CN105655657A - Grouping method of serial batteries - Google Patents
Grouping method of serial batteries Download PDFInfo
- Publication number
- CN105655657A CN105655657A CN201510578881.XA CN201510578881A CN105655657A CN 105655657 A CN105655657 A CN 105655657A CN 201510578881 A CN201510578881 A CN 201510578881A CN 105655657 A CN105655657 A CN 105655657A
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- Prior art keywords
- battery
- voltage
- combo
- discharge
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- 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
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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)
Abstract
The invention discloses a grouping method of serial batteries. The method comprises the following steps: (1) after battery formation and acid extraction, fully charging batteries and then discharging batteries for the first time, wherein the voltage of single battery is V1n after discharging; (2) charging the batteries for a second time, wherein the voltage of single battery is V2n after discharging; (3) charging the batteries for a third time, after the batteries are fully charged, and allowing the batteries to stand still for a while, wherein the open circuit voltage of the batteries is V3n; (4) carrying out grouping according to the principle that the discharge voltage difference of one battery is not more than 0.4 V (V1n-V2n=<0.4V); (5) finally determining the grouping according to the principle that the open circuit voltage (V3n) of the same group is less than 40 mV. By testing the discharging and charging performance of battery, the factors that influence the battery uniformity can be determined, and the uniformity of battery grouping can be improved therefore.
Description
Technical field
The invention belongs to lead acid cell field, more specifically, the present invention relates to a kind of method of battery combo of contacting.
Background technology
Lead acid cell major part is all use after many serial battery, in order to ensure the consistence of battery performance, prior art adopts pole plate weight counterweight mostly, quantitative acid dosing, cell container, leave standstill the foundation of the parameters such as voltage as combo, but, grid deviation of weight, lead alloy composition, cream grid interface cohesion situation, the heavy moisture content of pole plate, pole plate active material additive degree of scatter, when the deviation of the oneself factors such as dividing plate characteristic causes battery to charge, there is deviation in temperature, cause the sour density in battery inconsistent, wherein there is certain randomness in cell container, can only as with reference to data, after battery standing, owing to the difference of battery pole plates surface finish causes battery assembling pressure different, the penetrating power of acid is different, battery electrolyte layering, Density inhomogeneity, also there is error in voltage, and the combo parameter of prior art is all difficult to accurately evaluate the accuracy of combo, it is difficult to ensure every battery with two side terminals in a Battery pack.
Summary of the invention
The method of the series winding battery combo of every battery with two side terminals that technical problem to be solved by this invention is to provide in a kind of guarantee one Battery pack.
In order to realize above-mentioned purpose, the technical scheme that the present invention takes is: the method for a kind of battery combo of contacting disclosed by the invention, comprises the steps:
(1) Battery formation is complete take out acid after charge completely, then discharge first, the voltage V1n at the end of single battery discharge;
(2) then two chargings are carried out to battery, the voltage V2n at the end of single battery discharge;
(3) battery carries out third time charging, and charging complete, then leaves standstill, battery open circuit voltage V3n;
(4) voltage difference of same battery twice electric discharge is less than the combo of the carrying out first round of 0.4V;
(5) it is less than 40mv as finally confirming combo by with group open circuit voltage V3n voltage difference again.
The method of a kind of battery combo of contacting disclosed by the invention, battery discharges with Cn current discharge first, and wherein Cn refers to the capacity by electric discharge in n hour, Cn(capacity)/n(the time)=In(electric current); Battery for different model has different concrete numerical value.
The method of a kind of battery combo of contacting disclosed by the invention, the voltage V1n��10.5v at the end of electric discharge.
The method of a kind of battery combo of contacting disclosed by the invention, battery carries out two chargings with Cn current charges, and the duration of charging is 2h, and then discharges, with Cn current discharge.
The method of a kind of battery combo of contacting disclosed by the invention, the voltage V2n��10.5V at the end of electric discharge.
The method of a kind of battery combo of contacting disclosed by the invention, the time left standstill after third time charging complete is 24 hours.
The method of a kind of battery combo of contacting disclosed by the invention, comprises the steps:
(1) Battery formation is complete take out acid after charge completely, then discharge first, the voltage V1n at the end of single battery discharge;
(2) then two chargings are carried out to battery, the voltage V2n at the end of single battery discharge;
(3) battery carries out third time charging, and charging complete, then leaves standstill, battery open circuit voltage V3n;
(4) the voltage difference V1n-V2n��0.4V of same battery twice electric discharge carry out combo;
(5) it is less than 40mv as finally confirming combo by with group open circuit voltage V3n voltage difference again, wherein, battery discharges with Cn current discharge first to average voltage 10.5v, battery discharges with Cn current discharge first, and wherein Cn refers to the capacity by electric discharge in n hour, Cn(capacity)/n(the time)=In(electric current), battery for different model has different concrete numerical value, battery carries out two chargings with Cn current charges, and the duration of charging is 2h, and then discharges, with Cn current discharge to average voltage 10.5V, the time left standstill after third time charging complete is 24 hours, adopt technical scheme provided by the invention, combine lead acid accumulator plate grid deviation of weight, lead alloy composition, cream grid interface cohesion situation, the heavy moisture content of pole plate, pole plate active material additive degree of scatter, when the parameters such as dividing plate characteristic cause battery to charge, there is deviation in temperature, and then the following parameter occurred comprises the sour density in battery, cell container, leave standstill the deviation of voltage etc., bearing reaction is in the difference of battery charge acceptance and discharge capability, the present invention investigates the factor affecting batteryuniformity by the test of battery charging and discharging ability, thus improve the consistence of battery combo, the present invention is when investigating the difference of battery charge acceptance and discharge capability, adopt repeatedly repeated test, to overcome the randomness that test process may exist, the time left standstill after third time charging complete is 24 hours, investigate the stability of battery charge acceptance and discharge capability further, the mode of this kind of integrated survey, ensure objectivity and the accuracy of data.
Below with reference to embodiment, the present invention is described in detail.
Embodiment
Below by the description to embodiment, to the specific embodiment of the present invention as the effect of the mutual position between the shape of involved each component, structure, each several part and the relation of connection, each several part and principle of work, manufacturing process and operation using method etc., it is described in further detail, to help the technician of this area that invention design, the technical scheme of the present invention are had more complete, accurate and deep understanding.
The method of a kind of battery combo of contacting of the present invention, comprises the steps:
(1) Battery formation is complete take out acid after charge completely, then discharge first, the voltage V1n at the end of single battery discharge;
(2) then two chargings are carried out to battery, the voltage V2n at the end of single battery discharge;
(3) battery carries out third time charging, and charging complete, then leaves standstill, battery open circuit voltage V3n;
(4) voltage difference of same battery twice electric discharge is less than the combo of the carrying out first round of 0.4V;
(5) it is less than 40mv as finally confirming combo by with group open circuit voltage V3n voltage difference again.
Take out acid after one group storage battery or finished product Battery formation, completely after charging, with Cn current discharge to average voltage 10.5v, record the voltage V1n at the end of each battery discharge in this group respectively simultaneously; Then with Cn current charges 2h, and then with Cn current discharge, the voltage V2n at the end of each battery discharge in this group is again recorded respectively; The battery of the voltage difference V1n-V2n of twice electric discharge��0.4V, 24h is left standstill after charging completely, battery open circuit voltage V3n is measured with volt ohm-milliammeter, sort by first time capacity sparking voltage V1n, first time combo is carried out from high to low by voltage, first time does not complete combo, then is less than 40mv as finally confirming combo by with group open circuit voltage V3n voltage difference; Contrasting voltage V1n and V2n of twice electric discharge, the battery being greater than 0.4V with a cell voltage difference is directly selected and the operation of the charging combo of the next batch that circulates; After above-mentioned combo, still can not meet combo condition, scrap process.
Embodiment 1The battery of model 6-EVF-100, Cn=100, n=3 hour, loading capacity is 100Ah, such method for group matching be with C3 electric discharge, loading capacity is 33.33A, battery first with 33.33A current discharge to average voltage 10.5v, again with 33.33A current charges 2 hours, then with 33.33A current discharge to average voltage 10.5v; V1n-V2n��0.4V, it is possible to carry out combo.
Embodiment 2Model DZM battery, Cn=100, n=2, such method for group matching is that loading capacity is 10A with C2 electric discharge, battery first with 10A current discharge to average voltage 10.5v, then with 10 current charges 2 hours, then with 10 current discharges to average voltage 10.5v; V1n-V2n��0.4V, it is possible to carry out combo.
Adopt technical scheme provided by the invention, combine lead acid accumulator plate grid deviation of weight, lead alloy composition, cream grid interface cohesion situation, the heavy moisture content of pole plate, pole plate active material additive degree of scatter, when the parameters such as dividing plate characteristic cause battery to charge, there is deviation in temperature, and then the following parameter occurred comprises the sour density in battery, cell container, leave standstill the deviation of voltage etc., bearing reaction is in the difference of battery charge acceptance and discharge capability, the present invention investigates the factor affecting batteryuniformity by the test of battery charging and discharging ability, thus improve the consistence of battery combo, the present invention is when investigating the difference of battery charge acceptance and discharge capability, adopt repeatedly repeated test, to overcome the randomness that test process may exist, the time left standstill after third time charging complete is 24 hours, investigate the stability of battery charge acceptance and discharge capability further, the mode of this kind of integrated survey, ensure objectivity and the accuracy of data.
Above in conjunction with embodiment to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that the design of the method for the present invention carries out with technical scheme; or without improving, the design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention.
Claims (6)
1. the method for battery combo of contacting, it is characterised in that: comprise the steps:
Battery formation is complete take out acid after charge completely, then discharge first, the voltage V1n at the end of single battery discharge;
Then two chargings are carried out to battery, the voltage V2n at the end of single battery discharge;
Battery carries out third time charging, and charging complete, then leaves standstill, and measures battery open circuit voltage V3n;
The voltage difference of same battery twice electric discharge is less than the combo of the carrying out first round of 0.4V;
It is less than 40mv as finally confirming combo again by with group open circuit voltage V3n voltage difference.
2. according to the method for a kind of battery combo of contacting according to claim 1, it is characterised in that: described battery discharges with Cn current discharge first, and wherein Cn presses the capacity of electric discharge in n hour, Cn(capacity)/n(the time)=In(electric current).
3. according to the method for a kind of battery combo of contacting according to claim 1, it is characterised in that: the voltage V1n��10.5v at the end of described electric discharge.
4. according to the method for a kind of battery combo of contacting according to claim 1, it is characterised in that: described battery carries out two chargings with Cn current charges, and the duration of charging is 2h, and then discharges, with Cn current discharge.
5. according to the method for a kind of battery combo of contacting according to claim 1, it is characterised in that: the voltage V2n��10.5V at the end of described electric discharge.
6. according to the method for a kind of battery combo of contacting according to claim 1, it is characterised in that: the time left standstill after described third time charging complete is 24 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578881.XA CN105655657A (en) | 2015-09-11 | 2015-09-11 | Grouping method of serial batteries |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510578881.XA CN105655657A (en) | 2015-09-11 | 2015-09-11 | Grouping method of serial batteries |
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| CN105655657A true CN105655657A (en) | 2016-06-08 |
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| CN201510578881.XA Pending CN105655657A (en) | 2015-09-11 | 2015-09-11 | Grouping method of serial batteries |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448181A (en) * | 2018-04-11 | 2018-08-24 | 广东力科新能源有限公司 | A kind of multi-series and parallel Li-ion batteries piles dynamic DC impedance method for group matching and system |
| CN109696633A (en) * | 2017-10-19 | 2019-04-30 | 江苏金阳光新能源科技有限公司 | A kind of method of quick inspection lithium ion battery circulation consistency |
| CN110444826A (en) * | 2019-07-05 | 2019-11-12 | 联动天翼新能源有限公司 | The forming and capacity dividing method of lithium battery |
| CN111564669A (en) * | 2020-04-26 | 2020-08-21 | 天能电池集团股份有限公司 | Lead storage battery matching method based on internal formation process |
| CN114472229A (en) * | 2022-02-25 | 2022-05-13 | 骆驼集团武汉光谷研发中心有限公司 | Battery cell consistency screening method and system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101944638A (en) * | 2010-09-08 | 2011-01-12 | 奇瑞汽车股份有限公司 | Manufacturing method of lithium-ion battery pack used for electric automobile |
| CN104241703A (en) * | 2014-07-10 | 2014-12-24 | 超威电源有限公司 | Matching method of lead-acid storage battery for electric bicycle |
-
2015
- 2015-09-11 CN CN201510578881.XA patent/CN105655657A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944638A (en) * | 2010-09-08 | 2011-01-12 | 奇瑞汽车股份有限公司 | Manufacturing method of lithium-ion battery pack used for electric automobile |
| CN104241703A (en) * | 2014-07-10 | 2014-12-24 | 超威电源有限公司 | Matching method of lead-acid storage battery for electric bicycle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109696633A (en) * | 2017-10-19 | 2019-04-30 | 江苏金阳光新能源科技有限公司 | A kind of method of quick inspection lithium ion battery circulation consistency |
| CN108448181A (en) * | 2018-04-11 | 2018-08-24 | 广东力科新能源有限公司 | A kind of multi-series and parallel Li-ion batteries piles dynamic DC impedance method for group matching and system |
| CN110444826A (en) * | 2019-07-05 | 2019-11-12 | 联动天翼新能源有限公司 | The forming and capacity dividing method of lithium battery |
| CN110444826B (en) * | 2019-07-05 | 2021-09-10 | 联动天翼新能源有限公司 | Formation and capacity grading method for lithium battery |
| CN111564669A (en) * | 2020-04-26 | 2020-08-21 | 天能电池集团股份有限公司 | Lead storage battery matching method based on internal formation process |
| CN114472229A (en) * | 2022-02-25 | 2022-05-13 | 骆驼集团武汉光谷研发中心有限公司 | Battery cell consistency screening method and system |
| CN114472229B (en) * | 2022-02-25 | 2023-12-08 | 骆驼集团武汉光谷研发中心有限公司 | Battery cell consistency screening method and system |
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Application publication date: 20160608 |
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