CN105244562A - Method for preparing lithium salt from positive plate of lithium-ion battery - Google Patents
Method for preparing lithium salt from positive plate of lithium-ion battery Download PDFInfo
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- CN105244562A CN105244562A CN201510574765.0A CN201510574765A CN105244562A CN 105244562 A CN105244562 A CN 105244562A CN 201510574765 A CN201510574765 A CN 201510574765A CN 105244562 A CN105244562 A CN 105244562A
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- China
- Prior art keywords
- lithium
- positive plate
- ion battery
- solution
- lial
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Links
- 229910003002 lithium salt Inorganic materials 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 33
- 159000000002 lithium salts Chemical class 0.000 title claims abstract description 32
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 26
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 52
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910010199 LiAl Inorganic materials 0.000 claims abstract description 18
- 238000005406 washing Methods 0.000 claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002253 acid Substances 0.000 claims abstract description 9
- 239000010941 cobalt Substances 0.000 claims abstract description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 3
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- 229910017052 cobalt Inorganic materials 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 6
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 239000011777 magnesium Substances 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 150000001455 metallic ions Chemical class 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 22
- 238000011084 recovery Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000011572 manganese Substances 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- 229910001429 cobalt ion Inorganic materials 0.000 abstract 1
- 239000012043 crude product Substances 0.000 abstract 1
- 229910001437 manganese ion Inorganic materials 0.000 abstract 1
- 229910001453 nickel ion Inorganic materials 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 10
- 229910021645 metal ion Inorganic materials 0.000 description 8
- 239000011230 binding agent Substances 0.000 description 5
- 239000006258 conductive agent Substances 0.000 description 5
- 229910017709 Ni Co Inorganic materials 0.000 description 4
- 238000013019 agitation Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 2
- 229910052808 lithium carbonate Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 positive electrode Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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 relates to the fields of chemistry and chemical industry, provides a method for preparing a lithium salt from a positive plate of a lithium-ion battery, and aims at achieving popularization of a technology for recovering lithium from a spent lithium-ion battery and a waste pole plate and mass production. The method comprises the following steps: (1) crushing the positive plate of the lithium-ion battery with a crusher, dissolving the positive plate with acid of a certain concentration , and filtering the positive plate to obtain a solution containing a lithium metal; (2) adjusting the pH value with a hydroxide solution, and precipitating nickel, cobalt, manganese and magnesium ions in the solution with hydroxide; (3) obtaining a metal solution which only contains lithium by filtering and washing manners; (4) adjusting the pH value of the metal solution containing the lithium with sulfate and carbonate; (5) crystallizing the lithium at a proper temperature to obtain a LiAl<3>(SO<4>)<2>(OH)<6>and LiAl<3>(CO<3>)<2>(OH)<6> composite lithium salt; and (6) washing, filtering and drying a crude product of the lithium salt, so as to obtain a clean lithium salt product. The purity of the composite lithium salt product prepared by the method provided by the invention reaches over 98.0%; the primary recovery rate of the lithium is 80%-95%; and the composite lithium salt product has relatively high economic benefits.
Description
Technical field
The present invention relates to chemistry and Chemical Engineering Technology resource circulation utilization field, particularly a kind of method utilizing based lithium-ion battery positive plate to prepare lithium salts.
Background technology
Along with the development of communications industry, ev industry and digital product industry, the demand of people to battery increases day by day, and power, energy-storage battery arise at the historic moment.Country is releasing the investigation and application that many policies encourage large-sized battery, can predict in the near future, can produce a large amount of battery requirements; In the process of producing battery, produce the fraction defective of about 10%, calculate by the consumption of the anode material for lithium-ion batteries of annual 60000 tons, will the recyclable amount of 6000 tons be had every year; And battery uses all regular life-span, after battery stops, can disenabling stage be entered, can estimate a large amount of for generation old and useless battery with the growth rate of current battery; Therefore the based lithium-ion battery positive plate of these two aspects has a large amount of sources.Because based lithium-ion battery positive plate contains a large amount of noble metal, rare element, not only soil and water resources is harmful to, and there is abundant metals resources Development volue, so should not process as common house refuse, best processing mode is that circulating resourcesization utilizes.Within 2014, the end of to, the lithium ion battery that only China is discarded just has 200,000 tons, reaches more than 8000 tons in these old and useless batterys containing lithium according to statistics.The harm existed due to old and useless battery self and the value self being rich in non-ferrous metal receive the concern of more and more people, the recovery industrialization of the valuable metal cobalt in lithium ion battery, nickel and manganese, but in lithium ion battery, the recovery of lithium there is no successfully the case of industrialization due to technology and Cost Problems.
At present, the product of locating in the technique of lithium that reclaims from lithium ion battery reported is commonly lithium carbonate, reclaims technique that lithium prepares lithium carbonate and has that place demand is large, energy consumption high, causes that whole set process scheme efficiency is low, cost is high, economic benefit is not remarkable, and industrialization value is little.The present invention does not need through the process such as abstraction impurity removal, condensing crystallizing, as long as in acid-soluble and direct sinker, washing, drying after chemical subtraction, the complex lithium product salt that content reaches more than 98% can be obtained, technique simple Neng Mao is low, cost is low, has higher surcharge, is suitable for extensive industrialization.
Summary of the invention
The object of the invention is, in order to overcome above-mentioned technical problem, to provide a kind of method utilizing based lithium-ion battery positive plate to prepare lithium salts, realizing popularization and the large-scale production of in waste and old lithium ion battery and waste pole piece, reclaiming lithium technology.
Technical problem of the present invention is solved mainly through following technical proposals:
Utilize based lithium-ion battery positive plate to prepare a method for lithium salts, it is characterized in that, comprise the following steps:
(1) by based lithium-ion battery positive plate crusher in crushing, use certain density acid dissolve, filter the solution obtained containing lithium metal;
(2) use hydroxide solution adjust ph, with hydroxide, the nickel in solution, cobalt, manganese, magnesium ion are precipitated out;
(3) obtain only containing the metallic solution of lithium by filtration washing;
(4) the metallic solution pH value containing lithium is regulated with sulfate and carbonate;
(5) at a suitable temperature lithium is crystallized out, obtain LiAl
3(SO
4)
2(OH)
6and LiAl
3(CO
3)
2(OH)
6compound lithium salts;
(6) by the washing of thick for lithium salts product, filter, dryly must obtain pure lithium salts product.
Further, described step (1) acid solution is one or more mixed acid in sulfuric acid, hydrochloric acid, nitric acid, and the concentration of acid is 3-10 mol/L.
Further, described step (2) described hydroxide is one or more in NaOH, potassium hydroxide, and pH controls between 9.0 ~ 11.0, by nickel, cobalt, manganese, magnesium precipitation by metallic ion out.
Further, one or more in described step (4) middle sodium carbonate, calcium carbonate and sodium sulphate, calcium sulfate regulate the pH of solution to 0.5 ~ 5.0.
Further, the metallic solution temperature containing lithium controls at 60-98 DEG C by described step (5), utilizes crystallization control method to stir 6 ~ 12 hours, obtains LiAl
3(SO
4)
2(OH)
6and LiAl
3(CO
3)
2(OH)
6compound lithium salts.
Utilize the inventive method gained complex lithium product salt purity to reach more than 98.0%, lithium primary recovery is 80 ~ 95%, and the inventive method process is simple, and cost is low, is easy to suitability for industrialized production, has higher economic benefit.Because based lithium-ion battery positive plate is made up of on aluminium foil Material coating such as positive electrode, conductive agent, binding agents.Adopt method of the present invention to reclaim lithium from waste and old lithium ion battery and waste pole piece, there is following beneficial effect: 1) recovery process is simple, cost is low, there is considerable economic worth; 2) lithium primary recovery is high, reaches 80 ~ 95%; Effective 3) comprehensive cyclic utilization achieving waste and old lithium ion battery valuable constituent reclaims, and avoids the pollution of lithium to environment.4) the compound lithium salts utilizing this patent to prepare, can prepare any lithium product material again.
Embodiment
Below technical scheme of the present invention is described in further detail.
Embodiment 1:
Get 5kg to give up lithium cobaltate cathode sheet, use impeller rotation-type crusher in crushing, broken thing is put into and dissolves in bucket, in dissolving bucket, add 3 mol/L sulfuric acid solutions, until broken thing can not dissolve, keep temperature to be about 55 DEG C again; Filter, washing filter residue obtains Multicomponent metal ion solution and not by the conductive agent, the binding agent that dissolve.In Multicomponent metal ion solution, add NaOH, remain on 50 DEG C, pH value is under the condition of 9, Keep agitation, filters the metallic solution obtained containing lithium after reaction 6.0h; Regulate the pH of solution to 0.5 to containing in the metallic solution of lithium with adding sodium carbonate and sodium sulphate, and the metallic solution temperature containing lithium is controlled at 60 DEG C, utilize crystallization control method to stir 6 hours, obtain LiAl
3(SO
4)
2(OH)
6and LiAl
3(CO
3)
2(OH)
6compound lithium salts, by the washing of thick for lithium salts product, filters, dryly must obtain pure complex lithium product salt.
The composition of complex lithium product salt is as shown in table 1:
Table 1
| Element | Li | Al | Ni | Co | Mn |
| Content | 1.9％ | 22.6％ | 0.001％ | 0.001％ | 0.009％ |
Embodiment 2:
Get 5kg to give up lithium cobaltate cathode sheet, use impeller rotation-type crusher in crushing, broken thing is put into and dissolves in bucket, in dissolving bucket, add 5 mol/L sulfuric acid solutions, until broken thing can not dissolve, keep temperature to be about 55 DEG C again; Filter, washing filter residue obtains Multicomponent metal ion solution and not by the conductive agent, the binding agent that dissolve.In Multicomponent metal ion solution, add NaOH, remain on 50 DEG C, pH value is under the condition of 10, Keep agitation, filters the metallic solution obtained containing lithium after reaction 6.0h; Regulate the pH of solution to 2 to containing in the metallic solution of lithium with adding calcium carbonate and sodium sulphate, and the metallic solution temperature containing lithium is controlled at 80 DEG C, utilize crystallization control method to stir 8 hours, obtain LiAl
3(SO
4)
2(OH)
6and LiAl
3(CO
3)
2(OH)
6compound lithium salts, by the washing of thick for lithium salts product, filters, dryly must obtain pure complex lithium product salt.
The composition of complex lithium product salt is as shown in table 2:
Table 2
| Element | Li | Al | Ni | Co | Mn |
| Content | 2.09％ | 23.6％ | 0.0009％ | 0.005％ | 0.006％ |
Embodiment 3:
Get 5kg to give up lithium cobaltate cathode sheet, use impeller rotation-type crusher in crushing, broken thing is put into and dissolves in bucket, in dissolving bucket, add 8 mol/L hydrochloric acid solutions, until broken thing can not dissolve, keep temperature to be about 55 DEG C again; Filter, washing filter residue obtains Multicomponent metal ion solution and not by the conductive agent, the binding agent that dissolve.In Multicomponent metal ion solution, add NaOH, remain on 50 DEG C, pH value is under the condition of 10.5, Keep agitation, filters the metallic solution obtained containing lithium after reaction 6.0h; Regulate the pH of solution to 3.5 to containing in the metallic solution of lithium with adding sodium carbonate and sodium sulphate, and the metallic solution temperature containing lithium is controlled at 90 DEG C, utilize crystallization control method to stir 10 hours, obtain LiAl
3(SO
4)
2(OH)
6and LiAl
3(CO
3)
2(OH)
6compound lithium salts, by the washing of thick for lithium salts product, filters, dryly must obtain pure complex lithium product salt.
The composition of complex lithium product salt is as shown in table 3:
Table 3
| Element | Li | Al | Ni | Co | Mn |
| Content | 2.19％ | 23.6％ | 0.0008％ | 0.004％ | 0.005％ |
Embodiment 4:
Get 5kg to give up lithium cobaltate cathode sheet, use impeller rotation-type crusher in crushing, broken thing is put into and dissolves in bucket, in dissolving bucket, add 10 mol/L sulfuric acid solutions, until broken thing can not dissolve, keep temperature to be about 55 DEG C again; Filter, washing filter residue obtains Multicomponent metal ion solution and not by the conductive agent, the binding agent that dissolve.In Multicomponent metal ion solution, add potassium hydroxide, remain on 50 DEG C, pH value is under the condition of 11, Keep agitation, filters the metallic solution obtained containing lithium after reaction 6.0h; Regulate the pH of solution to 5 to containing in the metallic solution of lithium with adding sodium carbonate and calcium sulfate, and the metallic solution temperature containing lithium is controlled at 98 DEG C, utilize crystallization control method to stir 12 hours, obtain LiAl
3(SO
4)
2(OH)
6and LiAl
3(CO
3)
2(OH)
6compound lithium salts, by the washing of thick for lithium salts product, filters, dryly must obtain pure complex lithium product salt.
The composition of complex lithium product salt is as shown in table 4:
Table 4
| Element | Li | Al | Ni | Co | Mn |
| Content | 2.18％ | 24.1％ | 0.0009％ | 0.003％ | 0.004％ |
After the process of the present embodiment method, waste water, containing cobalt≤0.8mg/l, is less than the discharge index of 1.0mg/l containing cobalt.
The present embodiment is the execution mode of example of the present invention; for those skilled in the art; on the basis that the invention discloses application process and principle; be easy to make various types of improvement or distortion; and the structure be not limited only to described by the above-mentioned embodiment of the present invention, therefore previously described mode is preferred version, and does not have restrictive meaning; every equivalence done according to the present invention changes and amendment, all in the scope protection range of claims of the present invention.
Claims (5)
1. utilize based lithium-ion battery positive plate to prepare a method for lithium salts, it is characterized in that, comprise the following steps:
(1) by based lithium-ion battery positive plate crusher in crushing, use certain density acid dissolve, filter the solution obtained containing lithium metal;
(2) use hydroxide solution adjust ph, with hydroxide, the nickel in solution, cobalt, manganese, magnesium ion are precipitated out;
(3) obtain only containing the metallic solution of lithium by filtration washing;
(4) the metallic solution pH value containing lithium is regulated with sulfate and carbonate;
(5) at a suitable temperature lithium is crystallized out, obtain LiAl
3(SO
4)
2(OH)
6and LiAl
3(CO
3)
2(OH)
6compound lithium salts;
(6) by the washing of thick for lithium salts product, filter, dryly must obtain pure lithium salts product.
2. the method utilizing based lithium-ion battery positive plate to prepare lithium salts according to claim 1, is characterized in that: described step (1) acid solution is one or more mixed acid in sulfuric acid, hydrochloric acid, nitric acid, and the concentration of acid is 3-10 mol/L.
3. the method utilizing based lithium-ion battery positive plate to prepare lithium salts according to claim 1, it is characterized in that: described step (2) described hydroxide is one or more in NaOH, potassium hydroxide, pH controls between 9.0 ~ 11.0, by nickel, cobalt, manganese, magnesium precipitation by metallic ion out.
4. the method utilizing based lithium-ion battery positive plate to prepare lithium salts according to claim 1, is characterized in that: one or more in described step (4) middle sodium carbonate, calcium carbonate and sodium sulphate, calcium sulfate regulate the pH of solution to 0.5 ~ 5.0.
5. the method utilizing based lithium-ion battery positive plate to prepare lithium salts according to claim 1, it is characterized in that: the metallic solution temperature containing lithium controls at 60-98 DEG C by described step (5), utilize crystallization control method to stir 6 ~ 12 hours, obtain LiAl
3(SO
4)
2(OH)
6and LiAl
3(CO
3)
2(OH)
6compound lithium salts.
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|---|---|---|---|
| CN201510574765.0A CN105244562B (en) | 2015-09-11 | 2015-09-11 | A kind of method that lithium salts is prepared using based lithium-ion battery positive plate |
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|---|---|---|---|
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| CN105244562B CN105244562B (en) | 2017-12-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550941A (en) * | 2018-05-18 | 2018-09-18 | 昆明理工大学 | A method of recycling the lithium foil that gives up in expired useless medicine complex ferrous sulfate preparation and old lithium pond |
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|---|---|---|---|---|
| CN102088124A (en) * | 2010-12-24 | 2011-06-08 | 佛山市邦普循环科技有限公司 | High-purity polymetallic-element solid mixed salt and preparation method and application thereof |
| 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 |
| CN104241724A (en) * | 2014-09-02 | 2014-12-24 | 湖南邦普循环科技有限公司 | Method for preparing battery-grade lithium carbonate from recycled lithium ion battery material |
-
2015
- 2015-09-11 CN CN201510574765.0A patent/CN105244562B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088124A (en) * | 2010-12-24 | 2011-06-08 | 佛山市邦普循环科技有限公司 | High-purity polymetallic-element solid mixed salt and preparation method and application thereof |
| 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 |
| CN104241724A (en) * | 2014-09-02 | 2014-12-24 | 湖南邦普循环科技有限公司 | Method for preparing battery-grade lithium carbonate from recycled lithium ion battery material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550941A (en) * | 2018-05-18 | 2018-09-18 | 昆明理工大学 | A method of recycling the lithium foil that gives up in expired useless medicine complex ferrous sulfate preparation and old lithium pond |
| CN108550941B (en) * | 2018-05-18 | 2020-02-07 | 昆明理工大学 | Method for recycling expired waste medicine compound ferrous sulfate preparation and waste lithium foil in old lithium battery |
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| Publication number | Publication date |
|---|---|
| CN105244562B (en) | 2017-12-01 |
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Denomination of invention: A method for preparing lithium salts using positive electrode plates of lithium-ion batteries Granted publication date: 20171201 Pledgee: Jiangxi Chongyi Rural Commercial Bank Co.,Ltd. Pledgor: Ganzhou Lidao new energy Co.,Ltd. Registration number: Y2024980003438 |