A sealing device of soft package lithium battery cell with detection and recovery functions

Abstract

This invention discloses a sealing device for soft-pack lithium battery cells with detection and recycling functions. The sealing device includes a base, with support columns fixedly installed around the top of the base. A top plate is fixedly connected to the other end of each support column. A cold-press sealing mechanism is located at the top of the top plate, and a pushing mechanism is located at the bottom of the top plate. A detection mechanism is located on the back of the pushing mechanism. The detection mechanism includes connecting columns fixedly installed on both sides of the top of the base, with a processing plate fixedly connected to the other end of each connecting column. A detection groove is formed at the top of the processing plate, and a detection plate is located inside the detection groove. A limiting seat is fixedly installed at the bottom of the detection plate, and the extension end of a telescopic cylinder is fixedly connected to the other end of the limiting seat. The telescopic cylinder is fixedly connected to the base. This sealing device has both detection and recycling functions; detection and recycling are completed simultaneously with sealing, ensuring overall sealing efficiency and solving the problem of low efficiency caused by separating recycling and sealing in existing devices.

Description

[0001] This application is a divisional application of Chinese invention patent application No. 202110807343.9, filed on July 16, 2021, entitled "A sealing device and sealing method for a soft-pack lithium battery cell". Technical Field

[0002] This invention relates to the field of soft-pack lithium battery technology, specifically a sealing device for soft-pack lithium battery cells with detection and recycling functions. Background Technology

[0003] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. The lithium metal battery was first proposed and studied by Gilbert N. Lewis in 1912. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental controls. With the development of science and technology, lithium-ion batteries have become mainstream.

[0004] The process of making lithium battery pouch cells consists of four steps: stacking, applying adhesive, cold pressing and sealing, and welding.

[0005] Most existing sealing devices for pouch lithium-ion batteries separate the cell recycling and sealing processes during cold pressing, resulting in generally low efficiency and limitations. Furthermore, most existing sealing devices perform cold pressing directly on a conveyor belt, which can lead to spontaneous combustion of lithium batteries during this process. This can spread to the conveyor belt and other batteries along the belt, further limiting the effectiveness of these devices. Therefore, a new sealing device for pouch lithium-ion batteries is urgently needed to address these technical problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a sealing device and method for soft-pack lithium battery cells with detection and recycling functions, ensuring high sealing efficiency and solving the problem of low efficiency caused by separating recycling and sealing in existing devices.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a sealing device for a soft-pack lithium battery cell with detection and recycling functions, comprising a device base, support columns fixedly installed around the top of the device base, a top plate fixedly connected to the other end of the support columns, a cold-press sealing mechanism provided at the top of the top plate, a pushing mechanism provided at the bottom of the top plate, and a detection mechanism provided on the back of the pushing mechanism.

[0008] The detection mechanism includes connecting columns fixedly installed on both sides of the top of the device base. A processing plate is fixedly connected to the other end of the connecting columns. A detection groove is opened at the top of the processing plate. A detection plate is provided inside the detection groove. A limiting seat is fixedly installed at the bottom of the detection plate. The extension end of a telescopic cylinder is fixedly connected to the other end of the limiting seat. The telescopic cylinder is fixedly connected to the device base.

[0009] A recovery plate is provided on one side of the top of the telescopic cylinder, and the extension end of the recovery cylinder is fixedly connected to the other end of the recovery plate. The recovery cylinder is fixedly connected to the processing plate, and a recovery hopper is provided on the other side of the telescopic cylinder. The recovery hopper is fixedly connected to the device base.

[0010] A reset mechanism is provided on the back of the processing plate. The reset mechanism includes a reset plate. The back of the reset plate is fixedly connected to the extended end of a reset cylinder. The back of the reset cylinder is fixedly connected to a support plate. One end of the support plate is fixedly connected to the top plate, and the other end of the support plate is fixedly connected to the device base.

[0011] Preferably, the cold-press sealing mechanism includes a cold press installed at the top of the top plate. The bottom end of the cold press penetrates the inner top wall of the top plate and overlaps with a pressure column. The other end of the pressure column is fixedly connected to a synchronization plate. Synchronization columns are fixedly connected to all four sides of the bottom end of the synchronization plate. A buffer plate is fixedly connected to the other end of the synchronization column. A buffer spring is fixedly connected to all four sides of the bottom end of the buffer plate. The other end of the buffer spring is fixedly connected to a cold press plate.

[0012] Preferably, a pressure sensor is fixedly installed on the top of the buffer plate, linear bearings are fixedly installed on both sides of the top of the cold pressing plate, the other end of the linear bearings is fixedly connected to the top plate, and a detection probe is provided on the back of the cold pressing plate.

[0013] Preferably, the pushing mechanism includes a pushing cylinder fixedly installed at the bottom of the top plate, a synchronizing seat fixedly connected to the extended end of the pushing cylinder, stabilizing columns fixedly connected to both sides of the bottom end of the synchronizing seat, and a stabilizing plate fixedly connected to the other end of the stabilizing column.

[0014] Preferably, a synchronization cylinder is fixedly installed at the bottom center of the synchronization seat, the protruding end of the synchronization cylinder passes through the stabilizing plate and is fixedly connected to a push plate, and a limit plate is fixedly installed on the back of the push plate.

[0015] Furthermore, the present invention also provides a sealing method for a sealing device of a soft-pack lithium battery cell with detection and recycling functions, comprising the following steps:

[0016] Step a: When the conveying mechanism delivers the stacked and glued lithium battery cells to the bottom of the pushing mechanism, the synchronous cylinder drives the pushing plate to move to the side of the lithium battery cells. Then, the pushing cylinder drives the synchronous seat to move, thereby driving the pushing plate to push the lithium battery cells between the detection mechanism and the cold pressing sealing mechanism.

[0017] Step b: The cold press then applies pressure to the pressure column, thereby driving the pressure column to move downward. The synchronous plate moves downward accordingly, and the buffer plate connected to the synchronous column drives the cold press plate to move downward to achieve cold pressing. During the downward movement of the cold press plate, the pressure sensor is in working condition. When the pressure reaches the set value, the pressure sensor will feed back to the cold press, and the cold press will stop applying pressure.

[0018] Step c: When the cold-press sealing mechanism performs cold-press sealing on the lithium battery cell, the detection plate will perform synchronous detection on the lithium battery. When a problem is detected, the detection plate will provide feedback to the telescopic cylinder, which will then move the detection plate downwards. After the telescopic cylinder extends and retracts, it will provide feedback to the recycling cylinder, which will then move the recycling plate, thereby pushing the problematic lithium battery at the detection plate into the recycling hopper to complete the recycling.

[0019] Step d: After the cold-press sealing and testing are completed, the reset cylinder drives the reset plate to move, thereby pushing the lithium battery that has completed the cold-press sealing and testing at the processing plate back to the conveying mechanism, thus completing the sealing.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] 1. This sealing device for soft-pack lithium battery cells with detection and recycling functions, through the setting of a detection mechanism and a reset mechanism, allows the detection plate to simultaneously detect the lithium battery while the cold-press sealing mechanism performs cold-press sealing on the lithium battery cell. When a problem is detected, the detection plate will provide feedback to the telescopic cylinder, which will then move the detection plate downwards. After the telescopic cylinder extends and retracts, it will provide feedback to the recycling cylinder, which will then move the recycling plate, thereby pushing the problematic lithium battery from the detection plate into the recycling hopper for recycling. After completing the cold-press sealing and detection, the reset cylinder will move the reset plate, thereby pushing the lithium battery that has completed the cold-press sealing and detection from the processing plate back to the conveying mechanism to complete the sealing. Conveying and sealing are performed independently to ensure the sealing safety of the lithium battery cell. At the same time, detection and sealing are performed simultaneously, and when sealing is completed, detection and recycling are also completed, ensuring the overall sealing efficiency and solving the problem of low efficiency caused by separating recycling and sealing in existing devices.

[0022] 2. The sealing device for the soft-pack lithium battery cell with detection and recycling functions is equipped with a cold-press sealing mechanism and a pushing mechanism. When the conveying mechanism transports the lithium battery cell with the completed stacking and adhesive bonding to the bottom of the pushing mechanism, the synchronous cylinder drives the pushing plate to move to the side of the lithium battery cell. Then, the pushing cylinder drives the synchronous seat to move, thereby driving the pushing plate to push the lithium battery cell between the detection mechanism and the cold-press sealing mechanism. The cold press then applies pressure to the pressure column, thereby driving the pressure column to move downward. The synchronous plate moves downward accordingly, and the buffer plate connected to the synchronous column drives the cold press plate to move downward to achieve cold pressing. During the downward movement of the cold press plate, the pressure sensor is in working condition. When the pressure reaches the set value, the pressure sensor will feed back to the cold press, and the cold press will stop applying pressure. The buffer spring is set to provide a buffer force between the cold press plate and the cold press, thereby preventing damage to the lithium battery cell during the cold pressing process.

[0023] 3. The sealing device for the soft-pack lithium battery cell with detection and recycling functions, compared with the existing sealing devices, pushes the lithium battery cell to an independent position away from the conveyor belt for processing, thereby avoiding accidental impact on other lithium battery cells on the conveyor belt during the sealing process, thus ensuring the safety of sealing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a front view schematic diagram of the structure of the present invention;

[0026] Figure 3 This is a side view of the structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the cold-press sealing mechanism of the present invention;

[0028] Figure 5 This is a schematic diagram of the pushing mechanism structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the detection mechanism of the present invention;

[0030] Figure 7 This is a front view schematic diagram of the detection mechanism structure of the present invention.

[0031] The components include: 1. Device base; 2. Support column; 3. Top plate; 4. Cold pressing sealing mechanism; 41. Cold press; 42. Pressure column; 43. Synchronization plate; 44. Synchronization column; 45. Buffer plate; 451. Pressure sensor; 46. Buffer spring; 47. Cold pressing plate; 471. Linear bearing; 472. Detection probe; 5. Pushing mechanism; 51. Pushing cylinder; 52. Synchronization seat; 53. Stabilizing column; 54. Stabilizing plate; 55. Synchronization cylinder; 56. Pushing plate; 57. Limiting plate; 6. Detection mechanism; 61. Connecting column; 62. Processing plate; 63. Detection groove; 64. Detection plate; 65. Limiting seat; 66. Telescopic cylinder; 67. Recovery plate; 671. Recovery cylinder; 68. Recovery hopper; 7. Reset mechanism; 71. Reset plate; 72. Reset cylinder; 73. Support plate. Detailed Implementation

[0032] 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. Specific Implementation Method 1

[0034] Please see Figure 1-7 This embodiment provides a sealing device for a soft-pack lithium battery cell with detection and recycling functions, including a device base 1. Support columns 2 are fixedly installed around the top of the device base 1. A top plate 3 is fixedly connected to the other end of the support columns 2. A cold-press sealing mechanism 4 is provided at the top of the top plate 3. A pushing mechanism 5 is provided at the bottom of the top plate 3. A detection mechanism 6 is provided on the back of the pushing mechanism 5.

[0035] In this embodiment, such as Figure 3 As shown, a related lithium battery cell conveying mechanism should also be provided below the pushing mechanism 5. This conveying mechanism will transport the lithium battery cells that have completed stacking and adhesive bonding to the sealing device, so as to cooperate with the sealing device. The above-mentioned conveying mechanism is a commonly used conveying mechanism in existing soft-pack lithium battery cells and is prior art. Therefore, this invention will not elaborate on it here.

[0036] When the lithium battery cell is delivered to the bottom of the pushing mechanism 5, the pushing mechanism 5 will push the lithium battery cell between the cold pressing sealing mechanism 4 and the detection mechanism 6. The cold pressing sealing mechanism 4 performs cold pressing sealing, and the detection mechanism 6 performs synchronous detection during the cold pressing sealing process.

[0037] Furthermore, the cold-press sealing mechanism 4 includes a cold press 41 disposed at the top of the top plate 3. The bottom end of the cold press 41 penetrates the inner top wall of the top plate 3 and overlaps with a pressure column 42. The other end of the pressure column 42 is fixedly connected to a synchronization plate 43. The bottom end of the synchronization plate 43 is fixedly connected to synchronization columns 44 around its perimeter. The other end of the synchronization column 44 is fixedly connected to a buffer plate 45. The bottom end of the buffer plate 45 is fixedly connected to a buffer spring 46 around its perimeter. The other end of the buffer spring 46 is fixedly connected to a cold press plate 47.

[0038] Furthermore, a pressure sensor 451 is fixedly installed on the top of the buffer plate 45, and linear bearings 471 are fixedly installed on both sides of the top of the cold pressing plate 47. The other end of the linear bearings 471 is fixedly connected to the top plate 3, and a detection probe 472 is provided on the back of the cold pressing plate 47.

[0039] In this embodiment, the cold press 41 applies pressure to the pressure column 42, thereby driving the pressure column 42 to move downward. The synchronous plate 43 moves downward accordingly, and the buffer plate 45 connected to the synchronous column 44 drives the cold press plate 47 to move downward to achieve cold pressing. During the downward movement of the cold press plate 47, the pressure sensor 451 is in working condition. When the pressure reaches the set value, the pressure sensor 451 will feed back to the cold press 41, and the cold press 41 will stop applying pressure. The buffer spring 46 is provided to provide a buffer force between the cold press plate 47 and the cold press 41, thereby preventing damage to the lithium battery cell during the cold pressing process.

[0040] The linear bearing 471 is used to guide the cold-pressed plate 47.

[0041] The detection probe 472 is used for synchronous detection during the cold pressing process to prevent unexpected situations from occurring. Probe technology is now very mature and is used in various processing industries. It is an existing technology and will not be described in detail here.

[0042] Furthermore, the pushing mechanism 5 includes a pushing cylinder 51 fixedly installed at the bottom of the top plate 3. The extended end of the pushing cylinder 51 is fixedly connected to a synchronizing seat 52. Both sides of the bottom end of the synchronizing seat 52 are fixedly connected to stabilizing columns 53. The other end of the stabilizing column 53 is fixedly connected to a stabilizing plate 54.

[0043] Furthermore, a synchronization cylinder 55 is fixedly installed at the bottom center of the synchronization seat 52. The extended end of the synchronization cylinder 55 passes through the stabilizing plate 54 and is fixedly connected to a push plate 56. A limit plate 57 is fixedly installed on the back of the push plate 56.

[0044] In this embodiment, when the conveying mechanism transports the lithium battery cell that has been stacked and glued to the bottom of the pushing mechanism 5, the synchronizing cylinder 55 drives the pushing plate 56 to move to the side of the lithium battery cell, and then the pushing cylinder 51 drives the synchronizing seat 52 to move, thereby driving the pushing plate 56 to push the lithium battery cell between the detection mechanism 6 and the cold pressing sealing mechanism 4.

[0045] The number of limiting plates 57 is twice the number of cold-press sealing mechanisms 4, totaling six, and they correspond to the positions of the cold-press sealing mechanisms 4 to provide limiting protection on both sides of the lithium battery cell.

[0046] Compared to existing sealing devices, this application pushes the lithium battery cells to a separate location far from the conveyor belt for processing, thereby avoiding accidental contamination of other lithium battery cells on the conveyor belt during the sealing process.

[0047] Furthermore, the testing mechanism 6 includes connecting columns 61 fixedly installed on both sides of the top of the device base 1. The other end of the connecting column 61 is fixedly connected to a processing plate 62. The top of the processing plate 62 is provided with a testing groove 63. The inner side of the testing groove 63 is provided with a testing plate 64. The bottom end of the testing plate 64 is fixedly installed with a limiting seat 65. The other end of the limiting seat 65 is fixedly connected to the extension end of a telescopic cylinder 66. The telescopic cylinder 66 is fixedly connected to the device base 1.

[0048] Furthermore, a recovery plate 67 is provided on one side of the top of the telescopic cylinder 66, and the other end of the recovery plate 67 is fixedly connected to the extended end of the recovery cylinder 671. The recovery cylinder 671 is fixedly connected to the processing plate 62, and a recovery hopper 68 is provided on the other side of the telescopic cylinder 66. The recovery hopper 68 is fixedly connected to the device base 1.

[0049] In this embodiment, the number of detection plates 64 is the same as the number of cold-press sealing mechanisms 4, which is three. The detection plates 64 are existing lithium battery testing equipment, and the detection plates 64 are equipped with relevant testing structures.

[0050] When the cold-press sealing mechanism 4 performs cold-press sealing on the lithium battery cell, the detection plate 64 performs synchronous detection on the lithium battery. When a problem is detected, the detection plate 64 will provide feedback to the telescopic cylinder 66. The telescopic cylinder 66 will then move the detection plate 64 downwards. After the telescopic cylinder 66 extends and retracts, it will provide feedback to the recycling cylinder 671. The recycling cylinder 671 will then move the recycling plate 67, thereby pushing the problematic lithium battery at the detection plate 64 into the recycling hopper 68 to complete the recycling. All of the above feedback methods are completed by the PLC.

[0051] Furthermore, a reset mechanism 7 is provided on the back of the processing plate 62. The reset mechanism 7 includes a reset plate 71. The back of the reset plate 71 is fixedly connected to the extended end of the reset cylinder 72. The back of the reset cylinder 72 is fixedly connected to a support plate 73. One end of the support plate 73 is fixedly connected to the top plate 3, and the other end of the support plate 73 is fixedly connected to the device base 1.

[0052] In this embodiment, after the cold-press sealing and testing are completed, the reset cylinder 72 drives the reset plate 71 to move, thereby pushing the lithium battery that has completed the cold-press sealing and testing at the processing plate 62 back to the conveying mechanism, thus completing the sealing.

[0053] In use, when the conveying mechanism transports the stacked and glued lithium battery cells to the area below the pushing mechanism 5, the synchronous cylinder 55 drives the pushing plate 56 to move to the side of the lithium battery cell. Then, the pushing cylinder 51 drives the synchronous seat 52 to move, thereby driving the pushing plate 56 to push the lithium battery cell between the detection mechanism 6 and the cold-pressing sealing mechanism 4 (after pushing is completed, the pushing mechanism 5 resets). The cold press 41 then applies pressure to the pressure column 42, thereby driving the pressure column 42 to move downward. The synchronous plate 43 moves downward accordingly, and the buffer plate 45 connected to the synchronous column 44 drives the cold press plate 47 to move downward to achieve cold pressing. During the downward movement of the cold press plate 47, the pressure sensor 451 is in working condition. When the pressure reaches the set value, the pressure sensor 451 will give feedback to the cold press 41, and the cold press 41 will stop applying pressure. The buffer spring 46... The configuration provides a buffer between the cold pressing plate 47 and the cold press 41 to prevent damage to the lithium battery cell during the cold pressing process. When the cold pressing sealing mechanism 4 performs cold pressing sealing on the lithium battery cell, the detection plate 64 performs synchronous detection on the lithium battery. When a problem is detected, the detection plate 64 will provide feedback to the telescopic cylinder 66, which will then move the detection plate 64 downwards. After the telescopic cylinder 66 extends and retracts, it will provide feedback to the recovery cylinder 671, which will then move the recovery plate 67, thereby pushing the problematic lithium battery at the detection plate 64 into the recovery hopper 68 for recovery. After completing the cold pressing sealing and detection, the reset cylinder 72 moves the reset plate 71, thereby pushing the lithium battery at the processing plate 62 that has completed the cold pressing sealing and detection back to the conveying mechanism, thus completing the sealing. Specific Implementation Method Two

[0055] The sealing method of the sealing device for a soft-pack lithium battery cell with detection and recycling functions provided in this embodiment includes the following steps.

[0056] Step a: When the conveying mechanism delivers the stacked and glued lithium battery cell to the bottom of the pushing mechanism 5, the synchronous cylinder 55 drives the pushing plate 56 to move to the side of the lithium battery cell, and then the pushing cylinder 51 drives the synchronous seat 52 to move, thereby driving the pushing plate 56 to push the lithium battery cell between the detection mechanism 6 and the cold pressing sealing mechanism 4.

[0057] Step b: The cold press 41 applies pressure to the pressure column 42, thereby driving the pressure column 42 to move downward. The synchronous plate 43 moves downward accordingly, and the buffer plate 45 connected to the synchronous column 44 drives the cold press plate 47 to move downward to achieve cold pressing. During the downward movement of the cold press plate 47, the pressure sensor 451 is in working condition. When the pressure reaches the set value, the pressure sensor 451 will feed back to the cold press 41, and the cold press 41 will stop applying pressure.

[0058] Step c: When the cold-press sealing mechanism 4 performs cold-press sealing on the lithium battery cell, the detection plate 64 will perform synchronous detection on the lithium battery. When a problem is detected, the detection plate 64 will provide feedback to the telescopic cylinder 66. The telescopic cylinder 66 will then move the detection plate 64 downwards. After the telescopic cylinder 66 extends and retracts, it will provide feedback to the recycling cylinder 671. The recycling cylinder 671 will then move the recycling plate 67, thereby pushing the problematic lithium battery at the detection plate 64 into the recycling hopper 68 to complete the recycling.

[0059] Step d: After completing the cold-press sealing and testing, the reset cylinder 72 drives the reset plate 71 to move, thereby pushing the lithium battery that has completed the cold-press sealing and testing at the processing plate 62 back to the conveying mechanism, thus completing the sealing.

[0060] 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 sealing device for a soft-pack lithium battery cell with detection and recycling functions, comprising a device base (1), characterized in that: The device base (1) is fixedly installed with support columns (2) around the top. The other end of the support column (2) is fixedly connected to a top plate (3). The top of the top plate (3) is provided with a cold-press sealing mechanism (4). The bottom of the top plate (3) is provided with a pushing mechanism (5). The back of the pushing mechanism (5) is provided with a detection mechanism (6). The cold-press sealing mechanism (4) includes a cold press (41) disposed at the top of the top plate (3). The bottom end of the cold press (41) penetrates the inner top wall of the top plate (3) and overlaps with a pressure column (42). The other end of the pressure column (42) is fixedly connected to a synchronous plate (43). Synchronous columns (44) are fixedly connected to the bottom of the synchronous plate (43) around its perimeter. A buffer plate (45) is fixedly connected to the other end of the synchronous column (44). Buffer springs (46) are fixedly connected to the bottom of the buffer plate (45) around its perimeter. A cold press plate (47) is fixedly connected to the other end; a pressure sensor (451) is fixedly installed on the top of the buffer plate (45), and linear bearings (471) are fixedly installed on both sides of the top of the cold press plate (47). The other end of the linear bearings (471) is fixedly connected to the top plate (3). A detection probe (472) for synchronous detection during the cold pressing process is provided on the back of the cold press plate (47); the pressure sensor (451) is used to detect the cold pressing pressure and feed back to the cold press (41) when the pressure reaches the set value so that it stops applying pressure. The pushing mechanism (5) includes a pushing cylinder (51) fixedly installed at the bottom of the top plate (3). The extended end of the pushing cylinder (51) is fixedly connected to a synchronization seat (52). Both sides of the bottom end of the synchronization seat (52) are fixedly connected to stabilizing columns (53). The other end of the stabilizing column (53) is fixedly connected to a stabilizing plate (54). A synchronization cylinder (55) is fixedly installed in the middle of the bottom end of the synchronization seat (52). The extended end of the synchronization cylinder (55) passes through the stabilizing plate (54) and is fixedly connected to a pushing plate (56). A limit plate (57) is fixedly installed on the back of the pushing plate (56). The detection mechanism (6) includes connecting columns (61) fixedly installed on both sides of the top of the device base (1). The other end of the connecting column (61) is fixedly connected to a processing plate (62). The top of the processing plate (62) is provided with a detection groove (63). The inner side of the detection groove (63) is provided with a detection plate (64). The bottom end of the detection plate (64) is fixedly installed with a limiting seat (65). The other end of the limiting seat (65) is fixedly connected to the extension end of a telescopic cylinder (66). A recycling plate (67) is provided on one side of the top of the telescopic cylinder (66), and the other end of the recycling plate (67) is fixedly connected to the extended end of the recycling cylinder (671). A recycling hopper (68) is provided on the other side of the telescopic cylinder (66). When the detection plate (64) detects a problem with the lithium battery cell, it will send a signal to the telescopic cylinder (66). The telescopic cylinder (66) will drive the detection plate (64) to move downward, and then trigger the recycling cylinder (671) to drive the recycling plate (67) to move, pushing the defective lithium battery cell laterally to the recycling hopper (68) to complete the immediate recycling. A reset mechanism (7) is provided on the back of the processing plate (62). The reset mechanism (7) includes a reset plate (71). The back of the reset plate (71) is fixedly connected to the extended end of the reset cylinder (72). The back of the reset cylinder (72) is fixedly connected to a support plate (73). After the cold pressing and sealing and testing are completed, the reset cylinder (72) drives the reset plate (71) to move and pushes the qualified lithium battery cell on the processing plate (62) back to the conveying mechanism.

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