WO2021190320A1 - Procédé de protection de charge de batterie et appareil de protection de charge, terminal mobile et support de stockage - Google Patents

Procédé de protection de charge de batterie et appareil de protection de charge, terminal mobile et support de stockage Download PDF

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Publication number
WO2021190320A1
WO2021190320A1 PCT/CN2021/080263 CN2021080263W WO2021190320A1 WO 2021190320 A1 WO2021190320 A1 WO 2021190320A1 CN 2021080263 W CN2021080263 W CN 2021080263W WO 2021190320 A1 WO2021190320 A1 WO 2021190320A1
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WO
WIPO (PCT)
Prior art keywords
battery
charging
power
protection mode
protection
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PCT/CN2021/080263
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English (en)
Chinese (zh)
Inventor
杨成贺
晏伟丰
廖承荣
Original Assignee
深圳市百富智能新技术有限公司
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Publication of WO2021190320A1 publication Critical patent/WO2021190320A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
    • H02J7/0032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • This application belongs to the field of battery technology, and in particular relates to a battery charging protection method, a charging protection device, a mobile terminal, and a storage medium.
  • the battery is an indispensable device in the mobile terminal, and the battery of many mobile terminals cannot be replaced by the user. Therefore, the performance and life of the battery directly affect the service life of the mobile terminal. During the use of the mobile terminal, users often use the mobile terminal with the charger plugged in for a long time, which will greatly affect the performance and life of the battery.
  • the hardware can be configured such that the system power supply and battery charging are separated during charging, and the system power supply is directly supplied by the charger during charging without consuming battery power, thereby reducing The number of cycles of battery charging and discharging is increased, and the service life of the battery is prolonged.
  • this way of protecting the battery must be supported by hardware.
  • the embodiments of the present application provide a battery charging protection method, a charging protection device, a mobile terminal, and a computer-readable storage medium, which can protect the battery on a mobile terminal that does not support charging path management.
  • the first aspect of the embodiments of the present application provides a battery charging protection method, including:
  • the battery After detecting the trigger event of switching the protection mode, the battery is repeatedly charged in the secondary protection mode, wherein the power of the battery in the secondary protection mode is less than or equal to the second power, and the second power is less than The first amount of electricity.
  • a second aspect of the embodiments of the present application provides a battery charging protection device, including:
  • the first-level protection unit is used to stop charging the battery after the battery is fully charged for the first time in the current charging process when charging the battery, and to repeatedly charge the battery in the first-level protection mode , Wherein the power of the battery in the primary protection mode is greater than or equal to the first power;
  • the secondary protection unit is configured to recharge the battery in the secondary protection mode after detecting the triggering event of switching the protection mode, wherein the power of the battery in the secondary protection mode is less than or equal to the second power , The second power is less than the first power.
  • the third aspect of the embodiments of the present application provides a mobile terminal, including a memory, a processor, and a computer program stored in the memory and running on the processor.
  • the processor executes the computer program, The steps of the method provided in the first aspect of the embodiments of the present application are implemented.
  • the fourth aspect of the embodiments of the present application provides a computer-readable storage medium that stores a computer program, and when the computer program is executed by one or more processors, the first embodiment of the present application is implemented. The steps of the method provided in the aspect.
  • the fifth aspect of the embodiments of the present application provides a computer program product.
  • the computer program product includes a computer program.
  • the computer program When the computer program is executed by one or more processors, the computer program provided in the first aspect of the embodiments of the present application Method steps.
  • the embodiment of the present application provides a method to protect the battery charging process.
  • the battery is repeatedly charged by setting a two-level protection mode.
  • the first-level protection mode the battery power is maintained above a relatively high first power level.
  • the battery power is controlled under the relatively low second power level through the secondary protection mode; in this way, in a mobile terminal without charging path management, even if the charger is always plugged in for charging, the switching condition is reached. Later, the battery will switch from a high-potential charge-discharge cycle to a low-potential charge-discharge cycle, which reduces the number of cycles of high-potential charge and discharge of the battery and prolongs the service life of the battery.
  • FIG. 1 is a schematic diagram of the implementation process of a battery charging protection method provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of the implementation process of a battery charging protection method provided by another embodiment of the present application.
  • FIG. 3 is a schematic block diagram of a battery charging protection device provided by an embodiment of the present application.
  • Fig. 4 is a schematic block diagram of a mobile terminal provided by an embodiment of the present application.
  • the term “if” can be interpreted as “when” or “once” or “in response to determination” or “in response to detection” depending on the context .
  • the phrase “if determined” or “if detected [described condition or event]” can be interpreted as meaning “once determined” or “in response to determination” or “once detected [described condition or event]” depending on the context ]” or “in response to detection of [condition or event described]”.
  • the charging time is short and the timeout period is short.
  • the first-level protection mode will be activated.
  • the charging enable will be turned on and off, so that the battery capacity is at full charge and a level lower than full charge.
  • Cycle recharging between high power (first power) (such as cycling between 100% and 90%).
  • Each recharging cycle will have a duration range, such as 30-60 minutes, and the duration is related to the power consumption of the device.
  • the secondary protection mode In view of the charging time that exceeds the standard charging time, when the number of recharging cycles in the first level protection mode reaches the preset number of cycles N (or after the start time of the first level protection mode reaches a certain time), it is judged to be an ultra-long charging Start the secondary protection mode.
  • control the charging enable switch After the secondary protection mode is activated, control the charging enable switch to allow the power to perform a recharge cycle in the range of two lower power levels.
  • the setting of the upper and lower limits of power in the secondary protection mode depends on the safe power range of the battery and can be set according to the battery parameters.
  • the upper and lower limit power values of the secondary protection mode are generally less than the lowest value of the primary protection recharge capacity (the first power). Such as 60%-80% cycle.
  • FIG. 1 is a schematic diagram of the implementation process of a battery charging protection method provided by an embodiment of the present application. As shown in the figure, the method may include the following steps:
  • step S101 when the battery is charged, after the battery is fully charged for the first time in this charging process, stop charging the battery, and recharge the battery in the first-level protection mode.
  • the power of the battery in the first level protection mode is greater than or equal to the first power.
  • the system will continue to consume the battery power. After a part of the battery power is consumed, the battery will continue to be charged, so that the battery will be It has been in a high-potential charge-discharge cycle.
  • the number of times the battery is charged and discharged at high-potential is limited. For example, there is a life-span value when the battery is repeatedly charged between 4.1V-4.2V, for example, 4.1V-4.2V.
  • the lifetime value of battery recharging between V-4.2V is 6000 times. If this number of times is not limited, and the battery is often recharged at such a high potential, the battery life and sex consumption will be exhausted soon.
  • the lower limit of power that can be set corresponds to a lower voltage, such as 4.0V, and the power is recharged in cycles between 4.0V and 4.2V during recharging. It is equivalent to prolonging the time of one recharge. Assuming the same charging time, it is equivalent to reducing the number of recharges, which also extends the number of recharges of the battery, which is equivalent to extending the life of the battery.
  • the power value of the battery corresponding to the lower limit of the voltage during recharging can be referred to as the first power, so that the battery can be controlled to recharge cyclically between the first power and the full power.
  • Step S102 After detecting the trigger event of switching the protection mode, the battery is repeatedly charged in the secondary protection mode, wherein the power of the battery in the secondary protection mode is less than or equal to the second power, and the first power The second amount of electricity is less than the first amount of electricity.
  • the embodiment of the present application also sets a secondary protection mode.
  • a trigger event can be set. When a trigger event is detected, it switches to the secondary protection mode, and the battery is repeatedly charged in the secondary protection mode.
  • the selection of the critical value of the power in the secondary protection mode is also determined according to the life value of the battery recharge cycle times. Generally, the cycle life value of the low voltage interval will be much larger than that of the high voltage interval.
  • the trigger event for switching the protection mode includes:
  • the time for recharging the battery is greater than the first time threshold.
  • the first time threshold is set to control the recharging time of the battery in the first-level protection mode, thereby controlling the number of recharging cycles of the battery at a high potential, so as to extend the life of the battery.
  • the first time threshold may be set according to specific settings.
  • the time t for recharging the battery at high potential can be determined according to the performance of the mobile terminal and the battery, assuming that the user is recharged every day If the battery or mobile terminal has a life expectancy of 2 years after charging once, you can use t/(365*2) to get the maximum time allowed for high-potential charging per day, and the first time threshold can be set to the longest Time, the first time threshold can also be set to the shortest time.
  • the method further includes:
  • a warning message that the charging time is too long is issued.
  • the user when the trigger event for switching the protection mode is reached, the user can also be prompted to unplug the charger through a prompt message, and the user can be prompted through a voice prompt or a vibration prompt.
  • the battery is repeatedly charged by setting a two-level protection mode.
  • the first-level protection mode the battery's power is kept above the relatively high first power level.
  • the battery's power is reduced through the second-level protection mode.
  • the power is controlled under the relatively low second power; in this way, in a mobile terminal without charging path management, even if the charger is always plugged in for charging, after the switching condition is reached, the battery will switch from the high-potential charge-discharge cycle to In the low-potential charge and discharge cycle, the number of high-potential charge and discharge cycles of the battery is reduced, and the service life of the battery is prolonged.
  • FIG. 2 is a schematic diagram of the implementation process of a battery charging protection method provided by another embodiment of the present application. As shown in the figure, the method may include the following steps:
  • step S201 when the battery is charged, after the battery is fully charged for the first time in the current charging process, stop charging the battery and start the first-level protection mode.
  • Step S202 In the primary protection mode, after the power of the battery drops to the first power, the battery is repeatedly charged.
  • Step S203 In the first-level protection mode, after the battery is repeatedly fully charged, stop charging the battery.
  • Step S202 and step S203 are executed cyclically.
  • the charging method for charging the battery is trickle charging.
  • the second frequency threshold is less than the first frequency threshold during handover.
  • the switching condition is the time threshold
  • the charging method for charging the battery is trickle charging.
  • the second time threshold is less than the first time threshold at the time of handover.
  • the second time threshold is less than the first time threshold at the time of handover.
  • Step S204 In the first-level protection mode, when the number of times of recharging the battery is greater than the first number threshold, switch to the second-level protection mode.
  • the first count threshold can be set in the following manner:
  • N max represents the maximum value of the first number threshold
  • n 1 represents the number of times the battery is recharged between the first power and full power
  • t 1 represents the expected service life of the battery
  • f 1 represents the charging frequency of the battery.
  • Step S205 In the secondary protection mode, after the power of the battery drops to the third power, the battery is repeatedly charged.
  • the process of switching from the first protection mode to the second protection mode may be: when the number of times of recharging the battery is greater than the first number threshold, it can be performed at this time (the first number of times). Threshold +1 times) After the battery is fully charged to the full battery, even if it is switched to the secondary protection mode, the battery power will drop from the full power to the third power in the secondary protection mode, and the cycle process will be carried out; or When the number of times the battery is recharged is greater than the first number of thresholds, the battery can be fully charged to full capacity in this cycle (first number of thresholds + 1 time), and the battery's capacity drops from full to the second. , It is considered to switch to the secondary protection mode, and there is no restriction here.
  • Step S206 In the secondary protection mode, after the power of the battery rises to the second power, stop charging the battery.
  • Steps S205 and S206 are executed cyclically.
  • the charging method for charging the battery in the secondary protection mode is constant current charging.
  • the maximum number of cycles of recharging in the first protection mode can be calculated based on the number of times the battery is recharged between the first power level and the full power level, the expected service life and the charging frequency, so that Reasonably set the recharge times of the battery in the first-level protection mode to extend the life of the battery.
  • FIG. 3 is a schematic block diagram of a battery charging protection device provided by an embodiment of the present application. For ease of description, only parts related to the embodiment of the present application are shown.
  • the battery charging protection device 3 can be a software unit, a hardware unit, or a combination of software and hardware built into mobile terminals such as mobile phones, tablet computers, notebooks, computers, etc., or can be integrated into the mobile phones, tablet computers, and mobile phones as independent pendants. In mobile terminals such as notebooks and computers, they can also exist as independent terminal devices.
  • the battery charging protection device 3 includes:
  • the first-level protection unit 31 is used to stop charging the battery after the battery is fully charged for the first time in the current charging process, and repeat the battery in the first-level protection mode Charging, wherein the power of the battery in the first-level protection mode is greater than or equal to the first power;
  • the secondary protection unit 32 is configured to recharge the battery in the secondary protection mode after detecting the trigger event of switching the protection mode, wherein the battery power in the secondary protection mode is less than or equal to the second Electricity, the second electric power is less than the first electric power.
  • the primary protection unit is also used to cyclically execute:
  • the trigger event for switching the protection mode includes:
  • the number of times of recharging the battery is greater than a first number threshold
  • the time for recharging the battery is greater than the first time threshold.
  • the first count threshold is determined in the following manner:
  • N max represents the maximum value of the first number threshold
  • n 1 represents the number of times the battery is recharged between the first power and full power
  • t 1 represents the expected service life of the battery
  • f 1 represents the charging frequency of the battery.
  • the power level of the battery in the secondary protection mode is greater than or equal to the third power level
  • the secondary protection unit is also used to cyclically execute:
  • the battery charging protection device further includes:
  • the prompt unit 33 is configured to send a prompt message that the charging time is too long after detecting a trigger event for switching the protection mode.
  • the triggering event for switching the protection mode includes: when the number of times the battery is repeatedly charged is greater than a first number threshold, the number of times the battery is repeatedly charged in the first-level protection mode After being greater than the second number threshold, the charging method for charging the battery is trickle charging, wherein the second number threshold is less than the first number threshold;
  • the charging method for charging the battery in the secondary protection mode is constant current charging.
  • the above-mentioned functions can be allocated by different functional units and modules as required. That is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above.
  • the functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist alone physically, or two or more units can be integrated into one unit.
  • the above-mentioned integrated units can be hardware-based Formal realization can also be realized in the form of a software functional unit.
  • Fig. 4 is a schematic block diagram of a mobile terminal provided by an embodiment of the present application.
  • the mobile terminal 4 of this embodiment includes: one or more processors 40, a memory 41, and a computer program 42 stored in the memory 41 and running on the processor 40.
  • the processor 40 implements the steps in the foregoing method embodiments when the computer program 42 is executed, for example, steps S101 to S102 shown in FIG. 1.
  • the processor 40 executes the computer program 42, the functions of the modules/units in the foregoing device embodiments, such as the functions of the modules 31 to 32 shown in FIG. 3, are realized.
  • the computer program 42 may be divided into one or more modules/units, and the one or more modules/units are stored in the memory 41 and executed by the processor 40 to complete This application.
  • the one or more modules/units may be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program 42 in the mobile terminal 4.
  • the computer program 42 may be divided into a primary protection unit and a secondary protection unit, for example:
  • the first-level protection unit is used to stop charging the battery after the battery is fully charged for the first time in the current charging process when charging the battery, and to repeatedly charge the battery in the first-level protection mode , Wherein the power of the battery in the primary protection mode is greater than or equal to the first power;
  • the secondary protection unit is configured to recharge the battery in the secondary protection mode after detecting the triggering event of switching the protection mode, wherein the power of the battery in the secondary protection mode is less than or equal to the second power , The second power is less than the first power.
  • the mobile terminal includes but is not limited to a processor 40 and a memory 41.
  • FIG. 4 is only an example of the mobile terminal 4, and does not constitute a limitation on the mobile terminal 4. It may include more or less components than those shown in the figure, or a combination of certain components, or different components. Components, for example, the mobile terminal 4 may also include an input device, an output device, a network access device, a bus, and the like.
  • the processor 40 may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (ASIC), Ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory 41 may be an internal storage unit of the mobile terminal 4, such as a hard disk or a memory of the mobile terminal 4.
  • the memory 41 may also be an external storage device of the mobile terminal 4, such as a plug-in hard disk equipped on the mobile terminal 4, a smart memory card (Smart Media Card, SMC), and a Secure Digital (SD) Card, Flash Card, etc. Further, the memory 41 may also include both an internal storage unit of the mobile terminal 4 and an external storage device.
  • the memory 41 is used to store the computer program and other programs and data required by the mobile terminal 4.
  • the memory 41 can also be used to temporarily store data that has been output or will be output.
  • the disclosed mobile terminal, device, and method may be implemented in other ways.
  • the mobile terminal embodiments described above are merely illustrative.
  • the division of the modules or units is only a logical function division. In actual implementation, there may be other divisions, such as multiple units or components. It can be combined or integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the present application implements all or part of the processes in the above-mentioned embodiments and methods, and can also be completed by instructing relevant hardware through a computer program.
  • the computer program can be stored in a computer-readable storage medium. When the program is executed by one or more processors, it can implement the steps of the foregoing method embodiments.
  • the computer program includes computer program code
  • the computer program code may be in the form of source code, object code, executable file, or some intermediate forms.
  • the computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory) , Random Access Memory (RAM, Random Access Memory), electrical carrier signal, telecommunications signal, and software distribution media, etc.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • electrical carrier signal telecommunications signal
  • software distribution media etc.
  • the content contained in the computer-readable medium can be appropriately added or deleted according to the requirements of the legislation and patent practice in the jurisdiction.
  • the computer-readable medium Does not include electrical carrier signals and telecommunication signals.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

Un procédé de protection de charge de batterie et un appareil de protection de charge, un terminal mobile et un support de stockage. Le procédé consiste : après charge complète d'une batterie pour la première fois pendant un processus de charge, à arrêter sa charge pour effectuer une charge répétée en mode de protection primaire, la quantité d'électricité de la batterie en mode de protection primaire étant supérieure ou égale à une première quantité d'électricité ; et lorsqu'un événement de déclenchement de commutation en mode de protection est détecté, à réaliser une charge répétée sur la batterie en mode de protection secondaire, la quantité d'électricité de la batterie en mode de protection secondaire étant inférieure ou égale à une seconde quantité d'électricité et la seconde quantité d'électricité étant inférieure à la première quantité d'électricité. La protection de batterie est donc possible sur un terminal mobile ne prenant pas en charge la gestion de chemins de charge, ce qui permet de prévenir la réduction de durée de vie d'une batterie due à sa dégradation quand elle est en état de charge répétée après avoir longtemps contenu une grande quantité d'électricité.
PCT/CN2021/080263 2020-03-25 2021-03-11 Procédé de protection de charge de batterie et appareil de protection de charge, terminal mobile et support de stockage WO2021190320A1 (fr)

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CN111431226A (zh) * 2020-03-25 2020-07-17 深圳市百富智能新技术有限公司 电池充电保护方法、充电保护装置、移动终端及存储介质
CN116325417B (zh) * 2021-02-10 2024-06-21 铅锂智行(北京)科技有限公司 一种充电器及其充电方法
CN113179456B (zh) * 2021-03-09 2022-05-27 杭州电子科技大学 基于多节点可调功率充电模型的安全充电延迟最小化方法
CN113725937B (zh) * 2021-04-15 2022-07-22 荣耀终端有限公司 一种电池充电方法及电子设备
CN113809835A (zh) * 2021-08-11 2021-12-17 荣耀终端有限公司 无线充电方法、设备、芯片、系统及计算机可读存储介质
CN113839438B (zh) * 2021-08-19 2022-10-04 北京荣耀终端有限公司 一种电池复充保护方法及电子设备
TWI825691B (zh) * 2022-04-26 2023-12-11 正崴精密工業股份有限公司 低電壓保護方法

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