Battery cell sorting and detecting equipment, battery cell sorting and detecting method and battery cell production line

Abstract

The invention relates to the field of battery cells, and discloses battery cell sorting and detecting equipment, a battery cell sorting and detecting method and a battery cell production line. A code scanning unit of the code scanning and sorting module is arranged above the incoming material drawstring and used for identifying the to-be-sorted battery cells on the incoming material drawstring, and the connection module is arranged between the discharging end of the incoming material drawstring and the feeding ends of the sorting drawstrings; the data reading and analyzing module is used for grading the to-be-sorted battery cells based on the identified whole-process key production constants of the to-be-sorted battery cells and sorting the to-be-sorted battery cells to normal gear drawstrings or NG battery cell drawstrings from incoming material drawstrings through the connection module; and the human body dynamic analysis module is used for detecting whether the sorting action of the sorting worker on the to-be-sorted battery cells on the sorting drawstring conforms to the preset sorting action or not. According to the battery cell sorting and detecting equipment, the battery cell sorting and detecting method and the battery cell production line, the battery cells can be better sorted, and the mistake that sorting workers place the battery cells by mistake can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the field of battery cells, and particularly to a battery cell sorting and detecting device, a battery cell sorting and detecting method, and a battery cell production line. Background Art

[0002] Currently, in the battery production industry, battery cell sorters mechanically complete battery grading according to fixed battery grades. The current battery cell sorters do not have the function of processing battery cell data, cannot flexibly and automatically adjust the sorting positions of incoming battery cells according to the battery cell data, and cannot track whether the sorting workers correctly place the sorted battery cells in appropriate positions. In particular, after the battery cell sorter switches the battery cell specifications, it is particularly easy for the sorting workers to place the battery cells in the wrong positions.

[0003] In view of this, it is necessary to design a battery cell sorting and detecting device, a battery cell sorting and detecting method, and a battery cell production line, which can achieve better sorting of battery cells and effectively avoid the mistakes of sorting workers in misplacement. Summary of the Invention

[0004] The purpose of the present invention is to provide a battery cell sorting and detecting device, a battery cell sorting and detecting method, and a battery cell production line, which can achieve better sorting of battery cells and effectively avoid the mistakes of sorting workers in misplacement.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A battery cell sorting and detecting device includes:

[0007] A data reading and analyzing module, configured to collect key production parameters of all processes of the battery cells to be sorted, and form a database of all processes;

[0008] A code scanning and sorting module, which is provided with an incoming material pulling belt, a code scanning unit, a connection module, and several sorting pulling belts. The several sorting pulling belts include at least one normal grade pulling belt and at least one NG battery cell pulling belt. The connection module and the code scanning unit are respectively electrically connected to the data reading and analyzing module. The code scanning unit is arranged above the incoming material pulling belt to identify the battery cells to be sorted on the incoming material pulling belt. The connection module is arranged between the discharging end of the incoming material pulling belt and the feeding ends of the several sorting pulling belts. The data reading and analyzing module classifies the battery cells to be sorted based on the key production constants of all processes of the identified battery cells to be sorted, and sorts the battery cells to be sorted from the incoming material pulling belt to the normal grade pulling belt or the NG battery cell pulling belt through the connection module;

[0009] The human body dynamic analysis module is arranged at the discharge end of several of the sorting belts, and is used to detect whether the sorting actions of the sorting workers on the battery cells to be sorted on the sorting belts conform to the preset sorting actions, and to issue a warning after detecting that the sorting actions of the sorting workers do not conform to the preset sorting actions.

[0010] Optionally, the human body dynamic analysis module includes an industrial computer and a detection camera for detecting the sorting action of the sorting worker, and the industrial computer is connected to the detection camera;

[0011] The preset sorting action includes a material picking action and a material placing action, and a material picking position of the material picking action and a material placing position of the material placing action have a preset corresponding relationship.

[0012] Optionally, first anti-drop baffles are respectively provided on opposite sides of the incoming material drawstring, and the first anti-drop baffles are parallel to the transport direction of the incoming material drawstring, and the distance between the first anti-drop baffles on both sides is adjustable;

[0013] Second anti-drop baffles are respectively arranged on two opposite sides of the sorting draw belt, the second anti-drop baffles are parallel to the transport direction of the sorting draw belt, and the distance between the second anti-drop baffles on both sides is adjustable.

[0014] Optionally, the battery cell sorting and testing equipment further includes an equipment operation analysis module;

[0015] The equipment operation analysis module includes:

[0016] The statistical unit is used to count the timing of each mechanism of the equipment to analyze the bottleneck position;

[0017] A monitoring unit, used to monitor the working status of each electrical component;

[0018] The changeover unit is used to control the position of the first anti-drop baffle plate beside the incoming material drawing belt and the second anti-drop baffle plates beside each sorting drawing belt.

[0019] Optionally, the docking module includes a docking conveyor belt assembly and a docking drive module, and the docking drive module is used to drive the docking conveyor belt assembly to translate along a set direction so that the docking conveyor belt assembly docks with the NG battery cell pull belt or the normal gear pull belt.

[0020] Optionally, the connecting conveyor belt assembly also includes a conveyor belt and a stop assembly; the conveying direction of the conveyor belt is the same as the conveying direction of the incoming material pull belt and the conveying direction of the sorting pull belt, and is perpendicular to the set direction, the stop assembly is arranged at the discharge end of the conveyor belt, the conveying surface of the conveyor belt is not higher than the conveying surface of the incoming material pull belt, and the stop assembly includes a liftable lifting door, and a transition roller is arranged on the top of the lifting door.

[0021] A cell sorting and detection method comprises the following steps:

[0022] S01. Collect the key production parameters of the entire process of each batch of cells to be sorted, and form a database of the entire process;

[0023] S02, identifying the cells to be sorted on the incoming material pull belt, classifying the cells to be sorted based on the key production constants of the entire process of the identified cells to be sorted, and sorting the cells to be sorted from the incoming material pull belt to the normal gear pull belt or the NG cell pull belt through the docking module;

[0024] S03, detecting whether the sorting action of the sorting worker on the battery cells to be sorted on the sorting pull belt conforms to the preset sorting action, and issuing a warning after detecting that the sorting action of the sorting worker does not conform to the preset sorting action.

[0025] Optionally, identifying the cells to be sorted on the incoming material pull belt, and then including:

[0026] S0201, detect whether the battery cell to be sorted is an abnormal battery cell; if not, execute step S0202; if so, execute step S0203;

[0027] S0202, the battery cells to be sorted are transported to the normal gear pull belt of the corresponding gear;

[0028] S0203, tracing the production batch of the abnormal battery cell from the full-process database, and obtaining the full-process key production parameters of the production batch of the abnormal battery cell;

[0029] S0204, obtaining the key production parameters of all processes of the production batch of normal battery cells, comparing the key production parameters of all processes of the production batch of normal battery cells with the key production parameters of all processes of the production batch of abnormal battery cells one by one, and finding out the abnormal parameters among the key production parameters of all processes of the production batch of abnormal battery cells;

[0030] S0205. Check the processes corresponding to the abnormal parameters.

[0031] Optionally, the key production parameters of the whole process include:

[0032] The formula ratio in the feeding process; the stirring time, slurry viscosity and slurry fineness in the stirring process; the coating surface density and electrode thickness in the coating process; the baking temperature and electrode water content in the baking process; the injection volume and immersion time in the injection process; the aging time in the aging process; the formation time in the formation process; the volume separation time in the volume separation process; and the sorting action in the sorting process.

[0033] Optionally, it is detected whether the sorting action of the sorting worker on the battery cells to be sorted on the sorting belt conforms to a preset sorting action. The determination steps are as follows:

[0034] S031. Detect the position where the sorting worker picks up the workpiece, and record the position where the workpiece is picked up as the material taking position;

[0035] S032. Detect the position where the sorting worker places the workpiece, and record the position where the workpiece is placed as the material placing position;

[0036] S033. Determine whether there is a preset corresponding relationship between the material taking position and the material placing position. If so, the sorting action of the sorting worker is correct; if not, the sorting action is incorrect.

[0037] Optionally, it is determined whether the battery cell to be sorted is an abnormal battery cell. Specifically:

[0038] S021. Detect the performance parameters of the battery cell to be sorted;

[0039] S022. Compare the performance parameters of the battery cell to be sorted with the performance parameters of a normal battery cell to determine whether the battery cell to be sorted is qualified or unqualified;

[0040] S022. If the battery cell to be sorted is determined to be unqualified, it is regarded as detecting an abnormal battery cell, and the abnormal battery cell is conveyed to the NG battery cell belt.

[0041] Optionally, the processes corresponding to the abnormal parameters are checked, including:

[0042] S02051. Send the abnormal parameters to the networked terminal of the process person in charge;

[0043] S02052. The process person in charge uses the checking module to check the process equipment and process parameters.

[0044] A battery cell production line applies the battery cell sorting and detecting method described in any one of the above.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] In an embodiment of the present invention, the data reading and analysis module forms a full-process database by collecting the key parameters of the entire process of the battery cells to be sorted, and the scanning code sorting module identifies the battery cells. Then, the data reading and analysis module can find out the key production parameters of the entire process of the battery cells according to the identified battery cells, and then grade the battery cells based on the key production parameters of the entire process, and then sort the battery cells corresponding to different levels into different sorting belts, so as to realize automatic sorting of battery cells at each level; after the battery cells are discharged along the sorting belts, the human body dynamic analysis module detects whether the sorting actions of the sorting workers are in accordance with the preset sorting actions, so as to avoid the problem of the sorting workers mixing battery cells of different levels into the same material tray, and effectively avoid the occurrence of the situation where the sorting workers mistakenly place the battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0048] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0049] Figure 1 A three-dimensional schematic diagram of a cell sorting and testing device provided in an embodiment of the present invention;

[0050] Figure 2 A schematic top view of a cell sorting and testing device provided in an embodiment of the present invention;

[0051] Figure 3 for Figure 2 A magnified schematic diagram of position A in the middle;

[0052] Figure 4 A three-dimensional schematic diagram of a docking module provided in an embodiment of the present invention;

[0053] Figure 5 for Figure 4 A magnified schematic diagram of position B in the middle;

[0054] Figure 6 A schematic diagram of a flow chart of a cell sorting and detection method provided in an embodiment of the present invention;

[0055] Figure 7 A schematic diagram of the data processing flow of the full-process database provided by an embodiment of the present invention;

[0056] Figure 8 A schematic diagram of a process for detecting and sorting whether a cell is an abnormal cell according to an embodiment of the present invention;

[0057] Figure 9 A schematic diagram of a flow chart for detecting whether a sorting action is correct provided by an embodiment of the present invention;

[0058] Figure 10 A schematic diagram of a detection process of an abnormal battery cell provided by an embodiment of the present invention;

[0059] Figure 11 A flowchart of the process corresponding to the abnormal parameter troubleshooting provided in an embodiment of the present invention.

[0060] Illustrations: 1. Incoming material pull belt; 11. First anti-drop baffle; 2. Docking module; 21. Docking conveyor belt assembly; 211. Transport belt; 212. Stop assembly; 213. Transition roller; 22. Docking drive module; 301. Second anti-drop baffle; 31. Normal gear pull belt; 32. NG battery cell pull belt; 41. Detection camera. DETAILED DESCRIPTION

[0061] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0063] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0064] Embodiment 1

[0065] The present embodiment discloses a battery cell sorting and detection device, which can be helpful for automatically sorting battery cells of different levels and avoids the situation where battery cells of different levels are mixed.

[0066] Battery cell sorting and testing equipment includes:

[0067] The data reading and analysis module is used to collect the key production parameters of the entire process of the battery cells to be sorted and form a database of the entire process. In this embodiment, the battery cells to be sorted are graded based on the key production parameters of the entire process of the battery cells to be sorted. The specific grading conditions can be determined according to the actual production conditions and the requirements of the required battery cells.

[0068] The device is provided with an incoming material pull belt 1, a code scanning unit, a connection module 2 and several sorting pull belts, wherein the several sorting pull belts include at least one normal gear pull belt 31 and at least one NG battery cell pull belt 32, and the connection module 2 and the code scanning unit are electrically connected to the data reading and analysis module respectively; the code scanning unit is arranged above the incoming material pull belt 1 for identifying the battery cells to be sorted on the incoming material pull belt 1, and the connection module 2 is arranged between the discharge end of the incoming material pull belt 1 and the feed end of several sorting pull belts; the data reading and analysis module classifies the battery cells to be sorted based on the key production constants of the whole process of the identified battery cells to be sorted, and sorts the battery cells to be sorted from the incoming material pull belt 1 to the normal gear pull belt 31 or the NG battery cell pull belt 32 through the connection module 2. Classification refers to the grading of battery cells to be sorted of one specification, rather than the grading of battery cells to be sorted of several specifications, which can effectively separate the superior, qualified and abnormal battery cells of the same specification to be sorted.

[0069] The incoming material pull belt 1 transports the battery cells of the previous process to the scanning station. The scanning unit on the top scans the battery cells on the scanning station and sends the scanning information to the data reading and analysis module. The data reading and analysis module finds the key production parameters of the battery cells in the whole process based on the scanning information, and then grades the battery cells according to the key production parameters of the whole process to distinguish between superior products, qualified products and abnormal batteries, etc. Then the connecting module 2 transfers the battery cells from the incoming material pull belt 1 to the normal gear pull belt 31 or NG battery cell pull belt 32 of the corresponding level for output.

[0070] The human body motion analysis module is arranged at the discharging ends of several sorting belts, and is used to detect whether the sorting actions of the sorting workers on the cells to be sorted on the sorting belts conform to the preset sorting actions. After detecting that the sorting actions of the sorting workers do not conform to the preset sorting actions, a warning is issued. It should be noted that since the cells output by one sorting belt may be placed in two or more bins, and the cells output by another sorting belt may only need one bin, for example, the number of qualified products is much larger than the number of abnormal cells; therefore, after switching the cell specifications, it is very easy for sorting workers to mix up the cells. In this embodiment, by setting the human body motion analysis module, the situation of mixing cells of different levels is effectively avoided.

[0071] In this embodiment, through the data reading and analysis module, the barcode scanning and sorting module, and the human body motion analysis module, the sorting of various specifications of cells can be realized, and there will be no situation of cell mixing.

[0072] Optionally, the human body motion analysis module includes an industrial control computer and a detection camera 41 for detecting the sorting actions of the sorting workers, and the industrial control computer is connected to the detection camera 41; the preset sorting actions include a material taking action and a material placing action, and there is a preset corresponding relationship between the material taking position of the material taking action and the material placing position of the material placing action. Specifically, in this embodiment, the actions of the sorting workers are detected by the detection camera 41 to determine whether there is a preset corresponding relationship between the material taking position and the material placing position of the sorting workers. If there is, it means that the sorting is correct; if not, it means that the sorting is incorrect and a reminder is needed.

[0073] Optionally, first anti-falling baffles 11 are respectively arranged on the opposite sides of the incoming material belt 1, and the first anti-falling baffles 11 are parallel to the transportation direction of the incoming material belt 1, and the distance between the first anti-falling baffles 11 on both sides is adjustable; second anti-falling baffles 301 are respectively arranged on the opposite sides of the sorting belt, and the second anti-falling baffles 301 are parallel to the transportation direction of the sorting belt, and the distance between the second anti-falling baffles 301 on both sides is adjustable.

[0074] In this embodiment, the distance between the first anti-falling baffles 11 on both sides is adjusted by the first adjusting cylinder, and the distance between the second anti-falling baffles 301 on both sides is adjusted by the second adjusting cylinder, so as to adapt to the conveying requirements of cells of different widths.

[0075] Optionally, the battery cell sorting and detection method also includes an equipment operation analysis module; the equipment operation analysis module includes: a statistical unit, which is used to count the timing rhythm of each mechanism of the equipment to analyze the bottleneck station, that is, to analyze which process step in the various process steps of the battery cell sorting and detection equipment takes up more time and causes poor production line efficiency, and to provide optimization suggestions for the equipment; a monitoring unit, which is used to monitor the working status of each electrical component and identify electrical component abnormalities in advance; a change unit, which is used to control the position of the first anti-drop baffle 11 next to the incoming material pull belt 1 and the second anti-drop baffle next to each sorting pull belt, so as to achieve the purpose of one-click change of production; for example, the first adjusting cylinder controls the first anti-drop baffle 11, and the second adjusting cylinder controls the second anti-drop baffle, and the change unit directly controls the first adjusting cylinder and the second adjusting cylinder.

[0076] Optionally, the docking module 2 includes a docking conveyor belt assembly 21 and a docking drive module 22, and the docking drive module 22 is used to drive the docking conveyor belt assembly 21 to translate along a set direction so that the docking conveyor belt assembly 21 docks with the NG battery cell pull belt 32 or the normal gear pull belt 31. Figure 1 , Figure 2 and Figure 4 As shown, the docking drive module 22 drives the docking conveyor belt assembly 21 to move along the set direction, so that one end of the docking conveyor belt assembly 21 can dock with the discharge end of the incoming material pull belt 1, and then the docking drive module 22 drives the docking conveyor belt assembly 21 to move to a suitable position, so that the other end of the docking conveyor belt assembly 21 can dock with different sorting pull belts.

[0077] Optionally, the connecting conveyor belt assembly 21 also includes a conveyor belt 211 and a stop assembly 212. The conveyor belt 211, the incoming material pull belt 1, and the sorting pull belt have the same transport direction, and the transport direction of the conveyor belt 211 is perpendicular to the set direction. The stop assembly 212 is arranged at the discharge end of the conveyor belt 211. The transport surface of the conveyor belt 211 is not higher than the transport surface of the incoming material pull belt 1. The stop assembly 212 includes a liftable lifting door, and a transition roller 213 is arranged on the top of the lifting door. In this embodiment, the position of the lifting door can be adjusted so that the lifting door stops the battery cell to be sorted or avoids the battery cell to be sorted. In addition, the provision of the transition roller 213 can make it easier for the battery cell to be sorted to flow from the conveyor belt 211 to the normal gear pull belt 31 or the NG battery cell pull belt 32, further reducing the risk of the battery cell falling.

[0078] Embodiment 2

[0079] This embodiment discloses a cell sorting and detection method, comprising the following steps:

[0080] S01. Collect the key production parameters of all processes of each batch of cells to be sorted to form a full process database. Collecting the key production parameters of all processes of each batch of cells to form a full process database is the basis of sorting and testing. Generally speaking, the more data in the full process database, the better.

[0081] S02, S02, identify the cells to be sorted on the incoming material pull belt 1, grade the cells to be sorted based on the identified key production constants of the whole process of the cells to be sorted, and sort the cells to be sorted from the incoming material pull belt 1 to the normal gear pull belt 31 or the NG cell pull belt 32 through the docking module 2. For example, the production code of the cell to be sorted is identified by the code scanning unit, and then the key production constants of the whole process of the cell are found in the whole process database based on the production code data reading and analysis module, and then the cell is graded based on the key production constants of the whole process of the cell, and finally the cell is sorted to the sorting pull belt of the corresponding level through the docking module 2.

[0082] S03. Check whether the sorting action of the sorting worker on the battery cells to be sorted on the sorting belt conforms to the preset sorting action. After detecting that the sorting action of the sorting worker does not conform to the preset sorting action, a warning is issued. The battery cells are output to the manual sorting station along the sorting belt, and the sorting worker transfers the battery cells output by the sorting belt to the transfer tray or box. In this embodiment, by detecting whether the sorting action of the sorting worker conforms to the preset sorting action, it is determined whether the position where the sorting worker finally places the battery cells is correct, thereby avoiding mixing battery cells of different grades into the same transfer tray or the same box.

[0083] Optionally, the battery cells on the incoming material pull belt 1 are identified, and then the following steps are further included:

[0084] S0201, detect whether the battery cell to be sorted is an abnormal battery cell; if not, execute step S0202; if so, execute step S0203;

[0085] S0202, the cells to be sorted are transported to the normal gear pull belt 31 of the corresponding gear;

[0086] S0203. Trace the production batch of abnormal cells from the full process database and obtain the full process key production parameters of the production batch of abnormal cells;

[0087] S0204. Obtain the key production parameters of all processes of the production batch of normal battery cells, compare the key production parameters of all processes of the production batch of normal battery cells with the key production parameters of all processes of the production batch of abnormal battery cells one by one, and find out the abnormal parameters among the key production parameters of all processes of the production batch of abnormal battery cells;

[0088] S0205. Check the processes corresponding to the abnormal parameters.

[0089] It should be noted here that the abnormal battery cells here can be detected by various different detection processes, such as detecting the battery cell voltage, detecting the internal resistance of the battery cell, detecting the voltage drop of the battery cell per unit time of the K value of the battery cell, detecting the thickness of the battery cell, etc. The defective battery cells found in these detection processes.

[0090] In this embodiment, by comparing one by one the "key production parameters of all processes of the production batch of abnormal battery cells" and the "key production parameters of all processes of the production batch of normal battery cells", the abnormal parameters in the "key production parameters of all processes of the production batch of abnormal battery cells" can be found, and based on the abnormal parameters, the corresponding process can be quickly found, so as to quickly check and correct the corresponding process.

[0091] It should also be noted that an abnormal parameter may correspond to one process or several processes, that is, the abnormal parameter may be caused by the combination of several processes. All the processes related to the abnormal data are listed as the corresponding processes. For example, if the detected battery cell thickness dimension is abnormal data, then the battery cell box manufacturing process and the assembly process are both listed as the corresponding processes.

[0092] Optionally, the key production parameters of all processes include:

[0093] The formula ratio in the feeding process; the stirring duration, the slurry viscosity, and the slurry fineness in the stirring process; the coating surface density and the electrode sheet thickness in the coating process; the baking temperature and the electrode sheet water content in the baking process; the injection volume and the infiltration duration in the injection process; the aging time in the aging process; the formation time in the formation process; the grading time in the grading process; the grading action in the sorting process. Preferably, all processes refer to all production processes from stirring to coating. The more key production parameters in each process, the more conducive it is to find the process and reason leading to battery cell defects. The production process also includes processes such as winding the battery cell process and installing the cover plate process.

[0094] Optionally, to detect whether the sorting action of the battery cells on the sorting conveyor belt by the sorting worker conforms to the preset sorting action, the determination steps are:

[0095] S031. Detect the position where the sorting worker picks up the workpiece, and record the position where the workpiece is picked up as the picking position;

[0096] S032. Detect the position where the sorting worker places the workpiece, and record the position where the workpiece is placed as the placing position;

[0097] S033. Determine whether the picking position and the placing position have a preset corresponding relationship. If so, the sorting action of the sorting worker is correct; if not, the sorting action is incorrect.

[0098] It should also be noted that after switching the specifications of the produced battery cells, the relationship between the material taking position and the material placing position changes accordingly according to the battery cells of different specifications, so as to meet the production requirements among different battery cells.

[0099] Optionally, to determine whether a battery cell is an abnormal battery cell, specifically:

[0100] S021. Detect the performance parameters of the battery cell to be sorted;

[0101] S022. Compare the performance parameters of the battery cell to be sorted with those of a normal battery cell to determine whether the battery cell to be sorted is qualified or unqualified;

[0102] S022. If the battery cell to be sorted is determined to be unqualified, it is regarded as detecting an abnormal battery cell, and the abnormal battery cell is conveyed to the NG battery cell pulling belt 32.

[0103] The performance parameters can be battery cell capacity, battery cell voltage, battery cell internal resistance, battery cell K value, battery cell thickness, battery cell current, etc.

[0104] Optionally, troubleshoot the processes corresponding to the abnormal parameters, including:

[0105] S02051. Send the abnormal parameters to the networked terminal of the process person in charge;

[0106] S02052. The process person in charge uses the troubleshooting module to troubleshoot the process equipment and process parameters.

[0107] Generally, the process person in charge is the person who is most familiar with the key points of the process. Therefore, directly handling by the process person in charge after a problem occurs in the process can effectively improve the efficiency of problem-solving. The troubleshooting module can be various equipment, detection instruments, etc. required for troubleshooting.

[0108] Embodiment III

[0109] This embodiment discloses a battery cell production line, which applies the battery cell sorting and detection method described in any one of Embodiment II. The battery cells can be various types of battery cells, such as wound core battery cells, stacked core battery cells, square battery cells, cylindrical battery cells, etc.

[0110] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0111] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0112] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cell sorting and detecting device, characterized in that, include: The data reading and analysis module is used to collect the key production parameters of the entire process of the battery cells to be sorted and form a database of the entire process; A code scanning and sorting module is provided with an incoming material pull belt (1), a code scanning unit, a connection module (2) and a plurality of sorting pull belts, wherein the plurality of sorting pull belts include at least one normal gear pull belt (31) and at least one NG battery cell pull belt (32), wherein the connection module (2) and the code scanning unit are respectively electrically connected to the data reading and analysis module; the code scanning unit is arranged above the incoming material pull belt (1) for identifying the battery cells to be sorted on the incoming material pull belt (1), and the connection module (2) is arranged between the discharge end of the incoming material pull belt (1) and the feed end of the plurality of sorting pull belts; the data reading and analysis module classifies the battery cells to be sorted based on the identified key production constants of the entire process of the battery cells to be sorted, and sorts the battery cells to be sorted from the incoming material pull belt (1) to the normal gear pull belt (31) or the NG battery cell pull belt (32) through the connection module (2); The human body dynamic analysis module is arranged at the discharge end of several of the sorting belts, and is used to detect whether the sorting actions of the sorting workers on the battery cells to be sorted on the sorting belts conform to the preset sorting actions, and to issue a warning after detecting that the sorting actions of the sorting workers do not conform to the preset sorting actions.

2. The cell sorting and detecting device according to claim 1, characterized in that, The human body dynamic analysis module comprises an industrial computer and a detection camera (41) for detecting the sorting action of the sorting worker, and the industrial computer is connected to the detection camera (41); The preset sorting action includes a material picking action and a material placing action, and a material picking position of the material picking action and a material placing position of the material placing action have a preset corresponding relationship.

3. The cell sorting and detecting device according to claim 1, characterized in that, First anti-drop baffles (11) are respectively arranged on opposite sides of the incoming material pull belt (1), and the first anti-drop baffles (11) are parallel to the transport direction of the incoming material pull belt (1), and the distance between the first anti-drop baffles (11) on both sides is adjustable; Second anti-drop baffles (301) are respectively arranged on two opposite sides of the sorting draw belt, the second anti-drop baffles (301) are parallel to the transport direction of the sorting draw belt, and the distance between the second anti-drop baffles (301) on both sides is adjustable.

4. The cell sorting and detecting device according to claim 1, characterized in that, It also includes a device operation analysis module; The equipment operation analysis module includes: The statistical unit is used to count the timing of each mechanism of the equipment to analyze the bottleneck position; A monitoring unit, used to monitor the working status of each electrical component; The changeover unit is used to control the positions of a first anti-drop baffle (11) beside the incoming material drawing belt (1) and a second anti-drop baffle (301) beside each sorting drawing belt.

5. The cell sorting and detecting device according to claim 1, characterized in that, The docking module (2) comprises a docking conveyor belt assembly (21) and a docking drive module (22), wherein the docking drive module (22) is used to drive the docking conveyor belt assembly (21) to translate along a set direction so that the docking conveyor belt assembly (21) docks with the NG battery cell pull belt (32) or the normal gear pull belt (31).

6. The cell sorting and detecting device according to claim 5, characterized in that, The connecting conveyor belt assembly (21) also includes a conveyor belt (211) and a stop assembly (212); the conveying direction of the conveyor belt (211) is the same as the conveying direction of the incoming material pull belt (1) and the conveying direction of the sorting pull belt, and is perpendicular to the set direction; the stop assembly (212) is arranged at the discharge end of the conveyor belt (211), the conveying surface of the conveyor belt (211) is not higher than the conveying surface of the incoming material pull belt (1), and the stop assembly (212) includes a liftable lifting door, and a transition roller (213) is arranged on the top of the lifting door.

7. A cell sorting and detecting method, characterized in that, The steps include: S01. Collect the key production parameters of the entire process of each batch of cells to be sorted, and form a database of the entire process; S02, identifying the battery cells to be sorted on the incoming material pull belt (1), classifying the battery cells to be sorted based on the identified key production constants of the entire process of the battery cells to be sorted, and sorting the battery cells to be sorted from the incoming material pull belt (1) to the normal gear pull belt (31) or the NG battery cell pull belt (32) through the docking module (2); S03, detecting whether the sorting action of the sorting worker on the battery cells to be sorted on the sorting pull belt conforms to the preset sorting action, and issuing a warning after detecting that the sorting action of the sorting worker does not conform to the preset sorting action.

8. The cell sorting and detecting method according to claim 7, characterized in that, Identify the cells to be sorted on the incoming material pull belt (1), and then include: S0201, detect whether the battery cell to be sorted is an abnormal battery cell; if not, execute step S0202; if so, execute step S0203; S0202, the battery cells to be sorted are transported to the normal gear pull belt (31) of the corresponding gear; S0203, tracing the production batch of the abnormal battery cell from the full-process database, and obtaining the full-process key production parameters of the production batch of the abnormal battery cell; S0204, obtaining the key production parameters of all processes of the production batch of normal battery cells, comparing the key production parameters of all processes of the production batch of normal battery cells with the key production parameters of all processes of the production batch of abnormal battery cells one by one, and finding out the abnormal parameters among the key production parameters of all processes of the production batch of abnormal battery cells; S0205. Check the processes corresponding to the abnormal parameters.

9. The cell sorting and detecting method according to claim 7, characterized in that, The key production parameters of the whole process include: The formula ratio in the feeding process; the stirring time, slurry viscosity and slurry fineness in the stirring process; the coating surface density and electrode thickness in the coating process; the baking temperature and electrode water content in the baking process; the injection volume and immersion time in the injection process; the aging time in the aging process; the formation time in the formation process; the volume separation time in the volume separation process; and the sorting action in the sorting process.

10. The cell sorting and detecting method according to claim 7, characterized in that, Detect whether the sorting action of the sorting worker on the to-be-sorted cells on the sorting pull belt conforms to the preset sorting action, and the determination steps are as follows: S031, detecting the position where the sorting worker picks up the workpiece, and recording the position where the workpiece is picked up as the material picking position; S032, detecting the position where the sorting worker places the workpiece, and recording the position where the workpiece is placed as the material placement position; S033. Determine whether there is a preset corresponding relationship between the material taking position and the material placing position. If so, the sorting operation of the sorter is correct; if not, the sorting operation is incorrect.

11. The cell sorting and detection method according to claim 8, wherein Determine whether the cell to be sorted is an abnormal cell. Specifically: S021. Detect the performance parameters of the cell to be sorted; S022. Compare the performance parameters of the cell to be sorted with those of a normal cell to determine whether the cell to be sorted is qualified or unqualified; S022. If the cell to be sorted is determined to be unqualified, it is regarded as an abnormal cell detected, and the abnormal cell is conveyed to the NG cell conveyor belt (32).

12. The cell sorting and detection method according to claim 8, wherein Investigate the processes corresponding to the abnormal parameters, including: S02051. Send the abnormal parameters to the networked terminal of the process supervisor; S02052. The process supervisor uses the investigation module to investigate the process equipment and process parameters.

13. A cell production line, wherein Apply the cell sorting and detection method according to any one of claims 7-12.

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