CN105529504A - Method for repairing lithium ion battery with undesirable shell voltage - Google Patents
Method for repairing lithium ion battery with undesirable shell voltage Download PDFInfo
- Publication number
- CN105529504A CN105529504A CN201610120538.5A CN201610120538A CN105529504A CN 105529504 A CN105529504 A CN 105529504A CN 201610120538 A CN201610120538 A CN 201610120538A CN 105529504 A CN105529504 A CN 105529504A
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- CN
- China
- Prior art keywords
- lithium ion
- voltage
- ion battery
- shell
- restorative procedure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- 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 provides a method for repairing a lithium ion battery with undesirable shell voltage. Aiming at the lithium ion battery with undesirable shell voltage, an anode of the lithium ion battery is connected with a shell by using a lead, the lead is removed after shelving for certain time, or voltage is applied between a cathode of the lithium ion battery and the shell, and removed after shelving for certain time. By using the method, regeneration of a passivation film on the inner surface of the shell can be realized, the problem of undesirable shell voltage is solved fundamentally, and repairing success rate is up to higher than 85%; the method is simple to operate and low in cost, the number of scrapped lithium ion batteries is reduced, and using efficiency of resources and energy resources is improved.
Description
Technical field
The present invention relates to the recovery and reuse technology field of scrap lithium ion battery, specifically a kind of restorative procedure of shell bad voltage lithium ion battery.
Background technology
Along with increasingly sharpening of environmental pollution, New Energy Industry more and more receives the concern of people.Lithium ion battery is as the important component part of electric motor car, and its performance will directly affect the useful life of electric motor car, thus also result in and pays close attention to widely.The lithium ion battery with metal shell has perfect heat-dissipating, mechanical strength advantages of higher, thus receives pursuing of numerous Li electricity production firm.But at inside battery, sometimes due to production process, both positive and negative polarity directly may contact with metal shell, can destroy original passivating film under certain conditions, and then causes the inefficacy of battery.
In lithium ion battery actual production process, after cell package, usually need to carry out shell voltage tester to battery, shell bad voltage, the battery that there is Corrosion Potential are picked out.Research finds, between the both positive and negative polarity of this part battery, voltage is normal, and high rate performance, cycle performance are normal, are only shell bad voltages.Therefore, be necessary to design a kind of restorative procedure for shell bad voltage.
Summary of the invention
The object of the present invention is to provide a kind of restorative procedure of shell bad voltage lithium ion battery, reduce the quantity of scrap lithium ion battery, improve the service efficiency of resource and the energy.
Technical scheme of the present invention is:
A kind of restorative procedure of shell bad voltage lithium ion battery, for the lithium ion battery of shell bad voltage, with wire, its positive pole is connected with housing, wire is removed after the shelving of certain hour, or between its negative pole and housing, apply a voltage, after the shelving of certain hour, remove the voltage of applying.
The restorative procedure of described shell bad voltage lithium ion battery, described certain hour is 1 ~ 24h.
The restorative procedure of described shell bad voltage lithium ion battery, the voltage of described applying is more than 3.0V.
The restorative procedure of described shell bad voltage lithium ion battery, utilization can be held the modular cartridge of some lithium ion batteries simultaneously and it be fixed with the cover plate of some wires, carries out batch reparation to the lithium ion battery of some shell bad voltages.
Beneficial effect of the present invention is:
As shown from the above technical solution, the present invention is by be connected the positive pole of the lithium ion battery of shell bad voltage with housing with wire or to apply a voltage between negative pole and housing, shell inner surface passivating film can be made to live again, fundamentally solve the problem of shell bad voltage, repair success rate and reach more than 85%, simple to operate, cost is low, decrease the quantity of scrap lithium ion battery, improve the service efficiency of resource and the energy.
Accompanying drawing explanation
Fig. 1 is the schematic diagram adopting method of the present invention to repair;
Fig. 2 is the schematic diagram adopting method of the present invention batch to repair;
Fig. 3 is that in embodiment 1, experimental cell repairs front and rear casing voltage-contrast figure;
Fig. 4 is that in embodiment 2, experimental cell repairs front and rear casing voltage-contrast figure.
Embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of restorative procedure of shell bad voltage lithium ion battery, for the lithium ion battery 0 of shell bad voltage, its positive pole 2 is connected with housing 1 (being equivalent between negative pole 3 and housing 1, apply a voltage) by binding post 5 with wire 4, wire 4 is removed after shelving certain hour, can reparation be completed, the battery after reparation through leaving standstill 30 days, electric discharge recharge operation after, its shell voltage is still normal.
As shown in Figure 2, utilize the modular cartridge 6 that simultaneously can hold some lithium ion batteries 0 and the cover plate 7 it being fixed with some wires 4, batch reparation is carried out to the lithium ion battery 0 of some shell bad voltages.
Embodiment 1: its positive pole, as experimental cell, is connected with housing with wire by the lithium ion battery getting 6 shell bad voltages, removes wire after shelving 12 hours, and then leave standstill after 44 hours with the voltage between universal instrument measurement negative pole and housing.Before repairing, the results of comparison of initial shell voltage and reparation back cover voltage as shown in Figure 3.
Experimental result shows, experimental cell is after repairing, and shell voltage all returns to more than 1.0V, and after electric discharge recharges, shell voltage is all at more than 2.0V.
Embodiment 2: its positive pole, as experimental cell, is connected with housing with wire by the lithium ion battery getting 28 shell bad voltages, removes wire after shelving 24 hours, and then leave standstill after 24 hours with the voltage between universal instrument measurement negative pole and housing.Before repairing, the results of comparison of initial shell voltage and reparation back cover voltage as shown in Figure 4.
Experimental result shows, the experimental cell of 85% is after repairing, and shell voltage resume, to more than 1.0V, leave standstill 7 days back cover voltage still at more than 1.0V, and the shell voltage of Most experiments battery is in rising trend.
The above execution mode is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection range that claims of the present invention determine.
Claims (4)
1. the restorative procedure of a shell bad voltage lithium ion battery, it is characterized in that: for the lithium ion battery of shell bad voltage, with wire, its positive pole is connected with housing, wire is removed after the shelving of certain hour, or between its negative pole and housing, apply a voltage, after the shelving of certain hour, remove the voltage of applying.
2. the restorative procedure of shell bad voltage lithium ion battery according to claim 1, is characterized in that: described certain hour is 1 ~ 24h.
3. the restorative procedure of shell bad voltage lithium ion battery according to claim 1, is characterized in that: the voltage of described applying is more than 3.0V.
4. the restorative procedure of shell bad voltage lithium ion battery according to claim 1, it is characterized in that: utilization can be held the modular cartridge of some lithium ion batteries simultaneously and it be fixed with the cover plate of some wires, carries out batch reparation to the lithium ion battery of some shell bad voltages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610120538.5A CN105529504A (en) | 2016-03-03 | 2016-03-03 | Method for repairing lithium ion battery with undesirable shell voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610120538.5A CN105529504A (en) | 2016-03-03 | 2016-03-03 | Method for repairing lithium ion battery with undesirable shell voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105529504A true CN105529504A (en) | 2016-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610120538.5A Pending CN105529504A (en) | 2016-03-03 | 2016-03-03 | Method for repairing lithium ion battery with undesirable shell voltage |
Country Status (1)
| Country | Link |
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| CN (1) | CN105529504A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579295A (en) * | 2017-08-17 | 2018-01-12 | 江苏春兰清洁能源研究院有限公司 | A kind of negative pole is to the restorative procedure of shell A-battery and its structure of prosthetic device |
| CN112242572A (en) * | 2019-07-16 | 2021-01-19 | 深圳市拓邦锂电池有限公司 | Voltage boosting method for cathode and shell of lithium ion battery with square aluminum shell |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567474A (en) * | 2008-04-23 | 2009-10-28 | 张永祥 | Method for performing batch repair of waste lithium ion battery of mobile telephone |
| CN201994346U (en) * | 2010-12-10 | 2011-09-28 | 东莞新能源科技有限公司 | Power battery metal housing |
| JP2014182970A (en) * | 2013-03-21 | 2014-09-29 | Automotive Energy Supply Corp | Abnormality detection device for battery and abnormality detection method |
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2016
- 2016-03-03 CN CN201610120538.5A patent/CN105529504A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567474A (en) * | 2008-04-23 | 2009-10-28 | 张永祥 | Method for performing batch repair of waste lithium ion battery of mobile telephone |
| CN201994346U (en) * | 2010-12-10 | 2011-09-28 | 东莞新能源科技有限公司 | Power battery metal housing |
| JP2014182970A (en) * | 2013-03-21 | 2014-09-29 | Automotive Energy Supply Corp | Abnormality detection device for battery and abnormality detection method |
Non-Patent Citations (2)
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| "《CP600压水堆核电厂腐蚀防护》" * |
| 张娜等: "锂离子动力电池铝外壳的腐蚀", 《腐蚀与防护》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579295A (en) * | 2017-08-17 | 2018-01-12 | 江苏春兰清洁能源研究院有限公司 | A kind of negative pole is to the restorative procedure of shell A-battery and its structure of prosthetic device |
| CN112242572A (en) * | 2019-07-16 | 2021-01-19 | 深圳市拓邦锂电池有限公司 | Voltage boosting method for cathode and shell of lithium ion battery with square aluminum shell |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160427 |