CN114142110A - Battery control method, device, electronic equipment and storage medium - Google Patents
Battery control method, device, electronic equipment and storage medium Download PDFInfo
- Publication number
- CN114142110A CN114142110A CN202111440584.0A CN202111440584A CN114142110A CN 114142110 A CN114142110 A CN 114142110A CN 202111440584 A CN202111440584 A CN 202111440584A CN 114142110 A CN114142110 A CN 114142110A
- Authority
- CN
- China
- Prior art keywords
- battery
- full charge
- charge capacity
- limit voltage
- reference full
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 54
- 230000014759 maintenance of location Effects 0.000 claims abstract description 60
- 230000006870 function Effects 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000004891 communication Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000002238 attenuated effect Effects 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the application discloses a battery control method, a device, an electronic device and a storage medium, which are used for obtaining the decrement of the actual full charge capacity of a battery relative to the initial reference full charge capacity of the battery; adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from the first reference full charge capacity to the second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity. Based on the application, the reference full charge capacity of the electronic equipment is gradually increased according to the attenuation of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery, and the capacity retention rate and the cycle life of the battery are improved.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a battery control method and apparatus, an electronic device, and a storage medium.
Background
For electronic equipment using rechargeable batteries, the capacity retention rate and cycle life of the batteries are important indexes for measuring the electronic equipment, and the current batteries in the electronic equipment have lower capacity retention rate and shorter cycle life.
Therefore, how to improve the capacity retention rate and cycle life of the battery becomes a technical problem to be solved urgently.
Disclosure of Invention
The application aims to provide a battery control method, a battery control device, electronic equipment and a storage medium, and the method comprises the following technical scheme:
a battery control method, the method comprising:
acquiring the attenuation quantity of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery;
adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from a first reference full charge capacity to a second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity.
Preferably, the acquiring a decrement of the actual full charge capacity of the battery relative to an initial reference full charge capacity of the battery includes:
acquiring a decrement of an actual full charge capacity of a battery relative to an initial reference full charge capacity of the battery when a battery capacity dynamic compensation function is enabled;
the method further comprises the following steps:
under the condition that the dynamic battery capacity compensation function is closed, adjusting the reference full charge capacity of the battery to a target reference full charge capacity; the target reference full charge capacity is greater than or equal to the second reference full charge capacity.
In the above method, it is preferable that the adjusting of the reference full charge capacity of the battery based on the attenuation amount includes:
adjusting the upper limit voltage or the lower limit voltage of the battery according to the attenuation amount, so that the difference value between the upper limit voltage and the lower limit voltage of the battery is adjusted from a first difference value to a second difference value; the second difference is greater than the first difference;
when the difference between the upper limit voltage and the lower limit voltage of the battery is the first difference, the reference full charge capacity of the battery is the first reference full charge capacity; and when the difference between the upper limit voltage and the lower limit voltage of the battery is the second difference, the reference full charge capacity of the battery is the second reference full charge capacity.
In the above method, it is preferable that the adjusting the upper limit voltage of the battery according to the attenuation amount includes:
determining an upper limit voltage regulating quantity according to the attenuation quantity;
and increasing the upper limit voltage of the battery by the upper limit voltage adjustment amount, so that the difference value of the upper limit voltage and the lower limit voltage of the battery is adjusted to a second difference value from a first difference value.
In the above method, it is preferable that the adjusting the lower limit voltage of the battery according to the attenuation amount includes:
determining a lower limit voltage regulating quantity according to the attenuation quantity;
and reducing the lower limit voltage of the battery by the lower limit voltage adjustment amount, so that the difference value of the upper limit voltage and the lower limit voltage of the battery is adjusted to be a second difference value from a first difference value.
The above method, preferably, further comprises:
when the upper limit voltage of the battery reaches a target upper limit voltage, forbidding adjustment of the upper limit voltage of the battery; or,
and when the lower limit voltage of the battery reaches the target lower limit voltage, forbidding the adjustment of the lower limit voltage of the battery.
The above method, preferably, further comprises:
acquiring the capacity retention rate of the battery and the charge-discharge cycle number of the battery; the capacity retention ratio is a ratio of an actual full charge capacity of the battery to the initial reference full charge capacity; the initial reference full charge capacity is less than or equal to the first reference full charge capacity;
and displaying the capacity retention rate and the number of charge and discharge cycles.
In the above method, preferably, the capacity retention rate of the battery is a first capacity retention rate when the reference full charge capacity of the battery is a first reference full charge capacity, and the capacity retention rate of the battery is a second capacity retention rate when the reference full charge capacity of the battery is a second reference full charge capacity;
the first capacity retention rate is equal or approximately equal to the second capacity retention rate.
A battery control apparatus comprising:
the system comprises an acquisition module, a judgment module and a control module, wherein the acquisition module is used for acquiring the attenuation of the actual full charge capacity of a battery relative to the initial reference full charge capacity of the battery;
the adjusting module is used for adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from a first reference full charge capacity to a second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity.
An electronic device, comprising:
a memory for storing a program;
and the processor is used for calling and executing the program in the memory, and realizing the steps of the battery control method according to any one of the above items by executing the program.
A readable storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of the battery control method as claimed in any one of the preceding claims.
According to the scheme, the attenuation of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery is acquired by the battery control method, the battery control device, the electronic equipment and the storage medium; adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from the first reference full charge capacity to the second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity. Based on the application, the reference full charge capacity of the electronic equipment is gradually increased according to the attenuation of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery, and the capacity retention rate and the cycle life of the battery are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a flowchart of an implementation of a battery control method according to an embodiment of the present disclosure;
FIG. 2 is a flowchart of an implementation of adjusting the upper limit voltage of the battery according to the amount of attenuation provided by the embodiment of the present application;
FIG. 3 is a flowchart of an implementation of adjusting the lower limit voltage of the battery according to the decrement provided by the embodiment of the present application;
fig. 4 is a flowchart of an implementation of outputting information related to a battery according to an embodiment of the present disclosure;
fig. 5 is a flowchart of a battery control method according to an embodiment of the present application;
FIG. 6 is a comparison of a prior art battery control method provided by an embodiment of the present application and a battery control method of the present application;
fig. 7 is a schematic structural diagram of a battery control apparatus according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than described or illustrated herein.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.
One characteristic of a rechargeable battery is that the full charge capacity of the battery decays after a certain period of use, for example, the full charge capacity of the rechargeable battery is 45000mWh when the rechargeable battery leaves a factory, the full charge capacity of the battery may decrease to 40000mWh after a plurality of charge and discharge cycles, and the full charge capacity of the battery may continue to decrease as the number of charge and discharge cycles increases.
At present, when a provider of an electronic device (e.g., a mobile phone, a notebook computer, a tablet computer, etc.) uses a rechargeable battery in the electronic device, a full charge capacity of the battery is generally a design capacity of the battery, that is, a full charge capacity of the rechargeable battery when the rechargeable battery leaves a factory, for example, the design capacity of the battery is 45000mWh, and when the rechargeable battery is used in the electronic device, the full charge capacity is 45000mWh, but the capacity retention rate and the cycle life of the rechargeable battery are both low due to the arrangement mode.
The following describes the scheme of the present application. The Battery Management method provided by the embodiment of the application can be realized by a Battery Management System (BMS).
As shown in fig. 1, a flowchart for implementing a battery control method provided in an embodiment of the present application may include:
step S101: a decrement of an actual full charge capacity of the battery with respect to an initial reference full charge capacity of the battery is obtained.
The initial reference full charge capacity here refers to a reference full charge capacity of the battery when the electronic device to which the battery belongs is shipped from the factory. In the embodiment of the present application, the initial reference full charge capacity of the battery is smaller than the factory full charge capacity of the battery, for example, the factory full charge capacity of the battery is 45000mWh, and the initial reference full charge capacity here is 40000 mWh. Of course, the numerical values are only examples, and other values may be set in practical applications as long as the initial reference full charge capacity of the battery is smaller than the factory full charge capacity of the battery.
The decrement in the actual full charge capacity of the battery with respect to the initial reference full charge capacity of the battery may be periodically acquired.
Step S102: adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from a first reference full charge capacity to a second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity.
The larger the above-mentioned attenuation amount, the larger the second reference full charge capacity, that is, the value of the second reference full charge capacity is positively correlated with the above-mentioned attenuation amount.
By increasing the reference full charge capacity of the battery, the actual full charge capacity of the battery can be increased, i.e. the reserved capacity is used to compensate the capacity lost by the battery due to aging degradation. Based on the application, the reference full charge capacity of the battery is increased, so that the actual full charge capacity of the battery reaches the initial reference full charge capacity, the actual full charge capacity of the battery is kept at the initial reference full charge capacity before the reserved capacity of the battery is released, and the capacity retention rate of the battery is always maintained at 100% or close to 100% before the reserved capacity of the battery is released.
According to the battery control method provided by the embodiment of the application, the reference full charge capacity of the electronic equipment is gradually improved according to the attenuation of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery, the dynamic compensation function of the battery capacity is realized, and therefore the capacity retention rate and the cycle life of the battery are improved.
Alternatively, in order to avoid power consumption caused by frequent adjustment of the reference capacity of the battery, when the reference full charge capacity of the battery is adjusted according to the attenuation amount, it may be determined whether the attenuation amount reaches a target attenuation amount, and if the attenuation amount reaches the target attenuation amount (i.e., the attenuation amount is greater than or equal to the target attenuation amount), the reference full charge capacity of the battery may be adjusted according to the attenuation amount, and if the attenuation amount is less than the target attenuation amount, the reference full charge capacity may not be adjusted.
Optionally, when the reference full charge capacity of the battery is adjusted according to the attenuation, it may be determined whether the reference full charge capacity of the battery reaches the target reference full charge capacity, if the reference full charge capacity of the battery does not reach the target reference full charge capacity, the reference full charge capacity of the battery is adjusted according to the attenuation, and if the reference full charge capacity of the battery reaches the target reference full charge capacity, the reference full charge capacity of the battery is prohibited from being adjusted, so that the reference full charge capacity is maintained as the target reference full charge capacity.
The target reference full charge capacity here is the factory design capacity of the battery. Based on this, when the reference full charge capacity of the battery is adjusted, the maximum reference full charge capacity of the battery is the target reference full charge capacity, i.e., the second reference full charge capacity is less than or equal to the target reference full charge capacity.
In an optional embodiment, in order to meet different user requirements, for example, some users may not wish to reserve battery capacity because of a high update frequency of the mobile phone, and may turn off the battery control method. Based on this, one implementation of the above-mentioned obtaining the attenuation amount of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery may be:
in the case where the battery capacity dynamic compensation function is enabled, a decrement in an actual full charge capacity of the battery with respect to an initial reference full charge capacity of the battery is acquired.
Further, under the condition that the dynamic battery capacity compensation function is closed, the reference full charge capacity of the battery is adjusted to the target reference full charge capacity; the target reference full charge capacity is greater than or equal to the second reference full charge capacity.
As an example, an interactive switch may be provided, which a user turns on (i.e., enables) or turns off the above-described battery control method to enable or turn off the battery capacity dynamic compensation function. Executing the battery control method to enable the battery capacity dynamic compensation function under the condition that the battery control method is started; otherwise, the reserved capacity is completely released, namely the reference full charge capacity of the battery is adjusted to the target reference full charge capacity.
When the battery is charged, the voltage of the battery is gradually increased, and when the voltage of the battery reaches an upper limit value (recorded as charging upper limit voltage or upper limit voltage), the battery is stopped to be charged; when the battery is discharged, the voltage of the battery is gradually reduced, and when the voltage of the battery reaches a lower limit value (which is recorded as a discharge lower limit voltage or a lower limit voltage), the battery discharge is stopped, and at this time, the electronic device is shut down.
The reference full charge capacity of the battery is related to a difference between the upper charge limit voltage and the lower discharge limit voltage of the battery, and generally, the larger the difference between the upper charge limit voltage and the lower discharge limit voltage of the battery is, the larger the reference full charge capacity is, and conversely, the smaller the difference between the upper charge limit voltage and the lower discharge limit voltage of the battery is, the smaller the reference full charge capacity is.
Based on this, an implementation manner of adjusting the reference full charge capacity of the battery according to the above attenuation amount according to the embodiment of the present application may be as follows:
adjusting the upper limit voltage (namely, charging upper limit voltage) and/or the lower limit voltage (namely, charging lower limit voltage) of the battery according to the attenuation amount, so that the difference value between the upper limit voltage and the lower limit voltage of the battery is adjusted from a first difference value to a second difference value; the second difference is greater than the first difference.
When the difference value between the upper limit voltage and the lower limit voltage of the battery is a first difference value, the reference full charge capacity of the battery is a first reference full charge capacity; when the difference between the upper limit voltage and the lower limit voltage of the battery is a second difference, the reference full charge capacity of the battery is a second reference full charge capacity.
As an example, each time the reference full charge capacity of the battery is adjusted according to the amount of attenuation, only one of the upper limit voltage and the lower limit voltage of the battery may be adjusted, or the upper limit voltage and the lower limit voltage of the battery may be adjusted at the same time. When the upper limit voltage is adjusted, the upper limit voltage is adjusted to be higher, and when the lower limit voltage is adjusted, the lower limit voltage is adjusted to be lower.
As an example, in the case of adjusting only the upper limit voltage or the lower limit voltage each time, in the entire control process before the reserved capacity is completely released, one of the items may be adjusted first, and after the adjustment of the one item is completed, the other item may be adjusted. For example, in the initial stage of using the battery, only the upper limit voltage of the battery may be adjusted each time, and after the upper limit voltage of the battery reaches the target upper limit voltage, the adjustment of the lower limit voltage of the battery may be started until the lower limit voltage of the battery reaches the target lower limit voltage. For another example, in the initial stage of using the battery, only the lower limit voltage of the battery may be adjusted each time, and after the lower limit voltage of the battery reaches the target lower limit voltage, the adjustment of the upper limit voltage of the battery is started until the upper limit voltage of the battery reaches the target upper limit voltage.
As an example, in the case of adjusting only the upper limit voltage or the lower limit voltage each time, the upper limit voltage and the lower limit voltage may be alternately adjusted in the entire control process until the reserve capacity is completely released, for example, the upper limit voltage of the battery is adjusted according to the decrement of the actual full charge capacity of the battery from the initial reference full charge capacity of the battery, the lower limit voltage of the battery is adjusted according to the decrement of the actual full charge capacity of the battery from the initial reference full charge capacity of the battery next time, the upper limit voltage of the battery is adjusted according to the decrement of the actual full charge capacity of the battery from the initial reference full charge capacity of the battery next time, the lower limit voltage of the battery is adjusted according to the decrement of the actual full charge capacity of the battery from the initial reference full charge capacity of the battery next time, … … and so on, until the upper limit voltage of the battery reaches the target upper limit voltage and the lower limit voltage of the battery reaches the target lower limit voltage.
Further, when the upper limit voltage of the battery reaches the target upper limit voltage, the adjustment of the upper limit voltage of the battery is prohibited.
Further, when the lower limit voltage of the battery reaches the target lower limit voltage, the adjustment of the lower limit voltage of the battery is prohibited.
When the upper limit voltage of the battery reaches the target upper limit voltage and the lower limit voltage of the battery reaches the target lower limit voltage, the reference full charge capacity of the battery reaches the factory design capacity of the battery. Thereafter, the above-described battery control method, i.e., the dynamic compensation of the battery capacity is stopped, is not performed any more.
In an alternative embodiment, a flowchart of the adjusting the upper limit voltage of the battery according to the attenuation amount is shown in fig. 2, and may include: :
step S201: and determining the upper limit voltage regulating quantity according to the attenuation quantity.
The upper limit voltage adjustment amount may be determined according to a correspondence of a preset attenuation amount and the upper limit voltage adjustment amount. Or,
the upper limit voltage adjustment amount may be determined from a functional relationship between the upper limit voltage adjustment amount and the attenuation amount of the battery (referred to as a first functional relationship), that is, the upper limit voltage adjustment amount calculated from the attenuation amount and the first functional relationship. The first functional relationship between the upper limit voltage and the attenuation of the battery may be a linear relationship or a nonlinear relationship, and the present application is not particularly limited.
The upper limit voltage adjustment amount is positively correlated with the attenuation amount, namely, the larger the attenuation amount of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery is, the larger the upper limit voltage adjustment amount is; conversely, the smaller the decrement of the actual full charge capacity of the battery with respect to the initial reference full charge capacity of the battery, the smaller the upper limit voltage adjustment amount.
Step S202: and increasing the upper limit voltage of the battery by the determined upper limit voltage adjustment amount, so that the difference value of the upper limit voltage and the lower limit voltage of the battery is adjusted to a second difference value from a first difference value.
The second difference is the sum of the first difference and the upper limit voltage regulating quantity.
The upper limit voltage here refers to the real-time upper limit voltage of the battery, namely: if the upper limit voltage of the battery is adjusted for the first time, the initial upper limit voltage of the battery is increased by the upper limit voltage adjustment amount, and if the upper limit voltage of the battery is not adjusted for the first time, the upper limit voltage of the battery after the last adjustment is increased by the upper limit voltage adjustment amount.
In an alternative embodiment, a flowchart of the above-mentioned implementation of adjusting the lower limit voltage of the battery according to the attenuation amount is shown in fig. 3, and may include:
step S301: and determining the lower limit voltage regulating quantity according to the attenuation quantity.
The lower limit voltage adjustment amount may be determined according to a correspondence between a preset attenuation amount and the lower limit voltage adjustment amount. Or,
the lower limit voltage adjustment amount may be determined from a functional relationship (described as a second functional relationship) between the lower limit voltage adjustment amount and the attenuation amount of the battery, that is, the lower limit voltage adjustment amount calculated from the attenuation amount and the first functional relationship. The first functional relationship between the lower limit voltage of the battery and the attenuation amount may be a linear relationship or a nonlinear relationship, and the present application is not particularly limited.
The lower limit voltage adjustment amount is positively correlated with the attenuation amount, namely, the larger the attenuation amount of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery is, the larger the lower limit voltage adjustment amount is; conversely, the smaller the decrement of the actual full charge capacity of the battery with respect to the initial reference full charge capacity of the battery, the smaller the lower limit voltage adjustment amount.
Step S302: and reducing the lower limit voltage of the battery by the lower limit voltage regulating quantity, so that the difference value between the upper limit voltage and the lower limit voltage of the battery is regulated to be a second difference value from a first difference value.
The second difference is the sum of the first difference and the lower limit voltage regulating quantity.
The lower limit voltage here refers to the real-time lower limit voltage of the battery, namely: if the lower limit voltage of the battery is adjusted for the first time, the initial lower limit voltage of the battery is reduced by the lower limit voltage adjustment amount, and if the lower limit voltage of the battery is not adjusted for the first time, the lower limit voltage of the battery after the last adjustment is reduced by the lower limit voltage adjustment amount.
Further, the battery control method provided by the embodiment of the application can also record the number of charge and discharge cycles of the battery. Based on this, the battery control method provided in the embodiment of the present application may further include a battery related information output process, and an implementation flowchart of outputting the battery related information provided in the embodiment of the present application is shown in fig. 4, and may include:
step S401: the capacity retention rate of the battery and the number of charge and discharge cycles of the battery were obtained. The capacity retention rate of the battery is the ratio of the actual full charge capacity of the battery to the initial standard full charge capacity of the battery; the initial reference full charge capacity is less than or equal to the first reference full charge capacity. That is, the first reference full charge capacity may be an initial reference full charge capacity of the battery or may be a reference full charge capacity after the adjustment.
Step S402: showing capacity retention rate and number of charge and discharge cycles.
When the reference full charge capacity of the battery is a first reference full charge capacity, the capacity retention rate of the battery is a first capacity retention rate, and when the reference full charge capacity of the battery is a second reference full charge capacity, the capacity retention rate of the battery is a second capacity retention rate;
the first capacity retention rate is equal or approximately equal to the second capacity retention rate.
In an optional embodiment, the charge and discharge cycle number of the battery can be recorded in real time, the capacity retention rate of the battery can be periodically calculated, and the capacity retention rate and the charge and discharge cycle number of the battery can be read and displayed when the battery information query instruction is obtained. Therefore, the capacity retention rate and the charge-discharge cycle number of the battery can be rapidly displayed when the battery information query instruction is acquired.
In an optional embodiment, the number of charge and discharge cycles of the battery can be recorded in real time, the capacity retention rate of the battery is calculated when the battery information query instruction is obtained, and then the capacity retention rate of the battery and the read number of charge and discharge cycles are displayed. This can ensure the real-time property of the battery capacity retention rate.
To more clearly illustrate the differences between the present application and the prior art, the effectiveness of the present application will now be described with reference to specific examples. In this example, the initial upper limit voltage of the battery is 4.35V, the initial lower limit voltage is 3.4V, and the reference full charge capacity of the battery at this time is the initial reference full charge capacity.
As shown in fig. 5, a flowchart of a battery control method according to an embodiment of the present application is provided, in this example, a decrement of an actual full charge capacity of a battery relative to an initial reference full charge capacity of the battery is monitored in real time, and when the decrement reaches 1%, the reference full charge capacity of the battery is increased according to the decrement, so that the actual full charge capacity of the battery still reaches the initial reference full charge capacity, and this cycle is repeated for a plurality of times until an upper limit voltage of the battery reaches a limit upper limit voltage, that is, 4.4V, and a lower limit voltage of the battery reaches a limit lower limit voltage, that is, 3V.
As shown in fig. 6, a comparison graph of a prior art battery control method provided in an embodiment of the present application and a battery control method of the present application is provided; the left graph is a schematic diagram showing changes in the capacity retention rate and cycle count of the battery according to the conventional battery control method, and the right graph is a schematic diagram showing changes in the capacity retention rate and cycle count of the battery according to the battery control method of the present application, in which the horizontal axis shows the charge/discharge cycle count and the vertical axis shows the actual full charge capacity. It can be seen that:
based on the prior art, when the number of charge and discharge cycles is about 400, the actual capacity retention rate of the battery is attenuated to 80% of the reference full charge capacity of the battery (namely, the initial reference full charge capacity of the battery), and when the number of charge and discharge cycles reaches 1000, the actual capacity retention rate of the battery is already attenuated to 60% of the reference full charge capacity of the battery, so that the capacity retention rate and the cycle life are low.
Based on the application, when the number of charge and discharge cycles is about 400, the actual capacity retention rate of the battery is still kept above 90% of the initial standard full charge capacity of the battery and is close to 100%, when the number of charge and discharge cycles reaches 600, the actual capacity retention rate of the battery is still about 90%, when the number of charge and discharge cycles reaches 1000, the actual capacity retention rate of the battery is attenuated to about 80%, and when the number of charge and discharge cycles reaches 1500, the actual capacity retention rate of the battery is attenuated to 65%.
Corresponding to the method embodiment, an embodiment of the present application further provides a battery control apparatus, and a schematic structural diagram of the battery control apparatus provided in the embodiment of the present application is shown in fig. 7, and the battery control apparatus may include:
an acquisition module 701 and an adjustment module 702; wherein,
the obtaining module 701 is configured to obtain a decrement of an actual full charge capacity of a battery relative to an initial reference full charge capacity of the battery;
the adjusting module 702 is configured to adjust the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from a first reference full charge capacity to a second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity.
The battery control device provided by the embodiment of the application acquires the attenuation of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery; adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from the first reference full charge capacity to the second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity. Based on the application, the reference full charge capacity of the electronic equipment is gradually increased according to the attenuation of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery, and the capacity retention rate and the cycle life of the battery are improved.
In an optional embodiment, the obtaining module 701 is configured to:
acquiring a decrement of an actual full charge capacity of a battery relative to an initial reference full charge capacity of the battery when a battery capacity dynamic compensation function is enabled;
the adjustment module 702 is further configured to:
under the condition that the dynamic battery capacity compensation function is closed, adjusting the reference full charge capacity of the battery to a target reference full charge capacity; the target reference full charge capacity is greater than or equal to the second reference full charge capacity.
In an alternative embodiment, the adjusting module 702 is configured to:
adjusting the upper limit voltage or the lower limit voltage of the battery according to the attenuation amount, so that the difference value between the upper limit voltage and the lower limit voltage of the battery is adjusted from a first difference value to a second difference value; the second difference is greater than the first difference;
when the difference between the upper limit voltage and the lower limit voltage of the battery is the first difference, the reference full charge capacity of the battery is the first reference full charge capacity; and when the difference between the upper limit voltage and the lower limit voltage of the battery is the second difference, the reference full charge capacity of the battery is the second reference full charge capacity.
In an optional embodiment, when the adjusting module 702 adjusts the upper limit voltage of the battery according to the attenuation amount, it is configured to:
determining an upper limit voltage regulating quantity according to the attenuation quantity;
and increasing the upper limit voltage of the battery by the upper limit voltage adjustment amount, so that the difference value of the upper limit voltage and the lower limit voltage of the battery is adjusted to a second difference value from a first difference value.
In an optional embodiment, when the adjusting module 702 adjusts the lower limit voltage of the battery according to the attenuation amount, it is configured to:
determining a lower limit voltage regulating quantity according to the attenuation quantity;
and reducing the lower limit voltage of the battery by the lower limit voltage adjustment amount, so that the difference value of the upper limit voltage and the lower limit voltage of the battery is adjusted to be a second difference value from a first difference value.
In an optional embodiment, the adjusting module 702 is further configured to:
when the upper limit voltage of the battery reaches a target upper limit voltage, forbidding adjustment of the upper limit voltage of the battery; or,
and when the lower limit voltage of the battery reaches the target lower limit voltage, forbidding the adjustment of the lower limit voltage of the battery.
In an optional embodiment, further comprising:
the output module is used for acquiring the capacity retention rate of the battery and the charge-discharge cycle number of the battery; displaying the capacity retention rate and the number of charge and discharge cycles;
the capacity retention ratio is a ratio of an actual full charge capacity of the battery to the initial reference full charge capacity; the initial reference full charge capacity is less than or equal to the first reference full charge capacity.
In an optional embodiment, when the reference full charge capacity of the battery is a first reference full charge capacity, the capacity retention rate of the battery is a first capacity retention rate, and when the reference full charge capacity of the battery is a second reference full charge capacity, the capacity retention rate of the battery is a second capacity retention rate;
the first capacity retention rate is equal or approximately equal to the second capacity retention rate.
Corresponding to the method embodiment, the present application further provides an electronic device, a schematic structural diagram of which is shown in fig. 8, and the electronic device may include: at least one processor 1, at least one communication interface 2, at least one memory 3 and at least one communication bus 4.
In the embodiment of the present application, the number of the processor 1, the communication interface 2, the memory 3, and the communication bus 4 is at least one, and the processor 1, the communication interface 2, and the memory 3 complete mutual communication through the communication bus 4.
The processor 1 may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the present application, etc.
The memory 3 may comprise a high-speed RAM memory, and may further comprise a non-volatile memory (non-volatile memory) or the like, such as at least one disk memory.
Wherein the memory 3 stores a program, and the processor 1 may call the program stored in the memory 3, the program being configured to:
acquiring the attenuation quantity of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery;
adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from a first reference full charge capacity to a second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity.
Alternatively, the detailed function and the extended function of the program may be as described above.
Embodiments of the present application further provide a storage medium, where a program suitable for execution by a processor may be stored, where the program is configured to:
acquiring the attenuation quantity of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery;
adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from a first reference full charge capacity to a second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity.
Alternatively, the detailed function and the extended function of the program may be as described above.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
It should be understood that the technical problems can be solved by combining and combining the features of the embodiments from the claims.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A battery control method, the method comprising:
acquiring the attenuation quantity of the actual full charge capacity of the battery relative to the initial reference full charge capacity of the battery;
adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from a first reference full charge capacity to a second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity.
2. The method of claim 1, the obtaining a decrement in an actual full charge capacity of a battery relative to an initial baseline full charge capacity of the battery, comprising:
acquiring a decrement of an actual full charge capacity of a battery relative to an initial reference full charge capacity of the battery when a battery capacity dynamic compensation function is enabled;
the method further comprises the following steps:
under the condition that the dynamic battery capacity compensation function is closed, adjusting the reference full charge capacity of the battery to a target reference full charge capacity; the target reference full charge capacity is greater than or equal to the second reference full charge capacity.
3. The method of claim 1, the adjusting a reference full charge capacity of the battery according to the amount of attenuation, comprising:
adjusting the upper limit voltage or the lower limit voltage of the battery according to the attenuation amount, so that the difference value between the upper limit voltage and the lower limit voltage of the battery is adjusted from a first difference value to a second difference value; the second difference is greater than the first difference;
when the difference between the upper limit voltage and the lower limit voltage of the battery is the first difference, the reference full charge capacity of the battery is the first reference full charge capacity; and when the difference between the upper limit voltage and the lower limit voltage of the battery is the second difference, the reference full charge capacity of the battery is the second reference full charge capacity.
4. The method of claim 3, the adjusting an upper limit voltage of the battery according to the amount of attenuation, comprising:
determining an upper limit voltage regulating quantity according to the attenuation quantity;
and increasing the upper limit voltage of the battery by the upper limit voltage adjustment amount, so that the difference value of the upper limit voltage and the lower limit voltage of the battery is adjusted to a second difference value from a first difference value.
5. The method of claim 3, the adjusting the lower limit voltage of the battery according to the amount of attenuation comprising:
determining a lower limit voltage regulating quantity according to the attenuation quantity;
and reducing the lower limit voltage of the battery by the lower limit voltage adjustment amount, so that the difference value of the upper limit voltage and the lower limit voltage of the battery is adjusted to be a second difference value from a first difference value.
6. The method of claim 3, further comprising:
when the upper limit voltage of the battery reaches a target upper limit voltage, forbidding adjustment of the upper limit voltage of the battery; or,
and when the lower limit voltage of the battery reaches the target lower limit voltage, forbidding the adjustment of the lower limit voltage of the battery.
7. The method of claim 1, further comprising:
acquiring the capacity retention rate of the battery and the charge-discharge cycle number of the battery; the capacity retention ratio is a ratio of an actual full charge capacity of the battery to the initial reference full charge capacity; the initial reference full charge capacity is less than or equal to the first reference full charge capacity;
and displaying the capacity retention rate and the number of charge and discharge cycles.
8. The method of claim 7, wherein the capacity retention rate of the battery is a first capacity retention rate when the baseline full charge capacity of the battery is a first baseline full charge capacity, and the capacity retention rate of the battery is a second capacity retention rate when the baseline full charge capacity of the battery is a second baseline full charge capacity;
the first capacity retention rate is equal or approximately equal to the second capacity retention rate.
9. A battery control apparatus comprising:
the system comprises an acquisition module, a judgment module and a control module, wherein the acquisition module is used for acquiring the attenuation of the actual full charge capacity of a battery relative to the initial reference full charge capacity of the battery;
the adjusting module is used for adjusting the reference full charge capacity of the battery according to the attenuation amount, so that the reference full charge capacity of the battery is adjusted from a first reference full charge capacity to a second reference full charge capacity; the second reference full charge capacity is greater than the first reference full charge capacity.
10. An electronic device, comprising:
a memory for storing a program;
a processor for calling and executing the program in the memory, the steps of the battery control method according to any one of claims 1 to 8 being implemented by executing the program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440584.0A CN114142110A (en) | 2021-11-30 | 2021-11-30 | Battery control method, device, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440584.0A CN114142110A (en) | 2021-11-30 | 2021-11-30 | Battery control method, device, electronic equipment and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114142110A true CN114142110A (en) | 2022-03-04 |
Family
ID=80389625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111440584.0A Pending CN114142110A (en) | 2021-11-30 | 2021-11-30 | Battery control method, device, electronic equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114142110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117002325A (en) * | 2023-10-08 | 2023-11-07 | 浙江华宇钠电新能源科技有限公司 | Method for prolonging service life of sodium ion battery and electric vehicle applying method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016024170A (en) * | 2014-07-24 | 2016-02-08 | 日立オートモティブシステムズ株式会社 | Battery control device |
| CN107195931A (en) * | 2016-03-14 | 2017-09-22 | 大连融科储能技术发展有限公司 | Flow battery capacity attenuation determines method and its system, capacity attenuation regulation and control method and its system online |
| CN107611510A (en) * | 2017-08-31 | 2018-01-19 | 苏州新中能源科技有限公司 | Charge control method and battery charge controller |
-
2021
- 2021-11-30 CN CN202111440584.0A patent/CN114142110A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016024170A (en) * | 2014-07-24 | 2016-02-08 | 日立オートモティブシステムズ株式会社 | Battery control device |
| CN107195931A (en) * | 2016-03-14 | 2017-09-22 | 大连融科储能技术发展有限公司 | Flow battery capacity attenuation determines method and its system, capacity attenuation regulation and control method and its system online |
| CN107611510A (en) * | 2017-08-31 | 2018-01-19 | 苏州新中能源科技有限公司 | Charge control method and battery charge controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117002325A (en) * | 2023-10-08 | 2023-11-07 | 浙江华宇钠电新能源科技有限公司 | Method for prolonging service life of sodium ion battery and electric vehicle applying method |
| CN117002325B (en) * | 2023-10-08 | 2024-01-23 | 浙江华宇钠电新能源科技有限公司 | Method for prolonging service life of sodium ion battery and electric vehicle applying method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110429672B (en) | Battery charging management method, terminal device and storage medium | |
| US9634511B2 (en) | Charging control method for a rechargeable battery and portable computer | |
| CN104716709B (en) | Electronic equipment and its charging method and battery | |
| CN106207291A (en) | A kind of charging method, device and battery system | |
| CN110247453B (en) | Control method, device, equipment and medium | |
| US20230344259A1 (en) | Battery Charging Method and Electronic Device | |
| CN111404228B (en) | Terminal battery charging method and device, terminal battery charging equipment and storage medium | |
| CN110729790A (en) | Charging method and device, computer equipment and storage medium | |
| CN110783970B (en) | Charging method, device, charging terminal and computer readable storage medium | |
| CN112858938B (en) | Electric quantity calculation method and device, storage medium and electronic equipment | |
| CN106655343B (en) | A kind of charging method and device of mobile terminal | |
| CN110426642B (en) | Method, device and equipment for acquiring electric quantity of electronic equipment in aging state and storage medium | |
| CN107357392A (en) | Mobile terminal temperature rise control method, mobile terminal and readable storage medium storing program for executing | |
| WO2018072443A1 (en) | Charging method, apparatus, and data storage medium | |
| CN110911770A (en) | Charging method and device to be charged | |
| TW201227209A (en) | Method for clock frequency adjustment for a processing unit of a computer system and ralated device | |
| CN109037810A (en) | A kind of charging method of battery, device and battery system | |
| CN110277817A (en) | Electricity acquisition methods, device, equipment and the storage medium of a kind of electronic equipment | |
| CN109936197A (en) | A kind of charging method, mobile power source and computer storage medium | |
| CN111564877A (en) | Method and device for charging management and control | |
| CN114142110A (en) | Battery control method, device, electronic equipment and storage medium | |
| CN115473252A (en) | Power dispatching method of energy storage system and energy storage system | |
| CN105573458B (en) | Information processing method and electronic equipment | |
| CN115021352A (en) | Control method, control device and control system for electric energy supplement amount of charging pile | |
| US20080211460A1 (en) | Charging method and system for adjusting charging current |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |