WO2021190320A1 - Battery charging protection method and charging protection apparatus, mobile terminal, and storage medium - Google Patents

Abstract

A battery charging protection method and charging protection apparatus, a mobile terminal, and a storage medium. The method comprises: after a battery is fully charged for the first time during a charging process, stopping charging the battery, and carrying out repeated charging on the battery in a primary protection mode, wherein the electric quantity of the battery in the primary protection mode is greater than or equal to a first electric quantity; and when a trigger event for switching a protection mode is detected, carrying out repeated charging on the battery in a secondary protection mode, wherein the electric quantity of the battery in the secondary protection mode is less than or equal to a second electric quantity, and the second electric quantity is less than the first electric quantity. Therefore, battery protection can be realized on a mobile terminal that does not support charging path management, thereby preventing a battery life from being shortened due to battery degradation because a battery is in the state of being repeatedly charged when having a high electric quantity for a long time.

Description

Battery charging protection method, charging protection device, mobile terminal and storage medium

This application claims the priority of the Chinese patent application with application number 202010219482.5 filed at the Chinese Patent Office on March 25, 2020, the entire content of which is incorporated into this application by reference.

Technical field

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.

Background technique

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.

At present, in order to avoid prolonged charging to reduce 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. However, this way of protecting the battery must be supported by hardware.

technical problem

In view of this, 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.

Technical solutions

The first aspect of the embodiments of the present application provides a battery charging protection method, including:

When charging the battery, after the battery is fully charged for the first time in this charging process, stop charging the battery, and repeatedly charge the battery in the first-level protection mode, wherein the first-level The power of the battery in the protection mode is greater than or equal to the first power;

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. When 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. 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. In the first-level protection mode, the battery power is maintained above a relatively high first power level. After the switching condition is reached, 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.

It is understandable that, for the beneficial effects of the second aspect to the fifth aspect described above, reference may be made to the relevant description in the first aspect described above, and details are not repeated here.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only of the present application. For some embodiments, for those of ordinary skill in the art, other drawings may be obtained based on these drawings without creative labor.

FIG. 1 is a schematic diagram of the implementation process of a battery charging protection method provided by an embodiment of the present application;

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.

Embodiments of the present invention

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that this application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obstructing the description of this application.

It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the existence of the described features, wholes, steps, operations, elements and/or components, but does not exclude one or more other features , The existence or addition of a whole, a step, an operation, an element, a component, and/or a collection thereof.

It should also be understood that the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in the specification of this application and the appended claims, unless the context clearly indicates other circumstances, the singular forms "a", "an" and "the" are intended to include plural forms.

It should be further understood that the term "and/or" used in the specification and appended claims of this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations .

As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "once" or "in response to determination" or "in response to detection" depending on the context . Similarly, 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]".

In order to illustrate the technical solutions described in the present application, specific embodiments are used for description below.

In the embodiment of the application, the charging time is short and the timeout period is short. After the first full charge, the first-level protection mode will be activated. At this time, 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%). And record the number of recharge cycles or the start time of the first level protection mode. 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.

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. 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. After entering the secondary protection mode, the user can also be warned about charging for a long time through the UI interface.

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:

In 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.

In the embodiment of the present application, if a mobile terminal without charging path management is always plugged in, 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. In fact, 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. Therefore, it is necessary to control the number of battery recharges between 4.1V and 4.2V. If the user is accustomed to plugging in the charger for a long time, 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.

It should be noted that the 4.0V, 4.1V, 4.2V and 6000 times in the above examples are only examples of one type of battery, and do not mean that they represent all types of batteries in practical applications.

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.

In the embodiments of the present application, even if the battery life can be prolonged to a certain extent by reducing the first power amount, this high-potential recharge not only affects the battery life and performance, but also brings risks to the safety of the battery. Therefore, 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. As an example, if it is used The battery life of 3.7V-3.9V recharging cycle is 20000 times, then you can refer to these two voltage parameters to find the power value corresponding to these two voltage parameters to set the second power and the third power . Low-potential recharge greatly prolongs the life of the battery, and the safety of the battery is also higher.

As another embodiment of the present application, the trigger event for switching the protection mode includes:

In the primary protection mode, the time for recharging the battery is greater than the first time threshold.

In the embodiment of the present application, 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. For example, assuming that the number of recharge cycles of the battery at high potential is 6000 times, 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.

As another embodiment of the present application, after detecting a trigger event for switching the protection mode, the method further includes:

A warning message that the charging time is too long is issued.

In the embodiment of the present application, 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.

In the embodiment of the application, the battery is repeatedly charged by setting a two-level protection mode. In the first-level protection mode, the battery's power is kept above the relatively high first power level. After the switching condition is reached, 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:

In 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.

In the embodiment of the present application, in the process of cyclically executing step S202 and step S203, after the number of times of recharging the battery is greater than the second number threshold, the charging method for charging the battery is trickle charging. The second frequency threshold is less than the first frequency threshold during handover. Of course, if the switching condition is the time threshold, after the time for recharging the battery is greater than the second 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.

In the embodiment of the present application, the first count threshold can be set in the following manner:

By formula

Determining the maximum value of the first frequency threshold, and determining the first frequency threshold according to the maximum value of the first frequency threshold;

Wherein, 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, and t ₁ represents the expected service life of the battery, f ₁ represents the charging frequency of the battery.

Assuming that the battery has a battery life of 6000 times when it is repeatedly charged between the first power level and the full power level, the expected service life of the battery (or the time for the battery or the mobile terminal where the battery is located) is two years If the charging frequency of the battery is once a day at night, the maximum value of the first number threshold can be calculated by a formula: 6000/(365*2)=8.2, which is 8 times after rounding 8.2. Then the threshold of the first number of times can be set to 8 or a value less than 8.

Step S205: In the secondary protection mode, after the power of the battery drops to the third power, the battery is repeatedly charged.

In the embodiment of the present application, 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.

According to the embodiment of the present application, 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.

It should be understood that the size of the sequence number of each step in the foregoing embodiment does not mean the order of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the 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. 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.

As another embodiment of the present application, the primary protection unit is also used to cyclically execute:

After the power of the battery drops to the first power, repeatedly charging the battery;

Stop charging the battery after the battery is fully charged repeatedly;

As another embodiment of the present application, the trigger event for switching the protection mode includes:

In the first-level protection mode, the number of times of recharging the battery is greater than a first number threshold;

or,

In the primary protection mode, the time for recharging the battery is greater than the first time threshold.

As another embodiment of the present application, the first count threshold is determined in the following manner:

By formula

Determining the maximum value of the first frequency threshold, and determining the first frequency threshold according to the maximum value of the first frequency threshold;

Wherein, 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, and t ₁ represents the expected service life of the battery, f ₁ represents the charging frequency of the battery.

As another embodiment of the present application, 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:

After the power of the battery drops to the third power, repeatedly charging the battery;

Stop charging the battery after the power of the battery rises to the second power;

As another embodiment of the present application, 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.

As another embodiment of the present application, 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.

It should be noted that the information interaction and execution process between the above-mentioned devices/units are based on the same concept as the method embodiment of this application, and its specific functions and technical effects can be found in the method embodiment section. I won't repeat it here.

Those skilled in the art can clearly understand that for the convenience and conciseness of description, only the division of the above-mentioned functional units is used as an example. In actual applications, 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. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present application. For the specific working process of the units and modules in the above-mentioned device, reference may be made to the corresponding process in the foregoing method embodiment, which will not be repeated here.

Fig. 4 is a schematic block diagram of a mobile terminal provided by an embodiment of the present application. As shown in FIG. 4, 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. Alternatively, when 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.

Exemplarily, 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. For example, 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.

For other units or modules, reference may be made to the description in the embodiment shown in FIG. 3, which will not be repeated here.

The mobile terminal includes but is not limited to a processor 40 and a memory 41. Those skilled in the art can understand that 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.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail or recorded in an embodiment, reference may be made to related descriptions of other embodiments.

A person of ordinary skill in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed mobile terminal, device, and method may be implemented in other ways. For example, the mobile terminal embodiments described above are merely illustrative. For example, 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. In addition, 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.

In addition, 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.

If 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. Based on this understanding, 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.

Similarly, as a computer program product, when the computer program product runs on a mobile terminal, the steps in the foregoing method embodiments can be realized when the mobile terminal is executed.

Wherein, the computer program includes computer program code, and 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. It should be noted that 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. For example, in some jurisdictions, according to the legislation and patent practice, the computer-readable medium Does not include electrical carrier signals and telecommunication signals.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that it can still implement the foregoing The technical solutions recorded in the examples are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in Within the scope of protection of this application.

Claims (10)

1. A battery charging protection method, characterized in that it comprises:

   When charging the battery, after the battery is fully charged for the first time in this charging process, stop charging the battery, and repeatedly charge the battery in the first-level protection mode, wherein the first-level The power of the battery in the protection mode is greater than or equal to the first power;

   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.
2. The battery charging protection method according to claim 1, wherein said recharging the battery in the first-level protection mode comprises:

   Step A: After the power of the battery drops to the first power, the battery is repeatedly charged;

   Step B: Stop charging the battery after the battery is fully charged repeatedly;

   Step A and Step B are executed in a loop.
3. 3. The battery charging protection method of claim 2, wherein the triggering event for switching the protection mode comprises:

   In the first-level protection mode, the number of times of recharging the battery is greater than a first number threshold;

   or,

   In the primary protection mode, the time for recharging the battery is greater than the first time threshold.
4. 8. The battery charging protection method of claim 3, wherein the first number threshold is determined in the following manner:

   By formula

   

   Determining the maximum value of the first frequency threshold, and determining the first frequency threshold according to the maximum value of the first frequency threshold;

   Wherein, 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, and t ₁ represents the expected service life of the battery, f ₁ represents the charging frequency of the battery.
5. 8. The battery charging protection method of claim 1, wherein the battery power in the secondary protection mode is greater than or equal to the third power;

   Correspondingly, recharging the battery in the secondary protection mode includes:

   Step C: After the power of the battery drops to the third power, repeatedly charging the battery;

   Step D: After the power of the battery rises to the second power, stop charging the battery;

   Step C and Step D are executed in a loop.
6. The battery charging protection method according to any one of claims 1 to 5, characterized in that, after detecting a trigger event for switching the protection mode, the method further comprises:

   A warning message that the charging time is too long is issued.
7. The battery charging protection method according to any one of claims 3 to 5, wherein the triggering event for switching the protection mode comprises: when the number of times of recharging the battery is greater than a first number threshold, the After the number of times of recharging the battery in the first-level protection mode is 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.
8. A battery charging protection device, characterized in that it comprises:

   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.
9. A mobile terminal, comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program as claimed in claims 1 to 7 Steps of any of the methods.
10. A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, which when executed by one or more processors, implements the method according to any one of claims 1 to 7 A step of.

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