A device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector

Abstract

This invention relates to the field of battery recycling technology and discloses a device for intelligent pulse discharge vaporization of the positive electrode current collector of retired lithium-ion batteries. The device includes an electrical control box and a steel drum. A robotic arm is fixedly mounted on the top of the electrical control box, and a telescopic cable box located on one side of the robotic arm is also fixedly mounted on the top of the electrical control box. A fixing clamp is provided at one end of the robotic arm, and a positive high-voltage cable harness is fixedly mounted below the robotic arm via a fixing block. This intelligent pulse discharge vaporization device for retired lithium-ion battery positive electrode current collector uses the fixing clamp to fix and remove the retired lithium-ion battery positive electrode current collector, inserting it into a socket-type negative electrode in the steel drum. Then, a pulsed high-voltage current is applied between the positive and negative high-voltage cable harnesses, instantly vaporizing the positive electrode current collector. This effectively separates the positive electrode active material, the positive electrode current collector, and the binder, making the separation more efficient and automated.

Description

Technical Field

[0001] The invention relates to the technical field of battery recycling, and in particular to a device for intelligent pulse discharge vaporization of anode current collectors of retired lithium-ion batteries. Background Art

[0002] Lithium-ion batteries are widely used in the fields of power and energy storage. The positive active materials in lithium-ion batteries contain lithium, cobalt, and nickel, all of which are rare elements. They are mainly purchased from abroad, and stable supply faces great challenges. Lithium-ion batteries have a short lifespan, and the current recycling rate of retired lithium-ion positive active materials in China is relatively low. The most important thing in the recycling process of lithium-ion battery positive active materials is to effectively separate the positive active materials, positive current collectors, and binders. The main existing separation methods, such as dry separation, wet separation, and biological separation, have problems such as low separation rate, high cost, and long processing cycle.

[0003] To this end, we propose a device for intelligent pulse discharge vaporization of the positive current collector of retired lithium-ion batteries. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art, the present invention provides the following technical solutions: a device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode collectors, comprising an electric control box and a steel barrel, a mechanical arm is fixedly installed on the top of the electric control box, a line telescopic box located on one side of the mechanical arm is fixedly installed on the top of the electric control box, a fixed splint is provided at one end of the mechanical arm, a positive high-voltage wire harness is fixedly installed below the mechanical arm through a fixed block, one end of the positive high-voltage wire harness passes through the line telescopic box and the circuit electrical connection block inside the electric control box, the other end of the positive high-voltage wire harness passes through the fixed plate and is electrically connected to the copper plate, and a socket-type negative electrode is fixedly installed at the bottom of the steel barrel.

[0005] The socket-type negative electrode includes a base, a clamping plate and a spring. The bottom of the base is fixedly installed on the bottom of the steel drum, the clamping plate is fixedly installed on the top of the base, and the spring is fixedly installed on the opposite surfaces of the two clamping plates. The bottom of the spring is electrically connected to the negative high-voltage wire harness, and the other end of the negative high-voltage wire harness is electrically connected to the circuit block inside the electric control box. The negative high-voltage wire harness passes through the bottom of the steel drum.

[0006] Preferably, the fixed splint includes a fixed plate, a rubber insulating layer and a copper plate, one side of the fixed plate is fixedly connected to one end of the robotic arm, the copper plate is fixedly installed to the other side of the fixed plate, and the rubber insulating layer is arranged between the fixed plate and the copper plate.

[0007] Preferably, the line telescopic box includes a box body, a wire threading hole, an elastic telescopic rod and a roller. The bottom of the box body is fixedly mounted on the top of the electric control box, the wire threading hole is opened on opposite sides of the top and bottom of the box body, one end of the elastic telescopic rod is fixedly mounted on the inside of the box body, and the roller is rotatably connected to the other end of the elastic telescopic rod.

[0008] Preferably, a pulse discharge system is provided inside the electrical control box, the positive high-voltage wire harness is connected to the positive pole of the pulse discharge system, the negative high-voltage wire harness is connected to the negative pole of the pulse discharge system, and the rated voltages of the positive high-voltage wire harness and the negative high-voltage wire harness are greater than thirty kilovolts.

[0009] Preferably, the opposing surfaces of the copper plate and another fixing plate are provided with anti-slip textures.

[0010] Preferably, a water inlet is provided on the side of the steel drum, a drain outlet is provided on the bottom of the steel drum, and a wire groove is opened at the bottom of the steel drum, and a negative high-voltage wire harness is fixedly installed inside the wire groove.

[0011] Preferably, the threading hole includes a through hole, a slide groove, a connecting seat, an elastic body, a clamping wheel and a slider, the through hole is opened on one side of the top of the box body, the slide groove is opened on the side wall opposite to the through hole, one end of the elastic body is fixedly connected to one end of the through hole, the slider is integrally connected to both sides of the connecting seat, one end of the connecting seat is fixedly connected to the other end of the elastic body, the connecting seat is slidably connected to the slide groove through the slider, and the clamping wheel is rotatably connected to the other end of the connecting seat.

[0012] Preferably, the elastic telescopic rods are sequentially and invertedly arranged inside the box, and the directions of two adjacent elastic telescopic rods are opposite, and the roller is in contact and rolling connection with the positive high-voltage wire harness.

[0013] Preferably, the elastic telescopic rod includes a fixed rod, a piston plate, a movable rod, a contraction groove and an ejection spring, one end of the fixed rod is vertically fixedly connected to the inner wall of the box body, the piston plate is integrally connected to the other end of the fixed rod, the contraction groove is opened inside the movable rod, the piston plate is slidably connected to the movable groove, the bottom of the ejection spring is fixedly installed on the top of the piston plate, the top of the ejection spring is in tight contact with the top of the contraction groove, and one end of the movable rod is rotatably connected to the roller.

[0014] Preferably, two of the clamping wheels and the connecting seat are mirror-imaged in the through hole, and cover plates with square holes are provided at the bottom and top of the through hole.

[0015] Beneficial Effects

[0016] Compared with the prior art, the present invention provides a device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector, which has the following beneficial effects:

[0017] 1. This device for intelligent pulse discharge vaporization of retired lithium-ion battery positive current collector, fixes and takes out the retired lithium-ion battery positive current collector through a fixed clamp, and inserts it into the socket-type negative electrode in a steel barrel, and the copper plate fixedly installed on the fixed plate is in contact with and conductive with the retired lithium-ion battery positive current collector, and the spring in the socket-type negative electrode is also conductive with the retired lithium-ion battery positive current collector, and then a pulsed large current is conducted through the positive high-voltage wiring harness and the negative high-voltage wiring harness, and the pulsed large current flows through the positive current collector, instantly vaporizing the positive current collector, and effectively separating the positive active material, the positive current collector and the adhesive by vaporizing the positive current collector, and an intelligent design is made to make the separation more efficient and automated.

[0018] 2. A device for intelligent pulse discharge vaporization of retired lithium-ion battery positive current collectors, by setting a line contraction box above the electric control box, when the mechanical arm is extended, the positive high-voltage wire harness is pulled, and as the positive high-voltage wire harness is stretched, the positive high-voltage wire harness folded in the box is straightened, and in the process of straightening, the positive high-voltage wire harness will exert pressure on the roller and the elastic telescopic rod to contract the ejection spring, thereby causing the movable rod to retract the fixed rod into the contraction groove, when the mechanical arm is folded, the positive high-voltage wire harness will reduce the pressure on the roller and the elastic telescopic rod, and under the action of the ejection spring, the elastic telescopic rod will extend, and the excess positive high-voltage wire harness outside the line contraction box will be collected into the line contraction box through the through hole, so that the positive high-voltage wire harness and the mechanical arm always maintain the same length.

[0019] 3. This device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collectors has a clamping wheel arranged at the threading hole. When the mechanical arm is extended to tighten the positive high-voltage wire harness, the clamping wheel will shrink and squeeze the elastomer through the connecting seat, so that the positive high-voltage wire harness will not contact the side of the through hole even if it is tightened, thereby causing damage to the positive high-voltage wire harness. When the mechanical arm is folded and the positive high-voltage wire harness is relaxed, the two clamping wheels control the positive high-voltage wire harness in the middle of the through hole under the action of the elastomer, which makes it more convenient for the elastic telescopic rod in the line telescopic box to store the positive high-voltage wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 3 The structure diagram of the fixing splint of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 4 The structure diagram of the fixing splint of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 5 is a cross-sectional view of a fixing splint of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the line telescopic box of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the threading hole of the present invention;

[0027] Figure 8 It is a partial structural schematic diagram of the threading hole of the present invention;

[0028] Fig. 9 is a cross-sectional view of the elastic telescopic rod of the present invention;

[0029] Fig.10 The structure of the socket-type negative electrode of the present invention is schematically shown. Figure 1 ;

[0030] Fig.11 The structure of the socket-type negative electrode of the present invention is schematically shown. Figure 2 ;

[0031] Fig.12 It is a circuit diagram of the present invention.

[0032] In the figure: 1. electric control box; 2. mechanical arm; 3. fixed splint; 31. fixed plate; 32. rubber insulation layer; 33. copper plate; 4. steel drum; 5. line telescopic box; 51. box body; 52. threading hole; 521. through hole; 522. slide groove; 523. connecting seat; 524. elastic body; 525. tightening wheel; 526. slider; 53. elastic telescopic rod; 531. fixed rod; 532. piston plate; 533. movable rod; 534. contraction groove; 535. ejector spring; 54. roller; 6. positive high-voltage wire harness; 7. negative high-voltage wire harness; 8. socket-type negative pole; 81. base; 82. clamping plate; 83. spring; 9. water inlet; 10. drain outlet; 11. wire trough. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-12A device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector comprises an electric control box 1 and a steel barrel 4, a mechanical arm 2 is fixedly installed on the top of the electric control box 1, a line telescopic box 5 located on one side of the mechanical arm 2 is fixedly installed on the top of the electric control box 1, a fixed clamping plate 3 is provided at one end of the mechanical arm 2, a positive high-voltage wire harness 6 is fixedly installed below the mechanical arm 2 through a fixed block, one end of the positive high-voltage wire harness 6 passes through the line telescopic box 5 and the circuit electrical connection block inside the electric control box 1, the other end of the positive high-voltage wire harness 6 passes through the fixed plate 31 and is electrically connected to the copper plate 33, and a socket-type negative electrode 8 is fixedly installed at the bottom of the steel barrel 4.

[0035] The socket-type negative electrode 8 includes a base 81, a clamping plate 82 and a spring 83. The bottom of the base 81 is fixedly installed with the bottom of the steel drum 4, the clamping plate 82 is fixedly installed with the top of the base 81, and the spring 83 is fixedly installed on the opposite sides of the two clamping plates 82. The bottom of the spring 83 is electrically connected with the negative high-voltage wire harness 7, and the other end of the negative high-voltage wire harness 7 is electrically connected to the circuit inside the electric control box 1. The negative high-voltage wire harness 7 runs through the bottom of the steel drum 4, and the retired lithium-ion battery positive electrode current collector is fixedly connected to the steel drum 4 through the fixed clamping plate 3. The positive electrode 8 of the retired lithium-ion battery is taken out and inserted into the socket-type negative electrode 8 in the steel barrel 4, and the copper plate 33 fixedly installed on the fixing plate 31 is in contact with and conductive with the positive electrode collector of the retired lithium-ion battery. The spring piece 83 in the socket-type negative electrode 8 is also conductive with the positive electrode collector of the retired lithium-ion battery. Then, a large pulse current is conducted through the positive high-voltage wire harness 6 and the negative high-voltage wire harness 7. The large pulse current flows through the positive electrode collector, instantly vaporizing the positive electrode collector. By vaporizing the positive electrode collector, the positive electrode active material, the positive electrode collector and the adhesive are effectively separated.

[0036] As an embodiment of the present invention, the fixed splint 3 includes a fixed plate 31, a rubber insulating layer 32 and a copper plate 33. One side of the fixed plate 31 is fixedly connected to one end of the robotic arm 2, the copper plate 33 is fixedly installed to the other side of the fixed plate 31, and the rubber insulating layer 32 is arranged between the fixed plate 31 and the copper plate 33.

[0037] As an embodiment of the present invention, the line telescopic box 5 includes a box body 51, a threading hole 52, an elastic telescopic rod 53 and a roller 54. The bottom of the box body 51 is fixedly installed on the top of the electric control box 1, and the threading hole 52 is opened on the opposite sides of the top and bottom of the box body 51. One end of the elastic telescopic rod 53 is fixedly installed inside the box body 51, and the roller 54 is rotatably connected to the other end of the elastic telescopic rod 53. When the mechanical arm 2 is extended, the positive high-voltage wire harness 6 is pulled. As the positive high-voltage wire harness 6 is stretched, the positive high-voltage wire harness 6 folded in the box body 51 is straightened, and then During the straightening process, the positive high-voltage wire harness 6 will generate pressure on the roller 54 and the elastic telescopic rod 53 to shrink the ejection spring 535, thereby causing the movable rod 533 to retract the fixed rod 531 into the retraction groove 534. When the robotic arm 2 is folded, the positive high-voltage wire harness 6 will reduce the pressure on the roller 54 and the elastic telescopic rod 53. Under the action of the ejection spring 535, the elastic telescopic rod 53 extends, and the excess positive high-voltage wire harness 6 outside the line retraction box is collected into the line retraction box through the through hole 521, so that the positive high-voltage wire harness 6 and the robotic arm 2 always maintain the same length.

[0038] As an embodiment of the present invention, a pulse discharge system is arranged inside the electric control box 1, the positive high-voltage wire harness 6 is connected to the positive pole of the pulse discharge system, and the negative high-voltage wire harness 7 is connected to the negative pole of the pulse discharge system, and the rated voltage of the positive high-voltage wire harness 6 and the negative high-voltage wire harness 7 is greater than thirty kilovolts.

[0039] As an embodiment of the present invention, the opposing surfaces of the copper plate 33 and the other fixing plate 31 are provided with anti-slip patterns.

[0040] As an embodiment of the present invention, a water inlet 9 is provided on the side of the steel barrel 4, a drain outlet 10 is provided at the bottom of the steel barrel 4, a wire groove 11 is opened at the bottom of the steel barrel 4, and a negative high-voltage wire harness 7 is fixedly installed inside the wire groove 11.

[0041] As an embodiment of the present invention, the threading hole 52 includes a through hole 521, a slide groove 522, a connecting seat 523, an elastic body 524, a clamping wheel 525 and a slider 526. The through hole 521 is opened on one side of the top of the box body 51, the slide groove 522 is opened on the side wall opposite to the through hole 521, one end of the elastomer 524 is fixedly connected to one end of the through hole 521, the slider 526 is integrally connected to both sides of the connecting seat 523, one end of the connecting seat 523 is fixedly connected to the other end of the elastomer 524, the connecting seat 523 is slidably connected to the slide groove 522 through the slider 526, and the clamping wheel 525 is rotatably connected to the other end of the connecting seat 523.

[0042] As an embodiment of the present invention, the elastic telescopic rods 53 are sequentially and invertedly arranged inside the box body 51 , the directions of two adjacent elastic telescopic rods 53 are opposite, and the roller 54 is in contact and rolling connection with the positive high voltage wire harness 6 .

[0043] As an embodiment of the present invention, the elastic telescopic rod 53 includes a fixed rod 531, a piston plate 532, a movable rod 533, a contraction groove 534 and an ejection spring 535. One end of the fixed rod 531 is vertically fixedly connected to the inner wall of the box body 51, the piston plate 532 is integrally connected to the other end of the fixed rod 531, the contraction groove 534 is opened inside the movable rod 533, the piston plate 532 is slidably connected to the movable groove, the bottom of the ejection spring 535 is fixedly installed on the top of the piston plate 532, the top of the ejection spring 535 is in tight contact with the top of the contraction groove 534, and one end of the movable rod 533 is rotatably connected to the roller 54.

[0044] As an embodiment of the present invention, two clamping wheels 525 and connecting seats 523 are mirror-imaged in the through hole 521, and cover plates with square holes are provided at the bottom and top of the through hole 521. By arranging the clamping wheel 525 at the threading hole 52, when the mechanical arm 2 is extended and tightened, the clamping wheel 525 will shrink and then squeeze the elastomer 524 through the connecting seat 523, so that the positive high-voltage wire harness 6 will not contact the side of the through hole 521 even if it is tightened, thereby causing damage to the positive high-voltage wire harness 6. When the mechanical arm 2 is folded and the positive high-voltage wire harness 6 is relaxed, the two clamping wheels 525 control the positive high-voltage wire harness 6 in the middle of the through hole 521 under the action of the elastomer 524, which makes it more convenient for the elastic telescopic rod 53 in the line telescopic box 5 to receive the positive high-voltage wire harness 6.

[0045] It should be noted that when in use, the charging switch is turned on, and the DC power supply charges the energy storage capacitor to the target voltage. At the same time, the retired lithium-ion battery positive electrode current collector is fixedly taken out by moving and controlling the fixed clamping plate 3 through the mechanical arm 2, and inserted into the submerged socket-type negative electrode 8 in the steel barrel 4. When the mechanical arm 2 is extended, the positive high-voltage wire harness 6 is pulled. As the positive high-voltage wire harness 6 is stretched, the positive high-voltage wire harness 6 folded in the box body 51 is straightened. In the process of straightening, the positive high-voltage wire harness 6 will generate pressure on the roller 54 and the elastic telescopic rod 53 to shrink the ejection spring 535. , so that the movable rod 533 retracts the fixed rod 531 into the contraction groove 534, the tightening wheel 525 will shrink and squeeze the elastic body 524 through the connecting seat 523, so that the positive high-voltage wire harness 6 will not contact the side of the through hole 521 even if it is tightened, thereby causing damage to the positive high-voltage wire harness 6. When the mechanical arm 2 is folded, under the action of the elastic body 524, the two tightening wheels 525 control the positive high-voltage wire harness 6 in the middle of the through hole 521, making it more convenient for the elastic telescopic rod 53 in the line telescopic box 5 to receive the positive high-voltage wire harness 6. The positive high-voltage wire harness 6 will contact the roller 54 and the elastic body 524. The pressure generated by the elastic telescopic rod 53 is reduced. Under the action of the ejection spring 535, the elastic telescopic rod 53 is extended, and the excess positive high-voltage wire harness 6 outside the line contraction box is collected into the line contraction box through the through hole 521, so that the positive high-voltage wire harness 6 and the mechanical arm 2 always maintain the same length. The copper plate 33 fixedly installed on the fixing plate 31 is in contact with the retired lithium-ion battery positive electrode collector, and the spring 83 in the socket-type negative electrode 8 is also connected to the retired lithium-ion battery positive electrode collector. The discharge switch is turned on, and the energy storage capacitor discharges the loop to generate a pulsed large current. The pulsed large current flows through the positive electrode collector. The positive electrode current collector is vaporized instantly, the discharge switch is disconnected, the charging switch is turned on, and the robot arm 2 grabs the positive electrode current collector to enter the next cycle. The water inlet 9 above the steel barrel 4 is continuously injected with flowing water at a certain flow rate to ensure that the water level in the steel barrel 4 remains unchanged. The drain outlet 10 below the steel barrel 4 draws out the water in the steel barrel 4 at the same flow rate. The drawn water contains vaporized positive electrode active materials (lithium, cobalt, nickel), aluminum foil particles, and adhesives. This part of water enters the next separation and filtration link, and then the positive electrode active materials are sorted out, thus realizing the separation and recovery of the positive electrode active materials.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector, comprising an electric control box (1) and a steel barrel (4), characterized in that: A mechanical arm (2) is fixedly mounted on the top of the electric control box (1), a line expansion box (5) located on one side of the mechanical arm (2) is fixedly mounted on the top of the electric control box (1), a fixed clamping plate (3) is provided at one end of the mechanical arm (2), a positive high-voltage wire harness (6) is fixedly mounted below the mechanical arm (2) via a fixed block, one end of the positive high-voltage wire harness (6) passes through the line expansion box (5) and the circuit electrical connection block inside the electric control box (1), the other end of the positive high-voltage wire harness (6) passes through the fixed plate (31) and is electrically connected to the copper plate (33), and a socket-type negative electrode (8) is fixedly mounted at the bottom of the steel barrel (4); The socket-type negative electrode (8) comprises a base (81), a clamping plate (82) and a spring (83); the bottom of the base (81) is fixedly mounted on the bottom of the steel drum (4); the clamping plate (82) is fixedly mounted on the top of the base (81); the spring (83) is fixedly mounted on opposite surfaces of the two clamping plates (82); the bottom of the spring (83) is electrically connected to a negative high-voltage wire harness (7); the other end of the negative high-voltage wire harness (7) is electrically connected to a circuit block inside the electric control box (1); and the negative high-voltage wire harness (7) passes through the bottom of the steel drum (4); The fixed clamping plate (3) comprises a fixed plate (31), a rubber insulating layer (32) and a copper plate (33); one side of the fixed plate (31) is fixedly connected to one end of the mechanical arm (2); the copper plate (33) is fixedly mounted to the other side of the fixed plate (31); and the rubber insulating layer (32) is arranged between the fixed plate (31) and the copper plate (33).

2. The device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector according to claim 1, characterized in that: The line telescopic box (5) comprises a box body (51), a threading hole (52), an elastic telescopic rod (53) and a roller (54); the bottom of the box body (51) is fixedly mounted on the top of the electric control box (1); the threading hole (52) is provided on opposite sides of the top and bottom of the box body (51); one end of the elastic telescopic rod (53) is fixedly mounted inside the box body (51); and the roller (54) is rotatably connected to the other end of the elastic telescopic rod (53).

3. The device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector according to claim 1, characterized in that: A pulse discharge system is arranged inside the electric control box (1); the positive high-voltage wire harness (6) is connected to the positive pole of the pulse discharge system; the negative high-voltage wire harness (7) is connected to the negative pole of the pulse discharge system; and the rated voltages of the positive high-voltage wire harness (6) and the negative high-voltage wire harness (7) are greater than thirty kilovolts.

4. The device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector according to claim 1, characterized in that: The opposing surfaces of the copper plate (33) and the other fixing plate (31) are provided with anti-slip patterns.

5. The device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector according to claim 1, characterized in that: A water inlet (9) is provided on the side of the steel drum (4), a water outlet (10) is provided on the bottom of the steel drum (4), and a wire groove (11) is provided on the bottom of the steel drum (4), wherein a negative high-voltage wire harness (7) is fixedly installed inside the wire groove (11).

6. The device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector according to claim 2, characterized in that: The threading hole (52) comprises a through hole (521), a slide groove (522), a connecting seat (523), an elastic body (524), a clamping wheel (525) and a slider (526); the through hole (521) is provided on one side of the top of the box body (51); the slide groove (522) is provided on a side wall opposite to the through hole (521); one end of the elastic body (524) is fixedly connected to one end of the through hole (521); the slider (526) is integrally connected to two sides of the connecting seat (523); one end of the connecting seat (523) is fixedly connected to the other end of the elastic body (524); the connecting seat (523) is slidably connected to the slide groove (522) via the slider (526); and the clamping wheel (525) is rotatably connected to the other end of the connecting seat (523).

7. The device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector according to claim 2, characterized in that: The elastic telescopic rods (53) are sequentially arranged upside down inside the box (51), with two adjacent elastic telescopic rods (53) in opposite directions, and the roller (54) is in contact and rolling connection with the positive high-voltage wire harness (6).

8. The device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector according to claim 7, characterized in that: The elastic telescopic rod (53) comprises a fixed rod (531), a piston plate (532), a movable rod (533), a contraction groove (534) and an ejection spring (535); one end of the fixed rod (531) is vertically fixedly connected to the inner wall of the box body (51); the piston plate (532) is integrally connected to the other end of the fixed rod (531); the contraction groove (534) is provided inside the movable rod (533); the piston plate (532) is slidably connected to the movable groove; the bottom of the ejection spring (535) is fixedly mounted to the top of the piston plate (532); the top of the ejection spring (535) is in tight contact with the top of the contraction groove (534); and one end of the movable rod (533) is rotatably connected to the roller (54).

9. The device for intelligent pulse discharge vaporization of retired lithium-ion battery positive electrode current collector according to claim 6, characterized in that: Two of the clamping wheels (525) and the connecting seat (523) are arranged in a mirror-image manner in the through hole (521), and a cover plate with a square hole is arranged at the bottom and top of the through hole (521).

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