CN102347520B - Method for recovering power cells for new energy vehicles - Google Patents
Method for recovering power cells for new energy vehicles Download PDFInfo
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- CN102347520B CN102347520B CN201110297933.8A CN201110297933A CN102347520B CN 102347520 B CN102347520 B CN 102347520B CN 201110297933 A CN201110297933 A CN 201110297933A CN 102347520 B CN102347520 B CN 102347520B
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- 238000009854 hydrometallurgy Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 238000004064 recycling Methods 0.000 claims description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 18
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 18
- 229910052744 lithium Inorganic materials 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 16
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 13
- 239000010941 cobalt Substances 0.000 claims description 12
- 229910017052 cobalt Inorganic materials 0.000 claims description 12
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 12
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- 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 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 239000005030 aluminium foil Substances 0.000 claims description 5
- 239000011889 copper foil Substances 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 4
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- 239000002184 metal Substances 0.000 description 4
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- 238000011084 recovery Methods 0.000 description 4
- 229910000616 Ferromanganese Inorganic materials 0.000 description 3
- 229910052493 LiFePO4 Inorganic materials 0.000 description 3
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 3
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 3
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- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 3
- OVAQODDUFGFVPR-UHFFFAOYSA-N lithium cobalt(2+) dioxido(dioxo)manganese Chemical compound [Li+].[Mn](=O)(=O)([O-])[O-].[Co+2] OVAQODDUFGFVPR-UHFFFAOYSA-N 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
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Classifications
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- 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
- Y02W30/20—Waste processing or separation
-
- 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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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for recovering power cells for new energy vehicles. The method comprises the following steps of: (1) discharging the expired power cells for removing the remaining energy of the power cells to ensure that the subsequent processes can be performed safely; (2) initially partitioning; (3) detecting and classifying the performance parameters of single batteries; (4) disassembling the useless single batteries to take out the positive and negative pole pieces thereof; (5) performing elemental analysis on the obtained positive and negative pole pieces, based on the result of elemental analysis, determining the mixing amount of different batches of raw materials according to the contents of the elements and the proportion of each major element of a target product, and extracting the metal elements by hydrometallurgy to prepare the target product; and (6) sorting the employable single batteries by a battery sorter according to the residual capacitance of the single batteries, grading and classifying based on the capacitance, and then applying to products according to actual requirements.
Description
Technical field
The present invention relates to method for recovering power cells for new energy vehicles.
Background technology
Rely on day by day exhausted petroleum resources for breaking away from, reduce orthodox car exhaust emissions to severe environmental pollution, electric automobile is more and more subject to the attention of countries in the world." country's " 12 " scientific and technological development planning ", will promote the development of New-energy electric vehicle industry during clearly proposing " 12 " energetically.By 2015, electric automobile recoverable amount reached 1,000,000, and output value expection is more than 1,000 hundred million yuan.
The energy of electric automobile is all or part of from electrokinetic cell, and the life-span of electrokinetic cell generally only has 1 to three years, relative to automobile or electric automobile, the replacement frequency of electrokinetic cell is larger, at least needs replacing three to four electrokinetic cells in an electric automobile life cycle.In not far future, when after electric automobile formation scale, need process by having a large amount of electrokinetic cells of scrapping.
At present, the recovery technology of battery is all the recycling for miniature charging batteries such as general battery of mobile phone, digital camera batteries, because the volume of these miniature charging batteries is little, electricity is little, voltage is little, its danger disassembled is smaller, so be all generally adopt staff or Mechanical Crushing, technique is very simple.But Vehicular dynamic battery is because of the use of demand fulfillment automobile, and its volume, voltage and electricity are all very large.And Vehicular dynamic battery is generally by many battery cells or form battery module by tens or several tens of battery monomer and form.With regard to a battery cell, the volume of the miniature charging batteries such as the battery of mobile phone that its volume ratio is general, digital camera battery is large, its voltage and electricity are also high, and thus Vehicular dynamic battery and module thereof and disassembling of monomer all exist very large danger, such as easily on fire or blast.The structure also more complicated of Vehicular dynamic battery, except battery cell, also have the materials such as picture iron plate, copper sheet, electric wire, wiring board, plastics and rubber, its recycling difficulty is very large.And have that volume is large just because of Vehicular dynamic battery, electricity is large, complex structure and disassemble the feature with very large danger, the thus recovery and treatment method of the general miniature charging battery that safety is not high the recycling of inapplicable Vehicular dynamic battery.
But, the electrokinetic cell lost efficacy is not equal to its internal battery or monomer all loses use value, this is because electrokinetic cell requires that internal battery and battery cell have high consistency, any battery monomer hydraulic performance decline all can cause whole electrokinetic cell to lose efficacy.Most of battery cells of inefficacy electrokinetic cell inside still have higher performance (being also called complementary energy), and these battery cells can recycle again, and the complementary energy of electrokinetic cell can be utilized fully effectively can to improve the utilance of resource.And not high for complementary energy, do not continue the battery cell of use value, if only to its simple and easy landfill disposal or simply and easy treat, can cause becoming to them the material that environment is difficult to clear up, secondary pollution and day by day serious destruction are produced to environment.The battery material of electrokinetic cell also has worth in fact, can reclaim these battery materials, recycles, also can improve comprehensive resource utilization rate simultaneously, alleviate environmental pressure and pollution with the material resourcesization realizing dead battery.At present, in the recovery of electrokinetic cell resource and surplus energy utility, also not relevant report.
Summary of the invention
The method for recovering power cells for new energy vehicles that object of the present invention provides a kind of energy echelon that is safe, that can realize inefficacy Vehicular dynamic battery to utilize.
Goal of the invention of the present invention is achieved through the following technical solutions: a kind of method for recovering power cells for new energy vehicles, comprises the following steps:
(1) discharge: discharge operation is carried out to inefficacy electrokinetic cell, remove the dump energy of electrokinetic cell, to ensure that operation below can be carried out safely;
(2) tentatively break: the parts of electrokinetic cell are broken, obtains metalwork, nonmetal parts, electric wire, wiring board and battery cell;
(3) battery cell detects and classification: the performance parameter detecting battery cell, is then divided into the battery cell had use value and the battery cell not having use value according to the performance parameter of gained by battery cell;
(4) battery cell is disassembled: to not having the battery cell of use value to break, and takes out the positive pole of battery cell and the pole piece of negative pole; And disassemble the plastics, metal, rubber, anode pole piece and the cathode pole piece that obtain through sorting, fragmentation and the recycling of screening operation, and category classification;
(5) elementary analysis is carried out to the positive and negative electrode pole piece obtained, according to the result of gained elementary analysis, by the content of each element, determine the combined amount of different batches raw material according to the ratio of each essential element of target product, extract metallic element, prepare target product;
(6) to the battery cell having use value, by the residual capacitance sorting of battery sorting machine according to battery cell, carry out range by capacitance, and then be applied in product according to actual needs and go.
According to the parameter such as power interface, voltage, battery capacity of electrokinetic cell in step of the present invention (1), corresponding battery discharge instrument is used to carry out discharge operation.Described discharge mode adopts one or more combinations in the electric discharge of constant current discharge, constant resistance discharge and invariable power.
In step of the present invention (2) when electrokinetic cell inside is made up of some battery pack, continue to take battery-pack exterior casing and link apart, take out battery cell.
Performance parameter in step of the present invention (3) comprises residual capacitance, cycle life, voltage, power output and internal resistance etc.
In step of the present invention (3), whether battery cell has use value, so that the requirement of the battery performance of occasion can be recycled for criterion according to various, if the performance parameter of battery cell meets the requirement of a certain recycling occasion, the battery cell had use value can be judged as; If the performance parameter of battery cell does not meet the requirement of any recycling occasion, the battery cell do not had use value can be judged as.
As the preferred embodiments of the present invention: the battery cell had use value described in described step (3) be residual capacity higher than initial capacity 60% battery cell, or the bulk density of dump energy or mass density do not reach electrokinetic cell related request, but the battery cell of performance parameter no significant defect; And described do not have the battery cell of use value to be residual capacity lower than initial capacity 60% battery cell, or the bulk density of dump energy or mass density do not reach associated power battery request, and performance parameter has the battery cell of open defect.Described performance parameter has open defect to refer to, and the internal resistance of cell is too high, output voltage, electric current or power are too low, and does not meet the requirement of corresponding recycling occasion.Described performance parameter no significant defect refers to that the internal resistance of cell, output voltage, electric current and power meet the requirement of corresponding recycling occasion.
Step of the present invention (5) concrete operations are: carry out chemical analysis to elements such as nickel, cobalt, manganese, lithium, iron and the titaniums in the positive and negative electrode pole piece of each batch, obtain the elements such as the nickel in positive and negative electrode pole piece, cobalt, manganese, lithium, iron and titanium content, the combined amount of different batches raw material is determined according to the ratio of the essential elements such as nickel, cobalt, manganese, lithium, iron and titanium in target product, adopt the method for hydrometallurgy to extract metallic element, prepare target product.Described target product comprises the material of the element compositions such as cobalt acid lithium, lithium nickelate, LiMn2O4, nickle cobalt lithium manganate, LiFePO4, lithium titanate and other nickel cobalt ferromanganese titanium.
Step of the present invention (6) concrete operations are: to the battery having use value, by the residual capacity sorting of battery sorting machine according to battery, range is carried out by capacitance, then recycle according to actual demand, namely according to different use market to capacity, voltage, the isoparametric requirement of volume, the different application such as electronic product, emergency light and family's energy storage station is recycled to the battery cell of different capacitance grade.
The present invention further comprising the steps of (7): to step (2) the partition metalwork of gained and electric wire by manually and/or mechanical separation equipment be separated into various metalwork; By artificial and/or mechanical separation equipment, rubber-plastics material is separated into nonmetal parts, then carries out break process, carrying out kind and/or size separation, obtain the rubber and plastic pellet of sorting.
The present invention further comprising the steps of (8): sealing-off process is carried out to the wiring board of step (2) partition gained, obtain printed panel, scolding tin and components and parts, break process is being carried out to printed panel and part components and parts, and by scolding tin and the recycling of another part components and parts.
Can also be further processed the rubber and plastic pellet of step (7) gained in the present invention, mix add coupling agent, auxiliary agent and thermoplastics in rubber and plastic pellet after, the plastic product that mixing, composition is made in granulation or directly enter mold injection molding.
Initial analysis can be carried out to separating obtained various metalworks further in step of the present invention (7) and become various homogenous metal materials and parts with bunch, may be used for the preparation of alloy material, or for the smelting processing of metal.
compared with prior art, the present invention has following beneficial effect:
(1) recovery utilization rate is high: break after discharging to Vehicular dynamic battery in the present invention, the parts such as metalwork, nonmetal parts, electric wire, wiring board and battery cell can be obtained, can reclaim these parts by classification respectively and again utilize, the echelon achieving the resource of inefficacy Vehicular dynamic battery utilizes, fill with the resource making full use of inefficacy Vehicular dynamic battery, avoid wasting energy.
(2) rationally, make full use of resource: the present invention to the high battery cell of the residual capacity reclaimed in battery cell by residual capacitance classification, recycling is applied in the occasions such as family's energy storage station, emergency light, electronic equipment, make use of the complementary energy of Vehicular dynamic battery fully.And the battery cell low to residual capacity carries out the material that resource regeneration manufactures the element compositions such as cobalt acid lithium, lithium nickelate, LiMn2O4, nickle cobalt lithium manganate, LiFePO4, lithium titanate and other nickel cobalt ferromanganese titanium, not only take full advantage of the material in battery cell, also reduce burden and the pollution of environment.
(3) safety: Vehicular dynamic battery recoverying and utilizing method danger provided by the invention is low, safe and reliable, solves the problem that Vehicular dynamic battery reclaims.
Accompanying drawing explanation
Fig. 1 is the process flow block diagram of the embodiment of the present invention.
Embodiment
The method that power cells for new energy vehicles reclaims, comprises the following steps:
(1) discharge: carry out discharge operation; According to the parameter such as power interface, voltage, battery capacity of electrokinetic cell, use corresponding battery discharge instrument to carry out discharge operation to inefficacy electrokinetic cell, remove the dump energy of electrokinetic cell, to ensure that operation below can be carried out safely.Discharge mode adopts one or more combinations in the electric discharge of constant current discharge, constant resistance discharge and invariable power.
(2) tentatively break: the parts of electrokinetic cell are broken, obtains metalwork, nonmetal parts, electric wire, wiring board and battery cell; When electrokinetic cell inside is made up of some battery pack, continues to take battery-pack exterior casing and link apart, take out battery cell.
(3) battery cell detects and classification: the performance parameter detecting battery cell, the performance parameter detected comprises: residual capacitance, cycle life, voltage, power output and internal resistance etc., then battery cell will be divided into the battery cell had use value and the battery cell not having use value according to the performance parameter of gained, namely so that the requirement of the battery performance of occasion can be recycled for criterion according to various, if the performance parameter of battery cell meets the requirement of a certain recycling occasion, the battery cell had use value can be judged as, such as residual capacity is higher than 60% of initial capacity, or though the bulk density of dump energy or mass density do not reach related request, but the battery cell of performance no significant defect is the battery cell had use value.If the performance parameter of battery cell does not meet the requirement of any recycling occasion, the battery cell do not had use value can be judged as, such as residual capacity is lower than 60% of initial capacity, or the bulk density of dump energy or mass density do not reach associated power battery request, or performance parameter has the battery cell of open defect to be the battery cell not having use value.Wherein, performance parameter have open defect to refer to the internal resistance of cell is too high, output voltage, electric current or power are too low, and do not meet the requirement of corresponding recycling occasion.Performance parameter no significant defect refers to that the internal resistance of cell, output voltage, electric current and power meet the requirement of corresponding recycling occasion.
(4) to not having the battery cell of use value to disassemble: discharge to battery cell, the different demounting tools such as lathe, milling machine, sawing machine, water cutter and Linear cut are then selected to carry out cutting and separating according to sheathing material, structure and size.When disassembling, the position that shell is disassembled will not damage inside battery both positive and negative polarity pole piece for principle, first from cutter under the positive and negative electrode pole piece of battery cell, cut off and connect positive and negative electrode pole piece and as the Copper Foil of the collector of pole piece or aluminium foil, outer again along battery cell breaks shell, takes out positive and negative electrode pole piece; Then adopt the methods such as magnetic separation, gravity separation, cyclonic separation the material preliminary classification after disassembling, be divided into the parts such as plastics, metallic copper, metallic aluminium, stainless steel, pole piece and barrier film, and disassemble the parts such as plastics, metallic copper, metallic aluminium, stainless steel, pole piece and the barrier film obtained through sorting, fragmentation and the recycling of screening operation.Structure due to the positive and negative electrode of battery is that anode pole piece and cathode pole piece material are attached in the metal collector of Copper Foil or aluminium foil formation, generally with binding agent, positive and negative electrode material is fixed on copper or aluminium foil, when being separated positive plate, negative plate, Copper Foil and aluminium foil, crushing and screening can being adopted, add the method such as heat abstraction binding agent or dissolution with solvents binding agent.
(5) chemical analysis is carried out to elements such as nickel, cobalt, manganese, lithium, iron and the titaniums in the positive and negative electrode pole piece of each batch, obtain the elements such as the nickel in positive and negative electrode pole piece, cobalt, manganese, lithium, iron and titanium content, according to the result of gained elementary analysis, the combined amount of different batches raw material is determined according to the ratio of the essential elements such as nickel, cobalt, manganese, lithium, iron and titanium in target product, adopt the method for the hydrometallurgies such as acid-soluble, removal of impurities, extraction and synthesis to extract metallic element, prepare target product.Described target product comprises the material of the element compositions such as cobalt acid lithium, lithium nickelate, LiMn2O4, nickle cobalt lithium manganate, LiFePO4, lithium titanate and other nickel cobalt ferromanganese titanium.
(6) to the battery having use value, by the residual capacity sorting of battery sorting machine according to battery, for the battery cell that rated capacity is 3000mAh, residual capacity (i.e. 1800mAh) by 60% judges to recycle, be divided into 2600 ~ 3000 mAh, the battery of 2200 ~ 2600 mAh and 1800 ~ 2200 mAh, tri-capacitance grades, recycle according to actual demand, namely according to different use market to capacity, voltage, the isoparametric requirement of volume, electronic product is recycled to the battery cell of different capacitance grade, the application that emergency light and family's energy storage station etc. are different.
(7) to step (2) the partition metalwork of gained and electric wire by manually and/or mechanical separation equipment be separated into various metalwork, and further initial analysis is carried out to separating obtained various metalworks and become various homogenous metal materials and parts with bunch, may be used for the preparation of alloy material, or for the smelting processing of metal; By artificial and/or mechanical separation equipment, rubber-plastics material is separated into nonmetal parts, then carries out break process, carrying out kind and/or size separation, obtain the rubber and plastic pellet of sorting.Mix after can adding coupling agent, auxiliary agent and thermoplastics in rubber and plastic pellet, the plastic product that mixing, composition is made in granulation or directly enter mold injection molding, to realize the recycling of rubber-plastics material.
(8) sealing-off process is carried out to the wiring board of step (2) partition gained, obtain printed panel, scolding tin and components and parts, break process is being carried out to printed panel and part components and parts, and by scolding tin and the recycling of another part components and parts.
The present invention can summarize with other the concrete form without prejudice to spirit of the present invention or principal character.Above-mentioned embodiment of the present invention all can only be thought explanation of the present invention instead of restriction, therefore every above embodiment is done according to substantial technological of the present invention any trickle amendment, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (2)
1. a method for recovering power cells for new energy vehicles, is characterized in that, comprises the following steps:
(1) discharge: discharge operation is carried out to inefficacy electrokinetic cell, remove the dump energy of electrokinetic cell;
(2) tentatively break: the parts of electrokinetic cell are broken, obtains metalwork, nonmetal parts, electric wire, wiring board and battery cell;
(3) battery cell detects and classification: the performance parameter detecting battery cell, the performance parameter detected comprises: residual capacitance, cycle life, voltage, power output and internal resistance, then battery cell will be divided into the battery cell had use value and the battery cell not having use value according to the performance parameter of gained, namely so that the requirement of the battery performance of occasion can be recycled for criterion according to various, if the performance parameter of battery cell meets the requirement of a certain recycling occasion, the battery cell had use value can be judged as, if the performance parameter of battery cell does not meet the requirement of any recycling occasion, the battery cell do not had use value can be judged as,
(4) battery cell is disassembled: discharge to not having the battery cell of use value, then disassemble, when disassembling, the position that shell is disassembled will not damage inside battery both positive and negative polarity pole piece for principle, first from cutter under the positive and negative electrode pole piece of battery cell, cut off and connect positive and negative electrode pole piece and as the Copper Foil of the collector of pole piece or aluminium foil, then break shell along the outer of battery cell, take out positive pole and the cathode pole piece of battery cell; Then adopt magnetic separation, gravity separation, cyclone separation method the material preliminary classification after disassembling, be divided into plastics, metallic copper, metallic aluminium, stainless steel, rubber, anode pole piece, cathode pole piece and diaphragm element, and disassemble the plastics, metallic copper, metallic aluminium, stainless steel, rubber, anode pole piece, cathode pole piece and the diaphragm element that obtain through sorting, fragmentation and the recycling of screening operation;
(5) chemical analysis is carried out to nickel, cobalt, manganese, lithium, iron and titanium elements in the positive and negative electrode pole piece of each batch, obtain the nickel in positive and negative electrode pole piece, cobalt, manganese, lithium, iron and titanium elements content, the combined amount of different batches raw material is determined according to the ratio of nickel, cobalt, manganese, lithium, iron and titanium essential element in target product, adopt the method for hydrometallurgy to extract metallic element, prepare target product;
(6) to the battery cell having use value, by the residual capacitance sorting of battery sorting machine according to battery cell, carry out range by capacitance, and then be applied in product according to actual needs and go.
2. method for recovering power cells for new energy vehicles according to claim 1, is characterized in that, in described step (2) when electrokinetic cell inside is made up of some battery pack, continues to take battery-pack exterior casing and link apart, takes out battery cell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110297933.8A CN102347520B (en) | 2011-10-08 | 2011-10-08 | Method for recovering power cells for new energy vehicles |
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| CN201110297933.8A CN102347520B (en) | 2011-10-08 | 2011-10-08 | Method for recovering power cells for new energy vehicles |
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