A lithium battery vacuum storage method, device, storage medium and electronic equipment

Abstract

The application provides a lithium battery vacuum storage method, device, storage medium and electronic equipment, and relates to the technical field of lithium batteries. The method comprises the following steps: acquiring a storage duration of a lithium battery; determining a storage vacuum degree based on the storage duration, wherein the storage vacuum degree is the gas thinness of a lithium battery storage space; and controlling a vacuum air pump to perform a vacuumizing operation on the lithium battery storage space based on the storage vacuum degree. By storing the lithium battery in a vacuum environment, the water molecules in the air are prevented from accelerating the self-discharge of the lithium battery, and the power dissipation of the lithium battery during storage can be reduced.

Description

Technical Field

[0001] This application relates to the field of lithium battery technology, specifically to a method, apparatus, storage medium, and electronic device for vacuum storage of lithium batteries. Background Technology

[0002] With the development of technology, batteries have evolved from the earliest single-use batteries that could only be discharged once to rechargeable batteries that can be reused. In the early 20th century, the concept of lithium batteries was proposed, which ushered in the era of lithium-ion batteries. Lithium batteries have been widely used due to their advantages such as high energy density, long lifespan, and light weight.

[0003] In real life, there are often lithium batteries that are not used frequently. The self-discharge of lithium batteries leads to power loss. In humid environments, the polarity of water molecules in the air causes electrons in the negative electrode to move towards the tab, and lithium ions will move towards the negative electrode or the electrolyte interface at the same time, which accelerates the self-discharge of lithium batteries and makes power loss more serious. Therefore, there is an urgent need for a lithium battery storage method that reduces power loss. Summary of the Invention

[0004] This application provides a method, apparatus, storage medium, and electronic device for vacuum storage of lithium batteries. By storing lithium batteries in a vacuum environment, water molecules in the air are prevented from accelerating the self-discharge of the lithium batteries, thereby reducing the power consumption of the lithium batteries during storage.

[0005] A first aspect of this application provides a lithium battery vacuum storage method applied to a vacuum storage shell, the vacuum storage shell including a control module and a vacuum pump, the control module being coupled to the vacuum pump, the method comprising:

[0006] Obtain the storage duration for lithium batteries;

[0007] The storage vacuum degree is determined based on the storage duration, and the storage vacuum degree is the degree of gas scarcity in the lithium battery storage space;

[0008] Based on the storage vacuum level, the vacuum pump is controlled to perform a vacuuming operation on the lithium battery storage space.

[0009] The above technical solution determines the required vacuum level for different storage durations based on the user-inputted lithium battery storage time, and performs corresponding vacuuming operations on the lithium battery storage space. By isolating water molecules in the air of the lithium battery storage environment, the influence of water molecules is avoided to accelerate the self-discharge rate of the lithium battery, thereby enabling the lithium battery to maintain a higher charge in a vacuum environment.

[0010] Optionally, determining the storage vacuum level based on the storage duration includes:

[0011] If the storage duration is greater than the first threshold, then the storage vacuum degree is determined as the first storage vacuum degree;

[0012] If the storage duration is not greater than the first threshold, then the storage vacuum degree is determined as the second storage vacuum degree, where the first storage vacuum degree is higher than the second storage vacuum degree.

[0013] By adopting the above technical solution, different storage vacuum levels can be used to preserve lithium batteries for different storage duration requirements. Lower vacuum levels can be used for short-term storage to avoid damage to lithium batteries caused by high vacuum levels during short-term storage.

[0014] Optionally, before controlling the vacuum pump to perform a vacuuming operation on the lithium battery storage space based on the storage vacuum level, the method further includes:

[0015] Obtain the open-circuit voltage value of the lithium battery in a fully charged state;

[0016] Based on the open-circuit voltage value of the lithium battery in its fully charged state, determine the SOC fitting function of the lithium battery;

[0017] Obtain the current open-circuit voltage value of the lithium battery, and use the SOC fitting function to calculate the remaining capacity value of the lithium battery;

[0018] The lithium battery is charged or discharged based on its remaining charge value.

[0019] By adopting the above technical solution, the remaining capacity of the lithium battery is estimated using the open-circuit voltage method. The initial remaining capacity of the lithium battery will affect the capacity decay during storage. Therefore, it is necessary to control the initial remaining capacity of the lithium battery within a certain range before storage in order to reduce the power dissipation during storage.

[0020] Optionally, the vacuum storage casing further includes a charging unit and a discharging unit, wherein processing the lithium battery based on its remaining charge value includes:

[0021] If the remaining charge of the lithium battery is greater than the second threshold, the discharge unit is controlled to discharge the lithium battery.

[0022] If the remaining power of the lithium battery is less than a third threshold, the charging unit is controlled to charge the lithium battery, wherein the second threshold is greater than the third threshold.

[0023] By adopting the above technical solution and performing appropriate charging and discharging treatment, the power of the lithium battery can be controlled within a certain range. Too high or too low power will aggravate the self-discharge loss of the lithium battery during storage.

[0024] Optionally, after controlling the discharge unit to discharge the lithium battery if the remaining capacity of the lithium battery is greater than the second threshold, the method further includes:

[0025] Obtain the current remaining charge value of the lithium battery during discharge;

[0026] When the remaining charge value of the lithium battery during discharge is less than the second threshold, the discharge unit is controlled to stop discharging the lithium battery.

[0027] By adopting the above technical solution, after discharging a high-capacity lithium battery, its open-circuit voltage is detected, and the discharge process is stopped when the remaining charge is within a suitable range to avoid over-discharge.

[0028] Optionally, after controlling the charging unit to charge the lithium battery if the remaining capacity of the lithium battery is less than a third threshold, the method further includes:

[0029] Obtain the current remaining power value of the lithium battery during charging;

[0030] When the remaining charge value of the lithium battery during charging is greater than the third threshold, the charging unit is controlled to stop charging the lithium battery.

[0031] By adopting the above technical solution, after discharging a high-capacity lithium battery, its open-circuit voltage is detected, and the discharge process is stopped when the remaining charge is within a suitable range to avoid over-discharge.

[0032] A second aspect of this application provides a lithium battery vacuum storage case, the vacuum storage case including a control module (10), a vacuum pump (20), conductive contacts (30), a tab connector (40), and a spring (50).

[0033] The control module (10) includes the charging unit, the discharging unit and the microcontroller unit, and the control module (10) is filled in the opening of the vacuum storage shell;

[0034] The vacuum pump (20) is coupled to the microcontroller unit and is disposed on the outer wall of the vacuum storage shell;

[0035] The conductive contact (30) is coupled to the lower part of the control module (10), the tab connector (40) is connected to the tab of the lithium battery and aligned with the conductive contact (30), and the spring (50) is connected to the upper part of the lithium battery and the lower part of the control module (10).

[0036] A third aspect of this application provides a lithium battery vacuum storage device, the device comprising:

[0037] The storage duration acquisition module is used to acquire the storage duration of the lithium battery.

[0038] A storage vacuum degree determination module is used to determine the storage vacuum degree based on the storage duration, wherein the storage vacuum degree is the degree of gas scarcity in the lithium battery storage space;

[0039] The vacuum extraction module is used to control the vacuum pump to perform a vacuuming operation on the lithium battery storage space based on the storage vacuum level.

[0040] A fourth aspect of this application provides a computer storage medium storing a plurality of instructions adapted for loading by a processor and executing the method steps described above.

[0041] A fifth aspect of this application provides an electronic device, comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to execute the above-described method steps.

[0042] In summary, the beneficial effects of the technical solution provided in this application are as follows:

[0043] Based on the user's required lithium battery storage time, different storage vacuum levels are selected for vacuum storage of lithium batteries. By extracting air from the lithium battery storage space and isolating water molecules in the air from the lithium battery's tabs, the self-discharge rate of the lithium battery can be effectively reduced, thereby reducing power dissipation during the lithium battery storage process. Attached Figure Description

[0044] Figure 1 This is a schematic flowchart of a lithium battery vacuum storage method provided in an embodiment of this application;

[0045] Figure 2 This is a schematic diagram illustrating capacity decay at different SOCs provided in an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of the structure of a vacuum storage shell provided in an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of another vacuum storage shell provided in an embodiment of this application;

[0048] Figure 5 This is a schematic diagram of the structure of a lithium battery vacuum storage device provided in an embodiment of this application;

[0049] Figure 6 This is a schematic diagram of another lithium battery vacuum storage device provided in the embodiments of this application;

[0050] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0051] Explanation of reference numerals in the attached drawings: 10, Control module; 20, Vacuum pump; 30, Conductive contact; 40, Electrode connector; 50, Spring; 60, Electrode output terminal; 100, Storage duration acquisition module; 200, Storage vacuum degree determination module; 201, Storage duration judgment unit; 202, SOC processing unit; 203, Charge / discharge judgment unit; 204, Discharge termination unit; 205, Charging termination unit; 300, Vacuum extraction module; 1000, Electronic device; 1001, Processor; 1002, Communication bus; 1003, User interface; 1004, Network interface; 1005, Memory. Detailed Implementation

[0052] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0053] In the description of the embodiments of this application, words such as "illustrative," "for example," or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "illustrative," "for example," or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Rather, the use of words such as "illustrative," "for example," or "for example" is intended to present the relevant concepts in a specific manner.

[0054] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The terms "comprising," "including," "having," and variations thereof all mean "including but not limited to," unless otherwise specifically emphasized.

[0055] Please see Figure 1 This application provides a flowchart illustrating a lithium battery vacuum storage method to clearly explain the steps involved. This method can be implemented using a computer program, a microcontroller, or run on a lithium battery vacuum storage device based on the von Neumann architecture. The computer program can be integrated into the application or run as a standalone utility application.

[0056] S101, obtain the storage time for the lithium battery.

[0057] Storage duration refers to the storage duration parameter input by the user to meet different storage needs. The storage duration can be a fixed time set by the user on the setting panel, or a numeric input key can be set on the setting panel for the user to input the specific storage duration.

[0058] The basic principle of lithium battery storage is to charge the battery to a certain level and store it in a dry environment free from static electricity and magnetic fields. For long-term storage, it is necessary to charge and discharge the lithium battery periodically. The main factor causing the capacity decay of lithium batteries during storage is the self-discharge phenomenon. Self-discharge is divided into reversible self-discharge and irreversible self-discharge. The capacity loss due to reversible self-discharge is recoverable, while irreversible self-discharge will have a permanent impact on the battery's charge and discharge capacity. Factors affecting the self-discharge phenomenon of lithium batteries include ambient temperature, ambient humidity, battery state of charge (SOC), resting time, and separator thickness. Among these, ambient humidity and SOC are the considerations involved in the embodiments of this application.

[0059] S102, determine the storage vacuum degree based on the storage time, where the storage vacuum degree is the degree of gas scarcity in the lithium battery storage space.

[0060] Vacuum degree refers to the degree of rarefaction of gas in a vacuum state. A higher vacuum degree means a more rarefied gas. The vacuum degree value indicates that the actual pressure is lower than atmospheric pressure. Different vacuum degrees are required for different storage durations; lower vacuum degrees are used for shorter storage durations, while higher vacuum degrees are used for longer storage durations. During longer storage durations, slight air leakage may occur in the actual container space; a higher vacuum degree ensures long-term storage. For shorter storage durations, it is only necessary to maintain a moisture-free environment in the storage space. Excessively high vacuum degrees place certain quality requirements on the outer packaging of lithium batteries.

[0061] In an optional embodiment, if the storage duration is greater than a first threshold, the storage vacuum degree is determined as a first storage vacuum degree; if the storage duration is not greater than the first threshold, the storage vacuum degree is determined as a second storage vacuum degree.

[0062] After obtaining the storage duration, a first threshold is set to classify different storage vacuum levels. The first storage vacuum level is a higher vacuum level, and the second storage vacuum level is a lower vacuum level, corresponding to different storage duration requirements. For example, if the obtained storage duration is 30 days, which is less than the first threshold of 90 days, a lower vacuum level of -0.05 MPa is used; if the storage duration is 100 days, a higher vacuum level of -0.08 MPa is used.

[0063] In an optional embodiment, the open-circuit voltage value of the lithium battery in a fully charged state is obtained; based on the open-circuit voltage value of the lithium battery in a fully charged state, the SOC fitting function of the lithium battery is called; the current open-circuit voltage value of the lithium battery is obtained, and the remaining capacity value of the lithium battery is calculated based on the SOC fitting function; the lithium battery is charged or discharged based on the remaining capacity value of the lithium battery.

[0064] Before performing the vacuuming operation, obtain the open-circuit voltage value of the lithium battery in a fully charged state. The open-circuit voltage value in a fully charged state can be obtained from the nominal data of this type of battery in the database, or it can be manually entered by the user who is familiar with the lithium battery.

[0065] State of Charge (SOC) refers to the remaining charge of a battery, usually expressed as a percentage. The expression for SOC is: ,in This represents the remaining usable battery power at a given moment. This refers to the rated capacity of the battery, where The remaining usable battery capacity can be obtained from the open-circuit voltage value when fully charged. The SOC fitting function for this type of lithium battery is retrieved from the database. This function maps the relationship between the current open-circuit voltage and the remaining usable capacity. The SOC fitting curve is typically tested multiple times before the lithium battery leaves the factory, and the data is fitted and added to the factory data. Therefore, by obtaining the open-circuit voltage value of the lithium battery before vacuuming, the percentage of remaining capacity can be calculated. The current open-circuit voltage value can be obtained by setting a voltmeter in the control module to collect the current open-circuit voltage information of the lithium battery.

[0066] In an optional embodiment, if the remaining charge of the lithium battery is greater than a second threshold, the discharge unit is controlled to discharge the lithium battery; if the remaining charge of the lithium battery is less than a third threshold, the charging unit is controlled to charge the lithium battery, wherein the second threshold is greater than the set third threshold.

[0067] like Figure 2 The diagram shown is a schematic of capacity decay at different initial SOCs provided in an embodiment of this application, to illustrate the capacity decay rate at different initial SOCs.

[0068] The second and third thresholds represent the high and low range remaining battery capacity of the lithium battery, respectively. By setting the second and third thresholds, it is possible to detect whether the current remaining capacity of the lithium battery to be stored is within a suitable capacity range. High SOC and low SOC have different capacity decay rates. The suitable capacity range is different for different types of lithium batteries. The capacity decay rate of high SOC or low SOC is much greater than that of SOC within the suitable range. In order to reduce capacity decay, it is necessary to select a SOC percentage with a low capacity decay rate.

[0069] A charging circuit and a discharging circuit are set in the control module. When the remaining power value is greater than the second threshold, the discharging circuit is coupled to the two tabs of the lithium battery to be stored. When the remaining power value is less than the third threshold, the charging circuit is coupled to the two tabs of the lithium battery to be stored. Since the lithium battery to be stored does not need to be removed from the vacuum storage shell during use, it can supply power to the load through the electrode output terminal of the control module when it is not stored. Therefore, it is relatively easy to implement the charging and discharging process of the lithium battery to be stored in the control module, which will not be elaborated here.

[0070] In one optional embodiment, the current remaining charge value of the lithium battery during discharge is obtained; when the current remaining charge value of the lithium battery during discharge is less than a second threshold, the discharge unit is controlled to stop discharging the lithium battery.

[0071] When discharging lithium batteries with remaining charge greater than the second threshold, the open-circuit voltage of the lithium battery is detected in real time by a parallel voltmeter. The current remaining charge value is obtained by using the SOC fitting function and compared with the second threshold. Discharging is stopped in time when the charge is less than the second threshold.

[0072] In an optional embodiment, the current remaining power value of the lithium battery during charging is obtained; when the current remaining power value of the lithium battery during charging is greater than a third threshold, the charging unit is controlled to stop charging the lithium battery.

[0073] When charging a lithium battery with remaining charge less than the third threshold, the open-circuit voltage of the lithium battery is detected in real time by a parallel voltmeter. The current remaining charge value is obtained by using the SOC fitting function and compared with the third threshold. Charging is stopped in time when the charge is greater than the third threshold.

[0074] S103 uses a vacuum pump controlled by the storage vacuum level to perform a vacuuming operation on the lithium battery storage space.

[0075] To achieve an accurate storage vacuum level, the internal volume of the lithium battery storage space can be measured first to determine the air extraction rate of the vacuum pump. Alternatively, a vacuum pressure gauge can be installed inside the vacuum storage shell, and the vacuum pressure gauge can be coupled to the control module so that the control module can obtain the corresponding vacuum level value to adjust the air extraction rate of the vacuum pump.

[0076] By employing the above technical solutions, ensuring that the remaining stored power is within a suitable range and that the storage environment is free of moisture, the self-discharge rate of the lithium battery can be reduced, thereby reducing the power consumption of the lithium battery and achieving the effect of preserving the stored power of the lithium battery.

[0077] Please see Figure 3The figure shows a schematic diagram of a vacuum storage shell provided in an embodiment of this application. The situation shown in the figure is a vacuum storage shell in the state of being stored.

[0078] The vacuum storage shell includes a control module 10, a vacuum pump 20, conductive contacts 30, a tab connector 40, a spring 50, and an electrode output terminal 60. The control module 10 is filled in the opening of the vacuum storage shell and can move like a piston at the opening. The electrode output terminal 60 is provided on the outer surface of the control module 10, and the conductive contacts 30 are provided on the inner surface of the control module 10. The conductive contacts 30 are coupled to the electrode output terminal 60 through the control module 10. One end of the tab connector 40 is fixed to the tab of the lithium battery, and the other end of the tab connector 40 is bent and extended towards the control module 10, and the tab connector 40 abuts against the conductive contacts 30. The vacuum pump 20 is provided on the outer wall of the vacuum storage shell and coupled to the control module 10. The vacuum pump 20 is connected to the evacuation hole on the vacuum storage shell through an evacuation pipe. One end of the spring 50 is fixed to the insulating position between the two tabs of the lithium battery, and the other end is connected to the inner surface of the control module 10.

[0079] When in storage mode, the atmospheric pressure inside the vacuum storage shell is the same as the external atmospheric pressure. The outward expansion force of the spring 50 causes the control module 10 to slide outward, thereby allowing the conductive contact 30 to abut against the tab connector 40. The conductive contact 30 is coupled to the electrode output terminal 60 through the inside of the control module 10, thus connecting the lithium battery tab to the electrode output terminal 60. Therefore, the lithium battery can supply power to the load through the electrode output terminal 60. At the same time, the control module 10 can be equipped with a voltmeter, a charging unit, and a discharging unit, which achieve corresponding functions by electrically connecting to the two poles of the lithium battery. These will not be elaborated here.

[0080] Please see Figure 4 The figure shows a schematic diagram of another vacuum storage shell provided in the embodiment of this application, which is a vacuum storage shell in the process of storing lithium batteries.

[0081] After the above steps are performed, the vacuum pump 20 is driven to extract air from the vacuum storage shell. The reduced air pressure inside the shell causes the control module 10 to slide inwards, contracting the spring 50 and separating the conductive contact 30 from the tab connector. This disconnects the conductive contact 30 and the control module 10 from the lithium battery, achieving the purpose of vacuum storage of the lithium battery. Simultaneously, after reaching the required storage vacuum level, the vent can be closed to improve airtightness. Alternatively, a fixing component can be installed on the control module 10 to prevent it from sliding outwards, thus avoiding long-term storage affecting the storage effect. After the lithium battery storage is complete, the fixing component can be released from the control module 10.

[0082] Please see Figure 5This illustration shows a schematic diagram of a lithium battery vacuum storage device provided in an exemplary embodiment of this application. The device can be implemented as all or part of a whole through software, hardware, or a combination of both. The device includes a storage duration acquisition module 100, a storage vacuum degree determination module 200, and a vacuum extraction module 300.

[0083] Storage duration acquisition module 100 is used to acquire the storage duration of lithium batteries.

[0084] Storage vacuum degree determination module 200 is used to determine the storage vacuum degree based on the storage time. The storage vacuum degree is the degree of gas scarcity in the lithium battery storage space.

[0085] The vacuum extraction module 300 is used to control a vacuum pump based on the storage vacuum level to perform vacuuming operations on the lithium battery storage space.

[0086] Please see Figure 6 This is a schematic diagram of another lithium battery vacuum storage device provided in the embodiments of this application.

[0087] Optional, such as Figure 6 As shown, the device also includes:

[0088] The storage duration determination unit 201 is used to determine the storage vacuum degree as the first storage vacuum degree if the storage duration is greater than the first threshold, and to determine the storage vacuum degree as the second storage vacuum degree if the storage duration is not greater than the first threshold.

[0089] Optional, such as Figure 6 As shown, the device also includes:

[0090] The SOC processing unit 202 is used to obtain the open-circuit voltage value of the lithium battery when it is fully charged; based on the open-circuit voltage value of the lithium battery when it is fully charged, call the SOC fitting function of the lithium battery; obtain the current open-circuit voltage value of the lithium battery, calculate the remaining capacity value of the lithium battery based on the SOC fitting function; and perform charging or discharging processing on the lithium battery based on the remaining capacity value of the lithium battery.

[0091] Optional, such as Figure 6 As shown, the device also includes:

[0092] The charge / discharge determination unit 203 is used to control the discharge unit to discharge the lithium battery if the remaining capacity of the lithium battery is greater than the second threshold; and to control the charging unit to charge the lithium battery if the remaining capacity of the lithium battery is less than the third threshold, wherein the second threshold is greater than the set third threshold.

[0093] Optional, such as Figure 6 As shown, the device also includes:

[0094] The discharge termination unit 204 is used to obtain the current remaining power value of the lithium battery during discharge; when the current remaining power value of the lithium battery during discharge is less than the second threshold, the discharge unit is controlled to stop discharging the lithium battery.

[0095] Optional, such as Figure 6 As shown, the device also includes:

[0096] The charging stop unit 205 is used to obtain the current remaining power value of the lithium battery during charging; when the current remaining power value of the lithium battery during charging is greater than a third threshold, the charging unit is controlled to stop charging the lithium battery.

[0097] This application also provides a computer storage medium that can store multiple instructions, which are adapted to be loaded and executed by a processor as described above. Figures 1-6 The illustrated embodiment provides a method for converting a function block diagram into structured text. For details of the execution process, please refer to [link to relevant documentation]. Figures 1-6 The specific details of the illustrated embodiments will not be elaborated here.

[0098] Please see Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 7 As shown, the electronic device 1000 may include: at least one processor 1001, at least one network interface 1004, a user interface 1003, a memory 1005, and at least one communication bus 1002.

[0099] The communication bus 1002 is used to realize the connection and communication between these components.

[0100] The user interface 1003 may include a display screen and a camera. Optionally, the user interface 1003 may also include a standard wired interface and a wireless interface.

[0101] The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0102] The processor 1001 may include one or more processing cores. The processor 1001 connects to various parts of the server using various interfaces and lines, and performs various server functions and processes data by running or executing instructions, programs, code sets, or instruction sets stored in the memory 1005, and by calling data stored in the memory 1005. Optionally, the processor 1001 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 1001 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content to be displayed on the screen; and the modem handles wireless communication. It is understood that the modem may also not be integrated into the processor 1001 and may be implemented as a separate chip.

[0103] The memory 1005 may include random access memory (RAM) or read-only memory. Optionally, the memory 1005 may include a non-transitory computer-readable storage medium. The memory 1005 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 1005 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-described method embodiments, etc.; the data storage area may store data involved in the above-described method embodiments, etc. Optionally, the memory 1005 may also be at least one storage device located remotely from the aforementioned processor 1001. Figure 7 As shown, the memory 1005, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and an application for lithium battery vacuum storage.

[0104] exist Figure 7In the electronic device 1000 shown, the user interface 1003 is mainly used to provide an input interface for the user and to obtain the user input data; while the processor 1001 can be used to call an application program for lithium battery vacuum storage stored in the memory 1005. When executed by one or more processors, the electronic device performs one or more of the methods described in the above embodiments.

[0105] An electronic device readable storage medium stores instructions that, when executed by one or more processors, cause the electronic device to perform one or more of the methods described in the above embodiments.

[0106] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0107] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0108] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some service interfaces; indirect couplings or communication connections between devices or units may be electrical or other forms.

[0109] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0110] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0111] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, portable hard drives, magnetic disks, or optical disks.

[0112] The foregoing description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Those skilled in the art will readily conceive of other embodiments of this disclosure upon considering the specification and the disclosure of practical truth. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described in this disclosure. The specification and embodiments are considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A method for vacuum storage of lithium batteries, characterized in that, This invention relates to a vacuum storage shell, comprising a control module (10), a vacuum pump (20), conductive contacts (30), electrode tabs (40), a spring (50), and an electrode output terminal (60). The control module (10) is located within an opening in the vacuum storage shell and can move like a piston at the opening. The electrode output terminal (60) is located on the outer surface of the control module (10), and the conductive contacts (30) are located on the inner surface of the control module (10). The conductive contacts (30) are coupled to the electrode output terminal (60) via the control module (10). One end of the tab (40) is fixed to the tab of the lithium battery, and the other end of the tab connector (40) bends and extends toward the control module (10), and the tab connector (40) abuts against the conductive contact (30); the vacuum pump (20) is disposed on the outer wall of the vacuum storage shell and coupled to the control module (10), and the vacuum pump (20) is connected to the vacuum hole on the vacuum storage shell through the vacuum pipe; one end of the spring (50) is fixed to the insulating position between the two tabs of the lithium battery, and the other end is connected to the inner surface of the control module (10); the method includes: Obtain the storage duration for lithium batteries; The storage vacuum degree is determined based on the storage duration, and the storage vacuum degree is the degree of gas scarcity in the lithium battery storage space; The method of determining the storage vacuum degree based on the storage duration includes: if the storage duration is greater than a first threshold, then the storage vacuum degree is determined as a first storage vacuum degree; if the storage duration is not greater than the first threshold, then the storage vacuum degree is determined as a second storage vacuum degree, wherein the first storage vacuum degree is higher than the second storage vacuum degree. Based on the storage vacuum level, the vacuum pump is controlled to perform a vacuuming operation on the lithium battery storage space. The vacuuming operation is as follows: drive the vacuum pump (20) to extract the air inside the vacuum storage shell, causing the control module (10) to slide into the shell, causing the spring (50) to contract, and causing the conductive contact (30) to separate from the tab connector (40), thereby disconnecting the electrical connection between the conductive contact (30), the control module (10), and the lithium battery.

2. The method according to claim 1, characterized in that, Before controlling the vacuum pump to perform a vacuuming operation on the lithium battery storage space based on the storage vacuum level, the method further includes: Obtain the open-circuit voltage value of the lithium battery in a fully charged state; Based on the open-circuit voltage value of the lithium battery in its fully charged state, determine the SOC fitting function of the lithium battery; Obtain the current open-circuit voltage value of the lithium battery, and use the SOC fitting function to calculate the remaining capacity value of the lithium battery; The lithium battery is charged or discharged based on its remaining charge value.

3. The method according to claim 2, characterized in that, The vacuum storage casing also includes a charging unit and a discharging unit. The process of handling the lithium battery based on its remaining charge value includes: If the remaining charge of the lithium battery is greater than the second threshold, the discharge unit is controlled to discharge the lithium battery. If the remaining power of the lithium battery is less than a third threshold, the charging unit is controlled to charge the lithium battery, wherein the second threshold is greater than the third threshold.

4. The method according to claim 3, characterized in that, If the remaining charge of the lithium battery is greater than the second threshold, then after controlling the discharge unit to discharge the lithium battery, the method further includes: Obtain the current remaining charge value of the lithium battery during discharge; When the remaining charge value of the lithium battery during discharge is less than the second threshold, the discharge unit is controlled to stop discharging the lithium battery.

5. The method according to claim 3, characterized in that, If the remaining capacity of the lithium battery is less than a third threshold, then after controlling the charging unit to charge the lithium battery, the method further includes: Obtain the current remaining power value of the lithium battery during charging; When the remaining charge value of the lithium battery during charging is greater than the third threshold, the charging unit is controlled to stop charging the lithium battery.

6. A lithium battery vacuum storage device, characterized in that, This invention relates to a vacuum storage shell, comprising a control module (10), a vacuum pump (20), conductive contacts (30), electrode tabs (40), a spring (50), and an electrode output terminal (60). The control module (10) is located within an opening in the vacuum storage shell and can move like a piston at the opening. The electrode output terminal (60) is located on the outer surface of the control module (10), and the conductive contacts (30) are located on the inner surface of the control module (10). The conductive contacts (30) are coupled to the electrode output terminal (60) via the control module (10). One end of the tab connector (40) is fixed to the tab of the lithium battery, and the other end of the tab connector (40) is bent and extended toward the control module (10). The tab connector (40) abuts against the conductive contact (30). The vacuum pump (20) is disposed on the outer wall of the vacuum storage shell and coupled to the control module (10). The vacuum pump (20) is connected to the vacuum hole on the vacuum storage shell through the vacuum pipe. One end of the spring (50) is fixed to the insulating position between the two tabs of the lithium battery, and the other end is connected to the inner surface of the control module (10). The device includes: The storage duration acquisition module is used to acquire the storage duration of the lithium battery. A storage vacuum degree determination module is used to determine the storage vacuum degree based on the storage duration, wherein the storage vacuum degree is the degree of gas scarcity in the lithium battery storage space; The method of determining the storage vacuum degree based on the storage duration includes: if the storage duration is greater than a first threshold, then the storage vacuum degree is determined as a first storage vacuum degree; if the storage duration is not greater than the first threshold, then the storage vacuum degree is determined as a second storage vacuum degree, wherein the first storage vacuum degree is higher than the second storage vacuum degree. A vacuum extraction module is used to control a vacuum pump to perform a vacuuming operation on the lithium battery storage space based on the storage vacuum level. The vacuuming operation is as follows: drive the vacuum pump (20) to extract the air inside the vacuum storage shell, causing the control module (10) to slide into the shell, causing the spring (50) to contract, and causing the conductive contact (30) to separate from the tab connector (40), thereby disconnecting the electrical connection between the conductive contact (30), the control module (10), and the lithium battery.

7. A computer storage medium, characterized in that, The computer storage medium stores a plurality of instructions, which are adapted to be loaded by a processor and executed as the method steps of any one of claims 1 to 5.

8. An electronic device, comprising: A processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and executed as described in any one of claims 1 to 5.

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