CN102005625A - Process for treating wasted lithium cells - Google Patents
Process for treating wasted lithium cells Download PDFInfo
- Publication number
- CN102005625A CN102005625A CN2010102955860A CN201010295586A CN102005625A CN 102005625 A CN102005625 A CN 102005625A CN 2010102955860 A CN2010102955860 A CN 2010102955860A CN 201010295586 A CN201010295586 A CN 201010295586A CN 102005625 A CN102005625 A CN 102005625A
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- Prior art keywords
- cobalt
- lithium
- drying
- liquid
- handled
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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
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- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a process for treating wasted lithium cells, comprising the following steps of: (1) separating recycled wasted cells, wherein negative electrode materials and steel shells are directly recycled and packed to be used raw materials for sale; (2) dissolving cobalt-lithium membranes obtained from separation with an NMP (N-methyl-2-pyrrolidone) solvent, clarifying, redissolving clear liquid, and washing separated aluminum foils with water and drying for sale; (3) carrying out water washing, filtering, drying and leaching on lithium cobaltite slag to obtain a cobalt solution; and (4) further complexing and precipitating the cobalt solution to obtain B-Co(OH)2. The invention has the advantages that the inorganic solvent is adopted for dissolving a binder PVDF (Polyvinylidene Fluoride) of the lithium cobaltite to enable the lithium cobaltite to fall off from the aluminum foil, and the elementary aluminum foils are directly recycled without the performing of cobalt-aluminum separation in the traditional lithium cell recycling process, therefore, the whole recycling process of wasted lithium cells is simplified and recycled products are increased.
Description
Technical field
The present invention relates to the method that a kind of waste lithium cell is handled, particularly relate to a kind of process that adopts a kind of waste lithium cell processing of organic solvent dissolution cobalt acid lithium.
Background technology
Lithium ion battery is the present best chargeable chemical cell of technical performance in the world, have operating voltage height, specific energy big, have extended cycle life, self discharge is little, memory-less effect, advantage such as pollution-free, is widely used in fields such as mobile communication, notebook computer, portable dam, electric bicycle.World's lithium ion battery total output was above 2,500,000,000 in 2006, the lithium secondary battery market in the whole world mainly concentrates on mobile communication and notebook computer at present, domestic mobile subscriber has surpassed 200,000,000 families, occupies the whole world the first, and the lithium battery consumption is huge, consumption to non-renewable metals resources is sizable, therefore, reclaim economic worth height in the lithium ion battery, the metal that content is bigger, realize energy-saving and emission-reduction, sustainable development, significant.
The cobalt and the aluminium that need emphasis to reclaim in the lithium ion battery mainly concentrate on the positive electrode cobalt-lithium membrane, and the main component of cobalt-lithium membrane is that LiCoO2 active material, conductive acetylene are black, aluminum foil current collector and PVDF (Kynoar) bonding agent.
Cobalt-lithium membrane processing method commonly used has sulfuric acid dissolution method, soda boiling one sour molten method, reduction roasting one lixiviation process, floatation etc.Handling cobalt-lithium membrane is to realize that cobalt, aluminium separate with the acetylene black three's, and the separation to cobalt, acetylene black in the existing processing method is comparatively successful, and not ideal enough to cobalt, aluminium separating effect, and separation process complexity, the difficult control of condition, cost height.
Summary of the invention
The invention provides a kind of at above-mentioned weak point, adopt the binding agent PVDF of organic solvent dissolution cobalt acid lithium, cobalt acid lithium is split away off from aluminium foil, directly reclaim the simple substance aluminium foil, the cobalt aluminium that does not need to carry out in traditional lithium battery recovery technology separates, and simplifies whole waste lithium cell recovery process and increases and reclaim product.
The invention discloses the process that a kind of waste lithium cell is handled, described treatment process comprises the steps:
1) old and useless battery that reclaims is separated, negative material and box hat directly are recycled and packaged, and sell outward as raw material;
2) cobalt-lithium membrane that separation is obtained dissolves, clarifies with nmp solvent, and clear liquid dissolves again, outer selling behind the aluminium foil washing and drying of separation;
3) cobalt acid lithium slag passes through washing, filtration, drying, leaches, and obtains cobalt liquid;
4) the further complexing of cobalt liquid, post precipitation obtain B-Co (OH)
2
The further method of the present invention is: clear liquid described step 2) distills and draws distillate, cobalt acid lithium powder, acetylene black powder, solid PVDF.
The present invention further method is: described step 3) cobalt acid lithium slag leaches after adding cobalt acid lithium, acetylene black by washing, filtration, drying, obtains cobalt liquid.
The further again method of the present invention is: described step 4) cobalt liquid adds the further complexing of ammoniacal liquor, adds the heavy cobalt of NaOH and obtains B-Co (OH)
2
The beneficial effect of the process that a kind of waste lithium cell of the present invention is handled is: the binding agent PVDF that adopts organic solvent dissolution cobalt acid lithium, cobalt acid lithium is split away off from aluminium foil, directly reclaim the simple substance aluminium foil, the cobalt aluminium that does not need to carry out in traditional lithium battery recovery technology separates, and simplifies whole waste lithium cell recovery process and increases and reclaim product.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.
Be illustrated in figure 1 as the flow chart of the embodiment of the invention.The invention discloses the process that a kind of waste lithium cell is handled, described treatment process comprises the steps:
1) old and useless battery that reclaims is separated, negative material and box hat directly are recycled and packaged, and sell outward as raw material;
2) cobalt-lithium membrane that separation is obtained dissolves, clarifies with nmp solvent, and clear liquid dissolves again, outer selling behind the aluminium foil washing and drying of separation, and clear liquid distills and draws distillate, cobalt acid lithium powder, acetylene black powder, solid PVDF.；
3) cobalt acid lithium slag leaches after adding cobalt acid lithium, acetylene black by washing, filtration, drying, obtains cobalt liquid;
4) cobalt liquid adds the further complexing of ammoniacal liquor, adds the heavy cobalt of NaOH and obtains B-Co (OH)
2
Abovely the present invention is described in detail in conjunction with execution mode; only be explanation technical conceive of the present invention and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. the process handled of a waste lithium cell, it is characterized in that: described treatment process comprises the steps:
1) old and useless battery that reclaims is separated, negative material and box hat directly are recycled and packaged, and sell outward as raw material;
2) cobalt-lithium membrane that separation is obtained dissolves, clarifies with nmp solvent, and clear liquid dissolves again, outer selling behind the aluminium foil washing and drying of separation;
3) cobalt acid lithium slag passes through washing, filtration, drying, leaches, and obtains cobalt liquid;
4) the further complexing of cobalt liquid, post precipitation obtain B-Co (OH)
2
2. the process that a kind of waste lithium cell according to claim 1 is handled is characterized in that: clear liquid described step 2) distills and draws distillate, cobalt acid lithium powder, acetylene black powder, solid PVDF.
3. the process that a kind of waste lithium cell according to claim 1 is handled is characterized in that: described step 3) cobalt acid lithium slag leaches after adding cobalt acid lithium, acetylene black by washing, filtration, drying, obtains cobalt liquid.
4. the process that a kind of waste lithium cell according to claim 1 is handled, it is characterized in that: described step 4) cobalt liquid adds the further complexing of ammoniacal liquor, adds the heavy cobalt of NaOH and obtains B-Co (OH)
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102955860A CN102005625A (en) | 2010-09-28 | 2010-09-28 | Process for treating wasted lithium cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102955860A CN102005625A (en) | 2010-09-28 | 2010-09-28 | Process for treating wasted lithium cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102005625A true CN102005625A (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102955860A Pending CN102005625A (en) | 2010-09-28 | 2010-09-28 | Process for treating wasted lithium cells |
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| CN (1) | CN102005625A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681005A (en) * | 2013-12-13 | 2014-03-26 | 南开大学 | Method for manufacturing supercapacitor electrode by using recycled lithium cobalt oxides |
| CN104520267A (en) * | 2012-08-02 | 2015-04-15 | 拜尔农作物科学股份公司 | Process for preparing substituted biphenyls by C-H activation |
| CN106299532A (en) * | 2016-10-08 | 2017-01-04 | 合肥国轩高科动力能源有限公司 | Method for recycling ceramic diaphragm of lithium battery |
| CN113013515A (en) * | 2021-02-23 | 2021-06-22 | 山东泰一新能源股份有限公司 | Cylindrical lithium ion battery recycling method and device |
| CN117954798A (en) * | 2024-03-26 | 2024-04-30 | 嘉兴模度新能源有限公司 | Detachable electric connection structure of cylindrical battery |
-
2010
- 2010-09-28 CN CN2010102955860A patent/CN102005625A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104520267A (en) * | 2012-08-02 | 2015-04-15 | 拜尔农作物科学股份公司 | Process for preparing substituted biphenyls by C-H activation |
| CN104520267B (en) * | 2012-08-02 | 2017-07-14 | 拜尔农作物科学股份公司 | The method that substituted biphenyl is prepared by C H activation |
| CN103681005A (en) * | 2013-12-13 | 2014-03-26 | 南开大学 | Method for manufacturing supercapacitor electrode by using recycled lithium cobalt oxides |
| CN106299532A (en) * | 2016-10-08 | 2017-01-04 | 合肥国轩高科动力能源有限公司 | Method for recycling ceramic diaphragm of lithium battery |
| CN106299532B (en) * | 2016-10-08 | 2019-03-26 | 合肥国轩高科动力能源有限公司 | Method for recycling ceramic diaphragm of lithium battery |
| CN113013515A (en) * | 2021-02-23 | 2021-06-22 | 山东泰一新能源股份有限公司 | Cylindrical lithium ion battery recycling method and device |
| CN117954798A (en) * | 2024-03-26 | 2024-04-30 | 嘉兴模度新能源有限公司 | Detachable electric connection structure of cylindrical battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Suzhou Qunrui Environmental Protection Technology Co., Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110406 |