CN105811031A - Repairing method for battery with slightly-damaged diaphragm - Google Patents
Repairing method for battery with slightly-damaged diaphragm Download PDFInfo
- Publication number
- CN105811031A CN105811031A CN201610317606.7A CN201610317606A CN105811031A CN 105811031 A CN105811031 A CN 105811031A CN 201610317606 A CN201610317606 A CN 201610317606A CN 105811031 A CN105811031 A CN 105811031A
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- China
- Prior art keywords
- battery
- damage
- micro
- resistance value
- short circuit
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Classifications
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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
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from 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
- 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
Abstract
The invention discloses a repairing method for a battery with a slightly-damaged diaphragm. the insulation resistance value of a battery which is welded and not filled with an electrolyte is tested by a direct current dielectric strength tester; a slightly-damaged short-circuit battery with the insulation resistance value of 0.1-1 teraohm is selected; charging repairing for the battery is carried out by pulse current; the insulation resistance value of the repaired slightly-damaged short-circuit battery is tested again; and if the insulation resistance value is 55-200 teraohm, the battery is a qualified battery. According to the method, the burrs and fine particles on the surface of the diaphragm are burnt and removed, so that the damaged part of the diaphragm is restored; therefore, the insulation resistance of the battery is greatly improved; and the utilization ratio of the battery is improved.
Description
Technical field
The present invention relates to technical field of lithium ion, be specifically related to the restorative procedure of a kind of barrier film micro-damage battery.
Background technology
Along with the development of electrokinetic cell, the security requirement for battery is increasingly stricter, and battery occurs during making that the ratio of short circuit remains high, and always annoyings a difficult problem for battery production enterprise.On the one hand for the requirement of safety, short circuit battery must be scrapped, and the most substantial amounts of short circuit battery is scrapped and adds the cost of enterprise.
The reason causing battery short circuit is a lot, mainly due to touching the foreign material such as burr, fine conductive granule on barrier film, causes barrier film corresponding site to there occurs micro-damage；Under the most conventional high-tension detection, micro-damage position creates shelf depreciation, thus the short circuit phenomenon of detection process occurs.In short circuit battery after detection, some battery diaphragm is thoroughly punctured under high voltages, it is impossible to use；But still some battery, the impurity such as the burr at its barrier film micro-damage position can be cauterized under certain electric current and be removed, " focus " that make barrier film corresponding site is eliminated, and then the insulating resistance value of battery is increased, barrier film does not puncture simultaneously, for this percentage of batteries, then can demote use, and then the utilization rate of increase product, the present invention, by short circuit battery being applied certain pulse voltage in certain time, reaches the effect repairing micro-damage battery.
Summary of the invention
The technical problem to be solved in the present invention is to provide the restorative procedure of a kind of barrier film micro-damage battery so that it is insulation resistance returns to a high level of comparison, improves the utilization rate of battery.
Technical scheme is as follows:
A kind of restorative procedure of barrier film micro-damage battery, it comprises the following steps:
(1) not yet carry out the battery DC break down voltage tester of injecting electrolytic solution test its insulating resistance value to having welded, and select the micro-damage short circuit battery that insulating resistance value is 0.1-1 megaohm；
(2) electric current that micro-damage short circuit battery is with pulsewidth as 100-350us, pulse voltage is as 100-500V selected is charged so that it is burr and the fine particle of membrane surface are burnt and removed, reaches micro-damage short circuit battery is repaired；
(3) insulating resistance value of the micro-damage short circuit battery repaired with the test of DC break down voltage tester again, if its insulating resistance value is 55-200 megaohm, is then spec battery.
Scheme further, the test voltage of the DC break down voltage tester in described step (1) is 3-10V, the testing time is 0.5-1s.
In scheme, described step (2), the time of charging is 10-50ms further.
Scheme further, the test voltage of the DC break down voltage tester in described step (3) is 50-250V, the testing time is 1-3s.
The invention has the beneficial effects as follows: the present invention is by the reparation to barrier film micro-damage battery, the insulation resistance making partial short circuit battery returns to a high level of comparison, the use requirement under varying environment can be met, and then improve the utilization rate of battery, add economic benefit, originally show the battery of low insulation resistance (0.1-1 megaohm) at lower voltages, through repairing, high-tension impact can be withstood, demonstrate the higher insulation resistance under high voltage simultaneously.
Accompanying drawing explanation
Fig. 1 is that barrier film micro-damage battery is repaired forward and backward insulating resistance value comparison diagram by embodiment 1.
Detailed description of the invention
Below in conjunction with subordinate list, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Embodiment 1
A kind of restorative procedure of barrier film micro-damage battery, step is as follows:
1) use DC break down voltage tester with in 3V voltage, 0.5s, the battery being complete welding and not yet carrying out injecting electrolytic solution is tested, selects the micro-damage short circuit battery of insulating resistance value 0.1-1 megaohm；
2) micro-damage short circuit battery is charged in 10ms with the 100V pulse voltage of pulsewidth 100us so that it is burr and the fine particle of membrane surface are burnt and removed, and repair it；
3) with DC break down voltage tester the micro-damage short circuit battery repaired is tested in 50V voltage, 1s, if its insulating resistance value is more than 55 megaohms, then it is spec battery after repairing；
As it is shown in figure 1, forward and backward insulating resistance value comparison diagram repaired to barrier film micro-damage battery, in figure, abscissa is the battery coding of different battery, and vertical coordinate is insulating resistance value.As seen from Figure 1 after the present invention repairs, the insulation resistance of same battery has had and has been obviously improved, such that it is able to withstand the battery that high-tension impact becomes qualified.
Embodiment 2
A kind of restorative procedure of barrier film micro-damage battery, step is as follows:
1) use DC break down voltage tester not yet to carry out the battery of injecting electrolytic solution and test being complete welding in 10V voltage, 0.5s, select the micro-damage short circuit battery of insulating resistance value 0.1 megaohm-1 megaohm；
2) micro-damage short circuit battery is charged in 50ms with the 500V pulse voltage of pulsewidth 350us so that it is burr and the fine particle of membrane surface are burnt and removed, and repair it；
3) again with DC break down voltage tester the micro-damage short circuit battery repaired is tested in 250V voltage, 3s, if its insulating resistance value be more than 200 megaohms for spec battery.
Embodiment 3
A kind of restorative procedure of barrier film micro-damage battery, step is as follows:
1) use DC break down voltage tester not yet to carry out the battery of injecting electrolytic solution and test being complete welding under 9V voltage, in 1s, select the micro-damage short circuit battery of insulating resistance value 0.1-1 megaohm；
2) micro-damage short circuit battery is charged in 20ms with the 300V pulse voltage of pulsewidth 200us so that it is burr and the fine particle of membrane surface are burnt and removed, and repair it；
3) with DC break down voltage tester the micro-damage short circuit battery repaired is tested in 100V, voltage, 2s, if its insulating resistance value be more than 100 megaohms for spec battery.
It should be noted that, the invention is simply illustrated by above example.The present invention is made various amendment by those skilled in the art, without departing from the intended spirit of the present invention, all at the claims of the present invention.
Claims (4)
1. the restorative procedure of a barrier film micro-damage battery, it is characterised in that: comprise the following steps:
(1) not yet carry out the battery DC break down voltage tester of injecting electrolytic solution test its insulating resistance value to having welded, and select the micro-damage short circuit battery that insulating resistance value is 0.1-1 megaohm；
(2) electric current that micro-damage short circuit battery is with pulsewidth as 100-350us, pulse voltage is as 100-500V selected is charged so that it is burr and the fine particle of membrane surface are burnt and removed, reaches micro-damage short circuit battery is repaired；
(3) insulating resistance value of the micro-damage short circuit battery repaired with the test of DC break down voltage tester again, if its insulating resistance value is 55-200 megaohm, is then spec battery.
The restorative procedure of a kind of barrier film micro-damage battery the most according to claim 1, it is characterised in that: the test voltage of the DC break down voltage tester in described step (1) is 3-10V, the testing time is 0.5-1s.
The restorative procedure of a kind of barrier film micro-damage battery the most according to claim 1, it is characterised in that: in described step (2), the time of charging is 10-50ms.
The restorative procedure of a kind of barrier film micro-damage battery the most according to claim 1, it is characterised in that: the test voltage of the DC break down voltage tester in described step (3) is 50-250V, the testing time is 1-3s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610317606.7A CN105811031A (en) | 2016-05-13 | 2016-05-13 | Repairing method for battery with slightly-damaged diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610317606.7A CN105811031A (en) | 2016-05-13 | 2016-05-13 | Repairing method for battery with slightly-damaged diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105811031A true CN105811031A (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610317606.7A Pending CN105811031A (en) | 2016-05-13 | 2016-05-13 | Repairing method for battery with slightly-damaged diaphragm |
Country Status (1)
| Country | Link |
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| CN (1) | CN105811031A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848446A (en) * | 2016-12-28 | 2017-06-13 | 深圳天珑无线科技有限公司 | A kind of method and device for detecting lithium battery micro-short circuit point |
| CN108832209A (en) * | 2018-06-27 | 2018-11-16 | 淄博国利新电源科技有限公司 | The simple maintaining method of the capacitive nickel-metal hydride battery of fast charge in railroad embankment vehicle |
| CN111766480A (en) * | 2020-07-03 | 2020-10-13 | 天能帅福得能源股份有限公司 | Method for detecting poor bottom welding of circular lithium ion battery |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210983A (en) * | 1997-09-11 | 1999-03-17 | 电子工业部第十八研究所 | Quick screening classifying and short circuit repairing device for battery |
| JPH11135145A (en) * | 1997-10-30 | 1999-05-21 | Toshiba Battery Co Ltd | Method for reducing short-circuit failure rate of alkaline storage battery |
| JP2007035288A (en) * | 2005-07-22 | 2007-02-08 | Furukawa Battery Co Ltd:The | Inspection method of lead accumulator |
| CN101136486A (en) * | 2007-08-15 | 2008-03-05 | 湖南神舟科技股份有限公司 | Method for performing short circuit detection and renovation to non-charge dry battery pack |
| CN101188322A (en) * | 2007-10-15 | 2008-05-28 | 春兰(集团)公司 | A repair method for self-discharging unqualified battery |
| CN201623512U (en) * | 2010-01-26 | 2010-11-03 | 深圳市倍特力电池有限公司 | Battery micro-short circuit repair device |
-
2016
- 2016-05-13 CN CN201610317606.7A patent/CN105811031A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1210983A (en) * | 1997-09-11 | 1999-03-17 | 电子工业部第十八研究所 | Quick screening classifying and short circuit repairing device for battery |
| JPH11135145A (en) * | 1997-10-30 | 1999-05-21 | Toshiba Battery Co Ltd | Method for reducing short-circuit failure rate of alkaline storage battery |
| JP2007035288A (en) * | 2005-07-22 | 2007-02-08 | Furukawa Battery Co Ltd:The | Inspection method of lead accumulator |
| CN101136486A (en) * | 2007-08-15 | 2008-03-05 | 湖南神舟科技股份有限公司 | Method for performing short circuit detection and renovation to non-charge dry battery pack |
| CN101188322A (en) * | 2007-10-15 | 2008-05-28 | 春兰(集团)公司 | A repair method for self-discharging unqualified battery |
| CN201623512U (en) * | 2010-01-26 | 2010-11-03 | 深圳市倍特力电池有限公司 | Battery micro-short circuit repair device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848446A (en) * | 2016-12-28 | 2017-06-13 | 深圳天珑无线科技有限公司 | A kind of method and device for detecting lithium battery micro-short circuit point |
| CN108832209A (en) * | 2018-06-27 | 2018-11-16 | 淄博国利新电源科技有限公司 | The simple maintaining method of the capacitive nickel-metal hydride battery of fast charge in railroad embankment vehicle |
| CN111766480A (en) * | 2020-07-03 | 2020-10-13 | 天能帅福得能源股份有限公司 | Method for detecting poor bottom welding of circular lithium ion battery |
| CN111766480B (en) * | 2020-07-03 | 2023-02-28 | 天能帅福得能源股份有限公司 | Method for detecting poor bottom welding of circular lithium ion battery |
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Application publication date: 20160727 |