CN111509320A - Charging method and device - Google Patents
Charging method and device Download PDFInfo
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- CN111509320A CN111509320A CN201910091715.5A CN201910091715A CN111509320A CN 111509320 A CN111509320 A CN 111509320A CN 201910091715 A CN201910091715 A CN 201910091715A CN 111509320 A CN111509320 A CN 111509320A
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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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- 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
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Abstract
The present disclosure relates to a charging method and device, including: the battery is subjected to constant current charging with the first current value from the first time to a second time later than the first time, the battery is charged with the second current value from the second time to a third time later than the second time, the second current value is gradually decreased from the first current value to a third current value between the second time and the third time, and the battery is subjected to constant current charging with the third current value from the third time to a fourth time later than the third time. The battery heating phenomenon is effectively relieved, the service life of the battery is prolonged, in addition, the direct reduction of the charging current is avoided by the stepped degressive charging mode of the charging current value, the polarization of the battery can be effectively relieved, and the charging speed of the battery is effectively improved.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a charging method and device.
Background
Generally, the charging mode of the battery may include both constant current charging and constant voltage charging. The constant current charging may be expressed as keeping the charging current constant during the charging process until the charging voltage value of the battery reaches a preset value. Constant voltage charging may be expressed as a charging voltage value that is maintained at a constant value throughout the charging time during the charging process, and a current that is gradually decreased as the terminal voltage of the battery is gradually increased. When the battery is charged by constant current charging, the battery generates large polarization due to large current, so that the charging speed is reduced, and the battery generates heat due to the large current. In the related art, in order to alleviate the heat generation of the battery, the constant current charging is continued at a reduced charging current value after the battery is subjected to the constant current charging for a period of time, but in this case, the polarization phenomenon of the battery cannot be alleviated, and is likely to be further aggravated, which may further result in a reduction in the charging speed. In the related art, in order to alleviate the polarization phenomenon of the battery, the constant-current charging is performed on the battery for a period of time, and then the constant-voltage charging is performed on the battery, however, in the process of converting the constant-current charging to the constant-voltage charging, the temperature of the battery rises rapidly, and the aging of the battery is accelerated.
Disclosure of Invention
To overcome the problems in the related art, the present disclosure provides a charging method and apparatus.
According to a first aspect of the embodiments of the present disclosure, there is provided a charging method, including: charging the battery by adopting a first charging mode;
in the process of charging the battery by adopting the first charging mode, the following operations are carried out:
performing constant current charging on the battery at a first current value from a first time to a second time later than the first time;
charging the battery with a second current value from the second time to a third time later than the second time, wherein the second current value is gradually decreased from the first current value to a third current value between the second time and the third time;
and performing constant current charging on the battery at the third current value from the third time to a fourth time later than the third time.
In one possible implementation, the step-wise decreasing the second current value from the first current value to the third current value between the second time and the third time includes:
performing constant current charging on the battery in each sub-period between the second time and the third time, and gradually decreasing the current value adopted for performing constant current charging on the battery in each sub-period according to the sequence of the sub-periods from first to last;
the decreasing amplitudes of the current values adopted for constant current charging of the battery in each sub-period are the same, partially the same or different.
In one possible implementation manner, according to the sequence of the sub-time periods from first to last, the decreasing amplitude of the current value adopted for carrying out constant current charging on the battery in each sub-time period is gradually reduced; or
And gradually increasing the decreasing amplitude of the current value adopted for constant current charging of the battery in each sub-period from first to last according to the sequence of each sub-period.
In one possible implementation, the time durations of the sub-periods are the same, partly the same or different from each other.
In a possible implementation, the time intervals between the first time and the second time, between the second time and the third time, and between the third time and the fourth time are the same, partially the same, or different from each other.
In one possible implementation manner, the method further includes: charging the battery by adopting a second charging mode, and in the second charging mode, performing constant-voltage charging on the battery by using a preset voltage value;
in the whole process of charging the battery, the battery is charged by adopting the first charging mode once or for multiple times, and the battery is charged by adopting the second charging mode once or for multiple times.
In one possible implementation form of the method,
aiming at the condition that the battery is charged by adopting a second charging mode for multiple times, the voltage value of the second charging mode adopted at the next time is larger than the voltage value of the second charging mode adopted at the previous time;
and aiming at the condition that the battery is charged by adopting the first charging mode for multiple times, the current values of the first charging mode adopted at the next time are all smaller than the minimum current value of the first charging mode adopted at the previous time.
In one possible implementation form of the method,
and aiming at the condition that the battery is charged by adopting the second charging mode for multiple times, the battery is charged by adopting the first charging mode once or multiple times between the two times of charging the battery by adopting the second charging mode.
In one possible implementation form of the method,
the charging time lengths in the first charging mode are the same, partially the same or different;
the charging time length of each time of adopting the second charging mode is the same, partially the same or different.
According to a second aspect of the embodiments of the present disclosure, there is provided a charging device including: the first charging module is used for charging the battery in a first charging mode;
the first charging module includes:
the first charging submodule is used for performing constant current charging on the battery at a first current value from a first time to a second time later than the first time;
the second charging submodule is used for charging the battery with a second current value from the second time to a third time later than the second time, and the second current value is gradually decreased from the first current value to a third current value from the second time to the third time;
and the third charging submodule is used for performing constant current charging on the battery at a third current value from the third moment to a fourth moment later than the third moment.
In one possible implementation, the second charging submodule includes:
the fourth charging submodule is used for carrying out constant current charging on the battery in each sub-period from the second moment to the third moment, and the current values adopted for carrying out constant current charging on the battery in each sub-period are gradually decreased one by one according to the sequence of the sub-periods from first to last;
the decreasing amplitudes of the current values adopted for constant current charging of the battery in each sub-period are the same, partially the same or different.
In one possible implementation manner, according to the sequence of the sub-time periods from first to last, the decreasing amplitude of the current value adopted for carrying out constant current charging on the battery in each sub-time period is gradually reduced; or
And gradually increasing the decreasing amplitude of the current value adopted for constant current charging of the battery in each sub-period from first to last according to the sequence of each sub-period.
In one possible implementation, the time durations of the sub-periods are the same, partly the same or different from each other.
In a possible implementation, the time intervals between the first time and the second time, between the second time and the third time, and between the third time and the fourth time are the same, partially the same, or different from each other.
In one possible implementation manner, the method further includes: the second charging module is used for charging the battery in a second charging mode, and in the second charging mode, the battery is charged at a constant voltage according to a preset voltage value;
in the whole process of charging the battery, the battery is charged by adopting the first charging mode once or for multiple times, and the battery is charged by adopting the second charging mode once or for multiple times.
In one possible implementation form of the method,
aiming at the condition that the battery is charged by adopting a second charging mode for multiple times, the voltage value of the second charging mode adopted at the next time is larger than the voltage value of the second charging mode adopted at the previous time;
and aiming at the condition that the battery is charged by adopting the first charging mode for multiple times, the current values of the first charging mode adopted at the next time are all smaller than the minimum current value of the first charging mode adopted at the previous time.
In one possible implementation form of the method,
and aiming at the condition that the battery is charged by adopting the second charging mode for multiple times, the battery is charged by adopting the first charging mode once or multiple times between the two times of charging the battery by adopting the second charging mode.
In one possible implementation form of the method,
the charging time lengths in the first charging mode are the same, partially the same or different;
the charging time length of each time of adopting the second charging mode is the same, partially the same or different.
According to a third aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including: a battery and a charging control module;
the charging control module executes charging control of the battery according to the method.
According to a fourth aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having instructions which, when executed by a processor, enable the processor to perform the above-described method.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: in the embodiment of the present disclosure, generally speaking, when adopting constant voltage charging, the speed of current value decline is slower, make the charging current value maintain a higher current value scope in longer time, cause the battery to generate heat further aggravation, the embodiment of the present disclosure reduces to the third current value from first current value is cascaded through making the second current value between second moment to third moment, the speed that the current value descends has been accelerated in comparison to constant voltage charging, the battery phenomenon of generating heat has effectively been alleviated, be favorable to improving the life of battery, furthermore, the cascaded of charging current value is decremented and has avoided charging current's direct reduction, be favorable to alleviating the polarization of battery, and then the charging speed of battery has effectively been promoted.
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 charging method according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating a charging method according to an example embodiment.
Fig. 3 is a flow chart illustrating a charging method according to an example embodiment.
FIG. 4 is a block diagram of an electronic device in an application example.
Fig. 5 is a schematic diagram of charging current over time in an example application.
Fig. 6 is a block diagram illustrating a charging device according to an exemplary embodiment.
Fig. 7 is a block diagram illustrating a charging device according to an exemplary embodiment.
Fig. 8 is a block diagram illustrating a charging device according to an exemplary 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.
Fig. 1 is a flow chart illustrating a charging method according to an exemplary embodiment. The method may be applied to a charging control module, which may be, for example, a charging control circuit or a charging control chip, and the type of the charging control module is not limited in the embodiments of the present disclosure. As shown in fig. 1, the method may include: step 100, charging the battery by adopting a first charging mode.
In step 100, may include:
and 1001, performing constant current charging on the battery at a first current value from a first time to a second time later than the first time.
And 1002, charging the battery with a second current value from the second time to a third time later than the second time, wherein the second current value is gradually decreased from the first current value to a third current value between the second time and the third time.
And 1003, performing constant current charging on the battery at a third current value from the third time to a fourth time later than the third time.
As an example of this embodiment, the charging control module may detect a voltage value of the battery before charging the battery, and may determine whether the voltage value of the battery meets a preset first charging condition (for example, the first charging condition may be a voltage value interval, and if the voltage value of the battery belongs to the voltage value interval, it may be determined that the voltage value of the battery meets the preset first charging condition.
The charging control module may start constant-current charging of the battery at a preset first current value when the voltage value of the battery meets a first charging condition (an example of a first time), and may continuously detect the voltage value and the current value of the battery throughout the charging process (for example, may detect the voltage of the battery at a preset detection frequency), the charging control module may determine whether the voltage of the battery meets a second charging condition (for example, may determine that the voltage of the battery meets the second charging condition if the voltage of the battery is greater than or equal to a first voltage threshold), and may charge the battery at a second current value from the time to a third time when the voltage value of the battery is determined to meet the second charging condition (an example of a second time), and the second current value may be decreased stepwise from the first current value to the third current value at a preset period and a preset magnitude during charging of the battery at the second current value (for example, if the first current value is 5 amperes, the third current value is 3 amperes, the preset period is 30 seconds, and the preset decrement amplitude is 0.5 amperes, the charging control module may perform constant current charging on the battery at 4.5 amperes in the first 20 seconds of the first period, perform power-off processing on the battery in the last 10 seconds of the first period, then perform constant current charging on the battery at 4 amperes in the first 20 seconds of the second period, perform power-off processing on the battery in the last 10 seconds of the second period, finally perform constant current charging on the battery at 3.5 amperes in the first 20 seconds of the third period, and perform power-off processing on the battery in the last 10 seconds of the third period). The charging control module may perform constant current charging on the battery at the third current value from the third time.
As another example of the embodiment, the charging control module may detect a voltage value of the battery before charging the battery, and may determine whether the voltage value of the battery meets a preset first charging condition (for example, if the voltage value is greater than a preset voltage threshold, it may be determined that the voltage value of the battery meets the preset first charging condition). The charging control module may use a time when the voltage value of the battery is determined to meet the first charging condition as a first time, and may determine the second time, the third time, and the fourth time according to an interval between the first time, a preset first time and the second time, a preset second time and the third time, and a preset third time and a preset fourth time. The charging control module may start constant current charging of the battery at a preset first current value from the first time to the second time. And charging the battery with the second current value from the second time to the third time, wherein the second current value is gradually decreased from the first current value to the third current value in the process of charging the battery with the second current value. The charging control module may perform constant current charging on the battery at the third current value from the third time.
Generally speaking, because when adopting constant voltage charging, the speed that the current value descends is slower, make the charging current value maintain a higher current value scope in longer time, cause the battery to generate heat further aggravation, this disclosed embodiment is through making the second current value from the cascaded third current value that descends of first current value between second moment to third moment, compare in constant voltage charging, the speed that the current value descends has been accelerated, the battery phenomenon of generating heat has effectively been alleviated, be favorable to improving the life of battery, furthermore, the direct reduction of charging current has been avoided to the cascaded descending of charging current value, be favorable to alleviating the polarization of battery, and then the charging rate of battery has effectively been promoted.
In a possible implementation, the time intervals between the first time and the second time, between the second time and the third time, and between the third time and the fourth time are the same, partially the same, or different from each other.
For example, the charging control module may detect a voltage value of the battery at a preset frequency during charging, and may dynamically determine a time interval between the first time and the second time, between the second time and the third time, and between the third time and the fourth time according to a real-time voltage value of the battery.
For another example, the time intervals between the first time and the second time, between the second time and the third time, and between the third time and the fourth time may also be preset in the charging control module, for example, according to empirical values. It should be noted that, in the embodiment of the present disclosure, a determination manner of a time interval between a first time and a second time, between the second time and a third time, and between the third time and a fourth time is not limited.
Fig. 2 is a flow chart illustrating a charging method according to an example embodiment. As shown in fig. 2, the difference between fig. 2 and fig. 1 is that step 1002 may include: step 200, performing constant current charging on the battery in each sub-period between the second time and the third time, and gradually decreasing the current values adopted for performing constant current charging on the battery in each sub-period according to the sequence of the sub-periods from first to last; the decreasing amplitudes of the current values adopted for constant current charging of the battery in each sub-period are the same, partially the same or different.
For example, if the first current value is 5 amperes, the third current value is 3 amperes, the durations of the sub-periods are equal, and the decreasing amplitudes of the current values are 0.5 amperes, the charging control module may perform constant current charging on the battery at 4.5 amperes in the first sub-period, perform constant current charging on the battery at 4 amperes in the second sub-period, and perform constant current charging on the battery at 3.5 amperes in the third sub-period.
In one possible implementation manner, the decreasing amplitude of the current value adopted for constant current charging of the battery in each sub-period is gradually decreased in the sequence of the sub-periods from first to last. Therefore, the current value can be quickly reduced, and the heating phenomenon of the battery can be further relieved.
For example, if the first current value is 5 amperes, the third current value is 3 amperes, and the durations of the sub-periods are equal, the charging control module may perform constant current charging on the battery at 4 amperes in the first sub-period, perform constant current charging on the battery at 3.5 amperes in the second sub-period, and perform constant current charging on the battery at 3.2 amperes in the third sub-period.
In one possible implementation manner, the decreasing amplitude of the current value adopted for constant current charging of the battery in each sub-period gradually increases in the order of the sub-periods from first to last. Therefore, the charging current can be further effectively prevented from being reduced too fast, and the polarization of the battery is favorably relieved.
For example, if the first current value is 5 amperes, the third current value is 3 amperes, and each subinterval is 30 seconds, the charging control module may perform constant-current charging on the battery at 4.7 amperes in the first subinterval, perform constant-current charging on the battery at 4.1 amperes in the second subinterval, and perform constant-current charging on the battery at 3.1 amperes in the third subinterval.
It should be noted that other forms of decreasing amplitudes may be determined according to the charging requirement (for example, the decreasing amplitude of the current value adopted for the constant current charging of the battery in each sub-period is changed randomly), and the embodiment of the present disclosure does not limit the changing form of the decreasing amplitude of the current value adopted for the constant current charging of the battery in each sub-period.
In one possible implementation, the time durations of the sub-periods may be the same, partially the same or different from each other. The duration of each sub-period can be adjusted and set according to the actual charging requirement, and the duration of each sub-period is not limited in the embodiment of the disclosure.
Fig. 3 is a flow chart illustrating a charging method according to an example embodiment. As shown in fig. 3, the method may further include step 300 of charging the battery in a second charging mode, in which the battery is charged at a constant voltage by a preset voltage value; in the whole process of charging the battery, the battery is charged by adopting the first charging mode once or for multiple times, and the battery is charged by adopting the second charging mode once or for multiple times.
For example, the charging control module may detect a voltage value and a current value of the battery at a preset frequency during the process of charging the battery in the first charging mode, and determine whether the voltage value of the battery satisfies the third charging condition. The charging control module may perform constant voltage charging on the battery at a preset voltage value when it is determined that the voltage value of the battery satisfies a third charging condition (e.g., the voltage value of the battery is greater than a second voltage threshold). And may end the constant voltage charging of the battery when it is detected that the charging current value is less than the preset current threshold value. The polarization of the battery can be further effectively relieved by adopting constant voltage charging to the battery, and the actual capacity of the battery is enlarged.
It should be noted that the order between the first charging mode and the second charging mode may be adjusted according to the charging requirement during the whole process of charging the battery, for example, the first charging mode and the second charging mode may be alternately used for charging the battery for a plurality of times during the whole process of charging the battery. The disclosed embodiment does not limit the sequence between the first charging mode and the second charging mode, so that the disclosed embodiment can flexibly select different charging modes to meet batteries with different characteristics.
In a possible implementation manner, in order to adopt the first charging mode for a plurality of times to charge the battery, a plurality of current values of the first charging mode adopted at the next time are all smaller than the minimum current value of the first charging mode adopted at the previous time, so that the charging current value adopting the first charging mode at each time is continuously decreased with the increase of the times, thereby being beneficial to further eliminating the polarization of the battery and relieving the heating phenomenon of the battery.
For example, if the battery is charged in the first charging mode for 2 times in the entire process of charging the battery, the current values used when the battery is charged in the first charging mode for the second time are all smaller than the third current values used when the battery is charged in the first charging mode for the first time.
In a possible implementation manner, in a case where the battery is charged by adopting the second charging mode for multiple times, a voltage value of the second charging mode adopted for the next time is greater than a voltage value of the second charging mode adopted for the previous time, so that as the number of times increases, the charging voltage of the second charging mode adopted for each time continuously increases, which is beneficial to further eliminating polarization of the battery and increasing the capacity of the battery.
For example, if the battery is charged in the second mode 2 times in the entire process of charging the battery, the voltage value used when the battery is charged in the second mode for the second time is larger than the third current value used when the battery is charged in the second mode for the first time.
In one possible implementation, in a case where the battery is charged by using the second charging mode a plurality of times, the battery is charged by using the first charging mode one or more times between charging the battery by using the second charging mode twice. After the first charging mode is adopted for charging the battery for one time or multiple times, the second charging mode is adopted for constant-voltage charging of the battery, so that battery polarization accumulated when the first charging mode is adopted for charging the battery for one time or multiple times can be effectively relieved, and the actual capacity of the battery is further expanded.
For example, the charging control module may charge the battery in the second charging mode one time after charging the battery in the first charging mode one or more times, and repeat this process until the charging control module detects that the battery is fully charged.
In one possible implementation manner, for the case that the battery is charged by adopting the first charging mode for multiple times, the charging time lengths in each time of adopting the first charging mode are the same, partially the same or different from each other; and aiming at the condition that the battery is charged by adopting the second charging mode for multiple times, the charging time length of each time by adopting the second charging mode is the same, partially the same or different.
FIG. 4 is a block diagram of an electronic device in an application example. The electronic device may be an electronic device such as a mobile phone, a smart watch, a tablet computer, a notebook computer, and the like, and the type of the electronic device is not limited in the embodiments of the present disclosure. As shown in fig. 4, the electronic device 40 may include a battery 41 and a charging control module 42, wherein the charging control module 42 may be electrically connected to the battery 41, and the charging control module 42 may perform the above method when being powered by an external power source 43 to perform charging control on the battery 41.
Fig. 5 is a schematic diagram of a charging current varying with time in an application example, as shown in fig. 5, the charging control module may preset a first current value I1, a third current value I2, and a preset voltage value (not shown in the figure) for constant voltage charging, the charging control module may detect a voltage value of the battery, and may determine whether the voltage value of the battery meets a preset first charging condition, and if the charging control module determines that the voltage value of the battery meets the first charging condition (for example, the voltage value of the battery is smaller than the third voltage threshold value) at a time T0 (an example of the first time), the charging control module may start constant current charging on the battery with the preset first current value I1 from the time T0. The charging control module may continuously detect the voltage value and the current value of the battery throughout the charging process. The charging control module may determine whether the voltage value of the battery meets a preset second charging condition, and if the charging control module determines that the voltage value of the battery meets the second charging condition (for example, the voltage value of the battery is greater than or equal to a fourth voltage threshold) at time T1 (an example of a second time), the battery may be subjected to constant-current charging in each sub-period from time T1 to time T2 (an example of a third time), and a current value adopted for the constant-current charging of the battery in each sub-period is gradually decreased from I1 to I2 in an order from first to last in each sub-period. The charging control module performs constant current charging on the battery at a third current value I2 from the time T2. The charging control module may determine whether the voltage value of the battery meets a preset third charging condition, and may perform constant voltage charging of the battery at the preset voltage value from time T3 if the charging control module determines that the voltage value of the battery meets the third charging condition (e.g., the voltage value of the battery is greater than or equal to a fifth voltage threshold) at time T3 (an example of a fourth time). If the charging control module detects that the current value of the battery is smaller than the preset current threshold at the time T4, the charging of the battery may be ended at the time T4.
Fig. 6 is a block diagram illustrating a charging device according to an exemplary embodiment. As shown in fig. 6, the apparatus may include: a first charging module 60 for charging the battery in a first charging mode;
the first charging module 60 includes:
the first charging submodule 61 is used for performing constant current charging on the battery at a first current value from a first time to a second time later than the first time;
a second charging submodule 62, configured to charge the battery with a second current value from the second time to a third time later than the second time, where the second current value is decreased from the first current value to a third current value in a stepwise manner between the second time and the third time;
and the third charging submodule 63 is configured to perform constant-current charging on the battery at a third current value from the third time to a fourth time later than the third time.
Fig. 7 is a block diagram illustrating a charging device according to an exemplary embodiment. For convenience of explanation, only the portions related to the present embodiment are shown in fig. 7. Components in fig. 7 that are numbered the same as those in fig. 6 have the same functions, and detailed descriptions of these components are omitted for the sake of brevity. As shown in figure 7 of the drawings,
in one possible implementation, the second charging submodule 62 includes:
the fourth charging submodule is used for carrying out constant current charging on the battery in each sub-period from the second moment to the third moment, and the current values adopted for carrying out constant current charging on the battery in each sub-period are gradually decreased one by one according to the sequence of the sub-periods from first to last;
the decreasing amplitudes of the current values adopted for constant current charging of the battery in each sub-period are the same, partially the same or different.
In one possible implementation manner, according to the sequence of the sub-time periods from first to last, the decreasing amplitude of the current value adopted for carrying out constant current charging on the battery in each sub-time period is gradually reduced; or
And gradually increasing the decreasing amplitude of the current value adopted for constant current charging of the battery in each sub-period from first to last according to the sequence of each sub-period.
In one possible implementation, the time durations of the sub-periods are the same, partly the same or different from each other.
In a possible implementation, the time intervals between the first time and the second time, between the second time and the third time, and between the third time and the fourth time are the same, partially the same, or different from each other.
In one possible implementation, the apparatus further includes: a second charging module 64, configured to charge the battery in a second charging mode, where the battery is charged at a constant voltage according to a preset voltage value in the second charging mode;
in the whole process of charging the battery, the battery is charged by adopting the first charging mode once or for multiple times, and the battery is charged by adopting the second charging mode once or for multiple times.
In one possible implementation form of the method,
aiming at the condition that the battery is charged by adopting a second charging mode for multiple times, the voltage value of the second charging mode adopted at the next time is larger than the voltage value of the second charging mode adopted at the previous time;
and aiming at the condition that the battery is charged by adopting the first charging mode for multiple times, the current values of the first charging mode adopted at the next time are all smaller than the minimum current value of the first charging mode adopted at the previous time.
In one possible implementation form of the method,
and aiming at the condition that the battery is charged by adopting the second charging mode for multiple times, the battery is charged by adopting the first charging mode once or multiple times between the two times of charging the battery by adopting the second charging mode.
In one possible implementation form of the method,
the charging time lengths in the first charging mode are the same, partially the same or different;
the charging time length of each time of adopting the second charging mode is the same, partially the same or different.
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. 8 is a block diagram illustrating a charging device according to an exemplary embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 8, the apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.
The processing component 802 generally controls overall operation of the device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the apparatus 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 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 multimedia component 808 includes a screen that provides an output interface between the device 800 and a user, in some embodiments, the screen may include a liquid crystal display (L CD) and a Touch Panel (TP). if the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 800 is in an operational 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 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 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 814 includes one or more sensors for providing various aspects of state assessment for the device 800. For example, the sensor assembly 814 may detect the open/closed status of the device 800, the relative positioning of components, such as a display and keypad of the device 800, the sensor assembly 814 may also detect a change in the position of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration/deceleration of the device 800, and a change in the temperature of the device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 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 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communications between the apparatus 800 and other devices in a wired or wireless manner. The device 800 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 816 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 816 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 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), programmable logic devices (P L D), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the methods described above.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 804 comprising instructions, executable by the processor 820 of the device 800 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.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided that includes instructions, such as the memory 1932 that includes instructions, which are executable by the processing component 1922 of the apparatus 1900 to perform the above-described method. 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.
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 (20)
1. A method of charging, comprising: charging the battery by adopting a first charging mode;
in the process of charging the battery by adopting the first charging mode, the following operations are carried out:
performing constant current charging on the battery at a first current value from a first time to a second time later than the first time;
charging the battery with a second current value from the second time to a third time later than the second time, wherein the second current value is gradually decreased from the first current value to a third current value between the second time and the third time;
and performing constant current charging on the battery at the third current value from the third time to a fourth time later than the third time.
2. The method of claim 1, wherein the second current value is stepped down from the first current value to a third current value between the second time and a third time, comprising:
performing constant current charging on the battery in each sub-period between the second time and the third time, and gradually decreasing the current value adopted for performing constant current charging on the battery in each sub-period according to the sequence of the sub-periods from first to last;
the decreasing amplitudes of the current values adopted for constant current charging of the battery in each sub-period are the same, partially the same or different.
3. The method according to claim 2, wherein the decreasing magnitude of the current value adopted for constant current charging of the battery in each sub-period is gradually decreased in the order of the sub-periods from first to last; or
And gradually increasing the decreasing amplitude of the current value adopted for constant current charging of the battery in each sub-period from first to last according to the sequence of each sub-period.
4. The method of claim 2, wherein the sub-periods are of the same duration, are partially the same or are different from each other.
5. The method according to claim 1, characterized in that the time intervals between the first and second time instants, the second and third time instants and the third and fourth time instants are the same, partly the same or different from each other.
6. The method of claim 1, further comprising: charging the battery by adopting a second charging mode, and in the second charging mode, performing constant-voltage charging on the battery by using a preset voltage value;
in the whole process of charging the battery, the battery is charged by adopting the first charging mode once or for multiple times, and the battery is charged by adopting the second charging mode once or for multiple times.
7. The method of claim 6,
aiming at the condition that the battery is charged by adopting a second charging mode for multiple times, the voltage value of the second charging mode adopted at the next time is larger than the voltage value of the second charging mode adopted at the previous time;
and aiming at the condition that the battery is charged by adopting the first charging mode for multiple times, the current values of the first charging mode adopted at the next time are all smaller than the minimum current value of the first charging mode adopted at the previous time.
8. The method of claim 7,
and aiming at the condition that the battery is charged by adopting the second charging mode for multiple times, the battery is charged by adopting the first charging mode once or multiple times between the two times of charging the battery by adopting the second charging mode.
9. The method of claim 6,
the charging time lengths in the first charging mode are the same, partially the same or different;
the charging time length of each time of adopting the second charging mode is the same, partially the same or different.
10. A charging device, comprising: the first charging module is used for charging the battery in a first charging mode;
the first charging module includes:
the first charging submodule is used for performing constant current charging on the battery at a first current value from a first time to a second time later than the first time;
the second charging submodule is used for charging the battery with a second current value from the second time to a third time later than the second time, and the second current value is gradually decreased from the first current value to a third current value from the second time to the third time;
and the third charging submodule is used for performing constant current charging on the battery at a third current value from the third moment to a fourth moment later than the third moment.
11. The apparatus of claim 10, wherein the second charging submodule comprises:
the fourth charging submodule is used for carrying out constant current charging on the battery in each sub-period from the second moment to the third moment, and the current values adopted for carrying out constant current charging on the battery in each sub-period are gradually decreased one by one according to the sequence of the sub-periods from first to last;
the decreasing amplitudes of the current values adopted for constant current charging of the battery in each sub-period are the same, partially the same or different.
12. The apparatus of claim 11, wherein the decreasing magnitude of the current value used for constant current charging of the battery in each sub-period is gradually decreased in the order from first to last in each sub-period; or
And gradually increasing the decreasing amplitude of the current value adopted for constant current charging of the battery in each sub-period from first to last according to the sequence of each sub-period.
13. The apparatus of claim 11, wherein the sub-periods are of the same duration, are partially the same or are different from each other.
14. The apparatus of claim 10, wherein the time intervals between the first time and the second time, the second time and the third time, and the third time and the fourth time are the same, partially the same, or different from each other.
15. The apparatus of claim 10, further comprising: the second charging module is used for charging the battery in a second charging mode, and in the second charging mode, the battery is charged at a constant voltage according to a preset voltage value;
in the whole process of charging the battery, the battery is charged by adopting the first charging mode once or for multiple times, and the battery is charged by adopting the second charging mode once or for multiple times.
16. The apparatus of claim 15,
aiming at the condition that the battery is charged by adopting a second charging mode for multiple times, the voltage value of the second charging mode adopted at the next time is larger than the voltage value of the second charging mode adopted at the previous time;
and aiming at the condition that the battery is charged by adopting the first charging mode for multiple times, the current values of the first charging mode adopted at the next time are all smaller than the minimum current value of the first charging mode adopted at the previous time.
17. The apparatus of claim 16,
and aiming at the condition that the battery is charged by adopting the second charging mode for multiple times, the battery is charged by adopting the first charging mode once or multiple times between the two times of charging the battery by adopting the second charging mode.
18. The apparatus of claim 15,
the charging time lengths in the first charging mode are the same, partially the same or different;
the charging time length of each time of adopting the second charging mode is the same, partially the same or different.
19. An electronic device, comprising: a battery and a charging control module;
the charging control module executes the method according to any one of claims 1 to 9 to perform charging control on the battery.
20. A non-transitory computer readable storage medium having instructions therein which, when executed by a processor, enable the processor to perform the method of any one of claims 1 to 9.
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