CN112448052A - Battery charging control method and device - Google Patents
Battery charging control method and device Download PDFInfo
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- CN112448052A CN112448052A CN201910809347.3A CN201910809347A CN112448052A CN 112448052 A CN112448052 A CN 112448052A CN 201910809347 A CN201910809347 A CN 201910809347A CN 112448052 A CN112448052 A CN 112448052A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The disclosure relates to a battery charging control method and device. The method comprises the following steps: acquiring the current charge-discharge cycle number of the battery; determining a target current and a target voltage corresponding to the current charge-discharge cycle number according to a corresponding relation between the charge-discharge cycle number and the current and the voltage which are obtained in advance; charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using a target current; and when the voltage of the battery reaches the target voltage, performing constant-voltage charging on the battery by using the target voltage until the current of the battery is not greater than the preset charging cut-off current. This is disclosed through in the charge-discharge cycle process of battery, according to the charge-discharge cycle number of times of difference, constantly adjusts the charging voltage and the charging current of battery, makes the battery keep unanimous as far as possible at whole life-span in-process discharge capacity, prolongs the life of battery, improves user experience.
Description
Technical Field
The disclosure relates to the field of intelligent equipment, in particular to a battery charging control method and device.
Background
At present, mobile phones are used more and more frequently, after the mobile phones are used for a period of time, users can obviously feel that electric quantity is not durable in the initial stage, the normal use of the mobile phones is met by continuously frequent charging, and the use experience of the mobile phones of the users is seriously influenced.
Disclosure of Invention
In order to overcome the problems in the related art, embodiments of the present disclosure provide a battery charging control method and apparatus. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a battery charge control method including:
acquiring the current charge-discharge cycle number of the battery;
determining a target current and a target voltage corresponding to the current charge-discharge cycle number according to a corresponding relation between the charge-discharge cycle number and the current and the voltage which are obtained in advance;
charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: this technical scheme is through in the charge-discharge cycle in-process of battery, according to the charge-discharge cycle number of times of difference, constantly adjusts the charging voltage and the charging current of battery, makes the battery keep unanimous as far as possible at whole life-span in-process discharge capacity, prolongs the life of battery, improves user experience.
In one embodiment, the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and the voltage includes at least two different preset value ranges for the number of charge and discharge cycles.
In an embodiment, in the relationship between the pre-obtained number of charge and discharge cycles and the current and voltage, if a first number of charge and discharge cycles is smaller than a second number of charge and discharge cycles and the first number of charge and discharge cycles and the second number of charge and discharge cycles are within different preset value ranges, a target voltage corresponding to the first number of charge and discharge cycles is smaller than a target voltage corresponding to the second number of charge and discharge cycles, and a target current corresponding to the first number of charge and discharge cycles is smaller than a target current corresponding to the second number of charge and discharge cycles.
In one embodiment, in the correspondence between the charge and discharge cycle number obtained in advance and the current and voltage, a ratio of a discharge capacity of the battery corresponding to a maximum value of the charge and discharge cycle number to an initial discharge capacity of the battery is greater than a preset threshold.
According to a second aspect of the embodiments of the present disclosure, there is provided a battery charge control device including:
the acquisition module is used for acquiring the current charge and discharge cycle times of the battery;
the determining module is used for determining target current and target voltage corresponding to the current charging and discharging cycle number according to the corresponding relation between the charging and discharging cycle number and the current and voltage which are obtained in advance;
the control module is used for charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
In one embodiment, the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and the voltage includes at least two different preset value ranges for the number of charge and discharge cycles.
In an embodiment, in the relationship between the pre-obtained number of charge and discharge cycles and the current and voltage, if a first number of charge and discharge cycles is smaller than a second number of charge and discharge cycles and the first number of charge and discharge cycles and the second number of charge and discharge cycles are within different preset value ranges, a target voltage corresponding to the first number of charge and discharge cycles is smaller than a target voltage corresponding to the second number of charge and discharge cycles, and a target current corresponding to the first number of charge and discharge cycles is smaller than a target current corresponding to the second number of charge and discharge cycles.
In one embodiment, in the correspondence between the charge and discharge cycle number obtained in advance and the current and voltage, a ratio of a discharge capacity of the battery corresponding to a maximum value of the charge and discharge cycle number to an initial discharge capacity of the battery is greater than a preset threshold.
According to a third aspect of the embodiments of the present disclosure, there is provided a battery charge control apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the current charge-discharge cycle number of the battery;
determining a target current and a target voltage corresponding to the current charge-discharge cycle number according to a corresponding relation between the charge-discharge cycle number and the current and the voltage which are obtained in advance;
charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method embodiments of any one of the above-mentioned first aspects.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
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 disclosure.
Fig. 1 is a flow chart illustrating a battery charge control method according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating a battery charge control method according to an exemplary embodiment.
Fig. 3 is a block diagram illustrating a battery charge control apparatus according to an exemplary embodiment.
Fig. 4 is a block diagram illustrating a battery charge control apparatus according to an exemplary embodiment.
Fig. 5 is a block diagram illustrating an apparatus according to an example embodiment.
FIG. 6 is a block diagram illustrating an apparatus according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
In the related technology, the capacity of the mobile phone battery is gradually reduced and degraded along with the increase of the charging and discharging times in the use process, so that a user obviously feels that the electric quantity is less and less durable, the service life of the battery is shortened, and the user experience is influenced.
In order to solve the above problem, an embodiment of the present disclosure provides a battery charging control method, including: acquiring the current charge-discharge cycle number of the battery; determining a target current and a target voltage corresponding to the current charge-discharge cycle number according to a corresponding relation between the charge-discharge cycle number and the current and the voltage which are obtained in advance; charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current. According to the charging and discharging cycle process of the battery, the charging voltage and the charging current of the battery are continuously adjusted according to different charging and discharging cycle times, so that the discharging capacity of the battery is kept consistent as much as possible in the whole service life process, the service life of the battery is prolonged, and the use experience of a user is improved.
Based on the above analysis, method embodiments of the present disclosure are described below.
FIG. 1 is a flow chart illustrating a battery charge control method according to an exemplary embodiment; the execution main body of the method can be a terminal; as shown in fig. 1, the method comprises the following steps 101-103:
in step 101, the current number of charge and discharge cycles of the battery is acquired.
By way of example, the terminal referred to in the present disclosure may be, for example, a smart phone, a computer, or a vehicle-mounted mobile terminal. The terminal at least comprises a central controller and a battery, and the terminal can detect the current and the voltage of the battery through the central controller, judge and record the charge-discharge cycle number of the battery.
In step 102, a target current and a target voltage corresponding to the current charge-discharge cycle count are determined according to a correspondence relationship between the charge-discharge cycle count and the current and voltage, which is acquired in advance.
For example, the correspondence relationship between the pre-obtained number of charge and discharge cycles and the current and the voltage includes at least two different preset value ranges for the number of charge and discharge cycles. In the corresponding relation between the number of charge and discharge cycles and the current and voltage, the number of charge and discharge cycles is divided into at least two different preset value ranges.
For example, the correspondence between the number of charge and discharge cycles and the current and voltage includes: different preset value ranges correspond to the current and the voltage. Optionally, in the correspondence between the charge-discharge cycle number and the current and the voltage, which is obtained in advance, a ratio of a battery discharge capacity corresponding to the maximum value of the charge-discharge cycle number to an initial discharge capacity of the battery is greater than a preset threshold.
For example, the maximum value of the number of charge and discharge cycles can be obtained through testing, for example, when the number of charge and discharge cycles of the battery is N, the discharge capacity/initial discharge capacity of the nth battery is greater than or equal to P, where 1 is greater than or equal to P > 0, and P is a preset value, and is set by a user or an empirical value is adopted.
In step 103, charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using a target current; and when the voltage of the battery reaches the target voltage, performing constant-voltage charging on the battery by using the target voltage until the current of the battery is not greater than the preset charging cut-off current.
For example, the preset first charging current is a preset upper charging limit current; the preset first charging voltage is a preset upper charging limit voltage. In the pre-obtained correspondence relationship between the charge and discharge cycle number and the current and the voltage, if a first charge and discharge cycle number is smaller than a second charge and discharge cycle number and the first charge and discharge cycle number and the second charge and discharge cycle number are in different preset numerical ranges, a target voltage corresponding to the first charge and discharge cycle number is smaller than a target voltage corresponding to the second charge and discharge cycle number, and a target current corresponding to the first charge and discharge cycle number is smaller than a target current corresponding to the second charge and discharge cycle number. By always performing the shallow charging in the early stage, the life of the battery can be increased.
The technical scheme provided by the embodiment of the disclosure continuously adjusts the charging voltage and the charging current of the battery according to different charging and discharging cycle times in the charging and discharging cycle process of the battery, so that the discharging capacity of the battery is kept consistent as much as possible in the whole service life process, the service life of the battery is prolonged, and the use experience of a user is improved.
FIG. 2 is a flow chart illustrating a battery charge control method according to an exemplary embodiment; as shown in fig. 2, on the basis of the embodiment shown in fig. 1, the battery charging control method according to the present disclosure includes the following steps 201-:
in step 201, the terminal acquires the current charge and discharge cycle number of the battery.
In step 202, the terminal determines a target preset value range corresponding to the current charge-discharge cycle number, and a target current and a target voltage corresponding to the target preset value range according to a pre-obtained correspondence relationship between the charge-discharge cycle number and the current and voltage.
For example, the correspondence relationship between the number of charge and discharge cycles and the current and voltage obtained in advance includes at least two different preset value ranges for the number of charge and discharge cycles, for example, a first preset value range and a second preset value range for the number of charge and discharge cycles; assuming that the first predetermined numerical range is smaller than the second predetermined numerical range, the target voltage corresponding to the first predetermined numerical range is smaller than the target voltage corresponding to the second predetermined numerical range, and the target current corresponding to the first predetermined numerical range is smaller than the target current corresponding to the second predetermined numerical range.
For example, the maximum value N of the number of charge and discharge cycles is divided into at least two different predetermined value ranges according to the number, wherein the predetermined value ranges are [0, N1], (N1, N2] … (Nt, N ]; each predetermined value range has a current and a voltage corresponding to the predetermined value range [0, N1], for example, the predetermined value range [0, N1] corresponds to the current I1 and the voltage V1, the predetermined value range (N1, N2] corresponds to the current I2 and the voltage V2, the predetermined value range (Nt, N ] corresponds to the current It and the voltage Vt, 0 < N1 < N2 < N, V1 < V2 < Vt < Vu, and It < Iu.
Assuming that the current charge-discharge cycle number is X, when X is more than or equal to 0 and less than or equal to N1, charging the battery by using a charging current Iu, when a voltage Vu is reached, reducing the current to I1, continuing to charge the battery, when a voltage V1 is reached, performing constant-voltage charging, and stopping the current to I0; and when the voltage N1 is more than X and less than or equal to N2, the battery is charged by using the charging current Iu, when the voltage Vu is reached, the current is reduced to I2, the battery is continuously charged, when the voltage V2 is reached, the constant-voltage charging is carried out, and the cut-off current is I0.
In step 203, the terminal charges the battery with a preset first charging current.
In step 204, when the voltage of the battery reaches a preset first charging voltage, the terminal reduces the charging current to a target current, and the battery is continuously charged by using the target current.
In step 205, when the voltage of the battery reaches the target voltage, the terminal performs constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cutoff current.
The technical scheme that this disclosed embodiment provided, through in the charge-discharge cycle process at the battery, according to the charge-discharge cycle number of times of difference, constantly adjust the charging voltage and the charging current of battery, make the battery keep unanimous as far as possible at whole life-span in-process discharge capacity, through carrying out shallow charging always in earlier stage, can increase the life-span of battery, improve user's use and experience.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.
FIG. 3 is a block diagram illustrating a battery charge control device according to an exemplary embodiment; as shown in fig. 3, the battery charge control apparatus includes: an obtaining module 301, a determining module 302 and a controlling module 303, wherein:
the obtaining module 301 is configured to obtain a current charge and discharge cycle number of the battery;
the determining module 302 is configured to determine a target current and a target voltage corresponding to the current charge and discharge cycle number according to a pre-acquired correspondence relationship between the charge and discharge cycle number and the current and voltage;
the control module 303 is configured to charge the battery using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
The device provided by the embodiment of the disclosure can be used for executing the technical scheme of the embodiment shown in fig. 1, and the execution mode and the beneficial effect are similar, and are not described again here.
In a possible implementation manner, the pre-obtained correspondence between the number of charge and discharge cycles and the current and the voltage includes at least two different preset value ranges for the number of charge and discharge cycles.
In a possible implementation manner, in the correspondence relationship between the charge and discharge cycle number and the current and the voltage, if a first charge and discharge cycle number is smaller than a second charge and discharge cycle number and the first charge and discharge cycle number and the second charge and discharge cycle number are within different preset numerical ranges, a target voltage corresponding to the first charge and discharge cycle number is smaller than a target voltage corresponding to the second charge and discharge cycle number, and a target current corresponding to the first charge and discharge cycle number is smaller than a target current corresponding to the second charge and discharge cycle number.
In a possible implementation manner, in the correspondence between the charge-discharge cycle number and the current and the voltage obtained in advance, a ratio of a battery discharge capacity corresponding to a maximum value of the charge-discharge cycle number to an initial discharge capacity of the battery is greater than a preset threshold.
Fig. 4 is a block diagram illustrating a battery charge control apparatus 400 according to an exemplary embodiment, the battery charge control apparatus 400 being applied to a terminal, the battery charge control apparatus 400 including:
a processor 401;
a memory 402 for storing processor-executable instructions;
wherein the processor 401 is configured to:
acquiring the current charge-discharge cycle number of the battery;
determining a target current and a target voltage corresponding to the current charge-discharge cycle number according to a corresponding relation between the charge-discharge cycle number and the current and the voltage which are obtained in advance;
charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
In one embodiment, the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and the voltage includes at least two different preset value ranges for the number of charge and discharge cycles.
In an embodiment, in the relationship between the pre-obtained number of charge and discharge cycles and the current and voltage, if a first number of charge and discharge cycles is smaller than a second number of charge and discharge cycles and the first number of charge and discharge cycles and the second number of charge and discharge cycles are within different preset value ranges, a target voltage corresponding to the first number of charge and discharge cycles is smaller than a target voltage corresponding to the second number of charge and discharge cycles, and a target current corresponding to the first number of charge and discharge cycles is smaller than a target current corresponding to the second number of charge and discharge cycles.
In one embodiment, in the correspondence between the charge and discharge cycle number obtained in advance and the current and voltage, a ratio of a discharge capacity of the battery corresponding to a maximum value of the charge and discharge cycle number to an initial discharge capacity of the battery is greater than a preset threshold.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
FIG. 5 is a block diagram illustrating an apparatus in accordance with an example embodiment. For example, the apparatus 500 may be a terminal. Referring to fig. 5, the apparatus 500 may include one or more of the following components: processing component 502, memory 504, power component 506, multimedia component 508, audio component 510, input/output (I/O) interface 512, sensor component 514, and communication component 516.
The processing component 502 is generally configured to control overall operation of the apparatus 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 502 may include one or more processors 520 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 502 can include one or more modules that facilitate interaction between the processing component 502 and other components. For example, the processing component 502 can include a multimedia module to facilitate interaction between the multimedia component 508 and the processing component 502.
The memory 504 is configured to store various types of data to support operations at the apparatus 500. Examples of such data include instructions for any application or method operating on device 500, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 504 may be implemented by any type or combination of volatile or non-volatile memory devices 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 or optical disks.
The power supply component 506 provides power to the various components of the device 500. The power components 506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the apparatus 500.
The multimedia component 508 includes a screen that provides an output interface between the device 500 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 an input signal from a 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 boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 508 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 500 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 510 is configured to output and/or input audio signals. For example, audio component 510 includes a Microphone (MIC) configured to receive external audio signals when apparatus 500 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 504 or transmitted via the communication component 516. In some embodiments, audio component 510 further includes a speaker for outputting audio signals.
The I/O interface 512 provides an interface between the processing component 502 and peripheral interface modules, which may be 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.
The sensor assembly 514 includes one or more sensors for providing various aspects of status assessment for the device 500. For example, the sensor assembly 514 may detect an open/closed state of the apparatus 500, the relative positioning of the components, such as a display and keypad of the apparatus 500, the sensor assembly 514 may also detect a change in the position of the apparatus 500 or a component of the apparatus 500, the presence or absence of user contact with the apparatus 500, orientation or acceleration/deceleration of the apparatus 500, and a change in the temperature of the apparatus 500. The sensor assembly 514 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 514 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 516 is configured to facilitate communication between the apparatus 500 and other devices in a wired or wireless manner. The apparatus 500 may 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 516 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 516 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 500 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, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 504 comprising instructions, executable by the processor 520 of the apparatus 500 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
FIG. 6 is a block diagram illustrating an apparatus in accordance with an example embodiment. For example, the apparatus 600 may be provided as a server. The apparatus 600 comprises a processing component 602 further comprising one or more processors, and memory resources, represented by memory 603, for storing instructions, e.g. applications, executable by the processing component 602. The application stored in memory 603 may include one or more modules that each correspond to a set of instructions. Further, the processing component 602 is configured to execute instructions to perform the above-described methods.
The apparatus 600 may also include a power component 606 configured to perform power management of the apparatus 600, a wired or wireless network interface 605 configured to connect the apparatus 600 to a network, and an input/output (I/O) interface 608. The apparatus 600 may operate based on an operating system, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like, stored in the memory 603.
A non-transitory computer readable storage medium having instructions therein, which when executed by a processor of apparatus 500 or apparatus 600, enable apparatus 500 or apparatus 600 to perform a battery charge control method comprising:
acquiring the current charge-discharge cycle number of the battery;
determining a target current and a target voltage corresponding to the current charge-discharge cycle number according to a corresponding relation between the charge-discharge cycle number and the current and the voltage which are obtained in advance;
charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
In one embodiment, the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and the voltage includes at least two different preset value ranges for the number of charge and discharge cycles.
In an embodiment, in the relationship between the pre-obtained number of charge and discharge cycles and the current and voltage, if a first number of charge and discharge cycles is smaller than a second number of charge and discharge cycles and the first number of charge and discharge cycles and the second number of charge and discharge cycles are within different preset value ranges, a target voltage corresponding to the first number of charge and discharge cycles is smaller than a target voltage corresponding to the second number of charge and discharge cycles, and a target current corresponding to the first number of charge and discharge cycles is smaller than a target current corresponding to the second number of charge and discharge cycles.
In one embodiment, in the correspondence between the charge and discharge cycle number obtained in advance and the current and voltage, a ratio of a discharge capacity of the battery corresponding to a maximum value of the charge and discharge cycle number to an initial discharge capacity of the battery is greater than a preset threshold.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements 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.
Claims (10)
1. A battery charge control method, comprising:
acquiring the current charge-discharge cycle number of the battery;
determining a target current and a target voltage corresponding to the current charge-discharge cycle number according to a corresponding relation between the charge-discharge cycle number and the current and the voltage which are obtained in advance;
charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
2. The method according to claim 1, wherein the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and voltage comprises at least two different preset value ranges for the number of charge and discharge cycles.
3. The method according to claim 1, wherein in the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and voltage, if a first number of charge and discharge cycles is smaller than a second number of charge and discharge cycles and the first number of charge and discharge cycles and the second number of charge and discharge cycles are within different preset numerical ranges, the target voltage corresponding to the first number of charge and discharge cycles is smaller than the target voltage corresponding to the second number of charge and discharge cycles, and the target current corresponding to the first number of charge and discharge cycles is smaller than the target current corresponding to the second number of charge and discharge cycles.
4. The method according to claim 1, wherein in the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and voltage, a ratio of a discharge capacity of the battery corresponding to a maximum value of the number of charge and discharge cycles to an initial discharge capacity of the battery is greater than a preset threshold.
5. A battery charge control device, comprising:
the acquisition module is used for acquiring the current charge and discharge cycle times of the battery;
the determining module is used for determining target current and target voltage corresponding to the current charging and discharging cycle number according to the corresponding relation between the charging and discharging cycle number and the current and voltage which are obtained in advance;
the control module is used for charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
6. The apparatus according to claim 5, wherein the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and voltage comprises at least two different preset value ranges for the number of charge and discharge cycles.
7. The apparatus according to claim 5, wherein in the pre-obtained correspondence relationship between the number of charge/discharge cycles and the current and voltage, if a first number of charge/discharge cycles is smaller than a second number of charge/discharge cycles and the first number of charge/discharge cycles and the second number of charge/discharge cycles are within different predetermined numerical ranges, the target voltage corresponding to the first number of charge/discharge cycles is smaller than the target voltage corresponding to the second number of charge/discharge cycles, and the target current corresponding to the first number of charge/discharge cycles is smaller than the target current corresponding to the second number of charge/discharge cycles.
8. The apparatus according to claim 5, wherein in the pre-obtained correspondence relationship between the number of charge and discharge cycles and the current and voltage, a ratio of a discharge capacity of the battery corresponding to a maximum value of the number of charge and discharge cycles to an initial discharge capacity of the battery is greater than a preset threshold.
9. A battery charge control device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the current charge-discharge cycle number of the battery;
determining a target current and a target voltage corresponding to the current charge-discharge cycle number according to a corresponding relation between the charge-discharge cycle number and the current and the voltage which are obtained in advance;
charging the battery by using a preset first charging current; when the voltage of the battery reaches a preset first charging voltage, charging the battery by using the target current; and when the voltage of the battery reaches the target voltage, performing constant voltage charging on the battery by using the target voltage until the current of the battery is not greater than a preset charging cut-off current.
10. A computer-readable storage medium having stored thereon computer instructions, which, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 4.
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