CN114295990A - Method, device and equipment for determining abnormal single battery pack and storage medium - Google Patents
Method, device and equipment for determining abnormal single battery pack and storage medium Download PDFInfo
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Abstract
The embodiment of the application provides a method, a device, equipment and a storage medium for determining abnormal single cells of a battery pack, wherein the method for determining the abnormal single cells of the battery pack comprises the following steps: acquiring a first voltage value of each monomer of the battery pack in a first state, wherein the first state is an idle state of the battery pack; determining the distribution quantity of each monomer at each first voltage value according to the first voltage value; determining the monomer corresponding to the first voltage value with the distribution quantity according with the preset proportion of the total monomer quantity as an abnormal monomer; the embodiment of the application can solve the problem that the conventional detection method for the abnormal single battery pack cannot detect the single battery cell put into use.
Description
Technical Field
The application belongs to the field of battery detection, and particularly relates to a method, a device, equipment and a storage medium for determining abnormal cells of a battery pack.
Background
In order to meet the requirements of high voltage, high capacity and the like, battery products such as power batteries, energy storage battery packs and the like are generally realized by connecting a plurality of battery cell monomers in a series-parallel connection mode. In the use process of the battery pack, the performance of the whole battery pack is deteriorated due to the abnormity of part of the battery cells, and then the safety problem is caused.
The existing detection method for abnormal single batteries of battery packs generally comprises the steps of removing abnormal battery cores through capacity, voltage difference, internal resistance and self-discharge rate before battery pack matching. However, the method is only suitable for the cell monomers which are not put into use, and after the cell monomers are put into use, the aging degrees of the cell monomers at different service life stages are different, so that abnormal cell monomers can appear in the use process, and the existing detection method for the abnormal cell monomers of the battery pack cannot detect the cell monomers which are put into use.
Disclosure of Invention
The embodiment of the application provides a method, a device, equipment and a storage medium for determining abnormal cells of a battery pack, and can solve the problem that the conventional method for detecting the abnormal cells of the battery pack cannot detect the cells put into use.
In a first aspect, an embodiment of the present application provides a method for determining an abnormal cell of a battery pack, including:
acquiring a first voltage value of each monomer of the battery pack in a first state, wherein the first state is an idle state of the battery pack;
determining the distribution quantity of each monomer at each first voltage value according to the first voltage value;
and determining the monomer corresponding to the first voltage value with the distribution quantity according with the preset proportion of the total monomer quantity as an abnormal monomer.
In one embodiment, the method further comprises:
acquiring a first charge state value of a reference normal monomer, a second charge state value of an abnormal monomer and the net capacity of a battery pack; the reference normal monomer is any monomer except the abnormal monomer;
calculating a first actual capacity of the reference normal monomer according to the first state of charge value and the net capacity, and calculating a second actual capacity of the abnormal monomer according to the second state of charge value and the net capacity;
and under the condition that the difference value between the first actual capacity and the second actual capacity does not accord with the preset value interval, the abnormal monomer is determined as the normal monomer again.
In one embodiment, the first state of charge value includes a state of charge value of a normal cell referred to by the battery pack in a first state and a state of charge value of a normal cell referred to by the battery pack in a second state, and the second state is a state of the battery pack after discharging or charging for a preset time in the first state;
the first actual capacity is calculated by the following equation:
Q1＝Q/|SOC2-SOC1|
wherein Q is1Is the first actual capacity, Q is the net capacity, SOC2Referencing the state of charge, SOC, of the normal cell for the battery pack in the second state1And referencing the state of charge value of the normal cell for the battery pack in the first state.
In one embodiment, determining the number of the cells distributed at each first voltage value according to the first voltage value includes:
drawing a normal distribution curve chart representing the distribution quantity of each monomer at each first voltage value according to the first voltage value;
and determining the distribution quantity of each monomer at each first voltage value according to the normal distribution curve graph.
In a second aspect, an embodiment of the present application provides an apparatus for determining an abnormal cell of a battery pack, including:
the acquisition module is used for acquiring a first voltage value of each monomer of the battery pack in a first state, wherein the first state is an idle state of the battery pack;
the determining module is used for determining the distribution quantity of each monomer at each first voltage value according to the first voltage value;
the determining module is further used for determining the monomer corresponding to the first voltage value with the distribution quantity according with the preset proportion of the total monomer quantity as the abnormal monomer.
In one embodiment, the apparatus further comprises a computing module;
the acquisition module is also used for acquiring a first charge state value of a reference normal monomer, a second charge state value of an abnormal monomer and the net capacity of the battery pack; the reference normal monomer is any monomer except the abnormal monomer;
the calculation module is used for calculating a first actual capacity of the reference normal monomer according to the first charge state value and the net capacity, and calculating a second actual capacity of the abnormal monomer according to the second charge state value and the net capacity;
the determining module is further used for re-determining the abnormal monomer as the normal monomer under the condition that the difference value between the first actual capacity and the second actual capacity does not accord with the preset value interval.
In one embodiment, the first state of charge value includes a state of charge value of a normal cell referred to by the battery pack in a first state and a state of charge value of a normal cell referred to by the battery pack in a second state, and the second state is a state of the battery pack after discharging or charging for a preset time in the first state;
the calculation module is specifically configured to calculate the first actual capacity by the following equation:
Q1＝Q/|SOC2-SOC1|
wherein Q is1Is the first actual capacity, Q is the net capacity, SOC2Referencing the state of charge, SOC, of the normal cell for the battery pack in the second state1And referencing the state of charge value of the normal cell for the battery pack in the first state.
In an embodiment, the determining module is specifically configured to:
drawing a normal distribution curve chart representing the distribution quantity of each monomer at each first voltage value according to the first voltage value;
and determining the distribution quantity of each monomer at each first voltage value according to the normal distribution curve graph.
In a third aspect, an embodiment of the present application provides an electronic device, including: the battery pack abnormal cell determination method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the computer program is executed by the processor, the determination method for the battery pack abnormal cell is realized.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where an implementation program for information transmission is stored on the computer-readable storage medium, and when the program is executed by a processor, the method for determining an abnormal cell of a battery pack is implemented.
In a fifth aspect, an embodiment of the present application provides a computer program product, where instructions in the computer program product, when executed by a processor of an electronic device, cause the electronic device to execute the method for determining an abnormal cell of a battery pack.
According to the method, the device, the equipment and the storage medium for determining the abnormal single cells of the battery pack, the abnormal single cells are determined by analyzing the distribution condition of the first voltage values of all the single cells of the battery pack in an idle state, and after the abnormal single cells are determined, the determination result is rechecked by comparing the actual capacity with the normal single cells, so that the abnormal single cell electric core is determined in two stages.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for determining an abnormal cell of a battery pack according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a battery voltage fluctuation provided by an embodiment of the present application;
FIG. 3 is a normal distribution graph according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an apparatus for determining an abnormal cell of a battery pack according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The conventional method for detecting the abnormal single battery pack cannot detect the single battery cell which is put into use.
In order to solve the problem of the prior art, embodiments of the present application provide a method, an apparatus, a device, and a storage medium for determining an abnormal cell of a battery pack. The abnormal single body is determined by analyzing the distribution condition of the first voltage values of each single body of the battery pack in an idle state, the abnormal single body is determined by comparing the actual capacity with the normal single body after the abnormal single body is determined, the abnormal single body battery core is determined in two stages, the method can be applied to the battery pack in the whole life cycle, the determination accuracy is high, and the problem that the existing detection method for the abnormal single body of the battery pack cannot detect the single body of the battery core which is put into use is solved. First, a method for determining an abnormal cell of a battery pack provided in an embodiment of the present application will be described.
Fig. 1 shows a schematic flow chart of a method for determining an abnormal cell of a battery pack according to an embodiment of the present application. As shown in fig. 1, the method may include the steps of:
s110, acquiring a first voltage value of each single body of the battery pack in the first state.
The method comprises the following steps that a voltage acquisition system can be used for acquiring a first voltage value of each single battery pack in a first state; the first state is a battery pack idle state, and voltage of the battery pack fluctuates from a use state (charging or power supply) to a non-use state, as shown in fig. 2, the battery pack idle state is determined to be a state that the battery pack is charged or supplied with power for a preset time, for example, the battery pack is charged for 30min, and at the moment, the voltage is relatively stable, so that the real working condition of the battery pack can be reflected.
And S120, determining the distribution quantity of each monomer at each first voltage value according to the first voltage value.
In one embodiment, S120 may include:
and drawing a normal distribution curve chart representing the distribution quantity of each monomer at each first voltage value according to the first voltage value, wherein the normal distribution curve chart can determine the distribution quantity of each monomer at each first voltage value according to the normal distribution curve chart as shown in fig. 3.
The normal distribution curve graph can reflect the distribution rule of each monomer at each first voltage value.
S130, determining the monomer corresponding to the first voltage value with the distribution quantity according with the preset proportion of the total monomer quantity as an abnormal monomer.
If the single body is normal, the overall difference of the single body voltages is not too large, the voltages are close, the number of the single bodies accounts for more total number of the single bodies, the preset proportion can be set to be a lower value, for example, 0-15%, and the single body corresponding to the first voltage value in the interval has abnormality at a high probability.
The embodiment of the application determines the abnormal single body by analyzing the distribution condition of the first voltage value of each single body of the battery pack in the idle state, and performs double-stage determination on the abnormal single body battery cell by comparing the abnormal single body with the normal single body to perform recheck of a determination result, so that the battery pack can be applied to the battery pack in the whole life cycle, and the determination accuracy is high.
In one embodiment, the method further comprises:
and S140, acquiring the first charge state value of the reference normal cell, the second charge state value of the reference abnormal cell and the net capacity of the battery pack.
The reference normal monomer is any monomer other than the abnormal monomer. The state of charge value can be obtained by various methods, for example, an open-circuit voltage method by a discharge experiment method, an ampere-hour integration method, a kalman filter method, a neural network method, and the like, which are all the prior art and are not described in detail.
And S150, calculating a first actual capacity of the reference normal monomer according to the first state of charge value and the net capacity, and calculating a second actual capacity of the abnormal monomer according to the second state of charge value and the net capacity.
In one embodiment, the first state of charge value comprises a state of charge value SOC of the battery pack in a first state with reference to a normal cell1And the battery pack refers to the SOC value SOC of the normal cell in the second state2(ii) a The second state of charge value comprises the state of charge value SOC of the abnormal single battery pack in the first state3And the state of charge (SOC) value of the abnormal single body of the battery pack in the second state4(ii) a The second state is the state of the battery pack after the battery pack is discharged or charged for a preset time in the first state.
First actual capacity Q1It can be calculated by the following equation:
Q1＝Q/|SOC2-SOC1|
second actual capacity Q2It can be calculated by the following equation:
Q2＝Q/|SOC4-SOC3|
wherein Q is a net capacity, which refers to a capacity charged by the battery pack through a charging operation, or a difference between a discharged capacity and a feedback capacity after the battery pack is operated.
And S160, under the condition that the difference value between the first actual capacity and the second actual capacity does not accord with the preset value interval, re-determining the abnormal monomer as the normal monomer.
If the two monomers are normal monomers, the respective actual capacities of the two monomers are similar, the preset value interval is determined to be a larger value interval, if the difference value between the first actual capacity and the second actual capacity does not conform to the preset value interval, it indicates that the actual capacities of the "abnormal monomer" determined in the step S130 and the reference normal monomer are similar, the result of the "abnormal monomer" determined in the step S130 is wrong, the "abnormal monomer" is actually a normal monomer, and the "abnormal monomer" is determined to be a normal monomer again. This indicates that the reason causing the step S130 to determine it as "abnormal cell" is not that the cell itself is faulty, but that the reason causing the cell to have a problem in circuit connection such as poor contact causes the step S130 to determine the cell as "abnormal cell", in which case, notification information may be generated for notifying maintenance personnel to repair the circuit, so that the cell determined to be "normal" again can be normally supplied with power, avoiding unnecessary replacement of a cell in a good condition, and saving cost.
The embodiment of the application determines the abnormal single body by analyzing the distribution condition of the first voltage value of each single body of the battery pack in the idle state, and performs double-stage determination on the abnormal single body battery cell by comparing the abnormal single body with the normal single body to perform recheck of a determination result, so that the battery pack can be applied to the battery pack in the whole life cycle, and the determination accuracy is high.
Fig. 1-3 illustrate a method for determining abnormal cells of a battery pack, and the following describes a device provided in an embodiment of the present application with reference to fig. 4 and 5.
Fig. 4 is a schematic structural diagram illustrating a device for determining abnormal cells of a battery pack according to an embodiment of the present application, where each module in the device shown in fig. 4 has a function of implementing each step in fig. 1, and can achieve the corresponding technical effect. As shown in fig. 4, the apparatus may include:
the obtaining module 410 is configured to obtain a first voltage value of each cell of the battery pack in a first state, where the first state is an idle state of the battery pack;
a determining module 420, configured to determine, according to the first voltage values, the number of the cells distributed at each first voltage value;
the determining module 420 is further configured to determine a cell corresponding to the first voltage value with the distribution number according with the preset proportion of the total cell number as an abnormal cell.
The embodiment of the application determines the abnormal single body by analyzing the distribution condition of the first voltage value of each single body of the battery pack in the idle state, and performs double-stage determination on the abnormal single body battery cell by comparing the abnormal single body with the normal single body to perform recheck of a determination result, so that the battery pack can be applied to the battery pack in the whole life cycle, and the determination accuracy is high.
In one embodiment, the apparatus further comprises a computing module;
the obtaining module 410 is further configured to obtain a first state of charge value of the reference normal cell, a second state of charge value of the reference abnormal cell, and a net capacity of the battery pack; the reference normal monomer is any monomer except the abnormal monomer;
the calculating module 430 is configured to calculate a first actual capacity of the reference normal cell according to the first state of charge value and the net capacity, and calculate a second actual capacity of the abnormal cell according to the second state of charge value and the net capacity;
the determining module 420 is further configured to re-determine the abnormal cell as the normal cell when the difference between the first actual capacity and the second actual capacity does not meet the preset value interval.
In one embodiment, the first state of charge value comprises a state of charge value SOC of the battery pack in a first state with reference to a normal cell1And the battery pack refers to the SOC value SOC of the normal cell in the second state2The second state is the state of the battery pack after the battery pack is discharged or charged in the first state for a preset time;
a calculation module 430, specifically configured to calculate the first actual capacity Q by the following equation1：
Q1＝Q/|SOC2-SOC1|
Wherein Q is net capacity.
In an embodiment, the determining module 420 is specifically configured to:
drawing a normal distribution curve chart representing the distribution quantity of each monomer at each first voltage value according to the first voltage value;
and determining the distribution quantity of each monomer at each first voltage value according to the normal distribution curve graph.
The embodiment of the application determines the abnormal single body by analyzing the distribution condition of the first voltage value of each single body of the battery pack in the idle state, and performs double-stage determination on the abnormal single body battery cell by comparing the abnormal single body with the normal single body to perform recheck of a determination result, so that the battery pack can be applied to the battery pack in the whole life cycle, and the determination accuracy is high.
Fig. 5 shows a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 5, the apparatus may include a processor 501 and a memory 502 storing computer program instructions.
Specifically, the processor 501 may include a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement the embodiments of the present Application.
In one example, the Memory 502 may be a Read Only Memory (ROM). In one example, the ROM may be mask programmed ROM, programmable ROM (prom), erasable prom (eprom), electrically erasable prom (eeprom), electrically rewritable ROM (earom), or flash memory, or a combination of two or more of these.
The processor 501 reads and executes the computer program instructions stored in the memory 502 to implement the method in the embodiment shown in fig. 1, and achieves the corresponding technical effect achieved by the embodiment shown in fig. 1 executing the method, which is not described herein again for brevity.
In one example, the electronic device can also include a communication interface 503 and a bus 510. As shown in fig. 5, the processor 501, the memory 502, and the communication interface 503 are connected via a bus 510 to complete communication therebetween.
The communication interface 503 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present application.
The electronic device may execute the method for determining the abnormal single battery pack in the embodiment of the present application, so as to achieve the corresponding technical effects of the method for determining the abnormal single battery pack described in fig. 1.
In addition, in combination with the method for determining the abnormal cell of the battery pack in the above embodiments, the embodiments of the present application may be implemented by providing a computer storage medium. The computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement the method for determining abnormal cells of a battery pack according to any of the above embodiments.
It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present application.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic Circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Aspects of the present application are described above 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 block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, 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, enable the implementation of the functions/acts specified in the flowchart and/or block diagram block or blocks. Such a processor may be, but is not limited to, a general purpose processor, a special purpose processor, an application specific processor, or a field programmable logic circuit. It will also be understood that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware for performing the specified functions or acts, or combinations of special purpose hardware and computer instructions.
As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.
Claims (10)
1. A method for determining abnormal single cells of a battery pack is characterized by comprising the following steps:
acquiring a first voltage value of each monomer of a battery pack in a first state, wherein the first state is an idle state of the battery pack;
determining the distribution quantity of each monomer at each first voltage value according to the first voltage value;
and determining the monomer corresponding to the first voltage value with the distribution quantity according with the preset proportion of the total monomer quantity as an abnormal monomer.
2. The method of determining an abnormal cell of a battery pack according to claim 1, further comprising:
acquiring a first charge state value of a reference normal cell, a second charge state value of the reference abnormal cell and the net capacity of the battery pack; the reference normal monomer is any monomer except the abnormal monomer;
calculating a first actual capacity of the reference normal cell according to the first state of charge value and the net capacity, and calculating a second actual capacity of the abnormal cell according to the second state of charge value and the net capacity;
and under the condition that the difference value between the first actual capacity and the second actual capacity does not accord with a preset value interval, re-determining the abnormal monomer as a normal monomer.
3. The method according to claim 2, wherein the first state of charge value includes a state of charge value of the reference normal cell of the battery pack in the first state and a state of charge value of the reference normal cell of the battery pack in the second state, and the second state is a state of the battery pack after a preset time of discharging or charging in the first state;
the first actual capacity is calculated by the following equation:
Q1＝Q/|SOC2-SOC1|
wherein Q is1Is the first actual capacity, Q is the net capacity, SOC2For the battery pack in the second state referring to the state of charge value, SOC of the normal cell1And the reference normal cell state-of-charge value is the state-of-charge value of the battery pack in the first state.
4. The method for determining abnormal cells of a battery pack according to any one of claims 1 to 3, wherein the determining the distribution number of each cell at each first voltage value according to the first voltage value comprises:
drawing a normal distribution curve chart representing the distribution quantity of each monomer at each first voltage value according to the first voltage value;
and determining the distribution quantity of each monomer at each first voltage value according to the normal distribution curve graph.
5. An apparatus for determining an abnormal cell of a battery pack, comprising:
the battery pack control device comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring a first voltage value of each single battery pack in a first state, and the first state is an idle state of the battery pack;
the determining module is used for determining the distribution quantity of each monomer at each first voltage value according to the first voltage value;
the determining module is further configured to determine the cell corresponding to the first voltage value, in which the distribution number meets a preset proportion of the total cell number, as an abnormal cell.
6. The apparatus for determining abnormal cells of a battery pack according to claim 5, wherein the apparatus further comprises a calculation module;
the acquisition module is further used for acquiring a first state of charge value of a reference normal cell, a second state of charge value of the reference abnormal cell and the net capacity of the battery pack; the reference normal monomer is any monomer except the abnormal monomer;
the calculation module is used for calculating a first actual capacity of the reference normal cell according to the first state of charge value and the net capacity, and calculating a second actual capacity of the abnormal cell according to the second state of charge value and the net capacity;
the determining module is further configured to re-determine the abnormal cell as a normal cell when a difference between the first actual capacity and the second actual capacity does not meet a preset value interval.
7. The apparatus for determining an abnormal cell of a battery pack according to claim 6, wherein the first state of charge value includes a state of charge value of the reference normal cell of the battery pack in the first state and a state of charge value of the reference normal cell of the battery pack in the second state, and the second state is a state of the battery pack after a preset time of discharging or charging in the first state;
the calculation module is specifically configured to calculate the first actual capacity by the following equation:
Q1＝Q/|SOC2-SOC1|
wherein Q is1Is the first actual capacity, Q is the net capacity, SOC2For the battery pack in the second state referring to the state of charge value, SOC of the normal cell1And the reference normal cell state-of-charge value is the state-of-charge value of the battery pack in the first state.
8. An electronic device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing a method of determining abnormal cells of a battery pack according to any one of claims 1 to 4.
9. A computer-readable storage medium, having stored thereon an information transfer-implementing program, which when executed by a processor implements the method for determining abnormal cells of a battery pack according to any one of claims 1 to 5.
10. A computer program product, wherein instructions in the computer program product, when executed by a processor of an electronic device, cause the electronic device to perform the method for determining abnormal cells of a battery pack according to any one of claims 1 to 4.
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Citations (5)
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