Battery management method and device, terminal and storage medium

Abstract

The present disclosure relates to a battery management method and device, a terminal and a storage medium. The method comprises: acquiring a state parameter of a battery during operation; and discharging the battery if the state parameter meets a preset discharge condition. Through the method, the safety risk during use of the battery can be reduced, and the safety can be improved.

Description

Technical Field

[0001] This disclosure relates to the field of battery technology, and in particular to a battery management method, device, terminal, and storage medium. Background Technology

[0002] With the advent of the 5G era, mobile electronic devices such as smartphones are placing increasing demands on battery power. As battery power increases, the risk of damage under extreme conditions also rises. This is especially true since these mobile devices are almost always close to us, making them particularly vulnerable to causing irreparable injuries and becoming hidden "killers." Therefore, reducing battery safety risks is essential. Summary of the Invention

[0003] This disclosure provides a battery management method, apparatus, terminal, and storage medium.

[0004] According to a first aspect of the present disclosure, a battery management method is provided, comprising:

[0005] Obtain the battery's status parameters while it is operating;

[0006] If the state parameters meet the preset discharge conditions, the battery is discharged.

[0007] In some embodiments, the state parameters include the temperature and voltage of the battery; the preset discharge conditions include: preset different control levels, wherein the control levels include a mapping between temperature and voltage, and the preset different control levels are negatively correlated with temperature and voltage.

[0008] In some embodiments, discharging the battery if the state parameters meet preset discharge conditions includes:

[0009] If the temperature of the battery is greater than the temperature corresponding to the target control level, and the voltage of the battery is greater than the voltage corresponding to the target control level, the battery is discharged; wherein, the target control level is any one of the preset different control levels.

[0010] In some embodiments, the method further includes:

[0011] If, after discharge, the battery temperature is lower than the temperature corresponding to the target control setting, and / or the battery voltage is lower than the voltage corresponding to the target control setting, then stop discharging the battery.

[0012] In some embodiments, discharging the battery if the state parameters meet preset discharge conditions includes:

[0013] If the temperature of the battery is greater than the minimum temperature among the preset different control levels, and the voltage of the battery is greater than the minimum voltage among the preset different control levels, and the duration of these conditions is greater than the preset time threshold, the battery is short-circuited to discharge the battery.

[0014] In some embodiments, the state parameter includes the temperature within a preset time period, and the preset discharge condition includes a preset temperature;

[0015] The step of discharging the battery if the state parameters meet the preset discharge conditions includes:

[0016] If the battery temperature rises within a preset time period and the temperature after the rise exceeds the preset temperature, the battery is short-circuited to discharge the battery.

[0017] According to a second aspect of the present disclosure, a battery management device is provided, comprising:

[0018] The acquisition module is configured to acquire the status parameters of the battery when it is working.

[0019] The discharge module is configured to discharge the battery if the state parameters meet preset discharge conditions.

[0020] In some embodiments, the state parameters include the temperature and voltage of the battery; the preset discharge conditions include: preset different control levels, wherein the control levels include a mapping between temperature and voltage, and the preset different control levels are negatively correlated with temperature and voltage.

[0021] In some embodiments, the discharge module is configured to discharge the battery if the temperature of the battery is greater than the temperature corresponding to the target control level and the voltage of the battery is greater than the voltage corresponding to the target control level; wherein the target control level is any one of the preset different control levels.

[0022] In some embodiments, the apparatus further includes:

[0023] The stop module is configured to stop discharging the battery if, after discharge, the battery temperature is lower than the temperature corresponding to the target control level, and / or the battery voltage is lower than the voltage corresponding to the target control level.

[0024] In some embodiments, the discharge module is further configured to short-circuit the battery to discharge it if the temperature of the battery is greater than the minimum temperature among the preset different control levels, the voltage of the battery is greater than the minimum voltage among the preset different control levels, and the duration is greater than the preset time threshold.

[0025] In some embodiments, the state parameter includes the temperature within a preset time period, and the preset discharge condition includes a preset temperature;

[0026] The discharge module is further configured to short-circuit the battery to discharge it if the battery temperature rises within a preset time period and the temperature after the rise is greater than the preset temperature.

[0027] According to a third aspect of the present disclosure, a terminal is provided, comprising:

[0028] processor;

[0029] Memory used to store processor-executable instructions;

[0030] The processor is configured to execute the battery management method as described in the first aspect above.

[0031] According to a fourth aspect of the present disclosure, a storage medium is provided, comprising:

[0032] When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the battery management method as described in the first aspect above.

[0033] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0034] In the embodiments of this disclosure, by monitoring the state parameters of the battery during operation, the battery is discharged when the state parameters meet the preset discharge conditions. This is a safety management based on the power control of the battery itself, which can reduce safety risks during battery use and improve safety.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0037] Figure 1 This is a flowchart illustrating a battery management method according to an embodiment of the present disclosure.

[0038] Figure 2 This is an example diagram illustrating a control principle in an embodiment of this disclosure.

[0039] Figure 3 This is a diagram illustrating a battery management device according to an exemplary embodiment.

[0040] Figure 4This is a block diagram of a terminal shown in an embodiment of this disclosure. Detailed Implementation

[0041] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0042] Figure 1 This is a flowchart illustrating a battery management method according to an embodiment of this disclosure, such as... Figure 1 As shown, the battery management method applied in the terminal includes the following steps:

[0043] S11. Obtain the status parameters of the battery when it is working;

[0044] S12. If the state parameters meet the preset discharge conditions, discharge the battery.

[0045] In embodiments of this disclosure, the terminal device includes a mobile phone, tablet computer, or wearable device, etc. The terminal device includes a battery to provide power to the terminal device.

[0046] In step S11, the terminal device acquires the battery's status parameters during operation. These status parameters include electrical signal values ​​of the battery during operation, such as current and voltage values; they may also include the battery's temperature or charge level. The battery's operating states include charging and discharging states. The charging state is when the battery receives power from an external power source, while the discharging state is when the battery provides power support.

[0047] In step S12, the battery is discharged when the state parameters meet the preset discharge conditions. The preset discharge conditions correspond to the state parameters. For example, if the state parameters include a current value, the preset discharge conditions are determined based on the current; if the state parameters include a combination of charge and temperature values, the preset discharge conditions are determined based on the combination of charge and temperature.

[0048] It should be noted that, in the embodiments of this disclosure, the preset discharge conditions can be determined by technicians in a laboratory environment based on the state parameters of a large number of batteries during operation, identifying critical parameters that indicate the battery will be under safety risk. Different battery models may have different preset discharge conditions. This safety risk, for example, could be that the battery operates at high temperatures, causing the internal separator to shrink and resulting in a short circuit, which could lead to dangerous situations such as explosion or combustion.

[0049] For example, in an embodiment of this disclosure, if the battery charge is greater than a preset charge value and the battery temperature is greater than a preset temperature value during the charging process, it means that the battery has a certain amount of charge and can provide power support to other devices. However, if the battery temperature is too high, there may be a risk of explosion. Therefore, the battery can be discharged moderately at this time to alleviate the safety risks caused by overheating.

[0050] For example, during normal charging or discharging, the current flowing through the battery fluctuates slightly. However, if the current across the battery suddenly increases in a short period of time, it indicates that there may be an abnormality in the battery's charging and discharging circuit, such as a short circuit. In this case, the rapid increase in current may also cause a sharp rise in battery temperature, thus posing a safety risk. Therefore, discharging the battery can reduce its temperature.

[0051] It should be noted that this disclosure can monitor battery status parameters and control battery discharge based on the central processing unit of the terminal device; alternatively, it can also monitor status parameters and control discharge based on a control chip independent of the central processing unit. Furthermore, in the embodiments of this disclosure, if the battery's status parameters meet preset discharge conditions during discharge, the control of battery discharge differs from the discharge control when the battery provides power to the terminal. Additionally, when discharging the battery, this disclosure can either discharge the battery for a predetermined duration or stop discharging only after determining that the conditions for stopping discharge are met based on the status parameters after discharge; this disclosure does not limit the scope of the embodiments.

[0052] In related technologies, battery management involves two main approaches: one is to control the charging process, such as reducing the charging current if an anomaly is detected (e.g., excessively high battery temperature). Another approach is to monitor the ambient temperature during battery use and issue an alarm when the temperature becomes too high, prompting the user to determine whether to continue operating the battery in that environment. It's understandable that these external control methods have inherent risks. Firstly, even if the charging current is reduced, the battery temperature may not decrease, still posing a risk. Secondly, user alerts may not be immediately noticed, or users may fail to take action after noticing the issue, thus these methods also carry inherent risks.

[0053] This disclosure, by monitoring the state parameters of the battery during operation, discharges the battery when the state parameters meet the preset discharge conditions. This is based on the safe management of the battery's own power control, which can reduce safety risks during battery use and improve safety.

[0054] In one embodiment, the state parameters include the temperature and voltage of the battery; the preset discharge conditions include: preset different control levels, wherein the control levels include a mapping between temperature and voltage, and the preset different control levels are negatively correlated with temperature and voltage.

[0055] In this embodiment of the disclosure, the preset discharge conditions include multiple control levels. Since the higher the voltage, the faster the battery temperature rises, it is necessary to start control when the battery temperature is still relatively low when the voltage is high. Therefore, in the preset control levels of this disclosure, temperature and voltage are negatively correlated.

[0056] For example, the battery voltage is divided into several segments, such as V1, V2, ..., Vn, Vmax, where Vmax > Vn > V2 > V1, and the corresponding control temperatures are T1, T2, ..., Tn, Tmax, where T1 < T2 < Tn < Tmax.

[0057] In one embodiment, discharging the battery if the state parameters meet preset discharge conditions includes:

[0058] If the temperature of the battery is greater than the temperature corresponding to the target control level, and the voltage of the battery is greater than the voltage corresponding to the target control level, the battery is discharged; wherein, the target control level is any one of the preset different control levels.

[0059] In this embodiment, the battery is discharged when the battery temperature is greater than the temperature of any one of the multiple control levels (the target control level) and the battery voltage is greater than the voltage corresponding to that level. For example, the battery is discharged when the real-time temperature Tb > T1 and the real-time voltage Vb > Vmax; or, the battery is discharged when the real-time temperature Tb > Tmax and the real-time voltage Vb > V1.

[0060] It is understood that this disclosure provides multi-level hierarchical control, which offers more refined management and reduces safety risks. This disclosure enables hierarchical control of battery discharge through a hierarchical controller. The specific circuit connection method of the hierarchical controller is not limited in this embodiment, as long as it enables the aforementioned hierarchical control function of the battery.

[0061] In one embodiment, the method further includes:

[0062] If, after discharge, the battery temperature is lower than the temperature corresponding to the target control setting, and / or the battery voltage is lower than the voltage corresponding to the target control setting, then stop discharging the battery.

[0063] In this embodiment, by monitoring the battery's state parameters in real time, if the battery temperature is lower than the temperature value corresponding to the target control level and / or the battery voltage is lower than the voltage value corresponding to the target control level after discharge, the battery will not continue to discharge until the battery's state parameters meet the preset discharge conditions again. It is understood that this method can reduce unnecessary discharge control.

[0064] It should be noted that the reason why the battery temperature and voltage exceed the control threshold may be due to the battery operating in a high-temperature environment. In the embodiments of this disclosure, by controlling the battery discharge through the above-described graded control method, the occurrence of battery expansion or thermal loss caused by excessive temperature can be reduced, thereby improving safety and reducing unnecessary discharge.

[0065] In one embodiment, discharging the battery if the state parameters meet preset discharge conditions includes:

[0066] If the temperature of the battery is greater than the minimum temperature among the preset different control levels, and the voltage of the battery is greater than the minimum voltage among the preset different control levels, and the duration of these conditions is greater than the preset time threshold, the battery is short-circuited to discharge the battery.

[0067] The preset time threshold can be determined in advance in a laboratory environment based on the state parameters and operating time of a large number of batteries, indicating the critical duration at which the battery will be under safety risk. Different battery models may have different preset time thresholds.

[0068] In this embodiment, when the battery temperature continuously exceeds the minimum temperature among preset control levels, and the battery voltage also continuously exceeds the minimum voltage among preset control levels for a duration exceeding a preset time threshold, the battery is short-circuited to achieve rapid discharge. For example, this can be achieved by irreversibly short-circuiting the battery using an emergency controller. The specific circuit connection method of the emergency controller is not limited in this embodiment, as long as it enables the aforementioned short-circuiting of the battery to achieve rapid discharge.

[0069] It should be noted that in the embodiments of this disclosure, when the battery temperature and voltage exceed the minimum control threshold for an extended period, it indicates that the external ambient temperature has exceeded the battery's tolerance limit, and the battery is at risk of thermal runaway at any time. For example, in cases where the battery's real-time temperature Tb > T1, battery voltage Vb > V1, and duration t > t1, the control chip uses an emergency controller to irreversibly short-circuit the battery terminals to achieve rapid discharge, reducing the occurrence of dangerous situations and improving safety.

[0070] In one embodiment, the state parameter includes the temperature within a preset time period, and the preset discharge condition includes a preset temperature;

[0071] The step of discharging the battery if the state parameters meet the preset discharge conditions includes:

[0072] If the battery temperature rises within a preset time period and the temperature after the rise exceeds the preset temperature, the battery is short-circuited to discharge the battery.

[0073] In this embodiment, the state parameter can also be the temperature within a preset time period, which is an extremely short time period. If the battery temperature rises to a temperature greater than the preset temperature within the extremely short time period (the battery temperature rises sharply), for example, when the real-time battery temperature Tb is Tb≥Te (Te>>T1) in an extremely short time (t<t0), the battery is short-circuited to achieve rapid discharge, for example, by irreversibly short-circuiting the battery through an emergency controller.

[0074] It should be noted that in the embodiments of this disclosure, the reason for the rapid rise in battery temperature within a short period of time may be that the battery has been subjected to an external impact. Such a rapid temperature increase in a short period of time, once reaching a certain value, could potentially cause the battery to burn or explode, thus posing a safety hazard.

[0075] This disclosure achieves rapid discharge by monitoring the temperature within a preset time period and short-circuiting when the temperature rises above the preset temperature, thereby reducing the occurrence of dangerous situations and improving safety.

[0076] Figure 2 This is an example diagram of a control principle in an embodiment of this disclosure, such as... Figure 2 As shown, the control chip connects to the graded controller and the emergency controller. The control chip, graded controller, and emergency controller can be part of the battery's protection board. The positive terminal p+ of the battery protection board is connected to the positive terminal B+ of the battery, and the negative terminal p- of the battery protection board is connected to the negative terminal B- of the battery. Through these connections, the control chip can achieve graded control of the battery via the graded controller and emergency control of the battery via the emergency controller.

[0077] Figure 3 This is a diagram illustrating a battery management device according to an exemplary embodiment. (Refer to...) Figure 3 In an optional embodiment, the device includes:

[0078] Module 101 is configured to acquire the status parameters of the battery when it is working.

[0079] The discharge module 102 is configured to discharge the battery if the state parameters meet preset discharge conditions.

[0080] In some embodiments, the state parameters include the temperature and voltage of the battery; the preset discharge conditions include: preset different control levels, wherein the control levels include a mapping between temperature and voltage, and the preset different control levels are negatively correlated with temperature and voltage.

[0081] In some embodiments, the discharge module 102 is configured to discharge the battery if the temperature of the battery is greater than the temperature corresponding to the target control level and the voltage of the battery is greater than the voltage corresponding to the target control level; wherein the target control level is any one of the preset different control levels.

[0082] In some embodiments, the apparatus further includes:

[0083] The stop module 103 is configured to stop discharging the battery if, after discharge, the battery temperature is lower than the temperature corresponding to the target control level, and / or the battery voltage is lower than the voltage corresponding to the target control level.

[0084] In some embodiments, the discharge module 102 is further configured to short-circuit the battery to discharge it if the temperature of the battery is greater than the minimum temperature among the preset different control levels, the voltage of the battery is greater than the minimum voltage among the preset different control levels, and the duration is greater than the preset time threshold.

[0085] In some embodiments, the state parameter includes the temperature within a preset time period, and the preset discharge condition includes a preset temperature;

[0086] The discharge module 102 is further configured to short-circuit the battery to discharge it if the battery temperature rises within a preset time period and the temperature after the rise is greater than the preset temperature.

[0087] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0088] Figure 4 This is a block diagram illustrating a mobile terminal device 800 according to an exemplary embodiment. For example, device 800 may be a mobile phone, a mobile computer, etc.

[0089] Reference Figure 4 The device 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816.

[0090] Processing component 802 typically controls the overall operation of device 800, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 802 may include one or more modules to facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

[0091] Memory 804 is configured to store various types of data to support the operation of device 800. Examples of this data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0092] The power supply component 806 provides power to the various components of the device 800. The power supply component 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 800.

[0093] Multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 808 includes a front-facing camera and / or a rear-facing camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0094] Audio component 810 is configured to output and / or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when device 800 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

[0095] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0096] Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of device 800. For example, sensor assembly 814 may detect the on / off state of device 800, the relative positioning of components such as the display and keypad of device 800, changes in the position of device 800 or a component of device 800, the presence or absence of user contact with device 800, the orientation or acceleration / deceleration of device 800, and temperature changes of device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 814 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0097] Communication component 816 is configured to facilitate wired or wireless communication between device 800 and other devices. Device 800 can access wireless networks based on communication standards, such as Wi-Fi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 816 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 816 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0098] In an exemplary embodiment, the apparatus 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0099] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, which can be executed by a processor 820 of the device 800 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0100] A non-transitory computer-readable storage medium, wherein instructions in the storage medium, when executed by a terminal's processor, enable the terminal to perform a battery management method, the method comprising:

[0101] Obtain the battery's status parameters while it is operating;

[0102] If the state parameters meet the preset discharge conditions, the battery is discharged.

[0103] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure 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 disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0104] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A battery management method, characterized in that, The method includes: Acquire the state parameters of the battery during discharge; the state parameters include: the temperature and voltage of the battery; If the state parameters meet the preset discharge conditions, the battery is discharged; wherein, the preset discharge conditions include: preset different control levels, the control levels include a mapping between temperature and voltage, and the preset different control levels are negatively correlated with temperature and voltage; The step of discharging the battery if the state parameters meet the preset discharge conditions includes: If the temperature of the battery is greater than the minimum temperature among the preset different control levels, the voltage of the battery is greater than the minimum voltage among the preset different control levels, and the duration is greater than a preset time threshold, the battery is short-circuited to discharge the battery.

2. The method according to claim 1, characterized in that, The step of discharging the battery if the state parameters meet the preset discharge conditions includes: If the temperature of the battery is greater than the temperature corresponding to the target control level, and the voltage of the battery is greater than the voltage corresponding to the target control level, the battery is discharged; wherein, the target control level is any one of the preset different control levels.

3. The method according to claim 2, characterized in that, The method further includes: If, after discharge, the battery temperature is lower than the temperature corresponding to the target control setting, and / or the battery voltage is lower than the voltage corresponding to the target control setting, then stop discharging the battery.

4. The method according to claim 1, characterized in that, The state parameters include the temperature within a preset time period, and the preset discharge conditions include a preset temperature. The step of discharging the battery if the state parameters meet the preset discharge conditions includes: If the battery temperature rises within a preset time period and the temperature after the rise exceeds the preset temperature, the battery is short-circuited to discharge the battery.

5. A battery management device, characterized in that, The device includes: The acquisition module is configured to acquire state parameters of the battery during discharge; the state parameters include: the temperature and voltage of the battery. The discharge module is configured to discharge the battery if the state parameters meet preset discharge conditions; wherein the preset discharge conditions include: preset different control levels, the control levels including a mapping between temperature and voltage, and the temperature and voltage being negatively correlated in the preset different control levels; and is further configured to short-circuit the battery to discharge the battery if the temperature of the battery is greater than the minimum temperature in the preset different control levels, and the voltage of the battery is greater than the minimum voltage in the preset different control levels, and the duration is greater than a preset time threshold.

6. The apparatus according to claim 5, characterized in that, The discharge module is configured to discharge the battery if the battery temperature is greater than the temperature corresponding to the target control level and the battery voltage is greater than the voltage corresponding to the target control level; wherein the target control level is any one of the preset different control levels.

7. The apparatus according to claim 6, characterized in that, The device further includes: The stop module is configured to stop discharging the battery if, after discharge, the battery temperature is lower than the temperature corresponding to the target control level, and / or the battery voltage is lower than the voltage corresponding to the target control level.

8. The apparatus according to claim 5, characterized in that, The state parameters include the temperature within a preset time period, and the preset discharge conditions include a preset temperature. The discharge module is further configured to short-circuit the battery to discharge it if the battery temperature rises within a preset time period and the temperature after the rise is greater than the preset temperature.

9. A terminal, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to perform the battery management method as described in any one of claims 1 to 4.

10. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the battery management method as described in any one of claims 1 to 4.

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