CN107482265A - A kind of compound formulation of rate battery pack - Google Patents
A kind of compound formulation of rate battery pack Download PDFInfo
- Publication number
- CN107482265A CN107482265A CN201710750592.2A CN201710750592A CN107482265A CN 107482265 A CN107482265 A CN 107482265A CN 201710750592 A CN201710750592 A CN 201710750592A CN 107482265 A CN107482265 A CN 107482265A
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- rate
- platform area
- capacity
- cell
- discharge
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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 matches somebody with somebody technical field suitable for battery pack, there is provided a kind of compound formulation of rate battery pack, this method comprise the following steps：Obtain the performance parameter of cell；Section is given based on the performance parameter where cell performance parameter value to classify to cell；The consistent cell of type is carried out to form rate battery pack；Cell is power type battery.The consistent monomer power-type cell of performance parameter type is assembled into rate battery pack, because the performance of cell is consistent, it is thus more excellent to the performance of whole battery, volume type consistent cell in platform area is such as assembled into rate battery pack, has electricity operation interval uniformity good；The consistent cell of average heating rate is formed into rate battery pack, battery is longer；The consistent cell 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 pack to match somebody with somebody technical field, more particularly to a kind of compound formulation of rate battery pack.
Background technology
Lithium ion battery is in recent years using more and more extensive, and wherein new-energy automobile and energy storage field are that lithium ion increases most
Fast industry, in large-scale energy storage device, tens of or even hundreds of cells are typically passed through in series or in parallel group
It is fitted together, to reach the voltage of design and capacity.And the battery being used in series, it is desirable to which there is well consistent between battery
Property, it could fully play design performance, capacity and the life-span of battery.
Prior art mainly relates to stores the full full of putting battery pack of energy-storage battery group applied to pure electric automobile or energy, general
It is all over the method for group matching used：The parameters such as the capacity of cell, internal resistance, self-discharge rate are determined, it is specified that the stepping of parameters
Scope, 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 somebody with somebody, the capacity that rate battery pack generally and without using being completely full of is put, and simply in the capacity section of some small range repeatedly
Charging and discharging, thus existing full it is not applied for assembling for rate battery pack full of the compound formulation for putting battery pack.
The content 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 somebody with somebody, suitable for hybrid vehicle.
The present invention is achieved in that a kind of compound formulation of rate battery pack, and this method comprises the following steps：
S1, the performance parameter for obtaining cell；
S2, based on where the cell performance parameter value performance parameter give section cell is divided
Class；
S3, the consistent cell of type is carried out to composition rate battery pack；
The cell 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 of the chargin level taiwan 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 platform area capacity point is carried out to cell
Class, specifically comprise 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 cell,
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 cell；
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 cell；
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 cell；
The step S3 is specific as follows：
Volume type consistent cell 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
The consistent cell composition rate battery pack of platform area volume type.
Further, when the performance parameter is platform area capacity and during average heating rate, the average heating speed
Rate includes：Maximum charge multiplying power average heating rate and maximum discharge-rate average heating rate, the maximum charge multiplying power are put down
Equal heating rate is the heating curve for charging to full piezoelectric voltage from empty piezoelectric voltage based on maximum charge multiplying power, acquisition from curve 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 acquisition rises to curve highest from curve minimum temperature
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 platform area capacity is carried out to cell
Classification；
Section is given based on the average heating rate where the average heating rate value average rise is carried out to cell
The classification of warm speed, it is specific as follows：
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 cell；
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 to cell and classified；
The step S3 is specific as follows：
The consistent cell of platform area volume type and average heating rate type is formed into rate battery pack, institute
State that equal heating rate type unanimously refers to maximum charge multiplying power average heating rate type and maximum multiplying power discharging averagely heats 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 platform area capacity is carried out to cell
Classification, section is given based on the average heating rate where the average heating rate value average heating is carried out to cell
The classification of speed, while section is given based on the self-discharge rate where self-discharge rate value cell progress self-discharge rate is divided
Class；
The step S3 is specifically included：
Platform area volume type, average heating rate type and the consistent cell of self-discharge rate type are formed
Rate battery pack.
Further, it is characterised in that the acquisition methods of the trivial capacity of charging platform include：
DQ/dV curves are calculated based on charging curve；
Obtain two magnitudes of voltage corresponding to two peak values in dQ/dV curves；
Two charge values corresponding to two magnitudes of voltage are searched in the charging curve；
The absolute value of the two electricity differences is chargin level taiwan area capacity.
Further, the acquisition methods of the trivial capacity of the discharge platform include：
DQ/dV curves are calculated based on discharge curve；
Obtain two magnitudes of voltage corresponding to two peak values in dQ/dV curves；
Two charge values corresponding to two magnitudes of voltage are searched in the discharge curve；
The absolute value of the two electricity differences is discharge platform area capacity.
The consistent monomer power-type cell of performance parameter type is assembled into rate battery pack, due to cell
Performance is consistent, thus more excellent to the performance of whole battery, and volume type consistent cell in platform area such as is assembled into multiplying power
Type battery pack, have electricity operation interval uniformity good；The consistent cell of average heating rate is formed into rate battery
Group, battery are longer；The consistent cell of self-discharge rate is formed into rate battery pack, the equalization performance of battery
It is excellent.
Brief description of the drawings
Fig. 1 is the flow chart of rate battery pack compound formulation provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
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
Suddenly：
S1, the performance parameter for obtaining cell；
In embodiments of the present invention, cell typically uses power-type cell, the performance parameter of power type battery
Generally comprise：Platform area capacity, average heating rate and self-discharge rate；
The platform area capacity includes chargin level taiwan area capacity and discharge platform area capacity, and chargin level taiwan area capacity is to be based on filling
Electric curve acquisition, chargin level taiwan area procurement of reserve capacity specific method is as follows：
DQ/dV curves are calculated based on charging curve, two peak value corresponding voltage values in dQ/dV curves are obtained, in charging curve
Two charge values corresponding to two magnitudes of voltage of middle lookup, the absolute value of two electricity differences is chargin level taiwan area capacity, of the invention real
Apply in example, chargin level taiwan area capacity includes specified multiplying power chargin level taiwan area capacity and maximum multiplying power chargin level taiwan area capacity；
Wherein, specified multiplying power chargin level taiwan area capacity is obtained based on specified multiplying power charging curve, specified multiplying power charging
Curve is that cell charges to during full piezoelectric voltage the charging song detected in the specified rate of charge of use from empty piezoelectric voltage
Line；
Maximum multiplying power chargin level taiwan area capacity is obtained based on maximum multiplying power charging curve, and maximum multiplying power charging curve is
Cell charges to during full piezoelectric voltage the charging curve detected in use maximum charge multiplying power from empty piezoelectric voltage；
Discharge platform area capacity is obtained based on discharge curve, and discharge platform area procurement of reserve capacity specific method is as follows：
DQ/dV curves are calculated based on discharge curve, two peak value corresponding voltage values in dQ/dV curves are obtained, in discharge curve
Two charge values corresponding to two magnitudes of voltage of middle lookup, the absolute value of two electricity differences is discharge platform area capacity, of the invention real
Apply 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 detected during cell uses nominal discharge multiplying power 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 cell detects during using nominal discharge multiplying power from empty piezoelectric voltage to full piezoelectric voltage.
The average heating rate includes：Maximum charge multiplying power average heating rate and maximum discharge-rate averagely heat up speed
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 average heating rate that curve maximum temperature process is risen to from curve minimum temperature of acquisition；
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 average heating rate that curve maximum temperature process is risen to from curve minimum temperature of acquisition；
And self-discharge rate refers to battery is charged into the general of total electricity using specified multiplying power, 28 days are stood at 30 DEG C,
Measurement stands front and rear voltage change and obtains self-discharge rate.
S2, section is given based on performance parameter where the cell performance parameter value cell is classified；
In embodiments of the present invention, performance parameter gives section and corresponded with performance parameter, therefore, platform area capacity pair
Platform area capacity is answered to give section, platform area capacity, which gives section, to be included：Specified rate discharge curves platform area capacity given area
Between, specified multiplying power charging curve platform area capacity give section, maximum rate discharge curves platform area capacity give section and
Maximum multiplying power charging curve platform area capacity gives section, and section pair is given based on the platform area capacity where the capability value of platform area
Cell 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 cell,
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 cell；
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 cell；
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 cell；
The execution sequence of above-mentioned steps can be any execution sequence without point of priority.
Average heating rate corresponds to average heating rate and gives section, and heating rate, which gives section, to be included：Maximum electric discharge times
Rate average heating rate gives section and maximum charge multiplying power average heating rate gives section, based on the average heating
Heating rate where rate value gives the classification that section carries out average heating rate to cell, specifically includes following step
Suddenly：
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 cell；
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 to cell and classified；
It is that self-discharge rate gives section corresponding to self-discharge rate, section pair is given based on the self-discharge rate where self-discharge rate
Cell carries out the classification of 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 uses 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 the 3rd class ..., 95%-
100% is eicosanoid, if specified multiplying power charging curve platform area capacity is 13%, as the 3rd class.
S3, the consistent cell of type formed into rate battery pack.
In embodiments of the present invention, when performance parameter is：During the capacity of platform area, by the consistent list of platform area volume type
Body battery pack hinders into rate function battery, and the volume type of platform area unanimously refers 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 cell composition rate battery pack of rate type, average heating rate type unanimously refer 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 during self-discharge rate, by platform area volume type,
Average heating rate type and self-discharge rate type it is consistent cell composition rate battery pack.
In the embodiment of the present invention by the way that volume type consistent cell in platform area is assembled into rate battery pack, have
There is electricity operation interval uniformity good；
By the way that the consistent cell of average heating rate is formed into rate battery pack, its internal cell aging
Speed is basically identical, the problem of avoiding single cell degree of aging big and cause the service life of whole battery pack to shorten；
By the way that the consistent cell of self-discharge rate is formed into rate battery pack, the equalization performance of battery is excellent.
Performance parameter in the embodiment of the present invention can select any one in above three performance parameter, or any two
Individual combination, or the combination of three, its effect reached are the superpositions for making battery be its corresponding effect.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (6)
1. a kind of compound formulation of rate battery pack, it is characterised in that methods described comprises the following steps：
S1, the performance parameter for obtaining cell；
S2, based on where the cell performance parameter value performance parameter give section cell is classified；
S3, the consistent cell of type is carried out to composition rate battery pack；
The cell is power type battery.
2. the compound formulation of rate battery pack as claimed in claim 1, it is characterised in that when the performance parameter is platform
During the capacity in area, the capacity of the platform area includes：The capacity of chargin level taiwan area and the capacity in discharge platform area, the charging
The capacity of platform area includes：The capacity of specified multiplying power charging curve platform area and the capacity of maximum multiplying power charging curve platform area；
The capacity in the discharge platform area includes：The capacity of specified rate discharge curves platform area and maximum rate discharge curves platform
The capacity in area；
The step S2 is specific as follows：
Section is given based on the platform area capacity where the capability value of platform area platform area capacity classified, tool are carried out to cell
Body comprises 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 cell 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 nominal discharge multiplying power platform area capacity classified is carried out to cell；
Maximum multiplying power charging curve platform area capacity given area where capability value based on maximum multiplying power charging curve platform area
Between maximum charge multiplying power platform area capacity classified is carried out to cell；
Maximum rate discharge curves platform area capacity given area where capability value based on maximum rate discharge curves platform area
Between to cell carry out maximum discharge-rate platform area capacity classified；
The step S3 is specific as follows：
Volume type consistent cell 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
The consistent cell composition rate battery pack of area's volume type.
3. the compound formulation of rate battery pack as claimed in claim 1, it is characterised in that when the performance parameter is platform
During area's capacity and during 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
Charge to the heating curve of full piezoelectric voltage, the average heating speed that curve maximum temperature process is risen to from curve minimum temperature of acquisition
Rate, the maximum discharge-rate average heating rate are the liters for being discharged to sky piezoelectric voltage from full piezoelectric voltage based on maximum discharge-rate
Warm curve, the average heating rate that curve maximum temperature process is risen to from curve minimum temperature of acquisition；
The step S2 is specific as follows：
Section is given based on the platform area capacity where the platform area capability value to divide cell progress platform area capacity
Class；
Section is given based on the average heating rate where the average heating rate value average heating speed is carried out to cell
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 cell；
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 cell；
The step S3 is specific as follows：
The consistent cell of platform area volume type and average heating rate type is formed into rate battery pack, it is described equal
Heating rate type unanimously refers to maximum charge multiplying power average heating rate type and maximum multiplying power discharging average heating rate class
Type is consistent.
4. the compound formulation of rate battery pack as claimed in claim 3, it is characterised 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 cell progress platform area capacity
Class, section is given based on the average heating rate where the average heating rate value average heating rate is carried out to cell
Classification, while based on where self-discharge rate value self-discharge rate give section to cell carry out self-discharge rate classification；
The step S3 is specifically included：
Platform area volume type, average heating rate type and the consistent cell of self-discharge rate type are formed into multiplying power
Type battery pack.
5. the compound formulation of the rate battery pack as described in claim 2 to 4 any claim, it is characterised in that described
The acquisition methods of the trivial capacity of charging platform include：
DQ/dV curves are calculated based on charging curve；
Obtain two magnitudes of voltage corresponding to two peak values in dQ/dV curves；
Two charge values corresponding to two magnitudes of voltage are searched in the charging curve；
The absolute value of the two electricity differences is chargin level taiwan area capacity.
6. the compound formulation of the rate battery pack as described in claim 2 to 4 any claim, it is characterised in that described
The acquisition methods of the trivial capacity of discharge platform include：
DQ/dV curves are calculated based on discharge curve；
Obtain two magnitudes of voltage corresponding to two peak values in dQ/dV curves；
Two charge values corresponding to two magnitudes of voltage are searched in the discharge curve；
The absolute value of the two electricity differences is discharge platform area capacity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710750592.2A CN107482265B (en) | 2017-08-28 | 2017-08-28 | A kind of compound formulation of rate battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710750592.2A CN107482265B (en) | 2017-08-28 | 2017-08-28 | A kind of compound formulation of rate battery pack |
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| CN107482265A true CN107482265A (en) | 2017-12-15 |
| CN107482265B CN107482265B (en) | 2019-07-02 |
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| CN201710750592.2A Expired - Fee Related 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 |
| CN112653210A (en) * | 2020-12-08 | 2021-04-13 | 湖南炬神电子有限公司 | Charger with data transmission function |
| CN115640702A (en) * | 2022-11-16 | 2023-01-24 | 武汉市蓝电电子股份有限公司 | Battery grouping method and system |
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| CN112653210A (en) * | 2020-12-08 | 2021-04-13 | 湖南炬神电子有限公司 | Charger with data transmission function |
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| CN107482265B (en) | 2019-07-02 |
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