Battery charging method, device, equipment, medium and product

Abstract

The invention discloses a battery charging method, device and equipment, a medium and a product, and belongs to the technical field of batteries. The battery charging method is applied to the electronic equipment, the electronic equipment comprises a battery, and the battery charging method comprises the steps that a first state parameter and a second state parameter of the battery are acquired, the first state parameter is used for representing the aging degree of the battery at the beginning of charging of the same time, and the second state parameter is used for representing the aging degree of the battery; the second state parameter is used for representing the aging degree of the battery when the same charging is cut off; determining a target voltage drop threshold value of the battery according to the first state parameter and the second state parameter; and charging the battery under the condition that the voltage drop value of the battery after the same charging is cut off is greater than or equal to a target voltage drop threshold value.

Description

Technical Field

[0001] The present application belongs to the field of battery technology, and specifically relates to a battery charging method, device, equipment, medium and product. Background Art

[0002] With the development of communication technology, electronic devices such as mobile phones and tablet computers have become indispensable equipment in people's daily life and work. In some user groups, electronic devices need to be used for a long time at work or in life. In order to keep the power sufficient or not to interrupt the use, these users usually use electronic devices with the charger connected for a long time. After the battery is fully charged, the charging stops, but continuous use will reduce the battery power and voltage. When the voltage drops to a certain level, the charger will charge the battery repeatedly.

[0003] The relevant technology mainly determines whether the battery needs to be recharged by judging whether the battery's drop voltage reaches the drop threshold. For example, when the battery's drop voltage is greater than the drop threshold, the battery is recharged. As the battery ages, the internal resistance of the battery increases, causing the battery to be recharged in a very short time after being fully charged. Repeated charging can easily make the chemical reaction inside the battery more intense, which in turn causes changes in the electrode structure inside the battery, reduced capacity, reduced charge and discharge performance, shortened battery life, and even internal battery expansion, which can cause fires. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a battery charging method, device, equipment, medium and product, which can solve the technical problem of frequent recharging of batteries in a short period of time in the related art.

[0005] In a first aspect, an embodiment of the present application provides a battery charging method, which is applied to an electronic device, the electronic device including a battery, and the method includes:

[0006] Acquire a first state parameter and a second state parameter of the battery, wherein the first state parameter is used to characterize the aging degree of the battery at the beginning of the same charging, and the second state parameter is used to characterize the aging degree of the battery at the end of the same charging;

[0007] Determining a target voltage drop threshold of the battery according to the first state parameter and the second state parameter;

[0008] When the voltage drop value of the battery after the same charging is terminated is greater than or equal to the target voltage drop threshold, the battery is charged.

[0009] In a second aspect, an embodiment of the present application provides a battery charging device, which is applied to an electronic device, the electronic device including a battery, and the device includes:

[0010] an acquisition module, used to acquire a first state parameter and a second state parameter of the battery, the first state parameter being used to characterize the aging degree of the battery at the beginning of the same charging, and the second state parameter being used to characterize the aging degree of the battery at the end of the same charging;

[0011] A determination module, configured to determine a target voltage drop threshold of the battery according to the first state parameter and the second state parameter;

[0012] The charging module is used to charge the battery when the voltage drop value of the battery after the same charging is terminated is greater than or equal to the target voltage drop threshold.

[0013] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0014] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0015] In a fifth aspect, an embodiment of the present application provides a chip, the chip including a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect.

[0016] In a sixth aspect, an embodiment of the present application provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect.

[0017] In an embodiment of the present application, a first state parameter and a second state parameter of the battery are obtained, the first state parameter is used to characterize the degree of aging of the battery at the beginning of the same charge, and the second state parameter is used to characterize the degree of aging of the battery at the end of the same charge; the target voltage drop threshold of the battery is determined according to the first state parameter and the second state parameter; the battery is charged when the voltage drop value of the battery after the end of the same charge is greater than or equal to the target voltage drop threshold. That is, the embodiment of the present application can dynamically determine the voltage drop threshold of the battery according to the state parameters of the battery at the beginning and end of the same charge. Because the corresponding state parameters will be different for different degrees of battery aging, the embodiment of the present application dynamically determines the voltage drop threshold according to different state parameters of the battery, fully considering the influence of battery aging on the state parameters, so as to avoid the problem of frequent recharging of aging batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A schematic diagram of a simplified model of a battery provided for related art;

[0019] Figure 2 A schematic diagram of a battery recharging method provided for related technology;

[0020] Figure 3 Another schematic diagram of battery recharging provided in the related art;

[0021] Figure 4 A flowchart of a battery charging method provided in an embodiment of the present application;

[0022] Figure 5 A flowchart of another battery charging method provided in an embodiment of the present application;

[0023] Figure 6 A flowchart of another battery charging method provided in an embodiment of the present application;

[0024] Figure 7 A schematic diagram of a battery charging process provided in an embodiment of the present application;

[0025] Figure 8 A schematic diagram of the structure of a battery charging device provided in an embodiment of the present application;

[0026] Fig. 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0027] Fig.10 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0029] The terms "first", "second", etc. in the specification of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually a class, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0030] The batteries in current electronic devices can be simplified as follows Figure 1 The simplified battery model consists of an ideal voltage source Vcell and a battery internal resistance R0. The battery and the electronic device are connected through a battery protection board and a board-to-board connector (BTB) ( Figure 1 The battery protection board is not shown and is connected to the BTB. The BTB also has an internal resistance R BTB The battery internal resistance R0 is generally between tens of milliohms and hundreds of milliohms depending on the degree of aging. BTB Generally, it is 10 milliohms. The battery protection board and BTB are the interfaces of the battery, and they also limit the battery charge and discharge current and protect the battery. The electronic device obtains the actual voltage Vbat from the BTB. The electronic device determines whether the battery has reached the full charge threshold Vmax, that is, whether Vbat is equal to Vmax.

[0031] From the above model we can get:

[0032] When charging the battery

[0033] V bat =V cell +I cg *(R0+R BTB )

[0034] When the battery is discharged

[0035] V bat =V cell -I dcg *(R0+R BTB )

[0036] Among them, I cg is the charging current, I dcg is the discharge current. Since the charging current is generally large, V bat At the moment of charging stop, there will be a pressure difference:

[0037] V drop =(I cg +I dcg )*(R0+R BTB )

[0038] At this time, the standby discharge current is very small, generally only at the milliampere level, so V drop It can be approximated as the voltage drop I of the charging current on the two internal resistors. cg *(R0+R BTB ),Right now

[0039] Currently, a fixed voltage drop threshold Vfalling is mainly set for the battery, and charging is started again after the battery voltage Vbat ≤ Vmax – Vfalling.

[0040] When the battery is relatively new, the internal resistance is small, Vdrop is small, and Vfalling is much larger than Vdrop. As the battery ages due to the number of cycles, the internal resistance R0 gradually increases, and Vdrop becomes larger and gradually approaches the fixed Vfalling, causing the electronic device to restart charging just after it is determined to be fully charged.

[0041] like Figure 2 As shown, according to the above scheme, the fixed voltage drop threshold Vfalling is used as the basis for judging whether to start charging again, which will make the aged battery very easy and fast to recharge after being fully charged. Repeated charging can easily make the chemical reaction inside the battery more intense, resulting in changes in the electrode structure inside the battery, reduced capacity, reduced charge and discharge performance, shortened battery life, and even internal expansion of the battery, which can cause a fire.

[0042] In order to solve the above problems, the solution of the related art is as follows Figure 3 As shown, after detecting that the battery has been charged repeatedly for a certain number of times, the charging capacity is forcibly reduced to a non-full charge value (such as 80%) to avoid the harm caused by high-voltage recharging of the battery. However, there is still a problem. If the user temporarily needs to leave the charging range, it is easy to cause the electronic device to be not fully charged, affecting the user's subsequent use.

[0043] To this end, the embodiments of the present application provide a battery charging method, device, equipment, medium and product, which can solve the technical problem of frequent recharging of batteries in a short period of time in the related art without reducing the charging capacity of the battery, thereby avoiding the situation where the user's electronic device is connected to the charger for a long time without being fully charged.

[0044] The battery charging method provided in the embodiment of the present application can be applied to electronic devices that use batteries and can be repeatedly charged and discharged, including but not limited to watches, tablet computers, mobile phones, notebook computers, and personal computers (PCs).

[0045] The embodiment of the present application can be applied to the application scenario where the electronic device is connected to the charger for a long time. The battery charging method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0046] Figure 4 A flowchart of a battery charging method provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, the battery charging method may include the following steps:

[0047] S410: Acquire a first state parameter and a second state parameter of a battery.

[0048] The first state parameter is used to characterize the aging degree of the battery at the beginning of charging of the same charging, and the second state parameter is used to characterize the aging degree of the battery at the end of charging of the same charging.

[0049] S420: Determine a target voltage drop threshold of the battery according to the first state parameter and the second state parameter.

[0050] S430: When the voltage drop value of the battery after the same charging is terminated is greater than or equal to the target voltage drop threshold, charge the battery.

[0051] In an embodiment of the present application, a first state parameter and a second state parameter of the battery are obtained, the first state parameter is used to characterize the degree of aging of the battery at the beginning of the same charge, and the second state parameter is used to characterize the degree of aging of the battery at the end of the same charge; the target voltage drop threshold of the battery is determined according to the first state parameter and the second state parameter; the battery is charged when the voltage drop value of the battery after the end of the same charge is greater than or equal to the target voltage drop threshold. That is, the embodiment of the present application can dynamically determine the voltage drop threshold of the battery according to the state parameters of the battery at the beginning and end of the same charge. Because the corresponding state parameters will be different for different degrees of battery aging, the embodiment of the present application dynamically determines the voltage drop threshold according to different state parameters of the battery, fully considering the influence of battery aging on the state parameters, so as to avoid the problem of frequent recharging of aging batteries.

[0052] The above steps are described in detail below:

[0053] In S410, the first state parameter and the second state parameter are state parameters of the battery at different stages during the same charging process, and are respectively used to characterize the aging degree of the battery at the corresponding stage.

[0054] For example, the first state parameter may be used to characterize the aging degree of the battery at the beginning of the same charging, and the second state parameter may be used to characterize the aging degree of the battery at the end of the same charging.

[0055] Taking the state parameters of the battery at the beginning and end of this charging as an example, illustratively, the first state parameter may include but is not limited to the first environmental state parameter and the first battery impedance, and the second state parameter may include but is not limited to the second environmental state parameter and the second battery impedance.

[0056] The first environmental state parameter is the environmental state parameter of the battery at the beginning of charging, for example, it may include the battery temperature at the beginning of charging, and the second environmental state parameter is the environmental state parameter of the battery at the end of charging, for example, it may include the battery temperature at the end of charging.

[0057] The first battery impedance may be the sum of the actual internal resistance of the battery at the beginning of charging and the internal resistance of the board-to-board connector. Similarly, the second battery impedance may be the sum of the actual internal resistance of the battery at the end of charging and the internal resistance of the board-to-board connector.

[0058] The embodiments of the present application do not limit the specific acquisition process of the environmental state parameters and the battery impedance. For example, the battery temperature at the start and end of charging can be measured by a temperature sensor to obtain the first environmental state parameter and the second environmental state parameter. The internal resistance of the battery and the internal resistance of the board-to-board connector are measured by static excitation, large load cutoff, etc. to obtain the first battery impedance and the second battery impedance, and then the first state parameter and the second state parameter are obtained, which provides a basis for the subsequent determination of the voltage drop threshold. For example, when the electronic device is unplugged from the charger, the battery impedance can be calculated using the ratio of the transient voltage to the current.

[0059] In S420, the target voltage drop threshold is used to determine whether the battery needs to be charged. For example, when the battery drop voltage is greater than or equal to the target voltage drop threshold, the battery is charged. That is, when the actual battery voltage V bat ≤V max -V ′ falling When the charger is controlled to charge the battery, V max is the full charge voltage, V ′ falling is the target voltage drop threshold.

[0060] Because the target voltage drop threshold is dynamically determined based on the state parameters of the battery at different stages, and the state parameters of the battery at different stages can characterize the aging degree of the battery at different stages, that is, the embodiment of the present application can dynamically determine the voltage drop threshold based on the aging degree of the battery. In this way, frequent recharging of the battery in a short period of time can be avoided. Moreover, the embodiment of the present application only needs to adjust the voltage drop threshold, and there is no need to reduce the charging capacity of the battery according to the number of recharging times, thereby avoiding the situation where the battery is connected to the charger for a long time but is not fully charged during use.

[0061] In S430, taking the current charging as an example, after the current charging is terminated, when the voltage drop value of the battery is greater than or equal to the target voltage drop threshold, the electronic device can control the charger to continue charging the battery.

[0062] As the battery ages, the target voltage drop threshold will continue to increase, thus avoiding the situation where the battery needs to be frequently recharged in a short period of time.

[0063] Figure 5 A flowchart of another battery charging method provided in an embodiment of the present application, Figure 5 and Figure 4 The difference is that Figure 4 The S420 in can be refined into Figure 5 S510-S530 in.

[0064] S510: Determine the time interval between the end time of a previous charging and the start time of a next charging in two adjacent charging processes.

[0065] This time interval is the recharging time interval of the battery. Taking this charging as an example, illustratively, the electronic device can obtain the time when the previous charging of the battery was terminated and the time when this charging started by searching the log. The recharging time interval of this recharging can be obtained based on the difference between the two times, which provides an accurate basis for the subsequent determination of the target state parameters.

[0066] S520: Determine a target state parameter from the first state parameter and the second state parameter according to the time interval.

[0067] Different recharging time intervals indicate different environments where the electronic device is located. For example, when the time interval is greater than or equal to the interval threshold, it indicates that the electronic device has entered a better environment from a bad environment. When the time interval is less than the interval threshold, it indicates that the electronic device has entered a bad environment from a better environment or the user is charging while using the electronic device. The state parameters of the battery are different in different environments. According to the time interval of this recharging, the target state parameter corresponding to the environment where the electronic device is located is determined from the first state parameter and the second state parameter, so that the target voltage drop threshold can be determined more accurately.

[0068] The bad environment may be a high temperature environment or a low temperature environment, and the good environment may be a normal temperature environment. In some embodiments, the high temperature environment may be an environment with a temperature greater than 35°C, the low temperature environment may be an environment with a temperature less than 18°C, and the normal temperature environment may be an environment with a temperature of about 25°C. In actual application, the high temperature environment and the low temperature environment may be determined comprehensively according to the performance of the battery.

[0069] In some embodiments, when the time interval is greater than or equal to the interval threshold, the second state parameter is determined as the target state parameter;

[0070] When the time interval is less than the interval threshold, the parameter with the larger value between the first state parameter and the second state parameter is determined as the target state parameter.

[0071] Exemplarily, the interval threshold may be determined by a user according to the performance of the battery, and different batteries may correspond to different interval thresholds.

[0072] Exemplarily, the interval threshold may also be determined comprehensively based on the recharging time intervals of batteries of the same type, for example, averaging the recharging time intervals of multiple batteries of the same type within a preset time period, and determining the interval threshold based on the average value.

[0073] Exemplarily, the interval threshold may also be the time interval of the last recharge. Still taking this charging as an example, the time interval of this recharge is the difference between the start time of this charging and the end time of the last charging, and the time interval of the last recharge is the difference between the start time of the last charging and the end time of the last charging. That is, the embodiment of the present application can dynamically determine the target state parameter according to the size relationship between the time intervals of two adjacent recharges, thereby improving the accuracy of the target state parameter.

[0074] Exemplarily, when the time interval is greater than or equal to the interval threshold, it indicates that the electronic device has entered a better environment from a harsh environment. At this time, the state parameter corresponding to when charging is terminated, that is, the second state parameter, can be determined as the target state parameter.

[0075] Exemplarily, when the time interval is less than the time interval, it means that the electronic device has entered a harsh environment from a better environment or the user is charging while using the device. At this time, the state parameter at the end of charging and the state parameter at the start of charging with a larger parameter value can be determined as the target state parameter. For example, if the parameter value of the first state parameter is greater than the second state parameter value, the first state parameter value is determined as the target state parameter. If the parameter value of the first state parameter is less than the second state parameter value, the second state parameter value is determined as the target state parameter. If the parameter value of the first state parameter is equal to the second state parameter value, the first state parameter value or the second state parameter is determined as the target state parameter.

[0076] The embodiment of the present application can dynamically determine the target state parameters according to the size of the recharging time interval, and use the target state parameters for the subsequent calculation of the target voltage drop threshold, thereby improving the accuracy of the target voltage drop threshold, and can effectively avoid frequent recharging of the battery in a short period of time, thereby protecting the battery.

[0077] S530: Compensate the first voltage drop threshold value according to the charging cutoff current and the target state parameter at the time of charging cutoff of the same charging, and determine the compensated first voltage drop threshold value as the target voltage drop threshold value.

[0078] Among them, the first voltage drop threshold is the voltage drop threshold corresponding to the previous charge of the battery. Exemplarily, when the battery is being recharged for the first time, the first voltage drop threshold may be the initial voltage drop threshold, and the initial voltage drop threshold may be dynamically adjusted according to the degree of aging of the battery, as the voltage drop threshold corresponding to each subsequent recharge. When the battery is being recharged for the Nth time, N is an integer greater than 1, and the first voltage drop threshold may be the voltage drop threshold corresponding to the previous recharge, that is, the embodiment of the present application may dynamically adjust the voltage drop threshold corresponding to the previous recharge according to the degree of aging of the battery, so that when the battery is aged, it will not be repeatedly charged in a short time, which is beneficial to the health of the battery and is not easy to trigger a battery accident.

[0079] Exemplarily, the electronic device may input the charging cut-off current, the target state parameter and the first voltage drop threshold into a voltage compensation model to obtain the compensated first voltage drop threshold, that is, the target voltage drop threshold.

[0080] Exemplarily, the electronic device may also determine a compensation value of the first voltage drop threshold value according to the charging cutoff current and the target state parameter when charging is cut off, and then compensate the first voltage drop value according to the compensation value to obtain the target voltage drop threshold value.

[0081] The target voltage drop threshold may be greater than the first voltage drop threshold, or may be less than the first voltage drop threshold.

[0082] The embodiment of the present application can dynamically determine the target state parameters of the battery according to the recharging time interval of the battery, and then dynamically compensate for the voltage drop threshold corresponding to the previous recharging according to the target state parameters and the charging cut-off current, so as to more accurately determine the voltage drop threshold corresponding to the next recharging, thereby avoiding the battery from being recharged within a short time after the charging is cut off.

[0083] Taking the target state parameter including the target environmental state parameter and the target battery impedance as an example, illustratively, the first voltage drop threshold may be compensated in the following manner:

[0084] Acquire a first full charge voltage of the battery under target environmental state parameters and a second full charge voltage of the battery at a reference temperature;

[0085] Determining a voltage drop threshold compensation value according to a difference between the first full charge voltage and the second full charge voltage, as well as a charge cutoff current and a target battery impedance;

[0086] A compensated first voltage drop threshold is determined according to the first voltage drop threshold and the voltage drop threshold compensation value.

[0087] Exemplarily, when the first state parameter includes a first environmental state parameter and a first battery impedance, and the second state parameter includes a second environmental state parameter and a second battery impedance, the target state parameter may include a target environmental state parameter and a target battery impedance, and the target environmental state parameter and the target battery impedance belong to the first state parameter or the second state parameter.

[0088] The full charge voltage of the battery under different environmental state parameters is different, which is specifically related to parameters such as the battery performance. The electronic device can store the full charge voltage of the battery under different environmental state parameters. The first full charge voltage is the full charge voltage of the battery under the target environmental state parameters. The second full charge voltage is the full charge voltage of the battery at a reference temperature, and the reference temperature can be, for example, 25°C.

[0089] According to the first full charge voltage, the second full charge voltage, the charge cut-off current and the target battery impedance, the voltage drop threshold compensation value can be determined. cg *R n +V tn , where ΔV is the voltage drop threshold compensation value, R n is the target battery impedance, I cg is the charging cut-off current when charging is cut off, V tn is the difference between the second full charge voltage and the first full charge voltage, that is, V tn =V tm -V lim , V tm is the second full charge voltage, V lim It is the first full charge voltage.

[0090] According to the first voltage drop threshold and the voltage drop threshold compensation value, the compensated first voltage drop threshold can be determined. ′ falling =V falling0 +ΔV, where V falling0 is the first voltage drop threshold.

[0091] The present embodiment dynamically compensates for the first voltage drop threshold based on the target battery impedance and the target battery temperature, combined with the full charge voltage of the battery at room temperature and the target battery temperature, thereby avoiding the problem of the battery not being fully charged due to temporary behavior of the user, improving the user experience, and fully utilizing the maximum available capacity of the battery while protecting the battery.

[0092] Figure 6 A flowchart of another battery charging method provided in an embodiment of the present application, Figure 6 and Figure 5 The difference is that Figure 6 S520 may be followed by S610 - S620 .

[0093] S610: Obtain the discharge current of the battery after the same charging is terminated.

[0094] Still taking this charging as an example, when an electronic device is used while charging, it is easy to cause the battery discharge current to be relatively large. In order to avoid the battery voltage dropping rapidly after charging stops and exceeding the corresponding voltage drop threshold, resulting in repeated charging of the battery, and the battery is always in a high voltage (full charge) state for discharge and use, affecting the battery life, the embodiment of the present application can combine the charging current and the discharging current to jointly determine the target voltage drop threshold.

[0095] S620: Compensate the first voltage drop threshold according to the charge cut-off current, the discharge current and the target state parameter, and determine the compensated first voltage drop threshold as the target voltage drop threshold.

[0096] Exemplarily, the cumulative sum of the charge cut-off current and the discharge current may be determined, and the first voltage drop threshold may be compensated according to the cumulative sum and the target state parameter to obtain the target voltage drop threshold.

[0097] For example, V ′ falling =V falling0 +(I cg +I dcg )*R n +V tn .

[0098] That is, when the electronic device is charged and used at the same time, the target voltage drop threshold can be further increased, and the voltage threshold for triggering recharging can be further reduced, so that the battery can maintain a relatively low capacity when the user is charging and using it, further protecting the battery health. ′ falling The battery will decrease rapidly, thus increasing the recharge threshold voltage to re-trigger charging. Due to the follow-up compensation mechanism, there is less free capacity above, and the full charge state can be restored quickly without affecting the user experience.

[0099] Taking this charging as an example, the following Figure 7 The battery charging process provided in the embodiment of the present application is described.

[0100] S710: When the current charging starts, the battery impedance and battery temperature are recorded.

[0101] S720: When the current charging is terminated, the battery impedance and battery temperature are recorded again.

[0102] S730: Is the time interval between the current charging start time and the previous charging end time greater than the interval threshold T? If so, execute S740; if not, execute S750.

[0103] S740: Perform voltage drop threshold compensation using the battery impedance and battery temperature when charging is terminated to obtain a target voltage drop threshold.

[0104] S750: Perform voltage drop threshold compensation using the larger battery impedance at the start of charging and the end of charging and the battery temperature corresponding to the larger battery impedance to obtain a target voltage drop threshold.

[0105] S760, determining whether the voltage drop threshold of the battery at the time of charging termination is greater than or equal to the target voltage drop threshold, if so, executing S770, if not, returning to executing S760.

[0106] S770. Charge the battery.

[0107] The embodiments of the present application can dynamically determine the voltage drop threshold according to the degree of battery aging, so that the battery will not be frequently recharged in a short period of time. Moreover, when the user uses the electronic device while charging, the battery can maintain a relatively low capacity, which is beneficial to the health of the battery and is not prone to triggering battery accidents.

[0108] It should be noted that the battery charging method provided in the embodiment of the present application can be executed by a battery charging device or a processing module in the battery charging device for executing the battery charging method. In the embodiment of the present application, the battery charging device provided in the embodiment of the present application is described by taking the battery charging device executing the battery charging method as an example.

[0109] Figure 8 A schematic diagram of the structure of a battery charging device provided in an embodiment of the present application.

[0110] like Figure 8 As shown, the battery charging device 800 may include:

[0111] An acquisition module 801 is used to acquire a first state parameter and a second state parameter of a battery, wherein the first state parameter is used to characterize the aging degree of the battery at the beginning of the same charging, and the second state parameter is used to characterize the aging degree of the battery at the end of the same charging;

[0112] A determination module 802, configured to determine a target voltage drop threshold of the battery according to the first state parameter and the second state parameter;

[0113] The charging module 803 is used to charge the battery when the voltage drop value of the battery after the same charging is terminated is greater than or equal to the target voltage drop threshold.

[0114] In an embodiment of the present application, a first state parameter and a second state parameter of the battery are obtained, the first state parameter is used to characterize the degree of aging of the battery at the beginning of the same charge, and the second state parameter is used to characterize the degree of aging of the battery at the end of the same charge; the target voltage drop threshold of the battery is determined according to the first state parameter and the second state parameter; the battery is charged when the voltage drop value of the battery after the end of the same charge is greater than or equal to the target voltage drop threshold. That is, the embodiment of the present application can dynamically determine the voltage drop threshold of the battery according to the state parameters of the battery at the beginning and end of the same charge. Because the corresponding state parameters will be different for different degrees of battery aging, the embodiment of the present application dynamically determines the voltage drop threshold according to different state parameters of the battery, fully considering the influence of battery aging on the state parameters, so as to avoid the problem of frequent recharging of aging batteries.

[0115] In some possible implementations of the embodiments of the present application, the determination module 802 is specifically configured to:

[0116] Determine the time interval between the end time of the previous charging and the start time of the next charging in two adjacent charging processes;

[0117] determining a target state parameter from the first state parameter and the second state parameter according to the time interval;

[0118] The battery charging device 800 may further include:

[0119] A compensation module, used for compensating the first voltage drop threshold value according to the charging cut-off current and the target state parameter at the charging cut-off of the same charging;

[0120] The determination module 802 is specifically configured to:

[0121] Determining the compensated first voltage drop threshold as the target voltage drop threshold;

[0122] The first voltage drop threshold is a voltage drop threshold corresponding to the previous charging of the battery.

[0123] In some possible implementations of the embodiments of the present application, the determination module 802 is specifically configured to:

[0124] When the time interval is greater than or equal to the interval threshold, determining the second state parameter as the target state parameter;

[0125] When the time interval is less than the interval threshold, the parameter with the larger value between the first state parameter and the second state parameter is determined as the target state parameter.

[0126] In some possible implementations of the embodiments of the present application, the target state parameter includes a target environmental state parameter and a target battery impedance;

[0127] The acquisition module 801 is further used to acquire a first full charge voltage of the battery under target environmental state parameters and a second full charge voltage of the battery under a reference temperature;

[0128] The determination module 802 is also used to determine the voltage drop threshold compensation value according to the difference between the first full charge voltage and the second full charge voltage, as well as the charging cut-off current and the target battery impedance; and to determine the compensated first voltage drop threshold according to the first voltage drop threshold and the voltage drop threshold compensation value.

[0129] In some possible implementations of the embodiments of the present application, the acquisition module 801 is further configured to acquire the discharge current of the battery after the same charging is terminated after the determination module determines the target state parameter from the first state parameter and the second state parameter according to the time interval;

[0130] The compensation module is further used to compensate the first voltage drop threshold according to the charging cut-off current, the discharging current and the target state parameter;

[0131] The determination module 802 is further configured to determine the compensated first voltage drop threshold as the target voltage drop threshold.

[0132] The embodiments of the present application can dynamically determine the voltage drop threshold according to the degree of battery aging, so that the battery will not be frequently recharged in a short period of time. Moreover, when the user uses the electronic device while charging, the battery can maintain a relatively low capacity, which is beneficial to the health of the battery and is not prone to triggering battery accidents.

[0133] The battery charging device in the embodiment of the present application can be a device, or a component in an electronic device, such as an integrated circuit or a chip. For example, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) device, a robot, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), etc., and can also be a server, a network attached storage (Network Attached Storage, NAS), a user computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., and the embodiment of the present application does not make specific limitations.

[0134] The electronic device in the embodiment of the present application may be a terminal with an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0135] The battery charging device provided in the embodiment of the present application can achieve Figures 1 to 7 The various processes in the battery charging method embodiment can achieve the same technical effect, and to avoid repetition, they will not be described here.

[0136] like Fig. 9 As shown, an embodiment of the present application also provides an electronic device 900, including a processor 901 and a memory 902, wherein the memory 902 stores programs or instructions that can be executed on the processor 901, and when the program or instructions are executed by the processor 901, the various steps of the above-mentioned battery charging method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, they are not described here.

[0137] It should be noted that the electronic devices in the embodiments of the present application include the above-mentioned mobile terminals and non-mobile terminals.

[0138] Fig.10 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application.

[0139] The electronic device 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010 and other components.

[0140] Those skilled in the art will appreciate that the electronic device 1000 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1010 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.10 The structure of the electronic device 1000 shown in the figure does not constitute a limitation on the electronic device 1000. The electronic device 1000 may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0141] The processor 1010 is used to obtain a first state parameter and a second state parameter of the battery, wherein the first state parameter is used to characterize the aging degree of the battery at the beginning of charging of the same charging, and the second state parameter is used to characterize the aging degree of the battery at the end of charging of the same charging;

[0142] Determining a target voltage drop threshold of the battery according to the first state parameter and the second state parameter;

[0143] When the voltage drop value of the battery after the same charging is terminated is greater than or equal to the target voltage drop threshold, the battery is charged.

[0144] In an embodiment of the present application, a first state parameter and a second state parameter of the battery are obtained, the first state parameter is used to characterize the degree of aging of the battery at the beginning of the same charge, and the second state parameter is used to characterize the degree of aging of the battery at the end of the same charge; the target voltage drop threshold of the battery is determined according to the first state parameter and the second state parameter; the battery is charged when the voltage drop value of the battery after the end of the same charge is greater than or equal to the target voltage drop threshold. That is, the embodiment of the present application can dynamically determine the voltage drop threshold of the battery according to the state parameters of the battery at the beginning and end of the same charge. Because the corresponding state parameters will be different for different degrees of battery aging, the embodiment of the present application dynamically determines the voltage drop threshold according to different state parameters of the battery, fully considering the influence of battery aging on the state parameters, so as to avoid the problem of frequent recharging of aging batteries.

[0145] In some possible implementations of the embodiments of the present application, the processor 1010 is specifically configured to:

[0146] Determine the time interval between the end time of the previous charging and the start time of the next charging in two adjacent charging processes;

[0147] determining a target state parameter from the first state parameter and the second state parameter according to the time interval;

[0148] According to the charging cut-off current and the target state parameter at the time of charging cut-off of the same charging, the first voltage drop threshold is compensated, and the compensated first voltage drop threshold is determined as the target voltage drop threshold;

[0149] The first voltage drop threshold is a voltage drop threshold corresponding to the previous charging of the battery.

[0150] In some possible implementations of the embodiments of the present application, the processor 1010 is specifically configured to:

[0151] When the time interval is greater than or equal to the interval threshold, determining the second state parameter as the target state parameter;

[0152] When the time interval is less than the interval threshold, the parameter with the larger value between the first state parameter and the second state parameter is determined as the target state parameter.

[0153] In some possible implementations of the embodiments of the present application, the target state parameter includes a target environmental state parameter and a target battery impedance;

[0154] The processor 1010 is specifically configured to:

[0155] Acquire a first full charge voltage of the battery under target environmental state parameters and a second full charge voltage of the battery at a reference temperature;

[0156] Determining a voltage drop threshold compensation value according to a difference between the first full charge voltage and the second full charge voltage, as well as a charge cutoff current and a target battery impedance;

[0157] A compensated first voltage drop threshold is determined according to the first voltage drop threshold and the voltage drop threshold compensation value.

[0158] In some possible implementations of the embodiments of the present application, the processor 1010 is specifically configured to:

[0159] After determining the target state parameter from the first state parameter and the second state parameter according to the time interval, obtaining the discharge current of the battery after the same charging is terminated;

[0160] The first voltage drop threshold is compensated according to the charge cut-off current, the discharge current and the target state parameter, and the compensated first voltage drop threshold is determined as the target voltage drop threshold.

[0161] The embodiments of the present application can dynamically determine the voltage drop threshold according to the degree of battery aging, so that the battery will not be frequently recharged in a short period of time. Moreover, when the user uses the electronic device while charging, the battery can maintain a relatively low capacity, which is beneficial to the health of the battery and is not prone to triggering battery accidents.

[0162] It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 9041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1006 may include a display panel 9061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0163] The memory 1009 can be used to store software programs and various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1009 may include a volatile memory or a non-volatile memory, or the memory 1009 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 909 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0164] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1010.

[0165] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned battery charging method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0166] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0167] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned battery charging method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0168] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0169] An embodiment of the present application provides a computer program product, which is stored in a storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned battery charging method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0170] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0171] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the relevant technology, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0172] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A battery charging method, characterized in that: Applied to an electronic device, the electronic device includes a battery, and the method includes: Acquire a first state parameter and a second state parameter of the battery, wherein the first state parameter is used to characterize the aging degree of the battery at the beginning of charging of the same charging, and the second state parameter is used to characterize the aging degree of the battery at the end of charging of the same charging; Determining a target voltage drop threshold of the battery according to the first state parameter and the second state parameter; When the voltage drop value of the battery after the same charging is terminated is greater than or equal to the target voltage drop threshold, the battery is charged.

2. The method according to claim 1, characterized in that The step of determining a target voltage drop threshold of the battery according to the first state parameter and the second state parameter includes: Determine the time interval between the end time of the previous charging and the start time of the next charging in two adjacent charging processes; determining a target state parameter from the first state parameter and the second state parameter according to the time interval; According to the charging cut-off current at the time of charging cut-off of the same charging and the target state parameter, a first voltage drop threshold is compensated, and the compensated first voltage drop threshold is determined as a target voltage drop threshold; The first voltage drop threshold is a voltage drop threshold corresponding to the previous charging of the battery.

3. The method according to claim 2, characterized in that Determining a target state parameter from the first state parameter and the second state parameter according to the time interval includes: When the time interval is greater than or equal to an interval threshold, determining the second state parameter as a target state parameter; When the time interval is less than the interval threshold, the parameter with the larger value between the first state parameter and the second state parameter is determined as the target state parameter.

4. The method according to claim 2 or 3, characterized in that: The target state parameters include target environmental state parameters and target battery impedance; The compensating the first voltage drop threshold according to the charging cut-off current when charging is cut off in the same charging and the target state parameter comprises: Acquire a first full charge voltage of the battery under the target environmental state parameters and a second full charge voltage of the battery at a reference temperature; determining a voltage drop threshold compensation value according to a difference between the first full charge voltage and the second full charge voltage, the charge cutoff current, and the target battery impedance; A compensated first voltage drop threshold is determined according to the first voltage drop threshold and the voltage drop threshold compensation value.

5. The method according to claim 2 or 3, characterized in that: After determining the target state parameter from the first state parameter and the second state parameter according to the time interval, the method further includes: Obtaining the discharge current of the battery after the same charging is terminated; The first voltage drop threshold is compensated according to the charge cut-off current, the discharge current and the target state parameter, and the compensated first voltage drop threshold is determined as the target voltage drop threshold.

6. A battery charging device, characterized in that: Applied to electronic equipment, the electronic equipment includes a battery, and the device includes: an acquisition module, configured to acquire a first state parameter and a second state parameter of the battery, wherein the first state parameter is used to characterize the aging degree of the battery at the beginning of charging of the same charging, and the second state parameter is used to characterize the aging degree of the battery at the end of charging of the same charging; a determination module, configured to determine a target voltage drop threshold of the battery according to the first state parameter and the second state parameter; The charging module is used to charge the battery when the voltage drop value of the battery after the same charging is terminated is greater than or equal to the target voltage drop threshold.

7. The device according to claim 6, characterized in that The determination module is specifically used for: Determine the time interval between the end time of the previous charging and the start time of the next charging in two adjacent charging processes; determining a target state parameter from the first state parameter and the second state parameter according to the time interval; The device also includes: A compensation module, used for compensating the first voltage drop threshold value according to the charging cut-off current at the charging cut-off of the same charging and the target state parameter; The determination module is specifically used for: Determining the compensated first voltage drop threshold as the target voltage drop threshold; The first voltage drop threshold is a voltage drop threshold corresponding to the previous charging of the battery.

8. The device according to claim 7, characterized in that The determination module is specifically used for: When the time interval is greater than or equal to an interval threshold, determining the second state parameter as a target state parameter; When the time interval is less than the interval threshold, the parameter with the larger value between the first state parameter and the second state parameter is determined as the target state parameter.

9. The device according to claim 7 or 8, characterized in that The target state parameters include target environmental state parameters and target battery impedance; The acquisition module is further used to acquire a first full charge voltage of the battery under the target environmental state parameters and a second full charge voltage of the battery at a reference temperature; The determination module is also used to determine the voltage drop threshold compensation value according to the difference between the first full charge voltage and the second full charge voltage, the charging cut-off current and the target battery impedance; and determine the compensated first voltage drop threshold according to the first voltage drop threshold and the voltage drop threshold compensation value.

10. The device according to claim 7 or 8, characterized in that The acquisition module is further configured to acquire the discharge current of the battery after the same charging is terminated after the determination module determines the target state parameter from the first state parameter and the second state parameter according to the time interval; The compensation module is further used to compensate the first voltage drop threshold according to the charging cut-off current, the discharging current and the target state parameter; The determination module is further configured to determine the compensated first voltage drop threshold as the target voltage drop threshold.

11. An electronic device, characterized in that: The electronic device comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method according to any one of claims 1 to 5 are implemented.

12. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

13. A computer program product, characterized in that The program product is stored in a storage medium, and the program product is executed by at least one processor to implement the steps of the method according to any one of claims 1 to 5.

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