CN112803510B - Charging control method and device, electronic equipment and computer storage medium - Google Patents
Charging control method and device, electronic equipment and computer storage medium Download PDFInfo
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- CN112803510B CN112803510B CN201911108126.XA CN201911108126A CN112803510B CN 112803510 B CN112803510 B CN 112803510B CN 201911108126 A CN201911108126 A CN 201911108126A CN 112803510 B CN112803510 B CN 112803510B
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- 238000007600 charging Methods 0.000 title claims abstract description 518
- 238000000034 method Methods 0.000 title claims abstract description 74
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 139
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 135
- 230000009467 reduction Effects 0.000 claims abstract description 107
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 65
- 230000008569 process Effects 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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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
Abstract
The present disclosure provides a charge control method and apparatus, an electronic device, and a computer storage medium. The charging control method comprises the following steps: acquiring charging current of the electronic equipment in a current charging stage; when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current, setting a lithium reduction stage corresponding to the current charging stage in a charging process; and when the lithium reduction stage is entered, regulating the state of the battery of the electronic equipment so as to reduce the quantity of lithium ions which are not inserted into the battery cathode on the surface of the battery cathode of the electronic equipment. The service life of the battery of the electronic equipment can be prolonged.
Description
Technical Field
The disclosure relates to the field of electronic devices, and in particular, to a charging control method and device, an electronic device and a computer storage medium.
Background
Currently, users pay more and more attention to the charging speed of electronic devices. Therefore, most manufacturers increase the charging speed by increasing the charging current. However, charging the battery with a large charging current for a long period of time may cause a decrease in the service life of the battery.
The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
An object of the present disclosure is to provide a charging control method capable of prolonging the service life of a battery of an electronic device.
In order to solve the technical problems, the present disclosure adopts the following technical scheme:
according to an aspect of the present disclosure, there is provided a charge control method including:
acquiring charging current of the electronic equipment in a current charging stage;
when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current, setting a lithium reduction stage corresponding to the current charging stage in a charging process;
and when the lithium reduction stage is entered, regulating the state of the battery of the electronic equipment so as to reduce the quantity of lithium ions which are not inserted into the battery cathode on the surface of the battery cathode of the electronic equipment.
According to an aspect of the present disclosure, there is provided a charge control device 30 including:
the charging current acquisition module is used for acquiring the charging current of the electronic equipment in the current charging stage;
The lithium reduction stage setting module is used for setting a lithium reduction stage corresponding to the current charging stage in a charging process when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current;
and the adjusting module is used for adjusting the state of the battery of the electronic equipment when the lithium reduction stage is entered, so as to reduce the quantity of lithium ions which are not inserted into the battery cathode on the surface of the battery cathode of the electronic equipment.
According to one aspect of the present disclosure, there is provided an electronic device including:
a storage unit storing a charge control program;
and a processing unit for executing the steps of the charge control method according to claim when the charge control program is executed.
According to an aspect of the present disclosure, there is provided a computer storage medium storing a charge control program which when executed by at least one processor implements the steps of the charge control method.
According to the technical scheme, when the charging current of the electronic equipment is larger than or equal to the preset current, the lithium-ion-discharging stage is inserted corresponding to the current charging stage, so that future lithium ions which are inserted into the battery cathode can be timely inserted into the battery cathode in the lithium-discharging stage; the lithium ions are prevented from further piling up to form irreversible lithium metal simple substance caused by continuous charging with high current, so that the performance and the service life of the battery are influenced. Therefore, the lithium ion battery negative electrode stacking method can reduce the stacking amount of lithium ions in the battery negative electrode in the rapid charging process so as to reduce the occurrence probability of lithium precipitation.
In addition, when the charging current is large, the battery can generate serious heat; the heat generated by the battery in the high-current charging process can be reduced through the inserted lithium reduction stage, so that the temperature of the battery can be reduced, and the charging safety of the battery is ensured; at the same time, the lower battery temperature is also beneficial to prolonging the duration of the subsequent high-current charging.
Therefore, the method and the device can reduce the occurrence probability of the lithium precipitation phenomenon of the battery cathode, and prolong the service life of the battery.
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 above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.
FIG. 1 is a block diagram of an electronic device, shown according to one example;
FIG. 2 is a flowchart illustrating a charge control method according to an exemplary embodiment;
fig. 3 is a flowchart illustrating a charge control method according to another exemplary embodiment;
FIG. 4 is a schematic diagram of a charging process corresponding to FIG. 3;
fig. 5 is a flowchart illustrating a charge control method according to another exemplary embodiment;
FIG. 6 is a partial schematic view of a charging process corresponding to FIG. 5;
fig. 7 is a block diagram showing a structure of a charge control device according to an exemplary embodiment;
fig. 8 is a system architecture diagram of an electronic device, according to an example.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless explicitly specified otherwise.
Preferred embodiments of the present disclosure are further elaborated below in conjunction with the drawings of the present specification.
The present disclosure proposes an electronic device, which may be an intelligent terminal, a mobile terminal device provided with a battery-powered system. The electronic device includes, but is not limited to, a device arranged to receive/transmit communication signals via a wireline connection, such as via a public-switched telephone network (public switched telephone network, PSTN), a digital subscriber line (digital subscriber line, DSL), a digital cable, a direct cable connection, and/or another data connection/network and/or via a wireless interface, for example, to a cellular network, a wireless local area network (wireless local area network, WLAN), a digital television network such as a digital video broadcasting-handheld (digital video broadcasting handheld, DVB-H) network, a satellite network, an amplitude modulation-frequency modulation (amplitude demodulation-frequency modulation, AM-FM) broadcast transmitter, and/or another communication terminal. A communication terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal," wireless terminal, "and/or" smart terminal. Examples of smart terminals include, but are not limited to, satellites or cellular telephones; a personal communications system (personal communication system, PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; personal digital assistants (Personal Digital Assistant, PDA) that may include a radiotelephone, pager, internet/intranet access, web browser, organizer, calendar, and/or a global positioning system (global positioning system, GPS) receiver; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. In addition, the terminal can further comprise, but is not limited to, chargeable electronic devices with charging functions, such as electronic book readers, intelligent wearable devices, mobile power sources (such as charger, travel charger), electronic cigarettes, wireless mice, wireless keyboards, wireless headphones, bluetooth sound boxes and the like.
A related adapter for charging an electronic device in the related art is described below.
In the related art, the adapter may operate in a constant voltage mode, and the output voltage thereof is maintained substantially constant, such as 5V, 9V, 12V, 20V, or the like. The output current can be a pulsating direct current (direction is unchanged, amplitude value changes with time), an alternating current (both direction and amplitude value change with time) or a constant direct current (both direction and amplitude value do not change with time). The voltage output by the associated adapter is not suitable for direct loading to the two ends of the battery, but is required to be converted by a conversion circuit in the electronic device to obtain the charging voltage and/or the charging current expected by the battery in the electronic device.
The adapter may also operate in a voltage-following manner. The adapter and the electronic equipment to be charged are in bidirectional communication, and the adapter adjusts the voltage and the current output by the adapter according to the charging voltage and the charging current required by the feedback of the electronic equipment, so that the output voltage and the output current can be directly loaded on a battery of the electronic equipment to charge the battery, and the electronic equipment does not need to readjust the charging voltage and the charging current again.
The following describes the currently prevailing Constant Current Constant Voltage (CCCV) charging mode, which is applicable to both wired and wireless charging.
The charging process of the battery may include: a trickle charge phase (or mode), a constant current charge phase (or mode), a constant voltage charge phase (or mode), and a supplemental charge phase (or mode).
In the trickle charge phase, the fully discharged battery is pre-charged (i.e., restorative charge), the trickle charge current is typically one tenth of the constant current charge current, and when the battery voltage rises above the trickle charge voltage threshold, the charge current is increased to enter the constant current charge phase.
In the constant current charging stage, the battery is charged with a constant current, the charging voltage rises rapidly, and when the charging voltage reaches the charging voltage threshold expected by the battery, the constant voltage charging stage is shifted. The constant current is typically a nominal charge rate current, such as a high rate 3C current, where C is the battery capacity. Assuming that the battery capacity is 1700mAh, the constant current is 3×1700ma=5.1a.
In the constant voltage charging phase, the battery is charged at a constant voltage, the charging current gradually decreases, and when the charging current decreases to a set current threshold, the battery is fully charged. In CCCV charging mode, the current threshold is typically set to 0.01C, where C is the battery capacity. Still assuming a battery capacity of 1700mAh, the current threshold is 0.01 x 1700ma=17ma.
When the battery is fully charged, partial current loss occurs due to the self-discharge effect of the battery, and the charging stage is switched to the supplementary charging stage. During the recharge phase, the charge current is small, simply to ensure that the battery is in a full charge state.
It should be noted that the constant current charging phase does not require the charging current to be kept completely constant, and may, for example, refer to that the peak value or the average value of the charging current remains constant over a period of time. In practice, the constant current charging stage may employ a segmented constant current charging (Multi-stage constant current charging) approach.
The segmented constant current charging may have M constant current phases (M is an integer not less than 2), the segmented constant current charging starts the first phase charging with a predetermined charging current, the M constant current phases of the segmented constant current charging are sequentially executed from the first phase to the mth phase, and when a previous one of the constant current phases is shifted to a next constant current phase, the current magnitude may become small; when the battery voltage reaches the charge termination voltage threshold, the previous constant current stage of the constant current stages is shifted to the next constant current stage. The current conversion process between two adjacent constant current stages can be gradual, or can be stepwise jump.
An exemplary structure of the electronic device of the present disclosure is described below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an electronic device of the present disclosure. The electronic device 10 may include a rear housing 11, a display 12, a circuit board, and a battery. It should be noted that the electronic device 10 is not limited to include the above. Wherein the rear housing 11 may form an outer contour of the electronic device 10. In some embodiments, the rear housing 11 may be a metal rear housing, such as a metal of magnesium alloy, stainless steel, or the like. It should be noted that the material of the rear case 11 in the embodiment of the present application is not limited thereto, and other manners may be adopted, for example: the rear case 11 may be a plastic rear case, a ceramic rear case, a glass rear case, or the like.
Wherein the display screen 12 is mounted in the rear housing 11. The display screen 12 is electrically connected to the circuit board to form a display surface of the electronic device. In some embodiments, the display surface of the electronic device 10 may be provided with a non-display area, such as: the top and/or bottom of the electronic device 10 may form a non-display area, i.e., the electronic device 10 forms a non-display area on the upper portion and/or the lower portion of the display 12, and the electronic device 10 may mount a camera, a receiver, or the like on the non-display area. It should be noted that the display surface of the electronic device 10 may not be provided with a non-display area, that is, the display 12 may be a full screen. The display screen may be laid over the entire display surface of the electronic device 10 so that the display screen may be displayed full-screen on the display surface of the electronic device 10.
The display 12 may be one or a combination of several of a liquid crystal display, an organic light emitting diode display, an electronic ink display, a plasma display, and a display using other display technologies. The display 12 may include an array of touch sensors (i.e., the display 12 may be a touch-sensitive display). The touch sensor may be a capacitive touch sensor formed of an array of transparent touch sensor electrodes, such as Indium Tin Oxide (ITO) electrodes, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, etc., as embodiments of the application are not limited.
In some embodiments, the circuit board may be secured within the rear housing 11. Specifically, the circuit board may be screwed to the rear case 11 by a screw, or may be snap-fitted to the rear case 11 by a snap-fit method. It should be noted that the manner in which the circuit board is specifically fixed to the rear case 11 according to the embodiment of the present application is not limited thereto, and may be other manners, such as a manner of fixing together by a buckle and a screw. Wherein a battery is mounted in the rear case 11, the battery 11 is electrically connected with the circuit board to supply power to the electronic device 10. The rear case 11 may serve as a battery cover of the battery. The rear case 11 covers the battery to protect the battery, reducing damage to the battery due to collision, drop, etc. of the electronic device 10.
The electronic device 10 may include input-output circuitry, which may be disposed on a circuit board. The input-output circuitry may be used to enable the electronic device 10 to input and output data, i.e., to allow the electronic device 10 to receive data from an external device and also to allow the electronic device 10 to output data from the electronic device 10 to an external device. The input-output circuit may further comprise a sensor. The sensors may include ambient light sensors, proximity sensors based on light and capacitance, touch sensors (e.g., based on light touch sensors and/or capacitive touch sensors, where the touch sensors may be part of a touch display screen or may be used independently as a touch sensor structure), acceleration sensors, temperature sensors, and other sensors, among others.
The electronic device 10 also includes a charging circuit. The charging circuit may charge a battery of the electronic device 10. The charging circuit may be used to further adjust the charging voltage and/or charging current input from the adapter to meet the charging requirements of the battery.
The electronic device 10 is provided with a charging interface, which may be, for example, a USB 2.0 interface, a Micro USB interface or a USB TYPE-C interface. In some embodiments, the charging interface may also be a lighting interface, or any other type of parallel or serial port that can be used for charging. The charging interface is connected with the adapter through a data line, the adapter acquires electric energy from commercial power, and the electric energy is transmitted to the charging circuit through the data line transmission and the charging interface after voltage conversion, so that the electric energy can be charged into the battery core to be charged through the charging circuit.
The current charging method commonly used in lithium batteries is a constant voltage charging method at a certain potential after continuously charging to the certain potential by a preset constant current. During charging, li+ is continuously intercalated from the positive electrode to the negative electrode, and once the lithium ion intercalation speed of the surface of the negative electrode exceeds the capacity of the negative electrode, lithium ions remain on the surface of the negative electrode. As the potential of the anode surface is continuously reduced, lithium metal simple substance is generated once the anode potential reaches 0V, i.e., the potential generated by lithium metal. The lithium simple substance is deposited on the surface of the negative electrode of the battery so as to influence the normal charge and discharge performance of the battery, thereby damaging the service life of the battery.
In order to solve the problem, the present disclosure proposes a charging control method to reduce the phenomenon of lithium precipitation caused by an excessive charging current during charging, thereby prolonging the service life of the battery. Fig. 2 shows a flowchart of a charge control method provided by an exemplary embodiment of the present disclosure. This embodiment is exemplified by the application of the method to the electronic device 10 shown in fig. 1. The method comprises the following steps:
step S21, in the current charging phase, acquiring a charging current of the electronic device 10;
in one embodiment, the charging phase corresponds to a charging mode. Generally, the electronic device 10 is charged in a specific charging mode, such as a constant current constant voltage charging mode, a segmented constant current charging mode, a pulse charging mode, and the like. The charging mode generally comprises a number of successive charging phases. For example, the constant-current constant-voltage charging mode at least includes a constant-current charging stage and a constant-voltage charging stage. Each charging current gear in the segmented constant current charging mode corresponds to a charging phase. Each charging gear may correspond to a charging phase corresponding to PD charging.
The charging current may be constant during each charging phase. So that in each charging phase, at least one charging current is taken. The charging current value may be acquired at any time during the charging phase.
The charging current may not be constant during each charging phase. The charging current obtained here may be the average value of the current in the charging phase, or the minimum charging current value. The charging current of the battery may be obtained at a fixed sampling frequency, and at the end of the current charging phase, the average value of the current in the charging phase, or the minimum charging current value, may be calculated.
In another embodiment, the charging stage is independent of the concept of the charging mode, and may be a certain section of constant current charging divided in the whole charging process, where the charging current and the charging duration of the charging stage may be set. The current charging phase can be understood as the current charging period.
The battery protection board in the electronic device 10 generally has an electricity meter thereon, and thus the charging current of the battery can be detected by the electricity meter. In another embodiment a hall sensor may also be used to detect the charging current. The detected current values may be transmitted to a processing unit for summation, averaging, etc. calculations.
Step S22, when the charging current of the electronic device 10 in the current charging phase is greater than or equal to the preset current, setting a lithium reduction phase corresponding to the current charging phase in a charging process 24;
the preset current value may be set by the manufacturer and stored in the electronic device 10 at the time of shipment of the electronic device 10. The electronic device 10 may be set by the user after leaving the factory. It can be understood that the smaller the preset current value is, the more lithium reduction stages are added, so that the lithium separation condition of the battery cathode can be treated in time, and the service life of the battery can be prolonged better.
In one embodiment, the predetermined current value may be selected to be 2/3 of the battery rate. For example, the battery capacity is 3000mAh, and the preset current is selected to be 2000mAh.
When the charging current is too high, the speed of the lithium ion intercalation anode is not fast enough, and partial lithium precipitation occurs on the surface of the anode, but the part is likely to be only in the initial stage of lithium precipitation, and a large amount of lithium ions which are still piled up are not formed, so that the lithium ion intercalation anode has the advantages of reducing the lithium precipitation amount of the battery anode by inserting a lithium precipitation stage to relieve the rapid charging process and avoiding the lithium ions which are not intercalated into the anode from forming the lithium element, and simultaneously, in the lithium precipitation stage, the lithium ions which are left in the early rapid charging stage and are not intercalated into the battery anode are time intercalated into the battery anode, so that the lithium ion quantity which is not intercalated into the surface of the battery anode of the electronic equipment 10 is reduced.
The lithium-down phase is inserted into the original charging process, and it is understood that in most cases, the charging process arranges each charging phase in a predetermined order. The lithium reduction stage is interposed between these charging stages or in a charging stage as required.
In the following examples, the manner of setting the lithium reduction stage will be described.
Please refer to fig. 3. In one embodiment, when the charging current of the electronic device 10 in the present charging phase is greater than or equal to the preset current, setting the lithium-down phase corresponding to the present charging phase in the charging process 24 includes:
in step S221, when the charging current of the electronic device 10 is greater than or equal to the preset current, the lithium reduction stage is set after the current charging stage is finished.
Specifically, when it is detected that the current of the electronic device 10 is greater than or equal to the preset charging current in the current charging phase, it is indicated that the charging current is greater at this time, and it is likely that a large amount or part of lithium ions will still be inserted into the battery negative electrode in the future, so that the lithium intercalation phase is inserted after the current charging phase. In the lithium intercalation stage, lithium ions which are generated in the previous charging stage and are not yet inserted into the battery cathode can enter the battery cathode for a certain time, so that the accumulation of the lithium ions on the surface of the battery cathode is avoided, and the occurrence of the phenomenon of lithium precipitation is reduced or avoided.
In this regard, there are two corresponding embodiments in accordance with the previous explanation of the charging phase.
In one embodiment, the charging phase is a charging phase specified in the charging mode. Specifically, the charging mode of the electronic device 10 includes at least two consecutive charging phases;
step S22, when the charging current of the electronic device 10 in the current charging phase is greater than or equal to the preset current, sets a lithium-reducing phase corresponding to the current charging phase in the charging process 24, including:
in step S222, when the charging current of the electronic device 10 is greater than or equal to the preset current, the lithium reduction stage is set after the current charging stage is ended and between the next charging stages.
Please refer to fig. 4. In a charging process 24, at least a first charging stage 241, a second charging stage 242, and a third charging stage 243 are included. When the charging current of the first charging stage 241 is greater than the preset current, the lithium-reducing stage 25 is set after the first charging stage 241 and before the second charging stage 242.
For example, the method at least comprises an 8A constant current charging stage, a 6A constant current charging stage and a 4A constant current charging stage in sequence corresponding to the segmented constant current charging. The preset current is 7A, so that a lithium-reducing stage 25 is inserted after the 8A constant current charging stage is completed. After the lithium-down phase 25 is completed, the 6A constant current charging phase is continued.
In another embodiment, the charging phase is not limited to a charging mode, but rather refers to charging for a period of time. It is only necessary to place the lithium reduction stage 25 immediately after the end of the current charging stage.
For example, after the battery is charged, 8A is used for quick charging, the charging time is 10 minutes, after the 8A charging stage is completed, a lithium separation stage is entered, and in the lithium separation stage, 800mA is used for low-current charging, so that future lithium ions which are inserted into the negative electrode of the battery provide insertion time; after the lithium reduction stage 25 is completed, constant current charging is performed at 6A in accordance with the original charging program.
In the above embodiment, the duration of the lithium precipitation phase may be a fixed value. For example 1 minute. Thereby, the influence on the overall charging speed can be reduced.
In another embodiment, the charging current is typically adjusted in some manner during the lithium-down phase 25 to reduce the amount of uninterruptable lithium ions inserted by the battery's negative electrode. And when the duration of the lithium reduction stage 25 is longer, more lithium ions can be inserted into the battery cathode, and the probability of lithium precipitation of the battery cathode is further reduced.
Therefore, in an embodiment, corresponding to an embodiment in which the lithium-reduction stage 25 is inserted after the current charging stage, when the charging current of the electronic device 10 is greater than or equal to the preset current, the inserting the lithium-reduction stage 25 corresponding to the current charging stage further includes:
Acquiring the charging time length of the current charging stage;
the duration of the lithium reduction phase 25 and/or the charging current in the lithium reduction phase 25 is configured according to the charging duration of the present charging phase and the charging current of the electronic device 10.
In this embodiment, the duration of the lithium reduction phase 25 is flexible; or the charging current of the lithium reduction stage 25 can be flexibly set; or the duration of the lithium-ion stage 25 and the charging current can be flexibly set. Specifically, the setting may be performed according to the charging duration and the charging current of the current charging stage.
Illustratively, the longer the charge duration of the current charge phase, the greater the charge current, and the longer the charge duration that can be inserted into the lithium-ion stage 25, the less the charge current. For a plurality of charging phases, if the charging duration of each charging phase is equal, the longer the duration of the lithium-reduction phase 25 corresponding to the charging phase with the larger charging current, the smaller the charging current. The specific arrangement modes are various and are not listed here.
In this embodiment, the duration of the lithium reduction stage 25 and the charging current are flexibly set, so that the lithium reduction effect and the whole charging duration can be better coordinated. On the premise of meeting the lithium reduction effect, the charging duration of the lithium reduction stage 25 is reduced as much as possible, so that the charging speed can be ensured.
When the charging current in a certain charging stage is too large, and the charging duration of the charging stage has been longer, or the preset duration corresponding to the charging stage is longer, the lithium-reducing charging stage in the present disclosure can be set in the charging stage in addition to the current charging stage in order to not embed the lithium ion amount of the battery negative electrode.
Please refer to fig. 5. In an embodiment, step S22, when the charging current of the electronic device 10 is greater than or equal to the preset current, the inserting the lithium-reduction stage 25 corresponding to the current charging stage includes:
in step S222, when the charging current of the electronic device 10 is greater than or equal to the preset current, the lithium reduction stage 25 is inserted in the current charging stage to divide the current charging stage into at least two sub-charging stages.
The step of setting the lithium-reducing stage 25 in the current charging stage means that after the current charging stage is performed for a period of time, the lithium-reducing stage 25 is entered to reduce the amount of lithium ions which are not inserted into the negative electrode of the battery, and after the lithium-reducing stage 25 is completed, the rest of the current charging stage is continued.
The lithium reduction phase 25 may be provided only once here to divide the current charging phase into two sub-charging phases. The lithium reduction phase 25 may be started after a certain specific period of time has elapsed during the current charging phase; the duration of the current charging phase may also be a preset fixed value, at which point the lithium reduction phase 25 is started when the current charging phase duration has progressed to half.
Please refer to fig. 6. Illustratively, in a charging process 24, at least a first charging stage 241, a second charging stage 242, and a third charging stage 243 are included. The current charging phase is the first charging phase 241. The first charging stage 241 includes a first sub-charging stage 241, a second sub-charging stage 242, and a third sub-charging stage 243. Since the first charging phase is constant current charging. The lithium-down stage 25 is therefore provided after the end of the first sub-charging stage 241 and before the start of the second sub-charging stage 242, and the lithium-down stage 25 is provided after the end of the second sub-charging stage 242 and before the start of the third sub-charging stage 243.
In the present embodiment, the magnitude of the charging current is different in each charging stage, and thus the position where the lithium reduction stage 25 is inserted is also different. Specific: the setting the lithium reduction stage 25 in the current charging stage to divide the current charging stage into a plurality of sub-charging stages includes:
setting a charging unit duration according to the charging current of the current charging stage;
the lithium reduction stage 25 is inserted every time the current charging stage is performed for the unit charging period.
The charging periods corresponding to the first sub-charging period 241, the second sub-charging period 242, and the third sub-charging period 243 in fig. 5 are all equal, and correspond to the charging unit period.
When the charging phase is charged in a constant current mode, the charging current of the current charging phase can be known just when the charging phase is entered. The greater the charging current, the more likely lithium ions will be inserted into the negative electrode of the battery. Therefore, the charging time of the sub-charging stage is reduced as much as possible, and lithium ions which are not inserted into the battery cathode can be inserted into the battery cathode. It will be appreciated that the greater the charging current corresponding to the charging phase, the less the charging unit duration is set.
For example, when the charging current of the current charging stage is 8A and the charging unit duration is 1 minute, the current charging stage enters the lithium-reduction stage 25 after the charging time of the current charging stage is 1 minute, and after the lithium-reduction stage 25 is completed, the current charging stage is continued, and after the current charging stage is charged for 1 minute by 8A, the current charging stage enters the lithium-reduction stages 25 and … … again, and the process is sequentially performed until the current charging stage is completed.
In this embodiment, the original charging duration of the current charging stage (i.e., the charging duration without adding the lithium reduction stage 25) may be a preset fixed value or an unfixed value.
In another embodiment, the setting the lithium reduction stage 25 within the current charging stage to divide the current charging stage into at least two sub-charging stages includes:
Acquiring the charged duration of the current charging stage;
and inserting the lithium reduction stage 25 when the charged time period is greater than or equal to a preset charging time period.
For example, the preset charging period may be set by the manufacturer before the electronic device 10 or the mobile phone leaves the factory. The smaller the preset charging period is, the higher the frequency of the lithium-ion reduction stage 25 is inserted, so that lithium ions which are not inserted into the negative electrode of the battery can be reduced better.
For example, the preset charging duration is 3 minutes, and when the current charging phase has been performed for 3 minutes, a lithium-reducing phase 25 is inserted, and after the lithium-reducing phase 25 is finished, the subsequent part of the current charging phase is performed. I.e. the current charging phase inserts one lithium-down phase 25 every three minutes.
In another embodiment, the setting the lithium reduction stage 25 within the current charging stage to divide the current charging stage into at least two sub-charging stages includes:
acquiring a preset charging time length corresponding to the current charging stage;
setting a charging unit duration according to a preset charging duration corresponding to the current charging stage;
the lithium reduction stage 25 is inserted every time the current charging stage is performed for the unit charging period.
In this embodiment, the preset charging duration corresponding to the current charging stage is a preset fixed value, so that the unit charging duration may be set according to the charging current of the current charging stage.
In yet another embodiment, the inserting the lithium reduction stage 25 during the current charging stage includes:
setting a unit charging duration reference value according to the charging current of the current charging stage;
acquiring the charged duration of the current charging stage;
the lithium reduction stage 25 is inserted when the charged time period is greater than or equal to the unit charge time period reference value.
Specifically, the reference value of the unit charging time period may be set according to a preset correspondence between the charging current and the reference value of the charging time period. The correspondence may be measured by a test before the battery leaves the factory. The reference value of the unit charging time length obtained can also be calculated after the charging current of the current charging stage is brought into the function according to the preset function relation.
The unit charging duration reference value is used as a reference for comparison to compare with the charged duration of the current charging stage; when the reference value for the unit charge duration is reached with the charge duration, a lithium reduction stage 25 is inserted.
In this embodiment, the magnitude of the charging current is combined to determine the reference value of the unit charging duration, so that the charging speed and the lithium precipitation degree of the battery negative electrode can be better coordinated. On the premise of ensuring that lithium ions of the battery cathode have the opportunity of being inserted into the cathode as much as possible, the charging speed can be improved to a large extent.
In the above embodiment, the manner and location of insertion of the lithium reduction stage 25 is described. In the following examples, examples of the lithium reduction stage 25 itself will be described.
In one embodiment, the lithium separation stage is performed by reducing the charging current so that future lithium ions entering the battery negative electrode can have time to intercalate into the battery negative electrode. Specifically, the adjusting the charging current of the electronic device 10 when entering the lithium reduction stage 25 includes:
upon entering the lithium reduction phase 25, the electronic device 10 is charged with a first charging current,
the first charging current is less than or equal to a charging current corresponding to matching the capability of the positive electrode of the battery of the electronic device 10 to desorb lithium ions with the capability of the negative electrode of the battery of the electronic device 10 to accept lithium ions.
Lithium ion deintercalation of the battery anode matches the capacity of the battery anode of the electronic device 10 to accept lithium ions, the battery anode will not evolve lithium. It is understood herein that "capability" includes at least both speed and quantity. I.e., the rate and quantity of lithium ions extracted from the positive electrode of the battery matches the rate and quantity of lithium ions received by the negative electrode of the battery of the electronic device 10. Here, the charging current corresponding to matching the capability of the positive electrode of the battery of the electronic device 10 to desorb lithium ions with the capability of the negative electrode of the battery of the electronic device 10 to accept lithium ions may be measured through a test.
For example, the first charging current is 0.2C. When the battery capacity is 4000mAh, the first charging current is 800mA. The current charging phase is constant current charging of 8A. Therefore, after the end of the current charging phase, the lithium-down phase 25 is entered, and the battery is slowly charged at 800mA of charging current in the lithium-down phase 25. Meanwhile, the surplus lithium ions on the battery cathode are reduced, and the quantity of the lithium ions inserted into the battery cathode is increased.
In this embodiment, by reducing lithium in a manner of reducing charging current, not only can surplus lithium ions on the battery negative electrode be reduced, the number of lithium ions inserted into the battery negative electrode be increased, but also the influence on the charging speed can be reduced, so as to ensure the use experience of the user.
In another embodiment, the adjusting the charging current of the electronic device 10 when entering the lithium reduction stage 25 includes:
when the lithium reduction phase 25 is entered, the charging of the electronic device 10 is stopped.
In this embodiment, the charger may be caused to stop supplying power to the battery of the electronic device 10 by communication between the electronic device 10 and the charger. At this time, the charging current drops to 0. Therefore, in the lithium separation stage, the speed of lithium ions which are surplus in the negative electrode of the battery are accelerated to be inserted into the negative electrode, and the duration of the lithium separation stage is shortened, so that the influence on the charging speed is reduced.
In another embodiment, the adjusting the charging current of the electronic device 10 when entering the lithium reduction stage 25 includes:
upon entering the lithium reduction phase 25, the battery of the electronic device 10 is discharged.
In this embodiment, when the battery has been mounted to the electronic apparatus 10 in normal use, the charger is stopped from supplying power to the electronic apparatus 10 by communication between the electronic apparatus 10 and the charger. The battery is discharged to power the electronic device 10. When the battery is not mounted to the electronic device 10 for normal use, the battery may be discharged by a discharging device.
Schematically, during discharging, lithium ions of the battery cathode can reversely flow to the battery anode, so that the surplus of lithium ions on the surface of the battery cathode is reduced, and the phenomenon of lithium precipitation of the battery cathode is relieved or eliminated.
In the above embodiment, the duration of the lithium precipitation phase may be a fixed value. For example 1 minute. Thereby, the influence on the overall charging speed can be reduced.
In another embodiment, the charging current is typically adjusted in some manner during the lithium-down phase 25 to reduce the amount of uninterruptable lithium ions inserted by the battery's negative electrode. And when the duration of the lithium reduction stage 25 is longer, more lithium ions can be inserted into the battery cathode, and the probability of lithium precipitation of the battery cathode is further reduced.
Therefore, in an embodiment, corresponding to an embodiment in which the lithium-reduction stage 25 is inserted in the current charging stage, when the charging current of the electronic device 10 is greater than or equal to the preset current, the inserting of the lithium-reduction stage 25 corresponding to the current charging stage further includes:
the inserting the lithium-reducing stage 25 corresponding to the present charging stage when the charging current of the electronic device 10 is greater than or equal to the preset current further includes:
acquiring a preset charging unit duration; wherein, every time the unit charging duration is performed in the current charging stage, the lithium reduction stage 25 is inserted;
acquiring the charged duration of the current charging stage;
and configuring the duration and/or the charging current of the lithium reduction stage 25 according to the unit charging duration and the charged duration of the current charging stage.
In this embodiment, the duration of the lithium reduction phase 25 is flexible; or the charging current of the lithium reduction stage 25 can be flexibly set; or the duration of the lithium-ion stage 25 and the charging current can be flexibly set. Specifically, the setting may be performed according to the charging duration and the charging current of the current charging stage.
The preset charging unit duration may be preset by a manufacturer before the electronic device 10 leaves the factory; but may also be set according to the charging current of the present charging phase. The larger the charging current at the present charging stage, the smaller the charging unit duration can be set.
Illustratively, the longer the current charge unit duration, the greater the charge current, and the longer the charge duration that can be inserted into the lithium-ion stage 25, the less the charge current. The specific arrangement modes are various and are not listed here.
In this embodiment, the duration of the lithium reduction stage 25 and the charging current are flexibly set, so that the lithium reduction effect and the whole charging duration can be better coordinated. On the premise of meeting the lithium reduction effect, the charging duration of the lithium reduction stage 25 is reduced as much as possible, so that the charging speed can be ensured.
According to the technical scheme, when the charging current of the electronic equipment 10 is greater than or equal to the preset current, the lithium-ion-reducing stage 25 is inserted corresponding to the current charging stage, so that lithium ions which are inserted into the battery negative electrode in the future can be timely inserted into the battery negative electrode, and the situation that lithium ions are further accumulated to form an irreversible lithium metal simple substance due to continuous charging with a large current is avoided;
in the lithium reduction stage 25, the state of the battery of the electronic device 10 is adjusted to reduce the amount of lithium ions not inserted into the battery negative electrode on the surface of the battery negative electrode of the electronic device 10, so that lithium ions which are not inserted into the battery negative electrode can be inserted into the lithium ion negative electrode in the previous high-current charging process, the accumulation amount of lithium ions in the battery negative electrode is reduced, and the occurrence probability of the lithium precipitation phenomenon is reduced.
Therefore, the lithium precipitation phenomenon of the battery cathode can be reduced, and the service life of the battery can be prolonged.
Furthermore, it should be noted that the above-described figures are merely illustrative of the processes involved in the method according to the exemplary embodiments of the present disclosure, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
The following are device embodiments of the present disclosure that may be used to perform method embodiments of the present disclosure. For details not disclosed in the embodiments of the apparatus of the present disclosure, please refer to the embodiments of the method of the present disclosure.
Please refer to fig. 7. In one embodiment, the charge control device 30 includes:
a charging current obtaining module 31, configured to obtain a charging current of the electronic device in a current charging stage;
a lithium-down stage setting module 32, configured to set a lithium-down stage corresponding to a current charging stage in a charging process when a charging current of the electronic device in the current charging stage is greater than or equal to a preset current;
and the adjusting module 33 is used for adjusting the state of the battery of the electronic equipment when the lithium reduction stage is entered, so as to reduce the quantity of lithium ions which are not inserted into the negative electrode of the battery of the electronic equipment on the surface of the negative electrode of the battery.
In an embodiment, the lithium reduction stage setting module 32 is configured to insert the lithium reduction stage after the current charging stage ends when the charging current of the electronic device is greater than or equal to a preset current.
In an embodiment, the charging mode of the electronic device comprises at least two consecutive charging phases;
the lithium-reduction stage setting module 32 is configured to insert the lithium-reduction stage between the start of the next charging stage and the end of the current charging stage when the charging current of the electronic device is greater than or equal to a preset current.
In one embodiment, the charge control device 30 further includes:
the charging duration acquisition module is used for acquiring the charging duration corresponding to the current charging stage;
and a lithium reduction stage setting module 32, configured to configure the duration of the lithium reduction stage and/or the charging current in the lithium reduction stage according to the charging duration and the charging current of the electronic device corresponding to the current charging stage.
In an embodiment, the current of the present charging phase is constant;
the lithium-down stage setting module 32 is configured to insert the lithium-down stage in the current charging stage when the charging current of the electronic device is greater than or equal to a preset current.
In one embodiment, the charge control device 30 further includes:
the charging unit duration setting module is used for setting the charging unit duration according to the charging current of the current charging stage;
the lithium-reducing stage setting module 32 is configured to insert the lithium-reducing stage every time the current charging stage is performed for the unit charging duration.
In one embodiment, the charge control device 30 further includes:
the charging duration acquisition module is used for acquiring the charged charging duration of the current charging stage;
the lithium-reducing stage setting module 32 is configured to insert the lithium-reducing stage when the charged time period is longer than or equal to a preset charging time period.
In one embodiment, the charge control device 30 further includes:
the unit charging duration reference value setting module is used for setting a unit charging duration reference value according to the charging current of the current charging stage;
the charging duration acquisition module is used for acquiring the charged duration of the current charging stage;
the lithium-falling stage setting module 32 inserts the lithium-falling stage when the charged time period is greater than or equal to the unit charge time period reference value.
In an embodiment, the charging duration obtaining module is configured to obtain a preset charging unit duration; in the current charging stage, the lithium reduction stage is inserted every time the unit charging time length is carried out;
The charging duration acquisition module is further used for acquiring the charged duration of the current charging stage;
the lithium-reduction stage setting module 32 configures the duration and/or the charging current of the lithium-reduction stage according to the preset unit charging duration and the charged duration of the current charging stage.
In an embodiment, the adjusting module 33 is further configured to charge the electronic device with a first charging current when entering the lithium reduction phase and for the duration of the lithium reduction phase;
the first charging current is smaller than or equal to the charging current corresponding to matching of the capacity of the positive electrode of the battery of the electronic equipment for removing and inserting lithium ions with the capacity of the negative electrode of the battery of the electronic equipment for receiving lithium ions.
In an embodiment, the adjustment module 33 is further configured to stop charging the battery of the electronic device when entering the lithium reduction phase and for the duration of the lithium reduction phase.
In an embodiment, the adjustment module 33 is further configured to discharge the battery of the electronic device when entering the lithium reduction phase and for the duration of the lithium reduction phase.
It should be noted that the block diagram shown in fig. 7 is a functional entity, and does not necessarily correspond to a physically or logically independent entity. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.
The embodiment also proposes an electronic device 10, including a storage unit, a processing unit; the storage unit is stored with a detection program of the short circuit in the battery; the processing unit is used for executing the steps of the method for detecting the internal short circuit of the battery when the program for detecting the internal short circuit of the battery is operated.
The electronic device 10 proposed in the present disclosure includes a battery, a charging circuit, a storage unit, a processing unit; the storage unit is used for storing a detection program of the short circuit in the battery; the processing unit is used for running the detection program of the internal short circuit of the battery, and running the detection method of the internal short circuit of the battery when the detection program of the internal short circuit of the battery is executed so as to detect the internal short circuit of the battery.
Referring to fig. 8, the electronic device 10 is embodied in the form of a general purpose computing device. Components of the electronic device 10 may include, but are not limited to: the at least one processing unit 42, the at least one memory unit 41, and the bus 43 connecting the different system components (including the memory unit 420 and the processing unit 410), wherein the memory unit 41 stores program code that can be executed by the processing unit 42 such that the processing unit 42 performs the steps described in the above-described examples section of the present disclosure according to various exemplary embodiments of the present disclosure.
The storage unit 41 may include a readable medium in the form of a volatile storage unit, such as a random access memory unit (RAM) 411 and/or a cache memory unit 412, and may further include a read only memory unit (ROM) 413.
The storage unit 41 may also include a program/utility 414 having a set (at least one) of program modules 415, such program modules 415 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
The bus 43 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 10 may also communicate with one or more external devices 50 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 10, and/or any device (e.g., router, modem, display unit 44, etc.) that enables the robotic electronic device 10 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 45. Also, the robotic electronic device 10 may communicate with one or more networks, such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through a network adapter 46. As shown in fig. 8, the network adapter 46 communicates with other modules of the electronic device 10 of the robot via the bus 43. It should be appreciated that although not shown in fig. 8, other hardware and/or software modules may be used in connection with the robotic electronic device 10, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.
The present disclosure also proposes a computer readable storage medium that may employ a portable compact disc read only memory (CD-ROM) and that includes program code and that may be run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited thereto, and in the present disclosure, the readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer-readable medium carries one or more programs, which when executed by one of the devices, cause the computer-readable medium to implement the battery charging method as shown in fig. 2.
While the present disclosure has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration rather than of limitation. As the present disclosure may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (12)
1. A charging control method, characterized by comprising:
acquiring charging current of the electronic equipment in a current charging stage;
when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current, setting a lithium reduction stage corresponding to the current charging stage in a charging process;
when the lithium reduction stage is entered, the state of the battery of the electronic equipment is regulated so as to reduce the quantity of lithium ions which are not inserted into the negative electrode of the battery on the surface of the negative electrode of the battery of the electronic equipment;
when the lithium reduction stage is entered, adjusting the charging current of the electronic equipment, including:
Charging the electronic device with a first charging current when entering the lithium reduction phase and for the duration of the lithium reduction phase;
the first charging current is smaller than or equal to the charging current corresponding to matching the capacity of the positive electrode of the battery of the electronic equipment for removing and inserting lithium ions with the capacity of the negative electrode of the battery of the electronic equipment for receiving lithium ions;
wherein the current at the current charging stage is constant; when the charging current of the electronic device is greater than or equal to a preset current, a lithium-reducing stage is inserted in the charging process corresponding to the current charging stage, including:
inserting the lithium reduction stage in the current charging stage when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current;
the setting the lithium reduction stage in the current charging stage comprises the following steps:
setting a unit charging duration reference value according to the charging current of the electronic equipment in the current charging stage;
acquiring the charged duration in the current charging stage;
and inserting the lithium reduction stage when the charged time length in the current charging stage is greater than or equal to the unit charging time length reference value.
2. The charge control method according to claim 1, wherein setting a lithium reduction stage corresponding to a present charging stage in a charging process when a charging current of the electronic device in the present charging stage is greater than or equal to a preset current, comprises:
and when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current, inserting the lithium reduction stage after the current charging stage is finished.
3. The charge control method of claim 1, wherein the charging mode of the electronic device comprises at least two consecutive charging phases;
when the charging current of the electronic device is greater than or equal to a preset current, a lithium-reducing stage is inserted in the charging process corresponding to the current charging stage, including:
and when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current, inserting the lithium reduction stage into the period between the beginning of the next charging stage after the current charging stage is finished.
4. The charge control method according to claim 2, wherein when the charging current of the electronic device in the present charging phase is greater than or equal to a preset current, setting a lithium-down phase in a charging process corresponding to the present charging phase, further comprising:
Acquiring a charging time length corresponding to a current charging stage;
and configuring the duration of the lithium reduction stage and/or the charging current in the lithium reduction stage according to the charging duration and the charging current in the current charging stage.
5. The charge control method according to claim 1, wherein the inserting the lithium reduction stage in the current charging stage includes:
setting a charging unit duration according to the charging current of the electronic equipment in the current charging stage;
and inserting the lithium reduction stage when the current charging stage is carried out for the unit charging time length.
6. The charge control method according to claim 1, wherein the setting the lithium reduction stage in the current charge stage includes:
acquiring the charged duration in the current charging stage;
and inserting the lithium reduction stage when the charged time length is greater than or equal to a preset charging time length.
7. The charge control method according to claim 1, wherein when the charging current of the electronic device in the present charging phase is greater than or equal to a preset current, the lithium-down phase is inserted in a charging process corresponding to the present charging phase, further comprising:
Acquiring a preset charging unit duration; in the current charging stage, the lithium reduction stage is inserted every time the unit charging time length is carried out;
acquiring the charged duration in the current charging stage;
and configuring the duration of the lithium reduction stage and/or the charging current in the lithium reduction stage according to the preset unit charging duration and the charged duration in the current charging stage.
8. The charge control method according to any one of claims 1 to 7, characterized in that the adjusting the charge current of the electronic device when entering the lithium reduction stage comprises:
and stopping charging the battery of the electronic equipment when entering the lithium reduction stage and during the duration of the lithium reduction stage.
9. The charge control method according to any one of claims 1 to 7, characterized in that the adjusting the charge current of the electronic device when entering the lithium reduction stage comprises:
and discharging a battery of the electronic device when entering the lithium reduction stage and during the duration of the lithium reduction stage.
10. A charge control device, characterized by comprising:
The charging current acquisition module is used for acquiring the charging current of the electronic equipment in the current charging stage;
the lithium reduction stage setting module is used for setting a lithium reduction stage corresponding to the current charging stage in a charging process when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current;
the adjusting module is used for adjusting the state of the battery of the electronic equipment when the lithium reduction stage is entered, so as to reduce the quantity of lithium ions which are not inserted into the battery cathode on the surface of the battery cathode of the electronic equipment;
wherein, when entering the lithium reduction stage, adjust the charging current of the electronic device, including:
charging the electronic device with a first charging current when entering the lithium reduction phase and for the duration of the lithium reduction phase;
the first charging current is smaller than or equal to the charging current corresponding to matching the capacity of the positive electrode of the battery of the electronic equipment for removing and inserting lithium ions with the capacity of the negative electrode of the battery of the electronic equipment for receiving lithium ions;
wherein the current at the current charging stage is constant; when the charging current of the electronic device is greater than or equal to a preset current, a lithium-reducing stage is inserted in the charging process corresponding to the current charging stage, including:
Inserting the lithium reduction stage in the current charging stage when the charging current of the electronic equipment in the current charging stage is greater than or equal to a preset current;
the setting the lithium reduction stage in the current charging stage comprises the following steps:
setting a unit charging duration reference value according to the charging current of the electronic equipment in the current charging stage;
acquiring the charged duration in the current charging stage;
and inserting the lithium reduction stage when the charged time length in the current charging stage is greater than or equal to the unit charging time length reference value.
11. An electronic device, comprising:
a storage unit storing a charge control program;
a processing unit for executing the steps of the charge control method according to any one of claims 1 to 9 when the charge control program is executed.
12. A computer storage medium storing a charge control program which, when executed by at least one processor, implements the steps of the charge control method of any one of claims 1 to 9.
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