Battery charging method and device, electronic equipment and storage medium

Abstract

The invention relates to a battery charging method and device, electronic equipment and a storage medium. The battery charging method comprises the following steps: determining a corresponding relation between a charge state and an open-circuit voltage of a target battery; when it is detected that the target battery enters the standing state, the standing voltage of the target battery is obtained; determining a first capacity of the target battery according to the standing voltage and the corresponding relation; determining a third capacity according to the first capacity, the charged capacity of the target battery and a second capacity; wherein the second capacity is the residual capacity when the battery voltage of the target battery cannot supply power; and charging the target battery according to the third capacity. According to the embodiment of the invention, the third capacity of subsequent charging is adjusted according to the corresponding relation, the standing voltage and the charged capacity in the charging process of the target battery, so that the target battery can be charged with more capacity, and the available capacity of the target battery is effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the field of battery technology, and in particular to a battery charging method, device, electronic device and storage medium. Background Art

[0002] With the development of battery applications, especially in electric vehicles and smartphone industries, users have an increasingly urgent demand for battery life and cycle stability. However, due to the limitations of battery development, performance improvements are difficult to match user expectations.

[0003] In related solutions, a multi-stage constant current and constant voltage charging method is often used for charging. However, the battery will age during use, causing the capacity charged into the battery under the existing charging method to decrease, thereby causing the battery's available capacity to decrease, affecting battery life, and further causing a decrease in user experience. Summary of the invention

[0004] The present disclosure provides a battery charging method, device, electronic device and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a battery charging method is provided, the method comprising:

[0006] Determine the corresponding relationship between the state of charge and the open circuit voltage of the target battery;

[0007] When detecting that the target battery enters a static state, acquiring a static voltage of the target battery;

[0008] Determining a first capacity of the target battery according to the static voltage and the corresponding relationship;

[0009] Determine a third capacity according to the first capacity, the charged capacity of the target battery and the second capacity; wherein the second capacity is the remaining capacity when the battery voltage of the target battery cannot supply power;

[0010] The target battery is charged according to the third capacity.

[0011] In some embodiments, determining the correspondence between the state of charge and the open circuit voltage of the target battery includes:

[0012] The target battery is controlled to discharge at a preset temperature to obtain the corresponding relationship between the state of charge and the open circuit voltage of the target battery at the preset temperature.

[0013] In some embodiments, the target battery enters a rest state, including at least one of the following:

[0014] The charge and discharge current of the target battery is less than or equal to a preset current;

[0015] The battery voltage change value of the target battery is less than or equal to a first threshold.

[0016] In some embodiments, when detecting that the target battery enters a static state, obtaining the static voltage of the target battery includes:

[0017] When it is detected that the target battery enters the rest state, the rest voltage of the target battery is acquired within a preset voltage interval; wherein a change value of the rest voltage of the target battery within the preset voltage interval is greater than or equal to a second threshold.

[0018] In some embodiments, determining the first capacity of the target battery according to the static voltage and the corresponding relationship includes:

[0019] Determining the discharge capacity of the target battery according to the corresponding relationship between the state of charge and the open circuit voltage of the target battery within the preset voltage range;

[0020] The first capacity is determined according to the change value of the static voltage and the discharge capacity.

[0021] In some embodiments, the method further comprises:

[0022] When the third capacity is greater than or equal to a preset capacity, discharging the target battery;

[0023] The step of charging the target battery according to the third capacity includes:

[0024] When the battery voltage of the target battery reaches a preset voltage, the target battery is charged according to the third capacity; wherein the preset voltage is less than or equal to the open circuit voltage of the target battery.

[0025] In some embodiments, when the third capacity is greater than or equal to a preset capacity, discharging the target battery includes:

[0026] When the third capacity is greater than or equal to the preset capacity, determining a discharge current according to a battery state of the target battery;

[0027] The target battery is discharged according to the discharge current.

[0028] According to a second aspect of the present disclosure, there is provided a battery charging device, the device comprising:

[0029] A first determination module, used to determine the corresponding relationship between the state of charge and the open circuit voltage of the target battery;

[0030] an acquisition module, configured to acquire a static voltage of the target battery when detecting that the target battery enters a static state;

[0031] A second determining module, configured to determine a first capacity of the target battery according to the static voltage and the corresponding relationship;

[0032] a third determination module, configured to determine a third capacity according to the first capacity, the charged capacity of the target battery, and the second capacity; wherein the second capacity is the remaining capacity when the battery voltage of the target battery cannot supply power;

[0033] A charging module is used to charge the target battery according to the third capacity.

[0034] In some embodiments, the first determining module is further configured to:

[0035] The target battery is controlled to discharge at a preset temperature to obtain the corresponding relationship between the state of charge and the open circuit voltage of the target battery at the preset temperature.

[0036] In some embodiments, the target battery enters a rest state, including at least one of the following:

[0037] The charge and discharge current of the target battery is less than or equal to a preset current;

[0038] The battery voltage change value of the target battery is less than or equal to a first threshold.

[0039] In some embodiments, the acquisition module is further used to:

[0040] When it is detected that the target battery enters the rest state, the rest voltage of the target battery is acquired within a preset voltage interval; wherein a change value of the rest voltage of the target battery within the preset voltage interval is greater than or equal to a second threshold.

[0041] In some embodiments, the second determining module is further configured to:

[0042] Determining the discharge capacity of the target battery according to the corresponding relationship between the state of charge and the open circuit voltage of the target battery within the preset voltage range;

[0043] The first capacity is determined according to the change value of the static voltage and the discharge capacity.

[0044] In some embodiments, the apparatus further comprises:

[0045] a discharging module, configured to discharge the target battery when the third capacity is greater than or equal to a preset capacity;

[0046] The charging module is also used for:

[0047] When the battery voltage of the target battery reaches a preset voltage, the target battery is charged according to the third capacity; wherein the preset voltage is less than or equal to the open circuit voltage of the target battery.

[0048] In some embodiments, the discharge module is further used to:

[0049] When the third capacity is greater than or equal to the preset capacity, determining a discharge current according to a battery state of the target battery;

[0050] The target battery is discharged according to the discharge current.

[0051] According to a third aspect of the present disclosure, an electronic device is provided, including:

[0052] a memory storing computer-readable instructions;

[0053] A processor, connected to the memory, is used to implement the steps of the method described in the first aspect of the above embodiment by running the computer-readable instructions.

[0054] According to a fourth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the steps of the method described in the first aspect of the above embodiment can be implemented.

[0055] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0056] The battery charging method provided by the embodiment of the present disclosure determines the corresponding relationship between the state of charge and the open circuit voltage of the target battery, and determines the first capacity of the target battery in combination with the static voltage of the target battery, and then determines the third capacity of the target battery to be charged according to the first capacity, the charged capacity and the second capacity, and charges the target battery. In this way, during the charging process of the target battery, the subsequent charging capacity can be determined in combination with the static voltage, the corresponding relationship between the state of charge and the open circuit voltage of the target battery, and the charged capacity, thereby increasing the amount of electricity charged into the target battery and improving the battery life.

[0057] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0059] Figure 1 A battery charging method according to an embodiment of the present disclosure is shown in FIG. Figure 1 ;

[0060] Figure 2 A battery charging method according to an embodiment of the present disclosure is shown in FIG. Figure 2 ;

[0061] Figure 3 A battery charging method according to an embodiment of the present disclosure is shown in FIG. Figure 3 ;

[0062] Figure 4 is a structural schematic diagram of a battery charging device provided by an embodiment of the present disclosure;

[0063] Figure 5 It is a structural schematic diagram of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0064] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0065] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0066] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0067] The present disclosure provides a battery charging method, such as Figure 1 As shown, the battery charging method includes:

[0068] Step 110: Determine the corresponding relationship between the state of charge and the open circuit voltage of the target battery;

[0069] Step 120: when it is detected that the target battery enters a static state, obtaining a static voltage of the target battery;

[0070] Step 130: determining a first capacity of the target battery according to the static voltage and the corresponding relationship;

[0071] Step 140: determining a third capacity according to the first capacity, the charged capacity of the target battery, and the second capacity; wherein the second capacity is the remaining capacity when the battery voltage of the target battery cannot supply power;

[0072] Step 150: Charge the target battery according to the third capacity.

[0073] In one embodiment, the state of charge (SOC) may be a capacity state of a target battery, which is an indicator for indicating the ratio of the available capacity of the target battery to the nominal capacity. For example, when the SOC of the target battery is 1, it indicates that the target battery is fully charged, and when the SOC of the target battery is 0, it indicates that the target battery is fully discharged.

[0074] In another embodiment, the state of charge may also be indicated by the depth of discharge (DOD). For example, when the target battery is fully charged, the DOD of the target battery is 100%, and when the target battery is fully discharged, the DOD of the target battery is 0%.

[0075] The target battery may be a rechargeable battery or a power battery.

[0076] In some embodiments, lithium-ion batteries, which are widely used in practice, are generally selected as target batteries.

[0077] The open circuit voltage (OCV) may be a potential difference between a positive electrode and a negative electrode of the target battery when the target battery is open circuited.

[0078] The correspondence may be a numerical relationship between the SOC and OCV of the target battery, and the correspondence does not change with battery aging. For example, one SOC value corresponds to one OCV value. For example, when OCV is the lowest discharge voltage of the target battery, the SOC of the target battery is 0, and when OCV is the full charge voltage of the target battery, the SOC of the target battery is 1.

[0079] In the disclosed embodiment, after determining the correspondence between the SOC and OCV of the target battery, it can be stored in the device to which the target battery is applied, and the correspondence can be directly obtained from the device when the target battery is subsequently charged. Exemplarily, when the target battery is applied to a mobile phone, the correspondence is stored in the mobile phone memory, and the correspondence is read from the mobile phone memory when the target battery needs to be charged. In this way, the convenience of charging the target battery can be improved. Exemplarily, when the target battery is applied to a new energy vehicle, the correspondence is stored in the on-board device, and the correspondence is read from the memory of the on-board device when the target battery needs to be charged. In this way, the convenience of charging the target battery can be improved.

[0080] The static state may be when the target battery stops charging and discharging, and is used to indicate that the target battery is in a stable state, for example, relevant parameters of the target battery are basically stable, including but not limited to a small charge and discharge current of the target battery and / or a small change value of the battery voltage.

[0081] The static voltage may be a battery voltage when the target battery is in a static state.

[0082] The first capacity may be a fully charged capacity of the target battery, that is, a battery capacity when the target battery is fully charged.

[0083] In the embodiment of the present disclosure, the SOC of the target battery can be determined by taking the static voltage obtained by detecting the target battery in a static state as the OCV of the target battery and combining the corresponding relationship between the SOC and OCV of the aforementioned target battery. The first capacity of the target battery can be determined by combining multiple determined OCVs and SOCs.

[0084] The charged capacity may be the capacity of the target battery that has been charged during the current charging process, and the charged capacity may be determined by the charging parameters of the target battery. For example, the charged capacity of the target battery charged during the charging time is obtained by integrating the charging current and the charging time of the target battery.

[0085] The second capacity is the remaining capacity when the battery voltage of the target battery cannot supply power. Exemplarily, the second capacity may be the battery capacity between the lowest supply voltage and the lowest discharge voltage of the target battery.

[0086] In the embodiment of the present disclosure, the minimum supply voltage of the target battery is set to be higher than the minimum discharge voltage, that is, the target battery stops discharging when it discharges to the minimum supply voltage. In this way, the target battery will not be over-discharged when supplying power, thereby reducing the impact on the performance and life of the target battery.

[0087] In the embodiments of the present disclosure, different types of target batteries and target batteries applied to different devices often have different operating cutoff voltages, so the minimum supply voltage of the target battery can also be set according to the type of target battery or the type of device to which the target battery is applied. For example, the minimum supply voltage of the target battery determined when the device to which the target battery is applied is a mobile phone can be lower than the minimum supply voltage of the target battery determined when the device to which the target battery is applied is an electric car. In this way, the minimum supply voltage of the target battery can be set to be more in line with actual needs.

[0088] The third capacity may be the chargeable capacity of the target battery. In the embodiment of the present disclosure, the third capacity of the target battery may be determined by determining the first capacity, the second capacity, and the charged capacity. Exemplarily, the first capacity is equal to the sum of the second capacity, the third capacity, and the charged capacity, so the third capacity may be equal to the first capacity minus the second capacity and the charged capacity.

[0089] In the disclosed embodiment, the third capacity of the target battery is determined, and then the target battery is charged according to the third capacity. Exemplarily, when the capacity charged to the target battery reaches the third capacity, charging is stopped. In this way, on the one hand, the target battery can be fully charged, improving the battery life of the target battery and the user experience, and on the other hand, the overcharging phenomenon of the target battery can be reduced, thereby reducing the impact on the performance and life of the target battery.

[0090] In the disclosed embodiment, the first capacity is determined by the correspondence between the SOC and OCV of the target battery, and the third capacity is determined in combination with the second capacity and the charged capacity, and the target battery is charged according to the third capacity. In this way, the target battery can be charged based on the correspondence between the SOC and OCV of the target battery that is not affected by battery aging, so that the target battery can be fully charged, reducing the impact of battery aging on battery charging, thereby improving the battery life of the target battery and the user experience.

[0091] In some embodiments, step 110 may include:

[0092] The target battery is controlled to discharge at a preset temperature to obtain the corresponding relationship between the state of charge and the open circuit voltage of the target battery at the preset temperature.

[0093] The preset temperature may be a temperature set according to actual needs. For example, the preset temperature may be selected within the operating temperature range of the target battery, for example, when the operating temperature range of the target battery is -20 to 60°C, 0°C, 25°C, and 50°C may be selected as the preset temperature.

[0094] In the disclosed embodiment, the temperature of the target battery during charging can be used as the preset temperature. In this way, the influence of temperature on battery charging can be reduced, thereby improving the accuracy of determining the corresponding relationship between the SOC and OCV of the target battery, and further improving the battery life of the target battery and the user experience.

[0095] In the embodiment of the present disclosure, the fully charged target battery may be discharged, and the open circuit voltage across the target battery may be recorded in real time, and the recorded voltage curve may be used as the corresponding relationship.

[0096] In the disclosed embodiment, the target battery may be discharged with a relatively small current, so that the target battery is completely discharged, thereby improving the accuracy of the corresponding relationship determination.

[0097] In some embodiments, the target battery enters a rest state, including at least one of the following:

[0098] The charge and discharge current of the target battery is less than or equal to a preset current;

[0099] The battery voltage change value of the target battery is less than or equal to a first threshold.

[0100] The preset current can be set based on actual needs. Exemplarily, the preset current can be set to 1-3 μA, preferably 2 μA. For example, when the charge and discharge current of the target battery is less than 2 μA, it indicates that the charge and discharge current of the target battery is basically stable at this time, and it can be considered that the target battery enters a static state.

[0101] The first threshold value can be set based on actual needs. For example, the first threshold value can be set to 4 to 6 μV, preferably 5 μV. For example, when the battery voltage change value of the target battery is less than 5 μV / s, it indicates that the battery voltage of the target battery is basically stable at this time, and it can be considered that the target battery enters a static state.

[0102] In some embodiments, step 120 may include:

[0103] When it is detected that the target battery enters the rest state, the rest voltage of the target battery is acquired within a preset voltage interval; wherein a change value of the rest voltage of the target battery within the preset voltage interval is greater than or equal to a second threshold.

[0104] The preset voltage interval may be an area where the static voltage of the target battery changes greatly. For example, in the discharge curve of the target battery, the preset voltage interval is a portion of the discharge curve where the DOD is less than 30% or the DOD is greater than 70%. Within the preset voltage interval, the change in static voltage and the change in battery capacity are both large, so the first capacity of the target battery can be determined by the change value of the static voltage and the change value of the battery capacity.

[0105] The second threshold value may be set based on actual needs. For example, the second threshold value may be 4 to 6 μV, preferably 5 μV. For example, when the change value of the static voltage of the target battery is greater than 5 μV / s, it can be considered that the target battery is within the preset voltage range.

[0106] In the platform voltage region of the target battery (the portion of the discharge curve where DOD is greater than 30% and less than 70%), the voltage change of the target battery is the smallest while the change of the battery capacity is large. Therefore, the static voltage obtained in the platform voltage region will affect the accuracy of the first capacity determination.

[0107] In the embodiment of the present disclosure, by acquiring the static voltage of the target battery within a preset voltage interval, the influence of the static voltage acquired in the platform voltage region of the target battery on the first capacity determination can be reduced, thereby improving the accuracy of the first capacity determination.

[0108] In some embodiments, Figure 2 As shown, step 130 may include:

[0109] Step 131: determining the discharge capacity of the target battery according to the corresponding relationship between the state of charge and the open circuit voltage of the target battery within the preset voltage range;

[0110] Step 132: Determine the first capacity according to the change value of the static voltage and the discharge capacity.

[0111] In the embodiment of the present disclosure, the discharge capacity of the target battery can be determined by the correspondence between the SOC and OCV of the target battery in the preset voltage range. Exemplarily, point a and point b are determined on the correspondence between SOC and OCV, the OCV of the target battery at point a and the OCV of point b are obtained, and the battery capacity charged in the process from point a to point b of the target battery is calculated, so as to determine the first capacity according to the change value of OCV from point a to point b and the battery capacity charged in the process from point a to point b of the target battery.

[0112] In some embodiments, the method further comprises:

[0113] Step 160: When the third capacity is greater than or equal to a preset capacity, discharging the target battery;

[0114] The step of charging the target battery according to the third capacity includes:

[0115] When the battery voltage of the target battery reaches a preset voltage, the target battery is charged according to the third capacity; wherein the preset voltage is less than or equal to the open circuit voltage of the target battery.

[0116] The preset capacity can be set based on actual needs. For example, the preset capacity can be based on the value that will cause a noticeable perceived short battery life during user use. For example, when the target battery is applied to a mobile phone, the battery life of the mobile phone used by the user is reduced by 1 hour, which affects the user experience. At this time, the preset capacity can be determined based on the reduced battery life and the average discharge current of the mobile phone. For example, the preset capacity is equal to the reduced battery life multiplied by the average discharge current of the mobile phone.

[0117] In the disclosed embodiment, by discharging the target battery, the electrochemical polarization caused by charging the target battery can be quickly eliminated, so that the battery voltage of the target battery is close to the open circuit voltage, thereby shortening the charging time of the target battery and improving the charging efficiency.

[0118] In the disclosed embodiment, by comparing the third capacity with the preset capacity, the target battery is charged when the third capacity is greater than the preset capacity. In this way, on the one hand, the battery capacity charged into the target battery can be increased, the battery life of the target battery can be guaranteed, and the user experience can be improved. On the other hand, the battery overcharge phenomenon caused by calculation error can be reduced, and the battery life and performance can be improved.

[0119] In some embodiments, Figure 3 As shown, step 160 may include:

[0120] Step 161: when the third capacity is greater than or equal to the preset capacity, determining a discharge current according to a battery state of the target battery;

[0121] Step 162: Discharge the target battery according to the discharge current.

[0122] In the disclosed embodiment, the discharge current can be determined according to the battery status of the target battery. Exemplarily, the higher the degree of aging of the target battery, the greater the discharge current. For example, the discharge current can be determined according to the ratio between the first capacity and the nominal capacity of the battery. The nominal capacity is the design capacity of the battery when it leaves the factory, and the first capacity is calculated and determined during the charging process of the target battery. As the target battery is used more, the first capacity will gradually decrease. In this way, the discharge current is determined by the ratio of the first capacity to the nominal capacity, so that the discharge current can be determined in real time according to the battery status of the target battery, thereby reducing the impact of battery aging.

[0123] like Figure 4 As shown, a battery charging device provided by an embodiment of the present disclosure includes:

[0124] A first determination module 110, configured to determine a corresponding relationship between a state of charge and an open circuit voltage of a target battery;

[0125] An acquisition module 120, configured to acquire a static voltage of the target battery when detecting that the target battery enters a static state;

[0126] A second determining module 130, configured to determine a first capacity of the target battery according to the static voltage and the corresponding relationship;

[0127] A third determination module 140 is used to determine a third capacity according to the first capacity, the charged capacity of the target battery and the second capacity; wherein the second capacity is the remaining capacity when the battery voltage of the target battery cannot supply power;

[0128] The charging module 150 is configured to charge the target battery according to the third capacity.

[0129] In some embodiments, the first determination module 110, the acquisition module 120, the second determination module 130, the third determination module 140 and the charging module 150 may all be program modules, which can implement the functions of the above modules after being executed by the processor.

[0130] In other embodiments, the first determination module 110, the acquisition module 120, the second determination module 130, the third determination module 140 and the charging module 150 may all be soft-hard combination modules; the soft-hard combination modules include but are not limited to: various programmable arrays; the field programmable arrays include but are not limited to: field programmable arrays and / or complex programmable arrays.

[0131] In some other embodiments, the first determination module 110, the acquisition module 120, the second determination module 130, the third determination module 140 and the charging module 150 may all be pure hardware modules; the pure hardware modules include but are not limited to: application-specific integrated circuits.

[0132] In some embodiments, the first determining module 110 is further configured to:

[0133] The target battery is controlled to discharge at a preset temperature to obtain the corresponding relationship between the state of charge and the open circuit voltage of the target battery at the preset temperature.

[0134] In some embodiments, the target battery enters a rest state, including at least one of the following:

[0135] The charge and discharge current of the target battery is less than or equal to a preset current;

[0136] The battery voltage change value of the target battery is less than or equal to a first threshold.

[0137] In some embodiments, the acquisition module 120 is further used to:

[0138] When it is detected that the target battery enters the rest state, the rest voltage of the target battery is acquired within a preset voltage interval; wherein a change value of the rest voltage of the target battery within the preset voltage interval is greater than or equal to a second threshold.

[0139] In some embodiments, the second determining module 130 is further configured to:

[0140] Determining the discharge capacity of the target battery according to the corresponding relationship between the state of charge and the open circuit voltage of the target battery within the preset voltage range;

[0141] The first capacity is determined according to the change value of the static voltage and the discharge capacity.

[0142] In some embodiments, the apparatus further comprises:

[0143] a discharging module, configured to discharge the target battery when the third capacity is greater than or equal to a preset capacity;

[0144] The charging module 150 is also used for:

[0145] When the battery voltage of the target battery reaches a preset voltage, the target battery is charged according to the third capacity; wherein the preset voltage is less than or equal to the open circuit voltage of the target battery.

[0146] In some embodiments, the discharge module is further used to:

[0147] When the third capacity is greater than or equal to the preset capacity, determining a discharge current according to a battery state of the target battery;

[0148] The target battery is discharged according to the discharge current.

[0149] In the present disclosure, Figure 5 As shown, an electronic device 700 is provided, including:

[0150] Memory 704 for storing processor executable instructions;

[0151] A processor 720 connected to the memory 704;

[0152] The processor 720 is configured to execute the battery charging method provided by any of the aforementioned technical solutions.

[0153] is a block diagram of an electronic device 700 according to an exemplary embodiment. For example, the device 700 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0154] Reference Figure 5 , the device 700 may include one or more of the following components: a processing component 702 , a memory 704 , a power component 706 , a multimedia component 708 , an audio component 710 , an input / output (I / O) interface 712 , a sensor component 714 , and a communication component 716 .

[0155] The processing component 702 generally controls the overall operation of the device 700, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 702 may include one or more processors 720 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 702 may include one or more modules to facilitate the interaction between the processing component 702 and other components. For example, the processing component 702 may include a multimedia module to facilitate the interaction between the multimedia component 708 and the processing component 702.

[0156] The memory 704 is configured to store various types of data to support operations on the device 700. Examples of such data include instructions for any application or method operating on the device 700, contact data, phone book data, messages, pictures, videos, etc. The memory 704 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0157] The power component 706 provides power to the various components of the device 700. The power component 706 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 700.

[0158] The multimedia component 708 includes a screen that provides an output interface between the device 700 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 708 includes a front camera and / or a rear camera. When the device 700 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0159] The audio component 710 is configured to output and / or input audio signals. For example, the audio component 710 includes a microphone (MIC), and when the device 700 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 704 or sent via the communication component 716. In some embodiments, the audio component 710 also includes a speaker for outputting audio signals.

[0160] I / O interface 712 provides an interface between processing component 702 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0161] The sensor assembly 714 includes one or more sensors for providing various aspects of status assessment for the device 700. For example, the sensor assembly 714 can detect the open / closed state of the device 700, the relative positioning of components, such as the display and keypad of the device 700, and the sensor assembly 714 can also detect the position change of the device 700 or a component of the device 700, the presence or absence of user contact with the device 700, the orientation or acceleration / deceleration of the device 700, and the temperature change of the device 700. The sensor assembly 714 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 714 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 714 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0162] The communication component 716 is configured to facilitate wired or wireless communication between the device 700 and other devices. The device 700 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 716 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 716 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0163] In an exemplary embodiment, the apparatus 700 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above methods.

[0164] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 704 including instructions, and the instructions can be executed by the processor 720 of the device 700 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0165] An embodiment of the present disclosure provides a non-temporary computer-readable storage medium. When instructions in the storage medium are executed by a processor of a computer, the computer is enabled to execute the battery charging method described in one or more of the aforementioned technical solutions.

[0166] When the processor executes the instruction, it can at least perform the following steps:

[0167] Determine the corresponding relationship between the state of charge and the open circuit voltage of the target battery;

[0168] When detecting that the target battery enters a static state, acquiring a static voltage of the target battery;

[0169] Determining a first capacity of the target battery according to the static voltage and the corresponding relationship;

[0170] Determine a third capacity according to the first capacity, the charged capacity of the target battery and the second capacity; wherein the second capacity is the remaining capacity when the battery voltage of the target battery cannot supply power;

[0171] The target battery is charged according to the third capacity.

[0172] In some embodiments, determining the correspondence between the state of charge and the open circuit voltage of the target battery includes:

[0173] The target battery is controlled to discharge at a preset temperature to obtain the corresponding relationship between the state of charge and the open circuit voltage of the target battery at the preset temperature.

[0174] In some embodiments, the target battery enters a rest state, including at least one of the following:

[0175] The charge and discharge current of the target battery is less than or equal to a preset current;

[0176] The battery voltage change value of the target battery is less than or equal to a first threshold.

[0177] In some embodiments, when detecting that the target battery enters a static state, obtaining the static voltage of the target battery includes:

[0178] When it is detected that the target battery enters the rest state, the rest voltage of the target battery is acquired within a preset voltage interval; wherein a change value of the rest voltage of the target battery within the preset voltage interval is greater than or equal to a second threshold.

[0179] In some embodiments, determining the first capacity of the target battery according to the static voltage and the corresponding relationship includes:

[0180] Determining the discharge capacity of the target battery according to the corresponding relationship between the state of charge and the open circuit voltage of the target battery within the preset voltage range;

[0181] The first capacity is determined according to the change value of the static voltage and the discharge capacity.

[0182] In some embodiments, the method further comprises:

[0183] When the third capacity is greater than or equal to a preset capacity, discharging the target battery;

[0184] The step of charging the target battery according to the third capacity includes:

[0185] When the battery voltage of the target battery reaches a preset voltage, the target battery is charged according to the third capacity; wherein the preset voltage is less than or equal to the open circuit voltage of the target battery.

[0186] In some embodiments, when the third capacity is greater than or equal to a preset capacity, discharging the target battery includes:

[0187] When the third capacity is greater than or equal to the preset capacity, determining a discharge current according to a battery state of the target battery;

[0188] The target battery is discharged according to the discharge current.

[0189] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure, which follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the attached application documents.

[0190] It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the attached application documents.

Claims

1. A battery charging method, characterized in that: The method comprises: Determine the corresponding relationship between the state of charge and the open circuit voltage of the target battery; When detecting that the target battery enters a static state, acquiring a static voltage of the target battery; Determining a first capacity of the target battery according to the static voltage and the corresponding relationship; Determine a third capacity according to the first capacity, the charged capacity of the target battery and the second capacity; wherein the second capacity is the remaining capacity when the battery voltage of the target battery cannot supply power; The target battery is charged according to the third capacity.

2. The method according to claim 1, characterized in that The determining the corresponding relationship between the state of charge and the open circuit voltage of the target battery includes: The target battery is controlled to discharge at a preset temperature to obtain the corresponding relationship between the state of charge and the open circuit voltage of the target battery at the preset temperature.

3. The method according to claim 1, characterized in that The target battery enters a static state, including at least one of the following: The charge and discharge current of the target battery is less than or equal to a preset current; The battery voltage change value of the target battery is less than or equal to a first threshold.

4. The method according to claim 1, characterized in that: When detecting that the target battery enters a static state, obtaining the static voltage of the target battery includes: When it is detected that the target battery enters the rest state, the rest voltage of the target battery is acquired within a preset voltage interval; wherein a change value of the rest voltage of the target battery within the preset voltage interval is greater than or equal to a second threshold.

5. The method according to claim 4, characterized in that The determining, according to the static voltage and the corresponding relationship, a first capacity of the target battery includes: Determining the discharge capacity of the target battery according to the corresponding relationship between the state of charge and the open circuit voltage of the target battery within the preset voltage range; The first capacity is determined according to the change value of the static voltage and the discharge capacity.

6. The method according to claim 1, characterized in that The method further comprises: When the third capacity is greater than or equal to a preset capacity, discharging the target battery; The step of charging the target battery according to the third capacity includes: When the battery voltage of the target battery reaches a preset voltage, the target battery is charged according to the third capacity; wherein the preset voltage is less than or equal to the open circuit voltage of the target battery.

7. The method according to claim 6, characterized in that When the third capacity is greater than or equal to a preset capacity, discharging the target battery includes: When the third capacity is greater than or equal to the preset capacity, determining a discharge current according to a battery state of the target battery; The target battery is discharged according to the discharge current.

8. A battery charging device, characterized in that: The device comprises: A first determination module, used to determine the corresponding relationship between the state of charge and the open circuit voltage of the target battery; An acquisition module, configured to acquire a static voltage of the target battery when detecting that the target battery enters a static state; A second determining module, configured to determine a first capacity of the target battery according to the static voltage and the corresponding relationship; a third determination module, configured to determine a third capacity according to the first capacity, the charged capacity of the target battery, and the second capacity; wherein the second capacity is the remaining capacity when the battery voltage of the target battery cannot supply power; A charging module is used to charge the target battery according to the third capacity.

9. The device according to claim 8, characterized in that The first determining module is further used for: The target battery is controlled to discharge at a preset temperature to obtain the corresponding relationship between the state of charge and the open circuit voltage of the target battery at the preset temperature.

10. The device according to claim 8, characterized in that The target battery enters a static state, including at least one of the following: The charge and discharge current of the target battery is less than or equal to a preset current; The battery voltage change value of the target battery is less than or equal to a first threshold.

11. The device according to claim 8, characterized in that The acquisition module is further used for: When it is detected that the target battery enters the rest state, the rest voltage of the target battery is acquired within a preset voltage interval; wherein a change value of the rest voltage of the target battery within the preset voltage interval is greater than or equal to a second threshold.

12. The device according to claim 11, characterized in that The second determining module is further used for: Determining the discharge capacity of the target battery according to the corresponding relationship between the state of charge and the open circuit voltage of the target battery within the preset voltage range; The first capacity is determined according to the change value of the static voltage and the discharge capacity.

13. The device according to claim 8, characterized in that The device also includes: a discharging module, configured to discharge the target battery when the third capacity is greater than or equal to a preset capacity; The charging module is also used for: When the battery voltage of the target battery reaches a preset voltage, the target battery is charged according to the third capacity; wherein the preset voltage is less than or equal to the open circuit voltage of the target battery.

14. The device according to claim 13, characterized in that The discharge module is also used for: When the third capacity is greater than or equal to the preset capacity, determining a discharge current according to a battery state of the target battery; The target battery is discharged according to the discharge current.

15. An electronic device, characterized in that: include: a memory storing computer-readable instructions; A processor, connected to the memory, is configured to implement the method according to any one of claims 1 to 7 by executing the computer-readable instructions.

16. A computer storage medium, characterized in that: The computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the method described in any one of claims 1 to 7 can be implemented.

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