CN117408282A - Battery cell production time management and control method and device - Google Patents

Battery cell production time management and control method and device Download PDF

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CN117408282A
CN117408282A CN202311320348.4A CN202311320348A CN117408282A CN 117408282 A CN117408282 A CN 117408282A CN 202311320348 A CN202311320348 A CN 202311320348A CN 117408282 A CN117408282 A CN 117408282A
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battery cell
time
cell
preset range
entering
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雷冰
彭煜辉
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Xinwangda Power Technology Co ltd
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Xinwangda Power Technology Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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    • G06Q50/04—Manufacturing

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Abstract

The application provides a battery cell production time management and control method and device, which are applied to a battery cell production time management and control device, wherein the battery cell production time management and control device comprises scanning equipment and a processing module, and the method comprises the following steps: the scanning equipment scans the bar code of a battery cell to acquire the inbound time of the battery cell entering the current procedure; the processing module acquires the inbound time of the battery cell entering the current process from the scanning equipment, judges whether a first difference value between the inbound time of the battery cell entering the current process and the outbound time of the previous process of the battery cell is within a first preset range, and controls the battery cell to enter the next process if the first difference value is judged to be within the first preset range. The control method and the control device can realize control over the production time of the battery cell so as to ensure the consistency and quality requirements of the battery cell process.

Description

Battery cell production time management and control method and device
Technical Field
The application relates to the technical field of battery manufacturing, in particular to a method and a device for controlling production time of a battery cell.
Background
The cell manufacturing production line involves a plurality of working procedures, and the whole process cycle of the whole cell manufacturing production line is generally from tens of days to twenty days, so that the time of each working procedure needs to be strictly controlled to ensure the quality of the final product.
For example, the battery cell in the state of manufacturing, winding core, unsealing battery cell and the like needs to strictly control the circulation time of each process, and if the water absorption is excessive due to the overtime stay of the pole piece in the manufacturing process, the performance of the battery cell is affected. Therefore, in order to ensure the quality of the cell products, it is necessary to provide a method and a device for controlling the production time of the cells.
Disclosure of Invention
The application provides a battery cell production time management and control method and device, which are used for solving the problem of battery cell production time management and control.
In a first aspect, the present application provides a method for controlling a production time of a battery cell, which is applied to a device for controlling a production time of a battery cell, where the device for controlling a production time of a battery cell includes a scanning device and a processing module, and the method includes:
the scanning equipment scans the bar code of a battery cell to acquire the inbound time of the battery cell entering the current procedure;
the processing module acquires the inbound time of the battery cell entering the current process from the scanning equipment, judges whether a first difference value between the inbound time of the battery cell entering the current process and the outbound time of the previous process of the battery cell is within a first preset range, and controls the battery cell to enter the next process if the first difference value is judged to be within the first preset range.
In an embodiment of the present application, the processing module includes a host computer and an MES system, and the method further includes:
configuring the first preset range and the interception procedure through an MES system;
the MES system stores the outbound time of the battery cell in the current process and the first difference value uploaded by the upper computer;
and if the upper computer judges that the first difference value is not in the first preset range, intercepting the battery cell in a preset procedure according to the intercepting procedure.
In an embodiment of the present application, the device for controlling the production time of the battery cell further includes a controller, and after the scanning device obtains the inbound time of the battery cell entering the current procedure, the method further includes:
the controller stores the inbound time of the battery cell uploaded by the scanning equipment for entering the current procedure;
the upper computer acquires the inbound time of the battery cell entering the current working procedure from the controller, the outbound time of the last working procedure of the battery cell from the MES system and the first preset range.
In an embodiment of the present application, if the upper computer determines that the first difference is not within the first preset range, intercepting, according to the intercepting procedure, the electrical core entering in the preset procedure includes:
if the MES system sets the current process as the interception process, the MES system sends an interception instruction to the upper computer;
and the upper computer controls the clamping jaw device to intercept the battery cell according to the received interception instruction so as to prevent unqualified battery cells from flowing into the current process.
In an embodiment of the present application, if the electrical core includes at least one winding core, the at least one winding core includes a first winding core and a second winding core, the method further includes:
the processing module judges whether a second difference value between the time when the first winding core enters the current process and the time when the first winding core exits from the previous process is within a second preset range, and judges whether a third difference value between the time when the second winding core enters the current process and the time when the second winding core exits from the previous process is within a third preset range.
In an embodiment of the present application, the method further includes:
and if the second difference value is judged to be in the second preset range and the third difference value is judged to be in the third preset range, controlling the battery cell to enter the next working procedure.
In a second aspect, the present application further provides a cell production time management and control device, the device including:
the scanning equipment is used for scanning the bar code of the battery cell and acquiring the inbound time of the battery cell entering the current process;
the processing module is used for acquiring the inbound time of the battery cell entering the current process from the scanning equipment, judging whether a first difference value between the inbound time of the battery cell entering the current process and the outbound time of the previous process of the battery cell is within a first preset range, and controlling the battery cell to enter the next process if the first difference value is judged to be within the first preset range.
In an embodiment of the present application, the processing module includes an MES system and an upper computer;
the MES system is used for configuring the first preset range and the interception procedure, and storing the outbound time of the battery cell uploaded by the upper computer in the current procedure and the first difference value;
the upper computer is in communication connection with the MES system and is used for judging whether a first difference value between the inbound time of the battery cell entering the current process and the outbound time of the previous process of the battery cell is within a first preset range, and if the first difference value is judged not to be within the first preset range, the battery cell entering is intercepted in the preset process through the interception process.
In an embodiment of the present application, the apparatus further includes a controller, where the controller is respectively connected to the scanning device and the host computer in a communication manner, and is configured to store the bar code of the battery cell and the inbound time of the battery cell uploaded by the scanning device when the battery cell enters the current procedure.
In an embodiment of the present application, the scanning device includes at least one scanning gun, where the scanning gun is configured to scan a barcode of the battery cell to obtain an inbound time of the battery cell entering the current procedure, and the scanning gun provides any one of a USB interface, an RS-232 serial interface, an ethernet interface, and a wireless interface, or a combination thereof.
In an embodiment of the present application, the apparatus further includes a controller, where the controller is respectively connected to the scanning device and the host computer in a communication manner, and is configured to store the bar code of the battery cell and the inbound time of the battery cell uploaded by the scanning device when the battery cell enters the current procedure.
In an embodiment of the present application, the host computer provides any one or a combination of a serial port, a USB interface, and an ethernet interface.
In an embodiment of the present application, the controller is a programmable logic controller, and the programmable logic controller communicates with the scanning device through bluetooth or ethernet.
According to the method and the device for controlling the production time of the battery cell, after the bar code of the battery cell is scanned through the scanning equipment, the inbound time of the battery cell entering the current process is recorded, the bar code of the battery cell and the inbound time of the battery cell entering the current process are transmitted to the processing module through the controller to be processed, the processing module judges whether the first difference value between the inbound time of the battery cell entering the current process and the outbound time of the previous process is within a first preset range, and if the first difference value is within the first preset range, the battery cell is controlled to enter the next process, so that the control of the production time of the battery cell can be realized, and the consistency and the quality requirements of the process of the battery cell are guaranteed.
Drawings
For a clearer description of the present application or of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being apparent that the drawings in the description below are some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is one of the flow charts of the cell production time management and control method provided in the present application;
FIG. 2 is a second flowchart of a method for controlling the production time of a battery cell according to the present application;
FIG. 3 is a block diagram of a cell production time management and control device provided by the present application;
FIG. 4 is a second block diagram of the cell production time management and control device provided by the present application;
FIG. 5 is a third block diagram of the cell production time management and control device provided by the present application;
description of the drawings:
301: a scanning device; 302: a battery cell; 303: a controller;
304: a processing module; 305: an upper computer; 306: an MES system;
301-1: a first scanning gun; 301-2: a second scanning gun;
302-1: a first cell; 302-2: and a second cell.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application, and it is apparent that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein.
Technical terms related to the present application are described below:
the cell production process generally includes: firstly, preparing anode and cathode materials; secondly, mixing and coating anode and cathode materials; thirdly, cutting the cathode and anode plates; fourth, winding the battery cell; fifthly, injecting liquid into the battery cell; sixthly, forming the battery cell; seventh, assembling the battery cell; eighth, testing the battery cell; and ninth, packaging the battery cells. In these procedures, time is controlled to ensure the quality and performance of the cells. For example, cell winding needs to be completed within a specified time, otherwise the size and shape of the cell can be affected; the cell liquid injection needs to be completed within a specified time, otherwise, the concentration and uniformity of the electrolyte of the cell are affected; the cell molding also needs to be completed within a prescribed time, otherwise the internal structure and performance of the cell are affected.
In order to solve the problem of battery cell production time management and control, the application provides a battery cell production time management and control method and device.
The cell production time management method and apparatus are described below with reference to fig. 1 to 5.
Referring to the drawings, fig. 1 is one of flowcharts of a method for controlling production time of a battery cell provided in the present application, and the method is applied to a device for controlling production time of a battery cell, where the device includes a scanning device and a processing module, and the method includes:
step 101, the scanning device scans the bar code of a battery cell to obtain the inbound time of the battery cell entering the current procedure.
Specifically, the purpose of this step is to record and track the time information of the cell in the production process, so that the subsequent operations such as data analysis and production traceability are facilitated. By recording the inbound time of the battery cell, the time point of the battery cell entering the current working procedure can be accurately known, and the quality control and the production efficiency analysis of the product are facilitated.
Step 102, the processing module obtains the inbound time of the battery cell entering the current procedure from the scanning device, and judges whether a first difference value between the inbound time of the battery cell entering the current procedure and the outbound time of the previous procedure of the battery cell is within a first preset range, and if the first difference value is judged to be within the first preset range, the battery cell is controlled to enter the next procedure.
Specifically, the step is mainly used for controlling the procedure and managing the procedure of the battery cell. By comparing the difference between the time when the battery cell enters the current process and the time when the battery cell exits the previous process, the running speed and the production efficiency of the battery cell can be evaluated, and whether the battery cell meets the preset range can be judged. If the first difference value is within the preset range, the circulation speed of the battery cell is normal, and the circulation can be continued to the next procedure; if the first difference value exceeds the preset range, the exception handling, the adjustment of the production rhythm or the investigation of the cause of the problem are required. Through the flow control, the battery cell can be ensured to circulate according to the preset time requirement in the production process, and the controllability and the stability of production are enhanced.
In summary, the technical problem solved by the steps 101 and 102 is time tracking and process control in the process of producing the battery cell.
Step 101 obtains the inbound time of the battery cell entering the current procedure through the scanning equipment, so that the problem of how to accurately record and track the time information of the battery cell is solved. This is useful for performing operations such as product quality control, production efficiency analysis, and production traceability. By accurately recording the inbound time of the battery cell, the production process and the speed of the battery cell can be monitored and evaluated in real time, abnormal conditions can be found in time, and corresponding measures can be taken.
Step 102 solves the problem of controlling the process circulation of the battery cell by comparing the difference between the time when the battery cell enters the current process and the time when the battery cell exits the previous process and judging whether the battery cell is within a preset range. This is useful to ensure that the electric core is circulated according to the time requirement that sets for, improves controllability, stability and the efficiency of production. By judging whether the difference value is within a preset range, abnormal production speed or process deviation can be found in time, and corresponding control measures are taken to ensure the stability of product quality and production efficiency.
Therefore, the method and the device can accurately record the time information of the battery cell, monitor the production process in real time, improve the controllability, stability and efficiency of production, trace the production process and quickly respond to abnormal conditions, and are beneficial to improving the quality management and production efficiency of products.
The above steps 101 and 102 are specifically described below by way of examples.
Referring to fig. 2, fig. 2 is a second flowchart of the method for controlling the production time of the battery cell provided in the present application. The battery cell production time management and control method comprises the following steps:
in step 201, the scanning device scans the bar code of a battery cell to obtain the inbound time of the battery cell entering the current procedure, and stores the inbound time to the controller.
Specifically, the scanning device acquires the inbound time of the battery cell entering the current procedure by scanning the bar code of the battery cell, and stores the inbound time to the controller. For example, the scanning result can be transmitted to the controller by scanning the bar code on the battery cell through a laser or a camera, and the controller receives and stores the inbound time. The function of the step is to record the time of the battery core entering the current working procedure and provide an accurate time reference for the subsequent working procedure control and flow management.
Step 202, the upper computer calls a communication interface of the MES system to acquire the outbound time and the first preset range of the previous procedure from the MES system.
Specifically, the upper computer sends a request to the MES system by calling a communication interface of the MES system to acquire the outbound time of the previous procedure and a first preset range. For example, the upper computer may typically interact with the MES system using a network communication scheme, using an API (Application Programming Interface ) or other communication protocol. The function of this step is to obtain the time information and the preset range of the relevant process from the MES system for subsequent comparison and judgment.
And 203, the MES system transmits the previously stored outbound time of the previous procedure and the preset first preset range to the upper computer.
Specifically, after receiving the request of the upper computer, the MES system queries the outbound time and the preset range of the last procedure stored in the database, and transmits the outbound time and the preset range to the upper computer through the communication interface. In MES systems, a database or other data storage means can be used to store time information and preset parameters for the process. The function of this step is to transfer the time information and the preset range in the MES system to the upper computer for the subsequent comparison and decision by the upper computer.
In step 204, the upper computer determines whether a first difference between an inbound time of the cell entering the current process and an outbound time of a previous process of the cell is within a first preset range.
Specifically, the upper computer calculates the time difference between the received cell inbound time and the last procedure outbound time according to the received cell inbound time and the last procedure outbound time, and judges whether the time difference is within a first preset range or not. The determination may be implemented using a time calculation function or algorithm in a programming language that compares the time difference to a predetermined range of magnitudes. The function of this step is to make a judgment of the time difference, and by comparing the difference between the two time points, it is judged whether or not it is within a preset range, so as to determine whether or not the cell meets the condition of going to the next process.
Step 205, if the first difference is determined to be within the first preset range, the upper computer controls the battery cell to enter the next process, and sends the battery cell to the MES system at the outbound time of the current process.
Specifically, if the difference is determined to be within the first preset range, the upper computer sends out a control command to enable the battery cell to flow to the next process. And simultaneously, the outbound time of the current procedure is sent to the MES system, and the data can be transmitted to the MES system through a communication interface for updating the production line state information. The step is to control the battery cell to enter the next process according to the judging result if the battery cell accords with the circulation condition, and send the outbound time of the battery cell to the MES system so as to update the state information of the production line.
And 206, if the first difference value is not in the first preset range, the upper computer intercepts the battery core from entering in a preset procedure according to the preset interception procedure of the MES system.
Specifically, if the first difference value is not in the first preset range, the upper computer intercepts the battery cell according to interception procedure information pre-configured by the MES system. For example, the upper computer sends an instruction to the controller, and the battery cells are intercepted from the process by mechanical devices such as clamping jaws, so as to prevent unqualified battery cells from flowing into the current process. Meanwhile, the upper computer can also transmit the information to the MES system for recording and analyzing the interception condition in the production process. The function of the step is to intercept the battery cell according to the information of the interception procedure pre-configured in the MES system according to the judging result if the battery cell does not accord with the circulation condition, so that the battery cell does not continue to circulate to the next procedure, and bad products are prevented from entering the next procedure to influence the product quality.
Specifically, the MES (Manufacturing Execution System ) system is further used for realizing real-time and accurate monitoring and management of the cell production process through functions of data acquisition, monitoring, control, analysis and the like. The MES system can be connected with equipment and sensors on a production line to collect various data in the production process, such as temperature, humidity, pressure, current, voltage and other parameters in real time. The MES system can also monitor and control the production process in real time according to the preset production flow and quality standard.
For example, when an abnormal situation occurs in the production process, the MES system automatically gives an alarm and takes corresponding measures to ensure the stability and consistency of the production process. The MES system can also analyze and count the acquired data and present a terminal report so as to identify problems and bottlenecks existing in the production process, and can provide improved suggestions and optimization schemes. This helps to improve production efficiency and quality, and reduce production cost. The MES system can also track and manage various links in the production process of the battery cell, including raw material purchase, production plan, production process, quality detection, inventory management and the like. This helps to ensure product quality and production efficiency, and to improve traceability and transparency of the production process.
In summary, the method for controlling the production time of the battery cell according to the present application relies on data interaction and control logic among the scanning device, the controller, the upper computer and the MES system. Through reasonable equipment connection mode, communication protocol and programming realization, can realize that electric core business turn over station time is recorded, data transmission and processing, and control and interception operation of process circulation.
Referring to the drawings, fig. 3 is a block diagram of a cell production time management and control device provided in the present application. A cell production time management apparatus 300 includes a scanning device 301 and a processing module 304.
Illustratively, the scanning device 301 is used to scan the bar code of a cell and obtain the inbound time for the cell to enter the current process.
The processing module 304 is configured to obtain an inbound time of the cell entering the current process from the scanning device 301, determine whether a first difference between the inbound time of the cell entering the current process and an outbound time of a previous process of the cell is within a first preset range, and if the first difference is determined to be within the first preset range, control the cell to enter the next process.
In some embodiments of the present application, please refer to fig. 4, fig. 4 is a second diagram of a cell production time management apparatus provided in the present application. The cell production time management and control device further comprises a controller 303. The processing module 304 includes a host computer 305 and an MES system 306.
Illustratively, the controller 303 is configured to store the bar code of the battery cell 302 and the inbound time for the battery cell 302 to enter the current process, which is uploaded by the scanning device 301.
In particular, the controller 303 may be a programmable logic controller (Programmable Logic Controller, PLC) for processing and executing communications, data processing and control logic between the scanning apparatus 301, the upper computer 305 and the MES system 306. For example, the controller 303 acquires the inbound time for the cell 302 to enter the current process through the connection with the scanning device 301, and saves the time to the controller 303. Meanwhile, it also establishes communication with the upper computer 305 and the MES system 306, and transmits corresponding data to the upper computer 305 and the MES system 306, including information such as inbound time, outbound time, process circulation state, etc. of the battery cell.
Illustratively, the upper computer 305 is respectively in communication connection with the controller 303 and the MES system 306, and the upper computer 305 is further configured to intercept, by an intercepting procedure, the entry of the battery cell 302 in the preset procedure if it is determined that the first difference is not within the first preset range.
Specifically, the upper computer 305 is configured to receive data sent by the controller 303 and the MES system 306, and perform data processing and comparison according to preset logic judgment conditions. For example, the upper computer 305 may obtain the outbound time and the first preset range of the previous process, and compare with the inbound time of the battery cell 302 to determine whether the battery cell 302 meets the condition for going to the next process. The upper computer 305 issues corresponding control instructions according to the logic judgment result to control the circulation or interception of the battery cell 302. If the battery cell 302 meets the circulation condition, the upper computer 305 controls the battery cell 302 to enter the next process; if the battery cell 302 does not meet the condition, the upper computer 305 intercepts the battery cell 302 in a preset process according to the information of the intercept process pre-configured in the MES system 306.
Specifically, the upper computer 305 obtains the inbound time of the cell 302 entering the current process from the controller 303, obtains the outbound time of the previous process of the cell 302 from the MES system 306, calculates a first difference between the inbound time of the cell 302 entering the current process and the outbound time of the previous process, determines whether the first difference is within a first preset range, if so, controls the cell 302 to enter the next process, and sends the first difference to the MES system 306 for storage.
Specifically, the upper computer 305 acts as a platform for communication and data interaction with the controller 303 and the MES system 306. The upper computer 305 is responsible for data exchange with the controller 303. It establishes a connection with the controller 303 and communicates with the controller 303 using a protocol or interface to obtain data, status and prompt information inside the controller 303 in real time. At the same time, the upper computer 305 sends the required data and instructions to the MES system 306 for corresponding operation control.
In addition, the host computer 305 may provide a graphical interface that may display and monitor various data and status information during the manufacturing process. It may present real-time data provided by the controller 303, such as the inbound time of the cell 302, process flow conditions, etc., for real-time observation and analysis by the user.
Illustratively, the MES system 306 is configured to configure a first preset range and intercept the process, and save the outbound time and the first difference of the current process for the battery cell 302 uploaded by the host computer 305.
Specifically, MES system 306 provides a platform for centrally managing and configuring parameters, logic rules, and preset ranges. By interfacing directly with the MES system 306, a user can configure and adjust system parameters, such as process flow conditions, preset ranges of time differences, production plans, product specifications, etc., through the MES system 306. The user can flexibly modify and manage the settings as required. The user may also add parameter backtracking verification functions and upper and lower specification of parameters through the MES system 306.
In addition, MES system 306 has powerful data analysis and report generation functions. It is capable of collecting and integrating production data from controllers and other data sources, and making statistics, analysis, and mining. Using various algorithms and techniques, MES system 306 can identify potential problems and trends, providing decision support and predictive capabilities. In addition, the MES system 306 can also generate various reports and charts, visually display production efficiency, quality indexes and the like, and help the management layer to make data-driven decisions.
In summary, the upper computer 305 and the MES system 306 are two systems that are interrelated to enable monitoring and management of the cell manufacturing process. The host computer 305 is a computer system for monitoring, controlling and managing equipment and production processes. The host computer 305 may be connected to various devices and sensors on the production line and provide real-time information and control functions to the operator through a human-machine interface. The upper computer 305 may also receive instructions and data from the MES system 306 and convert it into control signals for transmission to the equipment.
In particular, the host computer 305 may include computer hardware, which may include a host computer, a display, a keyboard, and a mouse, and software, which may include an operating system, application programs, and drivers.
Specifically, the computer hardware of the upper computer 305 may further provide any one or a combination of a serial port, a USB interface, and an ethernet interface. The upper computer 305 obtains the bar code of the battery cell 302, the inbound time of the battery cell 302 entering the current process and the outbound time of the previous process of the battery cell 302 from the controller 303, processes the data, and generates a corresponding control instruction according to the processing result so as to control the production time of the battery cell.
Illustratively, the MES system 306 may include an MES database for storing a first predetermined range of values, the time to departure of a previous process on the cell 302 uploaded by the upper computer 305, and the first difference.
It should be noted that, the value in the preset range may be set manually through a web page of the MES system, and the value in the preset range is not limited in the present application, and may be specifically set according to an actual application scenario.
Specifically, the upper computer 305 and the MES system 306 may be connected through a network to implement data and instruction transmission. When the MES system 306 needs to control the equipment or send an instruction, it sends the instruction to the upper computer 305 and requests the upper computer 305 to perform the corresponding operation. The upper computer 305 receives the instructions and data sent by the MES system 306, converts the instructions and data into control signals, and sends the control signals to the equipment to control and monitor the production process. At the same time, the upper computer 305 also sends the collected data to the MES system 306, so that the MES system 306 performs data processing and analysis, and provides real-time monitoring and management functions.
It should be noted that, if the battery core 302 completes the current process and prepares to enter the next process, the upper computer 305 may acquire the outbound time and the first difference value of the battery core 302, upload the outbound time and the first difference value to the MES system 306, record the data of the outbound time and the first difference value by the MES database of the MES system 306, and facilitate the upper computer 305 to acquire the outbound time of the previous process when the next process is to be processed, and facilitate the MES system 306 to analyze and count the first difference value.
In some embodiments of the present application, the upper computer 305 is further configured to determine that the first difference between the inbound time of the cell 302 entering the current process and the outbound time of the previous process of the cell is not within a preset range, and intercept the cell 302 entering in the preset process through an interception process set in the MES system 306 to prevent the unqualified cell from flowing into the preset process.
In some embodiments of the present application, the upper computer 305 is further configured to determine whether the outbound time of a previous procedure for obtaining the battery cell 302 from the MES system 306 is timeout, and if so, control the battery cell 302 to be ejected from the preset channel.
In some embodiments of the present application, the scanning device 301 may be connected to the controller 303 by bluetooth or ethernet communication to enable wireless transmission of data. The scanning device 301 may include at least one scanning gun for scanning the bar code of the cell 302 to obtain the inbound time of the cell 302 into the current process. The scanning gun can provide any one or combination of a USB interface, an RS-232 serial interface, an Ethernet interface, a wireless interface and the like.
Specifically, the scanning gun comprises a light source, a photoelectric sensor, a lens and a decoder, when the scanning gun is aligned with the bar code of the battery cell, the light source emits a beam of light to illuminate the bar code, and black and white stripes in the bar code reflect light rays of different degrees. The photosensor receives these reflected light signals and converts them into electrical signals. The lens focuses light onto the photosensor to improve the sensitivity and accuracy of the received signal. The decoder converts the electric signal received by the photoelectric sensor into a digital signal and analyzes the information in the bar code. And finally, the scanning gun transmits bar code information and the inbound time of the battery cell entering the current procedure to the controller for storage. The scanning gun can rapidly and accurately read the bar code information of the battery cell, and the production efficiency and the quality control accuracy are improved.
In some embodiments of the present application, the battery cell 302 includes at least one winding core, and the scanning device 301 obtains the inbound time of the at least one winding core into the current process by scanning the bar code of the battery cell 302.
Specifically, for example, the battery cells 302 may include a first winding core and a second winding core. The processing module 304 is further configured to determine whether a second difference between an inbound time of the first winding core entering the current process and an outbound time of the first winding core in a previous process is within a second preset range, and determine whether a third difference between an inbound time of the second winding core entering the current process and an outbound time of the first winding core in a previous process is within a third preset range. If the second difference is within the second preset range and the third difference is within the third preset range, the control cell 302 proceeds to the next process.
It is understood that the battery cells 302 may also include a first core, a second core, a third core, and a fourth core. The number of winding cores is not limited in this application.
The cell production time management and control device described in the present application is described below by way of specific embodiments.
Referring to fig. 5, fig. 5 is a third diagram of a cell production time management and control device provided in the present application. In the production process of the battery cell, the shell-entering procedure and the hot-pressing procedure belong to the battery cell assembly in the production procedure of the battery cell. In the battery assembly process, the battery core is required to be placed into the battery shell through a shell entering process, and a hot pressing process is carried out, so that the battery core and the battery shell are tightly attached, and the performance and the safety of the battery are ensured.
Two important links in battery manufacturing in a shell-in process and a hot-pressing process. By implementing control of WIP (Work in Process) time in the two processes, production efficiency and accuracy of quality control can be improved, and overall competitiveness of battery manufacturing is improved. Fig. 2 shows that the cells include first through nth cells, the scanning device includes first through nth scanning guns, and N is a positive integer. The battery may include at least one cell, which may include at least one jellyroll.
In the case-in process, the first scanning gun 101-1 scans the bar code of the first cell 302-1 to obtain the inbound time T1 of the first cell 302-1 entering the current process. In the hot pressing process, the second scanning gun 101-2 scans the bar code of the second cell 302-2 to obtain the inbound time T2 of the second cell 302-2 entering the current process.
The programmable logic controller 103 saves the barcode of the first cell 302-1 and the inbound time T1 for the first cell 302-1 to enter the current process. And the programmable logic controller 103 also saves the bar code of the second cell 302-2 and the inbound time T2 for the second cell 302-2 to enter the current process.
The upper computer 305 performs an inbound check according to the bar code of the first cell 302-1 and the bar code of the second cell 302-2, and invokes the interface connected to the MES system 306, so that the MES system 306 returns to the upper computer 305 the outbound time T3 of the previous process of the first cell 302-1 and the outbound time T4 of the previous process of the second cell 302-2, and the preset range of values. The values of the preset ranges include values of the second preset range and values of the third preset range.
The upper computer 305 calculates a second difference between the inbound time T1 of the first cell 302-1 entering the current process and the outbound time T3 of the previous process, i.e., the second difference=t1-T3, and uploads the first difference to the MES system 306 for storage. If the second difference is within the second preset range, it indicates that the first battery cell 302-1 does not have the timeout in the process of entering the shell, and the upper computer 305 controls the first battery cell 302-1 to enter the next process. If the second difference is not within the second preset range, which indicates that the first battery cell 302-1 is overtime in the case-in process, the upper computer 305 controls the first battery cell 302-1 to be discharged from the first preset channel, so as to perform quality inspection on the first battery cell 302-1.
The upper computer 305 calculates a third difference between the inbound time T2 of the second cell 302-2 entering the current process and the outbound time T4 of the previous process, i.e. a third difference=t2-T4, and uploads the third difference to the MES system 306 for storage. If the third difference is within the third preset range, it indicates that the second battery cell 302-2 has not timed out in the hot pressing process, and the upper computer 305 controls the second battery cell 302-2 to enter the next process. If the third difference is not within the third preset range, which indicates that the second cell 302-2 is overtime in the hot pressing process, the upper computer 305 controls the second cell 302-2 to be discharged from the second preset channel, so as to perform quality inspection on the second cell 302-2.
In some embodiments, the upper computer 305 may also intercept the first cell 302-1 or the second cell 302-2 at a predetermined procedure according to the intercept procedure set by the MES system. For example, if the MES system 306 sets the next process as the interception process, the MES system 306 sends an interception command to the upper computer 305, and the upper computer 305 controls the clamping jaw device to intercept the first cell 302-1 or the second cell 302-2 according to receiving the interception command so as to prevent the unqualified cell from flowing into the next process.
That is, which procedure is to intercept cells that are not within the predetermined range may be set on the MES system 306.
It should be noted that, if the first battery core 302-1 includes two winding cores, i.e., a first winding core and a second winding core, the barcode of the first battery core 302-1 may be scanned by the first scanning gun 101-1, and the inbound time of the first winding core entering the current procedure and the outbound time of the first winding core in the previous procedure may be obtained according to the barcode, so as to calculate the difference between the inbound time of the first winding core entering the current procedure and the outbound time of the first winding core in the previous procedure. And obtaining the inbound time of the second winding core entering the current process and the outbound time of the first winding core in the last process according to the bar code, so as to calculate the difference value between the inbound time of the second winding core entering the current process and the outbound time of the first winding core in the last process. When the difference between the first winding core and the second winding core is within the preset range, the first battery core 302-1 is controlled to enter the next process.
In addition, it should be noted that, since the value of the outbound time and the preset range of the previous process of the battery cell is stored in the MES system 306, if the upper computer 305 cannot acquire the value of the outbound time and/or the preset range of the previous process of the battery cell from the MES system 306 or the acquisition time is overtime, the upper computer 305 controls the battery cell to be ejected from the preset channel so as to perform another processing flow on the battery cell.
Therefore, the WIP time management and control of the battery cell production process, such as the shell-in process and the hot-pressing process, is realized by adopting the technical means of the scanning equipment, the controller, the upper computer and the MES system. By recording and accounting the time difference value of each procedure, the progress and quality condition of the production of the battery cell can be mastered more accurately, and therefore the production efficiency and the product quality are improved.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (12)

1. The utility model provides a battery cell production time management and control method which is characterized in that is applied to battery cell production time management and control device, battery cell production time management and control device includes scanning equipment and processing module, the method includes:
the scanning equipment scans the bar code of a battery cell to acquire the inbound time of the battery cell entering the current procedure;
the processing module acquires the inbound time of the battery cell entering the current process from the scanning equipment, judges whether a first difference value between the inbound time of the battery cell entering the current process and the outbound time of the previous process of the battery cell is within a first preset range, and controls the battery cell to enter the next process if the first difference value is judged to be within the first preset range.
2. The method of claim 1, wherein the processing module comprises a host computer and an MES system, the method further comprising:
configuring the first preset range and the interception procedure through an MES system;
the MES system stores the outbound time of the battery cell in the current process and the first difference value uploaded by the upper computer;
and if the upper computer judges that the first difference value is not in the first preset range, intercepting the battery cell in a preset procedure according to the intercepting procedure.
3. The method of claim 2, wherein the cell production time management device further comprises a controller, and the scanning device obtains the inbound time of the cell entering the current process, and the method further comprises:
the controller stores the inbound time of the battery cell uploaded by the scanning equipment for entering the current procedure;
the upper computer acquires the inbound time of the battery cell entering the current working procedure from the controller, the outbound time of the last working procedure of the battery cell from the MES system and the first preset range.
4. The method for controlling the production time of the battery cell according to claim 2, wherein if the upper computer determines that the first difference is not within the first preset range, intercepting the battery cell entering in a preset procedure according to the intercepting procedure comprises:
if the MES system sets the current process as the interception process, the MES system sends an interception instruction to the upper computer;
and the upper computer controls the clamping jaw device to intercept the battery cell according to the received interception instruction so as to prevent unqualified battery cells from flowing into the current process.
5. The method of claim 1, wherein if the cell comprises at least one core, the at least one core comprises a first core and a second core, the method further comprising:
the processing module judges whether a second difference value between the time when the first winding core enters the current process and the time when the first winding core exits from the previous process is within a second preset range, and judges whether a third difference value between the time when the second winding core enters the current process and the time when the second winding core exits from the previous process is within a third preset range.
6. The cell production time management method according to claim 5, further comprising:
and if the second difference value is judged to be in the second preset range and the third difference value is judged to be in the third preset range, controlling the battery cell to enter the next working procedure.
7. A cell production time management and control device, the device comprising:
the scanning equipment is used for scanning the bar code of the battery cell and acquiring the inbound time of the battery cell entering the current process;
the processing module is used for acquiring the inbound time of the battery cell entering the current process from the scanning equipment, judging whether a first difference value between the inbound time of the battery cell entering the current process and the outbound time of the previous process of the battery cell is within a first preset range, and controlling the battery cell to enter the next process if the first difference value is judged to be within the first preset range.
8. The cell production time management and control device according to claim 7, wherein the processing module comprises an MES system and an upper computer;
the MES system is used for configuring the first preset range and the interception procedure, and storing the outbound time of the battery cell uploaded by the upper computer in the current procedure and the first difference value;
the upper computer is in communication connection with the MES system and is used for judging whether a first difference value between the inbound time of the battery cell entering the current process and the outbound time of the previous process of the battery cell is within a first preset range, and if the first difference value is judged not to be within the first preset range, the battery cell entering is intercepted in the preset process through the interception process.
9. The cell production time management apparatus of claim 7, wherein the scanning device comprises at least one scanning gun for scanning a barcode of a cell to obtain inbound time of the cell into the current process, the scanning gun providing any one or a combination of a USB interface, an RS-232 serial interface, an ethernet interface, and a wireless interface.
10. The cell production time management and control device according to claim 8, further comprising a controller, wherein the controller is respectively in communication connection with the scanning equipment and the upper computer, and is used for storing the bar code of the cell and the inbound time of the cell uploaded by the scanning equipment into a current process.
11. The device for controlling the production time of a battery cell according to claim 8, wherein the host computer provides any one of or a combination of a serial port, a USB port, and an ethernet port.
12. The cell production time management apparatus of claim 10, wherein the controller is a programmable logic controller that communicates with the scanning device via bluetooth or ethernet.
CN202311320348.4A 2023-05-29 2023-10-11 Battery cell production time management and control method and device Pending CN117408282A (en)

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CN202321336828 2023-05-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117808025A (en) * 2024-02-29 2024-04-02 宁德时代新能源科技股份有限公司 Method for checking battery cell outbound and battery cell outbound system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117808025A (en) * 2024-02-29 2024-04-02 宁德时代新能源科技股份有限公司 Method for checking battery cell outbound and battery cell outbound system

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