CN101071893A - Waste lithium ion cell anode waste cobalt-lithium membrane separating method and device - Google Patents
Waste lithium ion cell anode waste cobalt-lithium membrane separating method and device Download PDFInfo
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- CN101071893A CN101071893A CNA2007100576247A CN200710057624A CN101071893A CN 101071893 A CN101071893 A CN 101071893A CN A2007100576247 A CNA2007100576247 A CN A2007100576247A CN 200710057624 A CN200710057624 A CN 200710057624A CN 101071893 A CN101071893 A CN 101071893A
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- lithium
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- ion cell
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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
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Abstract
The invention discloses a waste lithium ion battery anode waste material cobalt-lithium membrane separating method, characterized by comprising the steps of: cutting the removed cobalt-lithium membrane into 1-3 cm sized blocks, and immersing them in polar organic solvent and heating to 40-100 deg.C, dissolving for 5-3 min while blending, stilling to deposit lithium cobaltate to the bottom of the organic solvent, and separating them by filtering. And the invention designs a special device for this method, comprising bracket, containing drum, drive mechanism, blending oar and porous grate plate. And its benefits: simple to design, simple and easy to operate, having good separating effect, organic solvent reusable, environmental-protection and economic, and convenient to large-scale spreading and application.
Description
[technical field]
The present invention relates to battery of mobile phone and disassemble and the recycling field, particularly a kind of waste lithium ion cell anode waste cobalt-lithium membrane separating method and device.
[background technology]
In the social life now,, use mobile phone to become necessary tool in people's work, the life along with communication science development of technology and development.And the employed electrical source consumption of mobile phone is huge, the processing of refuse battery has been become the important topic of environmental protection.In the prior art to the processing method of waste and old lithium ion battery commonly used hydrometallurgy arranged, directly the cobalt-lithium membrane positive plate is dissolved by alkali, acid, finally extract wherein precious metal through follow-up a series of processing again, so just aluminium strip has been gone into subsequent treatment, make subsequent treatment process become complicated, cost uprises, and aluminium becomes impurity, finally may influence product quality.
[summary of the invention]
Purpose of the present invention is intended to for overcoming the deficiencies in the prior art, and provide a kind of waste lithium ion cell anode waste cobalt-lithium membrane separating method and device, by earlier lithium cobaltate cathode material and aluminium foil being separated, subsequent treatment is carried out in the organic solvent immersion and the stirring that re-use polarity, makes last total superior product quality that obtains.
The present invention discloses a kind of waste lithium ion cell anode waste cobalt-lithium membrane separating method for addressing the above problem, it is characterized in that may further comprise the steps: the bulk that the cobalt-lithium membrane of disassembling is cut into 1～3cm size, the organic solvent of putting into polarity soaks, be heated to 40～100 ℃ of scopes, and under agitation dissolve 5～30min, leave standstill, make cobalt acid lithium be deposited to the organic solvent bottom, by filtering with its separation.
The present invention has designed a kind of isolated plant for this method.It comprises support, and drum and transmission mechanism is characterized in that described drum is fixed on the support, and the bottom of drum is provided with collection hole, is provided with heating collar in the bucket wall of drum; Near the place, bottom a paddle is housed in the described drum, the paddle axle is connected with the reductor of transmission mechanism; The below of described paddle also is provided with a porous grate plate.
The present invention is separated lithium cobaltate cathode material and aluminium foil earlier, carries out subsequent treatment again, has avoided aluminium to enter a large amount of loaded down with trivial details processing step that subsequent treatment is brought, last total superior product quality that obtains, and separative efficiency height, good separating effect, technological parameter is easy to control, can be used for batch process.This waste lithium ion cell anode waste cobalt-lithium membrane separation device simplicity of design, operation is simple, and organic solvent is reusable, and not only environmental protection but also economy are convenient to large-scale promotion and are used.
[description of drawings]
Fig. 1 waste lithium ion cell anode waste cobalt-lithium membrane separation device schematic diagram.
Among the figure: 1. loam cake; 2. drum; 3. porous grate plate; 4. grate holder; 5. electric heating cover; 6. paddle axle; 7. paddle; 8. collection hole; 9. reductor; 10. support.
Be described in detail with reference to accompanying drawing below in conjunction with embodiments of the invention.
[embodiment]
Organic solvent separation of cobalt lithium membrane process method of the present invention:
Cobalt-lithium membrane is cut into the bulk of 1～3cm size, select for use organic solvent that it is soaked, guarantee that solvent soaked cobalt-lithium membrane, heat in 40～100 ℃ of scopes, dissolve 5～30min under stirring state, lithium cobaltate cathode material splits away off from aluminium foil, after leaving standstill a period of time, cobalt acid lithium sinks to the organic solvent bottom, and by filtering its separation, upper strata clarification organic solvent is reusable.Wherein available organic solvent has NMP (N-methyl pyrrolidone), DMAC (N, N-dimethylacetylamide) etc.
Dissolution mechanism: for solute A and solvent B.Gravitation K between solute A molecule and solvent B molecule
ABSurpass gravitation K between molten or solvent interior molecules
AAAnd K
BBThe time, solute A just can be dissolved among certain solvent B, and forms solution.Interaction force between A, the B molecule is then relevant with the polarity of A, B molecule.Therefore, for the PVDF of strong polarity, suitable solvent should be the organic solvent of polarity.
Separate, dedicated device of the present invention as shown in Figure 1, by support 10, drum 2, transmission mechanism, compositions such as paddle 7 and porous grate plate 3.Drum is fixed on the support, and the bottom of drum is provided with collection hole 8, is provided with electric heating cover 5 in the bucket wall of drum.The paddle that is equipped with near the place, bottom in the drum is connected with the reductor 9 of transmission mechanism by paddle axle 6.The below of paddle is provided with a porous grate plate, and porous grate plate supports by the grate holder 4 of being equipped with in the drum.The top of drum can also be provided with a loam cake 1.
Embodiment 1: cobalt-lithium membrane is cut into the bulk of 2cm size, with NMP it is soaked, adopt solid-liquid than 1: 4, be heated to 60 ℃, stir 15min, the sour lithium of cobalt can split away off from aluminium foil fully, and separating effect is fine.
Embodiment 2: cobalt-lithium membrane is cut into the bulk of 4cm size, and NMP soaks it with organic solvent, adopts solid-liquid than 1: 4, is heated to 60 ℃, stirs 15min, and cobalt-lithium membrane is rolled phenomenon when finding to stir, and is wrapped in inboard cobalt acid lithium and is difficult to removal.
Embodiment 3: cobalt-lithium membrane is cut into the bulk of 2cm size, and NMP soaks it with organic solvent, is heated to 60 ℃, stirs 15min, and cobalt acid lithium can split away off from aluminium foil fully, and separating effect is fine.
Embodiment 4: cobalt-lithium membrane is cut into the bulk of 2cm size, and NMP soaks it with organic solvent, is heated to 100 ℃, stirs 5min, and cobalt acid lithium can split away off from aluminium foil fully, and separating effect is fine.
When the separate, dedicated device uses, positive electrode cobalt-lithium membrane and soak are poured in the tank diameter with certain proportion, stir by the motor drives paddle, simultaneously the electric heating cover of groove outer wall is adjusted to uniform temperature (40～100 ℃), stir the regular hour (after 5～30min), cobalt acid lithium comes off from aluminium foil, aluminium foil is retained on the grate plate, and cobalt acid lithium sinks to the bottom of groove along the grate hole, after leaving standstill, soak and cobalt acid lithium are separated, respectively with its taking-up.
Claims (5)
1, a kind of waste lithium ion cell anode waste cobalt-lithium membrane separating method, it is characterized in that may further comprise the steps: the bulk that the cobalt-lithium membrane of disassembling is cut into 1～3cm size, the organic solvent of putting into polarity soaks, be heated to 40～100 ℃ of scopes, and under agitation dissolve 5～30min, leave standstill, make cobalt acid lithium be deposited to the organic solvent bottom, by filtering with its separation.
2, waste lithium ion cell anode waste cobalt-lithium membrane separating method according to claim 1, the organic solvent that it is characterized in that described polarity is N-methyl pyrrolidone or N, the N-dimethylacetylamide.
3, a kind of device that is used for the described waste lithium ion cell anode waste cobalt-lithium membrane separating method of claim 1, comprise support, drum and transmission mechanism is characterized in that described drum is fixed on the support, and the bottom of drum is provided with collection hole, are provided with heating collar in the bucket wall of drum; Near the place, bottom a paddle is housed in the described drum, the paddle axle is connected with the reductor of transmission mechanism; The below of described paddle also is provided with a porous grate plate.
4, waste lithium ion cell anode waste cobalt-lithium membrane separation device according to claim 3 is characterized in that described porous grate plate supports by the grate holder of being equipped with in the drum.
5,, it is characterized in that the top of described drum is provided with a loam cake according to claim 3 or 4 described waste lithium ion cell anode waste cobalt-lithium membrane separation devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100576247A CN101071893A (en) | 2007-06-14 | 2007-06-14 | Waste lithium ion cell anode waste cobalt-lithium membrane separating method and device |
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| CNA2007100576247A CN101071893A (en) | 2007-06-14 | 2007-06-14 | Waste lithium ion cell anode waste cobalt-lithium membrane separating method and device |
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| CN101071893A true CN101071893A (en) | 2007-11-14 |
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| CNA2007100576247A Pending CN101071893A (en) | 2007-06-14 | 2007-06-14 | Waste lithium ion cell anode waste cobalt-lithium membrane separating method and device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570347B (en) * | 2008-04-30 | 2012-10-17 | 深圳市比克电池有限公司 | Method for recovering lithium-ion battery cathode materials |
| CN103219562A (en) * | 2013-04-10 | 2013-07-24 | 山东威高东生新能源科技有限公司 | Method for recycling waste ternary polymer power lithium battery |
| CN103261455A (en) * | 2010-12-14 | 2013-08-21 | 住友金属矿山株式会社 | Method for separating positive-ole active substance and method for recovering valuable metals from lithium ion battery |
| CN103474718A (en) * | 2013-08-27 | 2013-12-25 | 华中科技大学武昌分校 | Method for recovering cobalt from lithium battery anode material |
| CN103641175A (en) * | 2013-12-02 | 2014-03-19 | 河南师范大学 | Method for dissolving positive material of waste/used lithium-ion batteries |
| CN103915661A (en) * | 2013-01-09 | 2014-07-09 | 中国科学院过程工程研究所 | Method for direct recovery and restoration of lithium ion battery positive electrode material |
| CN104577246A (en) * | 2015-01-04 | 2015-04-29 | 合肥国轩高科动力能源股份公司 | Recycling method and recycling device for cathode material and anode material of spent lithium-ion battery |
| CN106299523A (en) * | 2016-08-24 | 2017-01-04 | 合肥国轩高科动力能源有限公司 | The segregation apparatus of a kind of lithium ion battery plus-negative plate active substance and collector and separation method |
| CN110364683A (en) * | 2019-05-31 | 2019-10-22 | 天津力神电池股份有限公司 | A kind of stripping means of electrodes of lithium-ion batteries |
| CN112786989A (en) * | 2021-03-17 | 2021-05-11 | 中南大学 | Method for separating active material layer and current collector of battery electrode plate |
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2007
- 2007-06-14 CN CNA2007100576247A patent/CN101071893A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570347B (en) * | 2008-04-30 | 2012-10-17 | 深圳市比克电池有限公司 | Method for recovering lithium-ion battery cathode materials |
| CN103261455B (en) * | 2010-12-14 | 2015-08-26 | 住友金属矿山株式会社 | The separation method of positive active material and reclaim the method for valuable metal from lithium ion battery |
| CN103261455A (en) * | 2010-12-14 | 2013-08-21 | 住友金属矿山株式会社 | Method for separating positive-ole active substance and method for recovering valuable metals from lithium ion battery |
| CN103915661A (en) * | 2013-01-09 | 2014-07-09 | 中国科学院过程工程研究所 | Method for direct recovery and restoration of lithium ion battery positive electrode material |
| CN103915661B (en) * | 2013-01-09 | 2016-12-28 | 中国科学院过程工程研究所 | A kind of direct recovery the method repairing anode material for lithium-ion batteries |
| CN103219562A (en) * | 2013-04-10 | 2013-07-24 | 山东威高东生新能源科技有限公司 | Method for recycling waste ternary polymer power lithium battery |
| CN103219562B (en) * | 2013-04-10 | 2019-02-01 | 山东威高新能源科技有限公司 | A kind of method of waste and old ter-polymers dynamic lithium battery recycling |
| CN103474718A (en) * | 2013-08-27 | 2013-12-25 | 华中科技大学武昌分校 | Method for recovering cobalt from lithium battery anode material |
| CN103474718B (en) * | 2013-08-27 | 2015-11-04 | 华中科技大学武昌分校 | A kind of method of Call Provision from anode material of lithium battery |
| CN103641175A (en) * | 2013-12-02 | 2014-03-19 | 河南师范大学 | Method for dissolving positive material of waste/used lithium-ion batteries |
| CN104577246A (en) * | 2015-01-04 | 2015-04-29 | 合肥国轩高科动力能源股份公司 | Recycling method and recycling device for cathode material and anode material of spent lithium-ion battery |
| CN106299523A (en) * | 2016-08-24 | 2017-01-04 | 合肥国轩高科动力能源有限公司 | The segregation apparatus of a kind of lithium ion battery plus-negative plate active substance and collector and separation method |
| CN110364683A (en) * | 2019-05-31 | 2019-10-22 | 天津力神电池股份有限公司 | A kind of stripping means of electrodes of lithium-ion batteries |
| CN112786989A (en) * | 2021-03-17 | 2021-05-11 | 中南大学 | Method for separating active material layer and current collector of battery electrode plate |
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