A heterogeneous lithium battery disassembling device and a disassembling method thereof
By designing a heterogeneous lithium battery dismantling device, using laser and pressure sensors for classification, a two-dimensional camera for size acquisition, multi-angle gripping and cutting, and electromagnetic ejection of the battery cells, the problem of low dismantling efficiency and environmental pollution of power lithium batteries is solved, achieving efficient automated dismantling and resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
- Filing Date
- 2022-10-11
- Publication Date
- 2026-07-21
AI Technical Summary
In the current technology, the dismantling of power lithium batteries mainly relies on manual or semi-automatic methods, which are inefficient, costly, and cause secondary pollution. There is a lack of automated dismantling technology for different types and specifications of lithium batteries.
A heterogeneous lithium battery disassembly device was designed, including a feeding and identification classification component, a multi-angle rotatable gripping mechanism, an electromagnetic array ejection mechanism, and an adjustable cutting device. The device classifies the batteries using laser sensors and pressure sensors, acquires the lithium battery dimensions using a two-dimensional camera, grips and cuts the batteries from multiple angles, and ejects the battery cells electromagnetically.
It enables automated disassembly of lithium batteries of different shapes and sizes, improving disassembly efficiency and resource utilization, reducing manual intervention, and improving the working environment.
Smart Images

Figure CN115911628B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of automated dismantling, and in particular to a heterogeneous lithium battery dismantling and recycling mechanism, specifically a heterogeneous lithium battery dismantling device and method that can dismantle lithium batteries of different sizes and shapes. Background Technology
[0002] With government support for the new energy industry, new energy vehicles have developed rapidly, and China has become the world's largest new energy vehicle market and the largest producer and consumer of lithium batteries. However, the lifespan of power lithium batteries is typically around 5 years, and as the electric vehicle market continues to grow, the amount of power batteries being scrapped is also increasing. In the next 3 to 4 years, a "scrapping wave" of power lithium batteries is expected. The cobalt, nickel, and lithium materials in retired power lithium batteries are crucial strategic resources, widely used in aviation, aerospace, electrical appliances, machinery, chemicals, and ceramics. Currently, my country relies on imports for 80% of its cobalt and 70% of its lithium and nickel resources.
[0003] However, the recycling and utilization of power batteries in my country is still in its initial stage. Mature technologies for dismantling different types and specifications of power lithium batteries are lacking. Battery dismantling is primarily done manually or semi-automatically, which is not only inefficient, labor-intensive, and costly, but also creates a poor working environment and easily generates secondary pollution. Therefore, for the large-scale retirement of power lithium batteries, it is crucial to develop dismantling technologies and equipment that are versatile, adaptable, and highly automated and intelligent to ensure the healthy and sustainable development of my country's new energy industry. Thus, it is imperative to quickly develop intelligent equipment capable of automatically dismantling different types and specifications of power lithium batteries to improve dismantling efficiency and resource utilization, and to improve the working environment and conditions. Summary of the Invention
[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, a heterogeneous lithium battery dismantling device is provided. It is an intelligent equipment for automatically dismantling power lithium batteries of different types and specifications. It can cut and recycle cells of lithium batteries of different shapes and sizes. It is not only highly adaptable and efficient, but also has low manufacturing cost. It also effectively improves dismantling efficiency and resource utilization rate.
[0005] Technical solution: To achieve the above objectives, the present invention provides a heterogeneous lithium battery disassembly device, including a feeding and identification classification component, a multi-angle rotatable gripping mechanism, an electromagnetic array ejection mechanism, and an adjustable cutting device.
[0006] The feeding identification and classification component is used for the preliminary classification of heterogeneous lithium batteries;
[0007] The multi-angle rotatable gripping mechanism is used to obtain lithium battery size information and to grip and move heterogeneous lithium batteries to the cutting position.
[0008] The adjustable cutting device is used to cut the lithium battery casing;
[0009] The electromagnetic array ejection mechanism is used to eject and recycle the cut lithium battery cells.
[0010] Furthermore, the feeding, identification, and classification component includes a transmission belt device, a laser-sensing volume detector disposed above the conveyor belt, a classification cylinder disposed at the edge of the conveyor belt, a round lithium battery waiting box disposed at the bottom of the conveyor belt, and a square lithium battery waiting box disposed at the bottom of the conveyor belt.
[0011] The drive belt device is used for continuous sorting of lithium batteries.
[0012] The laser-sensing volume detector is used to distinguish lithium battery types;
[0013] The sorting cylinder is used to distinguish between round lithium batteries and square lithium batteries;
[0014] The round lithium battery processing box is used to receive round lithium batteries.
[0015] The square lithium battery processing box is used to receive square lithium batteries.
[0016] Furthermore, pressure sensors are installed at the bottom of both the round and square lithium battery processing bins to detect whether the lithium batteries are in place. A patch-type pressure sensor can also be installed at the bottom of the conveyor belt to detect whether the batteries have been sorted.
[0017] Thin plates are installed at the edges of the conveyor belt to prevent the sorting cylinder from pushing the lithium batteries off the conveyor belt; a laser-sensor volume detector calculates the area of the lithium battery by measuring the obstructed portion as it moves from below. Due to the large structural differences between round and square lithium batteries, their volumes differ significantly, so even with an fuzzy area value, rapid sorting can still be achieved; at the bottom of the conveyor belt, a processing bin triggers a pressure sensor at the bottom of the bin when the lithium battery slides off the conveyor belt, causing it to send a signal indicating that the lithium battery has reached its position for subsequent use.
[0018] Furthermore, the multi-angle rotatable gripping mechanism includes a left and right moving lead screw and a first drive motor disposed at the bottom of the overall device, a support column disposed on the left and right moving lead screw, a front and rear moving lead screw disposed on the support column, a gripping mechanism housing disposed on the front and rear moving lead screw, a lifting mechanism disposed on the gripping mechanism housing, a rotatable cylinder disposed at the bottom of the lifting mechanism, a telescopic cylinder disposed at the bottom of the rotatable cylinder, grippers disposed on both sides of the telescopic cylinder, embedded laser receivers disposed on both sides of the grippers, and an ejection cylinder disposed on the gripping mechanism housing, wherein the end of the ejection cylinder is connected to an electromagnetic array ejection mechanism.
[0019] Furthermore, the lifting mechanism includes a multi-stage gear rack structure and a second drive motor, the second drive motor being connected to the gears of the multi-stage gear rack structure, and the rack of the multi-stage gear rack structure being connected to a rotatable cylinder.
[0020] Furthermore, a laser sensor transmitter and a laser sensor receiver are respectively provided on the two inner sides of the gripping mechanism housing.
[0021] Furthermore, the adjustable cutting device includes two front and rear lead screws, a movable block disposed on the front and rear lead screws, a left and right lead screw disposed between the two movable blocks, a first cutting machine and a second cutting machine disposed on the left and right lead screws, and a battery cell recycling box disposed on the side of the cutting device.
[0022] Furthermore, the electromagnetic array ejection mechanism includes an electromagnetic plate disposed at the bottom of the housing, a spring disposed above the electromagnetic plate, a positioning rod disposed at the front end of the spring, and a magnetic disc disposed at the upper end of the bottom spring.
[0023] Furthermore, the multi-angle rotatable gripping mechanism also includes a two-dimensional camera, which is used to take pictures of the lithium battery to obtain the two-dimensional shape (length and width) of the lithium battery. After obtaining the information, it can be gripped immediately, saving secondary movement time.
[0024] This invention provides a heterogeneous lithium battery disassembly device. Its basic principle is to first distinguish the volumes of round and square lithium batteries using a laser-sensing volume detector, then classify them into a processing box using a sorting cylinder. A pressure sensor is built into the processing box. When a lithium battery is in place, the pressure sensor sends a signal, moving a multi-angle rotatable gripping mechanism above the processing box. A two-dimensional camera captures the two-dimensional dimensions (length and width) of the lithium battery. The rotating cylinder rotates the gripper to achieve positioning, lowers to grip the lithium battery, and returns to the position of the symmetrical laser receiver. A laser is emitted through a laser sensor, and laser receivers are symmetrically arranged, with laser receivers also installed on the gripper. By calculating the unaccepted area (the portion blocked by the lithium battery), the height of the lithium battery and the cutable area can be obtained. Based on the obtained cutable area, an adjustable cutting device moves the cutting machine to a suitable cutting position to cut the lithium battery. After cutting, the multi-angle rotatable gripping mechanism is moved to the battery cell recycling box. Based on the previously calculated width and height of the lithium battery, a specific position of the electromagnetic floor in the electromagnetic array ejection mechanism is charged, making it opposite to the magnetic field of the electromagnetic circular plate. The positioning rod is then ejected (within the width and height area of the lithium battery). Then, the ejection cylinder at the bottom of the electromagnetic array ejection mechanism ejects the battery cell, causing it to separate from the casing and fall into the designated area.
[0025] Beneficial effects: Compared with the prior art, this invention adopts a modular component approach and designs a feeding and identification classification component, a multi-angle rotatable gripping mechanism, and an adjustable cutting device to achieve an automated dismantling process for heterogeneous lithium batteries. It can quickly dismantle and recycle large-scale retired power lithium batteries, and has a high degree of automation and intelligence, thereby effectively improving dismantling efficiency and resource utilization. Compared with traditional manual dismantling, it reduces human intervention, has a high degree of automation, and is fast in dismantling. Attached Figure Description
[0026] Figure 1 This is a front view of a heterogeneous lithium battery dismantling device according to the present invention;
[0027] Figure 2 This is a front view of the material feeding identification and classification component of the present invention;
[0028] Figure 3 This is a front view of the multi-angle rotatable gripping mechanism of the present invention;
[0029] Figure 4 This is a front view of the electromagnetic array ejection mechanism of the present invention;
[0030] Figure 5 This is a front view of the adjustable cutting device of the present invention.
[0031] Explanation of numbers in the diagram: 1-Feeding and sorting component; 1.1 Laser sensor volume detector; 1.2 Conveyor belt; 1.3 Sorting cylinder; 1.4 Round lithium battery processing box; 1.5 Square lithium battery processing box; 2-Multi-angle rotatable gripping mechanism; 2.1 Second drive motor; 2.2 Telescopic cylinder; 2.3 Left and right moving lead screw; 2.4 First drive motor; 2.5 Forward and backward moving lead screw; 2.6 Multi-stage gear and rack transmission structure; 2.7 Laser sensor receiver; 2.8 Rotatable... 2.9 - Cylinder; 2.10 - Electromagnetic array ejection mechanism; 2.10.1 - Unejected positioning rod; 2.10.2 - Ejected positioning rod; 2.10.3 - Spring; 2.10.4 - Electromagnetic base; 2.10.5 - Magnetic disc; 2.11 - Gripper; 2.12 - Gripping mechanism housing; 2.14 - Embedded laser receiver; 3 - Adjustable cutting device; 3.1 - Front and rear lead screws; 3.2 - First cutting machine; 3.3 - Left and right lead screws; 3.4 - Second cutting machine; 3.5 - Battery cell recycling box. Detailed Implementation
[0032] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. After reading this invention, any modifications of the invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.
[0033] like Figure 1 As shown, the present invention provides a heterogeneous lithium battery dismantling device, including a feeding and identification classification component 1, a multi-angle rotatable gripping mechanism 2, an electromagnetic array ejection mechanism, and an adjustable cutting device 3; the feeding and identification classification component 1 is used for preliminary classification of heterogeneous lithium batteries; the multi-angle rotatable gripping mechanism 2 is used to obtain lithium battery size information and to grip and move the heterogeneous lithium batteries to the cutting position; the adjustable cutting device 3 is used to cut the lithium battery casing; and the electromagnetic array ejection mechanism is used to eject and recycle the cut lithium battery cells.
[0034] like Figure 2 As shown, the feeding and sorting component 1 includes a conveyor belt 1.2, a laser-sensing volume detector 1.1 located above the conveyor belt 1.2, a sorting cylinder 1.3 located at the edge of the conveyor belt 1.2, a round lithium battery waiting box 1.4 located at the bottom of the conveyor belt 1.2, and a square lithium battery waiting box 1.5 located at the bottom of the conveyor belt 1.2. Both the round lithium battery waiting box 1.4 and the square lithium battery waiting box 1.5 are equipped with pressure sensors (not shown in the figure) at their bottoms. The pressure sensors are used to detect whether the lithium batteries are in place. A patch-type pressure sensor can also be installed at the bottom of the conveyor belt 1.2 to detect whether the batteries have been sorted.
[0035] like Figure 3 As shown, the multi-angle rotatable gripping mechanism 2 includes a left-right moving screw 2.3 and a first drive motor 2.4 located at the bottom of the overall device; a support column 2.13 mounted on the left-right moving screw 2.3; a front-back moving screw 2.5 mounted on the support column 2.13; a gripping mechanism housing 2.12 mounted on the front-back moving screw 2.5; a lifting mechanism mounted on the gripping mechanism housing 2.12; a rotatable cylinder 2.8 located at the bottom of the lifting mechanism; a telescopic cylinder 2.2 located at the bottom of the rotatable cylinder 2.8; grippers 2.11 located on both sides of the telescopic cylinder 2.2; embedded laser receivers 2.14 located on both sides of the grippers 2.11; a two-dimensional camera (not shown in the figure) mounted on the multi-angle rotatable gripping mechanism 2; and an ejection cylinder 2.9 located on the gripping mechanism housing 2.12, with an electromagnetic array ejection mechanism 2.10 connected to the end of the ejection cylinder 2.9.
[0036] The lifting mechanism includes a multi-stage gear and rack transmission structure 2.6 and a second drive motor 2.1. The second drive motor 2.1 is connected to the gears of the multi-stage gear and rack structure 2.6, and the rack of the multi-stage gear and rack structure 2.6 is connected to a rotatable cylinder 2.8. A laser sensor transmitter (not shown in the figure) and a laser sensor receiver 2.7 are respectively provided on the two inner sides of the gripping mechanism housing 2.12, and the two are arranged symmetrically.
[0037] like Figure 4 As shown, the electromagnetic array ejection mechanism 2.10 includes a mechanism housing 2.10.6, an electromagnetic plate 2.10.4 disposed at the bottom of the mechanism housing 2.10.6, a spring 2.10.3 disposed above the electromagnetic plate 2.10.4, a positioning rod disposed at the front end of the spring 2.10.3, and a magnetic disc 2.10.5 disposed at the upper end of the bottom spring. The positioning rod includes an un-ejected positioning rod 2.10.1 and an ejected positioning rod 2.10.2.
[0038] like Figure 5 As shown, the adjustable cutting device 3 includes two front and rear lead screws 3.1, a moving block 3.6 disposed on the front and rear lead screws 3.1, a left and right lead screw 3.3 disposed between the two moving blocks 3.6, a first cutter 3.2 and a second cutter 3.4 disposed on the left and right lead screws 3.3, and a battery cell recycling box 3.5 disposed on the side of the cutting device.
[0039] Based on the above solution, this embodiment applies the heterogeneous lithium battery dismantling device to automate the dismantling of heterogeneous lithium batteries. The specific process includes the following steps:
[0040] S1: Place the heterogeneous lithium battery onto the conveyor belt 1.2. Due to the large volume difference between round and square lithium batteries, when the lithium battery reaches below the laser sensing volume detector 1.1, the laser sensing volume detector 1.1 can quickly distinguish its type. The classification cylinder 1.3 controls the movement of the lithium battery on the conveyor belt 1.2, so that the round lithium battery and the square lithium battery can fall into the round lithium battery waiting box 1.4 and the square lithium battery waiting box 1.5 respectively.
[0041] S2: When the lithium battery arrives at the processing box, the patch pressure sensor generates a positioning signal to the multi-angle rotatable gripping mechanism 2. After receiving the signal, the multi-angle rotatable gripping mechanism 2 starts working. The specific process is as follows:
[0042] The first drive motor 2.4 drives the left and right moving lead screw 2.3, which causes the support column 2.13 to move the multi-angle rotatable gripping mechanism 2 towards the box to be processed. When the multi-angle rotatable gripping mechanism 2 reaches the top of the box to be processed, a two-dimensional camera is used to take a picture of the box to be processed to obtain a two-dimensional image (length and width) of the lithium battery. Then, the rotatable cylinder 2.8 adjusts the angle of the control gripper 2.11. Then, the second drive motor 2.1 controls the gears and racks of the multi-stage gear and rack transmission structure 2.6 to start engaging, so that the gripper 2.11 descends to the designated position. Then, the telescopic cylinder 2.2 controls the gripper 2.11 to clamp and grasp the lithium battery.
[0043] S3: After grabbing the lithium battery, return to the position of the symmetrical laser detection device. This device is set on the left and right sides of the gripper 2.11, including a laser sensor transmitter and a laser sensor receiver 2.7. Its main function is to emit laser on the left and receive laser on the right (a laser receiver is also arranged on the outer side of the gripper 2.11). The height of the lithium battery and the cutable area can be obtained by calculating the unreceived area (the part blocked by the lithium battery).
[0044] S4: Based on the calculated cutable range, the adjustable cutting device 3 adjusts the front and rear positions of the first cutting machine 3.2 and the second cutting machine 3.4 through two front and rear lead screws 3.1, and adjusts the left and right positions of the first cutting machine 3.2 and the second cutting machine 3.4 through the left and right lead screws 3.3. The adjusted adjustable cutting device 3 then cuts the lithium battery casing.
[0045] S5: After the cutting is completed, the gripper 2.11 returns to the position of the electromagnetic array ejection mechanism 2.10. By obtaining the two-dimensional dimensions (length and width) of the battery obtained by the two-dimensional camera in step S2 and the height of the battery obtained by the laser sensor in step S3, the position of the lithium battery cell can be determined.
[0046] Reference Figure 4 At the beginning, the electromagnetic plate 2.10.4 at the designated position in the electromagnetic array ejection mechanism 2.10 is kept energized, so that its magnetism is the same as that of the magnetic disc 2.10.5 connected to the top of the corresponding spring 2.10.3, thereby compressing the spring. Since the magnetic disc 2.10.5 is fixed to the bottom of the positioning rod, it drives the positioning rod to move inward. At this time, the positioning rod is retracted inside the mechanism housing 2.10.6 and is in the un-ejected state. After determining the location of the lithium battery cell, the electromagnetic plate at the designated location is discharged, causing it to lose its magnetism. This causes the spring of the corresponding positioning rod to reset. Due to the loss of the spring's limiting effect, these positioning rods at the designated locations can be pushed out (within the width and height area of the lithium battery). Then, the electromagnetic plate 2.10.4 is pushed out by the push-out cylinder 2.9, and the aforementioned positioning rods at the designated locations are pushed out to form pushed-out positioning rods 2.10.2. The remaining positioning rods cannot be pushed out due to the spring's limiting effect, forming unpushed positioning rods 2.10.1. The pushed-out positioning rods 2.10.2 contact the cut lithium battery core and push it out. The lithium battery core is pushed into the cell recycling box 3.5, completing the recycling step.
Claims
1. A heterogeneous lithium battery dismantling device, characterized in that, It includes a material feeding and identification classification component, a multi-angle rotatable gripping mechanism, an electromagnetic array ejection mechanism, and an adjustable cutting device; The feeding identification and classification component is used for the preliminary classification of heterogeneous lithium batteries; The multi-angle rotatable gripping mechanism is used to obtain lithium battery size information and to grip and move heterogeneous lithium batteries to the cutting position. The adjustable cutting device is used to cut the lithium battery casing; The electromagnetic array ejection mechanism is used to eject and recycle the cut lithium battery cells. The multi-angle rotatable gripping mechanism includes a left and right moving lead screw and a first drive motor located at the bottom of the overall device, a support column mounted on the left and right moving lead screw, a front and rear moving lead screw mounted on the support column, a gripping mechanism housing mounted on the front and rear moving lead screw, a lifting mechanism mounted on the gripping mechanism housing, a rotatable cylinder located at the bottom of the lifting mechanism, a telescopic cylinder located at the bottom of the rotatable cylinder, grippers located on both sides of the telescopic cylinder, embedded laser receivers located on both sides of the grippers, and an ejection cylinder located on the gripping mechanism housing. The end of the ejection cylinder is connected to an electromagnetic array ejection mechanism. A laser sensor transmitter and a laser sensor receiver are respectively provided on the two inner sides of the gripping mechanism housing. The electromagnetic array ejection mechanism includes an electromagnetic plate disposed at the bottom of the housing, a spring disposed above the electromagnetic plate, a positioning rod disposed at the front end of the spring, and a magnetic disc disposed at the upper end of the bottom spring.
2. The heterogeneous lithium battery dismantling device according to claim 1, characterized in that, The feeding, identification, and classification component includes a transmission belt device, a laser-sensing volume detector located above the conveyor belt, a classification cylinder located at the edge of the conveyor belt, a round lithium battery waiting box located at the bottom of the conveyor belt, and a square lithium battery waiting box located at the bottom of the conveyor belt. The drive belt device is used for continuous sorting of lithium batteries. The laser-sensing volume detector is used to distinguish lithium battery types; The sorting cylinder is used to distinguish between round lithium batteries and square lithium batteries; The round lithium battery processing box is used to receive round lithium batteries. The square lithium battery processing box is used to receive square lithium batteries.
3. The heterogeneous lithium battery dismantling device according to claim 2, characterized in that, Both the round and square lithium battery processing boxes are equipped with pressure sensors at their bottoms, which are used to detect whether the lithium batteries are in place.
4. The heterogeneous lithium battery dismantling device according to claim 1, characterized in that, The lifting mechanism includes a multi-stage gear rack structure and a second drive motor. The second drive motor is connected to the gears of the multi-stage gear rack structure, and the rack of the multi-stage gear rack structure is connected to a rotatable cylinder.
5. The heterogeneous lithium battery dismantling device according to claim 1, characterized in that, The adjustable cutting device includes two front and rear lead screws, a movable block set on the front and rear lead screws, a left and right lead screw set between the two movable blocks, a first cutting machine and a second cutting machine set on the left and right lead screws, and a battery cell recycling box set on the side of the cutting device.
6. The heterogeneous lithium battery dismantling device according to claim 1, characterized in that, The multi-angle rotatable gripping mechanism also includes a two-dimensional camera, which is used to take pictures of the lithium battery to obtain the two-dimensional shape of the lithium battery.
7. A disassembly method for a heterogeneous lithium battery disassembly device, characterized in that, Includes the following steps: S1: Place the heterogeneous lithium battery on the conveyor belt. When the lithium battery reaches the laser sensing volume detector, the laser sensing volume detector can quickly distinguish its type and control the movement position of the lithium battery on the conveyor belt through the classification cylinder, so that the round lithium battery and the square lithium battery can fall into the round lithium battery waiting box and the square lithium battery waiting box respectively. S2: When the lithium battery arrives at the processing box, the patch pressure sensor generates a positioning signal to the multi-angle rotatable gripping mechanism. Upon receiving the signal, the multi-angle rotatable gripping mechanism begins to operate. The specific process is as follows: The first drive motor drives the left and right moving screw, which causes the support column to move the multi-angle rotatable gripping mechanism towards the box to be processed. When the multi-angle rotatable gripping mechanism reaches the top of the box to be processed, a two-dimensional camera is used to take a picture of the box to be processed to obtain a two-dimensional image of the lithium battery. Then, the rotatable cylinder adjusts the angle of the control gripper. Then, the second drive motor controls the gears and racks of the multi-stage gear and rack transmission structure to start engaging, so that the gripper descends to the designated position. Then, the telescopic cylinder controls the gripper to clamp and grasp the lithium battery. S3: After grabbing the lithium battery, return to the position of the symmetrical laser detection device. The height of the lithium battery and the cuttable area can be obtained by calculating the unreceived area. S4: Based on the calculated cutable range, the adjustable cutting device adjusts the front and rear positions of the first and second cutting machines through two front and rear lead screws, and adjusts the left and right positions of the first and second cutting machines through left and right lead screws. The adjusted adjustable cutting device then cuts the lithium battery casing. S5: After the cutting is completed, the gripper returns to the position of the electromagnetic array ejection mechanism. By obtaining the two-dimensional dimensions of the battery obtained by the two-dimensional camera in step S2 and the height of the battery obtained by the laser sensor in step S3, the position of the lithium battery cell can be determined. Initially, the electromagnetic plates at designated positions in the electromagnetic array ejection mechanism are energized, making their magnetism identical to that of the magnetic discs connected to the top of the corresponding springs. This compresses the springs, and because the magnetic discs are fixed to the bottom of the positioning rods, they move the positioning rods inward. At this point, the positioning rods are all retracted within the mechanism housing and are in an un-ejected state. After the lithium battery cell position is determined, the electromagnetic plates at the designated positions are discharged, causing them to lose their magnetism. This causes the springs of the corresponding positioning rods to reset. Due to the loss of the spring's limiting effect, these positioning rods at the designated positions can be ejected. Then, the ejection cylinder pushes the electromagnetic plates, and the aforementioned positioning rods at the designated positions are ejected, forming ejected positioning rods. The remaining positioning rods, due to spring limiting, cannot be ejected and remain un-ejected. The ejected positioning rods contact the cut lithium battery cores, causing them to be ejected. The lithium battery cores are then ejected into the cell recycling box, completing the recycling step.