CN105226344A - The recovery method of a kind of cobalt in waste lithium ion batteries acid lithium and graphite - Google Patents
The recovery method of a kind of cobalt in waste lithium ion batteries acid lithium and graphite Download PDFInfo
- Publication number
- CN105226344A CN105226344A CN201510749514.1A CN201510749514A CN105226344A CN 105226344 A CN105226344 A CN 105226344A CN 201510749514 A CN201510749514 A CN 201510749514A CN 105226344 A CN105226344 A CN 105226344A
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- mixed material
- graphite
- lithium ion
- fine fraction
- waste
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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
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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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
- H01M10/05—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
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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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- 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 present invention discloses a kind of cobalt in waste lithium ion batteries acid lithium and the recovery method of graphite, comprises the following steps: a. discharges to waste and old lithium ion battery, disassemble, broken, forms mixed material; B. mixed material is sieved, obtain fine fraction mixed material; C. the fine fraction mixed material engaging friction charge device obtained carries out charged; D. the fine fraction mixed material after charged enters electrostatic separator and carries out sorting; E. in electrostatic separator product-collecting groove, collect cobalt acid lithium and graphite respectively.Before sorting, preparation is simple, only needs crushing and screening, can save a lot of time, and uses the broken function of size fractionated to make lithium ion battery completely broken, the efficiency of sorting after substantially increasing; Obtain fine fraction mixed material after utilizing particle size differences to sieve, then carry out friction electrical selection, fully can not only reclaim the cobalt acid lithium and graphite of lithium ion battery, and be only directed to fine fraction mixed material and carry out sorting, successful, it is convenient to collect.
Description
Technical field
The present invention relates to a kind of recovery method, particularly relate to the recovery method of a kind of cobalt in waste lithium ion batteries acid lithium and graphite.
Background technology
The reply solid waste described in country's " prevention and control of environmental pollution by solid wastes method " implements minimizing, resource, harmless treatment, scientific utilization electronic waste, will become the important supplement of Resources, be the Important Action of Resources for construction circular form sustainable development society.
Current research method both domestic and external mainly contains: floatation, polishing, pyrogenic process, organic solvent method, the precipitation method, extraction, salting out method, ion-exchange, electrochemical process, Bioleaching method.
These are existing reclaims major part in the method for valuable metal and adopts chemical agent from used Li ion cell, as: sulfuric acid add hydrogen peroxide, sodium thiosulfate, hydrochloric acid, nitric acid dissolve give up LiCoO2, inevitably produce containing acid gas, Cl2 or NOx waste gas in leaching process, in removal process, serious secondary pollution is caused to environment.In addition, many, the long flow path of the subsequent treatment operation of leachate causes cost recovery high; Leaching process all have employed higher acid concentration and extraction temperature again to improve metal recovery rate and shortening extraction time, and this requires very high to leaching equipment corrosion-resistant.Adopt the salt of useless LiCoO2 powder and alkali metallic sodium and potassium mix the method for roasting afterwards, precipitation reagent oxalates consumption is many greatly, in removal process to there is the salt consumption of alkali metallic sodium and potassium in roasting process, causes the shortcoming that cost recovery is high; , there is removal process and easily make ball-grinding machine be corroded and introduce the shortcoming of impurity in ball grinding technique after adopting useless LiCoO2 material to mix with natural organic acids and hydrogen peroxide.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides the recovery method of a kind of cobalt in waste lithium ion batteries acid lithium and graphite, do not need chemicals treatment, meet the requirement of environmental protection now; Technique is simple, consume energy low and without water, eliminate sewage handling problem, reduces cost.
To achieve these goals, the technical solution used in the present invention is: the recovery method of a kind of cobalt in waste lithium ion batteries acid lithium and graphite, comprises the following steps:
A. waste and old lithium ion battery discharged, disassemble, broken, form mixed material;
B. mixed material is sieved, obtain fine fraction mixed material;
C. the fine fraction mixed material engaging friction charge device obtained carries out charged;
D. the fine fraction mixed material after charged enters electrostatic separator and carries out sorting;
E. in electrostatic separator product-collecting groove, collect cobalt acid lithium and graphite respectively.
Whole method adopts air-flow as mass transport and friction charged carrier.
The adjustable range of described electrostatic separator two-plate voltage is 10-60kv.
Compared with prior art have the following advantages: before sorting, preparation is very simple, only need fragmentation, sieve, a lot of time can be saved, raise the efficiency, and use the broken function of size fractionated to make lithium ion battery completely broken, the efficiency of sorting after substantially increasing; Obtain fine fraction mixed material after utilizing particle size differences to sieve, then carry out friction electrical selection, fully can not only reclaim the cobalt acid lithium and graphite of lithium ion battery, and be only directed to fine fraction mixed material and carry out sorting, successful, it is convenient to collect; The present invention utilizes cobalt acid lithium in lithium ion battery to realize being separated of different component with the difference of the charged character of Graphite friction, fine fraction mixed material is carried out sorting, waste and old lithium ion battery is recycled, this method does not need chemicals treatment, technique is simple, it is low to consume energy and without water, can not produce environment and pollute, reduce cost; Can not produce other additional compounds because of chemical change during sorting, separating purity is high.In addition, involved device is simple, and floor space is little, and generalization is strong, has good application prospect.
Accompanying drawing explanation
Fig. 1 is workflow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the recovery method of this cobalt in waste lithium ion batteries acid lithium and graphite, specifically comprises the following steps:
A. waste and old lithium ion battery discharged, disassemble, broken, form mixed material;
B. sieve mixed material, obtain fine fraction mixed material, this step is physics screening, and object is that the coarse fraction material avoiding particle size differences larger disturbs when being separated in the electric field mutually;
C. the fine fraction mixed material engaging friction charge device obtained carries out charged, and this step is that fine fraction mixed material is carried out friction charged process;
D. the fine fraction mixed material after charged enters electrostatic separator and carries out sorting, and object utilizes the difference of the friction charged character of material to carry out sorting to mixed material in the electric field;
E. in electrostatic separator product-collecting groove, collect cobalt acid lithium and graphite respectively.
Whole method adopts air-flow as mass transport and friction charged carrier.
After screening, institute obtains the mixture of the fine particle stage material mainly sour lithium of cobalt and graphite, cobalt acid lithium is utilized to be separated in the electric field by fine fraction mixed material with the difference of graphite granule friction charged character, according to the corresponding gathering-device of how many designs of preliminary experiment products therefrom kind, be regulate in 10-60kv in voltage range, collect end product and can obtain the higher valuable component of purity.
Step a and b can adopt manually to disassemble and also can directly carry out continuing after fragmentation to carry out fragmentation in fine fraction disintegrating machine in coarse fraction disintegrating machine, obtain fine fraction mixed material, according to time in the above method step c, fine fraction mixed material carries out charged, can carry out charged in different charge devices, increase its charge capacity, give full play to its feature; Enter electrostatic separator according to the fine particle stage material after charged in the above method step d and carry out sorting, wherein electrostatic separator can be different enter material way, designs according to the charge device in step c; Voltage regulation limits according to the electrostatic separator designed in the above method step d is 10-60kv, in each electrostatic separator, different materials is collected respectively according in the above method step e, be the concrete kind according to trial test determination material, then design corresponding gathering-device.
The instantiation that content of the present invention proposes; only be used for technology contents is described, but not by the restriction of invention narrow sense in the above-described embodiments, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a recovery method for cobalt in waste lithium ion batteries acid lithium and graphite, is characterized in that: comprise the following steps:
A. waste and old lithium ion battery discharged, disassemble, broken, form mixed material;
B. mixed material is sieved, obtain fine fraction mixed material;
C. the fine fraction mixed material engaging friction charge device obtained carries out charged;
D. the fine fraction mixed material after charged enters electrostatic separator and carries out sorting;
E. in electrostatic separator product-collecting groove, collect cobalt acid lithium and graphite respectively.
2. the method for Call Provision acid lithium and graphite from waste and old lithium ion battery according to claim 1, is characterized in that: whole method adopts air-flow as mass transport and friction charged carrier.
3. the method for Call Provision acid lithium and graphite from waste and old lithium ion battery according to claim 1, is characterized in that: the adjustable range of described electrostatic separator two-plate voltage is 10-60kv.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510749514.1A CN105226344B (en) | 2015-11-09 | 2015-11-09 | A kind of recovery method of cobalt in waste lithium ion batteries acid lithium and graphite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510749514.1A CN105226344B (en) | 2015-11-09 | 2015-11-09 | A kind of recovery method of cobalt in waste lithium ion batteries acid lithium and graphite |
Publications (2)
| Publication Number | Publication Date |
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| CN105226344A true CN105226344A (en) | 2016-01-06 |
| CN105226344B CN105226344B (en) | 2017-12-29 |
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| CN201510749514.1A Expired - Fee Related CN105226344B (en) | 2015-11-09 | 2015-11-09 | A kind of recovery method of cobalt in waste lithium ion batteries acid lithium and graphite |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914419A (en) * | 2016-07-04 | 2016-08-31 | 首都师范大学 | High-efficiency sorting and recycling device for waste lithium batteries |
| CN107275703A (en) * | 2017-06-08 | 2017-10-20 | 深圳市恒创睿能环保科技有限公司 | A kind of method that electrode material is reclaimed from waste lithium ion |
| CN107293817A (en) * | 2017-06-08 | 2017-10-24 | 深圳市恒创睿能环保科技有限公司 | A kind of waste and old lithium ion battery each component is efficiently dissociated and classified reclaiming method |
| CN108110356A (en) * | 2017-12-08 | 2018-06-01 | 天齐锂业股份有限公司 | A kind of full-automatic waste and old lithium ion battery recovery process and system |
| CN111525207A (en) * | 2020-04-16 | 2020-08-11 | 宁波诺丁汉大学 | Lithium ion power battery recovery method |
| CN112086702A (en) * | 2020-08-11 | 2020-12-15 | 广东邦普循环科技有限公司 | Automatic fine and deep sorting method and device for power batteries |
| CN114700179A (en) * | 2022-03-21 | 2022-07-05 | 国网河南省电力公司电力科学研究院 | Method for separating and recovering waste lithium iron phosphate positive and negative electrode active substances |
| CN115911283A (en) * | 2022-11-17 | 2023-04-04 | 中国矿业大学 | Dry modification upgrading method for production raw materials of graphite electrode and battery cathode |
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| EP1941949A1 (en) * | 2005-10-27 | 2008-07-09 | Kawasaki Plant Systems Kabushiki Kaisha | Electrostatic separation method and electrostatic separator |
| CN102569940A (en) * | 2011-01-20 | 2012-07-11 | 常州翔宇资源再生科技有限公司 | Method for recycling negative electrode material of waste lithium ion battery |
| CN104577249A (en) * | 2015-01-14 | 2015-04-29 | 上海交通大学 | Method for recycling waste lithium cobalt oxide lithium ion battery |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1535760A (en) * | 2003-04-11 | 2004-10-13 | 中国矿业大学 | Dry physical recovery process for recovering valuable components from waste electronic board card |
| EP1941949A1 (en) * | 2005-10-27 | 2008-07-09 | Kawasaki Plant Systems Kabushiki Kaisha | Electrostatic separation method and electrostatic separator |
| CN101011681A (en) * | 2006-02-05 | 2007-08-08 | 中国矿业大学 | Fine granule material friction electrical selection method and device |
| CN102569940A (en) * | 2011-01-20 | 2012-07-11 | 常州翔宇资源再生科技有限公司 | Method for recycling negative electrode material of waste lithium ion battery |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914419A (en) * | 2016-07-04 | 2016-08-31 | 首都师范大学 | High-efficiency sorting and recycling device for waste lithium batteries |
| CN105914419B (en) * | 2016-07-04 | 2018-12-14 | 首都师范大学 | A kind of waste lithium cell efficient separation recyclable device |
| CN107275703A (en) * | 2017-06-08 | 2017-10-20 | 深圳市恒创睿能环保科技有限公司 | A kind of method that electrode material is reclaimed from waste lithium ion |
| CN107293817A (en) * | 2017-06-08 | 2017-10-24 | 深圳市恒创睿能环保科技有限公司 | A kind of waste and old lithium ion battery each component is efficiently dissociated and classified reclaiming method |
| CN108110356A (en) * | 2017-12-08 | 2018-06-01 | 天齐锂业股份有限公司 | A kind of full-automatic waste and old lithium ion battery recovery process and system |
| CN108110356B (en) * | 2017-12-08 | 2024-02-06 | 天齐锂业股份有限公司 | Full-automatic waste lithium ion battery recycling process and system |
| CN111525207A (en) * | 2020-04-16 | 2020-08-11 | 宁波诺丁汉大学 | Lithium ion power battery recovery method |
| CN111525207B (en) * | 2020-04-16 | 2021-10-08 | 宁波诺丁汉大学 | Lithium ion power battery recovery method |
| CN112086702B (en) * | 2020-08-11 | 2021-12-17 | 广东邦普循环科技有限公司 | Automatic fine and deep sorting method and device for power batteries |
| WO2022033096A1 (en) * | 2020-08-11 | 2022-02-17 | 广东邦普循环科技有限公司 | Automated fine and deep separating method for power batteries, and device |
| US11759792B2 (en) | 2020-08-11 | 2023-09-19 | Guangdong Brunp Recycling Technology Co., Ltd. | Method for power battery automatic fine-quantity sorting and apparatus thereof |
| CN112086702A (en) * | 2020-08-11 | 2020-12-15 | 广东邦普循环科技有限公司 | Automatic fine and deep sorting method and device for power batteries |
| CN114700179A (en) * | 2022-03-21 | 2022-07-05 | 国网河南省电力公司电力科学研究院 | Method for separating and recovering waste lithium iron phosphate positive and negative electrode active substances |
| CN114700179B (en) * | 2022-03-21 | 2023-09-15 | 国网河南省电力公司电力科学研究院 | Method for separating and recovering positive and negative active substances of waste lithium iron phosphate |
| CN115911283A (en) * | 2022-11-17 | 2023-04-04 | 中国矿业大学 | Dry modification upgrading method for production raw materials of graphite electrode and battery cathode |
| CN115911283B (en) * | 2022-11-17 | 2023-09-22 | 中国矿业大学 | Dry modification and quality improvement method for battery cathode production raw material |
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| Publication number | Publication date |
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| CN105226344B (en) | 2017-12-29 |
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Granted publication date: 20171229 Termination date: 20191109 |