CN109439906A - A method of selective recovery separating valuable metals and aluminium foil from abandoned car power ternary battery - Google Patents

A method of selective recovery separating valuable metals and aluminium foil from abandoned car power ternary battery Download PDF

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Publication number
CN109439906A
CN109439906A CN201811381509.XA CN201811381509A CN109439906A CN 109439906 A CN109439906 A CN 109439906A CN 201811381509 A CN201811381509 A CN 201811381509A CN 109439906 A CN109439906 A CN 109439906A
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aluminium foil
car power
abandoned car
pole piece
battery
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Inventor
高桂兰
范丹丹
关杰
郭耀广
顾卫星
袁昊
戴珏
苏瑞景
罗兴民
朱秋杰
高亭
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Shanghai Polytechnic University
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Shanghai Polytechnic University
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    • 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
    • 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
    • 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
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/12—Light metals
    • C23G1/125—Light metals aluminium
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electrochemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses the methods of a kind of selective recovery separating valuable metals and aluminium foil from abandoned car power ternary battery.Method includes the following steps: by after abandoned car power ternary battery discharge, it is handled using cutting machine trimming, isolate anode pole piece, after being cut into suitable size, Leach reaction is carried out in water-bath constant temperature oscillator, obtain high-purity aluminum foil, simultaneous selection leaching valuable metal cobalt, manganese, lithium.The present invention reproducibility and selectivity special using organic acid, disposable separation aluminium foil and positive active material, the metal target leached in positive active material is maximized simultaneously, recycle high-purity aluminum foil, avoid the use of reducing agent, simplify the removal process of lithium ion cell anode waste, high efficiente callback metal has certain directive function to the industrial applications of abandoned car power ternary battery recycling processing.

Description

One kind from abandoned car power ternary battery selective recovery separating valuable metals and The method of aluminium foil
Technical field
It is the invention belongs to waste and old lithium ion battery recovery technology field, in particular to a kind of from abandoned car power ternary electricity The method of selective recovery separating valuable metals and aluminium foil in pond.
Background technique
With the shortage of global fossil resource and gradually increasing for people's environmental protection consciousness, developing new-energy automobile just It is increasingly becoming the common recognition of people, and power battery is then the important component part of new-energy automobile.Power battery is used for new energy When automobile, generally in 3~5 years, China Automotive Technology & Research Center is predicted service life according to corresponding Rejection standard, The year two thousand twenty New Energy Sources In China automobile power cell adds up learies and is up to 170,000 tons or so.In the technological direction of power battery In, nickle cobalt lithium manganate ternary and polynary positive pole material are gradually replaced with its distinctive low cost, high-performance, light the advantages that polluting Cobalt acid lithium (LiCoO2), become one of most popular positive electrode active materials of power lithium-ion battery.It is dynamic for abandoned car Power ternary battery is innoxious and the recycling and reusing of recycling becomes the hot spot currently studied both at home and abroad.
Containing there are many poisonous and harmful substance (such as lithium hexafluoro phosphate LiPF in abandoned car power ternary battery6), if not into Row correctly processing disposition, it will extremely serious pollution and harm are caused to environment and the ecosystem.Ternary anode material Material mainly includes nickle cobalt lithium manganate (NCM molecular formula: LiCoxMnyNi1-x-yO2) and nickel cobalt lithium aluminate (NCA molecular formula: LiCoxMnyAl1-x-yO2), wherein a large amount of rare noble metals contained, as Co, Ni, Mn, Li et al. will cause if dealing with improperly Heavy metal pollution, so that animals and plants health is endangered, meanwhile, and a kind of waste to resource.
The recovery process of abandoned car power ternary battery mainly includes hydrometallurgical, pyrometallurgical method and biological metallurgy Method, wherein hydrometallurgical because its process flow it is simple, low power consumption and other advantages and by wide coverage.Existing acid leaching process is soaking It usually requires to leach positive active material enrichment again before process out, aluminium foil separative efficiency is not high, and recycling step is numerous Trivial, energy consumption is higher.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide one kind from abandoned car power ternary battery The method of middle selective recovery separating valuable metals and aluminium foil.The present invention not only simplifies removal process, and solves pretreated Aluminum foil current collector and the not high problem of active material separative efficiency, realize a step of valuable metal in positive active material in journey It leaches.Removal process of the present invention is simple, and experiment reagent is single, and processing energy consumption is lower, can be recovered to the higher aluminium of purity simultaneously Foil provides a kind of new thinking for the industrial applications of abandoned car power ternary battery recycling.
The present invention directly leaches anode pole piece using reproducibility organic acids ascorbic acid, can be directly separated be recovered to compared with Pure aluminium foil.Simultaneously because the selectivity of organic acid, separation while, can also realize valuable metal in positive active material Selectively leaching.
The present invention provides a kind of selective recovery separating valuable metals from abandoned car power ternary battery and aluminium foil Method, comprising the following steps:
(1) abandoned car power ternary battery is disassembled after the electric discharge of small-sized self-control discharger, after cutting machine trimming processing It isolates
Anode pole piece；
(2) it after cutting the obtained anode pole piece of step (1), dries at a temperature of 55 ~ 65 DEG C to constant weight；
(3) anode pole piece after cutting is subjected to Leach reaction, leaching condition in water-bath constant temperature oscillator are as follows: leachate is The ascorbic acid solution of 0.5 ~ 2mol/L, solid-liquid mass volume ratio are 20 ~ 50g/L, and extraction temperature is 50 ~ 80 DEG C, extraction time For 40 ~ 60min, hunting speed is 100 ~ 150r/min；
(4) it after leaching, filters, washing, obtain aluminium foil of the purity greater than 99%, residue and contains Li+、Co2+、Mn2+、Ni2+ Acid leaching solution.
In above-mentioned steps (1), discharge after multiple abandoned car power ternary batteries are connected with mould group.
In above-mentioned steps (2), anode pole piece is cut into the size of 1.0 cm*3 of cm*1.0 cm ~ 3 cm.
In above-mentioned steps (3), leaching condition are as follows: leachate is the ascorbic acid solution of 1 ~ 1.5mol/L, solid-liquid mass body For product than being 30 ~ 40g/L, extraction temperature is 60 ~ 70 DEG C, and extraction time is 50 ~ 60min, and hunting speed is 100 ~ 150r/min.
In above-mentioned steps (4), shaking bath, which needs to cover, makes the temperature difference maintain ± 0.5 DEG C, avoids the temperature difference to leaching effect Bring influences.
In above-mentioned steps (4), washs 3-5 times, be in neutrality the pH value of cleaning solution.
Compared to the prior art, the beneficial effects of the present invention are:
The present invention takes full advantage of the selectivity of ascorbic acid, directly handles anode pole piece, with simple and easy step Abandoned car power ternary battery is recycled.Filtered aluminum foil current collector purity is higher, can directly be recycled, Co, Mn, Li in active material are nearly all leached, subsequent to be recycled by way of precipitating.It is not produced in treatment process Raw exhaust gas, environmentally friendly, experimental implementation is simple, Yi Shixian industrialization lower to equipment requirement.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing, but protection scope of the present invention is not It is only limitted to this.
Embodiment 1
It tests and uses small-sized self-control discharger, (a mould group is by 12 monolithic battery series connection groups by multiple mould groups in discharge process At) connect.When voltage is down to 3V or less, battery modules are removed, carry out single module short circuit attended operation.Then, will The dismantling of mould group carries out trimming processing to monolithic battery using abrasive wheel cutting machine and is entirely cut through with removing steel shell at monolithic battery Journey is carried out in ventilation opening.Battery inner core is taken out, manual dismantling is carried out to battery plus-negative plate and diaphragm, disassembles process in draught cupboard Interior progress.Anode pole piece is isolated after handling using cutting machine trimming；Anode pole piece is cut into the size of 1.5*1.5cm again.
Leaching experiment carries out Leach reaction in water-bath constant temperature oscillator, and reaction temperature is accurately controlled in ± 0.5 DEG C.It leaches Condition are as follows: 1.25mol/L ascorbic acid, solid-to-liquid ratio 30g/L, extraction time 60min, 70 DEG C of extraction temperature, hunting speed is 125r/min.Conical flask is taken out immediately after reaction and is filtered in the way of vacuum filtration, repeatedly washing is leached Residue and conical flask finally make the pH value of cleaning solution close to 7.0.By after washing filter residue and aluminium foil carried out in 60 DEG C of drying boxes Freeze-day with constant temperature carries out EDX test analysis for 24 hours, to the aluminium foil after drying, wherein cobalt nickel manganese elemental lithium and other impurity proportions About 0.24%, aluminium foil purity is about 99.76%, can be recycled directly as product, to filter residue carry out EDS test analysis, C, O, the weight percent of F, Al, Co, Mn, Ni are respectively 60.46%, 20.18%, 7.78%, 0.37%, 0.74%, 1.21%, 9.47%.
The implementation case can realize more thoroughly separating for aluminium foil and positive active material, and the rate of recovery of aluminium foil is 90.73%, Purity is 99.76%, and the leaching rate of Co, Li, Mn, Ni are respectively 98.84%, 95.38%, 91.62%, 59.98%.
Embodiment 2
It tests and uses small-sized self-control discharger, (a mould group is by 12 monolithic battery series connection groups by multiple mould groups in discharge process At) connect.When voltage is down to 3V or less, battery modules are removed, carry out single module short circuit attended operation.Then, will The dismantling of mould group carries out trimming processing to monolithic battery using abrasive wheel cutting machine and is entirely cut through with removing steel shell at monolithic battery Journey is carried out in ventilation opening.Battery inner core is taken out, manual dismantling is carried out to battery plus-negative plate and diaphragm, disassembles process in draught cupboard Interior progress.Anode pole piece is isolated after handling using cutting machine trimming；Anode pole piece is cut into the size of 2.5*2.5cm again.
Leaching experiment carries out Leach reaction in water-bath constant temperature oscillator, and reaction temperature is accurately controlled in ± 0.5 DEG C.It leaches Condition are as follows: 1.5mol/L ascorbic acid, solid-to-liquid ratio 30g/L, extraction time 60min, 70 DEG C of extraction temperature, hunting speed is 150r/min.Conical flask is taken out immediately after reaction and is filtered in the way of vacuum filtration, repeatedly washing is leached Residue and conical flask finally make the pH value of cleaning solution close to 7.0.By after washing filter residue and aluminium foil carried out in 60 DEG C of drying boxes Freeze-day with constant temperature carries out EDX test analysis for 24 hours, to the aluminium foil after drying, wherein cobalt nickel manganese elemental lithium and other impurity proportions About 0.13%, aluminium foil purity is about 99.87%, can be recycled directly as product, to filter residue carry out EDS test analysis, C, O, the weight percent of F, Al, Mn, Ni are respectively 56.72%, 18.74%, 13.07%, 0.42%, 2.06%, 8.99%.
The present embodiment can realize more thoroughly separating for aluminium foil and positive active material, and the rate of recovery of aluminium foil is 90.20%, pure Degree is 99.87%, and the leaching rate of Co, Li, Mn, Ni are respectively 99.91%, 95.03%, 90.71%, 62.25%.
Embodiment 3
It tests and uses small-sized self-control discharger, (a mould group is by 12 monolithic battery series connection groups by multiple mould groups in discharge process At) connect.When voltage is down to 3V or less, battery modules are removed, carry out single module short circuit attended operation.Then, will The dismantling of mould group carries out trimming processing to monolithic battery using abrasive wheel cutting machine and is entirely cut through with removing steel shell at monolithic battery Journey is carried out in ventilation opening.Battery inner core is taken out, manual dismantling is carried out to battery plus-negative plate and diaphragm, disassembles process in draught cupboard Interior progress.Anode pole piece is isolated after handling using cutting machine trimming；Anode pole piece is cut into the size of 2.0*2.0cm again.
Leaching experiment carries out Leach reaction in water-bath constant temperature oscillator, and reaction temperature is accurately controlled in ± 0.5 DEG C.It leaches Condition are as follows: 1mol/L ascorbic acid, solid-to-liquid ratio 30g/L, extraction time 60min, 70 DEG C of extraction temperature, hunting speed is 100r/min.Conical flask is taken out immediately after reaction and is filtered in the way of vacuum filtration, repeatedly washing is leached Residue and conical flask finally make the pH value of cleaning solution close to 7.0.By after washing filter residue and aluminium foil carried out in 60 DEG C of drying boxes Freeze-day with constant temperature carries out EDX test analysis for 24 hours, to the aluminium foil after drying, wherein cobalt nickel manganese elemental lithium and other impurity proportions About 0.53%, aluminium foil purity is about 99.47%, can be recycled directly as product, to filter residue carry out EDS test analysis, C, O, the weight percent of F, Al, Co, Mn, Ni be respectively 53.98%, 15.68%, 15.44%, 0.26%, 2.12%, 1.73%, 10.79%。
The present embodiment can realize more thoroughly separating for aluminium foil and positive active material, and the rate of recovery of aluminium foil is 89.96%, pure Degree is 99.47%, and the leaching rate of Co, Li, Mn, Ni are respectively 88.50%, 86.58%, 90.44%, 46.79%.
Embodiment 4
It tests and uses small-sized self-control discharger, (a mould group is by 12 monolithic battery series connection groups by multiple mould groups in discharge process At) connect.When voltage is down to 3V or less, battery modules are removed, carry out single module short circuit attended operation.Then, will The dismantling of mould group carries out trimming processing to monolithic battery using abrasive wheel cutting machine and is entirely cut through with removing steel shell at monolithic battery Journey is carried out in ventilation opening.Battery inner core is taken out, manual dismantling is carried out to battery plus-negative plate and diaphragm, disassembles process in draught cupboard Interior progress.Anode pole piece is isolated after handling using cutting machine trimming；Anode pole piece is cut into the size of 1.5*1.5cm again.
Leaching experiment carries out Leach reaction in water-bath constant temperature oscillator, and reaction temperature is accurately controlled in ± 0.5 DEG C.It leaches Condition are as follows: 1.25mol/L ascorbic acid, solid-to-liquid ratio 40g/L, extraction time 60min, 70 DEG C of extraction temperature, hunting speed is 100r/min.Conical flask is taken out immediately after reaction and is filtered in the way of vacuum filtration, repeatedly washing is leached Residue and conical flask finally make the pH value of cleaning solution close to 7.0.By after washing filter residue and aluminium foil carried out in 60 DEG C of drying boxes Freeze-day with constant temperature carries out EDX test analysis for 24 hours, to the aluminium foil after drying, wherein cobalt nickel manganese elemental lithium and other impurity proportions About 0.83%, aluminium foil purity is about 99.17%, can be recycled directly as product, to filter residue carry out EDS test analysis, C, O, the weight percent of F, Al, Co, Mn, Ni are respectively 58.57%, 8.64%, 19.13%, 0.25%, 1.26%, 2.31%, 9.84%.
The present embodiment can realize more thoroughly separating for aluminium foil and positive active material, and the rate of recovery of aluminium foil is 90.28%, pure Degree is 99.17%, and the leaching rate of Co, Li, Mn, Ni are respectively 90.19%, 85.95%, 86.36%, 51.38%.
Embodiment 5
It tests and uses small-sized self-control discharger, (a mould group is by 12 monolithic battery series connection groups by multiple mould groups in discharge process At) connect.When voltage is down to 3V or less, battery modules are removed, carry out single module short circuit attended operation.Then, will The dismantling of mould group carries out trimming processing to monolithic battery using abrasive wheel cutting machine and is entirely cut through with removing steel shell at monolithic battery Journey is carried out in ventilation opening.Battery inner core is taken out, manual dismantling is carried out to battery plus-negative plate and diaphragm, disassembles process in draught cupboard Interior progress.Anode pole piece is isolated after handling using cutting machine trimming；Anode pole piece is cut into the size of 2.5*2.5cm again.
Leaching experiment carries out Leach reaction in water-bath constant temperature oscillator, and reaction temperature is accurately controlled in ± 0.5 DEG C.It leaches Condition are as follows: 1.25mol/L ascorbic acid, solid-to-liquid ratio 30g/L, extraction time 60min, 60 DEG C of extraction temperature, hunting speed is 125r/min.Conical flask is taken out immediately after reaction and is filtered in the way of vacuum filtration, repeatedly washing is leached Residue and conical flask finally make the pH value of cleaning solution close to 7.0.By after washing filter residue and aluminium foil carried out in 60 DEG C of drying boxes Freeze-day with constant temperature carries out EDX test analysis for 24 hours, to the aluminium foil after drying, wherein cobalt nickel manganese elemental lithium and other impurity proportions About 0.76%, aluminium foil purity is about 99.24%, can be recycled directly as product, to filter residue carry out EDS test analysis, C, O, the weight percent of F, Al, Co, Mn, Ni be respectively 59.32%, 8.94%, 18.23%, 0.45%, 1.69%, 1.01%, 10.36%。
The present embodiment can realize more thoroughly separating for aluminium foil and positive active material, and the rate of recovery of aluminium foil is 89.96%, pure Degree is 99.24%, and the leaching rate of Co, Li, Mn, Ni are respectively 93.55%, 91.71%, 87.17%, 47.47%.
Embodiment 6
It tests and uses small-sized self-control discharger, (a mould group is by 12 monolithic battery series connection groups by multiple mould groups in discharge process At) connect.When voltage is down to 3V or less, battery modules are removed, carry out single module short circuit attended operation.Then, will The dismantling of mould group carries out trimming processing to monolithic battery using abrasive wheel cutting machine and is entirely cut through with removing steel shell at monolithic battery Journey is carried out in ventilation opening.Battery inner core is taken out, manual dismantling is carried out to battery plus-negative plate and diaphragm, disassembles process in draught cupboard Interior progress.Anode pole piece is isolated after handling using cutting machine trimming；Anode pole piece is cut into the size of 1.5*1.5cm again.
Leaching experiment carries out Leach reaction in water-bath constant temperature oscillator, and reaction temperature is accurately controlled in ± 0.5 DEG C.It leaches Condition are as follows: 1.25mol/L ascorbic acid, solid-to-liquid ratio 30g/L, extraction time 50min, 70 DEG C of extraction temperature, hunting speed is 150r/min.Conical flask is taken out immediately after reaction and is filtered in the way of vacuum filtration, repeatedly washing is leached Residue and conical flask finally make the pH value of cleaning solution close to 7.0.By after washing filter residue and aluminium foil carried out in 60 DEG C of drying boxes Freeze-day with constant temperature carries out EDX test analysis for 24 hours, to the aluminium foil after drying, wherein cobalt nickel manganese elemental lithium and other impurity proportions About 0.88%, aluminium foil purity is about 99.12%, can be recycled directly as product, to filter residue carry out EDS test analysis, C, O, the weight percent of F, Al, Co, Mn, Ni be respectively 55.30%, 13.31%, 17.32%, 0.09%, 2.10%, 2.25%, 9.63%。
The present embodiment can realize more thoroughly separating for aluminium foil and positive active material, and the rate of recovery of aluminium foil is 89.08%, pure Degree is 99.12%, and the leaching rate of Co, Li, Mn, Ni are respectively 88.65%, 88.82%, 82.41%, 48.30%.
As can be seen from the above results, the present invention is for the rate of recovery of aluminium foil 89% or more, and purity is all larger than 99%, It is preferable for the leaching effect of Co, Li, Mn, it is contemplated that the industrialization for abandoned car power ternary battery is recycled.

Claims (5)

1. a kind of method of selective recovery separating valuable metals and aluminium foil from abandoned car power ternary battery, feature exist In, comprising the following steps:
(1) abandoned car power ternary battery is disassembled after the electric discharge of small-sized self-control discharger, after cutting machine trimming processing Isolate anode pole piece；
(2) it after cutting the obtained anode pole piece of step (1), dries at a temperature of 55 ~ 65 DEG C to constant weight；
(3) anode pole piece after cutting is subjected to Leach reaction, leaching condition in water-bath constant temperature oscillator are as follows: leachate is The ascorbic acid solution of 0.5 ~ 2mol/L, solid-liquid mass volume ratio are 20 ~ 50g/L, and extraction temperature is 50 ~ 80 DEG C, extraction time For 40 ~ 60min, hunting speed is 100 ~ 150r/min；
(4) it after leaching, filters, washing, obtain aluminium foil of the purity greater than 99%, residue and contains Li+、Co2+、Mn2+、Ni2+'s Acid leaching solution.
2. the method as described in claim 1, which is characterized in that in step (1), multiple abandoned car power ternary batteries are used It discharges after the series connection of mould group.
3. the method as described in claim 1, which is characterized in that in step (2), anode pole piece is cut into 1.0 cm*1.0 cm The size of ~ 3 cm*3 cm.
4. the method as described in claim 1, which is characterized in that in step (3), leaching condition are as follows: leachate is 1 ~ 1.5mol/ The ascorbic acid solution of L, solid-liquid mass volume ratio be 30 ~ 40g/L, extraction temperature be 60 ~ 70 DEG C, extraction time be 50 ~ 60min, hunting speed are 100 ~ 150r/min.
5. the method as described in claim 1, which is characterized in that in step (4), wash 3-5 times, make the pH value of cleaning solution be in Property.
CN201811381509.XA 2018-11-20 2018-11-20 A method of selective recovery separating valuable metals and aluminium foil from abandoned car power ternary battery Pending CN109439906A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110172592A (en) * 2019-05-28 2019-08-27 上海第二工业大学 A method of recycling β type cobalt oxalate from waste and old ternary lithium battery
CN110172592B (en) * 2019-05-28 2021-04-16 上海第二工业大学 Method for recovering beta-type cobalt oxalate from waste ternary lithium battery

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Application publication date: 20190308