CN102344172A - Method for ultrasonically repairing lithium cobaltite material of failed lithium ion battery - Google Patents
Method for ultrasonically repairing lithium cobaltite material of failed lithium ion battery Download PDFInfo
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- CN102344172A CN102344172A CN2011103103152A CN201110310315A CN102344172A CN 102344172 A CN102344172 A CN 102344172A CN 2011103103152 A CN2011103103152 A CN 2011103103152A CN 201110310315 A CN201110310315 A CN 201110310315A CN 102344172 A CN102344172 A CN 102344172A
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- lithium
- cobalt acid
- acid lithium
- ultrasonic
- cobaltite
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
Abstract
The invention relates to a method for ultrasonically repairing a lithium cobaltite material in a failed lithium ion battery. The method specifically comprises the following steps of: (1) separating lithium cobaltite powder waste from a used and failed waste lithium ion battery by using a mechanical separation method; (2) filling the lithium cobaltite powder waste in 1-2mol/L lithium hydroxide solution and performing ultrasonic radiation under a room temperature condition for 6-12 hours; (3) cleaning and filtering ultrasonically treated mixed solution by using de-ionized water to obtain black lithium cobaltite paste; and (4) drying under an environment of 50-80 DEG C for 6-10 hours to obtain a repaired lithium cobaltite material. By adopting the ultrasonic radiation method, regeneration of the failed lithium cobaltite material is realized, and the lithium cobaltite material can be newly used as a positive material to produce a new lithium ion battery. By adopting the method, the lithium cobaltite material which is produced in the waste lithium battery after use and failure can be effectively treated; and the method has the characteristics of simple process method, strong operability, no secondary pollution and the like, and has high social benefit, economic benefit and environmental benefit.
Description
Technical field
The invention belongs to environmental protection technical field, be specifically related to a kind of method of the ultrasonic reparation of cobalt acid lithium material of disabled lithium ion cell.Be applicable to the resource recycling of using the lithium ion battery that contains cobalt acid lithium material that lost efficacy.
Background technology
Lithium ion battery has, and voltage is high, specific energy big, have extended cycle life, safety performance is good, but the little fast charging and discharging of self-discharge, operating temperature range are wide, remarkable advantages such as environmental protection relatively; Be widely used in electronic product fields such as mobile telephone, notebook computer, pick up camera, digital camera, and be expected to be used widely at aspects such as electromobile, space flight and energy storage.In the lithium ion battery that portable type electronic product uses, cobalt acid lithium is the positive electrode active materials that unique large-scale commercial applications is used at present.Cobalt, lithium metal in the cobalt acid lithium material all are valuable resource, the especially internationally recognized especially strategic materials of cobalt metal.Owing to use depleted mobile phone lithium ion battery to contain the cobalt heavy metal, like any stacking, landfill, or the mishandling serious environmental that must cause is polluted harm humans health simultaneously.
The recycling of cobalt acid lithium waste material is the environment protection method that is widely adopted at present, and it is also ripe relatively to reclaim cobalt acid lithium waste material reutilization technology.From the recycle of cobalt acid lithium the lithium cell industry, after it lost efficacy, cobalt acid lithium waste material is separated with refining; And then be back to the preparation of lithium battery anode; Whole process link is many, and relates to the repeatedly conversion of cobalt and lithium product form, and overall craft is complicated and consume energy higher.
Summary of the invention
The object of the present invention is to provide a kind of easy technological process, energy consumption is low, the method for the ultrasonic reparation of cobalt acid lithium material of the disabled lithium ion cell that environmental influence is little, and can be as the positive electrode active materials reuse again of lithium ion battery.
The method of the ultrasonic reparation of cobalt acid lithium material in a kind of disabled lithium ion cell that the present invention proposes; Adopt ultrasonic method that the cobalt acid lithium material of powder is carried out the liquid phase radiotreatment; Through filtration, washing, the dry regenerated cobalt acid lithium material that obtains, concrete steps are following:
(1) will use the lithium ion battery machinery that lost efficacy to split, obtain the cobalt acid lithium waste material in the positive electrode material;
(2) cobalt acid lithium waste material is positioned in the reactor that fills the 1-2mol/L lithium hydroxide solution, reactor is installed condensation reflux unit, and ultrasonic amplitude transformer is installed, and the horn head is immersed under the liquid level;
(3) under the room temperature condition, control ultrasonic device power is 1000 ± 2W, and ultrasonic frequency is 25 kHz, the solution in the reactor is carried out ultrasonic radiation handle, and the ultrasonic radiation time is 6 ~ 12h;
(4) solution that will pass through supersound process naturally cools to room temperature, and cooled solution is filtered, and promptly from lithium hydroxide solution, filters out cobalt acid lithium material, uses deionized water wash 3-5 time to filtering the cobalt acid lithium material that obtains;
(5) the cobalt acid lithium material that step (4) is obtained in 50-80 ℃ of environment dry 6 ~ 10 hours reclaims the cobalt acid lithium material that obtains to be back to lithium battery anode.
Among the present invention, solution stirring speed is 200 ~ 300rpm in the step (3).
Use regeneration cobalt acid lithium prepares button cell and through electrochemical property test, the loading capacity first of cobalt acid lithium material reaches 132 mAh g
-1, be reduced to 97.2% through 50 charge and discharge cycles capacity.
Beneficial effect of the present invention is: the present invention can handle the cobalt acid lithium material in the useless lithium cell that after using inefficacy, produces effectively; It is simple to have processing method; Characteristics such as workable, non-secondary pollution have good social benefit, economic benefit and environmental benefit.
Embodiment
Below in conjunction with embodiment technical scheme of the present invention is further described:
The present invention at first simply disassembles discharge to the disabled lithium ion battery of mobile phone; Adopt machine tool to separate and obtain the adherent cobalt acid of aluminium foil lithium material on one's body; Then cobalt acid lithium waste material is placed the lithium hydroxide solution of 1 ~ 2M; Through after the supersound process, the dry regenerated cobalt acid lithium material that obtains of filtration washing.The ultrasound procedure temperature is a room temperature, and the water vapour of generation is back in the reaction vessel through condensation reflux unit, and solution stirring speed is 200 ~ 300rpm.
Embodiment 1
(1) will use disabled lithium ion battery of mobile phone machinery to split, obtain the cobalt acid lithium waste material in the positive electrode material;
(2) cobalt acid lithium waste material is positioned in the 2mol/L lithium hydroxide solution reactor, reactor is settled condensation reflux unit, and ultrasonic amplitude transformer is installed, and the horn head is immersed under the liquid level;
(3) ultrasonic device power is 1000 W, and ultrasonic frequency is 25 kHz, and ultrasonic radiation is carried out at room temperature condition, behind the ultrasonic 6h, and naturally cooling;
When (4) treating the ultrasonic reactor cool to room temperature, cobalt acid lithium material and uses deionized water wash 3 times through filtering in the lithium hydroxide solution;
(5) will filter and obtain cobalt acid lithium material,, reclaim the cobalt acid lithium material that obtains to be back to lithium battery anode in 80 ℃ of environment dry 6 hours.
The experimental result that discharges and recharges of making button cell shows: the loading capacity first of cobalt acid lithium material reaches 128.0mAh g
-1, be reduced to 96.4% through 50 charge and discharge cycles capacity.
Embodiment 2
(1) will use disabled lithium ion battery of mobile phone machinery to split, obtain the cobalt acid lithium waste material in the positive electrode material;
(2) cobalt acid lithium waste material is positioned in the 1M lithium hydroxide solution reactor, reactor is settled condensation reflux unit, and ultrasonic amplitude transformer is installed, and the horn head is immersed under the liquid level;
(3) ultrasonic device power is 1000 W, and ultrasonic frequency is 25 kHz, and ultrasonic radiation is carried out at room temperature condition, behind the ultrasonic 12h, and naturally cooling;
When (4) treating the ultrasonic reactor cool to room temperature, cobalt acid lithium material and uses deionized water wash 3 times through filtering in the lithium hydroxide solution;
(5) will filter and obtain cobalt acid lithium material,, reclaim the cobalt acid lithium material that obtains to be back to lithium battery anode in 80 ℃ of environment dry 6 hours.
The experimental result that discharges and recharges of making button cell shows: the loading capacity first of cobalt acid lithium material is not less than 132 mAh g
-1, be reduced to 97.2% through 50 charge and discharge cycles capacity.
Claims (2)
1. the method for the ultrasonic reparation of the acid lithium material of the cobalt in the disabled lithium ion cell is characterized in that concrete steps are following:
(1) will use the lithium ion battery machinery that lost efficacy to split, obtain the cobalt acid lithium waste material in the positive electrode material;
(2) cobalt acid lithium waste material is positioned in the reactor that fills the 1-2mol/L lithium hydroxide solution, reactor is installed condensation reflux unit, and ultrasonic amplitude transformer is installed, and the horn head is immersed under the liquid level;
(3) under the room temperature condition, control ultrasonic device power is 1000 ± 2W, and ultrasonic frequency is 25 kHz, the solution in the reactor is carried out ultrasonic radiation handle, and the ultrasonic radiation time is 6 ~ 12h;
(4) solution that will pass through supersound process naturally cools to room temperature, and cooled solution is filtered, and promptly from lithium hydroxide solution, filters out cobalt acid lithium material, uses deionized water wash 3-5 time to filtering the cobalt acid lithium material that obtains;
(5) the cobalt acid lithium material that step (4) is obtained in 50-80 ℃ of environment dry 6 ~ 10 hours reclaims the cobalt acid lithium material that obtains to be back to lithium battery anode.
2. the method for the ultrasonic reparation of cobalt acid lithium material in a kind of disabled lithium ion cell according to claim 1 is characterized in that solution stirring speed is 200 ~ 300rpm in the step (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103103152A CN102344172B (en) | 2011-10-14 | 2011-10-14 | Method for ultrasonically repairing lithium cobaltite material of failed lithium ion battery |
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| CN2011103103152A CN102344172B (en) | 2011-10-14 | 2011-10-14 | Method for ultrasonically repairing lithium cobaltite material of failed lithium ion battery |
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| CN102344172A true CN102344172A (en) | 2012-02-08 |
| CN102344172B CN102344172B (en) | 2013-10-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105375081A (en) * | 2015-11-20 | 2016-03-02 | 安徽建筑大学 | High-voltage pulse liquid-phase discharge repair method for lithium cobalt oxide material in spent lithium battery |
| CN109904446A (en) * | 2019-02-26 | 2019-06-18 | 广东邦普循环科技有限公司 | A kind of regeneration positive electrode and preparation method thereof and the lithium ion battery comprising the regeneration positive electrode |
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| CN101871048A (en) * | 2010-06-25 | 2010-10-27 | 浙江华友钴业股份有限公司 | Method for recovering cobalt, nickel and manganese from waste lithium cells |
| CN102163760A (en) * | 2011-03-17 | 2011-08-24 | 江西格林美资源循环有限公司 | Method for separating and recovering lithium and cobalt from positive electrode material of lithium battery |
| CN102199705A (en) * | 2011-05-06 | 2011-09-28 | 河北工程大学 | Method for recovering lithium metal from used batteries |
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2011
- 2011-10-14 CN CN2011103103152A patent/CN102344172B/en not_active Expired - Fee Related
Patent Citations (4)
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| CN1453897A (en) * | 2003-05-29 | 2003-11-05 | 南开大学 | Recovery method for leftover and residue of positive electrode of lithium ion battery |
| CN101871048A (en) * | 2010-06-25 | 2010-10-27 | 浙江华友钴业股份有限公司 | Method for recovering cobalt, nickel and manganese from waste lithium cells |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375081A (en) * | 2015-11-20 | 2016-03-02 | 安徽建筑大学 | High-voltage pulse liquid-phase discharge repair method for lithium cobalt oxide material in spent lithium battery |
| CN109904446A (en) * | 2019-02-26 | 2019-06-18 | 广东邦普循环科技有限公司 | A kind of regeneration positive electrode and preparation method thereof and the lithium ion battery comprising the regeneration positive electrode |
| CN109904446B (en) * | 2019-02-26 | 2022-05-17 | 广东邦普循环科技有限公司 | Regenerated positive electrode material, preparation method thereof and lithium ion battery containing regenerated positive electrode material |
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| CN102344172B (en) | 2013-10-16 |
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