CN106654407B - A kind of method for group matching of battery of electric bicycle - Google Patents
A kind of method for group matching of battery of electric bicycle Download PDFInfo
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- CN106654407B CN106654407B CN201611068853.4A CN201611068853A CN106654407B CN 106654407 B CN106654407 B CN 106654407B CN 201611068853 A CN201611068853 A CN 201611068853A CN 106654407 B CN106654407 B CN 106654407B
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- battery
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- electric current
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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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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)
Abstract
The invention discloses a kind of method for group matching of battery of electric bicycle, including set up series loop, Battery formation, the acquisition of first time data, supplement electricity, second of data acquisition and combo step；The invention has the advantages that this method is easy to operate, can be used for mass production, is with uniformity good with the battery of this method combo, long service life, failure rate are low.
Description
Technical field
The present invention relates to a kind of battery grouping methods, specifically, being related to a kind of method for group matching of battery of electric bicycle.
Background technique
Electric vehicle industry development is rapid in recent years, and corresponding battery requirements amount is also to increase sharply, and battery of electric bicycle is most
That the battery of 3-7 12V is used in series, more batteries cooperate, in order to play the optimum performance of each battery need battery it
Between difference it is small as far as possible, performance is as close as possible；If difference is bigger than normal, this species diversity can be gradually in the use process of battery
Increase, influences the working effect of whole group battery, eventually result in whole group battery failure.Now universal combo technique is according to electricity
Pond closed circuit voltage, open-circuit voltage and battery capacity carry out combo, and two this kind of combo techniques do not account for the charging of battery
Difference between characteristic and discharge characteristic curve causes the battery returned goods by consistency difference to occupy quite high ratio.
To solve the above problems, the present invention provides a kind of battery of electric bicycle battery combo technique.
Summary of the invention
The object of the present invention is to provide a kind of method for group matching of battery of electric bicycle, according to the closed circuit voltage of battery,
Battery is carried out optimal combination by open-circuit voltage, battery capacity, float charge voltage and voltage downward trend.It is carried out using the technique
The features such as battery of combo is with uniformity good, long service life, failure rate is low.
The technical solution adopted by the present invention is that:
A kind of battery of electric bicycle battery combo technique, its main feature is that according to the closed circuit voltage of battery, open-circuit voltage,
Battery is carried out optimal combination by battery capacity, float charge voltage and voltage downward trend.
Specific steps have: setting up series loop, Battery formation, the acquisition of first time data, supplement electricity, second of data acquisition
With combo step；
A, series loop is set up
It is a circuit by n battery series connection, while filling sulfuric acid content is in each single lattice of every battery
33.0-33.8% colloidal electrolyte；
B, Battery formation
After 0.5~2h of battery standing in a step, with electric current 3~6h of charging of 0.5~1.2A, then electric current is improved
Continue 16~30h of charging to 1.8~2.5A, be then allowed to stand 0.5~2h, then is charged after 10~18h again with the electric current of 1.8~2.5A
0.5~2h is stood, is then charged after 10~20h charges and is discharged with the electric current of 1.0~2.0A, is down to cell circuit voltage
Stop electric discharge when 10.5~11.5V × n, then again with electric current 8~12h of charging of 1.8~2.5A, using the quiet of 0.5~2h
It postpones and continues the 6~12h that charges with the electric current of 1.0~2.0A, is i.e. completion Battery formation step；
C, first time data acquire
Continue to stand 3-5h after the completion of Battery formation, then cell circuit is put according to the electric current of 6.0 ± 0.02A
Electricity, upon discharging between when reaching 100~110min, be acquired to obtain V1 with voltage of the logging to every battery, work as battery
Circuit total voltage is acquired to obtain V2, data in 10.5~10.8V × n with voltage data of the logging to every battery
Stop electric discharge after having acquired；
D, supplement electricity
Continue 6~12h of charging with the electric current of 1.8~2.8A, is then allowed to stand 0.5~2h, then fill with the electric current of 0.8~1.5A
6~10h of electricity is continued the 1~4h that charged with the electric current of 0.8~1.5A after standing 0.5~2h, is standing 0.5~2h, then again with
Electric current 3~4h of charging of 0.15A, the acid solution that finally every inside battery is had more than needed are extracted out, and keeping every battery is lean solution state；
E, second of data acquisition
It is charged to battery with 14.8~15.0V × n constant pressure, it is floating with logging record battery after 0.5~1h of constant pressure
Charging voltage V3 terminates charging, lays down the connecting line between battery, covers safety valve after standing 3~6h, uses after standing 11~23h
Multimeter is by only test battery open circuit voltage V4；
F, combo
Combo is carried out to battery according to voltage V2, V2 should be maintained between 10.0~11.1V, voltage V2 < 10.0V or electricity
The battery of pressure V2 > 11.1V does not participate in combo, and voltage V2 range is the battery in 11.10~10.9V according to maximum allowable electricity
Pressure difference≤0.03V carries out combo, and voltage V2 range is battery in 10.95~10.70 according to maximum permissible voltage difference≤0.08V
Combo is carried out, voltage V2 range is that the battery in 10.80~10.50 carries out combo, electricity according to maximum permissible voltage difference≤0.15V
Pressing V2 range is that the battery in 10.60~10.00 carries out combo, the maximum allowable electricity according to maximum permissible voltage difference≤0.3V
Pressure difference, which refers to, subtracts the resulting value of minimum voltage with ceiling voltage in group battery.
In the f step, also need to meet open-circuit voltage V4 during combo, i.e., in institute's combo, most with battery in group
It is the number of elements of battery in the combo that big difference in open circuit voltage, which answers≤0.01V × N, N,.
It in the f step, also needs to meet float charge voltage V3 during combo, i.e., in institute's combo, with the maximum for organizing battery
It is the number of elements of battery in the combo that floating charging pressure difference, which answers≤0.05V × N, N,.
During combo, also in requisition for voltage decline difference V1-V2 is met, that is, in matched combo, voltage V2 range is 11.10
Battery in~10.9V need to meet voltage decline difference≤0.02V, and voltage V2 range is that the battery in 10.95~10.70 needs to meet
Voltage declines poor≤0.04 V, and voltage V2 range is that the battery in 10.80~10.50 need to meet voltage decline difference≤0.08V, electricity
Pressure V2 range is that the battery in 10.60~10.00 need to meet voltage decline difference≤0.1V.
The series loop can have a plurality of, and the battery between series loop under the same conditions can intersect combo.
N=the 18-24.
The invention has the advantages that this method is easy to operate, can be used for mass production, has with the battery of this method combo
Consistency is good, and long service life, failure rate are low.
Specific embodiment
The present embodiment is by taking 6-DZM-12 battery as an example.
The colloidal electrolyte of filling sulfuric acid content 33.0~33.8% in every single lattice of battery, and with 20 batteries for one
A series loop is melted into according to table 1:
Charging terminate after standing 3-5h, discharged according to the electric current of 6.0 ± 0.02A battery, upon discharging between reach
When to 100-110min, be acquired (V1) with voltage of the logging to every battery, when cell circuit total voltage 10.5~
When 10.8V × 20, it is acquired (V2) with voltage data of the logging to every battery, and record electric discharge.After data have acquired
Stop electric discharge, supplement electricity is carried out to battery according to table 2.
After procedure above end of run, the constant-voltage charge of 14.8~15.0V × 20 is carried out to battery, when 0.5~1h of constant pressure
Battery float voltage (V3) is recorded with logging.Terminate charging, lay down the connecting line between battery, covers peace after standing 3~6h
Full valve.With multimeter by only testing battery open circuit voltage (V4) when the total 36~48h of time of repose of battery.
Then combo is carried out.
Combo is carried out to battery according to voltage V2, V2 should be maintained between 10.0~11.1V, voltage V2 < 10.0V or electricity
The battery of pressure V2 > 11.1V does not participate in combo, and voltage V2 range is the battery in 11.10~10.9V according to maximum allowable electricity
Pressure difference≤0.03V carries out combo, and voltage V2 range is battery in 10.95~10.70 according to maximum permissible voltage difference≤0.08V
Combo is carried out, voltage V2 range is that the battery in 10.80~10.50 carries out combo, electricity according to maximum permissible voltage difference≤0.15V
Pressing V2 range is that the battery in 10.60~10.00 carries out combo, the maximum allowable electricity according to maximum permissible voltage difference≤0.3V
Pressure difference, which refers to, subtracts the resulting value of minimum voltage with ceiling voltage in group battery.It also needs to meet open-circuit voltage during combo
V4, i.e., in institute's combo, the maximum open circuit voltage difference with battery in group answers≤0.01V × N, and N is the number of elements of battery in the combo.Match
It also needs to meet float charge voltage V3 during group, i.e., in institute's combo, answers≤0.05V × N with the maximum floating charging pressure difference for organizing battery,
N is the number of elements of battery in the combo.Also in requisition for voltage decline difference V1-V2 is met, that is, in matched combo, voltage V2 range is
Battery in 11.10~10.9V need to meet voltage decline difference≤0.02V, and voltage V2 range is the battery in 10.95~10.70
Need to meet voltage decline poor≤0.04 V, voltage V2 range be 10.80~10.50 in battery need to meet voltage decline it is poor≤
0.08V, voltage V2 range are that the battery in 10.60~10.00 need to meet voltage decline difference≤0.1V.
It will be clear that series loop can have a plurality of, the battery between series loop under the same conditions can be with
Intersect combo, realizes mass combo.
Claims (6)
1. a kind of method for group matching of battery of electric bicycle, it is characterised in that: including setting up series loop, Battery formation, first
Secondary data acquisition, supplement electricity, second of data acquisition and combo step；
A, series loop is set up
Be a circuit by the series connection of n battery, at the same toward filling sulfuric acid content in each single lattice of every battery for 33.0~
33.8% colloidal electrolyte；
B, Battery formation
After 0.5~2h of battery standing in a step, with electric current 3~6h of charging of 0.5~1.2A, then electric current is improved to 1.8
~2.5A continues 16~30h of charging, is then allowed to stand 0.5~2h, then to stand again after 10~18h of electric current charging of 1.8~2.5A
Then 0.5~2h is charged after 10~20h charges with the electric current of 1.0~2.0A and is discharged, is down to 10.5 to cell circuit voltage
Stop electric discharge when~11.5V × n, then again with electric current 8~12h of charging of 1.8~2.5A, after the standing of 0.5~2h
Continue the 6~12h that charges with the electric current of 1.0~2.0A, i.e. completion Battery formation step；
C, first time data acquire
Continue 3~5h of standing after the completion of Battery formation, is then discharged according to the electric current of 6.0 ± 0.02A cell circuit, when
It when discharge time reaches 100~110min, is acquired to obtain V1 with voltage of the logging to every battery, when cell circuit is total
Voltage is acquired to obtain V2, data have been acquired in 10.5~10.8V × n with voltage data of the logging to every battery
Stop electric discharge afterwards；
D, supplement electricity
Continue 6~12h of charging with the electric current of 1.8~2.8A, is then allowed to stand 0.5~2h, then with the electric current charging 6 of 0.8~1.5A
~10h is continued the 1~4h that charged with the electric current of 0.8~1.5A after standing 0.5-2h, 0.5~2h is being stood, then again with 0.15A
Electric current charge 3~4h, the acid solution that finally every inside battery is had more than needed is extracted out, and keeping every battery is lean solution state；
E, second of data acquisition
It is charged to battery with 14.8~15.0V × n constant pressure, with logging record battery float electricity after 0.5~1h of constant pressure
V3 is pressed, charging is terminated, lays down the connecting line between battery, safety valve is covered after standing 3~6h, uses general-purpose after standing 11~23h
Table is by only test battery open circuit voltage V4；
F, combo
Combo is carried out to battery according to voltage V2, V2 should be maintained between 10.0-11.1V, voltage V2 < 10.0V or voltage V2 >
The battery of 11.1V does not participate in combo, voltage V2 range be battery in 11.10-10.9V according to maximum permissible voltage it is poor≤
0.03V carries out combo, and voltage V2 range is that the battery in 10.95-10.70 is matched according to maximum permissible voltage difference≤0.08V
Group, voltage V2 range are that the battery in 10.80-10.50 carries out combo, voltage V2 model according to maximum permissible voltage difference≤0.15V
It encloses and carries out combo according to maximum permissible voltage difference≤0.3V for the battery in 10.60-10.00, the maximum permissible voltage difference is
Refer to and subtracts the resulting value of minimum voltage with ceiling voltage in group battery.
2. a kind of method for group matching of battery of electric bicycle according to claim 1, it is characterised in that: in the f step,
It also needs to meet open-circuit voltage V4 during combo, i.e., in institute's combo, the maximum open circuit voltage difference with battery in group answers≤0.01V
× N, N are the number of elements of battery in the combo.
3. a kind of method for group matching of battery of electric bicycle according to claim 1 or 2, it is characterised in that: in the f step,
It also needs to meet float charge voltage V3 during combo, i.e., in institute's combo, answer with the maximum floating charging pressure difference for organizing battery≤0.05V ×
N, N are the number of elements of battery in the combo.
4. according to a kind of method for group matching of battery of electric bicycle of claim 3, it is characterised in that: in matched combo, voltage V2
Range is that the battery in 11.10~10.9V need to meet voltage decline difference≤0.02V, and voltage V2 range is in 10.95~10.70
Battery need to meet voltage decline poor≤0.04 V, voltage V2 range be 10.80~10.50 in battery need to meet voltage decline
Difference≤0.08V, voltage V2 range are that the battery in 10.60~10.00 need to meet voltage decline difference≤0.1V, the voltage decline
Difference is V1-V2.
5. according to claim 1 or a kind of 4 method for group matching of battery of electric bicycle, it is characterised in that: the series loop can
A plurality of to have, the battery between series loop under the same conditions can intersect combo.
6. a kind of method for group matching of battery of electric bicycle according to claim 1, it is characterised in that: the n=18-24.
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| CN201611068853.4A CN106654407B (en) | 2016-11-29 | 2016-11-29 | A kind of method for group matching of battery of electric bicycle |
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| CN201611068853.4A CN106654407B (en) | 2016-11-29 | 2016-11-29 | A kind of method for group matching of battery of electric bicycle |
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| CN106654407B true CN106654407B (en) | 2019-05-21 |
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| CN108448181B (en) * | 2018-04-11 | 2020-04-17 | 广东力科新能源有限公司 | Dynamic direct-current impedance matching method and system for multi-serial-parallel lithium ion battery pack |
| 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 |
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| US6020743A (en) * | 1997-10-21 | 2000-02-01 | Compaq Computer Corporation | Method and apparatus for detecting failed batteries |
| US8080976B2 (en) * | 2006-12-11 | 2011-12-20 | Techtium Ltd. | Charging methods for battery powered devices |
| CN102903977B (en) * | 2012-09-29 | 2014-09-24 | 江苏恒迅中锂新能源科技有限公司 | Method for assembling lithium battery |
| CN104577226B (en) * | 2014-12-12 | 2016-10-05 | 超威电源有限公司 | A kind of method for group matching improving power battery pack service life cycle |
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