CN109216786A - A kind of management system of battery pack - Google Patents
A kind of management system of battery pack Download PDFInfo
- Publication number
- CN109216786A CN109216786A CN201710514438.5A CN201710514438A CN109216786A CN 109216786 A CN109216786 A CN 109216786A CN 201710514438 A CN201710514438 A CN 201710514438A CN 109216786 A CN109216786 A CN 109216786A
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- China
- Prior art keywords
- battery
- mode
- single battery
- master controller
- batteries
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Secondary Cells (AREA)
Abstract
The present invention provides a kind of batteries management systems, the battery pack includes multiple single batteries, the management system includes detector, master controller, and the piece controller of each single battery is controlled respectively, the information for the single battery that the master controller is fed back according to detector formulates the operational mode of single battery, the operational mode includes entire run mode, and underrun mode, the operational mode that the piece controller is formulated according to master controller controls the charge and discharge cycles of single battery.Batteries management system of the invention, by carrying out non-uniform control to each battery, to improve the service life of battery pack.
Description
Technical field
The present invention relates to battery technology fields, more particularly to a kind of management system of battery pack.
Background technique
The immense pressure of the energy and environment is faced, the people of 21 century are continuously searching for clean substitute fuel, to change
It is apt to worsening traffic emission status, energy-saving and emission-reduction become the topic of whole world common concern therewith, and electric vehicle is as section
One important means of energy emission reduction, is increasingly becoming national governments and automaker's focus of attention.
Currently, one of kernel component as electric car battery system, is not also very mature, however it remains Hen Duoshi
The problem of border: such as power battery volume and specific discharge capacity are low, cause electric car continual mileage short；The ratio function of power battery
Rate is low, causes the power performance of automobile poor；What is particularly worth mentioning is that different due to single battery performance each in battery system
It causes, makes performance indicator of the power battery pack on electric car that the original level of monocell, reduced service life far be not achieved
Even more than ten times of several times, this result drastically influences service performance, development process and the market-oriented progress of electric car.
Summary of the invention
The present invention provides a kind of batteries management system, the battery pack includes multiple single batteries, the management system
System includes detector, master controller, and controls the piece controller of each single battery respectively, and the master controller is according to inspection
The information for surveying the single battery of device feedback formulates the operational mode of single battery, and the operational mode includes entire run mode,
And underrun mode, the operational mode that the piece controller is formulated according to master controller, the charge and discharge to single battery
Electricity circulation is controlled.Batteries management system of the invention, by carrying out non-uniform control to each battery, to improve electricity
The service life of pond group.
Specific scheme is as follows:
A kind of batteries management system, the battery pack include multiple single batteries, and the management system includes detector,
Master controller, and the piece controller of each single battery is controlled respectively, the list that the master controller is fed back according to detector
The information of body battery formulates the operational mode of single battery, and the operational mode includes entire run mode and underload fortune
Row mode, the operational mode that the piece controller is formulated according to master controller control the charge and discharge cycles of single battery
System；When running the battery pack, master controller makes partial monosomy battery be in entire run mode, bears at percentage of batteries with low
Lotus operational mode.
Further, the entire run mode is the charge and discharge cycles that battery is fully charged and is substantially discharged.
Further, in the underrun mode, the Efficient Cycle capacity of battery is lower than electricity in entire run mode
The Efficient Cycle capacity in pond.
Further, the Efficient Cycle capacity of battery is battery in entire run mode in the underrun mode
The 70%-90% of Efficient Cycle capacity.
Further, the detector detects the parameter of each single battery, and the parameter is selected from the voltage of single battery,
Electric current and temperature.
Further, the single battery controller controls single battery, and keeps monomer electric according to the instruction of master controller
The operational mode in pond switches between entire run mode and underrun mode.
Further, the operational mode further includes activation pattern, when system battery pack out of service, to monomer
Start battery activation pattern, the activation pattern include the following steps,
1) single battery, is heated to 40-50 DEG C；
2) supersonic oscillations, are carried out to the single battery；
3) it, stands；
4) pulse current activation, is carried out to the battery that step 3 obtains；The process of pulse current activation includes:
A), by battery discharge to by voltage, by voltage be 2.7-2.8V；
B), battery temperature is adjusted to 40-50 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
10-30min, pulse current magnitude 1-2C, the positive pulse time is equal with the negative pulse time, is 3-5s, is spaced 1-2s；
C), battery is charged to by voltage, by voltage be 4.2-4.3V；
D), battery temperature is adjusted to 40-50 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
10-30min, pulse current magnitude 3-5C, the positive pulse time is equal with the negative pulse time, is 10-20s, is spaced 3-5s；
E), repeat step A-D 0-5 times.
The invention has the following beneficial effects:
1, according to the state of single battery in battery pack, corresponding operational mode is formulated, improves the operation longevity of single battery
Life；
2, battery is activated after battery pack is out of service, improves the internal environment of battery；
3, by carrying out the ultrasonic activation of short time to battery, the electrolytic salt for being deposited on electrode surface is shaken off, is made
It is re-dissolved in the electrolytic solution.
4, pass through at moderate temperatures, the pulse activation of charge and discharge endpoint current potential, so that the active material of positive and negative anodes is activated,
Reduce internal resistance.
5, by the detection to battery after activation, the successful battery of activation is selected, the cycle life of battery is improved.
Specific embodiment
The present invention will be described in more detail below by specific embodiment, but protection scope of the present invention not by
It is limited to these embodiments.
Embodiment 1
Batteries management system, the management system include detector, master controller, and control each monomer electricity respectively
The piece controller in pond, the battery pack include 100 single batteries, when detector detects monomer battery voltage lower than average
When voltage 20%, to the underrun mode of the 70% Efficient Cycle capacity of start battery, entire run mode is otherwise carried out,
When battery pack out of service, start activation pattern:
1) single battery, is heated to 40 DEG C；
2) supersonic oscillations, are carried out to the battery；The frequency of the supersonic oscillations is 10kHz, and sonication times are
200s；
3) 10h, is stood；
4) pulse current activation, is carried out to the battery that step 3 obtains；The process of pulse current activation includes:
A), by battery discharge to by voltage, by voltage be 2.7V；
B), battery temperature is adjusted to 40 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
30min, pulse current magnitude 1C, the positive pulse time is equal with the negative pulse time, is 5s, is spaced 2s；
C), battery is charged to by voltage, by voltage be 4.2V；
D), battery temperature is adjusted to 40 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
30min, pulse current magnitude 3C, the positive pulse time is equal with the negative pulse time, is 20s, is spaced 5s.
Embodiment 2
Batteries management system, the management system include detector, master controller, and control each monomer electricity respectively
The piece controller in pond, the battery pack include 100 single batteries, when detector detects that single battery temperature is higher than averagely
When temperature 30%, to the underrun mode of the 80% Efficient Cycle capacity of start battery, entire run mode is otherwise carried out,
When battery pack out of service, start activation pattern:
1) single battery, is heated to 45 DEG C；
2) supersonic oscillations, are carried out to the battery；The frequency of the supersonic oscillations is 50kHz, and sonication times are
100s；
3) 15h, is stood；
4) pulse current activation, is carried out to the battery that step 3 obtains；The process of pulse current activation includes:
A), by battery discharge to by voltage, by voltage be 2.8V；
B), battery temperature is adjusted to 45 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
20min, pulse current magnitude 2C, the positive pulse time is equal with the negative pulse time, is 3s, is spaced 2s；
C), battery is charged to by voltage, by voltage be 4.3V；
D), battery temperature is adjusted to 45 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
30min, pulse current magnitude 5C, the positive pulse time is equal with the negative pulse time, is 20s, is spaced 5s；
E), repeat step A-D 5 times.
Embodiment 3
Batteries management system, the management system include detector, master controller, and control each monomer electricity respectively
The piece controller in pond, the battery pack include 100 single batteries, when detector detects monomer battery voltage lower than average
When voltage 10%, to the underrun mode of the 90% Efficient Cycle capacity of start battery, entire run mode is otherwise carried out,
When battery pack out of service, start activation pattern:
1) single battery, is heated to 40 DEG C；
2) supersonic oscillations, are carried out to the battery；The frequency of the supersonic oscillations is 30kHz, and sonication times are
200s；
3) 20h, is stood；
4) pulse current activation, is carried out to the battery that step 3 obtains；The process of pulse current activation includes:
A), by battery discharge to by voltage, by voltage be 2.7V；
B), battery temperature is adjusted to 50 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
20min, pulse current magnitude 2C, the positive pulse time is equal with the negative pulse time, is 4s, is spaced 1s；
C), battery is charged to by voltage, by voltage be 4.2V；
D), battery temperature is adjusted to 50 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
30min, pulse current magnitude 5C, the positive pulse time is equal with the negative pulse time, is 20s, is spaced 5s；
E), repeat step A-D 2 times.
Embodiment 4
Batteries management system, the management system include detector, master controller, and control each monomer electricity respectively
The piece controller in pond, the battery pack include 100 single batteries, when detector detects single battery electric current lower than average
When voltage 20%, to the underrun mode of the 80% Efficient Cycle capacity of start battery, entire run mode is otherwise carried out,
When battery pack out of service, start activation pattern:
1) single battery, is heated to 50 DEG C；
2) supersonic oscillations, are carried out to the battery；The frequency of the supersonic oscillations is 40kHz, and sonication times are
100s；
3) 5h, is stood；
4) pulse current activation, is carried out to the battery that step 3 obtains；The process of pulse current activation includes:
A), by battery discharge to by voltage, by voltage be 2.75V；
B), battery temperature is adjusted to 45 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
20min, pulse current magnitude 1.5C, the positive pulse time is equal with the negative pulse time, is 4s, is spaced 2s；
C), battery is charged to by voltage, by voltage be 4.25V；
D), battery temperature is adjusted to 45 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
20min, pulse current magnitude 4C, the positive pulse time is equal with the negative pulse time, is 15s, is spaced 4s；
E), repeat step A-D 4 times.
Embodiment 5
Batteries management system, the management system include detector, master controller, and control each monomer electricity respectively
The piece controller in pond, the battery pack include 100 single batteries, when detector detects monomer battery voltage lower than average
When voltage 15%, to the underrun mode of the 75% Efficient Cycle capacity of start battery, entire run mode is otherwise carried out,
When battery pack out of service, start activation pattern:
1) single battery, is heated to 50 DEG C；
2) supersonic oscillations, are carried out to the battery；The frequency of the supersonic oscillations is 20kHz, and sonication times are
100s；
3) 15h, is stood；
4) pulse current activation, is carried out to the battery that step 3 obtains；The process of pulse current activation includes:
A), by battery discharge to by voltage, by voltage be 2.8V；
B), battery temperature is adjusted to 40 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
30min, pulse current magnitude 2C, the positive pulse time is equal with the negative pulse time, is 5s, is spaced 2s；
C), battery is charged to by voltage, by voltage be 4.2V；
D), battery temperature is adjusted to 40 DEG C, battery is activated using alternately positive negative pulse stuffing, activationary time is
30min, pulse current magnitude 5C, the positive pulse time is equal with the negative pulse time, is 20s, is spaced 5s；
E), repeat step A-D 2 times.
Comparative example 1
The system of battery pack including 100 single batteries.
Test and result
By embodiment 1-5, the system of comparative example 1 is carried out charge and discharge cycles 400 times with the electric current of 2C respectively, works as single battery
Capacity attenuation be higher than 50% when, replace the battery, and record replacement battery number.As it can be seen that using the embodiment of the present invention
Battery pack extends the service life of single battery, and carries out activation recovery to percentage of batteries, to reduce replacement battery
Number.
Table 1
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it would be recognized that above-mentioned
Description be not considered as limitation of the present invention.
Claims (6)
1. a kind of batteries management system, the battery pack includes multiple single batteries, and the management system includes detector, always
Controller, and the piece controller of each single battery is controlled respectively, the monomer that the master controller is fed back according to detector
The information of battery formulates the operational mode of single battery, and the operational mode includes entire run mode and underrun
Mode, the operational mode that the piece controller is formulated according to master controller control the charge and discharge cycles of single battery；
When running the battery pack, master controller makes partial monosomy battery be in entire run mode, at percentage of batteries and underload
Operational mode.
2. the system as claimed in claim 1, the entire run mode is the charge and discharge that battery is fully charged and is substantially discharged
Circulation.
3. system as claimed in claim 2, in the underrun mode, the Efficient Cycle capacity of battery is lower than complete fortune
The Efficient Cycle capacity of battery in row mode.
4. system as claimed in claim 3, the Efficient Cycle capacity of battery is entire run in the underrun mode
The 70%-90% of the Efficient Cycle capacity of battery in mode.
5. the system as claimed in claim 1, the detector detects the parameter of each single battery, and the parameter is selected from monomer
The voltage of battery, electric current and temperature.
6. the system as claimed in claim 1, the single battery controller controls single battery, and according to the finger of master controller
Order switches the operational mode of single battery between entire run mode and underrun mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514438.5A CN109216786A (en) | 2017-06-29 | 2017-06-29 | A kind of management system of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710514438.5A CN109216786A (en) | 2017-06-29 | 2017-06-29 | A kind of management system of battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109216786A true CN109216786A (en) | 2019-01-15 |
Family
ID=64960651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710514438.5A Withdrawn CN109216786A (en) | 2017-06-29 | 2017-06-29 | A kind of management system of battery pack |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738525A (en) * | 2012-06-14 | 2012-10-17 | 沈阳中科正方新能源技术有限公司 | Battery management system of vehicle-mounted lithium power battery |
| CN202965997U (en) * | 2012-12-25 | 2013-06-05 | 北京理工大学 | Detection device for each battery of battery pack in electric automobile in working state |
| US20140225566A1 (en) * | 2006-02-09 | 2014-08-14 | Karl F. Scheucher | Scalable intelligent power supply system and method |
| CN104852435A (en) * | 2015-05-22 | 2015-08-19 | 聊城大学 | Electric automobile serial lithium battery management system and a management method thereof |
| CN106100022A (en) * | 2016-06-20 | 2016-11-09 | 江苏瀚海芯云网络科技有限公司 | Active equalization battery management system |
| CN205992756U (en) * | 2016-07-26 | 2017-03-01 | 上海航天工业（集团）有限公司 | Dynamical lithium-ion battery packs management system used for electric vehicle |
-
2017
- 2017-06-29 CN CN201710514438.5A patent/CN109216786A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140225566A1 (en) * | 2006-02-09 | 2014-08-14 | Karl F. Scheucher | Scalable intelligent power supply system and method |
| CN102738525A (en) * | 2012-06-14 | 2012-10-17 | 沈阳中科正方新能源技术有限公司 | Battery management system of vehicle-mounted lithium power battery |
| CN202965997U (en) * | 2012-12-25 | 2013-06-05 | 北京理工大学 | Detection device for each battery of battery pack in electric automobile in working state |
| CN104852435A (en) * | 2015-05-22 | 2015-08-19 | 聊城大学 | Electric automobile serial lithium battery management system and a management method thereof |
| CN106100022A (en) * | 2016-06-20 | 2016-11-09 | 江苏瀚海芯云网络科技有限公司 | Active equalization battery management system |
| CN205992756U (en) * | 2016-07-26 | 2017-03-01 | 上海航天工业（集团）有限公司 | Dynamical lithium-ion battery packs management system used for electric vehicle |
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Application publication date: 20190115 |
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