] As an alternative to a continuous recycling method for lithium-ion battery cathode sheets, the conveyor line transfers the aluminum foil, still held in the clamp, from the pulse zone to the unloading zone of the conveyor line. The unloading mechanism removes the aluminum foil from the clamp in the unloading zone, including:

[0034] The conveyor line transfers the aluminum foil, which is still clamped on the fixture, from the pulse area to the unlocking area on the conveyor line. The unlocking component of the unloading mechanism presses the clamping plate to separate the hook from the elastic pressing lock. The first elastic element between the clamping plate and the mounting base drives the clamping plate away from the mounting base, and the aluminum foil is released from the clamping of the clamping plate and the mounting base.

[0035] The conveyor line moves the fixture containing the aluminum foil in the unlocking area to the unloading area, and the unloading component of the unloading mechanism removes the aluminum foil. Attached Figure Description

[0036] The present application will now be described with reference to the accompanying drawings and embodiments.

[0037] Figure 1This is a schematic diagram of the structure of a continuous recycling device for lithium-ion battery positive electrode sheets according to an embodiment of this application.

[0038] Figure 2 This is a cross-sectional view of a continuous recycling apparatus for lithium-ion battery cathode sheets according to an embodiment of this application.

[0039] Figure 3 This is a schematic diagram of the fixture according to an embodiment of this application.

[0040] Figure 4 This is a schematic diagram of the structure of the elastic push-lock component according to an embodiment of this application.

[0041] Figure 5 This is a schematic diagram of the engagement (locked state) between the elastic push-lock and the hook in an embodiment of this application.

[0042] Figure 6 This is a schematic diagram of the engagement between the elastic push-lock and the hook in an embodiment of this application (unlocked state).

[0043] Figure 7 This is a schematic diagram of the guide slide structure according to an embodiment of this application.

[0044] Figure 8 This is a schematic diagram of the pulse mechanism according to an embodiment of this application.

[0045] Figure 9 This is a schematic diagram of a continuous recycling method for lithium-ion battery cathode sheets according to an embodiment of this application.

[0046] In the picture:

[0047] 1. Conveying mechanism; 11. Conveyor line; 111. Loading area; 112. Pulse area; 113. Unloading area; 114. Locking area; 115. Unlocking area; 12. Fixture; 121. Mounting base; 1211. Limiting groove; 122. First elastic element; 123. Clamping plate; 1231. Movable end; 1232. First hole; 124. Hook; 1241. Pressing part; 1242. Second locking part; 2. Loading mechanism; 21. Loading assembly; 22. Locking assembly; 3. Pulse mechanism; 31. First driving element; 311. Guide seat; 312. Connecting rod; 3121. Waist-shaped 313. Hole; 32. Support rod; 32. Pulse component; 321. First pole post; 322. Second pole post; 4. Feeding mechanism; 41. Unlocking component; 42. Feeding component; 5. Elastic pressing lock; 51. Fixed base; 511. Mounting groove; 512. Snap-fit ​​hole; 52. Elastic claw; 521. Main body; 522. First snap-fit ​​part; 523. Guide part; 53. Second elastic component; 54. Guide slide; 541. Short vertical groove; 542. Long inclined groove; 543. Long vertical groove; 544. Short inclined groove; 55. Stop part; 6. Reaction groove; 61. Guide groove; 7. Fixing pin. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, and not all embodiments.

[0049] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] Typically, pulsed discharge is applied to the positive electrode to separate the aluminum foil from the active material layer, allowing for the recovery of elements such as nickel, cobalt, and manganese from the active material layer. The principle of pulsed discharge is as follows: applying a high-voltage pulsed current to the aluminum foil causes it to generate a large amount of heat instantaneously, vaporizing the active material layer on the aluminum foil. Simultaneously, breakdown occurs, forming plasma, which causes the active material layer to detach from the aluminum foil in small particles. Both the active material layer particles and the aluminum foil can then be recycled and reused.

[0052] like Figure 1 and Figure 2As shown, the continuous recycling device for lithium-ion battery positive electrode sheets according to this application embodiment includes a conveying mechanism 1, a feeding mechanism 2, a pulse mechanism 3, and a discharging mechanism 4. The conveying mechanism 1 includes a conveyor line 11 and multiple clamps 12. All clamps 12 are evenly distributed on the conveyor line 11 along its conveying direction. The conveyor line 11 is sequentially provided with a feeding area 111, a pulse area 112, and a discharging area 113 along its own conveying direction. The feeding mechanism 2 is configured to install the positive electrode sheets to be processed into the feeding area 111. In the fixture 12, each fixture 12 can sequentially convey the positive electrode sheet from the loading area 111 to the unloading area 113 via the pulse area 112. The pulse area 112 is located on the side of the conveyor line 11 facing the ground. The pulse mechanism 3 includes a first driving member 31 and a pulse member 32. The first driving member 31 is spaced below the pulse area 112. The first driving member 31 and the pulse member 32 are connected in a transmission manner so that the pulse member 32 selectively presses against the positive electrode sheet. The unloading mechanism 4 is set to unload the aluminum foil after the positive electrode sheet is separated.

[0053] The loading area 111 and unloading area 113 are located on the top surface of the conveyor line 11 to facilitate the stable loading of the positive electrode sheet and the stable unloading of the aluminum foil. The pulse area 112 is located on the side of the conveyor line 11 facing the ground, that is, on the bottom surface of the conveyor line 11. Therefore, the positive electrode sheet needs to be clamped and fixed by the clamp 12 to ensure the connection stability of the positive electrode sheet. The clamp 12 always clamps the positive electrode sheet between the loading area 111 and the pulse area 112. After the pulse reaction in the pulse area 112, the aluminum foil is always clamped and transferred to the unloading area 113 by the clamp 12. By setting up the conveyor line 11 and the clamp 12, the positive electrode sheet clamped on the clamp 12 can be sequentially conveyed to the pulse area 112. The first driving component 31 drives the pulse component 32 to abut against the positive electrode sheet. The high-voltage pulse current supplied to the pulse component 32 flows into the positive electrode sheet, causing the aluminum foil on the positive electrode sheet to separate from the active material layer, thus achieving the separation and recovery of materials such as cobalt and lithium within the active material layer. By sequentially setting up the feeding area 111, the pulse area 112, and the unloading area 113 on the conveyor line 11, and cooperating with the feeding mechanism 2, the pulse mechanism 3, and the unloading mechanism 4, the positive electrode sheet can be automatically fed into the feeding area 111 by the feeding mechanism 2. Then, the conveyor line 11... The positive electrode sheet in the feeding area 111 is conveyed to the pulse area 112 for automatic high-voltage pulse separation. Finally, the conveyor line 11 conveys the aluminum foil separated in the pulse area 112 to the unloading area 113 for automatic unloading through the unloading mechanism 4. The multi-station collaborative parallel processing realizes continuous production of automatic feeding, automatic pulse, and automatic unloading of aluminum foil after the pulse. The degree of automation is high, which effectively improves the production efficiency of positive electrode sheet separation and recycling. One person can supervise multiple lithium-ion battery positive electrode sheet continuous recycling production lines, reducing the input of manual labor and avoiding contact between operators and the high-voltage pulse structure, reducing the occurrence of accidental electric shock accidents.

[0054] In this embodiment, as Figure 3As shown, the clamp 12 includes a mounting base 121, a first elastic element 122, and two clamping plates 123 spaced apart along a first direction (the first direction is the X direction shown in the figure). The ends of the two clamping plates 123 that are far apart from each other are hinged to the mounting base 121, and the ends of the two clamping plates 123 that are close to each other are movable ends 1231. The movable ends 1231 are provided with hooks 124. The mounting base 121 is provided with elastic pressing locks 5. By pressing the clamping plates 123, the hooks 124 are engaged or disengaged from the elastic pressing locks 5, so that the movable ends 1231 clamp or release the positive electrode plate. The first elastic element 122 is provided between the clamping plates 123 and the mounting base 121. The first elastic element 122 always has a tendency to drive the movable ends 1231 to rotate around the hinge point and move away from the mounting base 121. The positive electrode sheet is placed on the mounting base 121 by means of the hook 124 and the elastic pressing lock 5, with both ends of the positive electrode sheet located below the two clamping plates 123 respectively. One press can engage the hook 124 and the elastic pressing lock 5, so that the positive electrode sheet can be clamped between the clamping plate 123 and the mounting base 121. Pressing again can separate the hook 124 and the elastic pressing lock 5, so that the aluminum foil can be released from the clamping plate 123 and the mounting base 121, so that the unloading mechanism 4 can take it out. This structure is simple, the locking and unlocking operation is convenient and saves time and effort, and can realize the rapid opening and closing of the clamp 12.

[0055] Optionally, such as Figure 4As shown, the elastic push-lock component 5 includes a fixed base 51, an elastic claw 52, ​​and a second elastic element 53. The fixed base 51 has a mounting groove 511. The elastic claw 52 is inserted into the mounting groove 511 and slidably connected to the groove wall of the mounting groove 511. The two ends of the second elastic element 53 are respectively connected to the elastic claw 52 and the bottom of the mounting groove 511. The elastic claw 52 includes two main body parts 521 connected at an angle. The two main body parts 521 are respectively provided with a first engaging part 522 on their adjacent sides. A hook 12 is also provided. 4. The first engaging part 522 intermittently engages with the main body 521. Guide parts 523 protrude from opposite sides of the two main body parts 521. A guide slide 54 is provided on the inner wall of the mounting groove 511. The guide part 523 is slidably connected to the guide slide 54, and the guide slide 54 has engaging holes 512. When the guide part 523 is inserted into the engaging hole 512, the hook 124 engages with the first engaging part 522. After the guide part 523 separates from the engaging hole 512, the hook 124 separates from the first engaging part 522. Furthermore, the second elastic element 53 always drives the elastic claw 52 to move away from the bottom of the mounting groove 511, ensuring that the guide part 523 always engages with the engaging hole 512, thus guaranteeing the engagement stability of the elastic pressing lock 5. In addition, the mounting base 121 may be recessed with a clearance groove so that the bottom of the positive electrode sheet is exposed except for the two ends in the length direction. This facilitates the desorption of the active material layer after the positive electrode sheet is separated from the aluminum foil, reduces the situation where the active material layer is still pressed on the aluminum foil by the clamp 12, improves the separation effect between the pulse active material layer and the aluminum foil, and reduces the waste of the active material layer.

[0056] like Figure 5 and Figure 6 As shown, the mounting groove 511 is a cylindrical groove. The explanation here uses the unlocked and locked states of the clamp 12 as examples. When the clamping plate 123 is pressed, under the push of the hook 124, the elastic claw 52 overcomes the elasticity of the first elastic element 122 and slides downwards along the groove wall of the mounting groove 511. Simultaneously, the elastic claw 52 rotates 90 degrees along the central axis of the mounting groove 511, causing the guide part 523 to engage with the engagement hole 512. At this time, the first engagement part 522 clamps the hook 124, thus locking the hook 124. The clamp 12 is then in the locked state. In a fixed state, the positive electrode plate is secured between the clamp 123 and the mounting base 121. Pressing the clamp 123 again causes the guide part 523 to separate from the locking hole 512 under the push of the hook 124. Guided by the guide slide 54, the elastic claw 52 rotates 90 degrees along the groove wall of the mounting groove 511. At this time, the hook 124 disengages from the locking of the first locking part 522, and the movable end 1231 of the clamp 123 moves away from the mounting base 121 under the elastic force of the first elastic element 122 to open the clamp 12. This structure is simple and easy to operate.

[0057] Optionally, the bottom surface of the guide portion 523 is an inclined surface, which slopes downward from the end away from the elastic claw 52 toward the end near the elastic claw 52, ​​so that when the hook 124 presses the elastic claw 52, ​​the guide portion 523 can separate from the engagement hole 512 along the inclined surface. Of course, the edge of the engagement hole 512 can also be chamfered to facilitate the separation of the guide portion 523.

[0058] For example, such as Figure 4 , Figure 6 and Figure 7 As shown, the inner wall of the mounting groove 511 has two protruding stop parts 55, and the two stop parts 55 are respectively provided with two sets of guide slides 54. The guide slides 54 include a short vertical groove 541, a long inclined groove 542, a long vertical groove 543 and a short inclined groove 544. The lower end of one stop part 55 is connected to the short vertical groove 541, the lower end of the short vertical groove 541 is connected to the long inclined groove 542, one side of the lower end of the long inclined groove 542 is connected to the long vertical groove 543, and the upper end of the long vertical groove 543 is connected to the short vertical groove 541 of the other stop part 55 through the short inclined groove 544. Each long inclined groove 542 is provided with a snap-fit ​​hole 512, and the two snap-fit ​​holes 512 are arranged in a cross shape with the two stop parts 55. By setting the guide slide 54, the sliding guidance of the guide part 523 can be effectively guaranteed, and the accuracy of the guide part 523 engaging or disengaging from the snap-fit ​​hole 512 can be improved, thereby improving the accuracy of the first snap-fit ​​part 522 engaging or disengaging from the snap-fit ​​hook 124.

[0059] like Figure 5 and Figure 6 As shown, the hook 124 includes a pressing part 1241 and a second engaging part 1242. The pressing part 1241 is connected to the clamping plate 123. The pressing part 1241 has second engaging parts 1242 protruding from both sides along the second direction (the second direction is the Y direction shown in the figure). The second direction is set at an angle to the first direction. In this embodiment, the first direction is perpendicular to the second direction. The pressing part 1241 can pass through the gap between the two first engaging parts 522 to press the main body 521. The second engaging part 1242 engages with the first engaging part 522 intermittently. In the unlocked state, the second locking part 1242 is perpendicular to the first locking part 522. At this time, the end of the pressing part 1241 away from the clamping plate 123 and the second locking part 1242 can pass through the gap between the two first locking parts 522 and enter the space between the two main parts 521. When the pressing part 1241 presses the elastic claw 52 to rotate 90 degrees, the first locking part 522 and the second locking part 1242 are parallel, and the top of the second locking part 1242 is locked to the bottom side of the first locking part 522, thereby achieving the purpose of locking the hook 124 and the elastic pressing lock 5.

[0060] The specific working process of clamping and releasing the clamp 12 is as follows: Press the clamping plate 123 so that the second engaging part 1242 of the hook 124 passes through the gap between the two first engaging parts 522. The pressing part 1241 pushes the elastic claw 52 downward so that the guide part 523 enters the long inclined groove 542 along the short vertical groove 541 and engages into the engaging hole 512. During this process, the elastic claw 52 rotates 90 degrees so that the first engaging part 522 engages with the second engaging part 1242, thereby completing the locking of the hook 124 and the elastic pressing lock 5, thus achieving the clamping of the positive electrode plate by the clamping plate 123; Press the clamping plate 123 again, and the pressing part 1241 pushes the elastic claw 52 downward so that the guide part 523 disengages from the engagement. After passing through hole 512, the clamp continues along the long inclined groove 542 to the bottom of the long vertical groove 543, releasing the pressure on the clamping plate 123. Under the elastic force of the second elastic element 53, the elastic claw 52 drives the guide part 523 to move upward along the long vertical groove 543, and is guided through the short inclined groove 544 to the bottom of the stop part 55. During this process, the elastic claw 52 rotates 90 degrees. At this time, the first locking part 522 and the second locking part 1242 separate. Under the elastic force of the first elastic element 122, the pressing part 1241 drives the second locking part 1242 to disengage from between the two first locking parts 522, so as to complete the unlocking of the hook 124 and the elastic pressing lock 5. This process is repeated to achieve the clamping and unlocking of the clamp 12. The operation is simple and flexible. The first elastic element 122 and the second elastic element 53 can be springs directly. Of course, the first elastic element 122 can also be a torsion spring. The torsion spring is sleeved on the connecting shaft between the clamping plate 123 and the mounting base 121. This will not be described in detail here.

[0061] like Figure 2 As shown, the conveyor line 11 is also provided with a locking area 114 and an unlocking area 115. The locking area 114 is located between the feeding area 111 and the pulse area 112, and the unlocking area 115 is located between the pulse area 112 and the unloading area 113. The feeding mechanism 2 includes a feeding component 21 and a locking component 22. The feeding component 21 is spaced apart on one side of the feeding area 111 and is configured to place the positive electrode sheet between the clamping plate 123 and the mounting base 121. The locking component 22 is spaced apart on one side of the locking area 114 and is configured to place the positive electrode sheet between the clamping plate 123 and the mounting base 121. The clamping plate 123 is pressed to engage the hook 124 with the elastic pressing lock 5, so that the positive electrode sheet is clamped between the clamping plate 123 and the mounting base 121; the feeding mechanism 4 includes an unlocking component 41 and a feeding component 42. The unlocking component 41 is spaced apart on one side of the unlocking area 115 and is configured to press the clamping plate 123 to separate the hook 124 from the elastic pressing lock 5. The feeding component 42 is spaced apart on one side of the feeding area 113 and is configured to remove the aluminum foil from between the clamping plate 123 and the mounting base 121.

[0062] The loading assembly 21 and unloading assembly 42 can be operated directly by a robot combined with grippers. The locking assembly 22 and unlocking assembly 41 adopt the second and third driving components, respectively. In the initial state, the clamp 12 is set at an angle between the clamping plate 123 and the mounting base 121, so that there is a space for placing the positive electrode sheet between the clamping plate 123 and the mounting base 121. The robot of the loading assembly 21 drives the first gripper to place the positive electrode sheet to be processed from the outside onto the clamp 12 in the loading area 111, so as to realize the automatic loading of the positive electrode sheet. The locking assembly 22, i.e. the second driving component, presses the clamping plate 123 to lock the clamping plate 123. Hook 124 engages within the elastic pressing lock 5 to stably clamp the positive electrode sheet between the clamping plate 123 and the mounting base 121. After the pulse reaction in the pulse zone 112, the clamp 12 loaded with aluminum foil is conveyed to the unlocking zone 115. The third drive unit presses the clamping plate 123, causing the hook 124 to separate from the elastic pressing lock 5. The movable end 1231 of the clamping plate 123 opens, facilitating the conveyance of the clamping plate 12 to the unloading zone 113. The robot of the unloading assembly 42 drives the second gripper to unload the aluminum foil. The unloaded clamping plate 12 is then conveyed from the unloading zone 113 to the loading zone 111. This process is repeated to achieve continuous pulse recovery of the positive electrode sheet. The first drive unit 31, the second drive unit, and the third drive unit can adopt linear drive structures such as cylinders or electric cylinders. The second drive unit and the third drive unit can simultaneously press the two clamping plates 123. In other embodiments, the loading assembly 21 and the unloading assembly 42 can also adopt structures such as robot-driven suction cups. By setting the locking area 114 and the unlocking area 115, which are separated from the loading area 111 and the unloading area 113, multiple processes can operate independently without interference, and the waiting time between separate operations is short, which can effectively improve the production efficiency of the lithium-ion battery cathode sheet continuous recycling device.

[0063] In some embodiments, such as Figure 8 As shown, the pulse device 32 includes a first electrode 321 and a second electrode 322 spaced apart along a first direction. Two clamping plates 123 have first holes 1232 corresponding to the first electrode 321 and the second electrode 322, respectively. The first electrode 321 and the second electrode 322 pass through the corresponding first holes 1232 and abut against both ends of the positive electrode plate. Since only aluminum foil can conduct electricity, the aluminum foil on the positive electrode plate is exposed at least at the position relative to the first hole 1232. The first electrode 321 and the second electrode 322 abut against both ends of the aluminum foil to form a current-carrying circuit, allowing the pulse current to flow through the aluminum foil. By setting the first hole 1232, when the first electrode post 321 and the second electrode post 322 come into contact with the positive electrode plate, the side of the positive electrode plate away from the first electrode post 321 or the second electrode post 322 is supported by the mounting base 121, which prevents the positive electrode plate from being punctured by the first electrode post 321 or the second electrode post 322, or from being pushed and displaced by the first electrode post 321 or the second electrode post 322, thus effectively ensuring the structural and positional stability of the positive electrode plate during the pulse discharge reaction.

[0064] Optionally, the diameter of the first hole 1232 gradually decreases from the side away from the mounting base 121 towards the side closer to the mounting base 121. That is, the inclined hole wall of the first hole 1232 can serve as a guide surface when the first electrode post 321 and the second electrode post 322 move towards the positive electrode, improving the contact stability between the first electrode post 321 and the second electrode post 322 and the positive electrode. In addition, the mounting base 121 is provided with a limiting groove 1211 to limit the position of the positive electrode. The setting of the limiting groove 1211 facilitates the improvement of the positional stability of the first electrode. Of course, the clamping plate 123 is made of conductive material, and the first electrode post 321 and the second electrode post 322 respectively abut against the two clamping plates 123. In this embodiment, the first electrode 321 and the second electrode 322 abut against the wall of the first hole 1232. That is, in addition to abutting against the aluminum foil themselves, the first electrode 321 and the second electrode 322 can also abut against the aluminum foil through the clamping plate 123, ensuring the stability of the connection between the first electrode 321 and the second electrode 322 and the aluminum foil. This prevents the exposed portion of the aluminum foil on the positive electrode sheet from being separated from the first electrode 321 or the second electrode 322, thus avoiding the inability to form a complete power circuit. Furthermore, the mounting base 121 is made of insulating material, improving the stability of current flow and preventing current conduction to the transmission line 11 from affecting the operation of other structures. The first electrode 321 and the second electrode 322 are the positive electrode and the negative electrode, respectively, and are connected to the positive and negative pulse currents.

[0065] like Figure 2 As shown, the continuous recovery device for lithium-ion battery positive electrode sheets also includes a reaction tank 6, a pulse mechanism 3 disposed within the reaction tank 6, and a reaction liquid contained within the reaction tank 6. The pulse zone 112 is located below the surface of the reaction liquid. By setting the reaction tank 6 and placing the pulse zone 112 below the surface of the reaction liquid, the active material layer after the positive electrode sheet separation can be dispersed in the reaction liquid, preventing the vaporized active material layer from drifting away with the air. This helps to improve the recovery rate of the active material layer. Furthermore, through the conveying mechanism 11, some of the active material layer adhering to the aluminum foil can be detached due to relative impact with the reaction liquid, thus improving the desorption effect of the active material layer.

[0066] In other embodiments, such as Figure 2 and Figure 8As shown, the conveyor line 11 includes a driven roller disposed in the pulse zone 112. One end of the driven roller is rotatably connected to the wall of the reaction tank 6, and the other end is provided with a fixing pin 7. The central axis of the fixing pin 7 is spaced apart from the rotation axis of the driven roller. The first driving member 31 includes a guide seat 311 and a connecting rod 312. The pulse member 32 is disposed on the guide seat 311. The two opposite walls of the reaction tank 6 are recessed with guide grooves 61, and the length of the guide grooves 61 extends vertically. The two ends of the guide seat 311 are slidably disposed in the two guide grooves 61 respectively. The guide seat 311 is provided with a connecting rod 312. The connecting rod 312 is provided with a waist-shaped hole 3121. The fixing pin 7 is slidably disposed in the waist-shaped hole 3121. The driven roller rotates to drive the fixing pin 7 to push the connecting rod 312, so that the guide seat 311 moves along the guide groove 61, so that the pulse member 32 abuts or is spaced apart from the positive electrode plate of the pulse zone 112.

[0067] A support rod 313 is provided on the guide seat 311. A connecting rod 312 is provided at the end of the support rod 313 away from the guide seat 311. The length of the connecting rod 312 extends in the horizontal direction, that is, the length of the waist-shaped hole 3121 extends in the horizontal direction. Driven by the conveyor line 11, the driven roller makes a circular motion. When the fixed pin 7, which is eccentrically set on the end face of the driven roller, moves from the lowest point to the highest point, it drives the support rod 313 to move the guide seat 311 upward along the guide groove 61, thereby realizing that the pulse element 32 fixed on the guide seat 311 rises and abuts against the positive electrode. When the fixed pin 7 moves from the highest point to the lowest point along with the rotation of the driven roller, it drives the support rod 313 to move the guide seat 311 downward along the guide groove 61, thereby realizing that the pulse element 32 fixed on the guide seat 311 moves downward and separates from the current collector, so that the conveyor line 11 can transfer the positive electrode in the next clamp 12 to the pulse area 112, and transfer the current collector that has been separated in the pulse area 112 from the pulse area 112 to the unloading area 113. The rotation of the driven roller drives the fixed pin 7 and the support rod 313 to drive the pulse element 32, which effectively improves the consistency of the pulse element 32 contacting the positive electrode and the transmission of the positive electrode by the conveyor line 11. It also reduces the need for additional active drive mechanisms, reduces energy consumption and lowers the investment in equipment production costs.

[0068] Optionally, the conveyor line 11 is at least partially located outside the opening of the reaction tank 6. The loading area 111, locking area 114, unlocking area 115, and unloading area 113 are all located outside the opening of the reaction tank 6 to facilitate the loading of the positive electrode sheet and the unloading of the aluminum foil, and to ensure the stability of the positive electrode sheet and aluminum foil on the conveyor line 11, so as to prevent the positive electrode sheet or aluminum foil from falling out of the clamp 12.

[0069] like Figure 9As shown, this application also provides a method for continuous recycling of lithium-ion battery positive electrode sheets, applicable to the continuous recycling apparatus for lithium-ion battery positive electrode sheets in any of the above embodiments. The method for continuous recycling of lithium-ion battery positive electrode sheets includes the following steps:

[0070] S10. The positive electrode sheets to be processed are stacked on one side of the feeding area 111 of the conveying line 11 of the conveying mechanism 1 of the lithium-ion battery positive electrode sheet continuous recycling device. The feeding mechanism 2 of the lithium-ion battery positive electrode sheet continuous recycling device feeds the positive electrode sheets one by one onto the clamp 12 of the feeding area 111.

[0071] S20, the conveyor line 11 moves the clamp 12 loaded with positive electrode sheets in the feeding area 111 to the pulse area 112 of the conveyor line 11. The first drive member 31 of the pulse mechanism 3 of the lithium-ion battery positive electrode sheet continuous recycling device drives the pulse member 32 to rise so that the pulse member 32 abuts against the positive electrode sheet. The pulse member 32 is energized to separate the aluminum foil of the positive electrode sheet from the active material layer.

[0072] S30. After the aluminum foil is separated from the active material layer, the active material layer falls freely to the bottom for collection due to its own gravity. The conveyor line 11 transfers the aluminum foil, which is still clamped on the fixture 12, from the pulse area 112 to the unloading area 113 of the conveyor line 11. The unloading mechanism 4 of the lithium-ion battery positive electrode continuous recycling device takes out the aluminum foil from the fixture 12 in the unloading area 113.

[0073] In the above method, the positive electrode sheets are conveyed one by one to the pulse zone 112 via the conveyor line 11 and the clamp 12. The first drive unit 31 of the pulse mechanism 3 drives the pulse unit 32 to desorb and separate the positive electrode sheets by pulse discharge. After desorption and separation, the aluminum foil is carried away from the pulse zone 112 by the conveyor line 11, and at the same time, it carries the next untreated positive electrode sheet into the pulse zone 112 for pulse discharge. This enables continuous pulse discharge recovery of the positive electrode sheets and improves the pulse discharge recovery efficiency. With the setting of the feeding mechanism 2 and the unloading mechanism 4, the automatic feeding of the positive electrode sheets to be processed and the automatic unloading of the aluminum foil after the pulse reaction can be realized. The degree of automation is high, reducing manual input and avoiding contact between operators and the high-voltage pulse structure, thus reducing the occurrence of accidental electric shock accidents.

[0074] In the lithium-ion battery positive electrode continuous recycling device as described in the aforementioned technical solution, the lithium-ion battery positive electrode continuous recycling device also provides a reaction tank 6, with the pulse zone 112 set below the liquid surface of the reaction liquid in the reaction tank 6. Driven by the conveyor line 11, the active material layer after the positive electrode pulse reaction can be impacted and detached by the reaction liquid. The separated active material layer can float in the reaction liquid, avoiding vaporization into particulate active material layer that floats away with the air, which helps to improve the recovery rate of positive electrode material.

[0075] Optionally, such as Figure 2 and Figure 8 As shown, the conveyor line 11 also provides a driven roller rotatably disposed in the pulse zone 112. The first driving member 31 is a linkage member, which slides the pulse member 32 on the side wall of the reaction tank 6, so that one end of the linkage member is hinged to the end face of the driven roller, and the hinge point between the linkage member and the driven roller is spaced apart from the rotation axis of the driven roller. The other end is hinged to the pulse member 32. In step S20, the conveyor line 11 drives the driven roller to rotate, so that the linkage member synchronously drives the pulse member 32 to abut or space from the positive electrode, which effectively improves the consistency of the abutment between the pulse member 32 and the positive electrode and the transmission of the positive electrode by the conveyor line 11, and can reduce the setting of additional active driving mechanism, reduce energy consumption and reduce the investment in equipment production costs.

[0076] like Figure 2 and Figure 3 As shown, the conveyor line 11 also provides a locking area 114, and step S10 includes the following specific steps:

[0077] S101, In the feeding area 111, the feeding component 21 of the feeding mechanism 2 places the positive electrode sheet between the clamping plate 123 of the clamp 12 and the mounting base 121.

[0078] S102, the conveyor line 11 transfers the clamp 12 loaded with positive electrode sheets in the feeding area 111 to the locking area 114. The locking component 22 of the feeding mechanism 2 presses the clamp 123 so that the hook 124 of the clamp 123 engages with the elastic pressing lock 5 on the mounting base 121, so that the positive electrode sheet is clamped between the clamp 123 and the mounting base 121.

[0079] By setting the locking zone 114, this method divides the feeding and locking of the positive electrode sheet by the clamp 12 into two interval processes, reducing the interference and waiting time between the feeding component 21 and the locking component 22. It can feed the next clamp 12 while the locking of one clamp 12 is completed, effectively improving the working efficiency of the feeding mechanism 2, thereby improving the overall production efficiency of the lithium-ion battery positive electrode sheet continuous recycling device.

[0080] Conveyor line 11 also provides unlocking area 115, and step S30 includes the following specific steps:

[0081] S301, the conveyor line 11 transfers the aluminum foil still held on the clamp 12 from the pulse area 112 to the unlocking area 115. The unlocking component 41 of the unloading mechanism 4 presses the clamping plate 123 to separate the hook 124 from the elastic pressing lock 5. The first elastic element 122 between the clamping plate 123 and the mounting base 121 drives the clamping plate 123 away from the mounting base 121, and the aluminum foil is released from the clamping of the clamping plate 123 and the mounting base 121.

[0082] S302, the conveyor line 11 moves the clamp 12 loaded with aluminum foil from the unlocking area 115 to the unloading area 113, and the unloading component 42 of the unloading mechanism 4 removes the aluminum foil.

[0083] By setting the unlocking zone 115, this method divides the unlocking and unloading of the remaining aluminum foil after the pulse reaction of the fixture 12 into two interval processes, reducing the mutual interference and waiting time between the unlocking component 41 and the unloading component 42. It can unlock the previous fixture 12 in the unlocking zone 115 while unloading in the unloading zone 113, and the two stations can be processed in parallel, effectively improving the working efficiency of the unloading mechanism 4, thereby improving the overall production efficiency of the lithium-ion battery positive electrode continuous recycling device.

[0084] The beneficial effects of this application embodiment are as follows: By setting up the conveyor line and the clamp, the positive electrode sheet clamped on the clamp can be sequentially conveyed to the pulse area. The first driving component drives the pulse component to abut the positive electrode sheet. The high-voltage pulse current supplied by the pulse component can flow into the positive electrode sheet to separate the aluminum foil on the positive electrode sheet from the active material layer, thereby achieving the separation and recovery of materials such as cobalt and lithium within the active material layer. By sequentially setting up a feeding area, a pulse area, and a discharging area on the conveyor line, and cooperating with the feeding mechanism, pulse mechanism, and discharging mechanism, the positive electrode sheet can be automatically fed into the feeding area by the feeding mechanism. Then, the conveyor line will transport the positive electrode sheet from the feeding area... The positive electrode sheet is conveyed to the pulse zone for automatic high-voltage pulse separation. Finally, the conveyor line conveys the aluminum foil separated in the pulse zone to the unloading zone for automatic unloading by the unloading mechanism. Multi-station collaborative parallel processing realizes continuous production of automatic feeding, automatic pulse, and automatic unloading of aluminum foil after pulse. The degree of automation is high, which effectively improves the production efficiency of positive electrode sheet separation and recycling. One person can supervise multiple lithium-ion battery positive electrode sheet continuous recycling production lines, reducing the input of manual labor and avoiding contact between operators and high-voltage pulse structures, reducing the occurrence of accidental electric shock accidents.

[0085] In the description herein, terms such as "upper" and "lower" refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0086] In the description of this specification, references to terms such as "an embodiment" indicate that a specific feature, structure, material, or characteristic associated with that embodiment is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment.

[0087] Furthermore, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in multiple embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A continuous recycling device for lithium-ion battery positive electrode sheets, comprising: The conveying mechanism (1), the feeding mechanism (2), the pulse mechanism (3), and the unloading mechanism (4) are included. The conveying mechanism (1) includes a conveyor line (11) and a plurality of clamps (12). The plurality of clamps (12) are evenly distributed on the conveyor line (11) along the conveying direction of the conveyor line (11). The conveyor line (11) is provided with a loading area (111), a pulse area (112) and a unloading area (113) in sequence along its own conveying direction. The feeding mechanism (2) is configured to install the positive electrode sheet to be processed into the clamp (12) of the feeding area (111), and each clamp (12) is configured to transfer the positive electrode sheet from the feeding area (111) to the unloading area (113) in sequence via the pulse area (112), wherein the pulse area (112) is located on the side of the conveyor line (11) facing the ground; The pulse mechanism (3) includes a first driving member (31) and a pulse member (32). The first driving member (31) is spaced below the pulse region (112). The first driving member (31) is connected to the pulse member (32) so that the pulse member (32) selectively abuts against the positive electrode plate. The feeding mechanism (4) is configured to unload the aluminum foil after the positive electrode sheet is separated.

2. The continuous recycling device for lithium-ion battery positive electrode sheets according to claim 1, wherein, The clamp (12) includes a mounting base (121), a first elastic element (122), and two clamping plates (123) spaced apart along a first direction. The ends of the two clamping plates (123) that are far apart from each other are respectively hinged to the mounting base (121), and the ends of the two clamping plates (123) that are close to each other are movable ends (1231). The movable ends (1231) are provided with hooks (124), and the mounting base (121) is provided with elastic pressing locks (5). When the clamp (123) is pressed, the hook (124) engages or disengages with the elastic pressing lock (5) to clamp or release the positive electrode plate. The first elastic element (122) is provided between the clamp (123) and the mounting base (121). The first elastic element (122) has a tendency to drive the movable end (1231) to rotate around the hinge point away from the mounting base (121).

3. The continuous recycling device for lithium-ion battery positive electrode sheets according to claim 2, wherein, The elastic pressing lock (5) includes a fixed base (51), an elastic claw (52), and a second elastic element (53). The fixed base (51) has a mounting groove (511). The elastic claw (52) is inserted into the mounting groove (511) and slidably connected to the groove wall of the mounting groove (511). The two ends of the second elastic element (53) are respectively connected to the elastic claw (52) and the bottom of the mounting groove (511). The elastic claw (52) includes two main body parts (521) connected at an angle. The two main body parts (521) are respectively provided with a first engaging part (522) on their adjacent sides. The hook (124) is connected to the first engaging part (522). The snap-fit ​​part (522) intermittently snaps in place. The two main body parts (521) are provided with guide parts (523) protruding from the opposite sides. The inner sidewall of the mounting groove (511) is provided with a guide slide (54). The guide part (523) is slidably connected to the guide slide (54). The guide slide (54) is provided with a snap-fit ​​hole (512). When the guide part (523) is inserted into the snap-fit ​​hole (512), the hook (124) snaps in place with the first snap-fit ​​part (522). After the guide part (523) separates from the snap-fit ​​hole (512), the hook (124) separates from the first snap-fit ​​part (522).

4. The continuous recycling device for lithium-ion battery positive electrode sheets according to claim 3, wherein, The inner wall of the mounting groove (511) has two protruding stops (55), and the two stops (55) are respectively provided with two sets of guide slides (54). The guide slides (54) include a short vertical groove (541), a long inclined groove (542), a long vertical groove (543), and a short inclined groove (544). The lower end of one of the stops (55) is connected to the short vertical groove (541), and the lower end of the short vertical groove (541) is connected to a... The long inclined groove (542) is connected to the long vertical groove (543) on one side of its lower end. The upper end of the long vertical groove (543) is connected to the short vertical groove (541) of another stop part (55) through the short inclined groove (544). Each long inclined groove (542) is provided with a snap-fit ​​hole (512). The two snap-fit ​​holes (512) and the two stop parts (55) are arranged in a cross-shaped staggered arrangement.

5. The continuous recycling device for lithium-ion battery positive electrode sheets according to claim 3, wherein, The hook (124) includes a pressing part (1241) and a second engaging part (1242). The pressing part (1241) is connected to the clamp (123). The pressing part (1241) has the second engaging part (1242) protruding from both sides along the second direction. The second direction is set at an angle to the first direction. The pressing part (1241) passes through the gap between the two first engaging parts (522) to press the main body (521). The second engaging part (1242) engages with the first engaging part (522) intermittently.

6. The continuous recycling device for lithium-ion battery positive electrode sheets according to claim 2, wherein, The conveyor line (11) is also provided with a locking area (114) and an unlocking area (115). The locking area (114) is located between the feeding area (111) and the pulse area (112), and the unlocking area (115) is located between the pulse area (112) and the unloading area (113). The feeding mechanism (2) includes a feeding component (21) and a locking component (22). The feeding component (21) is spaced apart on one side of the feeding area (111) and is configured to place the positive electrode sheet between the clamping plate (123) and the mounting base (121). The locking component (22) is spaced apart on one side of the locking area (114) and is configured to place the positive electrode sheet between the clamping plate (123) and the mounting base (121). Press the clamp (123) to engage the hook (124) with the elastic pressing lock (5), and hold the positive electrode between the clamp (123) and the mounting base (121); the feeding mechanism (4) includes an unlocking component (41) and a feeding component (42). The unlocking component (41) is spaced apart on one side of the unlocking area (115) and is configured to press the clamp (123) to separate the hook (124) from the elastic pressing lock (5). The feeding component (42) is spaced apart on one side of the feeding area (113) and is configured to remove the aluminum foil from between the clamp (123) and the mounting base (121).

7. The continuous recycling apparatus for lithium-ion battery positive electrode sheets according to any one of claims 2-6, wherein, The pulse device (32) includes a first pole (321) and a second pole (322) spaced apart along the first direction. The two clamping plates (123) are respectively provided with a first hole (1232) corresponding to the first pole (321) and the second pole (322). The first pole (321) and the second pole (322) pass through the corresponding first hole (1232) and abut against the two ends of the positive electrode plate.

8. The continuous recycling device for lithium-ion battery positive electrode sheets according to claim 7, wherein, The diameter of the first hole (1232) gradually decreases from the side away from the mounting base (121) toward the side closer to the mounting base (121); and / or, The mounting base (121) is provided with a limiting groove (1211) configured to limit the position of the positive electrode plate; and / or, The clamping plate (123) is made of conductive material, and the first pole (321) and the second pole (322) respectively abut against the two clamping plates (123).

9. The lithium-ion battery positive electrode continuous recycling device according to any one of claims 1-6 further includes a reaction tank (6), the pulse mechanism (3) is disposed in the reaction tank (6), the reaction tank (6) is filled with a reaction liquid, and the pulse zone (112) is located below the liquid surface of the reaction liquid.

10. The continuous recycling device for lithium-ion battery positive electrode sheets according to claim 9, wherein, The conveyor line (11) includes a driven roller (116) disposed in the pulse zone (112). One end of the driven roller (116) is rotatably connected to the wall of the reaction tank (6). The other end of the driven roller (116) is provided with a fixing pin (7), and the central axis of the fixing pin (7) is spaced apart from the rotation axis of the driven roller (116). The first driving member (31) includes a guide seat (311) and a connecting rod (312). The pulse member (32) is disposed on the guide seat (311). Guide grooves (61) are recessed on the two opposite walls of the reaction tank (6), and the guide grooves (61) are recessed. The length of 61) extends vertically, and the two ends of the guide seat (311) are slidably disposed in the two guide grooves (61). The guide seat (311) is provided with the connecting rod (312), and the connecting rod (312) is provided with the waist-shaped hole (3121). The fixing pin (7) is slidably disposed in the waist-shaped hole (3121). The driven roller (116) rotates to drive the fixing pin (7) to push the connecting rod (312) so that the guide seat (311) moves along the guide groove (61). The pulse element (32) abuts or is spaced from the positive electrode plate of the pulse region (112).

11. A method for continuous recycling of lithium-ion battery positive electrode sheets, applied to the continuous recycling apparatus for lithium-ion battery positive electrode sheets according to any one of claims 1-10, the method comprising: The positive electrode sheets to be processed are stacked on one side of the feeding area (111) of the conveying line (11) of the conveying mechanism (1) of the lithium-ion battery positive electrode sheet continuous recycling device. The feeding mechanism (2) of the lithium-ion battery positive electrode sheet continuous recycling device feeds the positive electrode sheets one by one onto the clamp (12) of the feeding area (111). The conveyor line (11) transfers the clamp (12) loaded with the positive electrode sheet in the feeding area (111) to the pulse area (112) of the conveyor line (11). The first drive member (31) of the pulse mechanism (3) of the lithium-ion battery positive electrode sheet continuous recycling device drives the pulse member (32) to rise so that the pulse member (32) abuts against the positive electrode sheet. The pulse member (32) is energized to separate the aluminum foil of the positive electrode sheet from the active material layer. After the aluminum foil is separated from the active material layer, the active material layer falls freely to the bottom for collection due to its own gravity. The conveyor line (11) transfers the aluminum foil, which is still clamped on the fixture (12), from the pulse area (112) to the unloading area (113) of the conveyor line (11). The unloading mechanism (4) of the lithium-ion battery positive electrode continuous recycling device takes out the aluminum foil from the fixture (12) in the unloading area (113).

12. The method for continuous recycling of lithium-ion battery positive electrode sheets according to claim 11, wherein, The step of separating the aluminum foil from the active material layer of the positive electrode includes: The pulse zone (112) is positioned below the surface of the reaction liquid in the reaction tank (6) of the lithium-ion battery positive electrode continuous recycling device. Under the drive of the conveyor line (11), the active material layer of the positive electrode after the pulse reaction is impacted and detached by the reaction liquid.

13. The method for continuous recycling of lithium-ion battery cathode sheets according to claim 12, further comprising: The pulse element (32) is slidably disposed on the side wall of the reaction tank (6), and one end of the linkage element is hinged to the end face of the driven roller (116) on the conveyor line (11). The hinge point between the linkage element and the driven roller (116) is spaced apart from the rotation axis of the driven roller (116). The other end of the linkage element is hinged to the pulse element (32). The conveyor line (11) drives the driven roller (116) to rotate, so that the linkage element synchronously drives the pulse element (32) to abut or space from the positive electrode sheet. The driven roller (116) is rotatably disposed in the pulse zone (112), and the linkage is the first driving member (31).

14. The method for continuous recycling of lithium-ion battery positive electrode sheets according to claim 11, wherein, The feeding mechanism (2) feeds the positive electrode sheets one by one onto the clamp (12) of the feeding area (111), including: In the feeding area (111), the feeding component (21) of the feeding mechanism (2) places the positive electrode sheet between the clamp (123) of the fixture (12) and the mounting base (121); The conveyor line (11) transfers the clamp (12) containing the positive electrode sheet in the feeding area (111) to the locking area (114) on the conveyor line (11). The locking component (22) of the feeding mechanism (2) presses the clamp (123) so that the hook (124) of the clamp (123) engages with the elastic pressing lock (5) on the mounting base (121), so that the positive electrode sheet is clamped between the clamp (123) and the mounting base (121).

15. The method for continuous recycling of lithium-ion battery positive electrode sheets according to claim 14, wherein, The conveyor line (11) transfers the aluminum foil, still held in the clamp (12), from the pulse zone (112) to the unloading zone (113) of the conveyor line (11), and the unloading mechanism (4) removes the aluminum foil from the clamp (12) in the unloading zone (113), including: The conveyor line (11) transfers the aluminum foil, which is still clamped on the clamp (12), from the pulse area (112) to the unlocking area (115) on the conveyor line (11). The unlocking component (41) of the unloading mechanism (4) presses the clamp (123) to separate the hook (124) from the elastic pressing lock (5). The first elastic element (122) between the clamp (123) and the mounting base (121) drives the clamp (123) away from the mounting base (121), and the aluminum foil is released from the clamp (123) and the mounting base (121). The conveyor line (11) moves the clamp (12) loaded with the aluminum foil in the unlocking area (115) to the unloading area (113), and the unloading component (42) of the unloading mechanism (4) removes the aluminum foil.

Images