Battery cell performance test production line

Abstract

The utility model relates to battery production technical field discloses a kind of battery performance test production line, including sequentially arranged: battery loading station, battery feeding conveying line and battery loading device are arranged on it;Battery transfer station, battery transfer positioning device and battery transfer handling device are arranged on it;Battery performance test station, battery performance test device is arranged on it, to carry out performance test to battery;Connector defect detection station, connector defect detection device is arranged on it;And battery unloading station, battery unloading conveying line and battery unloading device are arranged on it.The utility model provides a kind of battery performance test production line, not only can automatically complete the performance test operation of battery, effectively improve battery performance test efficiency, and can effectively reduce the risk of battery damage, guarantee the test and production quality of battery whole.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a cell performance testing production line. Background Technology

[0002] Cell performance testing is an essential and crucial step in determining the quality of battery cell production.

[0003] In the existing technology, battery cell performance testing is generally done manually; that is, a person picks up the battery cell from the battery cell conveyor line and places it in the battery cell performance testing device to complete the performance testing operation.

[0004] During the testing process, the efficiency of cell testing is not only affected by the speed of worker operation, resulting in low testing efficiency; moreover, because the testing process requires manual contact with the cell, it is also prone to the following defects:

[0005] 1. If the electrostatic protection measures of workers or testing equipment are inadequate, the battery cells may be damaged due to static electricity.

[0006] 2. A battery cell generally includes the cell body, a cell connector for electrically connecting to the cell performance testing device to perform performance testing, and a flexible circuit board (PCB) positioned between the cell body and the connector. During testing, workers typically hold the cell body and connector with both hands and place them on the corresponding positions on the testing device. Therefore, improper handling during cell transfer can easily deform or damage the PCB, especially in cell structures where the large end face of the cell and the large end face of the connector are not on the same plane, or where the PCB is long. Manual testing cannot adequately guarantee the testing and production quality of the cells.

[0007] Therefore, designing a technology that can effectively complete automated performance testing of battery cells, improve the efficiency of battery cell performance testing, reduce manual intervention, and reduce damage to battery cells is of great significance for ensuring the production quality of battery cells. Utility Model Content

[0008] To address the shortcomings of the existing technology, this utility model provides a battery cell performance testing production line, which can not only automate the battery cell performance testing operation and effectively improve the battery cell performance testing efficiency, but also effectively reduce the risk of battery cell damage and ensure the overall testing and production quality of the battery cells.

[0009] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0010] This utility model provides a battery cell performance testing production line, comprising the following components arranged in sequence:

[0011] The battery cell loading station is equipped with a battery cell feeding conveyor line and a battery cell loading device for loading and conveying battery cells and switching the battery cells to the test placement state.

[0012] The cell transfer station is equipped with a cell transfer positioning device and a cell transfer handling device to limit and correct the position of the cells after they have been switched.

[0013] The cell performance testing station is equipped with a cell performance testing device to perform performance testing on the cells.

[0014] The connector defect detection station is equipped with a connector defect detection device to detect whether there are defects in the battery cell connectors.

[0015] It also includes a cell unloading station, which is equipped with a cell unloading conveyor line and a cell unloading device for the sorting, conveying, and unloading of cells after testing.

[0016] As one preferred embodiment, the cell feeding device includes:

[0017] An automatic cell positioning mechanism is used to automatically identify and position the cells on the cell feeding conveyor line;

[0018] A battery cell loading and handling robot is connected in communication with the battery cell automatic positioning mechanism to grab the battery cells on the battery cell feeding conveyor line, switch the placement state, and then transfer and load them onto the battery cell transfer and positioning device.

[0019] As one preferred embodiment, the battery cell transfer and positioning device includes:

[0020] The cell transfer and positioning mechanism is used to locate and correct the alignment of cells after they have been switched.

[0021] And a connector transfer and positioning mechanism, which is arranged adjacent to the battery cell transfer and positioning mechanism, is used to limit and correct the battery cell connector after it has been switched in its placement state along with the battery cell.

[0022] As one preferred embodiment, the battery cell transfer and handling device includes:

[0023] A cell transfer and handling mechanism is used to transfer and handle the cells after they have been limited and corrected by the cell transfer and positioning device to the cell performance testing device.

[0024] A connector transfer and handling mechanism is used to transfer and handle the battery cell connector, which has been limited and corrected by the battery cell transfer and positioning device, to the battery cell performance testing device.

[0025] A transfer and handling drive mechanism, with its drive end connected to the battery cell transfer and handling mechanism and the connector transfer and handling mechanism, is used to drive the battery cell transfer and handling mechanism and the connector transfer and handling mechanism to transport the battery cell and the battery cell connection;

[0026] And a transfer and handling identification mechanism, used to identify the location of the battery cells and / or battery cell connectors to be transferred to the battery cell performance testing device.

[0027] As one preferred embodiment, the cell performance testing device includes:

[0028] Multiple cell testing and positioning mechanisms are used to install and limit the cells to be tested;

[0029] It also includes multiple battery cell performance testing institutions, which are electrically connected to the battery cell connector to perform battery cell performance testing and determine whether the battery cell quality is up to standard.

[0030] As one preferred embodiment, the cell performance testing mechanism includes:

[0031] The microneedle test assembly is electrically connected to the performance test system to enable the placement of the cell connector and the performance testing of the cell.

[0032] A connector clamping assembly is provided adjacent to the microneedle test assembly to press the cell connector onto the microneedle test assembly, thereby achieving electrical conductivity between the cell connector and the performance test system.

[0033] As one preferred embodiment, the cell performance testing station is also equipped with a connector identification device that is connected to the performance testing system for reading codes and identifying the location of the cell connectors that are transferred to the cell performance testing device.

[0034] As one preferred embodiment, the connector defect detection device includes:

[0035] The code reading mechanism is communicatively connected to the battery cell performance testing device to read and identify the codes on the battery cell connectors after performance testing.

[0036] And CCD defect detection agencies, used to perform image recognition detection on battery cell connectors after performance testing to determine whether the quality of the battery cell connectors is qualified.

[0037] As one preferred embodiment, the cell unloading device is a cell unloading and handling robot, which is communicatively connected to the cell performance testing device and / or the connector defect detection device. After the cell has been tested, it resets its placement state and then transfers it to the cell unloading conveyor line.

[0038] As one preferred embodiment, the battery cell unloading and conveying line includes:

[0039] A qualified battery cell unloading conveyor line is used to test and unload qualified battery cell products.

[0040] And an NG cell unloading conveyor line, used to test the unloading and conveying of NG cell products.

[0041] In summary, this utility model has at least the following advantages:

[0042] 1. The battery cell performance testing production line provided by this utility model can not only automate the battery cell performance testing operation and effectively improve the battery cell performance testing efficiency, but also effectively reduce the risk of battery cell damage and ensure the overall testing and production quality of the battery cells.

[0043] 2. The battery cell performance testing production line provided by this utility model first switches the battery cell placement state and performs intermediate positioning and correction before loading the battery cell performance testing station for performance testing. It can meet the performance testing needs of batteries with long flexible circuit boards and where the large end face of the battery cell and the large end face of the battery cell connector are not on the same plane. The standardized operation can effectively ensure that the flexible circuit board of the battery cell will not be torn or damaged during the testing process, thereby effectively ensuring the overall testing and production quality of the battery cell.

[0044] 3. The battery cell performance testing production line provided by this utility model is equipped with a connector defect detection station after the battery cell performance testing station. This station can perform quality inspection on the battery cell performance testing device and the battery cell connector after the test is completed, so as to further and effectively ensure the overall production quality of the battery cell. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall structure of the battery cell performance testing production line in this embodiment of the present invention.

[0046] Figure 2 This is a schematic diagram of the battery cell loading station in an embodiment of this utility model.

[0047] Figure 3 This is a schematic diagram of the structure of the battery cell transfer station in an embodiment of this utility model.

[0048] Figure 4 This is a schematic diagram of the structure of the cell performance testing station in an embodiment of this utility model.

[0049] Figure 5 This is a schematic diagram of the connector defect detection station / connector defect detection device in an embodiment of this utility model.

[0050] Figure 6This is a schematic diagram of the cell unloading station in an embodiment of this utility model.

[0051] Figure label:

[0052] 10. Battery cell loading station; 11. Battery cell feeding conveyor line; 12. Battery cell loading device; 121. Automatic battery cell positioning mechanism; 1211. CCD camera positioning assembly; 1212. CCD positioning drive assembly; 122. Battery cell loading and handling robot; 1221. Battery cell loading assembly; 1222. Connector loading assembly; 1223. Rotary drive assembly; 1224. Loading drive assembly;

[0053] 20. Battery cell transfer station; 21. Battery cell transfer positioning device; 211. Battery cell transfer positioning mechanism; 212. Connector transfer positioning mechanism; 2121. Connector transfer positioning assembly; 2122. Flexible circuit board transfer positioning assembly; 22. Battery cell transfer and handling device; 221. Battery cell transfer and handling mechanism; 222. Connector transfer and handling mechanism; 223. Transfer and handling drive mechanism; 224. Transfer and handling identification mechanism;

[0054] 30. Cell performance testing station; 31. Cell performance testing device; 311. Testing positioning mechanism; 3111. Cell placement platform; 3112. Cell pressing block; 3113. Pressing block driving assembly; 312. Cell performance testing mechanism; 3121. Microneedle testing assembly; 3122. Connector clamping assembly; 32. Connector identification device; 321. Connector code reader; 322. Connector image recognition mechanism;

[0055] 40. Connector defect detection station; 41. Connector defect detection device; 411. Code reading mechanism; 412. CCD defect detection mechanism;

[0056] 50. Battery cell unloading station; 51. Battery cell unloading conveyor line; 511. Qualified battery cell unloading conveyor line; 512. NG battery cell unloading conveyor line; 52. Battery cell unloading device. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0058] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0059] Please see the appendix Figure 1-6 The battery cell performance testing production line of this utility model includes a battery cell loading station 10, a battery cell transfer station 20, a battery cell performance testing station 30, a connector defect detection station 40, and a battery cell unloading station 50 arranged in sequence. The battery cell loading station 10 is equipped with a battery cell feeding conveyor line 11 and a battery cell loading device 12 for loading and conveying the battery cells and switching them to the test placement state. The battery cell transfer station 20 is equipped with a battery cell transfer positioning device 21 and a battery cell transfer handling device 22 for limiting and correcting the battery cells after switching placement states. The battery cell performance testing station 30 is equipped with a battery cell performance testing device 31 for performing performance tests on the battery cells. The connector defect detection station 40 is equipped with a connector defect detection device 41 for detecting whether there are defects in the battery cell connectors. The battery cell unloading station 50 is equipped with a battery cell unloading conveyor line 51 and a battery cell unloading device 52 for classifying, conveying, and unloading the tested battery cells.

[0060] The battery cell performance testing production line in this embodiment not only automates the battery cell performance testing process, effectively improving testing efficiency and reducing the risk of battery cell damage, thus ensuring the overall testing and production quality of the batteries; but also, during the testing process, the battery cells are first switched in their placement state and corrected for positioning before being loaded onto the battery cell performance testing station 30 for performance testing. This allows for the testing of batteries with long flexible circuit boards and where the large end face of the battery cell and the large end face of the battery cell connector are not on the same plane. Standardized operation effectively ensures that the flexible circuit board of the battery cell is not deformed or damaged during testing, thereby effectively guaranteeing the overall testing and production quality of the batteries. In addition, after the battery cell performance testing station 30, the battery cell performance testing production line in this embodiment also includes a connector defect detection station 40, which can perform quality inspection on the electrically connected battery cell performance testing device 31 and the battery cell connector after testing, further effectively guaranteeing the overall production quality of the batteries.

[0061] Please refer to the appendix for further details. Figure 2In some embodiments, the battery cell loading device 12 includes an automatic battery cell positioning mechanism 121 and a battery cell loading and handling robot 122 communicatively connected to the automatic battery cell positioning mechanism 121. The automatic battery cell positioning mechanism 121 is used to automatically identify and position the battery cells on the battery cell feeding conveyor line 11. Preferably, the automatic battery cell positioning mechanism 121 is a CCD camera positioning mechanism, which mainly achieves battery cell identification and positioning by acquiring images of the battery cells on the battery cell feeding conveyor line 11. Further, the automatic battery cell positioning mechanism 121 includes a CCD camera positioning component 1211 for image capture and positioning of the battery cells, and a CCD positioning drive component 1212 for driving the CCD camera positioning component 1211 to acquire images of the battery cells. Preferably, the CCD positioning drive component 1212 is a motor drive component or a cylinder drive component.

[0062] The battery cell loading and handling robot 122 is used to grab battery cells on the battery cell feeding conveyor line 11, switch their placement state, and then transfer them to the battery cell transfer and positioning device 21. Further, the battery cell loading and handling robot 122 includes a battery cell loading assembly 1221 for grabbing the main body of the battery cell to load the main body, a connector loading assembly 1222 for grabbing the connector part of the battery cell to load the connector, a rotary drive assembly 1223 connected to the battery cell loading assembly 1221 and the connector loading assembly 1222 for rotating the battery cell loading assembly 1221 and the connector loading assembly 1222, and a loading drive assembly 1224 connected to the rotary drive assembly 1223 for driving the battery cell loading assembly 1221 and the connector loading assembly 1222 to grab the battery cell body and the connector. Preferably, the battery cell loading assembly 1221 and the connector loading assembly 1222 are both suction cup assemblies or suction nozzle assemblies; the rotary drive assembly 1223 is a motor drive assembly, and the loading drive assembly 1224 is a multi-axis drive assembly.

[0063] When it is necessary to load the battery cell, the loading drive component 1224 is activated, driving the battery cell loading component 1221 and the connector loading component 1222 to approach the battery cell to be loaded; then, the battery cell loading component 1221 and the connector loading component 1222 are activated, respectively gripping the battery cell body and the battery cell connector; the loading drive component 1224 is activated again, driving the battery cell as a whole to move towards the battery cell transfer station 20; at the same time, the rotation drive component 1223 is activated, driving the battery cell body and the battery cell connector to rotate to the placement state that meets the test requirements.

[0064] Please refer to the appendix for further details. Figure 3In some embodiments, the battery cell transfer and positioning device 21 includes a battery cell transfer and positioning mechanism 211 and a connector transfer and positioning mechanism 212 disposed adjacent to the battery cell transfer and positioning mechanism 211. The battery cell transfer and positioning mechanism 211 is used to position and correct the battery cell after its placement state has been switched; preferably, the battery cell transfer and positioning mechanism 211 is a suction cup positioning mechanism. The connector transfer and positioning mechanism 212 is used to limit and correct the placement of the battery cell connector after its placement state has been switched along with the battery cell; further, the connector transfer and positioning mechanism 212 includes a connector transfer and positioning component 2121 for transferring and positioning the battery cell connector, and a flexible circuit board transfer and positioning component 2122 for transferring and positioning the flexible circuit board. Preferably, the connector transfer and positioning component 2121 is a support block positioning component, and the flexible circuit board transfer and positioning component 2122 is a combined positioning component consisting of a gripper and a pressure plate.

[0065] When the battery cell is transferred to the battery cell transfer positioning device 21, the battery cell transfer positioning mechanism 211 is activated first to adsorb and position the battery cell body; then, the connector transfer positioning component 2121 and the flexible board transfer positioning component 2122 are activated to position and correct the battery cell connector and the battery cell flexible board.

[0066] Please refer to the appendix for further details. Figure 3 In some embodiments, the battery cell transfer and handling device 22 includes a battery cell transfer and handling mechanism 221, a connector transfer and handling mechanism 222, a transfer and handling drive mechanism 223 connected to the battery cell transfer and handling mechanism 221 and the connector transfer and handling mechanism 222 at its drive end, and a transfer and handling identification mechanism 224 disposed on the drive end of the transfer and handling drive mechanism 223. The battery cell transfer and handling mechanism 221 is used to transfer and handle the battery cell after it has been limited and corrected by the battery cell transfer and positioning device to the battery cell performance testing device 31; the connector transfer and handling mechanism 222 is used to transfer and handle the battery cell connector after it has been limited and corrected by the battery cell transfer and positioning device 21 to the battery cell performance testing device 31; the transfer and handling drive mechanism 223 is used to drive the battery cell transfer and handling mechanism 221 and the connector transfer and handling mechanism 222 to transport the battery cell and battery cell connector; and the transfer and handling identification mechanism 224 is used to identify the position of the battery cell and / or battery cell connector to be transferred to the battery cell performance testing device 31. Preferably, the battery cell transfer and handling mechanism 221 and the connector transfer and handling mechanism 222 are both suction cup handling mechanisms and suction nozzle handling mechanisms; the transfer and handling drive mechanism 223 is a multi-axis drive assembly; and the transfer and handling identification mechanism 224 is a CCD camera identification mechanism.

[0067] After the battery cell and battery cell connector are positioned and corrected by the battery cell transfer and positioning device 21, the transfer and transport drive mechanism 223 is activated, driving the battery cell transfer and transport mechanism 221 and the connector transfer and transport mechanism 222 to approach the positioned and corrected battery cell. During this process, the transfer and transport identification mechanism 224 can simultaneously identify the battery cell and battery cell connector, or one of the battery cell and battery cell connector, in place. Subsequently, the battery cell transfer and transport mechanism 221 and the connector transfer and transport mechanism 222 are activated to grab the positioned and corrected battery cell body and battery cell connector respectively. Then, the transfer and transport drive mechanism 223 is activated again, driving the battery cell body and battery cell connector to be transported to the battery cell performance testing device 31.

[0068] Please refer to the appendix for further details. Figure 4 In some embodiments, the battery cell performance testing device 31 includes multiple battery cell testing positioning mechanisms 311 and multiple battery cell performance testing mechanisms 312 electrically connected to the battery cell connector. The battery cell testing positioning mechanism 311 is used to install and limit the battery cell to be tested; further, the battery cell testing positioning mechanism 311 includes a battery cell placement platform, a battery cell pressing block 3112 for fully limiting the battery cell, and a pressing block driving assembly 3113 for driving the pressing block 3112 to fully limit the battery cell; preferably, the pressing block driving assembly 3113 is a motor driving assembly or a cylinder driving assembly. The battery cell performance testing mechanism 312 is used to perform performance testing of the battery cell and determine whether the battery cell quality is qualified; further, the battery cell performance testing mechanism 312 includes a micro-needle testing assembly 3121 electrically connected to the performance testing system, and a connector clamping assembly 3122 disposed adjacent to the micro-needle testing assembly 3121. The microneedle testing component 3121 is used to place the battery cell connector and perform performance testing on the battery cell; the connector clamping component 3122 is used to press the battery cell connector onto the microneedle testing component 3121 to achieve electrical conductivity between the battery cell connector and the performance testing system. Preferably, the microneedle testing component 3121 is a microneedle module in the prior art; the connector clamping component 3122 is a swing block clamping component; the specific structure of the two components is not limited, as long as they can achieve the corresponding functions.

[0069] In some embodiments, the battery cell performance testing station 30 is also provided with a connector identification device 32 that is communicatively connected to the performance testing system, for reading and identifying the battery cell connectors that are transferred to the battery cell performance testing device 31, so as to facilitate the traceability of the battery cells; preferably, the connector identification device 32 includes a connector reader 321 for reading information such as the connector serial number, and a connector image recognition mechanism 322 for capturing and locating the connector using CCD images.

[0070] During the battery cell performance test, the connector identification device 32 first acquires product information such as the connector's serial number, image, and positioning, and transmits it to the performance testing system. Subsequently, the pressure block drive assembly 3113 is activated, driving the battery cell pressure block 3112 to fully limit the battery cell placed on the battery cell placement platform. Then, the connector clamping assembly 3122 is activated, clamping the battery cell connector onto the micro-needle test assembly 3121, which is electrically connected to the performance testing system, to complete the battery cell performance test. After the test is completed, the connector clamping assembly 3122 is activated again to release the clamping on the battery cell connector, facilitating the subsequent unloading of the battery cell assembly.

[0071] Please refer to the appendix for further details. Figure 5 In some embodiments, the connector defect detection device 41 includes a code reading mechanism 411, which is communicatively connected to the cell performance testing device 31 and used to read and identify the code of the cell connector after performance testing, and a CCD defect detection mechanism 412, which is used to perform image recognition detection on the cell connector after performance testing and determine whether the quality of the cell connector is qualified. The connector defect detection device 41 is designed to perform quality inspection on the cell connector after it is electrically connected to the cell performance testing device 31 and has completed the test, so as to further and effectively ensure the overall production quality of the cell and prevent the cell connector that is judged to be qualified after the cell performance test is completed but is damaged during the unloading process from the cell performance testing device 31 from the qualified product.

[0072] Please refer to the appendix for further details. Figure 6 In some embodiments, the cell unloading device 52 is a cell unloading and handling robot that is simultaneously connected to the cell performance testing device 31 and the connector defect detection device 41, or to one of the cell performance testing device 31 and the connector defect detection device 41. It can grab the cells after testing, reset their placement, and then transfer them to the cell unloading conveyor line 51. The specific structural design is the same as that of the cell loading and handling robot 122, and therefore will not be described again here. Furthermore, the cell unloading conveyor line 51 includes a qualified cell unloading conveyor line 511 for unloading qualified cell products and an NG cell unloading conveyor line 512 for unloading NG cell products; this effectively completes the classification and unloading of cell products, preventing unqualified products from being mixed with qualified products, and further effectively improving the overall quality stability of the cells.

[0073] As can be seen from the technical solutions of the above embodiments, the present invention provides a battery cell performance testing production line, which can not only automate the battery cell performance testing operation and effectively improve the battery cell performance testing efficiency, but also effectively reduce the risk of battery cell damage and ensure the overall testing and production quality of the battery cell.

[0074] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0075] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0076] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0077] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0078] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A cell performance testing production line, characterized in that, Including sequential settings: The cell loading station (10) is equipped with a cell feeding conveyor line (11) and a cell loading device (12) for loading and conveying the cells and switching the cells to the test placement state. The cell transfer station (20) is equipped with a cell transfer positioning device (21) and a cell transfer handling device (22) to limit and correct the position of the cells after switching their placement status. A cell performance testing station (30) is provided with a cell performance testing device (31) for testing the performance of the cells; A connector defect detection station (40) is provided with a connector defect detection device (41) to detect whether there are defects in the battery cell connector; And a cell unloading station (50), which is equipped with a cell unloading conveyor line (51) and a cell unloading device (52) for the classification, conveying and unloading of the cells after testing.

2. The cell performance testing production line according to claim 1, characterized in that, The battery cell feeding device (12) includes: The automatic cell positioning mechanism (121) is used to automatically identify and position the cells on the cell feeding conveyor line (11); And a battery cell loading and handling robot (122) is connected in communication with the battery cell automatic positioning mechanism (121) to grab the battery cells on the battery cell feeding conveyor line (11), and after switching the placement state, transfer and load them onto the battery cell transfer and positioning device (21).

3. The cell performance testing production line according to claim 1, characterized in that, The battery cell transfer and positioning device (21) includes: The cell transfer and positioning mechanism (211) is used to position and correct the alignment of the cells after the cell placement state has been switched. And a connector transfer positioning mechanism (212) is arranged adjacent to the cell transfer positioning mechanism (211) to limit and correct the positioning of the cell connector after it has been switched along with the cell.

4. The cell performance testing production line according to claim 1, characterized in that, The battery cell transfer and handling device (22) includes: The cell transfer and handling mechanism (221) is used to transfer and handle the cells after they have been limited and corrected by the cell transfer and positioning device (21) to the cell performance testing device (31); The connector transfer and handling mechanism (222) is used to transfer and handle the battery cell connector after it has been limited and corrected by the battery cell transfer and positioning device (21) to the battery cell performance testing device (31); A transfer and handling drive mechanism (223) is connected at its drive end to the battery cell transfer and handling mechanism (221) and the connector transfer and handling mechanism (222) to drive the battery cell transfer and handling mechanism (221) and the connector transfer and handling mechanism (222) to transport the battery cell and the battery cell connection. And a transfer and handling identification mechanism (224) for identifying the position of the battery cell and / or battery cell connector to be transferred to the battery cell performance testing device (31).

5. The cell performance testing production line according to claim 1, characterized in that, The cell performance testing device (31) includes: Multiple cell testing and positioning mechanisms (311) are used to install and limit the cells to be tested; And multiple cell performance testing institutions (312), which are electrically connected to the cell connector to perform cell performance testing and determine whether the cell quality is qualified.

6. The cell performance testing production line according to claim 5, characterized in that, The cell performance testing mechanism (312) includes: The microneedle test assembly (3121) is electrically connected to the performance test system to enable the placement of the cell connector and the performance testing of the cell. And a connector clamping assembly (3122) is disposed adjacent to the microneedle test assembly (3121) to press the cell connector onto the microneedle test assembly (3121) to achieve electrical conduction between the cell connector and the performance test system.

7. The cell performance testing production line according to claim 5, characterized in that, The battery cell performance testing station (30) is also equipped with a connector identification device (32) that is connected to the performance testing system for reading codes and identifying the location of the battery cell connectors that are transferred to the battery cell performance testing device (31).

8. The cell performance testing production line according to claim 1, characterized in that, The connector defect detection device (41) includes: The code reading mechanism (411) is communicatively connected to the cell performance testing device (31) to read and identify the code of the cell connector after performance testing; And a CCD defect detection agency (412) is used to perform image recognition detection on the battery cell connector after performance testing to determine whether the battery cell connector is of qualified quality.

9. The cell performance testing production line according to claim 1, characterized in that, The cell unloading device (52) is a cell unloading and handling robot, which is connected in communication with the cell performance testing device (31) and / or the connector defect detection device (41). After the cell has been tested, it is reset in its placement state and then transferred to the cell unloading conveyor line (51).

10. The cell performance testing production line according to claim 1, characterized in that, The cell unloading conveyor line (51) includes: The qualified battery cell unloading conveyor line (511) is used to test the unloading and conveying of qualified battery cell products; And an NG cell unloading conveyor line (512) for testing the unloading and conveying of NG cell products.

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