A thermal cutting mechanism for dismantling scrapped power lithium battery cells

Abstract

This invention relates to the field of waste soft-pack lithium battery recycling technology, specifically a thermal cutting mechanism for dismantling waste power lithium battery cells. The mechanism includes a frame, a thermal cutting blade, and a driving device. The frame has a support portion for supporting the waste soft-pack lithium battery. The thermal cutting blade has a cross-shaped structure and is positioned above the support portion. The driving device is mounted on the frame and drives the thermal cutting blade to move along a first direction, which is the direction towards or away from the waste soft-pack lithium battery. This invention uses a cross-shaped thermal cutting blade to cut a cross-shaped kerf on one surface of the waste soft-pack lithium battery, creating a large opening that allows for easy removal of the internal battery cells. Compared to existing technologies, this invention eliminates the need for multiple cuts; a single cut is sufficient to remove the battery cells from the aluminum-plastic film, improving the dismantling efficiency of waste soft-pack lithium batteries.

Description

Technical Field

[0001] This invention relates to the field of waste soft-pack lithium battery recycling technology, specifically a thermal cutting mechanism for dismantling waste power lithium battery cells. Background Technology

[0002] In the construction of pouch lithium batteries, the aluminum-plastic film plays a crucial role as the external encapsulation material. It not only protects the internal cells from external environmental influences but also ensures the battery's safety and long-term stability. However, during the dismantling of end-of-life pouch lithium batteries, the aluminum-plastic film needs to be effectively removed from the cell's periphery to facilitate the recycling of the cell (composed of positive and negative electrode plates and separators). Some existing dismantling equipment is equipped with a thermal cutting mechanism designed to precisely cut the aluminum-plastic film outside the cell using heated cutting, thus facilitating the subsequent removal of the cell.

[0003] Traditional thermal cutting mechanisms typically employ a single-blade design, requiring multiple cuts to create a sufficiently large opening in the lithium battery for easy cell removal. While this approach meets lithium battery dismantling requirements to some extent, it limits the efficiency of the dismantling process. To address these issues, this invention proposes a highly efficient thermal cutting mechanism for dismantling end-of-life power lithium battery cells. Summary of the Invention

[0004] The purpose of this invention is to provide a thermal cutting mechanism for dismantling scrapped power lithium battery cells, which solves the problems mentioned in the background art.

[0005] This invention is achieved through the following technical solution:

[0006] A thermal cutting mechanism for dismantling scrapped power lithium battery cells includes a frame, a thermal cutting blade, and a drive device. The frame has a support portion for supporting the scrapped soft-pack lithium battery. The thermal cutting blade has a cross-shaped structure and is located above the support portion. The drive device is mounted on the frame and is used to drive the thermal cutting blade to move along a first direction, which is the direction towards or away from the scrapped soft-pack lithium battery.

[0007] Optionally, the hot cutting mechanism for dismantling waste power lithium battery cells further includes a blade holder and four first suction cups, the four first suction cups and the hot cutting blade are all mounted on the blade holder; and the four first suction cups are distributed around the intersection of the hot cutting blades in the middle, and the driving device is used to drive the blade holder to move along the first direction.

[0008] Optionally, the first suction cup is slidably connected to the cutter head holder along a second direction perpendicular to the first direction, and the cutter head holder is provided with a second driving device for driving the first suction cup to slide along the second direction.

[0009] Optionally, the hot cutting mechanism for dismantling scrapped power lithium battery cells further includes a tab cutter, which is fixed to the cutter head frame and can cut off the tabs of the scrapped soft-pack lithium battery when the cutter head frame moves in a first direction.

[0010] Optionally, the hot cutting mechanism for dismantling scrapped power lithium battery cells further includes at least one second suction cup, which is disposed between the four first suction cups. The second suction cup is movably connected to the first suction cup via a connecting rod, so that when the second driving device drives the first suction cup to move along the second direction, it simultaneously drives the second suction cup to move along the first direction.

[0011] Optionally, four second suction cups are provided, and the four second suction cups are distributed around the intersection of the hot cutting blades.

[0012] Optionally, the cutter head holder is provided with an elongated groove arranged along the second direction, and a slider is slidably disposed in the groove, with the first suction cup mounted on the slider.

[0013] Optionally, a first elastic element is provided between the second suction cup and the slider, the first elastic element being used to provide elastic force to the second suction cup along the first direction.

[0014] Optionally, a support member is fixedly provided on the support part. The support member has a hollow plate-like structure and a support surface for supporting the waste soft-pack lithium battery. Adsorption holes are provided on the support surface. The support member is also provided with an air nozzle suitable for connecting a vacuum pump.

[0015] Optionally, the support member is provided with a fixed pressure block for supporting the tabs of the scrapped soft-pack lithium battery, and a movable pressure block is elastically connected to one side of the tab cutter through a second elastic element. The fixed pressure block and the movable pressure block are arranged opposite to each other along the first direction. When the cutter head moves along the first direction, the movable pressure block and the tab cutter contact the tabs of the scrapped soft-pack lithium battery one after the other.

[0016] Optionally, the fixed pressure block is made of insulating material, and two movable pressure blocks are provided and made of conductive material. The thermal cutting blade is heated by an electric heating element. When the two movable pressure blocks are in contact with the positive and negative tabs of the scrapped soft-pack lithium battery respectively, they form a first heating closed circuit between the scrapped soft-pack lithium battery and the electric heating element.

[0017] Optionally, the hot cutting mechanism for dismantling scrapped power lithium battery cells further includes a switching device and a backup power supply. The switching device is configured to automatically connect the backup power supply and the heating element to form a second heating closed loop when the power of the scrapped soft-pack lithium battery is insufficient.

[0018] Optionally, the switching device includes a bracket and an electromagnet, a third elastic element, a conductive element, and two pairs of conductive contacts mounted on the bracket. The two ends of the coil of the electromagnet are electrically connected to the two movable pressure blocks respectively. The two pairs of conductive contacts are arranged at intervals along a third direction. The conductive element is a ferromagnetic conductor and is elastically set with the electromagnet along a third direction through the third elastic element. When the conductive element moves along the third direction, it turns on the first pair of conductive contacts or the second pair of conductive contacts.

[0019] Optionally, the conductive element includes a plate made of ferromagnetic material and a conductor fixedly connected to the plate. The conductor is elastic and its two ends are bent to form a wavy structure that elastically resists the conductive contact. A silver conductive ball is fixedly disposed at the position where the wavy structure contacts the conductive contact.

[0020] Optionally, a control switch is provided on the second heating closed loop.

[0021] Compared with the prior art, the present invention provides a thermal cutting mechanism for dismantling waste power lithium battery cells, which has the following beneficial effects:

[0022] 1. This invention utilizes a cross-shaped thermal cutting blade to cut a cross-shaped kerf on one surface of a discarded soft-pack lithium battery, creating a large opening through which the internal battery cell can be easily removed. Compared to existing technologies, this invention eliminates the need for multiple cuts; a single cut is sufficient to remove the battery cell from the aluminum-plastic film, thus improving the dismantling efficiency of discarded soft-pack lithium batteries.

[0023] 2. In this invention, the first suction cup and the second suction cup are linked by a connecting rod. When the second driving device drives the second suction cup to move downward to lift and adsorb the battery cell, the four first suction cups move outward along the radial direction of the blade holder under the action of the connecting rod. At this time, the downward moving second suction cup can just extend into the opening formed between the four triangular areas and adsorb the battery cell.

[0024] 3. This invention can utilize the residual electrical energy of discarded soft-pack lithium batteries to power the heating element. After receiving power, the heating element heats up and heats the thermal cutting blade, thus making full use of the residual electrical energy of the discarded soft-pack lithium batteries.

[0025] 4. The present invention can automatically select the first heating closed circuit or the second heating closed circuit to heat the thermal cutting blade according to the energy storage status of the scrapped soft-pack lithium battery, thus making it suitable for the dismantling of scrapped soft-pack lithium batteries containing different amounts of energy. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the bottom structure of the cutter head holder of the present invention;

[0030] Figure 5 For the present invention Figure 3 A schematic diagram of a partial structure;

[0031] Figure 6 This is a schematic diagram of the switching device structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the connection structure between the electrode cutter and the movable pressure block of the present invention;

[0033] Figure 8 This is a schematic diagram of the thermal cutting blade structure of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the first heating closed loop and the second heating closed loop of the present invention;

[0035] Figure 10 This is a schematic diagram of the structure of a scrapped soft-pack lithium battery after cutting.

[0036] In the diagram: 1. Frame; 2. Thermal cutting blade; 3. Drive unit one; 4. Support unit; 5. Waste soft-pack lithium battery; 500. Aluminum-plastic film; 501. Tab; 502. Blade edge; 503. Triangular area; 504. Battery cell; 6. First suction cup; 7. Second suction cup; 8. Blade holder; 9. Drive unit two; 10. Tab cutter; 11. Connecting rod; 12. Circular disc; 13. Connecting nozzle; 14. Slide groove; 15. Slider; 16. First elastic element; 17. Second elastic element; 18. Third elastic element; 19. Supporting component; 190. Supporting surface; 191. Adsorption hole; 192. Air nozzle; 20. Fixed pressure block; 21. Movable pressure block; 22. Connecting piece; 23. Connecting rod; 24. Limiting head; 25. Heating element; 26. Backup power supply; 27. Switching device; 270. Bracket; 271. Electromagnet; 272. First pair of conductive contacts; 273. Second pair of conductive contacts; 274. Conductive element; 2740. Plate; 2741. Conductor; 2742. Conductive ball; 275. Control switch. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example: Please refer to Figures 1 to 10 According to an embodiment of the present invention, a thermal cutting mechanism for dismantling scrapped power lithium battery cells is provided, comprising a frame 1, a thermal cutting blade 2, and a driving device 3. The frame 1 has a support portion 4 for supporting scrapped soft-pack lithium batteries 5; the thermal cutting blade 2 has a cross-shaped structure and is disposed above the support portion 4; the driving device 3 is mounted on the top of the frame 1 and is used to drive the thermal cutting blade 2 to move along a first direction, which is a direction towards or away from the scrapped soft-pack lithium battery 5. Specifically, in this example, the bottom of the frame 1 serves as the support portion 4. The driving device 3 is a cylinder, the cylinder body of which is fixed to the top of the frame 1, and the output end of the cylinder is connected to the thermal cutting blade 2.

[0039] When using the above solution, the cross-shaped thermal cutting blade 2 can cut a groove on one of the surfaces to be cut of the discarded soft-pack lithium battery 5. Figure 10The cross-shaped cutting edge 502 shown divides the surface to be cut into four triangular regions 503. After lifting the aluminum-plastic film 500 of these four triangular regions 503, a large opening is formed on the surface to be cut, through which the internal battery cell 504 can be easily removed. Obviously, in this solution, multiple cuts are not required; a single cut is sufficient to easily remove the battery cell 504 of the scrapped soft-pack lithium battery 5 from the aluminum-plastic film 500, thus improving the dismantling efficiency of the scrapped soft-pack lithium battery 5.

[0040] In this exemplary embodiment, the thermal cutting mechanism for dismantling the waste power lithium battery cell 504 further includes a blade holder 8 and four first suction cups 6. All four first suction cups 6 are vacuum suction cups, and both the four first suction cups 6 and the thermal cutting blade 2 are mounted on the blade holder 8. The four first suction cups 6 are distributed around the central intersection of the thermal cutting blade 2. The driving device 3 is used to drive the blade holder 8 to move along a first direction. It is understood that the blade holder 8 serves as the mounting base for the thermal cutting blade 2 and the four first suction cups 6, enabling the driving device 3 to simultaneously drive the thermal cutting blade 2 and the four first suction cups 6 to move along the first direction when driving the blade holder 8 to move along the first direction. The four first suction cups 6 correspond one-to-one with the four triangular areas 503 on the surface to be cut of the scrapped soft-pack lithium battery 5. With this setup, when the thermal cutting blade 2 completes the cutting of the surface, the four suction cups can hold the four triangular areas 503 on the surface to be cut, and under the drive of the drive device 3, they can move away from the soft-pack lithium battery, thereby successfully lifting the aluminum-plastic film 500 of the four triangular areas 503 to facilitate the subsequent removal of the battery cell 504.

[0041] like Figure 5 , Figure 10 As shown in this exemplary embodiment, the first suction cup 6 is slidably connected to the cutter head holder 8 along a second direction perpendicular to the first direction. Figure 5 The middle direction is up and down, and the second direction is... Figure 5 The radial direction of the cutter head holder 8 is shown in the middle. The cutter head holder 8 is equipped with a second driving device 9 for driving the first suction cup 6 to slide along the second direction. Specifically, in this example, the second driving device 9 is a cylinder. With this configuration, when the first suction cup 6 picks up the aluminum-plastic film 500 and moves upward, the second driving device 9 simultaneously drives the first suction cup 6 to move outward along the radial direction of the cutter head holder 8, thereby causing the four first suction cups 6 to move away from each other. This expands the opening of the aluminum-plastic film 500 in the four triangular areas 503, ensuring that after the four triangular areas 503 are opened, a sufficiently large opening is formed on the cutting surface to facilitate the removal of the battery cell 504.

[0042] like Figure 1 , Figure 5 , Figure 7As shown in this exemplary embodiment, the thermal cutting mechanism for dismantling the scrapped power lithium battery cell 504 further includes a tab cutter 10. The tab cutter 10 is fixed to the cutter head holder 8, and the tab cutter 10 can cut the tabs 501 of the scrapped soft-pack lithium battery 5 when the cutter head holder 8 moves in the first direction. By setting the tab cutter 10, when the thermal cutting blade 2 cuts the aluminum-plastic film 500 on the outside of the scrapped soft-pack lithium battery 5, the tab cutter 10 is used to cut the tabs 501 of the scrapped soft-pack lithium battery 5. The position where the tabs 501 are cut is the connection position between the tabs 501 and the aluminum-plastic film 500. After the tabs 501 are cut, the cell 504 can be removed more smoothly.

[0043] like Figure 5 , Figure 10 As shown in this exemplary embodiment, the thermal cutting mechanism for dismantling the scrapped power lithium battery cell 504 further includes at least one second suction cup 7. The at least one second suction cup 7 is disposed between four first suction cups 6. The second suction cup 7 and the first suction cups 6 are movably connected by a connecting rod 11, so that the driving device 9 synchronously drives the second suction cup 7 to move in the first direction when driving the first suction cup 6 to move in the second direction. Specifically, in this example, four second suction cups 7 are provided, distributed around the perimeter of the central intersection position of the thermal cutting blade 2. The four second suction cups 7 are connected to a hollow circular disk 12, and the circular disk 12 is provided with a connecting nozzle 13 for connecting to an external vacuum device. The first suction cup 6 and the second suction cup 7 are linked by a connecting rod 11. When the driving device 29 drives the second suction cup 7 to move downward to lift and adsorb the battery cell 504, the four first suction cups 6 move outward along the radial direction of the cutter head 8 under the action of the connecting rod 11. At this time, the downward moving second suction cup 7 can just extend into the opening formed between the four triangular areas 503 and adsorb the battery cell 504.

[0044] like Figure 5 As shown, in order to enable the first suction cup 6 to slide and connect to the cutter head holder 8 along a second direction perpendicular to the first direction, in this exemplary embodiment, the cutter head holder 8 is provided with a long strip-shaped groove 14 arranged along the second direction, and a slider 15 is slidably disposed in the groove 14, and the first suction cup 6 is mounted on the slider 15.

[0045] like Figure 5 As shown in this exemplary embodiment, a first elastic element 16 is provided between the second suction cup 7 and the slider 15. The first elastic element 16 is used to provide elastic force to the second suction cup 7 along the first direction. The first suction cup 6 is elastically disposed on the slider 15 along the first direction by the first elastic element 16, so that the first suction cup 6 has a certain buffer space along the first direction when it comes into contact with the aluminum-plastic film 500, so as to reduce the possibility of the first suction cup 6 being damaged by collision.

[0046] like Figure 3As shown in this exemplary embodiment, a support member 19 is fixedly disposed on the support part 4. The support member 19 has a hollow plate-like structure and a support surface 190 for supporting the waste soft-pack lithium battery 5. The support surface 190 is provided with adsorption holes 191, and the support member 19 is also provided with a nozzle 192 suitable for connecting to a vacuum pump. In use, the waste soft-pack lithium battery 5 is placed on the support surface 190 of the support member 19 and the adsorption holes 191 are covered. Then, the vacuum pump connected to the support member 19 is started, and the waste soft-pack lithium battery 5 can be adsorbed and fixed on the support member 19 so that the aluminum-plastic film 500 of the waste soft-pack lithium battery 5 can be cut and the battery cell 504 can be removed.

[0047] like Figure 7 As shown, in this exemplary embodiment, a fixing block 20 for supporting the tabs 501 of the discarded soft-pack lithium battery 5 is provided on the support member 19, and a movable pressing block 21 is elastically connected to one side of the tab cutter 10 through a second elastic element 17. Specifically, as shown... Figure 7 As shown, a connecting piece 22 is fixedly installed on the right side of the tab cutter 10, and a connecting rod 23 is fixedly installed on the top of the movable pressure block 21. The end of the connecting rod 23 away from the movable pressure block 21 passes through the connecting piece 22 and is fixedly connected to the limit head 24. The second elastic element 17 is a compression spring and is sleeved on the connecting rod 23 located between the movable pressure block 21 and the connecting piece 22. The fixed pressure block 20 and the movable pressure block 21 are arranged opposite to each other along the first direction. When the cutter head 8 moves along the first direction, the movable pressure block 21 and the tab cutter 10 successively contact the tabs 501 of the waste soft-pack lithium battery 5. With this configuration, when the drive device 3 drives the cutter head 8 to move downward, the movable pressure block 21 will first contact the tab 501 and elastically press the tab 501 against the fixed pressure block 20. This can pre-fix the tab 501 and ensure that the tab cutter 10, which continues to move downward, can smoothly cut the tab 501.

[0048] Generally speaking, discarded soft-pack lithium batteries contain a certain amount of electrical energy when disassembled. In order to make full use of this remaining electrical energy, such as... Figure 6 and Figure 9 As shown in this exemplary embodiment, the fixed pressure block 20 is made of insulating material, and two movable pressure blocks 21 are provided and made of conductive material. The thermal cutting blade 2 is heated by the heating element 25. When the two movable pressure blocks 21 are in contact with the positive and negative tabs 501 of the discarded soft-pack lithium battery 5, respectively, they form a first heating closed circuit between the discarded soft-pack lithium battery 5 and the heating element 25 through wires. Specifically, in this example, the heating element 25 is a heating wire embedded in the blade position of the thermal cutting blade 2. With this configuration, the remaining electrical energy of the discarded soft-pack lithium battery 5 can be used to power the heating element 25. After being energized, the heating element 25 heats up and heats the thermal cutting blade 2, thus making full use of the remaining electrical energy of the discarded soft-pack lithium battery 5.

[0049] like Figure 6 and Figure 9 As shown in this exemplary embodiment, the thermal cutting mechanism for dismantling the scrapped lithium-ion battery cell 504 further includes a switching device 27 and a backup power supply 26. The switching device 27 is configured to automatically connect the backup power supply 26 and the heating element 25 to form a second heating closed loop when the power of the scrapped soft-pack lithium battery 5 is insufficient. Specifically, the backup power supply 26 can be AC ​​mains power. With this configuration, the thermal cutting mechanism for dismantling the scrapped lithium-ion battery cell 504 can automatically select either the first heating closed loop or the second heating closed loop to heat the thermal cutting blade 2 according to the power storage status of the scrapped soft-pack lithium battery 5, thereby making it suitable for dismantling scrapped soft-pack lithium batteries 5 containing different levels of power.

[0050] like Figure 6 and Figure 9 As shown in this exemplary embodiment, the switching device 27 includes a bracket 270 and an electromagnet 271, a third elastic element 18, a conductive element 274, and two pairs of conductive contacts mounted on the bracket 270. The two ends of the coil of the electromagnet 271 are electrically connected to two movable pressure blocks 21, respectively. The two pairs of conductive contacts are arranged at intervals along a third direction. Figure 6 In the vertical direction, the conductive element 274 is a ferromagnetic conductor 2741 (which can be attracted by a magnet and conduct electricity) and is elastically set along the third direction with the electromagnet 271 through the third elastic element 18. When the conductive element 274 moves along the third direction, it connects the first pair of conductive contacts 272 or the second pair of conductive contacts 273. With this configuration, when the movable pressure block 21 is not in contact with the tab 501 of the discarded soft-pack lithium battery 5, or is in contact with the tab 501 of the discarded soft-pack lithium battery 5 but the remaining power of the discarded soft-pack lithium battery 5 is insufficient, the conductive element 274 conducts the first pair of conductive contacts 272, and the second heating closed circuit is in a closed state at this time, and the backup power supply 26 supplies power to the heating element 25; when the movable pressure block 21 is in contact with the tab 501 of the discarded soft-pack lithium battery 5 and the remaining power of the discarded soft-pack lithium battery 5 is sufficient, the electromagnet 271 is energized and generates magnetism. The magnetic electromagnet 271 generates magnetic force on the conductive element 274, and the conductive element 274 moves from the position of the first pair of conductive contacts 272 to the position of the second pair of conductive contacts 273 under the action of magnetic force, and conducts the second pair of conductive contacts 273. At this time, the second heating closed circuit automatically switches to the first heating closed circuit, and uses the remaining power of the discarded soft-pack lithium battery 5 to supply power to the heating element 25. In this way, the purpose of automatically selecting the first heating closed loop or the second heating closed loop to heat the thermal cutting blade 2 can be achieved based on the energy storage status of the scrapped soft-pack lithium battery 5.

[0051] like Figure 6 and Figure 9As shown in this exemplary embodiment, the conductive element 274 includes a plate 2740 made of ferromagnetic material and a conductor 2741 fixedly connected to the plate 2740. The conductor 2741 is elastic and its two ends are bent to form a wavy structure that resists the elasticity of the conductive contacts. A silver conductive ball 2742 is fixedly disposed at the position where the wavy structure contacts the conductive contacts. The ferromagnetic plate 2740 can be attracted by the electromagnet 271 after being energized, thereby driving the conductor 2741 to move between the two pairs of conductive contacts. The wavy structure of the conductor 2741 can ensure that a good conductive contact is formed between the conductive ball 2742 and the conductive contacts.

[0052] like Figure 9 As shown, in this exemplary embodiment, a control switch 275 is provided on the second heating closed loop. The control switch 275 is used to control the on / off state of the second heating closed loop, so that the second heating closed loop can be cut off when the heating element 25 is not in use.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermal cutting mechanism for dismantling scrapped power lithium battery cells, characterized in that, include: A frame (1) has a support (4) for supporting the waste soft-pack lithium battery (5); A hot cutting blade (2) is arranged in a cross shape and positioned above the support (4); And a drive device (3) is mounted on the frame (1) and used to drive the thermal cutting blade (2) to move in a first direction, the first direction being the direction that is closer to or farther away from the scrapped soft-pack lithium battery (5).

2. The hot-cutting mechanism for dismantling scrapped power lithium battery cells according to claim 1, characterized in that: It also includes a blade holder (8) and four first suction cups (6), the four first suction cups (6) and the thermal cutting blade (2) are all mounted on the blade holder (8); and the four first suction cups (6) are distributed around the intersection of the middle position of the thermal cutting blade (2), and the driving device (3) is used to drive the blade holder (8) to move along the first direction.

3. The thermal cutting mechanism for dismantling scrapped power lithium battery cells according to claim 2, characterized in that: The first suction cup (6) is slidably connected to the cutter head holder (8) along a second direction perpendicular to the first direction. The cutter head holder (8) is provided with a second driving device (9) for driving the first suction cup (6) to slide along the second direction.

4. The thermal cutting mechanism for dismantling scrapped power lithium battery cells according to claim 3, characterized in that: It also includes a tab (501) cutter, which is fixed to the cutter head holder (8) and is capable of cutting off the tabs (501) of the scrapped soft-pack lithium battery (5) when the cutter head holder (8) moves in a first direction.

5. The thermal cutting mechanism for dismantling scrapped power lithium battery cells according to claim 4, characterized in that: It also includes at least one second suction cup (7), which is disposed between the four first suction cups (6). The second suction cup (7) is movably connected to the first suction cup (6) through a connecting rod (11) so that when the second driving device (9) drives the first suction cup (6) to move along the second direction, it synchronously drives the second suction cup (7) to move along the first direction.

6. The thermal cutting mechanism for dismantling scrapped power lithium battery cells according to claim 5, characterized in that: There are four second suction cups (7), which are distributed around the intersection of the hot cutting blade (2).

7. The thermal cutting mechanism for dismantling scrapped power lithium battery cells according to claim 6, characterized in that: The cutter head holder (8) is provided with a long strip-shaped slide groove (14) arranged along the second direction. A slider (15) is slidably arranged in the slide groove (14), and the first suction cup (6) is installed on the slider (15).

8. The thermal cutting mechanism for dismantling scrapped power lithium battery cells according to claim 7, characterized in that: A first elastic element (16) is provided between the second suction cup (7) and the slider (15), and the first elastic element (16) is used to provide the second suction cup (7) with elastic force along the first direction.

9. The hot-cutting mechanism for dismantling scrapped power lithium battery cells according to any one of claims 1 to 8, characterized in that: A support member (19) is fixedly provided on the support part (4). The support member (19) has a hollow plate structure. The support member (19) has a support surface (190) for supporting the waste soft-pack lithium battery (5). An adsorption hole (191) is provided on the support surface (190). The support member (19) is also provided with a nozzle (192) suitable for connecting a vacuum pump.

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