CN106291370A - Monomer inefficacy method for quick in parallel and device in a kind of connection in series-parallel set of cells - Google Patents
Monomer inefficacy method for quick in parallel and device in a kind of connection in series-parallel set of cells Download PDFInfo
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- CN106291370A CN106291370A CN201610585186.0A CN201610585186A CN106291370A CN 106291370 A CN106291370 A CN 106291370A CN 201610585186 A CN201610585186 A CN 201610585186A CN 106291370 A CN106291370 A CN 106291370A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
Abstract
The present invention relates to monomer inefficacy method for quick in parallel and device in a kind of connection in series-parallel set of cells, failure detection for each cell in parallel, this detection method uses the outer surface the most unidirectional coiling solenoid at each cell in parallel, Faraday law of electromagnetic induction is utilized indirectly to sample the size and Orientation of electric current in cell, and then the size and Orientation information of electric current of based on sampling judges whether cell lost efficacy, this detection method is simple, cost budgeting is relatively low, practicality is higher, the size of current achieved in monitoring batteries in parallel connection group in each single cell operation and direction, so have effectively achieved the quick detection of each cell in batteries in parallel connection group, improve detection accuracy and reliability, improve the safety of whole detection simultaneously, effectiveness and cell performance foreseeable ability.
Description
Technical field
The present invention relates to battery technology field, particularly relate to monomer in parallel in a kind of connection in series-parallel set of cells and lost efficacy quickly
Detection method and device.
Background technology
The atmospheric pollution caused along with the development of world car industry, the consumption of petroleum-based energy and motor vehicle emission and the earth
Greenhouse effect so that development new energy sources for automobile, the exploitation new power of automobile become world car industry and face the most urgent appointing
Business.Current novel environmental protection electric motor car generally use Li-ion batteries piles as power source, in environmental protection electric motor car
The application of the Li-ion batteries piles of the upper ten above strings the most up to a hundred of string achieves the biggest development, and has a extensive future.In reality
Border application in, lithium battery generally require connection in series-parallel use formed connection in series-parallel set of cells to reach the requirement of voltage, electric current, at present by
Group technology in battery is the best, battery with two side terminals is difficult to be guaranteed, and adding along with charge and discharge cycles number of times,
Difference between battery also can be increasing, causes battery management system to calculate at SOC and exist in terms of control strategy and much asks
Topic, and then affect the service life of power battery pack.Generally power battery pack is neutralized other cell concordance far short of what is expected
Cell be referred to as dead battery, if dead battery can be found out or look-ahead out, to power battery pack
Use and manage and all will have the biggest benefit.But, owing to the inherent attribute parameter of battery is relatively difficult to measure, tackle at present
The process of dead battery does not the most also have effective method, existing abatement detecting method mainly to have internal resistance measurement, charge and discharge
The methods such as electric capacity measuring, there is respective limitation in above-mentioned measuring method etc., such as practicality, effectiveness and conveniency
Deng, and said method all can not solve accuracy and the detection efficiency of failure detection well；Further, at power current
The battery scheme in groups that Chi Zuzhong connects after generally using first parallel connection, the monomer voltage of current battery management system monitoring is also
In parallel in groups after total voltage, it is impossible to monitor in parallel in groups after in power battery pack each cell true capacity change and
Cell performance changes.
Summary of the invention
The present invention is directed to the detection structure complexity of existing abatement detecting method existence, operation is complicated, practicality is poor, inspection
Accuracy and the detection efficiency surveyed are poor, and cannot detect in power battery pack the problems such as each cell state, it is provided that
Monomer inefficacy method for quick in parallel in a kind of connection in series-parallel set of cells, uses the outer surface at each cell in parallel the most single
To coiling solenoid, utilize Faraday law of electromagnetic induction indirectly to sample the size and Orientation of electric current in cell, and then sentence
Whether disconnected cell lost efficacy, and this detection method is simple and then reduces cost budgeting, and practicality is higher, it is achieved that power battery pack
In each monomer dead battery in parallel the most quickly detect, improve detection accuracy and reliability simultaneously.The invention still further relates to one
Plant monomer inefficacy device for fast detecting in parallel in connection in series-parallel set of cells.
Technical scheme is as follows:
Monomer inefficacy method for quick in parallel in a kind of connection in series-parallel set of cells, for the inefficacy of each cell in parallel
Detection, it is characterised in that in the outer surface the most unidirectional coiling solenoid of each cell in parallel, utilize faraday electromagnetic induction
Law sets up induction electromotive force and the relation computation model of electric current in cell in solenoid, according to the meter of relation computation model
Calculating the size and Orientation of electric current in the result described cell of sampling, size and Orientation based on described electric current detects described monomer
The volume change of battery and performance change to judge whether described cell lost efficacy.
Volume change and the performance of size and Orientation based on the described electric current described cell of detection change to judge
State cell whether to lose efficacy and specifically refer to: comparison current monolithic battery and the electric current in other cell charge and discharge process
The change of size variation and direction is the most consistent, causes the capacity of described current monolithic battery in conjunction with the size variation of the electric current of comparison
The sense of current change of change and comparison causes the performance of described current monolithic battery to change to judge described current monolithic
Whether battery lost efficacy.
In described cell of sampling after the size and Orientation of electric current, described electric current is carried out pretreatment, is then based on
Volume change and the performance of the size and Orientation described cell of detection of pretreated electric current change to judge described monomer
Whether battery lost efficacy.
In described cell of sampling after the size and Orientation of electric current, the size and Orientation information of described electric current is transmitted
To battery management module, described battery management module size and Orientation based on described electric current detects the capacity of described cell
Change and performance change to judge whether described cell lost efficacy, and monitoring report battery condition in real time.
After described electric current is carried out pretreatment, the size and Orientation information of described pretreated electric current is exported to battery
Management module, described battery management module size and Orientation based on described electric current detect described cell volume change and
Performance changes to judge whether described cell lost efficacy, and monitoring report battery condition in real time.
Described electric current carries out pretreatment and includes: denoising, and/or, A/D conversion process.
Monomer inefficacy device for fast detecting in parallel in a kind of connection in series-parallel set of cells, for the inefficacy of each cell in parallel
Detection, it is characterised in that include several solenoid, also includes current information acquisition processing module, the communication mould being sequentially connected with
Block and battery management module, the outer surface of the most unidirectional each cell being wound on parallel connection of each described solenoid, each spiral shell
Volution is all connected with current information acquisition processing module, and described current information acquisition processing module utilizes faraday electromagnetic induction
Law sets up the relation computation model of electric current in induction electromotive force and cell in solenoid and according to relation computation model
The size and Orientation of electric current in the result of calculation described cell of sampling, described communication module is used for current information acquisition process mould
Communications and data transmission between block and battery management module, described in described battery management module is transmitted based on described communication module
Volume change and the performance of the size and Orientation described cell of detection of electric current change to judge whether described cell loses
Effect.
Described battery management module monitors and report battery condition the most in real time；
And/or, described battery management module comparison current monolithic battery and the electricity in other cell charge and discharge process
The size variation of stream is the most consistent with direction change, and the size variation in conjunction with the electric current of comparison causes described current monolithic battery
Volume change and comparison sense of current change cause described current monolithic battery performance change with judge described currently
Whether cell lost efficacy.
Described current information acquisition processing module includes that the intelligence sample module being sequentially connected with, relational model calculating process mould
Block and A/D converter, described intelligence sample module is connected with each solenoid, and described A/D converter is connected with communication module,
Described intelligence sample module gathers the induction electromotive force information of each solenoid, and described relational model calculates processing module and utilizes farad
The law of electromagnetic induction sets up the relation computation model of electric current in induction electromotive force and cell in solenoid and according to relation
The size and Orientation of electric current, the electricity that described A/D converter will be sampled in the result of calculation described cell of sampling of computation model
The size and Orientation data of stream carry out analog digital conversion.
Described current information acquisition processing module also includes that denoising module, described denoising module are arranged at relation
Model calculates between processing module and A/D converter, and described denoising module is by the size and Orientation data of the electric current of sampling
Transmitting after carrying out denoising to A/D converter, described A/D converter is by the size and Orientation data of the electric current after denoising
Carry out analog digital conversion.
The technique effect of the present invention is as follows:
Monomer inefficacy method for quick in parallel in a kind of connection in series-parallel set of cells that the present invention relates to, employing is each parallel connection
The outer surface the most unidirectional coiling solenoid of cell, utilizes Faraday law of electromagnetic induction to set up induction electromotive force in solenoid
With the relation computation model of electric current in cell, sample electric current in cell according to the result of calculation of relation computation model
Size and Orientation, i.e. achieves the indirect sampling of the size and Orientation of electric current in cell, and then based on the electric current sampled
Size and Orientation information judges whether cell lost efficacy, and this detection method is simple and then reduces cost budgeting, and practicality is relatively
High, it is achieved that in power battery pack, each monomer dead battery in parallel the most quickly detects, improve detection accuracy and can simultaneously
By property.The present invention is dexterously by coiling solenoid on each cell, it is achieved each economize on electricity in monitoring batteries in parallel connection group
The current value in pond and direction thereof, so can realize monitoring in batteries in parallel connection group the size of current in each single cell operation and
Direction, have effectively achieved the quick detection of each cell in batteries in parallel connection group, improves the safety, effectively of whole detection
Property and cell performance foreseeable ability.
The invention still further relates to monomer inefficacy device for fast detecting in parallel in a kind of connection in series-parallel set of cells, including several helicals
Circle, also includes current information acquisition processing module, communication module and the battery management module being sequentially connected with, at current information collection
Reason module is also all connected with several solenoid.The inefficacy device for fast detecting that the present invention relates to and above-mentioned connection in series-parallel battery
In group, monomer inefficacy method for quick in parallel is corresponding, it will be appreciated that for being the above-mentioned connection in series-parallel set of cells realizing present invention proposition
The inefficacy device for fast detecting that middle monomer inefficacy method for quick in parallel is used, this inefficacy device for fast detecting structure letter
Single, practicality is high, it is possible to achieve efficiently, cell failure detection in parallel quickly and accurately, and improves the peace of whole detection
Quan Xing, effectiveness and cell performance foreseeable ability, be suitable for pushing away of new green environment protection power battery of electric vehicle group detection
Extensively with use.
Accompanying drawing explanation
Fig. 1 is that in the connection in series-parallel set of cells that the present invention relates to, the one of monomer inefficacy method for quick in parallel or device should
Use structural representation.
Fig. 2 is the structural representation of monomer inefficacy device for fast detecting in parallel in connection in series-parallel set of cells of the present invention.
Fig. 3 is a kind of preferred structure signal of monomer inefficacy device for fast detecting in parallel in connection in series-parallel set of cells of the present invention
Figure.
Fig. 4 is the another kind of preferred structure signal of monomer inefficacy device for fast detecting in parallel in connection in series-parallel set of cells of the present invention
Figure.
In figure, each label lists as follows:
1-parallel connection cell；2-solenoid.
Detailed description of the invention
The present invention will be described below in conjunction with the accompanying drawings.
The invention discloses monomer inefficacy method for quick in parallel in a kind of connection in series-parallel set of cells, for each list in parallel
The failure detection of body battery, as it is shown in figure 1, at each cell (cell 1 i.e. in parallel, it is possible to be called for short monomer electricity in parallel
Pond 1) outer surface the most unidirectional coiling solenoid 2, according to Faraday law of electromagnetic induction, the electric field of change produces magnetic field, and becomes
The magnetic field changed so that in solenoid 2 magnetic flux change, thus produce faradic current, first set up in solenoid 2 and sense
Electromotive force and the relation computation model of electric current in cell 1, according to the result of calculation sampling cell 1 of relation computation model
The size and Orientation of middle electric current, so can realize utilizing Faraday law of electromagnetic induction indirectly to sample electric current in cell
Size and Orientation, volume change and the performance of size and Orientation based on electric current detection cell change to judge cell
Whether lost efficacy, wherein, the size of electric current depends on the size of load, and the size loaded is joined generally according to practical application request
Put.Volume change and the performance of above-mentioned size and Orientation based on the electric current described cell of detection change to judge cell
Whether inefficacy specifically refers to: detection (or perhaps comparison) current monolithic battery and the electricity in other cell charge and discharge process
Size variation and the direction change of stream is the most consistent, causes the capacity of current monolithic battery in conjunction with the size variation of the electric current of comparison
Change (and then affecting the performance change of current monolithic battery) and the sense of current change of comparison cause current monolithic battery
Performance change to judge whether current monolithic battery lost efficacy.For concrete example i.e., in battery charge and discharge process, it is assumed that and
The size of current of other cells of connection is 1A, and the size of current of current monolithic battery is 0.5A (or 1.5A), the most currently
Cell is inconsistent with the size variation of the electric current in other cell charge and discharge process, so current monolithic battery is true
Real capacity changes, and then affects when the performance of cell changes, thus judges that current monolithic battery is as the electricity that lost efficacy
Pond；It is further assumed that in battery charge and discharge process, other cells in parallel and the size of current of current monolithic battery are equal
For 1A, and the sense of current of current monolithic battery is contrary with the sense of current of other cells in parallel, although then parallel connection
Other cells are identical with the size of current of current monolithic battery, but direction is different, current monolithic battery and other monomers
Sense of current change in battery charge and discharge process is inconsistent, so the performance of current monolithic battery changes, thus with
Sample judges that current monolithic battery is dead battery.
Preferably, indirectly can sample the size and Orientation of electric current in cell utilizing Faraday law of electromagnetic induction
After, electric current is carried out pretreatment (can carry out denoising, or A/D conversion process, or both combine), is then based on
Volume change and the performance of the size and Orientation detection cell of pretreated electric current change whether to judge cell
Lost efficacy.
It is highly preferred that utilizing Faraday law of electromagnetic induction indirectly to sample the size and Orientation of electric current in cell
After, the size and Orientation information of electric current is transmitted to battery management module, battery management module size and Orientation based on electric current
Volume change and the performance of detection cell change to judge whether cell lost efficacy, and can be according to reality application need
Monitor time realistic and report the state of each battery in connection in series-parallel set of cells；Or electric current is carried out pretreatment (can carry out at denoising
Reason, and/or, A/D conversion process) after, the size and Orientation information of pretreated electric current is exported to battery management module, electricity
Volume change and the performance of pond management module size and Orientation based on the electric current described cell of detection change to judge monomer
Whether battery lost efficacy, and monitoring report battery condition in real time.
The Faraday law of electromagnetic induction that utilizes that the present invention relates to is sampled the principle of the size of electric current in cell indirectly
It is described as follows:
In power battery pack, the concordance of each cell is generally difficult to ensure, along with the increase of discharge and recharge number of times, loses
The effect cell emf of battery, the internal resistance of cell, battery capacity will great changes will take place, may result in power battery pack in electric discharge
During, easily produce the situation that such as current failure battery is charged by other cells so that in dead battery
Size of current and the sense of current change.
With reference to Fig. 1, according to Faraday law of electromagnetic induction, set up the induction electromotive force in solenoid 2 and monomer electricity in parallel
The relation computation model of the size of current in pond 1 is as follows:
φ=BS (2)
Formula (2) being substituted into formula (1) and can draw the value of induction electromotive force E in solenoid, wherein, E is induction electric
Gesture value, φ is magnetic flux in solenoid 2, and B is cell 1 aborning magnetic induction in solenoid 2 in parallel, and S is spiral shell
Coil 2 cross-sectional area.
The magnetic induction density B produced due to cell 1 in parallel and electric current i direct proportionality, thus magnetic flux with
Electric current i is proportional, it may be assumed that
N φ=Li (3)
Wherein, L is inductance coefficent.
Formula (3) is substituted into formula (1) can draw, induction electromotive force E and electricity in cell 1 in parallel in solenoid 2
Stream i is changing into proportional relation, it may be assumed that
From formula (4) it can be seen that for given solenoid 2, owing to its resistance is changeless, according to relation meter
Calculate the size and Orientation of electric current in the result of calculation sampling cell 1 in parallel of model, so it can be appreciated that being by inspection
Survey faradic size in solenoid 2 and indirectly draw the size of current of cell 1 in parallel, thus may determine that further also
Whether connection cell 1 lost efficacy.
The invention still further relates to monomer inefficacy device for fast detecting in parallel in a kind of connection in series-parallel set of cells, for each list in parallel
The failure detection of body battery, its structure, as in figure 2 it is shown, include several solenoid, also includes that the current information being sequentially connected with is adopted
Collection processing module, communication module and battery management module, the most unidirectional each cell being wound on parallel connection of each solenoid
Outer surface, each spiral coil is all connected with current information acquisition processing module, and current information acquisition processing module utilizes farad
The law of electromagnetic induction sets up the relation computation model of electric current in induction electromotive force and cell in solenoid and according to relation
The size and Orientation of electric current in the result of calculation sampling cell of computation model, communication module is used for realizing current information collection
Communications and data transmission between processing module and battery management module, such as, transmit control instruction to current information acquisition process
Module is to realize current sample control, and the size and Orientation information of the electric current sampled by current information acquisition processing module passes
Transport to battery management module, the volume change of battery management module size and Orientation based on electric current detection cell and performance
Change is to judge whether cell lost efficacy.
Battery management module can also monitor in real time according to practical application request and report each battery in connection in series-parallel set of cells
State.
Preferably, volume change and the performance of battery management module size and Orientation based on electric current detection cell becomes
Change and specifically refer to judging whether cell lost efficacy: in comparison current monolithic battery and other cell charge and discharge process
The change of the size variation of electric current and direction is the most consistent, causes the appearance of current monolithic battery in conjunction with the size variation of the electric current of comparison
Amount changes and then causes the performance change of current monolithic battery and the sense of current change of comparison to cause current monolithic battery
Performance change to judge whether current monolithic battery lost efficacy.
Preferably, current information acquisition processing module can include intelligence sample module, the relational model meter being sequentially connected with
Calculating processing module and A/D converter, the present invention detects the preferred structure of device as shown in Figure 3, intelligence sample module also with each spiral shell
Coil is connected, and A/D converter is also connected with communication module, and intelligence sample module gathers the induction electromotive force letter of each solenoid
Breath, relational model calculates processing module and utilizes Faraday law of electromagnetic induction to set up induction electromotive force and cell in solenoid
The relation computation model of middle electric current the result of calculation according to relation computation model are sampled the size of electric current in cell and side
To, the size and Orientation data of the electric current of sampling are carried out analog digital conversion by A/D converter, and the data after analog digital conversion are more conducive to logical
The data transmission of letter module.
It is highly preferred that on the basis of shown in Fig. 3, current information acquisition processing module can also include denoising module,
The present invention detects another preferred structure of device as shown in Figure 4, and denoising module is arranged at relational model and calculates processing module
And between A/D converter, denoising module transmit after the size and Orientation data of the electric current of sampling are carried out denoising to
A/D converter, the size and Orientation data of the electric current after denoising are carried out analog digital conversion by A/D converter.
It should be pointed out that, that the above detailed description of the invention can make those skilled in the art that the present invention is more fully understood
Create, but limit the invention never in any form.Therefore, although the present invention is created by this specification referring to the drawings with embodiment
Make and have been carried out detailed description, it will be understood by those skilled in the art, however, that still the invention can be modified
Or equivalent, in a word, all are without departing from the technical scheme of the spirit and scope of the invention and improvement thereof, and it all should be contained
Cover in the middle of the protection domain of the invention patent.
Claims (10)
1. a monomer inefficacy method for quick in parallel in connection in series-parallel set of cells, for the inefficacy inspection of each cell in parallel
Survey, it is characterised in that in the outer surface the most unidirectional coiling solenoid of each cell in parallel, utilize faraday electromagnetic induction fixed
Rule sets up induction electromotive force and the relation computation model of electric current in cell in solenoid, according to the calculating of relation computation model
The size and Orientation of electric current in the result described cell of sampling, size and Orientation based on described electric current detects described monomer electricity
The volume change in pond and performance change to judge whether described cell lost efficacy.
Monomer inefficacy method for quick in parallel in connection in series-parallel set of cells the most according to claim 1, it is characterised in that base
Size and Orientation in described electric current detects the volume change of described cell and performance changes to judge described cell
Whether inefficacy specifically refers to: the size variation of the electric current in comparison current monolithic battery and other cell charge and discharge process and
Whether direction change is consistent, causes volume change and the ratio of described current monolithic battery in conjunction with the size variation of the electric current of comparison
To sense of current change cause described current monolithic battery performance change to judge whether described current monolithic battery loses
Effect.
Monomer inefficacy method for quick in parallel in connection in series-parallel set of cells the most according to claim 1 and 2, its feature exists
In, in described cell of sampling after the size and Orientation of electric current, described electric current is carried out pretreatment, is then based on pretreatment
After the size and Orientation of electric current detect the volume change of described cell and performance changes to judge that described cell is
No inefficacy.
Monomer inefficacy method for quick in parallel in connection in series-parallel set of cells the most according to claim 1 and 2, its feature exists
In, in described cell of sampling after the size and Orientation of electric current, the size and Orientation information of described electric current is transmitted to electricity
Pond management module, described battery management module size and Orientation based on described electric current detects the volume change of described cell
Change with performance to judge whether described cell lost efficacy, and monitoring report battery condition in real time.
Monomer inefficacy method for quick in parallel in connection in series-parallel set of cells the most according to claim 3, it is characterised in that will
After described electric current carries out pretreatment, the size and Orientation information of described pretreated electric current is exported to battery management module,
Described battery management module size and Orientation based on described electric current detects volume change and the performance change of described cell
To judge whether described cell lost efficacy, and monitoring report battery condition in real time.
6., according to monomer inefficacy method for quick in parallel in the connection in series-parallel set of cells described in claim 3 or 5, its feature exists
In, described electric current carries out pretreatment and includes: denoising, and/or, A/D conversion process.
7. a monomer inefficacy device for fast detecting in parallel in connection in series-parallel set of cells, for the inefficacy inspection of each cell in parallel
Survey, it is characterised in that include several solenoid, also include current information acquisition processing module, the communication module being sequentially connected with
And battery management module, the outer surface of the most unidirectional each cell being wound on parallel connection of each described solenoid, each spiral
Circle is all connected with current information acquisition processing module, and described current information acquisition processing module utilizes faraday electromagnetic induction fixed
Rule sets up the relation computation model of electric current in induction electromotive force and cell in solenoid and according to the meter of relation computation model
Calculating the size and Orientation of electric current in the result described cell of sampling, described communication module is used for current information acquisition processing module
And communications and data transmission, the described electricity that described battery management module is transmitted based on described communication module between battery management module
Volume change and the performance of the size and Orientation described cell of detection of stream change to judge whether described cell lost efficacy.
Monomer inefficacy device for fast detecting in parallel in connection in series-parallel set of cells the most according to claim 7, it is characterised in that institute
State battery management module to monitor the most in real time and report battery condition；
And/or, described battery management module comparison current monolithic battery and the electric current in other cell charge and discharge process
The change of size variation and direction is the most consistent, causes the capacity of described current monolithic battery in conjunction with the size variation of the electric current of comparison
The sense of current change of change and comparison causes the performance of described current monolithic battery to change to judge described current monolithic
Whether battery lost efficacy.
9., according to monomer inefficacy device for fast detecting in parallel in the connection in series-parallel set of cells described in claim 7 or 8, its feature exists
In, described current information acquisition processing module include the intelligence sample module being sequentially connected with, relational model calculate processing module and
A/D converter, described intelligence sample module is connected with each solenoid, and described A/D converter is connected with communication module, described
Intelligence sample module gathers the induction electromotive force information of each solenoid, and described relational model calculates processing module and utilizes Faradic electricity
Law of magnetic induction is set up the relation computation model of electric current in induction electromotive force and cell in solenoid and calculates according to relation
The size and Orientation of electric current in the result of calculation described cell of sampling of model, described A/D converter is by the electric current of sampling
Size and Orientation data carry out analog digital conversion.
Monomer inefficacy device for fast detecting in parallel in connection in series-parallel set of cells the most according to claim 9, it is characterised in that
Described current information acquisition processing module also includes that denoising module, described denoising module are arranged at relational model and calculate
Between processing module and A/D converter, the size and Orientation data of the electric current of sampling are carried out denoising by described denoising module
Transmitting after process to A/D converter, the size and Orientation data of the electric current after denoising are carried out modulus by described A/D converter
Conversion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585186.0A CN106291370B (en) | 2016-07-22 | 2016-07-22 | Monomer failure rapid detection method and device in parallel in a kind of series-parallel battery pack |
| AU2017100660A AU2017100660A4 (en) | 2016-07-22 | 2017-06-06 | Rapid failure detection method of parallel single batteries in a serial-parallel battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610585186.0A CN106291370B (en) | 2016-07-22 | 2016-07-22 | Monomer failure rapid detection method and device in parallel in a kind of series-parallel battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN106291370A true CN106291370A (en) | 2017-01-04 |
| CN106291370B CN106291370B (en) | 2019-01-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109080468A (en) * | 2018-06-27 | 2018-12-25 | 中航锂电（洛阳）有限公司 | A kind of band overcharges the method for early warning and system of the battery modules of protective device |
| CN113270657A (en) * | 2021-07-20 | 2021-08-17 | 四川新能源汽车创新中心有限公司 | Battery matrix dead pixel detection system and detection method based on electromagnetic induction effect |
| CN113296012A (en) * | 2021-05-20 | 2021-08-24 | 中国科学技术大学 | Lithium battery pack consistency detection method and device based on in-situ magnetic field imaging |
| CN114325435A (en) * | 2021-12-22 | 2022-04-12 | 蜂巢能源科技股份有限公司 | Detection method and device of failed battery cell and battery system |
| CN115856677A (en) * | 2023-03-03 | 2023-03-28 | 宁德时代新能源科技股份有限公司 | Battery self-discharge detection method and device, electronic equipment and storage medium |
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| CN109080468A (en) * | 2018-06-27 | 2018-12-25 | 中航锂电（洛阳）有限公司 | A kind of band overcharges the method for early warning and system of the battery modules of protective device |
| CN113296012A (en) * | 2021-05-20 | 2021-08-24 | 中国科学技术大学 | Lithium battery pack consistency detection method and device based on in-situ magnetic field imaging |
| CN113270657A (en) * | 2021-07-20 | 2021-08-17 | 四川新能源汽车创新中心有限公司 | Battery matrix dead pixel detection system and detection method based on electromagnetic induction effect |
| CN113270657B (en) * | 2021-07-20 | 2021-12-28 | 四川新能源汽车创新中心有限公司 | Battery matrix dead pixel detection system and detection method based on electromagnetic induction effect |
| CN114325435A (en) * | 2021-12-22 | 2022-04-12 | 蜂巢能源科技股份有限公司 | Detection method and device of failed battery cell and battery system |
| CN114325435B (en) * | 2021-12-22 | 2023-07-14 | 蜂巢能源科技股份有限公司 | Method and device for detecting failed battery cell and battery system |
| CN115856677A (en) * | 2023-03-03 | 2023-03-28 | 宁德时代新能源科技股份有限公司 | Battery self-discharge detection method and device, electronic equipment and storage medium |
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| Publication number | Publication date |
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| CN106291370B (en) | 2019-01-25 |
| AU2017100660A4 (en) | 2017-07-06 |
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