Battery manufacturing process management system and operating method thereof

By using the battery cell imitation of sensors during battery manufacturing, the process variables are monitored and optimized in real time, the problem of experience in process variable setting in the prior art is solved, and the stability and quality of battery cell performance are improved.

CN119604822APending Publication Date: 2025-03-11LG ENERGY SOLUTION LTD
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Patent Information

Application Number
CN202380058741.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-08-17
Filing Date
2023-06-29
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

During the existing battery manufacturing process, the setting of process variables is highly dependent on the experience of the technician, making it difficult to predict the impact on the performance or completion level of the battery cell product when replacing the manufacturing equipment or changing the equipment settings.

Method used

Using a battery cell imitation including a sensor, a battery manufacturing process management system is established by measuring applied pressure, internal or external temperature, internal gas quantity and deformation level, based on these data, and providing feedback to users through a database.

Benefits of technology

By monitoring and optimizing process variables in real time, risks posed by device replacement or process line installation can be minimized, and degradation of battery cell performance and defects caused by process variables can be prevented and improved.

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Abstract

According to one embodiment, the system for managing the battery manufacturing process comprises a battery monomer simulation body and a battery cell simulation body, wherein the battery monomer simulation body is used for obtaining related data of the battery manufacturing process; and a controller for controlling at least one process variable related to the battery manufacturing process based on battery manufacturing process related data obtained using the battery cell phantom.
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Description

Technical Field

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2022-0102999 filed in the Korean Intellectual Property Office on August 17, 2022, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The invention relates to a battery manufacturing process management system and an operation method thereof. Background Art

[0004] Recently, research and development of secondary batteries have been actively conducted. Secondary batteries as rechargeable / dischargeable batteries may include all conventional nickel (Ni) / cadmium (Cd) batteries, Ni / metal hydride (MH) batteries, etc., and more recently, lithium-ion batteries. Among them, the energy density of lithium-ion batteries is much higher than that of conventional Ni / Cd batteries, Ni / MH batteries, etc., and lithium-ion batteries can be made small and lightweight, so that lithium-ion batteries have been used as power sources for mobile devices, and recently, the use range of lithium-ion batteries has been expanded to power sources for electric vehicles, attracting attention as the next generation of energy storage media.

[0005] The battery cell, which is the basic unit constituting the battery pack and / or battery module, includes an anode, a cathode and a separator. Each battery cell is manufactured through an electrode assembly process, a degassing process, an activation process, a charge / discharge process, an aging process, etc., and the performance or finish level of the battery cell may vary depending on process variables (such as the pressure applied to the battery cell by a pressurizing device, the temperature inside the chamber, the charge / discharge conditions of the battery cell, the time period of leaving, etc.). Conventionally, the setting of process variables is highly dependent on the experience of technicians, and it is difficult to know in advance the impact on the performance or finish level of the battery cell product when replacing manufacturing equipment or changing equipment settings or conditions. Summary of the invention

[0006] [Technical issues]

[0007] The embodiments disclosed herein are intended to provide a battery manufacturing process management system that can appropriately control process variables by obtaining battery manufacturing process-related data using a battery cell phantom including a sensor.

[0008] The embodiments disclosed herein aim to improve performance degradation and defects of battery cells and reduce risks arising from failures by providing feedback to users based on a database established for the manufacturing process of the battery.

[0009] Technical problems of the embodiments disclosed herein are not limited to the above-mentioned technical problems, and other unmentioned technical problems will be clearly understood by those of ordinary skill in the art from the following description.

[0010] [Technical solution]

[0011] A battery manufacturing process management system according to an embodiment includes a battery cell phantom and a controller, wherein the battery cell phantom is configured to obtain battery manufacturing process related data, and the controller is configured to control at least one process variable related to the battery manufacturing process based on the battery manufacturing process related data obtained using the battery cell phantom.

[0012] In the battery manufacturing process management system according to the embodiment, the battery manufacturing process related data may include at least one of pressure applied to the battery cell phantom, internal or external temperature of the battery cell phantom, internal gas amount of the battery cell phantom, and deformation level of the battery cell phantom.

[0013] In a battery manufacturing process management system according to an embodiment, the battery cell replica may include at least one of the following items: a pressure sensor, which is configured to measure the pressure applied to the battery cell replica; a temperature sensor, which is configured to sense the internal or external temperature of the battery cell replica; a gas amount sensor, which is configured to measure the internal gas amount of the battery cell replica; and a strain gauge, which is configured to sense the deformation of the battery cell replica.

[0014] In the battery manufacturing process management system according to the embodiment, the pressure sensor and the temperature sensor may be pad type sensors included in the battery cell phantom, and the strain gauge may be a film type sensor attached to the surface of the battery cell phantom.

[0015] In the battery manufacturing process management system according to the embodiment, the controller may be further configured to optimize the at least one process variable based on data obtained using the battery cell phantom.

[0016] In the battery manufacturing process management system according to the embodiment, the at least one process variable may include at least one of: setting of a pressurizing device; chamber internal temperature; battery storage period; and battery charge / discharge condition.

[0017] In the battery manufacturing process management system according to the embodiment, the controller may be further configured to transmit an alarm message to a user based on a difference between data obtained using the battery cell phantom and previously stored reference data.

[0018] A battery manufacturing process management method according to an embodiment may include: obtaining battery manufacturing process related data using a battery cell phantom; and controlling at least one process variable related to the battery manufacturing process based on the battery manufacturing process related data obtained using the battery cell phantom.

[0019] In the battery manufacturing process management method according to an embodiment, the battery manufacturing process related data may include at least one of pressure applied to the battery cell phantom, internal or external temperature of the battery cell phantom, internal gas volume of the battery cell phantom, and deformation level of the battery cell phantom.

[0020] In a battery manufacturing process management method according to an embodiment, obtaining battery manufacturing process related data using a battery cell phantom may include: measuring pressure applied to the battery cell phantom, sensing the internal or external temperature of the battery cell phantom, measuring the internal gas volume of the battery cell phantom, and sensing deformation of the battery cell phantom.

[0021] In a battery manufacturing process management method according to an embodiment, at least one of measurement of pressure, sensing of temperature, and measurement of internal gas amount can be performed using a pad-type sensor included in a battery cell phantom, and sensing of deformation of the battery cell phantom can be performed using a thin-film-type sensor attached to a surface of the battery cell phantom.

[0022] In the battery manufacturing process management method according to an embodiment, controlling the at least one process variable may include optimizing the at least one process variable based on data obtained using a battery cell phantom.

[0023] In the battery manufacturing process management method according to the embodiment, the at least one process variable may include at least one of: setting of a pressurizing device; chamber internal temperature; battery storage period; and battery charge / discharge condition.

[0024] The battery manufacturing process management method according to an embodiment may further include transmitting an alarm message to a user based on a difference between data obtained using the battery cell phantom and previously stored reference data.

[0025] [Beneficial Effects]

[0026] According to an embodiment, by previously placing a battery cell replica including sensors in a battery manufacturing process, process-related data (eg, pressure, temperature, gas volume, deformation level, etc. applied to the battery cell) may be obtained, and a process database may be established based on these data.

[0027] According to an embodiment, by calculating optimal process variables (e.g., pressurizing equipment settings, chamber temperature, charge / discharge conditions, etc.) and controlling process variables in a battery manufacturing process, risks associated with equipment replacement or with new process line installation can be minimized.

[0028] According to an embodiment, by providing feedback to a user based on an established database, performance degradation and defects of a battery cell due to process variables may be prevented and improved.

[0029] Furthermore, various effects directly or indirectly recognized from the present disclosure can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly describe the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for the description of the embodiments. It should be understood that the following drawings are provided for the purpose of explaining the embodiments of the present specification and are not intended to be limiting. In addition, for the sake of clarity of explanation, the representation of some components in the drawings may be exaggerated or omitted.

[0031] Figure 1 The configuration of a battery manufacturing process management system according to an embodiment is shown.

[0032] Figure 2a is a side view of a battery cell replica according to an embodiment.

[0033] Figure 2b is a plan view of a battery cell replica according to an embodiment.

[0034] Figure 3 The flowchart of the battery manufacturing process management method according to the embodiment is shown.

[0035] Figure 4 The operation of obtaining data in the battery manufacturing process management method according to the embodiment is shown in detail.

[0036] Figure 5 The flowchart of the battery manufacturing process management method according to the embodiment is shown.

[0037] Figure 6 A computing system for executing a battery manufacturing process management method according to an embodiment is shown. DETAILED DESCRIPTION

[0038] Hereinafter, the embodiments disclosed in this document will be described in detail with reference to the exemplary drawings. When adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals even if they are indicated in different drawings. In addition, when describing the embodiments disclosed herein, when it is determined that the detailed description of the related known configuration or function will interfere with the understanding of the embodiments disclosed herein, the detailed description thereof will be omitted.

[0039] Although the terms used herein are selected in consideration of the functions in the present disclosure, the terms may vary according to the intentions of those skilled in the art, customization, or introduction of new technologies. In addition, in certain cases, the applicant may voluntarily select words, in which case the meaning of the words may be disclosed in the corresponding description section of this specification. Therefore, the terms used herein should not be defined by the simple names of the terms, but by the substantial meanings of the terms and content throughout the present disclosure.

[0040] The terms defined in this disclosure are only used to describe specific exemplary embodiments and may not be intended to limit the scope of other exemplary embodiments. It should be understood that unless the context clearly stipulates otherwise, singular forms include plural references. In this article, expressions such as "first" and "second" are used to distinguish components from each other and do not mean the ranking or order between components.

[0041] All components constituting the embodiments have been described as being combined or operating in combination, but are not necessarily limited to the embodiments, and within the scope of the purpose, all components may be selectively combined with one or more components to operate. In addition, terms such as "including", "consisting of", "having", etc. described herein may mean that the corresponding components may be inherent, unless otherwise specified, and should therefore be interpreted as further including other components rather than excluding other components.

[0042] In addition, the components shown in the block diagram are classified according to their functions and roles, and each block is not necessarily implemented as independent hardware or software. For example, a separate component may actually be implemented as one device or program, or one component may be implemented as a combination of several devices and programs.

[0043] Hereinafter, preferred embodiments of a battery manufacturing process management system and an operating method thereof will be described with reference to the accompanying drawings.

[0044] Figure 1 The configuration of a battery manufacturing process management system according to an embodiment is shown.

[0045] refer to Figure 1According to the embodiment, the battery manufacturing process management system may include battery cell replicas 10, 11, 12, ... and a controller 20, wherein the battery cell replicas 10, 11, 12, ... are used to obtain data related to the battery manufacturing process, and the controller 20 is used to control at least one process variable related to the battery manufacturing process based on the data obtained using the battery cell replicas.

[0046] The battery cell replicas 10 , 11 , 12 . . . may be replicas manufactured with the same specifications (size, specifications, etc.) as actual battery cell products, and may be put into the battery cell manufacturing process 30 to obtain relevant data of the manufacturing process.

[0047] The battery cell mentioned here may be a basic unit that forms a battery pack or a battery module. Each battery cell is manufactured through an electrode assembly process, a degassing process, an activation process, a charge / discharge process, an aging process, etc., and the performance or finish level of the product may vary depending on process variables (e.g., the pressure applied to the battery cell, the temperature inside the chamber, the charge / discharge conditions, etc.). Traditionally, the setting of process variables is very dependent on the experience of technicians, so when replacing manufacturing equipment or changing equipment settings or conditions, it is difficult to know in advance the impact on the performance or finish level of the battery cell product.

[0048] The battery cell replicas 10, 11, 12... can be put into the battery cell manufacturing process 30, and while undergoing the same process as the actual battery cell, data related to the battery manufacturing process can be obtained, such as the pressure applied to the battery cell replica, the internal or external temperature of the battery cell replica, the internal gas volume of the battery cell replica, the deformation level of the battery cell replica, etc., and the obtained data can be transmitted to the controller 20.

[0049] According to the embodiment, each of the battery cell phantoms 10, 11, 12, ... may include at least one sensor for obtaining process-related data. For example, a pressure sensor for measuring the pressure applied to the battery cell phantom, a temperature sensor for sensing the internal or external temperature of the battery cell phantom, a gas volume sensor for measuring the gas volume inside the battery cell phantom, a strain gauge for sensing the deformation of the battery cell phantom, etc. may be included in the battery cell phantom, or a pressure sensor for measuring the pressure applied to the battery cell phantom, a temperature sensor for sensing the internal or external temperature of the battery cell phantom, a gas volume sensor for measuring the gas volume inside the battery cell phantom, a strain gauge for sensing the deformation of the battery cell phantom, etc. may be installed on the surface of the battery cell phantom. For example, the pressure sensor and the temperature sensor are pad-type sensors included in the battery cell phantom, and the strain gauge is a thin-film-type sensor attached to the surface of the battery cell phantom.

[0050] Figure 2a is a side view of a battery cell replica according to an embodiment.

[0051] As shown in the figure, the battery cell phantom 10 may include at least one pad-type sensor 110, 120, and 130. The sensors 110, 120, and 130 may respectively correspond to a pressure sensor, a temperature sensor, a gas amount sensor, etc. For example, the pressure sensor 110 may measure the pressure applied to the battery cell phantom 10 from an external device during the manufacturing process and the pressure applied from the inside due to the expansion or deformation of the battery cell phantom 10, the temperature sensor 120 may measure the internal temperature of the battery cell phantom 10 or the temperature of the external environment, and the gas amount sensor 130 may sense the amount of gas generated inside the battery cell phantom 10.

[0052] Figure 2b is a plan view of a battery cell replica according to an embodiment.

[0053] As shown, the battery cell phantom 10 may include at least one strain gauge 141 to 145 for sensing deformation of the battery cell phantom 10. According to an embodiment, the strain gauge may be a thin film type sensor attached to the upper surface of the battery cell phantom 10 and is a device configured to detect mechanical minute changes as electrical signals.

[0054] According to one embodiment, the sensors 110, 120, and 130 and the strain gauges 141 to 145 can transmit the measurement data to the controller 20 through a communication unit capable of wireless communication (Bluetooth, Wi-Fi optical communication, RF communication, etc.) with an external device. Alternatively, a storage device included in the battery cell replica 10 can collect the data obtained by the sensors and transmit the measurement data to the controller 20 through the communication unit. Alternatively, the sensors and strain gauges can transmit the obtained data to an external device (e.g., a cloud PC, etc.) instead of the controller 20, and the controller 20 can obtain the battery manufacturing process related data from the external device through separate communication.

[0055] Figure 2a and Figure 2b The configuration and positions of the battery cell replica 10 and the sensors included therein shown in FIG. 1 are merely examples, and various sensors (eg, image sensors, magnetic sensors, current sensors, etc.) not specifically mentioned herein may be used to obtain process-related data.

[0056] Return to reference Figure 1 The battery cell phantoms 10, 11, 12, ... can be sequentially put into the battery cell manufacturing process 30, and each battery cell phantom obtains the battery manufacturing process related data (pressure, temperature, gas volume, deformation level, etc.). The data obtained using multiple battery cell phantoms can be stored in the process database by marking, and can be used by the controller 20 to calculate the optimal value of the process variable and control the process variable.

[0057] The controller 20 may control at least one process variable based on the manufacturing process data of the battery obtained using the battery cell replicas 10 , 11 , 12 . . .

[0058] The process variables (or design variables) may be set by the manufacturer during the battery manufacturing process and may affect the performance, quality, etc. of the battery. For example, the process variables may include the setting of the pressurizing device, the temperature inside the chamber, the battery storage period / temperature, the battery charging / discharging conditions, etc. The process variables affect the state of the manufactured battery cells, and more specifically, the setting of the pressurizing device may affect the pressure applied to the battery cells, the internal temperature of the chamber or the battery storage temperature may affect the internal / external temperature of the battery, and the battery charging / discharging conditions (charging current / voltage, number of cycles, period, etc.) may affect the internal gas volume or temperature of the battery.

[0059] According to an embodiment, the controller 20 can optimize at least one process variable based on the data of the battery obtained using the battery cell replicas 10, 11, 12, ... For example, the environment (equipment settings, chamber temperature, charging / discharging conditions, etc.) of the manufacturing process of batteries with specific specifications can be optimized to manufacture batteries with desired performance and finish levels. Conventionally, in this state, for example, when the process environment changes due to the introduction of new equipment, the installation of additional lines, changes in external temperature / humidity, etc., although the same process variables can be applied according to the changes in the environment, or some adjustments can be made according to the experience of technicians, it is difficult to obtain the best results as before.

[0060] On the other hand, using a battery manufacturing process management system according to an embodiment, a battery cell replica can be put into the manufacturing process to obtain data after the process environment changes, and the optimal process variables (for example, settings for manufacturing the same product as before the environment changes) can be calculated and applied by comparing with the existing process data to obtain the same process results as before.

[0061] According to an embodiment, the controller 20 may transmit an alarm message to a user based on the difference between the data obtained using the battery cell phantom 10, 11, 12... and the previously stored reference data. For example, by referring to the set value of the pressurizing device, when the pressure value applied to the battery cell phantom exceeds the allowable pressure value, an alarm message ("exceeding the allowable pressure") may be output to the user, thereby preventing losses from occurring in the manufacture of actual battery cells. In another example, the internal gas volume or temperature and deformation level of the battery cell phantom may be compared with the allowable gas volume, temperature and deformation values, respectively, and when the internal gas volume or temperature and deformation level of the battery cell phantom exceeds the allowable value, an alarm message may be output to the user in advance, thereby preventing losses from occurring in the manufacture of actual battery cells. The alarm message may be output by a display device connected to the controller 20.

[0062] Figure 3 The flowchart of the battery manufacturing process management method according to the embodiment is shown.

[0063] refer to Figure 3 In operation S310, a battery cell phantom may be used to obtain data related to the battery manufacturing process. The battery cell phantom may be a replica manufactured with the same specifications (size, specifications, etc.) as an actual battery cell product, and may be put into the battery cell manufacturing process to obtain data related to the manufacturing process.

[0064] According to an embodiment, the battery manufacturing process related data may include at least one of a pressure applied to the battery cell phantom, an internal or external temperature of the battery cell phantom, an internal gas amount of the battery cell phantom, and a deformation level of the battery cell phantom.

[0065] Figure 4 The operation of obtaining data in the battery manufacturing process management method according to the embodiment is shown in detail.

[0066] refer to Figure 4 , the operation S310 of obtaining the data related to the battery manufacturing process may include: the operation S311 of measuring the pressure applied to the battery cell phantom, the operation S312 of sensing the internal or external temperature of the battery cell phantom, the operation S313 of measuring the internal gas volume of the battery cell phantom, and the operation S314 of sensing the deformation of the battery cell phantom. However, the operations S311 to S314 may not be performed simultaneously or sequentially, and some of the operations may be performed in a different order from the order shown.

[0067] According to an embodiment, at least one of the operations S311 to S313 may be performed by a pad-type sensor (eg, Figure 2a The pressure sensor 110, the temperature sensor 120, the gas amount sensor 130, etc.) of the battery cell phantom may be used to perform the operation S314, and the operation S314 may be performed by a thin-film type sensor (eg, Figure 2b The strain gauges 141 to 145 etc. are implemented.

[0068] Return to reference Figure 3 In the operation S320, at least one process variable related to the battery manufacturing process may be controlled based on the manufacturing process data obtained using the battery cell phantom. The process variable may be set by the manufacturer during the battery manufacturing process and may affect the performance, quality, etc. of the battery. For example, the process variable may include the setting of the pressurizing device, the temperature inside the chamber, the battery storage period / temperature, the battery charging / discharging conditions, etc., the process variables may affect the state of the manufactured battery cell, and more specifically, the setting of the pressurizing device may affect the pressure applied to the battery cell, the internal temperature of the chamber or the battery storage temperature may affect the internal / external temperature of the battery, and the battery charging / discharging conditions (charging current / voltage, number of cycles, period, etc.) may affect the internal gas volume or temperature of the battery.

[0069] According to an embodiment, the operation S320 of controlling at least one process variable may include optimizing the at least one process variable based on data obtained using the battery cell phantom. On the other hand, when the process environment changes due to the introduction of new equipment, the installation of additional lines, changes in external temperature / humidity, etc., the battery cell phantom may be put into the manufacturing process to obtain data, and the optimal process variables (e.g., settings for manufacturing the same product as before the environmental change) may be calculated and applied by comparison with the existing process data, thereby obtaining the same process results as before.

[0070] Figure 5 The flowchart of the battery manufacturing process management method according to the embodiment is shown.

[0071] refer to Figure 5 In operation S410, the battery cell phantom may be used to obtain data related to the battery manufacturing process. Figure 3 Operation S310 is therefore not described in detail.

[0072] In the operation S420, an alarm message may be transmitted to a user based on a difference between data obtained using the battery cell phantom and previously stored reference data. For example, by referring to the set value of the pressurizing device, when the pressure value applied to the battery cell phantom exceeds the allowable pressure value, an alarm message ("exceeding the allowable pressure") may be output to the user, thereby preventing losses from occurring in the manufacture of actual battery cells. In another example, the internal gas amount or temperature and deformation level of the battery cell phantom may be compared with the allowable gas amount, temperature and deformation values, respectively, and when the internal gas amount or temperature and deformation level of the battery cell phantom exceed the allowable values, an alarm message may be output to the user in advance, thereby preventing losses from occurring in the manufacture of actual battery cells.

[0073] Reference Figures 3 to 5 The described battery manufacturing process management method may be performed by the above-mentioned battery manufacturing process management system, but may also be performed by devices or systems having other configurations, without being limited thereto.

[0074] Figure 6 A computing system for executing a battery manufacturing process management method according to an embodiment is shown.

[0075] refer to Figure 6 , a computing system 60 according to an embodiment disclosed herein may include a micro control unit (MCU) 610 , a memory 620 , an input / output interface (I / F) 630 , and a communication interface (I / F) 640 .

[0076] The MCU 610 may be a processor for executing various programs stored in the memory 620 and executing the battery manufacturing process management method through these programs.

[0077] The memory 620 may store various programs related to the diagnosis of the battery, etc. A plurality of memories 620 may be provided as needed. The memory 620 may include a volatile or non-volatile memory. For the memory 620 as a volatile memory, a random access memory (RAM), a dynamic RAM (DRAM), a static RAM (SRAM), etc. may be used. The memory 620 as a non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an electrically variable ROM (EAROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), a flash memory, etc. The examples of the memory 620 listed above are merely examples and are not limited thereto.

[0078] The input / output I / F 630 may provide an interface for transmitting and receiving data by connecting an input device (not shown) such as a keyboard, a mouse, a touch panel, and an output device such as a display (not shown) to the MCU 610 .

[0079] The communication I / F 630, which is a component capable of transmitting and receiving various data to and from a server, may be various devices capable of supporting wired or wireless communication. For example, a program for predicting the remaining life of a battery or learning an artificial neural network or various data may be transmitted to and received from a separately provided external server through the communication I / F 630.

[0080] The battery manufacturing process management method according to the embodiment can be implemented in the form of an application or program instruction that can be executed by various computer components and recorded in a computer-readable recording medium. The computer-readable recording medium can include program instructions, data files, data structures, etc., alone or in combination.

[0081] By using the battery manufacturing process management system and method according to the above-mentioned embodiment, by placing the battery cell phantom including the sensor into the battery manufacturing process in advance, process-related data (e.g., pressure, temperature, gas volume, deformation level, etc. applied to the battery cell) can be obtained, and a process database can be established based on the data. In addition, by calculating the optimal process variables (e.g., the setting of the pressurizing equipment, the chamber temperature, the charging / discharging conditions, etc.) and controlling the process variables in the battery manufacturing process, the risks associated with equipment replacement or new process line installation can be minimized. In addition, by providing feedback to the user based on the established database, performance degradation and defects of the battery cell caused by the process variables can be prevented and improved.

[0082] The above description merely illustrates the technical concept of the present disclosure, and various modifications and variations would be possible without departing from the basic features of the embodiments of the present disclosure by a person of ordinary skill in the art to which the embodiments disclosed herein pertain.

[0083] Therefore, the embodiments disclosed herein are intended to describe rather than limit the technical spirit of the embodiments disclosed herein, and the scope of the technical spirit of the present disclosure is not limited by these embodiments disclosed herein. The protection scope of the technical spirit disclosed herein should be interpreted by the attached claims, and all technical spirits within the same scope should be understood to be included within the scope of the present disclosure.

Claims

1. A battery manufacturing process management system, comprising: A battery cell phantom configured to obtain data related to a battery manufacturing process; as well as A controller is configured to control at least one process variable associated with the battery manufacturing process based on the battery manufacturing process related data obtained using the battery cell phantom.

2. The battery manufacturing process management system according to claim 1, wherein: The battery manufacturing process related data includes at least one of the following items: a pressure applied to the battery cell replica; The internal or external temperature of the battery cell replica; The internal gas volume of the battery cell replica; and The deformation level of the battery cell phantom.

3. The battery manufacturing process management system according to claim 2, wherein: The battery cell replica includes at least one of the following items: a pressure sensor configured to measure pressure applied to the battery cell replica; a temperature sensor configured to sense an internal or external temperature of the battery cell replica; a gas amount sensor configured to measure an internal gas amount of the battery cell replica; as well as A strain gauge is configured to sense deformation of the battery cell phantom.

4. The battery manufacturing process management system according to claim 3, wherein: The pressure sensor and the temperature sensor are pad type sensors included in the battery cell replica, and The strain gauge is a thin film type sensor attached to the surface of the battery cell replica.

5. The battery manufacturing process management system according to claim 1, wherein: The controller is also configured to optimize the at least one process variable based on the data obtained using the battery cell phantom.

6. The battery manufacturing process management system according to claim 5, wherein: The at least one process variable comprises at least one of the following: The setting of pressurized equipment; The temperature inside the chamber; Battery storage period; and Battery charge / discharge conditions.

7. The battery manufacturing process management system according to claim 5, wherein: The controller is also configured to transmit an alarm message to a user based on a difference between the data obtained using the battery cell phantom and previously stored reference data.

8. A battery manufacturing process management method, comprising: Use battery cell phantoms to obtain data related to the battery manufacturing process; as well as At least one process variable associated with the battery manufacturing process is controlled based on the battery manufacturing process related data obtained using the battery cell phantom.

9. The battery manufacturing process management method according to claim 8, wherein: The battery manufacturing process related data includes at least one of the following items: a pressure applied to the battery cell replica; The internal or external temperature of the battery cell replica; The internal gas volume of the battery cell replica; and The deformation level of the battery cell phantom.

10. The battery manufacturing process management method according to claim 9, wherein: Using the battery cell phantom to obtain the battery manufacturing process related data includes: measuring a pressure applied to the battery cell replica; sensing the internal or external temperature of the battery cell replica; measuring the amount of gas inside the battery cell replica; and Deformation of the battery cell phantom is sensed.

11. The battery manufacturing process management method according to claim 10, wherein: performing at least one of the measurement of the pressure, the sensing of the temperature, and the measurement of the internal gas amount using a pad type sensor included in the battery cell replica, and Sensing of the deformation of the battery cell phantom is performed using a thin film type sensor attached to a surface of the battery cell phantom.

12. The battery manufacturing process management method according to claim 8, wherein: Controlling the at least one process variable includes optimizing the at least one process variable based on data obtained using the battery cell phantom.

13. The battery manufacturing process management method according to claim 12, wherein: The at least one process variable comprises at least one of the following: The setting of pressurized equipment; The temperature inside the chamber; Battery storage period; and Battery charge / discharge conditions. 14 . The battery manufacturing process management method according to claim 12 , further comprising transmitting an alarm message to a user based on a difference between the data obtained using the battery cell phantom and previously stored reference data.

Citation Information

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