CN104103857B - Group matching method of lead-acid storage batteries - Google Patents
Group matching method of lead-acid storage batteries Download PDFInfo
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- CN104103857B CN104103857B CN201410298447.1A CN201410298447A CN104103857B CN 104103857 B CN104103857 B CN 104103857B CN 201410298447 A CN201410298447 A CN 201410298447A CN 104103857 B CN104103857 B CN 104103857B
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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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
- H01M10/06—Lead-acid accumulators
-
- 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
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a group matching method of lead-acid storage batteries. The method comprises the following steps of 1, performing discharging to detect the capacity of each battery and removing the batteries with capacities less than standard values, 2, grouping the batteries with discharge time differences less than 2min, connecting the batteries in the same group in series for charging or independently charging the single battery, and 3, measuring open-circuit voltage of each battery after charging completion and grouping the batteries with the discharge time differences less than 1min and open-circuit voltage differences less than preset voltage to complete group matching. According to the group matching method of the lead-acid storage batteries, the batteries with excessive voltage differences after once group matching are discharged and charged once to complete the group matching, so that rejection of the batteries due to irregular discharge depth after repeated charge and discharge group matching is avoided, a rejection rate of the batteries is reduced, the production cost can be saved effectively, open-circuit voltage rise of the batteries due to repeated charge and discharge can be avoided effectively, the service lives of the batteries can be prolonged, and the product quality can be improved.
Description
Technical field
The present invention relates to lead-acid accumulator manufacturing technology, particularly to a kind of method for group matching of lead-acid accumulator.
Background technology
Electric motor car power assisting car has become important running vehicle in the life of people, gradually instead of fuel oil motor
Car, has saved resource, decreases waste gas discharge, and China pays much attention to the development of Moped Scooter industry, and obtains government
Concern and support.
China since two thousand, in Moped Scooter industry most popular for lead-acid accumulator, low price,
Grade easy to maintenance although aborning heavy metal lead certain pollution is caused to environment, but lead-acid accumulator is in battery industry
In, uniquely can make the battery of electrode material recycling utilization, decrease the consumption of the energy, solve China's lead resource shortage and ask
Inscribe, realize the effective way of economic society scientific development, meet the energy-saving Economic Development Mode recycling, meet sustainable
Development strategy.With the fast development of Moped Scooter industry, drive lead-acid battery industry industry fast-developing, annual
Increasing velocity is more than 30%.In existing battery applications, in order to meet the needs on power, many for battery are composed in series
Set of cells uses, then the battery of composition set of cells will be tried one's best unanimously, and including battery rated capacity, charging/discharging voltage, in battery
Resistance, physical dimension of battery etc., in cell production process, due to being affected to give birth to by factors such as people, machine, material, method, ring, surveys
The battery of output can not possibly be completely the same, therefore will carry out combo in battery.
Domestic at present electric boosted automobile-used lead-acid accumulator producer is by 18 or 20 battery series connection using 12V battery,
16V battery carries out discharge and recharge by the series connection of 14 batteries, during final discharging voltage average 1.75V/ single lattice, artificial scale or logging
Automatically the final voltage of record battery is as battery combo foundation.The patent documentation of such as publication No. CN 103311589A is open
A kind of storage battery pressure reduction method method for group matching, first treats combo battery and is numbered；Then its final voltage and open circuit are detected
Voltage, chooses and participates in combo battery, will participate in combo battery numbering and correspond sequence with its final voltage, open-circuit voltage, then
By participating in combo battery, by first final voltage, poor, rear difference in open circuit voltage combo standard carries out combo, mark group labelled notation, finally will
Group labelled notation identical battery is moved to and is packed together.
But due to reasons such as battery production equipment precision, material behavior, manufacturing environment difference, process consistency, lead to
Battery performance is not quite identical, there are about 10%～18% cell voltage higher or low (i.e. battery capacity is higher or low),
Not in the range of technological requirement.At present, the Normal practice of cell production companies is, by this percentage of batteries in fully charged end
Afterwards, again it is connected into a road and continues discharge examination, but because each battery capacity difference is big, depth of discharge is uneven, some
Serious overdischarge, or even produce battery and scrap, the battery open circuit voltage after multiple discharge and recharge is seriously higher, and this battery is only
There is degradation to process, so that the production cost of battery is raised.
Content of the invention
The invention provides a kind of method for group matching of lead-acid accumulator, to solve in existing battery combo, voltage deviation is big
Battery in combo again, after carrying out repeated charge combo, because depth of discharge is uneven, lead to battery scrappage high
Problem.
A kind of method for group matching of lead-acid accumulator, comprises the following steps：
Step one：The capacity of the single accumulator of discharge examination, exclusion battery capacity is less than the accumulator of standard value；
Step 2：The accumulator less than 2min for the discharge time difference is divided into one group, is charged with after group storage battery series connection
Or every accumulator is individually charged；
Step 3：After completing to charge, measure the open-circuit voltage of each accumulator, and discharge time difference less than 1min and is opened
The battery that road voltage difference is less than predetermined voltage is divided into one group to complete combo.
After a combo, pressure reduction battery bigger than normal single detection battery capacity respectively, in detection process, each battery is mutual
Do not affect, not only testing result is accurate, and does not interfere with the performance of battery；After completing measurement, can be gone out unqualified with rapid screening
Battery, to prevent it from affecting the performance of other batteries in follow-up discharge and recharge；Carrying out combo charging according to testing result, will
The little battery of capacity volume variance is made into one group and carries out serial connection charge；Finally it is divided into one with reference to the close battery of open-circuit voltage and capability value
Group completes the secondary combo of battery.For the different set of cells of combo capacity, the size of the predetermined voltage that difference in open circuit voltage is less than is not
With as follows according to industry standard：Combo capacity 36V predetermined voltage is 0.02V, and combo capacity 48V predetermined voltage is 0.03V, joins
Pool-size 60V and 64V predetermined voltage are 0.04V, and combo capacity 72V and 80V predetermined voltage are 0.04V.
The accumulator of secondary combo so can improve charge efficiency with serial connection charge；Can also individually be charged,
Such that it is able to more accurately control charging current and the voltage of each battery, improve battery performance.
Using the battery of the secondary combo of the method for the present invention, only once being discharged and charging completes combo, it is to avoid electricity
Pond, after multiple discharge and recharge combo, leads to the problem that battery is scrapped because depth of discharge is uneven.
In order to improve the accuracy of discharge measuring, each battery adopt unified discharge parameter it is preferred that
During discharge examination battery capacity, control ambient temperature at 10 DEG C～40 DEG C, using electric current 0.5C2A discharges, and puts
Electricity to battery tension reaches final voltage.
In the present invention, final voltage positions 1.75/ single lattice, and modal accumulator is generally 6 lattice, i.e. single electric power storage at present
The total final voltage of Chi is 10.5V.
In order that after charging, inside battery reaction is more abundant, battery performance more stable it is preferred that
In step 3, accumulator charges after terminating standing 24h and measures open-circuit voltage again.
After recharged, open-circuit voltage raises, and when user uses, undercharge phenomenon is it is preferred that step 2
In, charging modes are：First modified constant-voltage charge 10h～14h, then carries out constant-current charge 1h～3h.First modified constant-voltage charge exists
Prevent that electric current is excessive to enable battery fully charged state simultaneously, and the constant-current charge finally carrying out the short time can carry further
High charge amount.
Preferably, the constant-voltage value of modified constant-voltage charge is 2.5V/ single lattice, and cut-off current is 0.15C2A.Store by 6 lattice
Battery calculates, and constant-voltage is 15V.
Constant-current charge electric current adopts less micro-current, makes each battery electric quantity more sufficient it is preferred that constant-current charge electric current is
0.05C2A.
C2Represent battery 2 hour rate battery capacity, unit ampere-hour, such as 20Ah (C2) battery, 0.5C2A=0.5
× 20=10A, 0.15C2A=0.15 × 20=3A, 0.05C2A=0.05 × 20=1A.
Beneficial effects of the present invention：
The method for group matching of the lead-acid accumulator of the present invention, the excessive battery of voltage difference after a combo is once discharged
With charge after complete combo, it is to avoid scrap because depth of discharge is uneven after battery repeated charge combo, reduce
The scrappage of battery, effectively can prevent from making battery open circuit voltage liter due to repeated charge with effectively save production cost simultaneously
Height, thus improve battery life it is ensured that product quality.
Specific embodiment
Embodiment 1
So that battery size is as 6-DZM-20 as a example, discharge current is 10A to the present embodiment, and battery final voltage is 10.50V；
Combo becomes 48V, the set of cells of 20Ah.The method for group matching of the lead-acid accumulator of the present embodiment comprises the following steps：
Step one：Control ambient temperature at 10 DEG C～40 DEG C, to single battery with electric current 10A discharge examination battery capacity,
Reach final voltage and be less than the battery of 120min for recording discharge time, exclusion discharge time during 10.5V；
Step 2：Divide filtering out the battery according to discharge time difference less than 2min for 36 batteries therein in step one
Group, with Battery pack series connection after be charged or single battery charge independence, group result such as Tables 1 and 2, by every Battery pack elder generation with
Constant-voltage value is 15V, cut-off current 3A charging 12h, then with constant current 1A charging 2h；
Step 3：After completing charging standing 24h, measure the open-circuit voltage of each battery, measurement result such as Tables 1 and 2, and
By discharge time difference, less than 1min and the battery less than 0.03V for the difference in open circuit voltage is divided into one group to complete combo.
First via serial connection charge battery or single battery charge independence：
Table 1
Second road serial connection charge battery or single battery charge independence：
Table 2
Combo result is as follows：
1st group：The 2nd group of 2#3#4#5#：1#6#7#8#
3rd group：The 4th group of 9#10#11#13#：12#14#16#17#
5th group：The 6th group of 15#18#19#21#：20#22#23#24#
7th group：The 8th group of 25#30#34#36#：26#27#28#29#
9th group：31#32#33#35#
Embodiment 2
So that battery size is as 6-DZM-12 as a example, discharge current is 6A to the present embodiment, and battery final voltage is 10.50V；Join
Composition 48V, the set of cells of 12Ah.The method for group matching of the lead-acid accumulator of the present embodiment comprises the following steps：
Step one：Control ambient temperature at 10 DEG C～40 DEG C, to single battery with electric current 6A discharge examination battery capacity, reach
It is less than the battery of 120min to final voltage for recording discharge time, exclusion discharge time during 10.5V；
Step 2：Divide filtering out the battery according to discharge time difference less than 2min for 18 batteries therein in step one
Group, with Battery pack series connection after be charged or single battery charge independence, group result such as Tables 1 and 2, by every Battery pack elder generation with
Constant-voltage value is 15V, cut-off current 1.8A charging 12h, then with constant current 0.6A charging 2h；
Step 3：After completing charging standing 24h, measure the open-circuit voltage of each battery, measurement result such as table 3, and will put
Electric time difference is less than 1min and the battery less than 0.03V for the difference in open circuit voltage is divided into one group to complete combo.
First group of serial connection charge battery：
Table 3
Combo result is as follows：
1st group：The 2nd group of 2#3#5#6#：7#8#9#10#
3rd group：The 4th group of 1#4#11#13#：12#14#16#17#
In sum, the method for group matching of the lead-acid accumulator of the present embodiment, pressure reduction battery bigger than normal after a combo is divided
Not single detection battery capacity, in detection process, each battery is independent of each other, and not only testing result is accurate, and does not interfere with electricity
The performance in pond；After completing measurement, underproof battery can be gone out with rapid screening, to prevent it from affecting other electricity in subsequent charge
The performance in pond；Carrying out combo charging according to testing result, battery little for capacity volume variance is being made into one group and carries out serial connection charge；?
It is divided into one group to complete the secondary combo of battery with reference to the close battery of open-circuit voltage and capability value afterwards.Method two using the present embodiment
The battery of secondary combo, battery is only once discharged and is charged and completed combo, it is to avoid battery after multiple discharge and recharge combo, by
And the problem that lead to battery scrap uneven in depth of discharge.
Claims (5)
1. a kind of method for group matching of lead-acid accumulator is it is characterised in that comprise the following steps：
Step one：The capacity of the single accumulator of discharge examination, exclusion battery capacity is less than the accumulator of standard value；
Step 2：Discharge time difference is divided into one group less than the accumulator of 2min, with being charged after group storage battery series connection or often
Accumulator is individually charged；Charging modes are：First modified constant-voltage charge 10h～14h, then carry out constant-current charge 1h～
3h；
Step 3：After completing to charge, measure the open-circuit voltage of each accumulator, and discharge time difference less than 1min and is opened a way electric
The battery that pressure reduction is less than predetermined voltage is divided into one group to complete combo.
2. method for group matching as claimed in claim 1 is it is characterised in that during discharge examination battery capacity, control environment temperature
Spend at 10 DEG C～40 DEG C, using electric current 0.5C2A discharges, and is discharged to battery tension and reaches final voltage.
3. method for group matching as claimed in claim 1 is it is characterised in that in step 3, accumulator charges after terminating standing 24h
Measure open-circuit voltage again.
4. method for group matching as claimed in claim 1 is it is characterised in that the constant-voltage value of modified constant-voltage charge is that 2.5V/ is mono-
Lattice, cut-off current is 0.15C2A.
5. method for group matching as claimed in claim 1 is it is characterised in that constant-current charge electric current is 0.05C2A.
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| CN201410298447.1A CN104103857B (en) | 2014-06-26 | 2014-06-26 | Group matching method of lead-acid storage batteries |
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| CN201410298447.1A CN104103857B (en) | 2014-06-26 | 2014-06-26 | Group matching method of lead-acid storage batteries |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538681B (en) * | 2014-12-22 | 2017-02-22 | 天能电池集团有限公司 | Formation and matching technology of lead-acid storage battery |
| CN105206883B (en) * | 2015-09-22 | 2018-02-09 | 江西新威动力能源科技有限公司 | A kind of big compounding process of battery |
| CN107123825B (en) * | 2017-03-28 | 2019-07-23 | 天能电池集团股份有限公司 | A kind of lead storage battery method for group matching |
| CN108281712A (en) * | 2017-12-26 | 2018-07-13 | 浙江天能动力能源有限公司 | A kind of automation combo technique of lead-acid accumulator |
| CN109449508B (en) * | 2018-10-09 | 2021-09-07 | 天能电池集团（安徽）有限公司 | Method for recharging residual batteries of storage battery matching set |
| CN110190342B (en) * | 2019-04-30 | 2021-10-08 | 超威电源集团有限公司 | Matching method of lead-acid storage battery |
| CN111416164B (en) * | 2020-03-05 | 2021-06-01 | 天能电池集团股份有限公司 | Storage battery container formation and matching method |
| CN113178624B (en) * | 2021-03-03 | 2022-09-20 | 安徽力普拉斯电源技术有限公司 | High-consistency matching method for power batteries of electric road vehicles |
| CN113820607A (en) * | 2021-08-12 | 2021-12-21 | 双登集团股份有限公司 | Battery high-voltage matching detection process for high-voltage scene |
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| CN103311589B (en) * | 2013-06-27 | 2015-09-09 | 浙江天能电池(江苏)有限公司 | Storage battery pressure reduction method method for group matching |
| CN103560278B (en) * | 2013-10-23 | 2015-11-25 | 超威电源有限公司 | A kind of lead acid accumulator combo method for separating |
| CN103840225B (en) * | 2014-03-27 | 2016-09-14 | 合肥国轩高科动力能源有限公司 | A kind of screening technique of lithium ion battery |
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Address after: 313100 Coal Mountain Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee after: Tianneng Battery Group Co., Ltd. Address before: 313100 Coal Mountain Industrial Park, Changxing County, Huzhou City, Zhejiang Province Patentee before: Tianneng Battery Group Co., Ltd. |