Degassing treatment device and method of operating the same

Abstract

A degassing treatment apparatus according to one embodiment disclosed herein includes an information acquisition unit that acquires an atmospheric pressure, and a controller that corrects a vacuum pressure during a battery degassing treatment based on the atmospheric pressure, wherein the vacuum pressure can be a pressure required to reach a vacuum state during the degassing treatment.

Description

Technical Field

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2024-0055601, filed on April 25, 2024, the disclosure of which is incorporated herein by reference. Technical Field

[0003] The embodiments disclosed herein relate to a degassing treatment apparatus and its operating method. Background Technology

[0004] Recently, research and development of rechargeable batteries have been actively pursued. Rechargeable batteries are batteries that can be charged and discharged, and include traditional Ni / Cd batteries, Ni / MH batteries, and more recently, lithium-ion batteries. Among these rechargeable batteries, lithium-ion batteries have the advantage of a much higher energy density than traditional Ni / Cd and Ni / MH batteries. Furthermore, lithium-ion batteries can be manufactured to be small and lightweight, thus they are used as power sources for mobile devices. Recently, the applications of lithium-ion batteries have expanded to include power sources for electric vehicles, and lithium-ion batteries are attracting attention as a next-generation energy storage medium.

[0005] In the degassing process to remove gases generated during charging and discharging in the battery activation process, the vacuum arrival time varies with atmospheric pressure. When the vacuum arrival time exceeds the allowable range, problems may occur in the degassing process, including unnecessary alarms and the process becoming unsustainable. Therefore, a method is needed to address the issue of vacuum arrival time varying with atmospheric pressure. Summary of the Invention

[0006] Technical issues

[0007] The purpose of the embodiments disclosed herein is to provide a degassing treatment device and its operating method, which can solve the problem that the degassing treatment time varies with atmospheric pressure.

[0008] The technical problems of the embodiments disclosed herein are not limited to those described above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

[0009] Technical solution

[0010] A degassing apparatus according to embodiments disclosed herein may include: an information acquisition unit that acquires atmospheric pressure; and a controller that corrects a vacuum pressure during battery degassing based on the atmospheric pressure, wherein the vacuum pressure may be the pressure during the degassing process until a vacuum state is reached.

[0011] In one implementation, the controller can calculate a correction pressure based on the atmospheric pressure and a reference atmospheric pressure, and correct the vacuum pressure based on the correction pressure.

[0012] In one embodiment, the controller may: calculate the input pressure from the reference atmospheric pressure to the target pressure; calculate the correction pressure as the difference between the reference atmospheric pressure and the atmospheric pressure; and correct the vacuum pressure based on the input pressure and the correction pressure.

[0013] In one implementation, the controller can calculate the vacuum pressure by adding the correction pressure to the input pressure.

[0014] In one implementation, if the difference between the atmospheric pressure and the reference atmospheric pressure increases, the degree of correction of the vacuum pressure is increased; and if the difference between the atmospheric pressure and the reference atmospheric pressure decreases, the degree of correction of the vacuum pressure is decreased.

[0015] In one embodiment, the controller can perform the degassing process based on the corrected vacuum pressure when the vacuum pressure is corrected, thereby achieving a vacuum state.

[0016] In one embodiment, the degassing process may be a process for removing gases generated inside the battery.

[0017] In one implementation, the controller can correct the vacuum pressure by reflecting the atmospheric pressure in real time.

[0018] The operation method of the degassing treatment apparatus according to the embodiments disclosed herein may include: acquiring atmospheric pressure; and correcting the vacuum pressure during battery degassing treatment based on the atmospheric pressure, wherein the vacuum pressure may be the pressure during the degassing treatment until a vacuum state is reached.

[0019] In one embodiment, the operation of correcting the vacuum pressure during the battery degassing process based on the atmospheric pressure may include: calculating a correction pressure based on the atmospheric pressure and a reference atmospheric pressure; and correcting the vacuum pressure based on the correction pressure.

[0020] In one embodiment, the operation of calculating the correction pressure based on the atmospheric pressure and the reference atmospheric pressure may include: calculating the input pressure from the reference atmospheric pressure to the target pressure; and calculating the correction pressure as the difference between the reference atmospheric pressure and the atmospheric pressure.

[0021] In one implementation, during the operation of correcting the vacuum pressure based on the correction pressure, the vacuum pressure can be corrected based on the input pressure and the correction pressure.

[0022] In one implementation, if the difference between the atmospheric pressure and the reference atmospheric pressure increases, the degree of correction of the vacuum pressure can be increased, and if the difference between the atmospheric pressure and the reference atmospheric pressure decreases, the degree of correction of the vacuum pressure can be decreased.

[0023] In one embodiment, the operation method may further include: when the vacuum pressure is corrected, performing the degassing process based on the corrected vacuum pressure to achieve a vacuum state.

[0024] In one embodiment, the degassing process may be a process for removing gases generated inside the battery.

[0025] Beneficial effects

[0026] The degassing apparatus and its operating method according to the embodiments disclosed herein can manage the vacuum arrival time during battery degassing according to changes in atmospheric pressure.

[0027] The degassing apparatus and its operating method according to the embodiments disclosed herein can correct the vacuum pressure during the degassing process based on atmospheric pressure.

[0028] The degassing treatment apparatus and its operating method according to the embodiments disclosed herein can be managed so that even when atmospheric pressure changes in real time, the problem of exceeding the allowable range of vacuum arrival time will not occur.

[0029] In addition, various effects that can be identified directly or indirectly through this article can be provided. Attached Figure Description

[0030] Figure 1 This is a block diagram illustrating a degassing treatment apparatus according to an embodiment disclosed herein.

[0031] Figure 2 This is a schematic diagram illustrating an example of a degassing treatment apparatus correcting vacuum pressure according to an embodiment disclosed in this document.

[0032] Figure 3 This is a flowchart illustrating the operation method of a degassing treatment apparatus according to an embodiment disclosed herein.

[0033] Figure 4 and Figure 5 This is a flowchart specifically illustrating the operation method of the degassing treatment apparatus according to the embodiments disclosed herein.

[0034] Figure 6This is a block diagram illustrating the hardware configuration of a computing system for performing an operation method of a degassing treatment apparatus according to an embodiment disclosed herein. Detailed Implementation

[0035] In the following, the embodiments disclosed herein will be described in detail with reference to the exemplary accompanying drawings. When adding reference numerals to components in each drawing, it should be noted that even if the same components are shown in different drawings, these same components will be given the same reference numerals as much as possible. Furthermore, in describing the embodiments disclosed herein, detailed descriptions of related known configurations or functions will be omitted if it is determined that such detailed descriptions would interfere with understanding the embodiments disclosed herein.

[0036] In describing components of the embodiments disclosed herein, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended only to distinguish components from other components, and the nature, order, or sequence of these components is not limited by these terms. Furthermore, unless otherwise defined, all terms used herein (including technical or scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments disclosed herein pertain. Terms defined in common dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant field, and unless explicitly defined in this application, they will not be interpreted in an idealized or overly formal sense.

[0037] Figure 1 This is a block diagram illustrating a degassing treatment apparatus according to an embodiment disclosed herein.

[0038] Reference Figure 1 The degassing treatment apparatus 100 according to the embodiments disclosed in this document may include an information acquisition unit 110 and a controller 120.

[0039] According to the embodiments, the degassing treatment apparatus 100 can be a device for performing degassing treatment. For example, degassing treatment can be a process for removing gases generated inside the battery. As another example, degassing treatment can be a process for removing gases generated in the battery after performing charging / discharging and aging treatments during the battery activation process.

[0040] The information acquisition unit 110 can acquire atmospheric pressure. For example, the information acquisition unit 110 can acquire atmospheric pressure measured from an external device or can directly measure atmospheric pressure. Alternatively, the information acquisition unit 110 can acquire atmospheric pressure via wired / wireless communication.

[0041] According to an embodiment, the information acquisition unit 110 can also acquire a reference atmospheric pressure. For example, the reference atmospheric pressure may be one atmosphere, but is not limited to this, and may include an atmospheric pressure set as a reference by the degassing treatment apparatus 100 itself. According to an embodiment, the reference atmospheric pressure may include 101.3 kPa.

[0042] The controller 120 can adjust the vacuum pressure during the battery degassing process based on atmospheric pressure. For example, the vacuum pressure can include the pressure during the degassing process until a vacuum state is reached. According to an embodiment, the vacuum state can include not only a state with no residual air, but also a state where the air has been reduced to below a set range.

[0043] The controller 120 can calculate the correction pressure based on atmospheric pressure and a reference atmospheric pressure. For example, the correction pressure could be the pressure used to correct for vacuum pressure. According to an embodiment, the controller 120 can calculate the input pressure required to reach the target pressure from the reference atmospheric pressure, and can calculate the correction pressure as the difference between the reference atmospheric pressure and the atmospheric pressure. According to an embodiment, when the reference atmospheric pressure is 101.3 kPa and the target pressure is 7.3 kPa, the controller 120 can calculate the input pressure as -94 kPa. Furthermore, when the current atmospheric pressure is 111.3 kPa, the controller 120 can calculate the correction pressure as -10 kPa. As another example, when the current atmospheric pressure is 91.3 kPa, the controller 120 can calculate the correction pressure as 10 kPa.

[0044] The controller 120 can correct the vacuum pressure based on a calibration pressure. For example, the controller 120 can correct the vacuum pressure based on the input pressure and the calibration pressure. Alternatively, the controller 120 can calculate the vacuum pressure by adding the calibration pressure to the input pressure. According to one embodiment, when the input pressure is -94 kPa and the calibration pressure is -10 kPa due to the current atmospheric pressure of 111.3 kPa, the controller 120 can correct the vacuum pressure to -104 kPa. According to another embodiment, when the input pressure is -94 kPa and the calibration pressure is 10 kPa due to the current atmospheric pressure of 91.3 kPa, the controller 120 can correct the vacuum pressure to -84 kPa.

[0045] According to the implementation method, the degree of vacuum pressure correction can be increased when the difference between the current atmospheric pressure and the reference atmospheric pressure increases. For example, since the controller 120 corrects the vacuum pressure based on the difference between the current atmospheric pressure and the reference atmospheric pressure and the input pressure, the degree of vacuum pressure correction can be increased if the difference between the current atmospheric pressure and the reference atmospheric pressure increases.

[0046] According to the implementation method, if the difference between the current atmospheric pressure and the reference atmospheric pressure decreases, the degree of vacuum pressure correction can be reduced. For example, since the controller 120 corrects the vacuum pressure based on the difference between the current atmospheric pressure and the reference atmospheric pressure and the input pressure, the degree of vacuum pressure correction can be reduced if the difference between the current atmospheric pressure and the reference atmospheric pressure decreases.

[0047] According to one embodiment, when the current atmospheric pressure becomes greater than the reference atmospheric pressure, the controller 120 can make corrections to increase the absolute value of the vacuum pressure. According to another embodiment, when the current atmospheric pressure becomes less than the reference atmospheric pressure, the controller 120 can correct the absolute value of the vacuum pressure to decrease it.

[0048] When calibrating the vacuum pressure, the controller 120 can perform a degassing process to achieve a vacuum state based on the calibrated vacuum pressure. For example, the controller 120 can perform the degassing process by reducing the calibrated vacuum pressure by controlling the pressure in the chamber.

[0049] According to the implementation, the controller 120 can correct the vacuum pressure by reflecting atmospheric pressure in real time. For example, since the correction of vacuum pressure may not be accurately reflected when atmospheric pressure changes rapidly, the controller 120 can correct the vacuum pressure in real time based on the real-time atmospheric pressure, so as to change the vacuum pressure even during the degassing process. That is, the controller 120 can prevent problems such as atmospheric pressure changes and vacuum arrival time exceeding the allowable range during the degassing process.

[0050] The degassing apparatus 100 according to the embodiments disclosed herein can manage the vacuum arrival time according to changes in atmospheric pressure during battery degassing.

[0051] The degassing apparatus 100 according to the embodiments disclosed herein can correct the vacuum pressure during the degassing process based on atmospheric pressure.

[0052] The degassing treatment apparatus 100 according to the embodiments disclosed herein can be managed so that even when atmospheric pressure changes in real time, the problem of exceeding the allowable range of vacuum arrival time will not occur.

[0053] Figure 2 This is a diagram illustrating an example of a degassing apparatus correcting vacuum pressure according to an embodiment disclosed herein.

[0054] Reference Figure 2In both high and low atmospheric pressure conditions, conventional degassing devices set the input pressure to the same level. That is, they reduce the pressure in the chamber to the same level regardless of atmospheric pressure. However, because it takes more time to further reduce the pressure during initial reduction, reaching a vacuum at lower atmospheric pressures may take longer than it would at a reference atmospheric pressure. Therefore, in conventional degassing devices, problems may arise on days with lower atmospheric pressures due to the delayed vacuum arrival time.

[0055] The degassing apparatus 100 according to the embodiments disclosed herein can maintain the target absolute pressure by correcting the vacuum pressure even when the atmospheric pressure changes. For example, the degassing apparatus 100 can correct the vacuum pressure based on the pressure difference between the current atmospheric pressure and the reference atmospheric pressure, so that the same target absolute pressure can be maintained even if the atmospheric pressure is high or low, thereby managing the vacuum arrival time to be similar.

[0056] Therefore, the degassing treatment apparatus 100 according to the embodiments disclosed herein can prevent equipment from floating on days with low atmospheric pressure due to the vacuum arrival time exceeding the allowable range.

[0057] Figure 3 This is a flowchart illustrating an operation method of a degassing treatment apparatus according to an embodiment disclosed herein. According to the embodiment, Figure 3 The operation shown can be performed by Figure 1 The degassing treatment device 100 is used to perform the process.

[0058] According to the embodiments, the degassing treatment apparatus 100 can be a device for performing degassing treatment. For example, degassing treatment can be a process for removing gases generated inside the battery. As another example, degassing treatment can be a process for removing gases generated in the battery after performing a charging / discharging and aging process during the battery activation process.

[0059] refer to Figure 3 In operation 310, the information acquisition unit 110 can acquire atmospheric pressure. For example, the information acquisition unit 110 can acquire atmospheric pressure measured from an external device or can directly measure atmospheric pressure. Alternatively, the information acquisition unit 110 can acquire atmospheric pressure via wired / wireless communication.

[0060] According to an embodiment, the information acquisition unit 110 can also acquire a reference atmospheric pressure. For example, the reference atmospheric pressure may be one atmosphere, but is not limited to this, and may include an atmospheric pressure set as a reference by the degassing treatment apparatus 100 itself. According to an embodiment, the reference atmospheric pressure may include 101.3 kPa.

[0061] In operation 320, the controller 120 can adjust the vacuum pressure during the battery degassing process based on atmospheric pressure. For example, the vacuum pressure can include the pressure maintained during the degassing process until a vacuum state is reached. According to embodiments, the vacuum state can include not only a state with no residual air, but also a state where the air has decreased to below a set range.

[0062] In operation 330, when the vacuum pressure is corrected, the controller 120 can perform degassing based on the corrected vacuum pressure to achieve a vacuum state.

[0063] According to the implementation method, the degassing process can be performed by omitting operation 330. That is, operation 330 can be performed by another device outside the degassing process device 100.

[0064] Figure 4 and Figure 5 This is a flowchart specifically illustrating the operation method of the degassing treatment apparatus according to the embodiments disclosed herein. Figure 4 and Figure 5 The operation shown can be performed by Figure 1 The degassing treatment device 100 is used to perform the process.

[0065] refer to Figure 4 In operation 410, the controller 120 can calculate the correction pressure based on atmospheric pressure and a reference atmospheric pressure. For example, the correction pressure could be the pressure used to correct for vacuum pressure. According to an embodiment, the controller 120 can calculate the input pressure required to reach the target pressure from the reference atmospheric pressure, and can calculate the correction pressure as the difference between the reference atmospheric pressure and the atmospheric pressure. According to an embodiment, when the reference atmospheric pressure is 101.3 kPa and the target pressure is 7.3 kPa, the controller 120 can calculate the input pressure as -94 kPa. Furthermore, when the current atmospheric pressure is 111.3 kPa, the controller 120 can calculate the correction pressure as -10 kPa. As another example, when the current atmospheric pressure is 91.3 kPa, the controller 120 can calculate the correction pressure as 10 kPa.

[0066] In operation 420, the controller 120 can correct the vacuum pressure based on a calibration pressure. For example, the controller 120 can correct the vacuum pressure based on the input pressure and the calibration pressure. Alternatively, the controller 120 can calculate the vacuum pressure by adding the calibration pressure to the input pressure. According to one embodiment, when the input pressure is -94 kPa and the calibration pressure is -10 kPa due to the current atmospheric pressure of 111.3 kPa, the controller 120 can correct the vacuum pressure to -104 kPa. According to another embodiment, when the input pressure is -94 kPa and the calibration pressure is 10 kPa due to the current atmospheric pressure of 91.3 kPa, the controller 120 can correct the vacuum pressure to -84 kPa.

[0067] According to the implementation method, if the difference between the current atmospheric pressure and the reference atmospheric pressure increases, the degree of vacuum pressure correction can be increased. For example, since the controller 120 corrects the vacuum pressure based on the difference between the current atmospheric pressure and the reference atmospheric pressure and the input pressure, the degree of vacuum pressure correction can be increased if the difference between the current atmospheric pressure and the reference atmospheric pressure increases.

[0068] According to the implementation method, if the difference between the current atmospheric pressure and the reference atmospheric pressure decreases, the degree of vacuum pressure correction can be reduced. For example, since the controller 120 corrects the vacuum pressure based on the difference between the current atmospheric pressure and the reference atmospheric pressure and the input pressure, the degree of vacuum pressure correction can be reduced if the difference between the current atmospheric pressure and the reference atmospheric pressure decreases.

[0069] According to one embodiment, when the current atmospheric pressure becomes greater than the reference atmospheric pressure, the controller 120 can perform a correction, thereby increasing the absolute value of the vacuum pressure. According to another embodiment, when the current atmospheric pressure becomes lower than the reference atmospheric pressure, the controller 120 can perform a correction, thereby decreasing the absolute value of the vacuum pressure.

[0070] refer to Figure 5 In operation 510, controller 120 can calculate the input pressure required to reach the target pressure from the reference atmospheric pressure. For example, the input pressure can be the difference between the target pressure and the reference atmospheric pressure.

[0071] In operation 520, controller 120 may calculate the correction pressure as the difference between a reference atmospheric pressure and atmospheric pressure. For example, controller 120 may calculate the correction pressure as the value obtained by subtracting atmospheric pressure from the reference atmospheric pressure. In another example, controller 120 may also calculate the correction pressure as the value obtained by subtracting the reference atmospheric pressure from atmospheric pressure.

[0072] According to the implementation, operations 510 and 520 can be included by... Figure 4 The operation will be executed in step 410.

[0073] Figure 6 This is a block diagram illustrating the hardware configuration of a computing system for performing an operation method of a degassing treatment apparatus according to an embodiment disclosed herein.

[0074] refer to Figure 6 The computing system 1000 according to the embodiments disclosed herein may include an MCU 1010, a memory 1020, an input / output I / F 1030, and a communication I / F 1040.

[0075] MCU 1010 can be a processor that executes various programs (e.g., calibration pressure calculation program, vacuum pressure calibration program, atmospheric pressure processing program, etc.) stored in memory 1020. These programs process various information including atmospheric pressure, reference atmospheric pressure, calibration pressure, vacuum pressure, input pressure, target pressure, etc., and execute the aforementioned... Figure 1 The function of the controller in the degassing device shown.

[0076] The memory 1020 can store various programs, such as calibration pressure calculation programs, vacuum pressure calibration programs, and atmospheric pressure processing programs. Furthermore, the memory 1020 can store various information, including atmospheric pressure, reference atmospheric pressure, calibration pressure, vacuum pressure, input pressure, target pressure, etc.

[0077] Multiple such memories 1020 can be provided as needed. Memory 1020 can be volatile or non-volatile memory. As volatile memory, memory 1020 can use RAM, DRAM, SRAM, etc. As non-volatile memory, memory 1020 can use ROM, PROM, EAROM, EPROM, EEPROM, flash memory, etc. The examples of memory 1020 listed above are merely examples, and memory 1020 is not limited to these examples.

[0078] As an input / output I / F1030, it can provide an interface that connects input devices such as a keyboard, mouse, or touch panel (not shown), output devices such as a display (not shown), and MCU 1010 to allow data to be sent and received between them.

[0079] The Communication I / F1040 can be configured to send and receive various data with a server, and can be any device capable of supporting wired or wireless communication. For example, the degassing unit can send and receive various information, including atmospheric pressure, reference atmospheric pressure, correction pressure, vacuum pressure, input pressure, target pressure, etc., to and from a separately provided external server via the Communication I / F1040.

[0080] In this way, a computer program according to the embodiments disclosed herein can be implemented as a module, which is executed, for example, by being recorded in memory 1020 and processed by MCU 1010. Figure 1 Each function shown.

[0081] The above description is merely an exemplary description of the technical concepts disclosed herein, and various modifications and variations can be made by those skilled in the art to which the embodiments disclosed herein pertain without departing from the basic characteristics of the embodiments disclosed herein.

[0082] Therefore, the embodiments disclosed herein are not intended to limit the technical concepts disclosed herein, but rather to interpret them, and the scope of the technical concepts disclosed herein is not limited by these embodiments. The scope of protection of the technical concepts disclosed herein should be interpreted by the following claims, and all technical concepts within the equivalent scope should be interpreted as included within the scope of the claims herein.

[0083] [Description of reference numerals in the attached figures]

[0084] 100: Degassing unit

[0085] 110: Information Acquisition Unit

[0086] 120: Controller

[0087] 1000: Computing System

[0088] 1010: MCU

[0089] 1020: Memory

[0090] 1030: Input / Output I / F

[0091] 1040: Communication I / F

Claims

1. A degassing treatment device, the degassing treatment device comprising: Information acquisition unit, wherein the information acquisition unit acquires atmospheric pressure; as well as A controller that corrects the vacuum pressure during the degassing process of the battery based on the atmospheric pressure. The vacuum pressure is the pressure during the degassing process until a vacuum state is reached.

2. The degassing treatment device according to claim 1, wherein, The controller calculates the correction pressure based on the atmospheric pressure and the reference atmospheric pressure, and corrects the vacuum pressure based on the correction pressure.

3. The degassing treatment device according to claim 2, wherein, The controller: Calculate the input pressure required to reach the target pressure from the reference atmospheric pressure; The correction pressure is calculated as the difference between the reference atmospheric pressure and the atmospheric pressure; and The vacuum pressure is corrected based on the input pressure and the correction pressure.

4. The degassing treatment device according to claim 3, wherein, The controller calculates the vacuum pressure by adding the correction pressure to the input pressure.

5. The degassing treatment device according to claim 1, wherein, If the difference between the atmospheric pressure and the reference atmospheric pressure increases, the degree of correction for the vacuum pressure is increased, and If the difference between the atmospheric pressure and the reference atmospheric pressure decreases, the degree of correction of the vacuum pressure is reduced.

6. The degassing treatment apparatus according to claim 1, wherein, If the vacuum pressure is corrected, the controller performs the degassing process based on the corrected vacuum pressure, thereby achieving a vacuum state.

7. The degassing treatment apparatus according to claim 1, wherein, The degassing process is a process for removing the gas generated inside the battery.

8. The degassing treatment apparatus according to claim 1, wherein, The controller corrects the vacuum pressure by reflecting the atmospheric pressure in real time.

9. A method of operating a degassing treatment device, the method comprising: The operation of obtaining atmospheric pressure; as well as Operation based on vacuum pressure during the degassing process of the atmospheric pressure correction battery. The vacuum pressure is the pressure during the degassing process until a vacuum state is reached.

10. The operating method according to claim 9, wherein, The operation of correcting the vacuum pressure during the degassing process of the battery based on the atmospheric pressure includes: The operation of calculating the corrected pressure based on the atmospheric pressure and the reference atmospheric pressure; and The operation of correcting the vacuum pressure based on the correction pressure.

11. The operating method according to claim 10, wherein, The operation of calculating the correction pressure based on the atmospheric pressure and the reference atmospheric pressure includes: The operation of calculating the input pressure to reach the target pressure from the reference atmospheric pressure; and The operation of calculating the correction pressure as the difference between the reference atmospheric pressure and the atmospheric pressure.

12. The operating method according to claim 11, wherein, In the operation of correcting the vacuum pressure based on the correction pressure, the vacuum pressure is corrected based on the input pressure and the correction pressure.

13. The operating method according to claim 9, wherein, If the difference between the atmospheric pressure and the reference atmospheric pressure increases, the degree of correction for the vacuum pressure is increased, and If the difference between the atmospheric pressure and the reference atmospheric pressure decreases, the degree of correction of the vacuum pressure is reduced.

14. The operating method according to claim 9, further comprising: If the vacuum pressure is corrected, the degassing process is performed based on the corrected vacuum pressure to achieve operation in a vacuum state.

15. The operating method according to claim 9, wherein, The degassing process is a process for removing the gas generated inside the battery.

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