Lithium ion battery shell decomposition device

Abstract

The invention discloses a lithium ion battery shell decomposition device, and relates to the technical field of battery recovery treatment. The device comprises a main frame, a supporting plate is fixedly connected to the middle of the main frame, two discharging openings are formed in one side of the supporting plate, and a collecting barrel is placed at the bottom of the main frame; the supporting plate is provided with an overturning mechanism between the two blanking ports, one side of the overturning mechanism is provided with a plugging piece, one side of the main frame is provided with a liquid suction mechanism, the top of the main frame is provided with a shifting mechanism, one side of the shifting mechanism is provided with a drilling and cutting machine, the bottom end of the drilling and cutting machine is provided with a drilling and cutting piece, and the top of the main frame is movably connected with a sealing door in the vertical direction; a main controller is installed on one side of the main frame. Through cooperation of the turnover mechanism, the plugging piece and the liquid suction mechanism, electrolyte is collected before the lithium battery shell is decomposed, then the lithium battery is subjected to multi-angle cutting, and the function of orderly and efficiently decomposing the lithium battery shell is achieved.

Description

Technical Field

[0001] This invention relates to the field of battery processing technology, and more specifically to a lithium-ion battery casing decomposition device. Background Technology

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. To avoid environmental pollution and resource waste caused by direct disposal after use, lithium batteries usually need to be recycled. Appropriate decomposition equipment is required in the recycling and dismantling of waste lithium batteries.

[0003] The patent specification with announcement number CN113764761B discloses a lithium battery pack disassembly and recycling device, including a box body, a material discharge port on the side wall of the box body, a partition inside the box body, a disassembly mechanism inside the box body, and a material receiving mechanism below the partition inside the box body. The disassembly mechanism includes a moving platform set on one side of the material discharge port, a horizontal slide rail fixed on the top of the box body, a slider installed on the horizontal slide rail, a drive mechanism on the box body that drives the moving platform and slider to move horizontally, two sets of drilling and cutting mechanisms fixed on the top of the box body, the drilling and cutting mechanisms being respectively set on both sides of the moving platform, a pushing mechanism fixed inside the box body, and a material discharge port below the pushing mechanism. This type of recycling device uses a drilling and cutting mechanism to cut off both ends of the battery pack casing, and then uses a pushing mechanism to push the battery out of the casing to separate the casing from the battery. The shortcoming of this technical solution is that it cuts the ends of the battery pack in order not to damage the battery cell and its internal electrolyte. It separates the battery cell by pushing it out. However, the electrolyte is the main part of lithium battery pollution. The electrolyte inside the pushed-out battery cell still needs to be removed. That is, this recycling device cannot recycle the electrolyte inside the battery cell.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a lithium-ion battery casing decomposition device, and the technical problem to be solved is as follows: existing lithium battery casing decomposition devices cannot effectively clean the electrolyte inside the lithium battery.

[0006] The objective of this invention can be achieved through the following technical solutions: A lithium-ion battery casing disassembly device includes a main frame, a support plate fixedly connected to the middle of the main frame, two discharge ports on one side of the support plate, and a collection cylinder placed at the bottom of the main frame. A flipping mechanism is installed between the two discharge ports on the support plate. The flipping mechanism is used to clamp and flip the lithium battery. A sealing component is provided on one side of the flipping mechanism to prevent electrolyte leakage during lithium battery flipping. A liquid suction mechanism is provided on one side of the main frame to absorb the electrolyte after the lithium battery flips. A shifting mechanism is installed at the top of the main frame, and a drilling and cutting machine is installed on one side of the shifting mechanism. A drilling and cutting component is installed at the bottom of the drilling and cutting machine for drilling and cutting the lithium battery. A sealing door is movably connected vertically to the top of the main frame. A main controller is installed on one side of the main frame.

[0007] As a further aspect of the present invention: the flipping mechanism includes a support frame fixedly connected to the support plate, a rotating motor is installed on one side of the top of the support frame, a clamping plate is fixedly connected to the output end of the rotating motor, and two clamping arms are provided on both sides and one end of the clamping plate, with a battery body clamped between each clamping arm, and each clamping arm and the battery body are interference fit.

[0008] As a further aspect of the present invention: the sealing component includes a cylinder installed on one side of the clamping plate, the end of the cylinder telescopic rod is rotatably connected to a connecting rod, the end of the connecting rod is fixedly connected to a sealing rod, and the top of the sealing rod is U-shaped.

[0009] As a further aspect of the present invention: the liquid suction mechanism includes a liquid pump installed on one side of the support plate, the liquid pump being used to draw electrolyte from inside the battery body after it is flipped over, and a liquid collection bottle is installed on one side of the main frame, the liquid pump being connected to the liquid collection bottle.

[0010] As a further embodiment of the present invention: the displacement mechanism includes a longitudinal displacement platform installed on the top of the support plate, a displacement motor 1 installed on one side of the longitudinal displacement platform, a transverse displacement platform installed on the top of the longitudinal displacement platform, a displacement motor 2 installed on one side of the transverse displacement platform, a vertical displacement platform installed on one side of the transverse displacement platform, a displacement motor 3 installed on the top of the vertical displacement platform, and the drilling and cutting machine installed on one side of the vertical displacement platform.

[0011] As a further aspect of the present invention: the drilling and cutting component includes a drill rod installed at the output end of the drilling and cutting machine, a cutting blade is fixedly connected to the middle of the drill rod, the cutting depth of the cutting blade is equal to the thickness of the battery body, and a pusher plate is installed on the side of the drilling and cutting machine near the flipping mechanism.

[0012] As a further embodiment of the present invention: slide rails are installed on both sides of the top of the main frame, and two sliders are slidably connected to the outside of the slide rails. The two sides of the sealing door are fixedly connected to the sliders on the adjacent sides. A guide rod is fixedly connected to one side of the top of the sealing door. A guide cylinder is fixedly connected to the top of the main frame to the guide rod. The guide rod is inserted into the guide cylinder. A handle is fixedly connected to the outside of the bottom of the sealing door.

[0013] As a further aspect of the present invention: the bottom periphery of the main frame is hollow, and multiple baffles are fixedly connected to the top layer, and the sealing door is transparent.

[0014] As a further aspect of the present invention: the bottom surface of the support plate is adapted to two material discharge ports and is fixedly connected to guide hoppers, the bottom surface of the guide hoppers is open and located directly above the collection cylinder.

[0015] The beneficial effects of this invention are: 1. By installing a flipping mechanism in the middle of the main frame and a shifting mechanism with a drilling machine at the top of the flipping mechanism, and at the same time, setting up a liquid suction mechanism with a collection bottle to adapt to the flipping mechanism, before the lithium battery is decomposed, the bottom of the lithium battery can be rotated to a high position to drill a hole to facilitate the discharge of electrolyte. Then, the hole is sealed with a sealing component, and the hole is rotated to a downward position and connected to the liquid pump of the liquid suction mechanism. Under the dual action of gravity and liquid pump suction, the electrolyte is completely collected into the collection bottle, thereby realizing the convenient recycling of electrolyte in the lithium battery. 2. After recovering the electrolyte, the sealing door is closed, and the main controller is used to move the shifting mechanism installed in the middle of the main frame in multiple directions. In conjunction with the rotating motor, the angle of the battery body is rotated, and the battery body, which is clamped between each clamping arm, is cut horizontally, vertically, and obliquely in multiple directions. During the cutting process, the debris is blocked between each baffle and the sealing door, and finally moves down the vertical shifting platform. With the help of the protruding pusher plate, each cut waste piece is pushed down to the two drop ports and collected by the collection cylinder. Its technical advantage is that by taking advantage of the convenient opening and closing of the sealing door, the electrolyte of the lithium battery is collected before cutting, which constitutes a complete and efficient decomposition scheme for lithium batteries, avoiding the problem of having to deal with waste electrolyte after decomposition in the existing technology. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the structure of the flipping mechanism of the present invention; Figure 4 This is the present invention. Figure 2 Enlarged detail view of point A in the middle; Figure 5 This is the present invention. Figure 2 A magnified view of the details at point B in the middle.

[0018] In the diagram: 1. Main frame; 2. Discharge port; 3. Collection cylinder; 4. Tilting mechanism; 41. Support frame; 42. Rotary motor; 43. Clamping plate; 44. Clamping arm; 45. Battery body; 5. Sealing component; 51. Cylinder; 52. Connecting rod; 53. Sealing rod; 6. Liquid suction mechanism; 61. Liquid pump; 62. Liquid collection bottle; 7. Shifting mechanism; 71. Longitudinal shifting platform; 72. Shifting motor one; 73. Horizontal shifting platform; 74. Shifting motor two; 75. Vertical shifting platform; 76. Shifting motor three; 8. Drilling and cutting machine; 9. Drilling and cutting component; 91. Drill rod; 92. Cutting disc; 10. Sealing door; 11. Baffle; 12. Support plate; 13. Guide hopper; 14. Main controller; 15. Pushing plate; 16. Slide rail; 17. Slider; 18. Guide rod; 19. Guide cylinder; 20. Handle. Detailed Implementation

[0019] 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.

[0020] like Figures 1 to 5 As shown, a lithium-ion battery casing decomposition device includes a main frame 1, with two discharge ports 2 on one side of the middle of the main frame 1, and a collection cylinder 3 at the bottom of the main frame 1; a flipping mechanism 4 is installed between the two discharge ports 2, which is used to clamp and flip the lithium battery; a sealing component 5 is installed on one side of the flipping mechanism 4 to prevent electrolyte leakage when the lithium battery is flipped; a liquid suction mechanism 6 is installed on one side of the main frame 1 to suck up the electrolyte of the flipped lithium battery; a shifting mechanism 7 is installed on the top of the main frame 1, a drilling and cutting machine 8 is installed on one side of the shifting mechanism 7, and a drilling and cutting component 9 is installed at the end of the drilling and cutting machine 8 for drilling and cutting the lithium battery; a sealing door 10 is vertically connected to the top of the main frame 1; and a main controller 14 is installed on one side of the main frame 1. It should be noted that the main frame 1 is a vertical cabinet with a double-layer structure. The bottom perimeter is open, and the top perimeter and top surface, except for the sealing door 10, are fixedly connected to baffles 11. The baffles 11 are used to prevent the splashing of debris during the cutting process. Preferably, the sealing door 10 is transparent to facilitate observation of the cutting status of the internal lithium battery. Universal wheels are installed at the four corners of the bottom surface of the main frame 1. Preferably, the universal wheels are self-locking wheels, which improve the overall ease of movement of the equipment. The middle of the main frame 1 is fixedly connected to... With the support plate 12 attached, two discharge ports 2 are set on one side of the support plate 12. The bottom surface of the support plate 12 is adapted to the two discharge ports 2 and is fixedly connected to the guide hopper 13. The bottom surface of the guide hopper 13 is open and located directly above the collection cylinder 3. The debris generated during the cutting of lithium batteries and the waste blocks after cutting are all dropped into the collection cylinder 3 through the two discharge ports 2 along the guide hopper 13. The main controller 14 is used to control the movement and opening and closing status of all electrical equipment. It is installed at one end of the outer side of the middle of the main frame 1 for easy manual operation.

[0021] like Figure 2 and Figure 3 As shown, the flipping mechanism 4 includes a support frame 41 fixedly connected to the support plate 12. A rotating motor 42 is installed on one side of the top of the support frame 41. The output end of the rotating motor 42 is fixedly connected to the clamping plate 43. Clamping arms 44 are provided on both sides and one end of the clamping plate 43. The battery body 45 is clamped between each clamping arm 44. The sealing component 5 includes a cylinder 51 installed on one side of the clamping plate 43. The end of the telescopic rod of the cylinder 51 is rotatably connected to the connecting rod 52. The end of the connecting rod 52 is fixedly connected to the sealing rod 53. The top of the sealing rod 53 is U-shaped. It should be noted that clamping arms 44 are only provided on three sides of the clamping plate 43. Therefore, the battery body 45 can be pushed between the clamping arms 44 through the side without clamping arms 44. Preferably, each clamping arm 44 and the battery body 45 are interference fit to maintain clamping stability. The purpose is to prevent the battery body 45 from falling off during the entire cutting process, so that smaller waste blocks can be cut. The U-shaped sealing rod 53 adjusts the distance between itself and the battery body 45 during the extension and retraction of the cylinder 51. When it is close, it can block the drill hole used to release electrolyte. When it is far away, the liquid suction mechanism 6 can suck up the electrolyte. After the connecting rod 52 is used to extract the electrolyte, the sealing rod 53 is rotated to the side that does not interfere with the cutting process.

[0022] The liquid suction mechanism 6 includes a liquid pump 61 installed on one side of the support plate 12. The liquid pump 61 is used to draw electrolyte from inside the battery body 45 after it is flipped. A liquid collection bottle 62 is installed on one side of the main frame 1. The liquid pump 61 is connected to the liquid collection bottle 62. After the battery body 45 is drilled and flipped over, the operator inserts the suction tube (not shown) of the liquid pump 61 into the drilled hole at the bottom of the battery body 45 and draws up the electrolyte. The electrolyte is then collected by the collection bottle 62 through the liquid pump 61.

[0023] like Figure 2 and Figure 5 As shown, the shifting mechanism 7 includes a longitudinal shifting platform 71 mounted on the top of the support plate 12, a shifting motor 72 mounted on one side of the longitudinal shifting platform 71, a transverse shifting platform 73 mounted on the top of the longitudinal shifting platform 71, a shifting motor 74 mounted on one side of the transverse shifting platform 73, a vertical shifting platform 75 mounted on one side of the transverse shifting platform 73, a shifting motor 76 mounted on the top of the vertical shifting platform 75, a drilling and cutting machine 8 mounted on one side of the vertical shifting platform 75, and a drilling and cutting component 9 mounted on the bottom of the drilling and cutting machine 8. The drilling component 9 includes a drill rod 91 installed at the output end of the drilling machine 8. A cutting disc 92 is fixedly connected to the middle of the drill rod 91. The cutting depth of the cutting disc 92 is equal to the thickness of the battery body 45. A pusher plate 15 is installed at the front end of the drilling machine 8. It should be noted that the longitudinal moving platform 71, the transverse moving platform 73, and the vertical moving platform 75 form a three-axis moving structure in space. The drilling and cutting machine 8 installed on one side of the vertical moving platform 75 can move arbitrarily within the space at the top of the main frame 1, thereby increasing the degree of freedom in cutting the battery body 45. The battery body 45 installed at the flipping mechanism 4 can be cut arbitrarily in the transverse and longitudinal directions. At the same time, in conjunction with the rotation of the rotating motor 42, the battery body 45 can be further cut obliquely. The purpose is to cut the battery body 45 into smaller waste pieces, which facilitates subsequent compression and recycling.

[0024] like Figure 2 and Figure 4 As shown, slide rails 16 are installed on both sides of the top of the main frame 1. Two sliders 17 are slidably connected to the outside of the slide rails 16. The two sides of the sealing door 10 are fixedly connected to the sliders 17 on the adjacent sides. A guide rod 18 is fixedly connected to one side of the top of the sealing door 10. The guide rod 18 is adapted to the inner side of the top of the main frame 1 and fixedly connected to the guide cylinder 19. The guide rod 18 is inserted into the inside of the guide cylinder 19. A handle 20 is fixedly connected to the outer side of the bottom of the sealing door 10. It should be noted that, since the lithium battery needs to be decomposed and recycled in sequence, the electrolyte needs to be recycled and the battery body 45 needs to be cut. There is no splashing of cutting debris during electrolyte recycling, and the liquid pump 61 needs to be connected to the pipeline of the battery body 45. Therefore, the sealing door 10 needs to be opened, while the sealing door 10 is closed during the cutting process.

[0025] The working principle of this invention is as follows: The operator first pushes the sealing door 10 to the open state, then inserts the battery body 45 between the clamping arms 44 of the clamping plate 43. The main controller 14 controls the rotating motor 42 to rotate the bottom of the battery body 45 to the upward position. Then, the shifting mechanism 7 moves the drilling machine 8 to directly above the battery body 45, and the drill rod 91 moves down to drill a hole at the bottom of the battery body 45 to expose the electrolyte. Then, the end of the sealing rod 53 of the sealing component 5 moves up and then down to seal the drill hole. The rotating motor 42 rotates 180 degrees to make the drill hole face down, removes the sealing rod 53 to expose the drill hole, and rotates the sealing rod 53 to the side away from the battery body 45 to facilitate subsequent cutting. At the same time, the operator connects the suction pipe of the liquid pump 61 to the exposed drill hole, and the electrolyte is collected into the collection bottle 62. Thus, the collection of electrolyte is completed. Then, the sealing door 10 is pulled down, and the position of the three-track shifting mechanism 7 is adjusted by the main controller 14. The cutting blade 92 is used to cut the battery body 45 in multiple directions, including horizontally, vertically, and diagonally. Finally, the pusher plate 15 on the vertical shifting table 75 is moved to push the entire cut battery body 45. The waste block finally enters the bottom collection cylinder 3 through the discharge port 2, completing the complete decomposition of the lithium battery. In addition, the debris during the cutting process is blocked by the sealing door 10 and the baffles 11.

[0026] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A lithium-ion battery casing disassembly device, comprising a main frame (1), wherein a support plate (12) is fixedly connected to the middle of the main frame (1), characterized in that, Two material discharge ports (2) are provided on one side of the support plate (12), and a collection cylinder (3) is placed at the bottom of the main frame (1); a flipping mechanism (4) is installed between the two material discharge ports (2) on the support plate (12), the flipping mechanism (4) is used to clamp and flip the lithium battery, a sealing component (5) is provided on one side of the flipping mechanism (4), the sealing component (5) is used to prevent electrolyte leakage when the lithium battery is flipped; a liquid suction mechanism (6) is provided on one side of the main frame (1), the liquid suction mechanism (6) is used to suck up the electrolyte after the lithium battery is flipped; a shifting mechanism (7) is installed on the top of the main frame (1), a drilling and cutting machine (8) is installed on one side of the shifting mechanism (7), a drilling and cutting component (9) is installed at the bottom of the drilling and cutting machine (8), the drilling and cutting component (9) is used for drilling and cutting the lithium battery; a sealing door (10) is movably connected to the top of the main frame (1) in the vertical direction; a main controller (14) is installed on one side of the main frame (1).

2. The lithium-ion battery casing decomposition device according to claim 1, characterized in that, The flipping mechanism (4) includes a support frame (41) fixedly connected to the support plate (12). A rotating motor (42) is installed on one side of the top of the support frame (41). A clamping plate (43) is fixedly connected to the output end of the rotating motor (42). Two clamping arms (44) are provided on both sides and one end of the clamping plate (43). A battery body (45) is clamped between each clamping arm (44). Each clamping arm (44) and the battery body (45) are interference fit.

3. The lithium-ion battery casing decomposition device according to claim 2, characterized in that, The sealing component (5) includes a cylinder (51) installed on one side of the clamp (43). The end of the telescopic rod of the cylinder (51) is rotatably connected to a connecting rod (52). The end of the connecting rod (52) is fixedly connected to a sealing rod (53). The top of the sealing rod (53) is U-shaped.

4. The lithium-ion battery casing decomposition device according to claim 2, characterized in that, The liquid suction mechanism (6) includes a liquid pump (61) installed on one side of the support plate (12). The liquid pump (61) is used to draw the electrolyte inside the battery body (45) after it is flipped. A liquid collection bottle (62) is installed on one side of the main frame (1). The liquid pump (61) is connected to the liquid collection bottle (62).

5. The lithium-ion battery casing decomposition device according to claim 1, characterized in that, The shifting mechanism (7) includes a longitudinal shifting platform (71) installed on the top of the support plate (12), a shifting motor (72) is installed on one side of the longitudinal shifting platform (71), a transverse shifting platform (73) is installed on the top of the longitudinal shifting platform (71), a shifting motor (74) is installed on one side of the transverse shifting platform (73), a vertical shifting platform (75) is installed on one side of the transverse shifting platform (73), a shifting motor (76) is installed on the top of the vertical shifting platform (75), and the drilling and cutting machine (8) is installed on one side of the vertical shifting platform (75).

6. A lithium-ion battery casing decomposition device according to claim 2, characterized in that, The drilling component (9) includes a drill rod (91) installed at the output end of the drilling machine (8). A cutting blade (92) is fixedly connected to the middle of the drill rod (91). The cutting depth of the cutting blade (92) is equal to the thickness of the battery body (45). A pusher plate (15) is installed on the side of the drilling machine (8) near the flipping mechanism (4).

7. The lithium-ion battery casing decomposition device according to claim 1, characterized in that, The main frame (1) is equipped with slide rails (16) on both sides of the top. Two sliders (17) are slidably connected to the outside of the slide rails (16). The two sides of the sealing door (10) are fixedly connected to the sliders (17) on the adjacent sides. A guide rod (18) is fixedly connected to one side of the top of the sealing door (10). A guide cylinder (19) is fixedly connected to the top of the main frame (1) to fit the guide rod (18). The guide rod (18) is inserted into the inside of the guide cylinder (19). A handle (20) is fixedly connected to the outside of the bottom of the sealing door (10).

8. A lithium-ion battery casing decomposition device according to claim 1, characterized in that, The bottom periphery of the main frame (1) is hollow, and the top layer is fixedly connected with multiple baffles (11), and the sealing door (10) is transparent.

9. A lithium-ion battery casing decomposition device according to claim 1, characterized in that, The bottom surface of the support plate (12) is adapted to two material discharge ports (2) and is fixedly connected to a guide hopper (13). The bottom surface of the guide hopper (13) is open and located directly above the collection cylinder (3).

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