CN117616615A - Battery charging method and device - Google Patents
Battery charging method and device Download PDFInfo
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- CN117616615A CN117616615A CN202280004192.6A CN202280004192A CN117616615A CN 117616615 A CN117616615 A CN 117616615A CN 202280004192 A CN202280004192 A CN 202280004192A CN 117616615 A CN117616615 A CN 117616615A
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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
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Abstract
The application provides a battery charging method and a device thereof, and relates to the technical field of charging. The method comprises the following steps: acquiring a first attribute parameter of an environment where a target battery is located, a second attribute parameter of a battery state and a battery cell system parameter; acquiring charging parameters of M stages of a target battery according to the system parameters of the battery cell, wherein M is a positive integer; acquiring a target voltage value according to the first attribute parameter, the second attribute parameter and the battery cell system parameter; correcting the cut-off voltage of the charging parameter of the M stages in the charging parameters of the M stages according to the target voltage value to obtain the target charging parameter; and determining a charging strategy of the target battery according to the second attribute parameter and the target charging parameter, and charging the target battery based on the charging strategy. The battery charging control method and device can flexibly charge according to the target voltage value, balance the battery capacity and the charging time, ensure to delay battery aging, improve the capacity of the full-charge battery as much as possible on the premise of improving the service life of the battery, and improve the service time of the mobile phone after single charging.
Description
The present disclosure relates to the field of charging technologies, and in particular, to a battery charging method and a device thereof.
In the related art, the cut-off voltage in the battery charging process can be reduced based on the cycle times, although the battery aging is delayed to a certain extent, the service life of the battery is prolonged, the battery cannot be fully charged due to the reduction of the cut-off voltage of the constant current section, and the use experience of a user is affected. Therefore, how to balance the battery capacity and the charging time, and to increase the full charge battery capacity as much as possible on the premise of ensuring the battery aging delay and the battery life, and to increase the service time of the mobile phone after single charging has become one of important research directions.
Disclosure of Invention
The present application aims to solve, at least to some extent, one of the technical problems in the related art. To this end, an object of the present application is to propose a battery charging method.
A second object of the present application is to provide a battery charging device.
A third object of the present application is to propose an electronic device.
A fourth object of the present application is to propose a non-transitory computer readable storage medium.
A fifth object of the present application is to propose a computer programme product.
To achieve the above object, an embodiment of a first aspect of the present application provides a battery charging method, including:
acquiring a first attribute parameter of an environment where a target battery is located, a second attribute parameter of a battery state and a battery cell system parameter;
acquiring charging parameters of M stages of a target battery according to the system parameters of the battery cell, wherein M is a positive integer;
acquiring a target voltage value according to the first attribute parameter, the second attribute parameter and the battery cell system parameter;
correcting the cut-off voltage of the charging parameter of the M stages in the charging parameters of the M stages according to the target voltage value to obtain the target charging parameter;
and determining a charging strategy of the target battery according to the second attribute parameter and the target charging parameter, and charging the target battery based on the charging strategy.
To achieve the above object, an embodiment of a second aspect of the present application provides a battery charging device, including:
the first acquisition module is used for acquiring a first attribute parameter of the environment where the target battery is located, a second attribute parameter of the battery state and a battery cell system parameter;
the second acquisition module is used for acquiring charging parameters of M stages of the target battery according to the system parameters of the battery core, wherein M is a positive integer;
the third acquisition module is used for acquiring a target voltage value according to the first attribute parameter, the second attribute parameter and the battery cell system parameter;
the fourth acquisition module is used for correcting the cut-off voltage of the charging parameter of the M stage in the charging parameters of the M stages according to the target voltage value to acquire the target charging parameter;
and the determining module is used for determining the charging strategy of the target battery according to the second attribute parameter and the target charging parameter and charging the target battery based on the charging strategy.
To achieve the above object, an embodiment of a third aspect of the present application provides an electronic device, including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the battery charging method provided in the embodiments of the first aspect of the present application.
To achieve the above object, an embodiment of a fourth aspect of the present application proposes a computer-readable storage medium having stored thereon computer instructions for causing a computer to execute the battery charging method provided in the embodiment of the first aspect of the present application.
To achieve the above object, an embodiment of a fifth aspect of the present application proposes a computer program product comprising a computer program which, when executed by a processor, implements the battery charging method provided in the embodiment of the first aspect of the present application.
FIG. 1 is a flow chart of a battery charging method of one embodiment of the present application;
FIG. 2 is a flow chart of a battery charging method of one embodiment of the present application;
FIG. 3 is a schematic diagram of a charge and discharge test at an ambient temperature of 25℃according to one embodiment of the present application;
FIG. 4 is a schematic diagram of a charge and discharge test at an ambient temperature of 45℃according to one embodiment of the present application;
FIG. 5 is a graph showing cell expansion at 45℃ambient temperature according to one embodiment of the present application;
FIG. 6 is a flow chart of a battery charging method of one embodiment of the present application;
FIG. 7 is a flow chart of a battery charging method of one embodiment of the present application;
FIG. 8 is a block diagram of a battery charging apparatus according to one embodiment of the present application;
FIG. 9 is a circuit schematic diagram of a battery charging method of an embodiment of the present application;
fig. 10 is a block diagram of a battery charging apparatus according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
The battery charging method and apparatus according to the embodiments of the present application are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a battery charging method according to an embodiment of the present application, as shown in fig. 1, the method including the steps of:
s101, acquiring a first attribute parameter of an environment where a target battery is located, a second attribute parameter of a battery state and a battery cell system parameter.
In this embodiment of the present application, the temperature of the environment where the target battery is located, the current charging frequency of the target battery, and the like all affect the charging cut-off voltage of the target battery. In some implementations, the first attribute parameter of the target battery includes an ambient temperature at which the target battery is currently located.
The battery cells of the battery are divided into three types of aluminum shell battery cells, soft package battery cells (also called polymer battery cells) and cylindrical battery cells. In general, the battery of the mobile phone adopts an aluminum shell battery core, the digital products such as Bluetooth and the like mostly adopt a soft package battery core, the battery of the notebook computer adopts serial-parallel combination of cylindrical battery cores, and the quality of the battery core directly determines the quality of the rechargeable battery. In some implementations, the cell system parameters of the target battery are parameters of the composition of the anode and cathode materials and electrolyte of the target battery.
In this embodiment of the present application, the second attribute parameter of the battery state of the target battery may be parameters such as a state of charge, a charging cycle number, a total battery capacity, a charging time, and a charging current. The State of charge (SOC) may be used to reflect the remaining capacity of the battery, which is defined numerically as the ratio of the remaining capacity to the battery capacity, and is often expressed as a percentage. The value range is [0,1], the SOC is used for representing the charge state, the battery is completely discharged when SOC=0, and the battery is completely filled when SOC=1.
S102, acquiring charging parameters of M stages of a target battery according to the system parameters of the battery core, wherein M is a positive integer.
The difference of the cell system parameters of the target battery is mainly embodied on the charging parameters, in some implementations, a preset mapping relation exists between the cell system parameters and the charging parameters, and the charging parameters of M stages of the target battery corresponding to the cell system parameters, such as the charging current and the charging voltage of each stage, the charging cut-off voltage and the charging cut-off current, can be obtained according to the mapping relation.
For charging the target battery, a multi-terminal constant-current constant-voltage charging logic is generally adopted, in some implementations, a voltage system with the target battery being 4.45v is taken as an example, M=3 is taken as an illustration, and the charging parameters comprise three stages, namely 12.4A-CC-4.25V and 4.25V-CV-8A;8A-CC-4.4V,4.4V-CV-6A;6A-CC-4.45V,4.45V-CV-350mA. Wherein CC represents constant current charging, and CV represents constant voltage charging. That is, the multi-stage constant-current and constant-voltage charging logic of the target battery is that the charging process of the first stage is that 12.4A is charged to 4.25V in a constant-current manner, and 4.25V is charged to 8A in a constant-voltage manner; the second stage of charging process is that 8A constant current is charged to 4.4V, and 4.4V constant voltage is charged to 6A; the third stage charging process is 6A constant current charging to 4.45V, and 4.45V constant voltage charging to 350mA.
S103, obtaining a target voltage value according to the first attribute parameter, the second attribute parameter and the battery cell system parameter.
In some implementations, the first attribute parameter, the second attribute parameter, the battery cell system parameter and the target voltage value have a mapping relationship, and the target voltage value corresponding to the first attribute parameter, the second attribute parameter and the battery cell system parameter can be obtained according to the mapping relationship.
S104, correcting the cut-off voltage of the charging parameter of the M stages in the charging parameters of the M stages according to the target voltage value, and obtaining the target charging parameter.
In some implementations, the target voltage value is a corrected cutoff voltage of the charging parameter of the M-th stage, and the target voltage value may be used as the cutoff voltage of the charging parameter of the M-th stage in the charging parameters of the M stages, so as to update the cutoff voltage of the charging parameter of the M-th stage and obtain the target charging parameter.
In some implementations, the target voltage value is a reduced voltage value for the current number of cycles, that is, the cutoff voltage for the mth stage of the charging parameters for the M stages is reduced by the target voltage value, thereby generating the target charging parameters for the M stages.
S105, determining a charging strategy of the target battery according to the second attribute parameter and the target charging parameter, and charging the target battery based on the charging strategy.
It should be noted that, since the cutoff voltage of the charging parameter in the mth stage is reduced, if the same charging cutoff current is maintained, the capacity of the target battery is not fully charged, so in order to increase the service time of the battery and improve the use experience of the user, it is necessary to intelligently adjust the continuous charging time after reaching the preset charging cutoff current. In this embodiment of the present application, the charging delay time may be obtained according to the second attribute parameter, that is, the charging is performed on the target battery based on the charging policy, and after the charging phases of M numbers corresponding to the target charging parameter are completed, charging is continued on the target battery for a certain time until the charging delay time is reached, so as to complete charging of the target battery.
In the embodiment of the application, a first attribute parameter of an environment where a target battery is located, a second attribute parameter of a battery state and a battery cell system parameter are obtained; acquiring charging parameters of M stages of a target battery according to the battery cell system parameters, and acquiring a target voltage value according to the first attribute parameters, the second attribute parameters and the battery cell system parameters; correcting the cut-off voltage of the charging parameter in the M stage according to the target voltage value to obtain a target charging parameter; and determining a charging strategy of the target battery according to the second attribute parameter and the target charging parameter, and charging the target battery based on the charging strategy. The battery charging control method and device can flexibly charge according to the target voltage value, balance the battery capacity and the charging time, ensure to delay battery aging, improve the capacity of the full-charge battery as much as possible on the premise of improving the service life of the battery, and improve the service time of the mobile phone after single charging.
Fig. 2 is a flowchart of a battery charging method according to one embodiment of the present application, as shown in fig. 2, including the steps of:
s201, acquiring a first attribute parameter of an environment where a target battery is located, a second attribute parameter of a battery state and a battery cell system parameter.
S202, acquiring charging parameters of M stages of a target battery according to the system parameters of the battery core, wherein M is a positive integer.
The description of step S201 and step S202 may refer to the relevant content in the above facts, and will not be repeated here.
It should be noted that the first attribute parameter includes a current target environmental temperature of the target battery, and the second attribute parameter includes a current target charge cycle number of the target battery.
S203, obtaining the mapping relation between the voltage value and the environment temperature, the charging cycle times and the system parameters of the battery cells according to the historical charging data of the plurality of sample batteries.
Optionally, the charge and discharge test may be performed on the sample cells of the plurality of battery Cell system parameters at a plurality of environmental temperatures, and fig. 3 is a schematic diagram of the charge and discharge test at an environmental temperature of 25 ℃ according to one embodiment of the present application, and as shown in fig. 3, the charge and discharge test is performed on the plurality of sample cells (cells) by taking a cutoff voltage of 4.4 as an example, where the Cell 1-Cell 3 is the 1 st to 200 th cutoff voltages of 4.4V, the 200 st to 400 th cutoff voltages of 4.39V, the reduced voltage value is 10mv, the 400 st to 600 th cutoff voltages of 4.37V, the reduced voltage value is 30mv, the 600 th to 800 th cutoff voltages of 4.3V, and the reduced voltage value is 100mv; cell 4-Cell 6 is the 1 st to 200 th charge cycle cut-off voltage of 4.4V, the 200 th to 400 th charge cycle cut-off voltage of 4.38V, the reduced voltage value of 20mv, the 400 th to 600 th charge cycle cut-off voltage of 4.36V, the reduced voltage value of 40mv, the 600 th to 800 th charge cycle cut-off voltage of 4.3V, the reduced voltage value of 100mv; cell 7-Cell 9 is the 1 st to 200 th charge cycle cut-off voltage of 4.4V, the 200 th to 400 th charge cycle cut-off voltage of 4.37V, the reduced voltage value of 30mv, the 400 th to 600 th charge cycle cut-off voltage of 4.35V, the reduced voltage value of 50mv, the 600 th to 800 th charge cycle cut-off voltage of 4.3V, the reduced voltage value of 100mv; the Cell 10-Cell 12 is the 1 st to 800 th charge cycle number cut-off voltage of 4.4V, and the graph shows that the actual measurement curve of the cyclic voltage drop at 25 ℃ has obviously improved recovery capacity compared with the traditional non-step-down scheme (Cell 10-Cell 12), especially after 300cycle count. Thus, the improvement in capacity fade with cyclically reduced voltage has a significant relationship with cycle count. The voltage value in the embodiment of the application is the cyclic voltage drop.
Fig. 4 is a schematic diagram of a charge-discharge test at an ambient temperature of 45 ℃ according to an embodiment of the present application, and fig. 5 is a schematic diagram of a cell expansion rate at an ambient temperature of 45 ℃ according to an embodiment of the present application, as shown in fig. 4 and 5, according to a actually measured curve of a cyclic voltage drop at an ambient temperature of 45 ℃, the cyclic voltage drop has no significant improvement on the capacity loss of the cell at a high temperature by the first 600 cycle counts, and has significant advantages on the capacity loss and the cell expansion rate improvement at a cycle of greater than 600.
And after the sample battery is subjected to a charge and discharge test, acquiring a cyclic voltage drop value with the minimum capacity attenuation and the corresponding cyclic times thereof, and constructing a mapping relation according to the environment temperature, the voltage value, the charge cyclic times and the cell system parameters of the sample battery in the charge and discharge test.
S204, obtaining a target environment temperature, a target charging cycle number and a candidate voltage value corresponding to the battery cell system parameter according to the mapping relation, and determining the candidate voltage value as a target voltage value.
And obtaining a target voltage value corresponding to the target battery under the target environment temperature, the target charging cycle times and the battery cell system parameters according to the mapping relation.
S205, correcting the cut-off voltage of the charging parameter of the M stages in the charging parameters of the M stages according to the target voltage value, and obtaining the target charging parameter.
Updating the cut-off voltage of the charging parameter at the M stage to be the difference between the cut-off voltage and the target voltage value to generate the target charging parameter.
S206, determining a charging strategy of the target battery according to the second attribute parameter and the target charging parameter, and charging the target battery based on the charging strategy.
The description of step S206 may be referred to the relevant content in the above facts, and will not be repeated here.
According to the embodiment of the application, the mapping relation between the voltage value and the environment temperature, the charging cycle number and the battery cell system parameter can be obtained according to the historical charging data of the plurality of sample batteries, the candidate voltage value corresponding to the target environment temperature, the target charging cycle number and the battery cell system parameter is obtained according to the mapping relation, and the candidate voltage value is determined to be the target voltage value. According to the method and the device, flexible charging can be performed according to the target voltage value, through accurate control of phase charging of the cut-off voltage and the cut-off current in the charging parameters of the M phase, the capacity and the charging time of the battery with more electric quantity balance are guaranteed, the aging of the battery is guaranteed to be delayed, the capacity of the full-charge battery is improved as much as possible under the premise that the service life of the battery is prolonged, and the service time of the mobile phone after single charging is prolonged.
Fig. 6 is a flowchart of a battery charging method according to an embodiment of the present application, as shown in fig. 6, including the steps of:
s601, acquiring a first attribute parameter of an environment where a target battery is located, a second attribute parameter of a battery state and a battery cell system parameter.
S602, acquiring charging parameters of M stages of a target battery according to the system parameters of the battery core, wherein M is a positive integer.
S603, obtaining a target voltage value according to the first attribute parameter, the second attribute parameter and the battery cell system parameter.
S604, correcting the cut-off voltage of the charging parameter of the M stages in the charging parameters of the M stages according to the target voltage value, and obtaining the target charging parameter.
The description of steps S601 to S604 may refer to the relevant content in the above facts, and will not be repeated here.
S605, acquiring the charge delay time of the target battery according to the second attribute parameter and the Mth stage charge parameter.
The second attribute parameter includes a total battery capacity, a first state of charge when charging is started, a current second state of charge, a charging time and a charging current. Alternatively, the gain battery capacity, the starting battery capacity, and the remaining battery capacity may be obtained using the following formulas:
gained_cap＝∫Idt
Initial_cap＝Original_capacity*(SOC 0 -0)
Remaining_cap＝Original_capacity*(1-SOC 1 )
wherein, gained_cap represents the gain battery capacity, that is, the charging capacity is obtained by sampling the current in real time through the current detection resistor and integrating the current in the charging process, I represents the charging current, and t represents the charging time; initial_cap represents the Initial battery capacity, initial_capacity represents the total battery capacity, and SOC 0 Representing a first state of charge; remaining_cap represents Remaining battery capacity, SOC 1 Representing a second state of charge.
And obtaining the predicted full charge capacity according to the gain battery capacity, the initial battery capacity and the residual battery capacity. Alternatively, the predicted full charge capacity may be obtained using the following formula:
Full_charge_capacity＝Initial_cap+Remaining_cap+gained_cap
here, full_charge_capacity represents the predicted Full charge capacity.
And obtaining the residual battery capacity according to the total battery capacity and the predicted full charge capacity. Alternatively, the remaining battery capacity may be obtained using the following formula:
DeltaQ＝Original_capacity-Full_charge_capacity
wherein DeltaQ represents the remaining battery capacity.
And acquiring the charging delay time according to the remaining battery capacity and the charging cut-off current in the charging parameters of the M stage. Alternatively, the charge delay time may be obtained using the following formula:
Delta_t＝Delta_Q/I_term_battery
wherein Delta_t represents the charge delay time, and I_term_battery represents the charge cutoff current of the M-th stage in the charge parameters before the cyclic voltage drop.
And S606, determining a charging strategy of the target battery according to the charging delay time and the target charging parameter, and charging the target battery based on the charging strategy.
The charging strategy in the embodiment of the application is: and charging the target battery according to the charging parameters of each stage in the target charging parameters until the cut-off current of the charging parameters of the M stage is reached, continuously charging the target battery, obtaining the time for continuous charging until the time for continuous charging is greater than or equal to the charging delay time, and completing the charging of the target battery.
According to the embodiment of the application, the charging delay time of the target battery is obtained according to the second attribute parameter and the charging parameter of the M stage, the charging strategy of the target battery is determined according to the charging delay time and the target charging parameter, and the target battery is charged based on the charging strategy. According to the embodiment of the application, flexible charging can be performed according to the target voltage value, through the accurate control of stage charging of the cut-off voltage and the cut-off current in the charging parameters of the M stage, the capacity and the charging time of the battery with more electric quantity balance are guaranteed, the aging of the battery is guaranteed to be delayed, the capacity of the full-charge battery is improved as much as possible under the premise of prolonging the service life of the battery, and the service time of the mobile phone after single charging is prolonged.
FIG. 7 is a flowchart of a battery charging method according to an embodiment of the present application, as shown in FIG. 7, in which a target ambient temperature of a target battery is recorded within a period of time, and a target charge cycle number and a battery cell system parameter of the target battery are obtained; obtaining target charging parameters according to the target environment temperature, the target charging cycle times and the battery cell system parameters, obtaining charging delay time according to the battery state and the battery capacity, charging the target battery according to the charging parameters of each stage in the target charging parameters until the cut-off current of the charging parameters of the M stage is reached, continuously charging the target battery, obtaining the continuous charging time by using a timer, and completing the charging of the target battery in response to the continuous charging time being greater than or equal to the charging delay time.
Fig. 8 is a block diagram of a battery charging device according to an embodiment of the present application, and fig. 9 is a circuit diagram illustrating a battery charging method according to an embodiment of the present application, as shown in fig. 8 and 9, in which communication between an application processor (application processor, AP) and a fuel gauge is established based on a bidirectional two-wire synchronous serial bus (Inter-Integrated Circuit, I2C) to obtain first attribute information and second attribute information of a target battery, and a power management integrated circuit (Power Management Integrated Circuit, PMIC) and a charge pump are controlled to regulate a charging voltage and a charging current through the I2C bus. In the figure, the Battery containing the cell plus protection circuit board is shown, and the AP is connected to the target Battery (PACK) containing the cell (Battery) plus protection circuit board through the system power management interface (System Power Management Interface, SPMI). Alternatively, the charge pump may be a dual SMB1396 power management chip. Wherein, thermo represents a thermistor and a protector IC represents a protection circuit.
According to the embodiment of the application, flexible charging can be performed according to the target voltage value, through the accurate control of stage charging of the cut-off voltage and the cut-off current in the charging parameters of the M stage, the capacity and the charging time of the battery with more electric quantity balance are guaranteed, the aging of the battery is guaranteed to be delayed, the capacity of the full-charge battery is improved as much as possible under the premise of prolonging the service life of the battery, and the service time of the mobile phone after single charging is prolonged.
Fig. 10 is a block diagram of a battery charging device according to the present application, and as shown in fig. 10, the battery charging device 1000 includes:
a first obtaining module 1010, configured to obtain a first attribute parameter of an environment where the target battery is located, a second attribute parameter of a battery state, and a battery cell system parameter;
a second obtaining module 1020, configured to obtain charging parameters of M stages of the target battery according to the parameters of the battery cell system, where M is a positive integer;
a third obtaining module 1030, configured to obtain a target voltage value according to the first attribute parameter, the second attribute parameter, and the battery cell system parameter;
a fourth obtaining module 1040, configured to correct, according to the target voltage value, a cutoff voltage of an mth stage charging parameter among the charging parameters of the M stages, and obtain a target charging parameter;
the determining module 1050 is configured to determine a charging policy of the target battery according to the second attribute parameter and the target charging parameter, and charge the target battery based on the charging policy.
In some implementations, the first attribute parameter includes a current target ambient temperature of the target battery, the second attribute parameter includes a current target number of charge cycles of the target battery, and the first acquisition module 1010 is further configured to:
acquiring a mapping relation between a voltage value and environmental temperature, charging cycle times and battery cell system parameters according to historical charging data of a plurality of sample batteries;
and obtaining a candidate voltage value corresponding to the target environment temperature, the target charging cycle times and the battery cell system parameters according to the mapping relation, and determining the candidate voltage value as a target voltage value.
In some implementations, the determination module 1050 is further configured to:
acquiring the charging delay time of the target battery according to the second attribute parameter and the charging parameter of the M stage;
and determining the charging strategy of the target battery according to the charging delay time and the target charging parameter.
In some implementations, the second attribute parameters include a total capacity of the battery, a first state of charge at the beginning of the charge, a current second state of charge, a charge time, and a charge current, the determining module 1050 further configured to:
acquiring a gain battery capacity according to the charging time and the charging current, acquiring an initial battery capacity according to the total battery capacity and the first state of charge, and acquiring a residual battery capacity according to the total battery capacity and the second state of charge;
acquiring predicted full charge capacity according to the gain battery capacity, the initial battery capacity and the residual battery capacity;
obtaining the residual battery capacity according to the total battery capacity and the predicted full charge capacity;
and acquiring the charging delay time according to the remaining battery capacity and the charging cut-off current in the charging parameters of the M stage.
In some implementations, the determination module 1050 is further configured to:
charging the target battery according to the charging parameters of each stage in the target charging parameters until the cut-off current of the charging parameters of the M stage is reached, and continuously charging the target battery to obtain the time for continuously charging;
and completing the charging of the target battery in response to the time to continue charging being greater than or equal to the charging delay time.
In some implementations, the fourth acquisition module 1040 is further to:
updating the cut-off voltage of the charging parameter at the M stage to be the difference between the cut-off voltage and the target voltage value to generate the target charging parameter.
According to the embodiment of the application, flexible charging can be performed according to the target voltage value, through the accurate control of stage charging of the cut-off voltage and the cut-off current in the charging parameters of the M stage, the capacity and the charging time of the battery with more electric quantity balance are guaranteed, the aging of the battery is guaranteed to be delayed, the capacity of the full-charge battery is improved as much as possible under the premise of prolonging the service life of the battery, and the service time of the mobile phone after single charging is prolonged.
Based on the same application conception, the embodiment of the application also provides electronic equipment.
Fig. 11 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 11, the electronic device 1100 includes a storage medium 1110, a processor 1120, and a computer program product stored in the memory 1110 and executable on the processor 1120, wherein the processor implements the method for detecting the vibration damping device of the offshore floating device when executing the computer program.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Based on the same application concept, the present embodiments also provide a computer-readable storage medium having stored thereon computer instructions for causing a computer to perform the battery charging method in the above embodiments.
Based on the same application concept, the embodiments of the present application also provide a computer program product comprising a computer program which, when executed by a processor, performs the battery charging method of the above embodiments.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.
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 application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the invention. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
Claims (14)
- A battery charging method, comprising:acquiring a first attribute parameter of an environment where a target battery is located, a second attribute parameter of a battery state and a battery cell system parameter;acquiring charging parameters of M stages of the target battery according to the battery cell system parameters, wherein M is a positive integer;acquiring a target voltage value according to the first attribute parameter, the second attribute parameter and the battery cell system parameter;correcting the cut-off voltage of the charging parameter of the M stage in the charging parameters of the M stages according to the target voltage value to obtain a target charging parameter;and determining a charging strategy of the target battery according to the second attribute parameter and the target charging parameter, and charging the target battery based on the charging strategy.
- The method of claim 1, wherein the first attribute parameter comprises a current target ambient temperature of the target battery, the second attribute parameter comprises a current target number of charge cycles of the target battery, and the obtaining a target voltage value based on the first attribute parameter, the second attribute parameter, and the battery cell system parameter comprises:acquiring a mapping relation between a voltage value and environmental temperature, the number of charging cycles and the parameters of the battery cell system according to historical charging data of a plurality of sample batteries;and acquiring a candidate voltage value corresponding to the target environment temperature, the target charging cycle times and the battery cell system parameters according to the mapping relation, and determining the candidate voltage value as the target voltage value.
- The method according to claim 1 or 2, wherein said determining a charging strategy of the target battery from the second attribute parameter and the target charging parameter comprises:acquiring the charging delay time of the target battery according to the second attribute parameter and the charging parameter of the M stage;and determining the charging strategy of the target battery according to the charging delay time and the target charging parameter.
- The method of claim 3, wherein the second attribute parameters include a total battery capacity, a first state of charge at the start of charging, a current second state of charge, a charging time, and a charging current, and wherein the obtaining the charge delay time of the target battery based on the second attribute parameters and the mth phase charging parameters includes:acquiring a gain battery capacity according to the charging time and the charging current, acquiring an initial battery capacity according to the total battery capacity and the first state of charge, and acquiring a residual battery capacity according to the total battery capacity and the second state of charge;acquiring a predicted full charge capacity according to the gain battery capacity, the initial battery capacity and the residual battery capacity;obtaining the residual battery capacity according to the total battery capacity and the predicted full charge capacity;and acquiring the charging delay time according to the residual battery capacity and the charging cut-off current in the charging parameters of the M stage.
- The method of claim 3, wherein the charging the target battery based on the charging policy comprises:charging the target battery according to the charging parameters of each stage of the target charging parameters until the cut-off current of the charging parameters of the M stage is reached, and continuously charging the target battery to obtain the time for continuously charging;and completing the charging of the target battery in response to the time to continue charging being greater than or equal to the charging delay time.
- The method according to claim 1 or 2, wherein the correcting the cutoff voltage of the mth phase charging parameter of the M phases of charging parameters according to the target voltage value, to obtain the target charging parameter, includes:updating the cut-off voltage of the M-stage charging parameter to be the difference between the cut-off voltage and the target voltage value to generate the target charging parameter.
- A battery charging apparatus, comprising:the first acquisition module is used for acquiring a first attribute parameter of the environment where the target battery is located, a second attribute parameter of the battery state and a battery cell system parameter;the second acquisition module is used for acquiring charging parameters of M stages of the target battery according to the battery cell system parameters, wherein M is a positive integer;the third acquisition module is used for acquiring a target voltage value according to the first attribute parameter, the second attribute parameter and the battery cell system parameter;a fourth obtaining module, configured to correct a cutoff voltage of an mth stage charging parameter among the charging parameters of the M stages according to the target voltage value, to obtain a target charging parameter;and the determining module is used for determining the charging strategy of the target battery according to the second attribute parameter and the target charging parameter and charging the target battery based on the charging strategy.
- The apparatus of claim 7, wherein the first attribute parameter comprises a current target ambient temperature of a target battery, the second attribute parameter comprises a current target number of charge cycles of the target battery, and the first acquisition module is further configured to:acquiring a mapping relation between a voltage value and environmental temperature, the number of charging cycles and the parameters of the battery cell system according to historical charging data of a plurality of sample batteries;and acquiring candidate voltage values corresponding to the target environment temperature, the target charging cycle times and the battery cell system parameters according to the mapping relation, and determining the candidate voltage values as the target voltage values.
- The apparatus of claim 7 or 8, wherein the determining module is further configured to:acquiring the charging delay time of the target battery according to the second attribute parameter and the charging parameter of the M stage;and determining the charging strategy of the target battery according to the charging delay time and the target charging parameter.
- The apparatus of claim 9, wherein the second attribute parameters include a total battery capacity, a first state of charge at the start of charging, a present second state of charge, a charging time, and a charging current, the determining module further configured to:acquiring a gain battery capacity according to the charging time and the charging current, acquiring an initial battery capacity according to the total battery capacity and the first state of charge, and acquiring a residual battery capacity according to the total battery capacity and the second state of charge;acquiring a predicted full charge capacity according to the gain battery capacity, the initial battery capacity and the residual battery capacity;obtaining the residual battery capacity according to the total battery capacity and the predicted full charge capacity;and acquiring the charging delay time according to the residual battery capacity and the charging cut-off current in the charging parameters of the M stage.
- The apparatus of claim 9, wherein the determining module is further configured to:charging the target battery according to the charging parameters of each stage of the target charging parameters until the cut-off current of the charging parameters of the M stage is reached, and continuously charging the target battery to obtain the time for continuously charging;and completing the charging of the target battery in response to the time to continue charging being greater than or equal to the charging delay time.
- The apparatus of claim 7 or 8, wherein the fourth acquisition module is further configured to:updating the cut-off voltage of the M-stage charging parameter to be the difference between the cut-off voltage and the target voltage value to generate the target charging parameter.
- An electronic device, comprising:at least one processor; anda memory communicatively coupled to the at least one processor; wherein,the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-6.
- A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any one of claims 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2022/099968 WO2023245392A1 (en) | 2022-06-20 | 2022-06-20 | Battery charging method and apparatus therefor |
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| CN110758170B (en) * | 2018-07-26 | 2022-01-07 | 比亚迪股份有限公司 | Battery charging method and device, storage medium, vehicle and cloud server |
| CN111406353A (en) * | 2018-09-29 | 2020-07-10 | Oppo广东移动通信有限公司 | Quick charging method and device for battery, equipment to be charged and charging system |
| CN112542863B (en) * | 2019-09-23 | 2023-07-18 | 北京小米移动软件有限公司 | Charging method and device, and readable storage medium |
| CN113424391A (en) * | 2020-02-06 | 2021-09-21 | 宁德新能源科技有限公司 | Charging method, electronic device, and storage medium |
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