Degassing process apparatus and operation method thereof

Abstract

A degassing process apparatus according to one embodiment disclosed in the present document comprises: an information acquisition unit for acquiring an atmospheric pressure; and a controller for correcting a vacuum pressure during the process of degassing a battery on the basis of the atmospheric pressure, wherein the vacuum pressure may be the pressure required to reach a vacuum state during the degassing process.

Description

Degas process device and its operating method

[0001] Cross-citation with related applications

[0002] This invention claims the benefit of priority from Korean Patent Application No. 10-2024-0055601, filed April 25, 2024, the entire contents of which are incorporated herein by reference.

[0003] Technology field

[0004] The embodiments disclosed in this document relate to a degas process device and a method of operating the same.

[0005] Recently, research and development on secondary batteries has been actively conducted. Here, secondary batteries are rechargeable and include both conventional Ni / Cd and Ni / MH batteries, as well as recent lithium-ion batteries. Among secondary batteries, lithium-ion batteries have the advantage of having a much higher energy density than conventional Ni / Cd and Ni / MH batteries. Furthermore, lithium-ion batteries can be manufactured in a compact and lightweight form, making them suitable for use as power sources for mobile devices. Recently, their use has expanded to include power sources for electric vehicles, attracting attention as a next-generation energy storage medium.

[0006] The degassing process, which removes gases generated during charging and discharging during the battery activation process, has a vacuum-reaching time that varies depending on atmospheric pressure. If the vacuum-reaching time exceeds the allowable range, the degassing process can generate unnecessary alarms and prevent the process from proceeding. Therefore, a solution is needed to address this issue of vacuum-reaching time varying with atmospheric pressure.

[0007] One purpose of the embodiments disclosed in this document is to provide a degas process device and an operating method thereof that can solve the problem of the degas process time varying depending on atmospheric pressure.

[0008] The technical problems of the embodiments disclosed in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the descriptions below.

[0009] A degas process device according to one embodiment disclosed in this document includes an information acquisition unit for acquiring atmospheric pressure and a controller for correcting vacuum pressure during a degas process of a battery based on the atmospheric pressure, wherein the vacuum pressure may be a pressure until a vacuum state is reached during the degas process.

[0010] In one embodiment, the controller can calculate a compensation pressure based on the atmospheric pressure and the reference atmospheric pressure, and compensate the vacuum pressure based on the compensation pressure.

[0011] In one embodiment, the controller can calculate an input pressure to reach a target pressure from the reference atmospheric pressure, calculate the correction pressure as a difference between the reference atmospheric pressure and the atmospheric pressure, and correct the vacuum pressure based on the input pressure and the correction pressure.

[0012] In one embodiment, the controller can calculate the vacuum pressure by adding the compensation pressure to the input pressure.

[0013] In one embodiment, as the difference between the atmospheric pressure and the reference atmospheric pressure increases, the degree of correction for the vacuum pressure may increase, and as the difference between the atmospheric pressure and the reference atmospheric pressure decreases, the degree of correction for the vacuum pressure may decrease.

[0014] In one embodiment, the controller can perform the degassing process to achieve a vacuum state based on the corrected vacuum pressure when the vacuum pressure is corrected.

[0015] In one embodiment, the degassing process may be a process for removing gas generated inside the battery.

[0016] In one embodiment, the controller can compensate for the vacuum pressure by reflecting the atmospheric pressure in real time.

[0017] A method of operating a degassing process device according to one embodiment disclosed in this document includes an operation of obtaining atmospheric pressure and an operation of correcting a vacuum pressure during a degassing process of a battery based on the atmospheric pressure, wherein the vacuum pressure may be a pressure until a vacuum state is reached during the degassing process.

[0018] In one embodiment, the operation of correcting the vacuum pressure during the degassing process of the battery based on the atmospheric pressure may include the operation of calculating the correction pressure based on the atmospheric pressure and the reference atmospheric pressure, and the operation of correcting the vacuum pressure based on the correction pressure.

[0019] In one embodiment, the operation of calculating the compensation pressure based on the atmospheric pressure and the reference atmospheric pressure may include an operation of calculating an input pressure for reaching a target pressure at the reference atmospheric pressure and an operation of calculating the compensation pressure as a difference between the reference atmospheric pressure and the atmospheric pressure.

[0020] In one embodiment, the operation of compensating the vacuum pressure based on the compensation pressure may compensate the vacuum pressure based on the input pressure and the compensation pressure.

[0021] In one embodiment, as the difference between the current atmospheric pressure and the reference atmospheric pressure increases, the degree of correction for the vacuum pressure may increase, and as the difference between the current atmospheric pressure and the reference atmospheric pressure decreases, the degree of correction for the vacuum pressure may decrease.

[0022] In one embodiment, when the vacuum pressure is corrected, the operation of performing the degassing process to achieve a vacuum state based on the corrected vacuum pressure may further include;

[0023] In one embodiment, the degassing process may be a process for removing gas generated inside the battery.

[0024] The degassing process device and its operating method according to one embodiment disclosed in this document can manage the change in vacuum reaching time according to atmospheric pressure in the degassing process of a battery.

[0025] A degas process device and its operating method according to one embodiment disclosed in this document can correct vacuum pressure during a degas process based on atmospheric pressure.

[0026] The degas process device and its operating method according to one embodiment disclosed in this document can be managed so that a problem of exceeding the allowable range of the vacuum reaching time does not occur even when the atmospheric pressure changes in real time.

[0027] In addition, various effects may be provided, either directly or indirectly, through this document.

[0028] FIG. 1 is a block diagram showing a degas process device according to one embodiment disclosed in this document.

[0029] FIG. 2 is a drawing showing an example of a degas process device according to one embodiment disclosed in this document correcting vacuum pressure.

[0030] FIG. 3 is a flowchart showing an operation method of a degas process device according to one embodiment disclosed in this document.

[0031] FIG. 4 and FIG. 5 are flowcharts specifically showing an operation method of a degas process device according to one embodiment disclosed in this document.

[0032] FIG. 6 is a block diagram showing the hardware configuration of a computing system for performing an operating method of a degas process device according to one embodiment disclosed in this document.

[0033] Hereinafter, embodiments disclosed in this document will be described in detail with reference to exemplary drawings. When designating components in each drawing, it should be noted that, where possible, identical components are given the same reference numerals, even if they appear in different drawings. Furthermore, when describing embodiments disclosed in this document, detailed descriptions of related known structures or functions will be omitted if they are deemed to hinder understanding of the embodiments disclosed in this document.

[0034] In describing the components of the embodiments disclosed in this document, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components and do not limit the nature, order, or sequence of the components. In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments disclosed in this document belong. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined in this application.

[0035] FIG. 1 is a block diagram showing a degas process device according to one embodiment disclosed in this document.

[0036] Referring to FIG. 1, a degas process device (100) according to one embodiment disclosed in this document may include an information acquisition unit (110) and a controller (120).

[0037] According to an embodiment, the degassing process device (100) may be a device for performing a degassing process. For example, the degassing process may be a process for removing gas generated within a battery. As another example, the degassing process may be a process for removing gas generated in a battery after the charging / discharging and aging processes are performed during the battery activation process.

[0038] 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 the atmospheric pressure. As another example, the information acquisition unit (110) can acquire atmospheric pressure via wired / wireless communication.

[0039] According to an embodiment, the information acquisition unit (110) may further acquire a reference atmospheric pressure. For example, the reference atmospheric pressure may be, but is not limited to, 1 atm, and may include a reference atmospheric pressure set by the degas process device (100) itself. According to an embodiment, the reference atmospheric pressure may include 101.3 kPa.

[0040] The controller (120) can compensate for the vacuum pressure during the degassing process of the battery based on atmospheric pressure. For example, the vacuum pressure may include the pressure required to reach a vacuum state during the degassing process. In some embodiments, the vacuum state may include not only a state in which no air remains, but also a state in which the air level falls below a set range.

[0041] The controller (120) can calculate the compensation pressure based on the atmospheric pressure and the reference atmospheric pressure. For example, the compensation pressure may be a pressure for compensating the vacuum pressure. In an embodiment, the controller (120) can calculate the input pressure for reaching the target pressure from the reference atmospheric pressure, and can calculate the compensation pressure as the difference between the reference atmospheric pressure and the atmospheric pressure. In an embodiment, the controller (120) can calculate the input pressure as -94 Kpa when the reference atmospheric pressure is 101.3 Kpa and the target pressure is 7.3 Kpa. In addition, the controller (120) can calculate the compensation pressure as -10 Kpa when the current atmospheric pressure is 111.3 Kpa. In another example, the controller (120) can calculate the compensation pressure as 10 Kpa when the current atmospheric pressure is 91.3 Kpa.

[0042] The controller (120) can compensate for the vacuum pressure based on the compensation pressure. For example, the controller (120) can compensate for the vacuum pressure based on the input pressure and the compensation pressure. For another example, the controller (120) can calculate the vacuum pressure by adding the compensation pressure to the input pressure. In an embodiment, the controller (120) can compensate for the vacuum pressure to -104 Kpa when the input pressure is -94 Kpa and the current atmospheric pressure is 111.3 Kpa, so that the compensation pressure is -10 Kpa. In another embodiment, the controller (120) can compensate for the vacuum pressure to -80.4 Kpa when the input pressure is -94 Kpa, the current atmospheric pressure is 91.3 Kpa, so that the compensation pressure is 10 Kpa.

[0043] According to an embodiment, the degree of vacuum pressure compensation may increase as the difference between the current atmospheric pressure and the reference atmospheric pressure increases. For example, since the controller (120) compensates for 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 compensation may increase as the difference between the current atmospheric pressure and the reference atmospheric pressure increases.

[0044] In an embodiment, as the difference between the current atmospheric pressure and the reference atmospheric pressure decreases, the degree of vacuum pressure compensation may decrease. For example, since the controller (120) compensates for vacuum pressure based on the difference between the current atmospheric pressure and the reference atmospheric pressure and the input pressure, as the difference between the current atmospheric pressure and the reference atmospheric pressure decreases, the degree of vacuum pressure compensation may decrease.

[0045] In one embodiment, when the current atmospheric pressure becomes greater than the reference atmospheric pressure, the controller (120) may compensate for an absolute value of the vacuum pressure to increase. In another embodiment, when the current atmospheric pressure becomes less than the reference atmospheric pressure, the controller (120) may compensate for an absolute value of the vacuum pressure to decrease.

[0046] When the vacuum pressure is corrected, the controller (120) can perform a degassing process to achieve a vacuum state based on the corrected vacuum pressure. For example, the controller (120) can perform a degassing process by controlling the chamber pressure to be lowered by the corrected vacuum pressure.

[0047] According to an embodiment, the controller (120) can compensate for vacuum pressure by reflecting atmospheric pressure in real time. For example, if the atmospheric pressure changes rapidly, the compensation for vacuum pressure may not be accurately reflected. Therefore, the controller (120) can compensate for vacuum pressure in real time based on the real-time atmospheric pressure, thereby changing the vacuum pressure even during the degassing process. In other words, the controller (120) can prevent the problem of the vacuum reaching time exceeding the allowable range due to changes in atmospheric pressure during the degassing process.

[0048] A degas process device (100) according to one embodiment disclosed in this document can manage changes in vacuum reaching time according to atmospheric pressure in a degas process of a battery.

[0049] The degas process device (100) according to one embodiment disclosed in this document can correct the vacuum pressure during the degas process based on the atmospheric pressure.

[0050] The degas process device (100) according to one embodiment disclosed in this document can be managed so that a problem of exceeding the allowable range of the vacuum reaching time does not occur even when the atmospheric pressure changes in real time.

[0051] FIG. 2 is a drawing showing an example of a degas process device according to one embodiment disclosed in this document correcting vacuum pressure.

[0052] Referring to Figure 2, the conventional degas process device set the input pressure to the same degree regardless of whether the atmospheric pressure was high or low. In other words, the conventional degas process device reduced the chamber pressure to the same degree regardless of the atmospheric pressure. However, since it takes longer to further reduce the pressure as the pressure is lowered, it may take longer to reach a vacuum under low atmospheric pressure than it takes to reach a vacuum under the reference atmospheric pressure. Therefore, on days when the atmospheric pressure is low, the conventional degas process device may experience problems due to the delayed time to reach a vacuum.

[0053] The degas process device (100) according to one embodiment disclosed in this document can maintain a target absolute pressure by compensating the vacuum pressure even when there is a change in atmospheric pressure. For example, the degas process device (100) can manage the vacuum pressure to be similar by compensating the vacuum pressure based on the pressure difference between the current atmospheric pressure and the reference atmospheric pressure, thereby maintaining the same target absolute pressure even when the atmospheric pressure is high or low.

[0054] Therefore, the degas process device (100) according to one embodiment disclosed in this document can prevent the problem of equipment floating due to the vacuum reaching time exceeding the allowable range on days when atmospheric pressure is low.

[0055]

[0056] FIG. 3 is a flowchart illustrating an operation method of a degas process device according to one embodiment disclosed in this document. According to the embodiment, the operations illustrated in FIG. 3 may be performed through the degas process device (100) of FIG. 1.

[0057] According to an embodiment, the degassing process device (100) may be a device for performing a degassing process. For example, the degassing process may be a process for removing gas generated within a battery. As another example, the degassing process may be a process for removing gas generated in a battery after the charging / discharging and aging processes are performed during the battery activation process.

[0058] Referring to FIG. 3, in operation 310, the information acquisition unit (110) may acquire atmospheric pressure. For example, the information acquisition unit (110) may acquire atmospheric pressure measured from an external device or may directly measure the atmospheric pressure. As another example, the information acquisition unit (110) may acquire atmospheric pressure via wired / wireless communication.

[0059] According to an embodiment, the information acquisition unit (110) may further acquire a reference atmospheric pressure. For example, the reference atmospheric pressure may be, but is not limited to, 1 atm, and may include a reference atmospheric pressure set by the degas process device (100) itself. According to an embodiment, the reference atmospheric pressure may include 101.3 kPa.

[0060] In operation 320, the controller (120) may compensate for the vacuum pressure during the degassing process of the battery based on atmospheric pressure. For example, the vacuum pressure may include the pressure required to reach a vacuum state during the degassing process. In an embodiment, the vacuum state may include not only a state in which no air remains, but also a state in which the air level falls below a set range.

[0061] In operation 330, the controller (120) can perform a degassing process to achieve a vacuum state based on the corrected vacuum pressure when the vacuum pressure is corrected.

[0062] According to an embodiment, operation 330 may be omitted and performed. That is, operation 330 may be performed through another device external to the degas process device (100).

[0063] FIGS. 4 and 5 are flowcharts specifically illustrating an operating method of a degas process device according to one embodiment disclosed in this document. The operations illustrated in FIGS. 4 and 5 may be performed through the degas process device (100) of FIG. 1.

[0064] Referring to FIG. 4, in operation 410, the controller (120) may calculate a compensation pressure based on the atmospheric pressure and the reference atmospheric pressure. For example, the compensation pressure may be a pressure for compensating for vacuum pressure. In an embodiment, the controller (120) may calculate an input pressure for reaching a target pressure from the reference atmospheric pressure, and may calculate the compensation pressure as the difference between the reference atmospheric pressure and the atmospheric pressure. In an embodiment, when the reference atmospheric pressure is 101.3 Kpa and the target pressure is 7.3 Kpa, the controller (120) may calculate the input pressure as -94 Kpa. In addition, when the current atmospheric pressure is 111.3 Kpa, the controller (120) may calculate the compensation pressure as -10 Kpa. In another example, when the current atmospheric pressure is 91.3 Kpa, the controller (120) may calculate the compensation pressure as 10 Kpa.

[0065] In operation 420, the controller (120) can compensate the vacuum pressure based on the compensation pressure. For example, the controller (120) can compensate the vacuum pressure based on the input pressure and the compensation pressure. For another example, the controller (120) can calculate the vacuum pressure by adding the compensation pressure to the input pressure. In an embodiment, the controller (120) can compensate the vacuum pressure to -104 Kpa when the input pressure is -94 Kpa and the current atmospheric pressure is 111.3 Kpa, so that the compensation pressure is -10 Kpa. In another embodiment, the controller (120) can compensate the vacuum pressure to -80.4 Kpa when the input pressure is -94 Kpa, the current atmospheric pressure is 91.3 Kpa, so that the compensation pressure is 10 Kpa.

[0066] According to an embodiment, the degree of vacuum pressure compensation may increase as the difference between the current atmospheric pressure and the reference atmospheric pressure increases. For example, since the controller (120) compensates for 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 compensation may increase as the difference between the current atmospheric pressure and the reference atmospheric pressure increases.

[0067] In an embodiment, as the difference between the current atmospheric pressure and the reference atmospheric pressure decreases, the degree of vacuum pressure compensation may decrease. For example, since the controller (120) compensates for vacuum pressure based on the difference between the current atmospheric pressure and the reference atmospheric pressure and the input pressure, as the difference between the current atmospheric pressure and the reference atmospheric pressure decreases, the degree of vacuum pressure compensation may decrease.

[0068] In one embodiment, when the current atmospheric pressure becomes greater than the reference atmospheric pressure, the controller (120) may compensate for an absolute value of the vacuum pressure to increase. In another embodiment, when the current atmospheric pressure becomes less than the reference atmospheric pressure, the controller (120) may compensate for an absolute value of the vacuum pressure to decrease.

[0069] Referring to FIG. 5, in operation 510, the controller (120) can calculate an input pressure to reach a target pressure from a reference atmospheric pressure. For example, the input pressure may be a difference between the target pressure and the reference atmospheric pressure.

[0070] In operation 520, the controller (120) can calculate the compensation pressure as the difference between the reference atmospheric pressure and the atmospheric pressure. For example, the controller (120) can calculate the compensation pressure as the value obtained by subtracting the atmospheric pressure from the reference atmospheric pressure. As another example, the controller (120) can also calculate the compensation pressure as the value obtained by subtracting the reference atmospheric pressure from the atmospheric pressure.

[0071] According to an embodiment, operations 510 and 520 may be performed as included in operation 410 of FIG. 4.

[0072] FIG. 6 is a block diagram showing the hardware configuration of a computing system for performing an operating method of a degas process device according to one embodiment disclosed in this document.

[0073] Referring to FIG. 6, a computing system (1000) according to one embodiment disclosed in the present document may include an MCU (1010), a memory (1020), an input / output I / F (1030), and a communication I / F (1040).

[0074] The MCU (1010) may be a processor that executes various programs (e.g., a compensation pressure calculation program, a vacuum pressure compensation program, an atmospheric pressure processing program, etc.) stored in the memory (1020), processes various information including atmospheric pressure, reference atmospheric pressure, compensation pressure, vacuum pressure, input pressure, target pressure, etc. through these programs, and performs the functions of the controller included in the degas process device shown in the aforementioned FIG. 1.

[0075] The memory (1020) can store various programs, such as a compensation pressure calculation program, a vacuum pressure compensation program, and an atmospheric pressure processing program. In addition, the memory (1020) can store various information, including atmospheric pressure, reference atmospheric pressure, compensation pressure, vacuum pressure, input pressure, and target pressure.

[0076] Such memories (1020) may be provided in multiple numbers as needed. The memories (1020) may be volatile memories or non-volatile memories. As volatile memories (1020), RAM, DRAM, SRAM, etc. may be used. As non-volatile memories (1020), ROM, PROM, EAROM, EPROM, EEPROM, flash memories, etc. may be used. The examples of the memories (1020) listed above are merely examples and are not limited to these examples.

[0077] The input / output I / F (1030) can provide an interface that enables data transmission and reception between an input device (not shown) such as a keyboard, mouse, or touch panel, and an output device (not shown) such as a display and the MCU (1010).

[0078] The communication I / F (1040) is a component capable of transmitting and receiving various data with the server, and may be any device capable of supporting wired or wireless communication. For example, the degas process device can transmit and receive various information, including atmospheric pressure, reference atmospheric pressure, compensation pressure, vacuum pressure, input pressure, and target pressure, from a separately provided external server via the communication I / F (1040).

[0079] In this way, a computer program according to one embodiment disclosed in this document may be implemented as a module that is recorded in a memory (1020) and processed by an MCU (1010) to perform each function illustrated in FIG. 1, for example.

[0080] The above description is merely an example of the technical idea disclosed in this document, and those skilled in the art to which the embodiments disclosed in this document pertain may make various modifications and variations without departing from the essential characteristics of the embodiments disclosed in this document.

[0081] Accordingly, the embodiments disclosed in this document are intended to illustrate, rather than limit, the technical concepts disclosed in this document, and the scope of the technical concepts disclosed in this document is not limited by these embodiments. The scope of protection of the technical concepts disclosed in this document should be interpreted by the claims below, and all technical concepts within the equivalent scope should be interpreted as being included within the scope of the rights of this document.

[0082] [Explanation of symbols]

[0083] 100: Degas process equipment

[0084] 110: Information Acquisition Department

[0085] 120: Controller

[0086] 1000: Computing Systems

[0087] 1010: MCU

[0088] 1020: Memory

[0089] 1030: Input / Output I / F

[0090] 1040: Communication I / F

Claims

1. Information acquisition unit for obtaining atmospheric pressure; and A controller is included that compensates the vacuum pressure during the degassing process of the battery based on the atmospheric pressure. The above vacuum pressure is a degassing process device that is a pressure until a vacuum state is reached during the degassing process.

2. In paragraph 1, The above controller, Calculate the compensation pressure based on the above atmospheric pressure and reference atmospheric pressure, A degas process device that compensates the vacuum pressure based on the compensation pressure.

3. In paragraph 2, The above controller, Calculate the input pressure to reach the target pressure from the above reference atmospheric pressure, The correction pressure is calculated as the difference between the above reference atmospheric pressure and the above atmospheric pressure, A degas process device that compensates the vacuum pressure based on the input pressure and the compensation pressure.

4. In paragraph 3, The above controller, A degas process device that calculates the vacuum pressure by adding the compensation pressure to the input pressure.

5. In paragraph 1, As the difference between the above atmospheric pressure and the reference atmospheric pressure increases, the degree of correction for the above vacuum pressure increases. A degas process device, wherein the degree of correction for the vacuum pressure decreases as the difference between the atmospheric pressure and the reference atmospheric pressure decreases.

6. In paragraph 1, The above controller, A degas process device that, when the above vacuum pressure is corrected, performs the degas process to achieve a vacuum state based on the corrected vacuum pressure.

7. In paragraph 1, The above degassing process is, A degassing process device, which is a process for removing gas generated inside the battery.

8. In paragraph 1, The above controller, A degas process device that corrects the vacuum pressure by reflecting the atmospheric pressure in real time.

9. The action of obtaining atmospheric pressure; and An operation for correcting vacuum pressure during a degassing process of a battery based on the above atmospheric pressure; The above vacuum pressure is a pressure until a vacuum state is reached during the above degassing process, and the method of operating the degassing process device.

10. In paragraph 9, The operation of compensating the vacuum pressure during the degassing process of the battery based on the above atmospheric pressure is as follows: An operation of calculating a compensation pressure based on the above atmospheric pressure and reference atmospheric pressure; and An operating method of a degas process device, comprising: an operation of correcting the vacuum pressure based on the correction pressure; 11. In paragraph 10, The operation of calculating the compensation pressure based on the above atmospheric pressure and reference atmospheric pressure is as follows: An operation for calculating an input pressure to reach a target pressure from the above reference atmospheric pressure; and An operating method of a degas process device, comprising: an operation of calculating the compensation pressure as a difference between the reference atmospheric pressure and the atmospheric pressure; 12. In paragraph 11, The operation of compensating the vacuum pressure based on the above compensation pressure is: A method of operating a degas process device, wherein the vacuum pressure is corrected based on the input pressure and the correction pressure.

13. In paragraph 9, As the difference between the current atmospheric pressure and the reference atmospheric pressure increases, the degree of correction for the vacuum pressure increases. A degas process device, wherein the degree of correction for the vacuum pressure decreases as the difference between the current atmospheric pressure and the reference atmospheric pressure decreases.

14. In paragraph 9, An operating method of a degassing process device, further comprising: an operation of performing the degassing process so as to create a vacuum state based on the corrected vacuum pressure when the vacuum pressure is corrected; 15. In paragraph 9, The above degassing process is, A method of operating a degassing process device, which is a process for removing gas generated inside the above battery.

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