CN106920999A - A kind of recovery method of anode material for lithium-ion batteries - Google Patents
A kind of recovery method of anode material for lithium-ion batteries Download PDFInfo
- Publication number
- CN106920999A CN106920999A CN201710214562.XA CN201710214562A CN106920999A CN 106920999 A CN106920999 A CN 106920999A CN 201710214562 A CN201710214562 A CN 201710214562A CN 106920999 A CN106920999 A CN 106920999A
- Authority
- CN
- China
- Prior art keywords
- lithium
- magnetic
- powder
- recovery method
- anode material
- 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.)
- Pending
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of recovery method of anode material for lithium-ion batteries, belong to lithium ion battery recovery technology field.The recovery method of anode material for lithium-ion batteries of the invention, comprises the following steps：1) after being discharged lithium ion battery and discharged liquid waste processing, crushed after Integral-crushing or dismounting shell, obtain powder；Contain at least one of nickel, cobalt, manganese or iron element in the positive electrode of the lithium ion battery；2) low-intensity magnetic field using magnetic induction intensity less than 5000Gs carries out magnetic separation to powder, and removal is selected material, obtained by the powder of weak magnetic substance and nonmagnetic material composition；3) using magnetic induction intensity more than 9000Gs high-intensity magnetic field to step 2) gained powder carry out magnetic separation, select the weaker positive electrode of magnetic.Recovery method of the invention, process is simple, it is not necessary to any chemical reagent, improve 5~10%, and increased the value of mixed material by the rate of recovery of positive electrode in lithium battery removal process.
Description
Technical field
The present invention relates to a kind of recovery method of anode material for lithium-ion batteries, belong to lithium ion battery recovery technology neck
Domain.
Background technology
Lithium ion battery has energy density high, lightweight and the good characteristic such as long lifespan due to it, is widely used logical
The field such as letter instrument, digital product and electric tool, electric automobile.Electric automobile is widelyd popularize in particular with country,
Future will have a large amount of dynamic lithium batteries for electric automobile field, but asking of also facing that a large amount of power lithium-ion batteries scrap simultaneously
Topic.Because vehicle-mounted lithium ion battery weighs hundreds of kilograms, difficulty is recycled greatly, will easily cause the very big wasting of resources and ring
Pollute in border.According to China Automotive Technology ＆ Research Center, it is expected that the rate of recovery of China's waste battery is less than 2%, therefore urgent need is carried
Rise lithium ion battery recovery utilization rate.
In the prior art, the main material that reclaims is copper, aluminium, positive mix and negative pole powder in waste and old lithium ion battery,
Wherein positive plate of lithium battery is that aluminium foil applies positive electrode, and lithium battery cathode plate is that Copper Foil applies negative material；But 90% with
On be recovered according to a price material all in lithium battery positive-negative plate.Current lithium ion battery recycling flow, either disposed of in its entirety
Or pole piece is individually processed, there is broken process, when crushing integral battery door or independent pole piece, can all there is pole piece and drop off phenomenon,
Broken rear mixed powder is produced, the mixed powder comparison of ingredients of this broken generation is complicated, contain both positive and negative polarity powder, disintegrating machine mill
The materials such as the ferrous materials and housing lost material of damage；How to process this lithium battery and reclaim the mixing produced in shattering process
Material, there is presently no particularly effective method, can chemically extract the valuable metal of the inside, but have in theory
The generation of secondary pollution.
The content of the invention
It is an object of the invention to provide a kind of process is simple, the recovery method of free of contamination anode material for lithium-ion batteries.
In order to realize the above object the technical solution adopted in the present invention is：
A kind of recovery method of anode material for lithium-ion batteries, comprises the following steps：
1) after being discharged lithium ion battery and discharged liquid waste processing, crushed after Integral-crushing or dismounting shell, obtain powder
Material；Contain at least one of nickel, cobalt, manganese or iron element in the positive electrode of the lithium ion battery；
2) using magnetic induction intensity less than 5000Gs low-intensity magnetic field to step 1) obtained by powder carry out magnetic separation, removal is selected
Material, obtains by the powder of weak magnetic substance and nonmagnetic material composition；
3) using magnetic induction intensity more than 9000Gs high-intensity magnetic field to step 2) obtained by powder carry out magnetic separation, select magnetic
Weaker positive electrode.
The recovery method of anode material for lithium-ion batteries of the invention, process is simple, it is not necessary to any chemical reagent, utilize
Weak magnetic magnetic separator separates the ferromagnetic substance in the broken rear mixed material of removal, is then separated with strong magnetic separator and has selected weak magnetic
Positive electrode, the rate of recovery of positive electrode in lithium battery removal process is improved 5~10%, and increased the valency of mixed material
Value.
Step 1) in, the lithium ion battery is cobalt acid lithium battery, lithium manganate battery, ferric phosphate lithium cell or nickel cobalt mangaic acid
One kind in lithium battery.The lithium ion battery that can be processed using the recovery method of anode material for lithium-ion batteries of the invention is not
Be limited to it is above-mentioned include it is several, in every anode pole piece the lithium ion battery containing weak magnetic substance can using the present invention
Recovery method reclaim positive electrode.
Step 1) in gained powder particle diameter be not more than 5mm.
Step 1) in, the powder is by the screenings after the sieved through sieve that aperture is 0.5~5mm.Oversize is main
For can not be by the metal of sieve aperture and nonmetallic materials, metal material be mainly both positive and negative polarity collector and lithium ion battery entirety
Metal shell after broken, nonmetallic materials are mainly barrier film and plastic casing, before weak magnetic magnetic separation is carried out, remove oversize,
It is favorably improved the efficiency of later separation.
Step 2) in the ferrous materials and lithium ion battery of selecting material predominantly disintegrating machine abrasion when integrally crushing
The steel objects such as box hat housing lost material.
Specific embodiment
Technical scheme is further described below in conjunction with specific embodiment.
Embodiment 1
The recovery method of the anode material for lithium-ion batteries of the present embodiment, comprises the following steps：
1) ferric phosphate lithium cell is discharged and is discharged electrolyte, then Integral-crushing, is 3mm with screen cloth mesh aperture
Vibratory sieve screening removal oversize, obtain the particle diameter no more than powder of 3mm；
2) by step 1) gained powder uses the magnetic induction intensity to carry out magnetic separation for the low-intensity (magnetic) separator of 4900Gs, and removal is selected
Go out material, obtain by the powder of weak magnetic substance and nonmagnetic material composition；
3) it is the high intensity magnetic separator of 10000Gs to step 2 to use magnetic induction intensity) obtained by material carry out magnetic separation, select
The weaker positive electrode of magnetic, the separation rate of positive electrode can reach more than 90%.
Embodiment 2
The recovery method of the anode material for lithium-ion batteries of the present embodiment, comprises the following steps：
1) ferric phosphate lithium cell is discharged and is discharged electrolyte, then Integral-crushing, is 1mm with screen cloth mesh aperture
Vibratory sieve screening removal oversize, obtain the particle diameter no more than powder of 1mm；
2) by step 1) gained powder uses the magnetic induction intensity to carry out magnetic separation for the low-intensity (magnetic) separator of 2500Gs, and removal is selected
Go out material, obtain by the powder of weak magnetic substance and nonmagnetic material composition；
3) it is the high intensity magnetic separator of 15000Gs to step 2 to use magnetic induction intensity) obtained by powder carry out magnetic separation, select
Go out the weaker positive electrode of magnetic, the separation rate of positive electrode can reach more than 90%.
Embodiment 3
The recovery method of the anode material for lithium-ion batteries of the present embodiment, comprises the following steps：
1) ferric phosphate lithium cell is discharged and is discharged electrolyte, then Integral-crushing, is 2mm with screen cloth mesh aperture
Vibratory sieve screening removal oversize, obtain the particle diameter no more than powder of 2mm；
2) by step 1) gained powder uses the magnetic induction intensity to carry out magnetic separation for the low-intensity (magnetic) separator of 1500Gs, and removal is selected
Go out material, obtain by the powder of weak magnetic substance and nonmagnetic material composition；
3) it is the high intensity magnetic separator of 12000Gs to step 2 to use magnetic induction intensity) obtained by powder carry out magnetic separation, select
Go out the weaker positive electrode of magnetic, the separation rate of positive electrode can reach more than 90%.
Claims (4)
1. a kind of recovery method of anode material for lithium-ion batteries, it is characterised in that：Comprise the following steps：
1) after being discharged lithium ion battery and discharged liquid waste processing, crushed after Integral-crushing or dismounting shell, obtain powder；Institute
State and contain at least one of nickel, cobalt, manganese or iron element in the positive electrode of lithium ion battery；
2) low-intensity magnetic field using magnetic induction intensity less than 5000Gs is to step 1) obtained by powder carry out magnetic separation, remove cull
Matter, obtains by weak magnetic substance and the powder without magnetic material composition；
3) using magnetic induction intensity more than 9000Gs high-intensity magnetic field to step 2) obtained by powder carry out magnetic separation, select magnetic weaker
Positive electrode.
2. the recovery method of anode material for lithium-ion batteries according to claim 1, it is characterised in that：Step 1) in, institute
Lithium ion battery is stated for cobalt acid lithium battery, lithium manganate battery, the one kind in ferric phosphate lithium cell or nickle cobalt lithium manganate battery.
3. the recovery method of anode material for lithium-ion batteries according to claim 1, it is characterised in that：Step 1) middle gained
The particle diameter of powder is not more than 5mm.
4. the recovery method of the anode material for lithium-ion batteries according to claim 1 or 2 or 3, it is characterised in that：Step 1)
In, the powder is by the screenings after the sieved through sieve that aperture is 0.5~5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214562.XA CN106920999A (en) | 2017-04-01 | 2017-04-01 | A kind of recovery method of anode material for lithium-ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710214562.XA CN106920999A (en) | 2017-04-01 | 2017-04-01 | A kind of recovery method of anode material for lithium-ion batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106920999A true CN106920999A (en) | 2017-07-04 |
Family
ID=59568694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710214562.XA Pending CN106920999A (en) | 2017-04-01 | 2017-04-01 | A kind of recovery method of anode material for lithium-ion batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106920999A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546435A (en) * | 2017-07-17 | 2018-01-05 | 中航锂电（洛阳）有限公司 | A kind of physical purification method of lithium ion battery recovery positive mix |
| 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 |
| CN108906320A (en) * | 2018-06-14 | 2018-11-30 | 中山大学 | The separation method of different magnetic metals in a kind of waste and old lithium ion battery |
| CN109119714A (en) * | 2018-08-24 | 2019-01-01 | 广西师范大学 | The method for separating and recovering positive active material in lithium ion battery |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183740A (en) * | 2007-12-24 | 2008-05-21 | 深圳市格林美高新技术股份有限公司 | Method of controlling fragmentation and recovery of waste battery and system thereof |
| CN104394995A (en) * | 2012-03-30 | 2015-03-04 | Rsr科技股份有限公司 | Magnetic separation of electrochemical cell materials |
| CN106099238A (en) * | 2016-08-24 | 2016-11-09 | 赣州市豪鹏科技有限公司 | A kind of recovery method of waste secondary battery ferrum |
-
2017
- 2017-04-01 CN CN201710214562.XA patent/CN106920999A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183740A (en) * | 2007-12-24 | 2008-05-21 | 深圳市格林美高新技术股份有限公司 | Method of controlling fragmentation and recovery of waste battery and system thereof |
| CN104394995A (en) * | 2012-03-30 | 2015-03-04 | Rsr科技股份有限公司 | Magnetic separation of electrochemical cell materials |
| CN106099238A (en) * | 2016-08-24 | 2016-11-09 | 赣州市豪鹏科技有限公司 | A kind of recovery method of waste secondary battery ferrum |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546435A (en) * | 2017-07-17 | 2018-01-05 | 中航锂电（洛阳）有限公司 | A kind of physical purification method of lithium ion battery recovery positive mix |
| 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 |
| CN108906320A (en) * | 2018-06-14 | 2018-11-30 | 中山大学 | The separation method of different magnetic metals in a kind of waste and old lithium ion battery |
| CN108906320B (en) * | 2018-06-14 | 2019-12-27 | 中山大学 | Method for separating different magnetic metals in waste lithium ion battery |
| CN109119714A (en) * | 2018-08-24 | 2019-01-01 | 广西师范大学 | The method for separating and recovering positive active material in lithium ion battery |
| CN109119714B (en) * | 2018-08-24 | 2020-04-21 | 广西师范大学 | Method for separating and recovering positive active material in lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sun et al. | Management status of waste lithium-ion batteries in China and a complete closed-circuit recycling process | |
| CN105428745B (en) | A kind of innoxious comprehensive reutilization method of applying waste lithium ionic power battery | |
| CN108927401B (en) | Crushing and recycling process after anaerobic cracking of lithium battery | |
| CN110199429B (en) | Method for recovering valuable substances from used lithium ion battery | |
| Silveira et al. | Recovery of valuable materials from spent lithium ion batteries using electrostatic separation | |
| CN100449011C (en) | Method for recovering valuable metal in invalid lithium ion battery | |
| CN100440615C (en) | A recovery method for waste lithium ion cell | |
| CN102347520B (en) | Method for recovering power cells for new energy vehicles | |
| CN108110356B (en) | Full-automatic waste lithium ion battery recycling process and system | |
| CN106920999A (en) | A kind of recovery method of anode material for lithium-ion batteries | |
| Tenório et al. | Recovery of Ni-based alloys from spent NiMH batteries | |
| CN112670614B (en) | Physical sorting method for positive and negative electrode materials of waste lithium iron phosphate batteries | |
| CN108550942A (en) | A kind of innoxious recovery and treatment method of waste and old lithium ion battery full constituent | |
| CN107275700A (en) | A kind of waste and old lithium ion battery recovery and treatment method crushed based on wet type | |
| CN105226344B (en) | A kind of recovery method of cobalt in waste lithium ion batteries acid lithium and graphite | |
| CN108390119B (en) | Recovery processing method of lithium iron phosphate/ternary-lithium titanate battery | |
| CN107069078B (en) | Method for recovering lithium ion battery electrode plate material | |
| CN113083848A (en) | Sorting and recycling method for positive and negative electrode materials of waste lithium iron phosphate batteries | |
| CN104810566A (en) | Environmentally friendly recovery and treatment method of waste and old lithium iron phosphate power cells | |
| CN104183888A (en) | Green method for recovery and disposal of waste lithium iron phosphate power battery | |
| CN107546435A (en) | A kind of physical purification method of lithium ion battery recovery positive mix | |
| CN109904545A (en) | The method of diaphragm, copper foil and anode is recycled from applying waste lithium ionic power battery | |
| CN107946686A (en) | A kind of waste and old lithium ion battery recovery method | |
| CN106129522A (en) | A kind of preparation method utilizing lithium ion battery negative to reclaim graphite | |
| CN106099238A (en) | A kind of recovery method of waste secondary battery ferrum |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170704 |
|
| RJ01 | Rejection of invention patent application after publication |