CN112926753A - Recovery method and device of power battery - Google Patents

Recovery method and device of power battery Download PDF

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CN112926753A
CN112926753A CN202110181685.4A CN202110181685A CN112926753A CN 112926753 A CN112926753 A CN 112926753A CN 202110181685 A CN202110181685 A CN 202110181685A CN 112926753 A CN112926753 A CN 112926753A
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陈新建
李海波
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Baic Penglong Cangzhou New Energy Vehicle Service Co ltd
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Abstract

The application discloses a recovery method and a recovery device for a power battery, and relates to the technical field of power batteries. The method of the present application comprises: acquiring battery related data corresponding to a target power battery, wherein the target power battery comprises a plurality of battery monomers, and the battery related data comprises a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period; and screening out a plurality of battery monomers to be recovered from the plurality of battery monomers according to the battery related data. The method and the device are suitable for the process of screening out the battery monomers meeting the use requirements of low-end application scenes from the eliminated power batteries.

Description

Recovery method and device of power battery
Technical Field
The application relates to the technical field of power batteries, in particular to a recovery method and a recovery device of a power battery.
Background
With the continuous development of society, the living standard of people is continuously improved, the demand of people for automobiles is increased, the problem of environmental pollution caused by energy shortage and traditional automobiles is serious day by day, electric automobiles using electric energy as power are produced, and in the running process of the electric automobiles, power batteries in the electric automobiles provide power support for the electric automobiles. The battery capacity of the power battery is gradually reduced along with the use of the electric automobile, and the power battery is eliminated when the battery capacity of the power battery is reduced to 80% of a factory calibration value according to national regulations. However, since a part of the single batteries in the eliminated power battery can still meet the use requirements of low-end application scenes such as energy storage, electric bicycles, street lamps and the like, the eliminated power battery needs to be recycled after the power battery is eliminated.
At present, in the process of recycling eliminated power batteries, the power batteries need to be subjected to complex charge and discharge tests to screen the single batteries in the power batteries, so that the single batteries meeting the use requirements are screened from the power batteries. However, the whole process of performing the charge and discharge test on the power battery is complex to operate, and overshoot or overdischarge is easily generated, so that the efficiency and the safety of screening out the battery cells meeting the use requirements of the low-end application scene from the eliminated power batteries are low.
Disclosure of Invention
The embodiment of the application provides a recovery method and a recovery device for power batteries, and mainly aims to safely and efficiently screen out battery monomers meeting the use requirements of low-end application scenes from eliminated power batteries.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
in a first aspect, the present application provides a method for recycling a power battery, the method comprising:
acquiring battery related data corresponding to a target power battery, wherein the target power battery comprises a plurality of battery monomers, and the battery related data comprises a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period;
and screening out a plurality of battery monomers to be recovered from the plurality of battery monomers according to the battery related data.
Optionally, the screening out a plurality of battery cells to be recovered from the plurality of battery cells according to the battery related data includes:
selecting a plurality of target dates from the target time period;
extracting a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in each target date from the battery related data;
determining a plurality of target battery monomers corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer in each target date;
counting the number of times that each battery cell is determined as a target battery cell according to a plurality of target battery cells corresponding to each target date;
and screening a plurality of to-be-recovered battery monomers from the plurality of battery monomers according to the number of times that each battery monomer is determined as a target battery monomer.
Optionally, the determining, according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in each target date, a plurality of target battery cells corresponding to each target date includes:
determining a target temperature range and a target voltage range corresponding to the target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in the target date;
and determining the single battery with the plurality of battery temperature data within the target temperature range and the plurality of battery voltage data within the target voltage range as the target single battery corresponding to the target date.
Optionally, the screening out a plurality of battery cells to be recovered from the plurality of battery cells according to the number of times that each battery cell is determined as the target battery cell includes:
calculating the selection probability corresponding to each battery monomer according to the number of the target dates and the number of times that each battery monomer is determined as the target battery monomer;
and determining the battery monomer with the selected probability greater than a preset probability threshold value as the battery monomer to be recovered.
Optionally, after the screening out a plurality of battery cells to be recovered from the plurality of battery cells according to the battery related data, the method further includes:
acquiring relevant information corresponding to each battery cell to be recovered, wherein the relevant information comprises: the serial number information and/or the position information corresponding to the battery monomer to be recovered;
and outputting and displaying the relevant information corresponding to each battery monomer to be recovered.
In a second aspect, the present application also provides a recycling method and apparatus for power batteries, the apparatus including:
the device comprises a first acquisition unit, a second acquisition unit and a third acquisition unit, wherein the first acquisition unit is used for acquiring battery related data corresponding to a target power battery, the target power battery comprises a plurality of battery monomers, and the battery related data comprises a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period;
and the screening unit is used for screening a plurality of battery monomers to be recycled from the plurality of battery monomers according to the battery related data.
Optionally, the screening unit includes:
the selecting module is used for selecting a plurality of target dates from the target time period;
the extraction module is used for extracting a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in each target date from the battery related data;
the determining module is used for determining a plurality of target battery monomers corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer in each target date;
the counting module is used for counting the times that each battery cell is determined as the target battery cell according to a plurality of target battery cells corresponding to each target date;
and the screening module is used for screening a plurality of to-be-recovered battery monomers from the plurality of battery monomers according to the frequency of determining each battery monomer as the target battery monomer.
Optionally, the determining module includes:
the first determining submodule is used for determining a target temperature range and a target voltage range corresponding to the target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in the target date;
and the second determining submodule is used for determining the battery monomer with the plurality of battery temperature data within the target temperature range and the plurality of battery voltage data within the target voltage range as the target battery monomer corresponding to the target date.
Optionally, the screening module includes:
the calculation submodule is used for calculating the corresponding selection probability of each battery cell according to the number of the target dates and the number of times that each battery cell is determined as the target battery cell;
and the third determining submodule is used for determining the battery monomer with the selected probability greater than the preset probability threshold value as the battery monomer to be recycled.
Optionally, the apparatus further comprises:
the second obtaining unit is configured to obtain relevant information corresponding to each to-be-recovered battery cell after the screening unit screens out a plurality of to-be-recovered battery cells from the plurality of battery cells according to the battery-related data, where the relevant information includes: the serial number information and/or the position information corresponding to the battery monomer to be recovered;
and the output unit is used for outputting and displaying the relevant information corresponding to each battery cell to be recovered.
In a third aspect, an embodiment of the present application provides a storage medium, where the storage medium includes a stored program, and when the program runs, a device in which the storage medium is located is controlled to execute the power battery recycling method according to the first aspect.
In a fourth aspect, embodiments of the present application provide a recycling apparatus for power batteries, the apparatus including a storage medium; and one or more processors, the storage medium coupled with the processors, the processors configured to execute program instructions stored in the storage medium; the program instructions are executed to execute the recovery method of the power battery of the first aspect.
By means of the technical scheme, the technical scheme provided by the application at least has the following advantages:
the application provides a recovery method and a recovery device of a power battery, compared with the prior art that the eliminated power battery is subjected to complex charge and discharge tests to screen out battery monomers meeting the use requirements of a low-end application scene, the recovery method and the recovery device can obtain battery related data which are acquired by a battery management system and comprise a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period in the process of driving the target electric vehicle to run by using a target power battery to provide power support for the target electric vehicle through a recovery terminal device, and the recovery terminal device can recover the battery related data according to the target power battery, namely the plurality of battery temperature data and the plurality of battery voltage data corresponding to each battery monomer every day in the target time period, and screening out battery cells meeting the use requirements of the low-end application scene from the plurality of battery cells contained in the target power battery. The recovery terminal device can screen the battery cells meeting the use requirement of the low-end application scene from the plurality of battery cells included in the target power battery without performing charge and discharge tests on the target power battery, so that the battery cells meeting the use requirement of the low-end application scene can be screened from the target power battery safely and efficiently.
The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
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The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 shows a flow chart of a recycling method of a power battery provided by an embodiment of the application;
FIG. 2 is a flow chart of another power battery recycling method provided by the embodiment of the application;
FIG. 3 is a block diagram illustrating the components of a recycling device for power batteries according to an embodiment of the present disclosure;
fig. 4 shows a block diagram of a recycling device for another power battery provided in the embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
The embodiment of the application provides a recovery method of a power battery, as shown in fig. 1, the method includes:
101. and acquiring battery related data corresponding to the target power battery.
The target power battery is a power battery eliminated by the target electric vehicle, namely a power battery needing to be recycled; the target power battery comprises a plurality of battery monomers, and the battery related data corresponding to the target power battery comprises a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period; the target time period specifically comprises the following steps: the target power battery is eliminated N days before the elimination day, N is a positive integer, for example, when N is 1096, the elimination day corresponding to the target power battery is 2021 year, 2 month and 7 days, the target time period corresponding to the target power battery is: from 7/2/2018 to 7/2/2021, but not limited thereto.
In the embodiment of the present invention, the execution subject in each step is a recovery terminal device, and the recovery terminal device may be, but is not limited to: computers, servers, etc.
In the embodiment of the application, before the target power battery is not eliminated, the target electric automobile uses the target power battery to provide power support for the target electric automobile; the method comprises the following steps that in the process of using a target power BATTERY to provide power support for a target electric vehicle and driving the target electric vehicle to run, a BATTERY management system (BATTERY MANAGEMENT SYSTEM, BMS) in the target electric vehicle acquires BATTERY related data corresponding to the target power BATTERY, namely in the process of using the target power BATTERY to provide power support for the target electric vehicle and driving the target electric vehicle to run, BATTERY temperature data and BATTERY voltage data corresponding to each BATTERY cell in the target power BATTERY are acquired; after the target power battery is eliminated, the recovery worker can acquire battery related data corresponding to the target power battery from a battery management system of the target electric vehicle, and then introduce the acquired battery related data into the recovery terminal device, or can control the battery management system of the target electric vehicle to send the battery related data corresponding to the target power battery to the recovery terminal device; at the moment, the recovery terminal equipment can obtain the battery-related data electricity corresponding to the target power battery.
102. And screening out a plurality of battery monomers to be recovered from the plurality of battery monomers according to the relevant data of the battery.
The battery monomer to be recovered is the battery monomer which meets the use requirement of a low-end application scene in the target power battery.
In the embodiment of the application, after obtaining the battery related data corresponding to the target power battery, the recycling terminal device may screen out a plurality of battery cells to be recycled from the plurality of battery cells included in the target power battery according to the battery related data, that is, in the process of driving the target electric vehicle to run, a battery management system in the target electric vehicle acquires a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell every day in a target time period, and screens out the battery cells meeting the use requirements of the low-end application scenario from the plurality of battery cells.
Compared with the prior art that the eliminated power battery is subjected to complex charge and discharge tests to screen out the battery monomers meeting the use requirements of the low-end application scene, the recovery method of the power battery can obtain the battery related data which are acquired by the battery management system and comprise a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer on each day in the target time period after the battery related data which comprise a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer on each day in the target time period are acquired by the recovery terminal device and used for providing power support for the target electric vehicle and driving the target electric vehicle to run, and the recovery terminal device can recover the battery related data according to the target power battery, namely according to the plurality of battery temperature data and the plurality of battery voltage data corresponding to each battery monomer on each day in the target time period, and screening out battery cells meeting the use requirements of the low-end application scene from the plurality of battery cells contained in the target power battery. The recovery terminal device can screen the battery cells meeting the use requirement of the low-end application scene from the plurality of battery cells included in the target power battery without performing charge and discharge tests on the target power battery, so that the battery cells meeting the use requirement of the low-end application scene can be screened from the target power battery safely and efficiently.
For the purpose of more detailed description, the present application provides another recycling method of a power battery, specifically as shown in fig. 2, the method includes:
201. and acquiring battery related data corresponding to the target power battery.
In step 201, the description of the corresponding portion in fig. 1 may be referred to for obtaining the battery related data corresponding to the target power battery, and details of the embodiment of the present application will not be repeated here.
202. And screening out a plurality of battery monomers to be recovered from the plurality of battery monomers according to the relevant data of the battery.
In the embodiment of the application, after obtaining the battery related data corresponding to the target power battery, the recycling terminal device may screen out a plurality of battery cells to be recycled from the plurality of battery cells included in the target power battery according to the battery related data, that is, in the process of driving the target electric vehicle to run, a battery management system in the target electric vehicle acquires a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell every day in a target time period, and screens out the battery cells meeting the use requirements of the low-end application scenario from the plurality of battery cells. The following will describe in detail how the recovery terminal device screens out a plurality of battery cells to be recovered from the plurality of battery cells according to the battery related data.
(1) A plurality of target dates are selected from within the target time period.
In the embodiment of the application, after obtaining battery related data corresponding to a target power battery, the recycling terminal device first needs to select a plurality of target dates from a target time period.
Specifically, in this step, the recycling terminal device may select a fixed day of each month in the target time period as the target date, thereby obtaining a plurality of target dates, for example, select an eleventh day of each month in the target time period as the target date, select a twenty-first day of each month in the target time period as the target date, and so on; it is also possible to randomly select one day as the target date in each month within the target time period, thereby obtaining a plurality of target dates, i.e., randomly select one day as the target date in the first month within the target time period, and randomly select one day as the target date … … in the second month within the target time period, but not limited thereto.
(2) And extracting a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in each target date from the battery related data.
In this embodiment, since the battery related data corresponding to the target power battery specifically includes a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell on each day in the target time period, after the recovery terminal device selects a plurality of target dates from the target time period, the plurality of battery temperature data and the plurality of battery voltage data corresponding to each battery cell in each target date may be extracted from the battery related data corresponding to the target power battery.
(3) And determining a plurality of target battery monomers corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer in each target date.
Wherein, the target battery monomer corresponding to the target date is: and within the target date, the battery cell meets the use requirement of the low-end application scene.
In the embodiment of the application, after extracting the plurality of battery temperature data and the plurality of battery voltage data corresponding to each battery cell on each target date from the battery related data corresponding to the target power battery, the recovery terminal device may determine the plurality of target battery cells corresponding to each target date according to the plurality of battery temperature data and the plurality of battery voltage data corresponding to each battery cell on each target date.
Specifically, in this step, for any one target date, the target battery cells corresponding to the target date may be determined according to the battery temperature data and the battery voltage data corresponding to each battery cell in the target date in the following manner: firstly, determining a target temperature range and a target voltage range corresponding to the target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in the target date; then, determining the battery cell with the plurality of battery temperature data within the target temperature range and the plurality of battery voltage data within the target voltage range as the target battery cell corresponding to the target date, namely determining the battery cell as the target battery cell corresponding to the target date when the plurality of battery temperature data corresponding to a certain battery cell are within the target temperature range and the plurality of battery voltage data corresponding to the battery cell are within the target voltage range. The specific process of determining the target temperature range and the target voltage range corresponding to the target date according to the plurality of battery temperature data and the plurality of battery voltage data corresponding to each battery cell in the target date may be, but is not limited to: firstly, calculating an average value of a plurality of battery temperature data (namely a battery temperature average value) corresponding to a plurality of battery cells in the target date, and calculating an average value of a plurality of battery voltage data (namely a battery voltage average value) of a plurality of battery cells drunk by the plurality of battery cells in the target date; then, X ° c above and below the average value of the cell temperatures is determined as a target temperature range corresponding to the target date, and YmV above and below the average value of the cell voltages is determined as a target voltage range corresponding to the target date, where X and Y are positive integers, for example, when X is 2, Y is 50, the average value of the cell temperatures corresponding to the target date is 36.2 ℃, and the average value of the cell voltages corresponding to the target date is 3250mV, the target temperature range corresponding to the target date is [34.2 ℃, 38.2 ℃ ], and the target voltage range corresponding to the target date is [3200mV, 3300mV ], but is not limited thereto.
(4) And counting the times of determining each single battery as the target single battery according to a plurality of target single batteries corresponding to each target date.
In the embodiment of the application, after determining a plurality of target battery cells corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell within each target date, the recycling terminal device may count the number of times that each battery cell is determined as the target battery cell according to a plurality of target battery cells corresponding to each target date, for example, if the battery cell a is determined as the target battery cell within the target date a, the target date b, the target date c, the target date d, the target date e, and the target date f, the number of times that the battery cell a is determined as the target battery cell is 6 times.
(5) And screening a plurality of to-be-recovered battery monomers from the plurality of battery monomers according to the number of times that each battery monomer is determined as the target battery monomer.
In the embodiment of the application, the recovery terminal device counts the number of times that each battery cell is determined as the target battery cell according to a plurality of target battery cells corresponding to each target date, and then screens out a plurality of to-be-recovered battery cells from the plurality of battery cells according to the number of times that each battery cell is determined as the target battery cell.
Specifically, in this step, the recovery terminal device may screen out a plurality of battery cells to be recovered from the plurality of battery cells according to the number of times that each battery cell is determined as the target battery cell, in the following manner: firstly, calculating a selection probability corresponding to each battery cell according to the number of a plurality of target dates and the number of times that each battery cell is determined as a target battery cell, namely, determining the ratio of the number of times that the battery cell is determined as the target battery cell to the number of the plurality of target dates as the selection probability corresponding to the battery cell, wherein for example, the number of the plurality of target dates is 36, the number of times that the battery cell a is determined as the target battery cell is 6, and the selection probability corresponding to the battery cell a is 6/36-0.167; then, determining the battery cell with the selected probability greater than a preset probability threshold as a battery cell to be recovered, wherein the preset probability threshold may be, but is not limited to: 80%, 85%, 90%, etc.
203. And acquiring relevant information corresponding to each battery monomer to be recovered, and outputting and displaying the relevant information corresponding to each battery monomer to be recovered.
Wherein, the relevant information corresponding to the battery monomer to be recovered is: the serial number information and/or the position information corresponding to the battery monomer to be recovered; the number information and the position information corresponding to the battery monomer to be recovered are used for indicating the position of the battery monomer to be recovered in the target power battery.
In the embodiment of the application, when acquiring the battery related data corresponding to the target power battery, the recycling terminal device also acquires related information (i.e. number information and/or position information) corresponding to each battery cell in the target power battery; after the recovery terminal device screens out a plurality of to-be-recovered battery monomers from the plurality of battery monomers according to the battery related data, the related information (namely, number information and/or position information) corresponding to each to-be-recovered battery monomer can be obtained from the related information corresponding to the plurality of battery monomers, and the related information corresponding to each to-be-recovered battery monomer is output and displayed, so that a recovery worker can disassemble a plurality of to-be-recovered battery monomers from the target power battery after determining the position of each to-be-recovered battery monomer in the target power battery according to the related information corresponding to each to-be-recovered battery monomer, and the recovery and reutilization of the target power battery can be completed.
In order to achieve the above object, according to another aspect of the present application, an embodiment of the present application further provides a storage medium, where the storage medium includes a stored program, and when the program runs, a device in which the storage medium is located is controlled to execute the above power battery recycling method.
In order to achieve the above object, according to another aspect of the present application, an embodiment of the present application further provides a recycling device for a power battery, the recycling device including a storage medium; and one or more processors, the storage medium coupled with the processors, the processors configured to execute program instructions stored in the storage medium; and when the program instructions are operated, the recovery method of the power battery is executed.
Further, as an implementation of the method shown in fig. 1 and fig. 2, another embodiment of the present application further provides a recycling device for power batteries. The embodiment of the apparatus corresponds to the embodiment of the method, and for convenience of reading, details in the embodiment of the apparatus are not repeated one by one, but it should be clear that the apparatus in the embodiment can correspondingly implement all the contents in the embodiment of the method. The device is applied to safely and efficiently screening out the battery monomer meeting the use requirement of a low-end application scene from the eliminated power batteries, and particularly as shown in figure 3, the device comprises:
the first obtaining unit 31 is configured to obtain battery related data corresponding to a target power battery, where the target power battery includes a plurality of battery cells, and the battery related data includes a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell on each day in a target time period;
and the screening unit 32 is configured to screen out a plurality of to-be-recovered battery cells from the plurality of battery cells according to the battery related data.
Further, as shown in fig. 4, the screening unit 32 includes:
a selecting module 321, configured to select multiple target dates from the target time period;
an extracting module 322, configured to extract, from the battery related data, a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell on each target date;
the determining module 323 is configured to determine a plurality of target battery cells corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell within each target date;
a counting module 324, configured to count, according to a plurality of target battery cells corresponding to each target date, the number of times that each battery cell is determined as a target battery cell;
the screening module 325 is configured to screen a plurality of battery cells to be recovered from the plurality of battery cells according to the number of times that each battery cell is determined as the target battery cell.
Further, as shown in fig. 4, the determining module 323 includes:
the first determining submodule 3231 is configured to determine, according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in the target date, a target temperature range and a target voltage range corresponding to the target date;
the second determining submodule 3232 is configured to determine, as a target battery cell corresponding to the target date, a battery cell in which the plurality of battery temperature data are all within the target temperature range and the plurality of battery voltage data are all within the target voltage range.
Further, as shown in fig. 4, the screening module 325 includes:
the calculating submodule 3251 is configured to calculate a selection probability corresponding to each battery cell according to the number of the target dates and the number of times that each battery cell is determined as a target battery cell;
the third determining submodule 3252 is configured to determine the battery cell with the selected probability greater than the preset probability threshold as a battery cell to be recovered.
Further, as shown in fig. 4, the apparatus further includes:
the second obtaining unit 33 is configured to obtain, after the screening unit 32 screens out a plurality of to-be-recovered battery cells from the plurality of battery cells according to the battery related data, related information corresponding to each to-be-recovered battery cell, where the related information includes: the serial number information and/or the position information corresponding to the battery monomer to be recovered;
and the output unit 34 is configured to output and display relevant information corresponding to each battery cell to be recovered.
The embodiment of the application provides a recovery method and a recovery device of a power battery, compared with the prior art that complicated charging and discharging tests are carried out on the eliminated power battery to screen out battery monomers meeting the use requirements of a low-end application scene from the eliminated power battery, the recovery method and the recovery device can obtain battery related data which are acquired by a battery management system and comprise a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer on each day in a target time period after the battery related data are acquired by recovery terminal equipment and comprise a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer on each day in the target time period in the process of driving the target electric vehicle to run, the recovery terminal equipment is used for recovering the battery related data according to the target power battery, namely, the plurality of battery temperature data and the plurality of battery voltage data corresponding to each battery monomer on each day in the target time period, and screening out battery cells meeting the use requirements of the low-end application scene from the plurality of battery cells contained in the target power battery. The recovery terminal device can screen the battery cells meeting the use requirement of the low-end application scene from the plurality of battery cells included in the target power battery without performing charge and discharge tests on the target power battery, so that the battery cells meeting the use requirement of the low-end application scene can be screened from the target power battery safely and efficiently.
The recovery device of the power battery comprises a processor and a memory, wherein the first acquisition unit, the screening unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. One or more than one kernel can be set, and the kernel parameters are adjusted to safely and efficiently screen out the battery monomers meeting the use requirements of low-end application scenes from the eliminated power batteries.
The embodiment of the application provides a storage medium, which comprises a stored program, wherein when the program runs, a device where the storage medium is located is controlled to execute the recovery method of the power battery.
The storage medium may include volatile memory in a computer readable medium, Random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.
The embodiment of the application also provides a recovery device of the power battery, and the device comprises a storage medium; and one or more processors, the storage medium coupled with the processors, the processors configured to execute program instructions stored in the storage medium; and when the program instructions are operated, the recovery method of the power battery is executed.
The embodiment of the application provides equipment, the equipment comprises a processor, a memory and a program which is stored on the memory and can run on the processor, and the following steps are realized when the processor executes the program:
acquiring battery related data corresponding to a target power battery, wherein the target power battery comprises a plurality of battery monomers, and the battery related data comprises a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period;
and screening out a plurality of battery monomers to be recovered from the plurality of battery monomers according to the battery related data.
Further, the screening out a plurality of battery cells to be recycled from the plurality of battery cells according to the battery related data includes:
selecting a plurality of target dates from the target time period;
extracting a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in each target date from the battery related data;
determining a plurality of target battery monomers corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer in each target date;
counting the number of times that each battery cell is determined as a target battery cell according to a plurality of target battery cells corresponding to each target date;
and screening a plurality of to-be-recovered battery monomers from the plurality of battery monomers according to the number of times that each battery monomer is determined as a target battery monomer.
Further, the determining a plurality of target battery cells corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell within each target date includes:
determining a target temperature range and a target voltage range corresponding to the target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in the target date;
and determining the single battery with the plurality of battery temperature data within the target temperature range and the plurality of battery voltage data within the target voltage range as the target single battery corresponding to the target date.
Further, the screening out a plurality of battery cells to be recycled from the plurality of battery cells according to the number of times that each battery cell is determined as the target battery cell includes:
calculating the selection probability corresponding to each battery monomer according to the number of the target dates and the number of times that each battery monomer is determined as the target battery monomer;
and determining the battery monomer with the selected probability greater than a preset probability threshold value as the battery monomer to be recovered.
Further, after the screening out a plurality of battery cells to be recycled from the plurality of battery cells according to the battery related data, the method further includes:
acquiring relevant information corresponding to each battery cell to be recovered, wherein the relevant information comprises: the serial number information and/or the position information corresponding to the battery monomer to be recovered;
and outputting and displaying the relevant information corresponding to each battery monomer to be recovered.
The present application further provides a computer program product adapted to perform program code for initializing the following method steps when executed on a data processing device: acquiring battery related data corresponding to a target power battery, wherein the target power battery comprises a plurality of battery monomers, and the battery related data comprises a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period; and screening out a plurality of battery monomers to be recovered from the plurality of battery monomers according to the battery related data.
As will be appreciated by one skilled in the art, 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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
As will be appreciated by one skilled in the art, 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 above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A method for recycling a power battery is characterized by comprising the following steps:
acquiring battery related data corresponding to a target power battery, wherein the target power battery comprises a plurality of battery monomers, and the battery related data comprises a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period;
and screening out a plurality of battery monomers to be recovered from the plurality of battery monomers according to the battery related data.
2. The method of claim 1, wherein the screening out a plurality of battery cells to be recycled from the plurality of battery cells according to the battery-related data comprises:
selecting a plurality of target dates from the target time period;
extracting a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in each target date from the battery related data;
determining a plurality of target battery monomers corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer in each target date;
counting the number of times that each battery cell is determined as a target battery cell according to a plurality of target battery cells corresponding to each target date;
and screening a plurality of to-be-recovered battery monomers from the plurality of battery monomers according to the number of times that each battery monomer is determined as a target battery monomer.
3. The method of claim 2, wherein determining a plurality of target cells for each of the target dates according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each of the cells for each of the target dates comprises:
determining a target temperature range and a target voltage range corresponding to the target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in the target date;
and determining the single battery with the plurality of battery temperature data within the target temperature range and the plurality of battery voltage data within the target voltage range as the target single battery corresponding to the target date.
4. The method according to claim 2, wherein the screening out a plurality of battery cells to be recycled from the plurality of battery cells according to the number of times that each battery cell is determined as the target battery cell comprises:
calculating the selection probability corresponding to each battery monomer according to the number of the target dates and the number of times that each battery monomer is determined as the target battery monomer;
and determining the battery monomer with the selected probability greater than a preset probability threshold value as the battery monomer to be recovered.
5. The method according to any one of claims 1-4, wherein after the screening out a plurality of battery cells to be recycled from the plurality of battery cells according to the battery-related data, the method further comprises:
acquiring relevant information corresponding to each battery cell to be recovered, wherein the relevant information comprises: the serial number information and/or the position information corresponding to the battery monomer to be recovered;
and outputting and displaying the relevant information corresponding to each battery monomer to be recovered.
6. A recovery device of a power battery is characterized by comprising:
the device comprises a first acquisition unit, a second acquisition unit and a third acquisition unit, wherein the first acquisition unit is used for acquiring battery related data corresponding to a target power battery, the target power battery comprises a plurality of battery monomers, and the battery related data comprises a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer every day in a target time period;
and the screening unit is used for screening a plurality of battery monomers to be recycled from the plurality of battery monomers according to the battery related data.
7. The apparatus of claim 6, wherein the screening unit comprises:
the selecting module is used for selecting a plurality of target dates from the target time period;
the extraction module is used for extracting a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in each target date from the battery related data;
the determining module is used for determining a plurality of target battery monomers corresponding to each target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery monomer in each target date;
the counting module is used for counting the times that each battery cell is determined as the target battery cell according to a plurality of target battery cells corresponding to each target date;
and the screening module is used for screening a plurality of to-be-recovered battery monomers from the plurality of battery monomers according to the frequency of determining each battery monomer as the target battery monomer.
8. The apparatus of claim 7, wherein the determining module comprises:
the first determining submodule is used for determining a target temperature range and a target voltage range corresponding to the target date according to a plurality of battery temperature data and a plurality of battery voltage data corresponding to each battery cell in the target date;
and the second determining submodule is used for determining the battery monomer with the plurality of battery temperature data within the target temperature range and the plurality of battery voltage data within the target voltage range as the target battery monomer corresponding to the target date.
9. A storage medium, characterized in that the storage medium comprises a stored program, wherein when the program runs, the storage medium is controlled to execute the recovery method of the power battery according to any one of claims 1 to 5.
10. A power cell recycling apparatus, comprising a storage medium; and one or more processors, the storage medium coupled with the processors, the processors configured to execute program instructions stored in the storage medium; the program instructions when executed perform the method of recycling a power cell of any of claims 1 to 5.
CN202110181685.4A 2021-02-10 2021-02-10 Recovery method and device of power battery Pending CN112926753A (en)

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CN110967632A (en) * 2019-12-17 2020-04-07 腾讯科技(深圳)有限公司 Method, device, equipment and storage medium for determining fault battery
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Application publication date: 20210608