CN107275708B - A kind of recovery and treatment method of lithium-ion-power cell - Google Patents
A kind of recovery and treatment method of lithium-ion-power cell Download PDFInfo
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- CN107275708B CN107275708B CN201710517636.7A CN201710517636A CN107275708B CN 107275708 B CN107275708 B CN 107275708B CN 201710517636 A CN201710517636 A CN 201710517636A CN 107275708 B CN107275708 B CN 107275708B
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- 238000011084 recovery Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000003792 electrolyte Substances 0.000 claims abstract description 53
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000203 mixture Substances 0.000 claims abstract description 39
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 23
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 22
- 239000002699 waste material Substances 0.000 claims abstract description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000001488 sodium phosphate Substances 0.000 claims abstract description 15
- 229910000162 sodium phosphate Inorganic materials 0.000 claims abstract description 15
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000005030 aluminium foil Substances 0.000 claims abstract description 8
- 238000005119 centrifugation Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 8
- 239000000706 filtrate Substances 0.000 claims description 56
- 238000002525 ultrasonication Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 8
- 239000011261 inert gas Substances 0.000 claims description 7
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 6
- 238000005868 electrolysis reaction Methods 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract description 5
- 239000010949 copper Substances 0.000 abstract description 5
- 229910052759 nickel Inorganic materials 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010941 cobalt Substances 0.000 abstract description 4
- 229910017052 cobalt Inorganic materials 0.000 abstract description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 38
- 235000019441 ethanol Nutrition 0.000 description 19
- 239000002893 slag Substances 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000192 social effect Effects 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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Secondary Cells (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of recovery and treatment methods of lithium-ion-power cell, and steps are as follows: the applying waste lithium ionic power battery being collected into being put into ethanol solution, is impregnated, drying, acanthopore flows out the electrolyte inside lithium-ion-power cell, obtains the first electrolyte；Lithium-ion-power cell after acanthopore is sent into centrifuge, centrifugal treating is carried out, obtains the second electrolyte；Graphite powder will be added after lithium-ion-power cell chopping after centrifugation, investment obtains mixture A to heating stove heating；Mixture A is added and is sieved into vibrating screen, aluminium foil is separated off, obtains mixture B；Mixture B is successively carried out plus nitric acid solution, addition sodium carbonate regulating solution pH, addition sodium phosphate, addition sodium hydrate regulator solution pH are handled.Recovery and treatment method of the present invention can be realized in applying waste lithium ionic power battery copper, aluminium, cobalt, nickel, lithium synthesis effectively recycle, the rate of recovery is high, is conducive to protect environment.
Description
Technical field
The present invention relates to lithium ion battery recovery technology field, the recovery processing sides of specifically a kind of lithium-ion-power cell
Method.
Background technique
Lithium ion battery has operating voltage is high, energy density is big, has a safety feature, have extended cycle life, self discharge is low etc.
Advantage, be widely used in mobile communication, computer, instrument and meter, in electric tool.With the development of science and technology with the epoch
Progressive and electric car industry fast development, people sharply increase the demand of reason ion battery, so that lithium ion is dynamic
The consumption figure of power battery is increasing.But lithium-ion-power cell belongs to easily-consumed products, can all generate every year many waste and old lithiums from
Sub- power battery.These applying waste lithium ionic power batteries have the materials such as copper, aluminium in containing, while further including that cobalt, nickel, lithium etc. are rare
Metal material；Waste if recycling is not added scrap, not only to the pollution of environment simultaneously or to resource.To lithium
The recycling of ion battery has very great reality and social effect.Existing lithium-ion-power cell returns
Receiving processing method is not thorough the recycling of lithium-ion-power cell, and recycled in its entirety rate is low, not only causes the waste of resource, and
Residuals after the recovery cause certain pollution to environment.
Summary of the invention
The purpose of the present invention is to provide a kind of recovery and treatment methods of lithium-ion-power cell, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the invention provides the following technical scheme:
A kind of recovery and treatment method of lithium-ion-power cell, steps are as follows:
1) the applying waste lithium ionic power battery being collected into is put into ethanol solution, stirs 20-30min, impregnate 4-5h,
Then applying waste lithium ionic power battery is pulled out, is dried at 55-60 DEG C；
2) acanthopore on lithium-ion-power cell after the drying places 1-2h, makes the electrolysis inside lithium-ion-power cell
Liquid stream goes out, and collects electrolyte, obtains the first electrolyte；
3) lithium-ion-power cell after acanthopore is sent into centrifuge, under inert gas protection, carries out centrifugal treating,
It flows out remaining electrolyte and is collected, obtain the second electrolyte, the first electrolyte is merged with the second electrolyte, obtain
Electrolyte recycles total liquid；
4) by after the lithium-ion-power cell chopping after centrifugation, the graphite powder of its total weight 20-25% is added, is uniformly mixed
Afterwards, investment is into heating furnace, the isothermal holding 40-50min at 470-480 DEG C, obtains mixture A；
5) mixture A is added into vibrating screen, vibrosieve, is separated off aluminium foil, obtain mixture B；
6) mixture B is put into nitric acid solution, is stirred 1-2h, then ultrasonication 50-60min, filtered,
Obtain the first filtrate and the first filter residue；
7) sodium carbonate is added into the first filtrate, adjusting pH value of solution is 4.5-4.8, and filtering obtains the second filtrate and second
Filter residue；
8) sodium phosphate is added into the second filtrate, is stirred 1-2h, filter, obtain third filtrate and third filter residue；9)
Sodium hydroxide is added into third filtrate, adjusting pH value of solution is 10.0-10.5, and filtering obtains the 4th filtrate and the 4th filter residue.
As a further solution of the present invention: in step 1), the ethanol solution is the ethyl alcohol that concentration of alcohol is 60-70%
Aqueous solution.
As further scheme of the invention: in step 1), mixing speed 20-30rpm.
As further scheme of the invention: in step 2), puncture site is located at the safety valve of lithium-ion-power cell
Place.
As further scheme of the invention: in step 3), the revolving speed of centrifugal treating is 8000-10000rpm.
As further scheme of the invention: in step 6), the concentration of the nitric acid solution is 45-50%, nitric acid
Dosage is 1.2-1.5 times of mixture B total weight.
As further scheme of the invention: in step 6), the ultrasonication temperature is 55-60 DEG C, ultrasonic wave
Processing frequency is 60-70KHz.
As further scheme of the invention: in step 8), the dosage of the sodium phosphate is the second filtrate total weight
15-20%.
Compared with prior art, the beneficial effects of the present invention are:
The recovery and treatment method of lithium-ion-power cell of the present invention can be realized in applying waste lithium ionic power battery copper,
Aluminium, cobalt, nickel, lithium synthesis effectively recycle, the rate of recovery is high, avoids the low defect of existing recovery and treatment method yield, is conducive to
Protect environment.The recovery and treatment method simple process of lithium-ion-power cell of the present invention, it is easy to accomplish, there is important market price
Value and social value.
Specific embodiment
Technical solution of the present invention is described in more detail With reference to embodiment.
Embodiment 1
A kind of recovery and treatment method of lithium-ion-power cell, steps are as follows:
1) the applying waste lithium ionic power battery being collected into is put into ethanol solution, stirs 20min, impregnate 4h, then
Applying waste lithium ionic power battery is pulled out, is dried at 55 DEG C, wherein the ethanol solution is that concentration of alcohol is 60%
Ethanol water, mixing speed 20rpm；
2) acanthopore on lithium-ion-power cell after the drying places 1h, makes the electrolyte inside lithium-ion-power cell
Outflow, and electrolyte is collected, obtain the first electrolyte, wherein puncture site is located at the arranged at safety valve of lithium-ion-power cell；
3) lithium-ion-power cell after acanthopore is sent into centrifuge, under inert gas protection, carries out centrifugal treating,
It flows out remaining electrolyte and is collected, obtain the second electrolyte, the first electrolyte is merged with the second electrolyte, obtain
Electrolyte recycles total liquid, wherein the revolving speed of centrifugal treating is 8000rpm；
4) by after the lithium-ion-power cell chopping after centrifugation, the graphite powder of its total weight 20% is added, after mixing,
Investment is into heating furnace, the isothermal holding 40min at 470 DEG C, obtains mixture A；
5) mixture A is added into vibrating screen, vibrosieve, is separated off aluminium foil, obtain mixture B；
6) mixture B is put into nitric acid solution, is stirred 1h, then ultrasonication 50min, filtered, obtained
First filtrate and the first filter residue, wherein the concentration of the nitric acid solution is 45%, and the dosage of nitric acid is mixture B total weight
1.2 times, the ultrasonication temperature is 55 DEG C, and ultrasonication frequency is 60KHz；
7) sodium carbonate is added into the first filtrate, adjusting pH value of solution is 4.5, and filtering obtains the second filtrate and the second filter residue,
To recycle copper；
8) sodium phosphate is added into the second filtrate, is stirred 1h, filter, obtain third filtrate and third filter residue, wherein
The dosage of the sodium phosphate is the 15% of the second filtrate total weight, to recycle lithium；
9) sodium hydroxide is added into third filtrate, adjusting pH value of solution is 10.0, filtering, obtains the 4th filtrate and the 4th filter
Slag, with Call Provision and nickel.
Embodiment 2
A kind of recovery and treatment method of lithium-ion-power cell, steps are as follows:
1) the applying waste lithium ionic power battery being collected into is put into ethanol solution, stirs 23min, impregnate 4.5h, so
Applying waste lithium ionic power battery is pulled out afterwards, is dried at 55 DEG C, wherein the ethanol solution is that concentration of alcohol is 62%
Ethanol water, mixing speed 25rpm；
2) acanthopore on lithium-ion-power cell after the drying places 1.5h, makes the electrolysis inside lithium-ion-power cell
Liquid stream goes out, and collects electrolyte, obtains the first electrolyte, wherein puncture site is located at the arranged at safety valve of lithium-ion-power cell；
3) lithium-ion-power cell after acanthopore is sent into centrifuge, under inert gas protection, carries out centrifugal treating,
It flows out remaining electrolyte and is collected, obtain the second electrolyte, the first electrolyte is merged with the second electrolyte, obtain
Electrolyte recycles total liquid, wherein the revolving speed of centrifugal treating is 8500rpm；
4) by after the lithium-ion-power cell chopping after centrifugation, the graphite powder of its total weight 20% is added, after mixing,
Investment is into heating furnace, the isothermal holding 42min at 470 DEG C, obtains mixture A；
5) mixture A is added into vibrating screen, vibrosieve, is separated off aluminium foil, obtain mixture B；
6) mixture B is put into nitric acid solution, is stirred 1.5h, then ultrasonication 52min, filtered, obtain
Obtain the first filtrate and the first filter residue, wherein the concentration of the nitric acid solution is 46%, and the dosage of nitric acid is mixture B total weight
1.3 times, the ultrasonication temperature be 56 DEG C, ultrasonication frequency be 62KHz；
7) sodium carbonate is added into the first filtrate, adjusting pH value of solution is 4.6, and filtering obtains the second filtrate and the second filter residue；
8) sodium phosphate is added into the second filtrate, is stirred 1h, filter, obtain third filtrate and third filter residue, wherein
The dosage of the sodium phosphate is the 18% of the second filtrate total weight；
9) sodium hydroxide is added into third filtrate, adjusting pH value of solution is 10.1, filtering, obtains the 4th filtrate and the 4th filter
Slag.
Embodiment 3
A kind of recovery and treatment method of lithium-ion-power cell, steps are as follows:
1) the applying waste lithium ionic power battery being collected into is put into ethanol solution, stirs 25min, impregnate 4.5h, so
Applying waste lithium ionic power battery is pulled out afterwards, is dried at 58 DEG C, wherein the ethanol solution is that concentration of alcohol is 65%
Ethanol water, mixing speed 25rpm；
2) acanthopore on lithium-ion-power cell after the drying places 1.5h, makes the electrolysis inside lithium-ion-power cell
Liquid stream goes out, and collects electrolyte, obtains the first electrolyte, wherein puncture site is located at the arranged at safety valve of lithium-ion-power cell；
3) lithium-ion-power cell after acanthopore is sent into centrifuge, under inert gas protection, carries out centrifugal treating,
It flows out remaining electrolyte and is collected, obtain the second electrolyte, the first electrolyte is merged with the second electrolyte, obtain
Electrolyte recycles total liquid, wherein the revolving speed of centrifugal treating is 9000rpm；
4) by after the lithium-ion-power cell chopping after centrifugation, the graphite powder of its total weight 23% is added, after mixing,
Investment is into heating furnace, the isothermal holding 45min at 475 DEG C, obtains mixture A；
5) mixture A is added into vibrating screen, vibrosieve, is separated off aluminium foil, obtain mixture B；
6) mixture B is put into nitric acid solution, is stirred 1.5h, then ultrasonication 55min, filtered, obtain
Obtain the first filtrate and the first filter residue, wherein the concentration of the nitric acid solution is 48%, and the dosage of nitric acid is mixture B total weight
1.4 times, the ultrasonication temperature be 58 DEG C, ultrasonication frequency be 65KHz；
7) sodium carbonate is added into the first filtrate, adjusting pH value of solution is 4.6, and filtering obtains the second filtrate and the second filter residue；
8) sodium phosphate is added into the second filtrate, is stirred 1.5h, filter, obtain third filtrate and third filter residue,
In, the dosage of the sodium phosphate is the 18% of the second filtrate total weight；
9) sodium hydroxide is added into third filtrate, adjusting pH value of solution is 10.3, filtering, obtains the 4th filtrate and the 4th filter
Slag.
Embodiment 4
A kind of recovery and treatment method of lithium-ion-power cell, steps are as follows:
1) the applying waste lithium ionic power battery being collected into is put into ethanol solution, stirs 28min, impregnate 5h, then
Applying waste lithium ionic power battery is pulled out, is dried at 58 DEG C, wherein the ethanol solution is that concentration of alcohol is 65%
Ethanol water, mixing speed 30rpm；
2) acanthopore on lithium-ion-power cell after the drying places 1.5h, makes the electrolysis inside lithium-ion-power cell
Liquid stream goes out, and collects electrolyte, obtains the first electrolyte, wherein puncture site is located at the arranged at safety valve of lithium-ion-power cell；
3) lithium-ion-power cell after acanthopore is sent into centrifuge, under inert gas protection, carries out centrifugal treating,
It flows out remaining electrolyte and is collected, obtain the second electrolyte, the first electrolyte is merged with the second electrolyte, obtain
Electrolyte recycles total liquid, wherein the revolving speed of centrifugal treating is 10000rpm；
4) by after the lithium-ion-power cell chopping after centrifugation, the graphite powder of its total weight 24% is added, after mixing,
Investment is into heating furnace, the isothermal holding 45min at 478 DEG C, obtains mixture A；
5) mixture A is added into vibrating screen, vibrosieve, is separated off aluminium foil, obtain mixture B；
6) mixture B is put into nitric acid solution, is stirred 2h, then ultrasonication 57min, filtered, obtained
First filtrate and the first filter residue, wherein the concentration of the nitric acid solution is 48%, and the dosage of nitric acid is mixture B total weight
1.5 times, the ultrasonication temperature is 60 DEG C, and ultrasonication frequency is 65KHz；
7) sodium carbonate is added into the first filtrate, adjusting pH value of solution is 4.8, and filtering obtains the second filtrate and the second filter residue；
8) sodium phosphate is added into the second filtrate, is stirred 2h, filter, obtain third filtrate and third filter residue, wherein
The dosage of the sodium phosphate is the 18% of the second filtrate total weight；
9) sodium hydroxide is added into third filtrate, adjusting pH value of solution is 10.4, filtering, obtains the 4th filtrate and the 4th filter
Slag.
Embodiment 5
A kind of recovery and treatment method of lithium-ion-power cell, steps are as follows:
1) the applying waste lithium ionic power battery being collected into is put into ethanol solution, stirs 30min, impregnate 5h, then
Applying waste lithium ionic power battery is pulled out, is dried at 60 DEG C, wherein the ethanol solution is that concentration of alcohol is 70%
Ethanol water, mixing speed 30rpm；
2) acanthopore on lithium-ion-power cell after the drying places 2h, makes the electrolyte inside lithium-ion-power cell
Outflow, and electrolyte is collected, obtain the first electrolyte, wherein puncture site is located at the arranged at safety valve of lithium-ion-power cell；
3) lithium-ion-power cell after acanthopore is sent into centrifuge, under inert gas protection, carries out centrifugal treating,
It flows out remaining electrolyte and is collected, obtain the second electrolyte, the first electrolyte is merged with the second electrolyte, obtain
Electrolyte recycles total liquid, wherein the revolving speed of centrifugal treating is 10000rpm；
4) by after the lithium-ion-power cell chopping after centrifugation, the graphite powder of its total weight 25% is added, after mixing,
Investment is into heating furnace, the isothermal holding 50min at 480 DEG C, obtains mixture A；
5) mixture A is added into vibrating screen, vibrosieve, is separated off aluminium foil, obtain mixture B；
6) mixture B is put into nitric acid solution, is stirred 2h, then ultrasonication 60min, filtered, obtained
First filtrate and the first filter residue, wherein the concentration of the nitric acid solution is 50%, and the dosage of nitric acid is mixture B total weight
1.5 times, the ultrasonication temperature is 60 DEG C, and ultrasonication frequency is 70KHz；
7) sodium carbonate is added into the first filtrate, adjusting pH value of solution is 4.8, and filtering obtains the second filtrate and the second filter residue；
8) sodium phosphate is added into the second filtrate, is stirred 2h, filter, obtain third filtrate and third filter residue, wherein
The dosage of the sodium phosphate is the 20% of the second filtrate total weight；
9) sodium hydroxide is added into third filtrate, adjusting pH value of solution is 10.5, filtering, obtains the 4th filtrate and the 4th filter
Slag.
The recovery and treatment method of lithium-ion-power cell of the present invention can be realized in applying waste lithium ionic power battery copper,
Aluminium, cobalt, nickel, lithium synthesis effectively recycle, the rate of recovery reaches 90% or more, and the rate of recovery is high, avoids existing recovery processing side
The low defect of method yield is conducive to protect environment.The recovery and treatment method simple process of lithium-ion-power cell of the present invention, is easy to
Realize that there is important market value and social value.
Better embodiment of the invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be without departing from the purpose of the present invention
Various changes can be made.
Claims (8)
1. a kind of recovery and treatment method of lithium-ion-power cell, which is characterized in that steps are as follows:
1) the applying waste lithium ionic power battery being collected into is put into ethanol solution, stirs 20-30min, impregnate 4-5h, then
Applying waste lithium ionic power battery is pulled out, is dried at 55-60 DEG C；
2) acanthopore on lithium-ion-power cell after the drying places 1-2h, makes the electrolysis liquid stream inside lithium-ion-power cell
Out, and electrolyte is collected, obtains the first electrolyte；
3) lithium-ion-power cell after acanthopore is sent into centrifuge, under inert gas protection, carries out centrifugal treating, make residual
The electrolyte stayed is flowed out and is collected, and obtains the second electrolyte, the first electrolyte is merged with the second electrolyte, is electrolysed
Liquid recycles total liquid；
4) by after the lithium-ion-power cell chopping after centrifugation, the graphite powder of its total weight 20-25% is added, after mixing,
Investment is into heating furnace, the isothermal holding 40-50min at 470-480 DEG C, obtains mixture A；
5) mixture A is added into vibrating screen, vibrosieve, is separated off aluminium foil, obtain mixture B；
6) mixture B is put into nitric acid solution, is stirred 1-2h, then ultrasonication 50-60min, filtered, obtained
First filtrate and the first filter residue；
7) sodium carbonate is added into the first filtrate, adjusting pH value of solution is 4.5-4.8, and filtering obtains the second filtrate and the second filter residue；
8) sodium phosphate is added into the second filtrate, is stirred 1-2h, filter, obtain third filtrate and third filter residue；9) to
Sodium hydroxide is added in three filtrates, adjusting pH value of solution is 10.0-10.5, and filtering obtains the 4th filtrate and the 4th filter residue.
2. the recovery and treatment method of lithium-ion-power cell according to claim 1, which is characterized in that in step 1), institute
Stating ethanol solution is the ethanol water that concentration of alcohol is 60-70%.
3. the recovery and treatment method of lithium-ion-power cell according to claim 1, which is characterized in that in step 1), stir
Mixing speed is 20-30rpm.
4. the recovery and treatment method of lithium-ion-power cell according to claim 1 or 2 or 3, which is characterized in that step 2)
In, puncture site is located at the arranged at safety valve of lithium-ion-power cell.
5. the recovery and treatment method of lithium-ion-power cell according to claim 4, which is characterized in that in step 3), from
The revolving speed of heart processing is 8000-10000rpm.
6. the recovery and treatment method of lithium-ion-power cell according to claim 5, which is characterized in that in step 6), institute
The concentration for stating nitric acid solution is 45-50%, and the dosage of nitric acid is 1.2-1.5 times of mixture B total weight.
7. the recovery and treatment method of lithium-ion-power cell according to claim 6, which is characterized in that in step 6), institute
Stating ultrasonication temperature is 55-60 DEG C, and ultrasonication frequency is 60-70KHz.
8. the recovery and treatment method of lithium-ion-power cell according to claim 7, which is characterized in that in step 8), institute
The dosage for stating sodium phosphate is the 15-20% of the second filtrate total weight.
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| CN201710517636.7A CN107275708B (en) | 2017-06-29 | 2017-06-29 | A kind of recovery and treatment method of lithium-ion-power cell |
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| CN201710517636.7A CN107275708B (en) | 2017-06-29 | 2017-06-29 | A kind of recovery and treatment method of lithium-ion-power cell |
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