CN107482265B - A kind of compound formulation of rate battery pack - Google Patents
A kind of compound formulation of rate battery pack Download PDFInfo
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- CN107482265B CN107482265B CN201710750592.2A CN201710750592A CN107482265B CN 107482265 B CN107482265 B CN 107482265B CN 201710750592 A CN201710750592 A CN 201710750592A CN 107482265 B CN107482265 B CN 107482265B
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- rate
- platform area
- capacity
- discharge
- average heating
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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
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- 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)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention is suitable for battery pack and matches technical field, provides a kind of compound formulation of rate battery pack, this method comprises the following steps: obtaining the performance parameter of single battery；Section is given based on the performance parameter where single battery performance parameter value to classify to single battery；The consistent single battery of type is subjected to composition rate battery pack；Single battery is power type battery.The consistent monomer power-type single battery of performance parameter type is assembled into rate battery pack, since the performance of single battery is consistent, it is thus more excellent to the performance of entire battery, volume type consistent single battery in platform area is such as assembled into rate battery pack, has electricity operation interval consistency good；The consistent single battery of average heating rate is formed into rate battery pack, battery is longer；The consistent single battery of self-discharge rate is formed into rate battery pack, the equalization performance of battery is excellent.
Description
Technical field
The invention belongs to battery packs to match technical field more particularly to a kind of compound formulation of rate battery pack.
Background technique
Lithium ion battery apply in recent years it is more and more extensive, wherein new-energy automobile and energy storage field be lithium ion increase most
Tens of or even hundreds of single batteries are usually passed through in series or in parallel group in large-scale energy storage device by fast industry
It is fitted together, to reach the voltage and capacity of design.And the battery being used in series, it is desirable that have between battery good consistent
Property, it could fully play design performance, capacity and the service life of battery.
The prior art, which is mainly related to, puts battery pack applied to full be full of of pure electric automobile or energy storage energy-storage battery group, general
All over the method for group matching used it is: measuring the parameters such as capacity, internal resistance, the self-discharge rate of single battery the stepping, it is specified that parameters
Range, the carry out combo use of same shelves；But mixed power electric car, battery pack generally carry out group using the battery of rate
Match, rate battery pack usually and without using full full of the capacity put, and only some small-scale capacity section repeatedly
Charging and discharging, thus existing full assembling for rate battery pack is not applied for full of the compound formulation for putting battery pack.
Summary of the invention
The embodiment of the present invention provides a kind of compound formulation of rate battery pack, it is desirable to provide a kind of rate battery pack group
The method matched is suitable for hybrid vehicle.
The invention is realized in this way a kind of compound formulation of rate battery pack, this method comprises the following steps:
S1, the performance parameter for obtaining single battery；
S2, single battery is divided based on the performance parameter given section where the single battery performance parameter value
Class；
S3, the consistent single battery of type is carried out to composition rate battery pack；
The single battery is power type battery.
Further, when the performance parameter is the capacity of platform area, the capacity of the platform area includes: charging platform
The capacity in area and the capacity in discharge platform area, the capacity in the charging platform area include: specified multiplying power charging curve platform area
Capacity and the capacity of maximum multiplying power charging curve platform area；The capacity in the discharge platform area includes: specified rate discharge curves
The capacity of platform area and the capacity of maximum rate discharge curves platform area；
The step S2 is specific as follows:
Section is given based on the platform area capacity where the capability value of platform area, and platform area capacity point is carried out to single battery
Class specifically comprises the following steps:
Specified multiplying power charging curve platform area capacity where capability value based on specified multiplying power charging curve platform area is given
Determine section and specified rate of charge platform area capacity classified carried out to single battery,
Specified rate discharge curves platform area capacity where capability value based on specified rate discharge curves platform area is given
Determine section and nominal discharge multiplying power platform area capacity classified is carried out to single battery；
Maximum multiplying power charging curve platform area capacity where capability value based on maximum multiplying power charging curve platform area is given
Determine section and maximum charge multiplying power platform area capacity classified is carried out to single battery；
Maximum rate discharge curves platform area capacity where capability value based on maximum rate discharge curves platform area is given
Determine section and maximum discharge-rate platform area capacity classified is carried out to single battery；
The step S3 is specific as follows:
Volume type consistent single battery in platform area is formed into rate battery pack, i.e., by specified rate of charge platform area
Volume type, nominal discharge multiplying power platform area volume type, maximum charge multiplying power platform area volume type and maximum discharge-rate
Volume type consistent single battery in platform area forms rate battery pack.
Further, when the performance parameter is platform area capacity and when average heating rate, the average heating speed
Rate includes: that maximum charge multiplying power average heating rate and maximum discharge-rate average heating rate, the maximum charge multiplying power are flat
Equal heating rate is the heating curve for charging to full piezoelectric voltage from empty piezoelectric voltage based on maximum charge multiplying power, and the slave curve of acquisition is most
Low temperature rises to the average heating rate of curve maximum temperature process, and the maximum discharge-rate average heating rate is based on most
Big discharge-rate is discharged to the heating curve of sky piezoelectric voltage from full piezoelectric voltage, and the slave curve minimum temperature of acquisition rises to curve highest
The average heating rate of temperature course；
The step S2 is specific as follows:
Section is given based on the platform area capacity where the platform area capability value, and platform area capacity is carried out to single battery
Classification；
Section is given based on the average heating rate where the average heating rate value, and average rise is carried out to single battery
The classification of warm rate, specific as follows:
It is given based on the maximum charge multiplying power average heating rate where the maximum charge multiplying power average heating rate value
Section carries out the classification of maximum charge multiplying power average heating rate to single battery；
It is given based on the maximum discharge-rate average heating rate where the maximum discharge-rate average heating rate value
Section carries out maximum discharge-rate average heating rate classification to single battery；
The step S3 is specific as follows:
Platform area volume type and the consistent single battery of average heating rate type are formed into rate battery pack, institute
It states equal heating rate type and unanimously refers to that maximum charge multiplying power average heating rate type and maximum multiplying power discharging averagely heat up speed
Rate type is consistent.
Further, when the performance parameter is platform area capacity, average heating rate and self-discharge rate,
The step S2 is specifically included:
Section is given based on the platform area capacity where the platform area capability value, and platform area capacity is carried out to single battery
Classification, section is given based on the average heating rate where the average heating rate value, average heating is carried out to single battery
The classification of rate, while section is given based on the self-discharge rate where self-discharge rate value, single battery progress self-discharge rate is divided
Class；
The step S3 is specifically included:
By platform area volume type, average heating rate type and the consistent single battery composition of self-discharge rate type
Rate battery pack.
Further, which is characterized in that the acquisition methods of the trivial capacity of charging platform include:
DQ/dV curve is calculated based on charging curve；
Obtain corresponding two voltage value of two peak values in dQ/dV curve；
Corresponding two charge value of the voltage value of lookup two in the charging curve；
The absolute value of the two electricity differences is charging platform area capacity.
Further, the acquisition methods of the trivial capacity of the discharge platform include:
DQ/dV curve is calculated based on discharge curve；
Obtain corresponding two voltage value of two peak values in dQ/dV curve；
Corresponding two charge value of the voltage value of lookup two in the discharge curve；
The absolute value of the two electricity differences is discharge platform area capacity.
The consistent monomer power-type single battery of performance parameter type is assembled into rate battery pack, due to single battery
Performance is consistent, thus more excellent to the performance of entire battery, and volume type consistent single battery in platform area is such as assembled into multiplying power
Type battery pack has electricity operation interval consistency good；The consistent single battery of average heating rate is formed into rate battery
Group, battery are longer；The consistent single battery of self-discharge rate is formed into rate battery pack, the equalization performance of battery
It is excellent.
Detailed description of the invention
Fig. 1 is the flow chart of rate battery pack compound formulation provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the flow chart of rate battery pack compound formulation provided in an embodiment of the present invention, and this method includes following step
It is rapid:
S1, the performance parameter for obtaining single battery；
In embodiments of the present invention, single battery generally uses power-type single battery, the performance parameter of power type battery
It generally comprises: platform area capacity, average heating rate and self-discharge rate；
The platform area capacity includes charging platform area capacity and discharge platform area capacity, and charging platform area capacity is to be based on filling
Electric curve acquisition, the specific method is as follows for charging platform area procurement of reserve capacity:
DQ/dV curve is calculated based on charging curve, two peak value corresponding voltage values in dQ/dV curve are obtained, in charging curve
Corresponding two charge value of two voltage values of middle lookup, the absolute value of two electricity differences are charging platform area capacity, of the invention real
It applies in example, charging platform area capacity includes specified multiplying power charging platform area's capacity and maximum multiplying power charging platform area capacity；
Wherein, specified multiplying power charging platform area capacity is obtained based on specified multiplying power charging curve, specified multiplying power charging
Curve is that the charging that single battery detects during charging to full piezoelectric voltage from empty piezoelectric voltage using specified rate of charge is bent
Line；
Maximum multiplying power charging platform area capacity is obtained based on maximum multiplying power charging curve, and maximum multiplying power charging curve is
The charging curve that single battery detects during charging to full piezoelectric voltage from empty piezoelectric voltage using maximum charge multiplying power；
Discharge platform area capacity is obtained based on discharge curve, and the specific method is as follows for discharge platform area procurement of reserve capacity:
DQ/dV curve is calculated based on discharge curve, two peak value corresponding voltage values in dQ/dV curve are obtained, in discharge curve
Corresponding two charge value of two voltage values of middle lookup, the absolute value of two electricity differences are discharge platform area capacity, of the invention real
It applies in example, discharge platform area capacity includes specified multiplying power discharging platform area capacity and maximum multiplying power discharging platform area capacity；
Wherein, specified multiplying power discharging platform area capacity is obtained based on specified rate discharge curves, specified multiplying power discharging
Curve is the discharge curve that single battery uses nominal discharge multiplying power to detect during from full discharge of electricity to empty piezoelectric voltage；
Maximum multiplying power discharging platform area capacity is obtained based on maximum rate discharge curves, and maximum rate discharge curves are
The discharge curve that single battery uses nominal discharge multiplying power to detect during from empty piezoelectric voltage to full piezoelectric voltage.
Speed that the average heating rate includes: maximum charge multiplying power average heating rate and maximum discharge-rate averagely heats up
Rate, wherein
Maximum charge multiplying power average heating rate is to charge to full piezoelectric voltage from empty piezoelectric voltage based on maximum charge multiplying power
Heating curve, the slave curve minimum temperature of acquisition rise to the average heating rate of curve maximum temperature process；
Maximum discharge-rate average heating rate is to be based on being discharged to sky piezoelectric voltage from full piezoelectric voltage with maximum discharge-rate
Heating curve, the slave curve minimum temperature of acquisition rises to the average heating rate of curve maximum temperature process；
And self-discharge rate refers to that battery is charged to the general of total electricity by the specified multiplying power of use, stands 28 days at 30 DEG C,
The voltage change that measurement stands front and back obtains self-discharge rate.
S2, classified based on the given section of performance parameter where the single battery performance parameter value to single battery；
In embodiments of the present invention, performance parameter gives section and performance parameter corresponds, therefore, platform area capacity pair
Platform area capacity is answered to give section, it includes: specified rate discharge curves platform area capacity given area that platform area capacity, which gives section,
Between, specified multiplying power charging curve platform area capacity gives section, maximum rate discharge curves platform area capacity gives section and
Maximum multiplying power charging curve platform area capacity gives section, gives section pair based on the platform area capacity where the capability value of platform area
Single battery carries out the classification of platform area capacity, specifically comprises the following steps:
Specified multiplying power charging curve platform area capacity where capability value based on specified multiplying power charging curve platform area is given
Determine section and specified rate of charge platform area capacity classified carried out to single battery,
Specified rate discharge curves platform area capacity where capability value based on specified rate discharge curves platform area is given
Determine section and nominal discharge multiplying power platform area capacity classified is carried out to single battery；
Maximum multiplying power charging curve platform area capacity where capability value based on maximum multiplying power charging curve platform area is given
Determine section and maximum charge multiplying power platform area capacity classified is carried out to single battery；
Maximum rate discharge curves platform area capacity where capability value based on maximum rate discharge curves platform area is given
Determine section and maximum discharge-rate platform area capacity classified is carried out to single battery；
The execution sequence of above-mentioned steps can be without successive point and any execute sequence.
Average heating rate corresponds to average heating rate and gives section, and it includes: maximum electric discharge times that heating rate, which gives section,
Rate average heating rate gives section and maximum charge multiplying power average heating rate gives section, is based on the average heating
Heating rate where rate value gives the classification that section carries out average heating rate to single battery, specifically includes following step
It is rapid:
It is given based on the maximum charge multiplying power average heating rate where the maximum charge multiplying power average heating rate value
Section carries out the classification of maximum charge multiplying power average heating rate to single battery；
It is given based on the maximum discharge-rate average heating rate where the maximum discharge-rate average heating rate value
Section carries out maximum discharge-rate average heating rate classification to single battery；
Corresponding self-discharge rate is that self-discharge rate gives section, gives section pair based on the self-discharge rate where self-discharge rate
The classification of single battery progress self-discharge rate；
Platform area capacity in the embodiment of the present invention gives section, average heating rate gives section and self-discharge rate
Given section is all made of equipartition principle, is illustrated so that specified multiplying power charging curve platform area capacity gives section as an example, with electricity
Measure every 5% for one kind, i.e. 0-5% is the first kind, 5%-10% is the second class, 10%-15% be third class ..., 95%-
100% is eicosanoid, if specified multiplying power charging curve platform area capacity is 13%, as third class.
S3, the consistent single battery of type is formed into rate battery pack.
In embodiments of the present invention, work as performance parameter are as follows: when the capacity of platform area, by the consistent list of platform area volume type
The resistance of body battery composition rate function battery, the volume type of platform area unanimously refer to: by specified rate of charge platform area capacity
Type, nominal discharge multiplying power platform area volume type, maximum charge multiplying power platform area volume type and maximum discharge-rate platform
Area's volume type is consistent；
When performance parameter is platform area capacity and average heating rate, by platform area volume type and average heating
The consistent single battery of rate type forms rate battery pack, and average heating rate type unanimously refers to: maximum charge multiplying power
Average heating rate type and maximum multiplying power discharging average heating rate type are consistent；
When performance parameter is platform area capacity, average heating rate and when self-discharge rate, by platform area volume type,
Average heating rate type and the consistent single battery of self-discharge rate type form rate battery pack.
In the embodiment of the present invention by the way that volume type consistent single battery in platform area is assembled into rate battery pack, have
There is electricity operation interval consistency good；
By the way that the consistent single battery of average heating rate is formed rate battery pack, internal single battery aging
Rate is almost the same, avoids the problem that single single battery degree of aging is big and causes the reduced service life of entire battery pack；
By the way that the consistent single battery of self-discharge rate is formed rate battery pack, the equalization performance of battery is excellent.
Performance parameter in the embodiment of the present invention can choose any one or any two in above three performance parameter
The combination of a combination or three, the effect reached are that battery is made to be its superposition for corresponding to effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of compound formulation of rate battery pack, which is characterized in that described method includes following steps:
S1, the performance parameter for obtaining single battery；
S2, classified based on the given section of performance parameter where the single battery performance parameter value to single battery；
S3, the consistent single battery of type is carried out to composition rate battery pack；
The single battery is power type battery；
When the performance parameter is the capacity of platform area, the capacity of the platform area includes: the capacity in charging platform area and puts
The capacity of electric platform area, the capacity in the charging platform area include: the capacity and maximum times of specified multiplying power charging curve platform area
The capacity of rate charging curve platform area；The capacity in the discharge platform area include: specified rate discharge curves platform area capacity,
And the capacity of maximum rate discharge curves platform area；
The step S2 is specific as follows:
Section is given based on the platform area capacity where the capability value of platform area, and platform area capacity classified, tool are carried out to single battery
Body includes the following steps:
Specified multiplying power charging curve platform area capacity given area where capability value based on specified multiplying power charging curve platform area
Between to single battery carry out specified rate of charge platform area capacity classified,
Specified rate discharge curves platform area capacity given area where capability value based on specified rate discharge curves platform area
Between to single battery carry out nominal discharge multiplying power platform area capacity classified；
Maximum multiplying power charging curve platform area capacity given area where capability value based on maximum multiplying power charging curve platform area
Between to single battery carry out maximum charge multiplying power platform area capacity classified；
Maximum rate discharge curves platform area capacity given area where capability value based on maximum rate discharge curves platform area
Between maximum discharge-rate platform area capacity classified is carried out to single battery；
The step S3 is specific as follows:
Volume type consistent single battery in platform area is formed into rate battery pack, i.e., by specified rate of charge platform area capacity
Type, nominal discharge multiplying power platform area volume type, maximum charge multiplying power platform area volume type and maximum discharge-rate platform
Volume type consistent single battery in area's forms rate battery pack.
2. the compound formulation of rate battery pack as described in claim 1, which is characterized in that when the performance parameter is platform
When area's capacity and when average heating rate, the average heating rate includes: maximum charge multiplying power average heating rate and maximum
Discharge-rate average heating rate, the maximum charge multiplying power average heating rate are to be based on maximum charge multiplying power from empty piezoelectric voltage
The heating curve of full piezoelectric voltage is charged to, the slave curve minimum temperature of acquisition rises to the average heating speed of curve maximum temperature process
Rate, the maximum discharge-rate average heating rate is the liter for being discharged to sky piezoelectric voltage from full piezoelectric voltage based on maximum discharge-rate
Warm curve, the slave curve minimum temperature of acquisition rise to the average heating rate of curve maximum temperature process；
The step S2 is specific as follows:
Section is given based on the platform area capacity where the platform area capability value to divide single battery progress platform area capacity
Class；
Section is given based on the average heating rate where the average heating rate value, and average heating speed is carried out to single battery
The classification of rate, specifically comprises the following steps:
Section is given based on the maximum charge multiplying power average heating rate where the maximum charge multiplying power average heating rate value
The classification of maximum charge multiplying power average heating rate is carried out to single battery；
Section is given based on the maximum discharge-rate average heating rate where the maximum discharge-rate average heating rate value
Maximum discharge-rate average heating rate classification is carried out to single battery；
The step S3 is specific as follows:
Platform area volume type and the consistent single battery of average heating rate type are formed into rate battery pack, it is average to rise
Warm rate type unanimously refers to maximum charge multiplying power average heating rate type and maximum multiplying power discharging average heating rate type
It is consistent.
3. the compound formulation of rate battery pack as claimed in claim 2, which is characterized in that when the performance parameter is platform
When area's capacity, average heating rate and self-discharge rate,
The step S2 is specifically included:
Section is given based on the platform area capacity where the platform area capability value to divide single battery progress platform area capacity
Class gives section based on the average heating rate where the average heating rate value and carries out average heating rate to single battery
Classification, while based on where self-discharge rate value self-discharge rate give section to single battery carry out self-discharge rate classification；
The step S3 is specifically included:
Platform area volume type, average heating rate type and the consistent single battery of self-discharge rate type are formed into multiplying power
Type battery pack.
4. the compound formulation of the rate battery pack as described in claim 2 to 3 any claim, which is characterized in that charging
The acquisition methods of the trivial capacity of platform include:
DQ/dV curve is calculated based on charging curve；
Obtain corresponding two voltage value of two peak values in dQ/dV curve；
Corresponding two charge value of the voltage value of lookup two in the charging curve；
The absolute value of two electricity differences is charging platform area capacity.
5. the compound formulation of the rate battery pack as described in claim 2 to 3 any claim, which is characterized in that electric discharge
The acquisition methods of the trivial capacity of platform include:
DQ/dV curve is calculated based on discharge curve；
Obtain corresponding two voltage value of two peak values in dQ/dV curve；
Corresponding two charge value of the voltage value of lookup two in the discharge curve；
The absolute value of two electricity differences is discharge platform area capacity.
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| CN201710750592.2A CN107482265B (en) | 2017-08-28 | 2017-08-28 | A kind of compound formulation of rate battery pack |
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| CN201710750592.2A CN107482265B (en) | 2017-08-28 | 2017-08-28 | A kind of compound formulation of rate battery pack |
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| CN108899596A (en) * | 2018-06-29 | 2018-11-27 | 广东天劲新能源科技股份有限公司 | A kind of power battery method for group matching |
| CN112653210B (en) * | 2020-12-08 | 2022-09-13 | 湖南炬神电子有限公司 | Charger with data transmission function |
| CN115640702B (en) * | 2022-11-16 | 2023-06-09 | 武汉市蓝电电子股份有限公司 | Battery matching method and system |
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| US9519028B2 (en) * | 2013-08-08 | 2016-12-13 | The Boeing Company | Method and system for characterizing battery cells for use in battery packs |
| KR102316436B1 (en) * | 2014-11-17 | 2021-10-22 | 삼성전자주식회사 | Method for controlling different kind of battery cells and electronic device thereof |
| CN106299495A (en) * | 2015-05-25 | 2017-01-04 | 深圳市沃特玛电池有限公司 | A kind of method for group matching of lithium-ion-power cell |
| CN106257734A (en) * | 2015-06-17 | 2016-12-28 | 深圳市沃特玛电池有限公司 | A kind of lithium-ion-power cell method for group matching |
| CN105093124A (en) * | 2015-07-30 | 2015-11-25 | 武汉美格科技有限公司 | High-magnification type lithium battery grouping method |
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