CN107732352A - A kind of method that used Li ion cell positive electrode recycles - Google Patents

A kind of method that used Li ion cell positive electrode recycles Download PDF

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Publication number
CN107732352A
CN107732352A CN201710946150.5A CN201710946150A CN107732352A CN 107732352 A CN107732352 A CN 107732352A CN 201710946150 A CN201710946150 A CN 201710946150A CN 107732352 A CN107732352 A CN 107732352A
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positive electrode
recycles
cell positive
steps
cobalt
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蔡世德
呼义坤
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Nantong Xinwei Nickel&cobalt Hightech Development Co Ltd
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Nantong Xinwei Nickel&cobalt Hightech Development Co Ltd
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Priority to CN201710946150.5A priority Critical patent/CN107732352A/en
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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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0407—Leaching processes
    • C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
    • C22B23/043—Sulfurated acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/10—Obtaining alkali metals
    • C22B26/12—Obtaining lithium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B47/00—Obtaining manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006—Wet processes
    • C22B7/007—Wet processes by acid leaching
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • 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 kind of method that used Li ion cell positive electrode recycles, including crushing, sulfate reduction leaching and sodium hydroxide pellets step；The present invention is leached and sieved process using sulfate reduction, obtain containing Co, Ni, Mn, Li metal ion solutions and aluminium foil powder, realize anode material for lithium-ion batteries (cobalt aluminium-foil paper) raw material separation Co, Ni, the separation of Mn and Al metals, again the higher lithium-containing solution and nickel of purity is respectively obtained by sodium hydroxide pellets, cobalt, manganese hydroxide product, simplify the metal process for separating and recovering flow from used Li ion positive electrode, midway will not produce inflammable and explosive hydrogen, solid slag (sodium metaaluminate) is not contained, it is finally reflected simultaneously and terminates solution ph in alkalescence, simplify technological process simultaneously, it is and simple to operate, cost is relatively low, improve economic benefit, it is worth of widely use.

Description

A kind of method that used Li ion cell positive electrode recycles
Technical field
The invention belongs to power and energy-storage battery waste recovery to utilize technical field, more specifically, more particularly to it is a kind of Used Li ion cell positive electrode (cobalt aluminium-foil paper) recovery nickel, cobalt, manganese, aluminium, the method for lithium metal separation.
Background technology
Power lithium-ion battery is mainly used in electric automobile, electric bicycle, electric tool and national defence weapon equipment In the lithium ion battery of the equipment such as system and product.Due to the continuous improvement of environmental requirement in global range, dynamic lithium battery Using also more and more extensive, the market demand is huge, as new-energy automobile is constantly developed popularization, power in more countries Battery Market brings explosive growth, is shown according to China Automotive Technology ＆ Research Center's research, 2015, the accumulative report of electrokinetic cell Useless amount is about at 2~40,000 tons or so, and to before and after the year two thousand twenty, only pure electronic (containing the plug-in) passenger car in China and hybrid power are riding Car electrokinetic cell adds up the scale that learies are up to 12~170,000 tons.Because anode material for lithium-ion batteries (cobalt aluminium-foil paper) is planted Class is a lot, such as；Have and form cell positive material containing the high cobalt acid lithium of cobalt and the ternary material for there are the synthesis such as nickeliferous, cobalt, manganese；And The more typical useless cobalt acid lithium raw material of existing market and positive powder, its analysis result Co contents are 14-44.26%, Ni, Mn, Al's Content is respectively 2-28%, 2-9% and 6-8%, and Li contents are 5-7% in addition, other metals Fe, Cu, Zn, Ca, Mg, Pb content All very low, conventional recovery process has；Battery waste crushing → leaching with sodium hydroxide → heavy aluminium separation cobalt, manganese, nickel → sulfuric acid or Salt Ore Leaching → chemical subtraction → rear liquid P204 extract and separates manganese → P507 extract and separates cobalt, nickel lithium → extraction extraction raffinate separating Li and Nickel.
The shortcomings that technique is：The metals such as the separation of anode material for lithium-ion batteries (cobalt aluminium-foil paper) raw material Co, Ni, Mn, Al During technological process, a large amount of hazardous gases (hydrogen) generation will be produced when using leaching with sodium hydroxide process, brings danger Source, if processing is not only, blast, the generation of fire safety evaluating accident are easily caused, and heavy aluminium process produces substantial amounts of solid and given up Slag (sodium metaaluminate) and mother liquor containing hydrochloric acid give enterprise's increase processing cost, processing technological flow length.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of used Li ion cell proposed is just The method of pole MAT'L recycling.
To achieve the above object, the present invention provides following technical scheme：
A kind of method that used Li ion cell positive electrode recycles, comprises the following steps：
S1：Crush, anode material for lithium-ion batteries (cobalt aluminium-foil paper) raw material input pulverizer is crushed, by vibration 50-60 mesh powders are obtained after sieve screening；
S2：Sulfate reduction is leached, and is obtained after crushing and screening in powder and water input leaching tanks, is added a certain amount of reduction Agent, a certain amount of inorganic acid Controlled acidity is controlled, and heat and reacted, sieved, soaked by vibratory sieve after the completion of reaction Go out solution and aluminium foil powder, filtered and washed respectively, obtain clean infusion solution and aluminium foil；
S3：Sodium hydroxide pellets, add in infusion solution after filtration sodium hydroxide occur with nickel, cobalt, manganese ion it is anti- Should, nickel, cobalt, manganese salt precipitation are formed, rapid filtration, is passed through so that lithium enters in floccule with mother liquor and other separation of metal ions After filter press filtering, the higher lithium solution of purity and nickel, cobalt, manganese hydroxide product are obtained.
Preferably, that is mentioned in the S1 steps puts into raw material in pulverizer, using by raw material with 15- 30kg/min speed is crushed by oscillating feeder into pulverizer.
Preferably, the mesh aperture for the vibration sieve plate mentioned in the S1 steps is 50-60 mesh.
Preferably, the reducing agent mentioned in the S2 steps is sodium sulfite or sodium pyrosulfite.
Preferably, the inorganic salts mentioned in the S2 steps are sulfuric acid or hydrochloric acid.
Preferably, the pH scopes for the Controlled acidity mentioned in the S2 steps are 1-1.5.
Preferably, the sieve plate mesh aperture for the Vibration Screen timesharing mentioned in the S2 steps is 250-300 mesh.
Preferably, the Leach reaction equation mentioned in the S2 steps is：
2NiO2+2H2SO4=2NiSO4+2H2O
Co2O3+Na2SO3+2H2SO4=2CoSO4+2H2O+Na2SO4
LiO2+2H2SO4=Li (SO4)2+2H2O
MnO2+Na2SO3+H2SO4=MnSO4+Na2SO4+H2O。
Preferably, it is 5-8 hours the time required to the heating reaction mentioned in the S2 steps.
Preferably, the sodium hydroxide pellets reaction equation mentioned in the S3 steps is：
CoSO4+ 2NaOH=Co (OH)2↓+Na2SO4
NiSO4+ 2NaOH=Ni (OH)2↓+Na2SO4
MnSO4+ 2NaOH=Mn (OH)2↓+Na2SO4。
Preferably, the sodium hydroxide mentioned in the S3 steps and nickel, cobalt, manganese ion react needed for the reaction time be 3-4 hours.
Preferably, it is 8.5-9.5 that reaction solution, which controls terminal acidity pH scopes, in the S3 steps.
The technique effect and advantage of the present invention：The present invention using sulfate reduction leach and sieve process, obtain containing Co, Ni, Mn, Li metal ion solution and aluminium foil powder, realize the separation of anode material for lithium-ion batteries (cobalt aluminium-foil paper) raw material Co, Ni, Mn With the separation of Al metals, then by sodium hydroxide pellets the higher lithium-containing solution of purity and nickel, cobalt, manganese hydroxide are respectively obtained Product, the metal process for separating and recovering flow from used Li ion positive electrode is simplified, inflammable and explosive hydrogen will not be produced halfway Gas, solid slag (sodium metaaluminate) is not contained, while be finally reflected and terminate solution ph in alkalescence, while simplify technique stream Journey, and it is simple to operate, and cost is relatively low, improves economic benefit, is worth of widely use.
Brief description of the drawings
Fig. 1 is a kind of technological process of used Li ion cell positive electrode (cobalt aluminium-foil paper) recoverying and utilizing method of the present invention Figure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Herein Described specific embodiment only to explain the present invention, is not intended to limit the present invention.Based on the embodiment in the present invention, The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this hair The scope of bright protection.
As shown in figure 1, the present invention provides a kind of method that used Li ion cell positive electrode recycles, including following step Suddenly：
1) pulverising step：Raw material is crushed with 15-30kg/min speed by oscillating feeder into pulverizer, Again after vibratory sieve (mesh size 50-60 mesh) screening, granularity 50-60 mesh powders are obtained, the reaction principle of the process is, The thinner material of particle can be obtained after crushing and screening, fully meets granularity requirements during sulfuric acid leaching；
2) leaching step：The powder obtained after crushing and screening, keep liquid：=Gu (8-10)：In 1 input leaching tanks, press Addition 800-1000kg per ton reducing agent (sodium sulfite or sodium pyrosulfite), sulfuric acid control sour pH=1-1.5 eventually is added, is added Temperature carry out react 5-8 hours, after the completion of reaction by vibratory sieve (mesh size 250-300 mesh) sieve, obtain infusion solution with Aluminium foil separates；Filtered and washed respectively again, obtained aluminium foil is fed directly to the purification of electrolytic aluminium process, and the solution after filtering adds Enter next procedure, Leach reaction equation：
2NiO2+2H2SO4=2NiSO4+2H2O
Co2O3+Na2SO3+2H2SO4=2CoSO4+2H2O+Na2SO4
LiO2+2H2SO4=Li (SO4)2+2H2O
MnO2+Na2SO3+H2SO4=MnSO4+Na2SO4+H2O；
3) sodium hydroxide pellets step：Sodium hydroxide is added in infusion solution after filtration with nickel, cobalt and manganese to occur Reaction, hour in reaction time 3-4, control terminal acidity pH=8.5-9.5 form hydroxide precipitation, run through filter press mistake Filter, so that lithium obtains the high lithium-containing solution of purity and be sent into lithium carbonate production system in floccule and nickel, cobalt, manganese hydroxide precipitation System purification, nickel, cobalt, manganese hydroxide provide nickel, cobalt, manganese ternary raw material, sodium hydroxide pellets for the positive material production system of battery Reaction equation：
CoSO4+ 2NaOH=Co (OH)2↓+Na2SO4
NiSO4+ 2NaOH=Ni (OH)2↓+Na2SO4
MnSO4+ 2NaOH=Mn (OH)2↓+Na2SO4。
The specific implementation process of the present invention, case study on implementation raw material average out to are further illustrated below by way of several embodiments Useless (cobalt aluminium-foil paper) raw material, its analysis result Co44.26%, Ni2.08%, Mn9.05%, A8.73%l, Li contain 5.86%, its His metal Fe, Cu, Zn, Ca, Mg, Pb content is all very low.
Embodiment 1
1) pulverising step：Raw material is crushed with 20kg/min speed by oscillating feeder into pulverizer, then After vibratory sieve (mesh size is 50 mesh) screening, the mesh powder of granularity 50 is obtained, tenor does not change among powder.
2) leaching step：The cobalt slag and water that will be obtained after washing, keep liquid：Gu=8：In 1 input leaching tanks, by cobalt per ton Slag adds 800kg reducing agent (sodium sulfite), adds sulfuric acid 1000kg controls sour PH=1 eventually, and heating carries out reaction 4 hours, Sieved after the completion of reaction by vibratory sieve (mesh of mesh size 250), obtain infusion solution and separated with aluminium foil；It is as follows to leach result：
After obtained aluminium foil is washed with clear water again, its constituent content Al87.5%, Co, Ni, Mn, Li contain 0.3%, directly The purification of electrolytic aluminium process is delivered to, the solution after filtering adds next procedure.
3) sodium hydroxide pellets step：Sodium hydroxide is added in infusion solution after filtration with nickel, cobalt and manganese to occur Reaction, control the 30 minutes acidity pH=8.5 reaction time of terminal, run through filter press filtering so that lithium in floccule and nickel, Cobalt, manganese hydroxide precipitation, obtain the high mother liquor containing lithium of purity and be sent into the purification of lithium carbonate production system, nickel, cobalt, manganese hydroxide Nickel, cobalt, manganese ternary raw material are provided for the positive material production system of battery；Precipitation result is as follows：
Element Leachate (g/L) Precipitation slag (%) Mother liquor (g/L) Rate of deposition (%)
Ni 2.4 3.6 0.003 99.8
Co 28.7 43.0 0.002 99.9
Mn 5.8 8.7 0.001 99.9
Li 5.5 0.002 3.6 0.01
Embodiment 2
1) pulverising step：Raw material is crushed with 25kg/min speed by oscillating feeder into pulverizer, then After vibratory sieve (mesh size is 55 mesh) screening, the mesh powder of granularity 55 is obtained, tenor does not change among powder.
2) leaching step：The cobalt slag and water that will be obtained after washing, keep liquid：Gu=8.5：In 1 input leaching tanks, by per ton Cobalt slag adds 850kg reducing agent (sodium pyrosulfite), adds sulfuric acid 1100kg controls sour PH=1 eventually, and heating carries out reaction 4.5 Hour, sieved after the completion of reaction by vibratory sieve (mesh size is 250 mesh), obtain infusion solution and separated with aluminium foil；Leach knot Fruit is as follows：
After obtained aluminium foil is washed with clear water again, its constituent content Al88.4%, Co, Ni, Mn, Li contain 0.4%, directly The purification of electrolytic aluminium process is delivered to, the solution after filtering adds next procedure.
3) sodium hydroxide pellets step；Sodium hydroxide is added in infusion solution after filtration with nickel, cobalt and manganese to occur Reaction, control the 35 minutes acidity PH=8.8 reaction time of terminal, run through filter press filtering so that lithium in floccule and nickel, Cobalt, manganese hydroxide precipitation, obtain the high mother liquor containing lithium of purity and be sent into the purification of lithium carbonate production system, nickel, cobalt, manganese hydroxide Nickel, cobalt, manganese ternary raw material are provided for the positive material production system of battery；Precipitation result is as follows：
Element Leachate (g/L) Precipitation slag (%) Mother liquor (g/L) Rate of deposition (%)
Ni 2.4 2.9 0.003 99
Co 28.7 42.5. 0.002 99
Mn 5.8 9 0.001 99
Li 5.5 0.09 3.8 0.02
Embodiment 3
1) pulverising step：Raw material is crushed with 28kg/min speed by oscillating feeder into pulverizer, then After vibratory sieve (mesh size is 60 mesh) screening, the mesh powder of granularity 60 is obtained, tenor does not change among powder.
2) leaching step：The cobalt slag and water that will be obtained after washing, keep liquid：Gu=9：In 1 input leaching tanks, by cobalt per ton Slag adds 900kg reducing agent (sodium sulfite), adds sulfuric acid 1150kg controls sour PH=1 eventually, and heating carries out reaction 5 hours, Sieved after the completion of reaction by vibratory sieve (mesh size is 300 mesh), obtain infusion solution and separated with aluminium foil；Leach result such as Under；
After obtained aluminium foil is washed with clear water again, its constituent content Al89%, Co, Ni, Mn, Li contain 0.2%, directly send Purified to electrolytic aluminium process, the solution after filtering adds next procedure.
3) sodium hydroxide pellets step；Sodium hydroxide is added in infusion solution after filtration with nickel, cobalt and manganese to occur Reaction, control the 40 minutes acidity PH=9 reaction time of terminal, run through filter press filtering so that lithium in floccule and nickel, Cobalt, manganese hydroxide precipitation, obtain the high mother liquor containing lithium of purity and be sent into the purification of lithium carbonate production system, nickel, cobalt, manganese hydroxide Nickel, cobalt, manganese ternary raw material are provided for the positive material production system of battery.
Precipitation result is as follows：
In summary：The present invention is leached and sieved process using sulfate reduction, and it is molten to obtain the metal ion containing Co, Ni, Mn, Li Liquid and aluminium foil powder, the separation of anode material for lithium-ion batteries (cobalt aluminium-foil paper) raw material separation Co, Ni, Mn and Al metal is realized, The higher lithium-containing solution of purity and nickel, cobalt, manganese hydroxide product are respectively obtained by sodium hydroxide pellets again, is simplified from useless Metal process for separating and recovering flow in lithium ion anode material, will not produce inflammable and explosive hydrogen halfway, do not contain solid and give up Slag (sodium metaaluminate), while be finally reflected and terminate solution ph in alkalescence, while technological process is simplified, and it is simple to operate, Cost is relatively low, improves economic benefit, is worth of widely use.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic, Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's Within protection domain.

Claims (12)

1. a kind of method that used Li ion cell positive electrode recycles, it is characterised in that：Comprise the following steps：
S1：Crush, anode material for lithium-ion batteries (cobalt aluminium-foil paper) raw material input pulverizer is crushed, by Vibration Screen 50-60 mesh powders are obtained after point；
S2：Sulfate reduction is leached, and is obtained after crushing and screening in powder and water input leaching tanks, is added a certain amount of reducing agent, A certain amount of inorganic acid Controlled acidity is controlled, and heats and is reacted, is sieved after the completion of reaction by vibratory sieve, it is molten to obtain leaching Liquid and aluminium foil powder, are filtered and are washed respectively, obtain clean infusion solution and aluminium foil；
S3：Sodium hydroxide pellets, sodium hydroxide is added in infusion solution after filtration and is reacted with nickel, cobalt, manganese ion, shape Into nickel, cobalt, manganese salt precipitation, rapid filtration, so that lithium enters in floccule passes through press filtration with mother liquor and other separation of metal ions After machine filtering, the higher lithium solution of purity and nickel, cobalt, manganese hydroxide product are obtained.
2. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that：Institute State mentioned in S1 steps put into raw material in pulverizer, using by raw material with 15-30kg/min speed by shaking Dynamic batcher is crushed into pulverizer.
3. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that：Institute The mesh aperture for stating the vibration sieve plate mentioned in S1 steps is 50-60 mesh.
4. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that：Institute It is sodium sulfite or sodium pyrosulfite to state the reducing agent mentioned in S2 steps.
5. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that：Institute It is sulfuric acid or hydrochloric acid to state the inorganic salts mentioned in S2 steps.
6. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that：Institute The pH scopes for stating the Controlled acidity mentioned in S2 steps are 1-1.5.
7. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that：Institute The sieve plate mesh aperture for stating the Vibration Screen timesharing mentioned in S2 steps is 250-300 mesh.
8. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that：Institute Stating the Leach reaction equation mentioned in S2 steps is：
2NiO2+2H2SO4=2NiSO4+2H2O
Co2O3+Na2SO3+2H2SO4=2CoSO4+2H2O+Na2SO4
LiO2+2H2SO4=Li (SO4)2+2H2O
MnO2+Na2SO3+H2SO4=MnSO4+Na2SO4+H2O。
9. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that：Institute It it is 5-8 hours the time required to stating the heating reaction mentioned in S2 steps.
10. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that： The sodium hydroxide pellets reaction equation mentioned in the S3 steps is：
CoSO4+ 2NaOH=Co (OH)2↓+Na2SO4
NiSO4+ 2NaOH=Ni (OH)2↓+Na2SO4
MnSO4+ 2NaOH=Mn (OH)2↓+Na2SO4。
11. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that： The sodium hydroxide mentioned in the S3 steps and nickel, cobalt, manganese ion react needed for the reaction time be 3-4 hours.
12. the method that a kind of used Li ion cell positive electrode according to claim 1 recycles, it is characterised in that： It is 8.5-9.5 that reaction solution, which controls terminal acidity pH scopes, in the S3 steps.
CN201710946150.5A 2017-10-12 2017-10-12 A kind of method that used Li ion cell positive electrode recycles Pending CN107732352A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109439904A (en) * 2018-09-20 2019-03-08 广东佳纳能源科技有限公司 A method of the leaching valuable metal from waste lithium cell positive electrode
CN109706320A (en) * 2019-01-29 2019-05-03 东北大学 A kind of method that ethyl alcohol is Co and Li in the useless lithium battery of reducing agent hydrometallurgic recovery
CN110331290A (en) * 2019-07-08 2019-10-15 中南大学 The method that liquid phase method recycles lithium and transition elements in waste lithium cell positive electrode
WO2020185777A1 (en) 2019-03-14 2020-09-17 Rocher Manganese, Inc Processing of cobaltous sulphate/dithionate liquors derived from cobalt resource
CN115087622A (en) * 2020-04-23 2022-09-20 捷客斯金属株式会社 Process for producing mixed metal salt
WO2022193783A1 (en) * 2021-03-19 2022-09-22 广东邦普循环科技有限公司 Method for safe recovery of waste electrode plates of lithium ion batteries and application thereof
CN115210390A (en) * 2020-04-23 2022-10-18 捷客斯金属株式会社 Method for producing metal mixed solution and method for producing mixed metal salt

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109439904A (en) * 2018-09-20 2019-03-08 广东佳纳能源科技有限公司 A method of the leaching valuable metal from waste lithium cell positive electrode
CN109706320A (en) * 2019-01-29 2019-05-03 东北大学 A kind of method that ethyl alcohol is Co and Li in the useless lithium battery of reducing agent hydrometallurgic recovery
CN109706320B (en) * 2019-01-29 2020-03-31 东北大学 Method for recovering Co and Li in waste lithium battery by wet process by taking ethanol as reducing agent
WO2020185777A1 (en) 2019-03-14 2020-09-17 Rocher Manganese, Inc Processing of cobaltous sulphate/dithionate liquors derived from cobalt resource
CN113939941A (en) * 2019-03-14 2022-01-14 罗氏锰股份有限公司 Processing of cobalt sulfate/cobalt dithionate liquors from cobalt sources
EP3939112A4 (en) * 2019-03-14 2022-11-23 Rocher Manganese, Inc. Processing of cobaltous sulphate/dithionate liquors derived from cobalt resource
CN110331290A (en) * 2019-07-08 2019-10-15 中南大学 The method that liquid phase method recycles lithium and transition elements in waste lithium cell positive electrode
CN115087622A (en) * 2020-04-23 2022-09-20 捷客斯金属株式会社 Process for producing mixed metal salt
CN115210390A (en) * 2020-04-23 2022-10-18 捷客斯金属株式会社 Method for producing metal mixed solution and method for producing mixed metal salt
WO2022193783A1 (en) * 2021-03-19 2022-09-22 广东邦普循环科技有限公司 Method for safe recovery of waste electrode plates of lithium ion batteries and application thereof
ES2954792R1 (en) * 2021-03-19 2024-03-25 Guangdong Brunp Recycling Technology Co Ltd A METHOD FOR THE SAFE RECOVERY OF A PIECE OF WASTE ANODE FROM A LITHIUM ION BATTERY AND APPLICATION THEREOF

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