CN110157915A - The efficient reuse method of anode material of lithium battery - Google Patents
The efficient reuse method of anode material of lithium battery Download PDFInfo
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- CN110157915A CN110157915A CN201910548798.6A CN201910548798A CN110157915A CN 110157915 A CN110157915 A CN 110157915A CN 201910548798 A CN201910548798 A CN 201910548798A CN 110157915 A CN110157915 A CN 110157915A
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- cobalt
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/08—Carbonates; Bicarbonates
-
- 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
- C22B21/00—Obtaining aluminium
- C22B21/0038—Obtaining aluminium by other processes
-
- 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
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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
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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
- 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 the efficient reuse methods of anode material of lithium battery, comprising the following steps: (1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material and aluminium foil.(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtains nickel cobalt manganese lithium leachate and leached mud.(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, mixes nickel, cobalt, manganese element by certain mol proportion example, adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction.(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Description
Technical field
The present invention relates to lithium battery recovery technology fields, the specially efficient reuse method of anode material of lithium battery.
Background technique
Lithium battery has been used widely as novel energy battery, with characteristics such as high security, high capacity, with
Being widely used for the products such as digital product such as mobile phone, laptop, anode material of lithium battery is with cobalt acid lithium, nickel cobalt mangaic acid
Based on lithium, LiFePO4.With the rapid development of New Energy Industry, the ternary nickel cobalt manganese hydroxide number of batteries of generation is continuous
It increases sharply, the recycling of battery material is extremely urgent.If mishandling, serious environmental pollution is on the one hand caused；Another party
Face also cause in refuse battery can secondary use the valuable metals wasting of resources such as nickel, cobalt, manganese, lithium, aggravated the burden of resource.?
While greatly developing new energy dynamic lithium battery, it more can not be ignored the technology that waste power lithium battery resource utilization utilizes and grind
Study carefully, this " can not only turn waste into wealth ", realize the sustainable development of resource, environment, can also promote the innovation of New Energy Industry chain
Development.
Currently, existing anode material of lithium battery recycling step is various, it is complex, and material only has been recycled, also need
It to carry out remanufacturing again using process, processing efficiency is lower.
Summary of the invention
It is an object of the invention to: it is various for upper existing anode material of lithium battery recycling step, it is complex, and only
It is to have recycled material, it is also necessary to carry out remanufacturing again using process, the lower problem of processing efficiency, the present invention provides lithium battery
The efficient reuse method of positive electrode.
The efficient reuse method of anode material of lithium battery, comprising the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material
And aluminium foil, directly recycle aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtain nickel cobalt manganese lithium leachate and
Leached mud, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain
Molar ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtained
Nickle cobalt lithium manganate.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Further, heating temperature described in step (1) be 500~750 DEG C, the mechanical treatment be stirring, oscillation or
Ultrasonic treatment.
Further, the concentrated sulfuric acid that sulfuric acid solution described in step (2) is 98%, the leaching time are 1.5~3h.
Further, nickel salt described in step (3) is nickel sulfate, nickel chloride or nickelous bromide, the cobalt salt be cobalt naphthenate,
Cobaltous octadecanate, new cobalt decanoate or cobalt boracylate, the manganese salt are high manganese lithium, sodium permanganate or potassium permanganate.
Further, nickel described in step (3), cobalt, manganese element press (0.8~1): (0.2~2.5): (0.2~2.5)
Molar ratio mixing.
Further, high temperature solid state reaction temperature described in step (5) be 1200~1300 DEG C, the reaction time be 10~
15h。
Further, carbonate described in step (6) is potassium carbonate, sodium carbonate or ammonium carbonate.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1. the method for the present invention is simple, step is succinct, easy to operate, saves cost and labour.
2. present invention Direct Regeneration in removal process can be recycled, be avoided at nickel-cobalt lithium manganate cathode material
It again carries out remanufacturing using process after recycling, improves processing efficiency.
Specific embodiment
All features disclosed in this specification can be with any other than mutually exclusive feature and/or step
Mode combines.
The efficient reuse method of anode material of lithium battery, comprising the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material
And aluminium foil, directly recycle aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtain nickel cobalt manganese lithium leachate and
Leached mud, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain
Molar ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtained
Nickle cobalt lithium manganate.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Further, heating temperature described in step (1) be 500~750 DEG C, the mechanical treatment be stirring, oscillation or
Ultrasonic treatment.
Further, the concentrated sulfuric acid that sulfuric acid solution described in step (2) is 98%, the leaching time are 1.5~3h.
Further, nickel salt described in step (3) is nickel sulfate, nickel chloride or nickelous bromide, the cobalt salt be cobalt naphthenate,
Cobaltous octadecanate, new cobalt decanoate or cobalt boracylate, the manganese salt are high manganese lithium, sodium permanganate or potassium permanganate.
Further, nickel described in step (3), cobalt, manganese element press (0.8~1): (0.2~2.5): (0.2~2.5)
Molar ratio mixing.
Further, high temperature solid state reaction temperature described in step (5) be 1200~1300 DEG C, the reaction time be 10~
15h。
Further, carbonate described in step (6) is potassium carbonate, sodium carbonate or ammonium carbonate.
Embodiment 1
The efficient reuse method of anode material of lithium battery, comprising the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material
And aluminium foil, directly recycle aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtain nickel cobalt manganese lithium leachate and
Leached mud, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain
Molar ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtained
Nickle cobalt lithium manganate.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Further, heating temperature described in step (1) is 500, and the mechanical treatment is ultrasonic treatment.
Further, the concentrated sulfuric acid that sulfuric acid solution described in step (2) is 98%, the leaching time are 3h.
Further, nickel salt described in step (3) is nickel sulfate, and the cobalt salt is cobalt naphthenate, and the manganese salt is Gao Meng
Sour lithium.
Further, nickel described in step (3), cobalt, manganese element are mixed by the molar ratio of 0.8:2.5:2.5.
Further, high temperature solid state reaction temperature described in step (5) is 1200 DEG C, reaction time 15h.
Further, carbonate described in step (6) is sodium carbonate.
Embodiment 2
The efficient reuse method of anode material of lithium battery, comprising the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material
And aluminium foil, directly recycle aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtain nickel cobalt manganese lithium leachate and
Leached mud, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain
Molar ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtained
Nickle cobalt lithium manganate.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Further, heating temperature described in step (1) is 750 DEG C, and the mechanical treatment is stir process.
Further, the concentrated sulfuric acid that sulfuric acid solution described in step (2) is 98%, the leaching time are 1.5.
Further, nickel salt described in step (3) is nickel chloride, and the cobalt salt is cobaltous octadecanate, and the manganese salt is Gao Meng
Sour sodium.
Further, nickel described in step (3), cobalt, manganese element are mixed by the molar ratio of 1:0.2:0.2.
Further, high temperature solid state reaction temperature described in step (5) is 1300 DEG C, reaction time 10h.
Further, carbonate described in step (6) is potassium carbonate.
Embodiment 3
The efficient reuse method of anode material of lithium battery, comprising the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material
And aluminium foil, directly recycle aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtain nickel cobalt manganese lithium leachate and
Leached mud, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain
Molar ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtained
Nickle cobalt lithium manganate.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Further, heating temperature described in step (1) is 650 DEG C, and the mechanical treatment is oscillation treatment.
Further, the concentrated sulfuric acid that sulfuric acid solution described in step (2) is 98%, the leaching time are 2h.
Further, nickel salt described in step (3) is nickelous bromide, and the cobalt salt is new cobalt decanoate, and the manganese salt is Gao Meng
Sour potassium.
Further, nickel described in step (3), cobalt, manganese element are mixed by the molar ratio of 0.9:1:1.
Further, high temperature solid state reaction temperature described in step (5) is 1250 DEG C, reaction time 12h.
Further, carbonate described in step (6) is ammonium carbonate.
Embodiment 4
The efficient reuse method of anode material of lithium battery, comprising the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material
And aluminium foil, directly recycle aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtain nickel cobalt manganese lithium leachate and
Leached mud, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain
Molar ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtained
Nickle cobalt lithium manganate.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Further, heating temperature described in step (1) is 700 DEG C, and the mechanical treatment is oscillation treatment.
Further, the concentrated sulfuric acid that sulfuric acid solution described in step (2) is 98%, the leaching time are 2.5h.
Further, nickel salt described in step (3) is nickel sulfate, and the cobalt salt is cobalt boracylate, and the manganese salt is Gao Meng
Sour lithium.
Further, nickel described in step (3), cobalt, manganese element are mixed by the molar ratio of 0.8:0.6:0.6.
Further, high temperature solid state reaction temperature described in step (5) is 1200 DEG C, reaction time 14h.
Further, carbonate described in step (6) is ammonium carbonate.
Embodiment 5
The efficient reuse method of anode material of lithium battery, comprising the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material
And aluminium foil, directly recycle aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtain nickel cobalt manganese lithium leachate and
Leached mud, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain
Molar ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtained
Nickle cobalt lithium manganate.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Further, heating temperature described in step (1) is 550 DEG C, and the mechanical treatment is ultrasonic treatment.
Further, the concentrated sulfuric acid that sulfuric acid solution described in step (2) is 98%, the leaching time are 2.5h.
Further, nickel salt described in step (3) is nickelous bromide, and the cobalt salt is new cobalt decanoate, and the manganese salt is Gao Meng
Sour sodium.
Further, nickel described in step (3), cobalt, manganese element are mixed by the molar ratio of 1:1.5:1.5.
Further, high temperature solid state reaction temperature described in step (5) is 1300 DEG C, reaction time 11h.
Further, carbonate described in step (6) is potassium carbonate.
Embodiment 6
The efficient reuse method of anode material of lithium battery, comprising the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material
And aluminium foil, directly recycle aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtain nickel cobalt manganese lithium leachate and
Leached mud, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain
Molar ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtained
Nickle cobalt lithium manganate.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
Further, heating temperature described in step (1) is 600 DEG C, and the mechanical treatment is oscillation treatment.
Further, the concentrated sulfuric acid that sulfuric acid solution described in step (2) is 98%, the leaching time are 3h.
Further, nickel salt described in step (3) is nickelous bromide, and the cobalt salt is cobalt boracylate, and the manganese salt is Gao Meng
Sour potassium.
Further, nickel described in step (3), cobalt, manganese element are mixed by the molar ratio of 1:1.8:1.8.
Further, high temperature solid state reaction temperature described in step (5) is 1250 DEG C, reaction time 13h.
Further, carbonate described in step (6) is sodium carbonate.
Claims (7)
1. the efficient reuse method of anode material of lithium battery, which comprises the following steps:
(1) positive plate for weighing recycling, which is heated, separates binder with mechanical treatment, obtains nickel-cobalt lithium manganate cathode material and aluminium
Foil, directly recycling aluminium foil.
(2) nickel-cobalt lithium manganate cathode material generated in (1) is leached with sulfuric acid solution, obtains nickel cobalt manganese lithium leachate and leaching
Slag, directly recycling leached mud.
(3) the nickel cobalt manganese lithium leachate generated in (2) adds nickel salt, cobalt salt, manganese salt, makes nickel, cobalt, manganese element by certain mole
Ratio mixing adds hydroxide solution and ammonium hydroxide reaction, obtains suspension.
(4) suspension generated in (3) is filtered, dried, obtain nickel cobalt manganese hydroxide powder.
(5) lithium carbonate is added in the nickel cobalt manganese hydroxide powder generated in (4) and mixes progress high temperature solid state reaction, obtain nickel cobalt
LiMn2O4.
(6) carbonate will be added in (4) middle filtrate generated, stirring, precipitating, filtering, drying obtain lithium carbonate powder.
2. the efficient reuse method of anode material of lithium battery according to claim 1, which is characterized in that in step (1)
The heating temperature is 500~750 DEG C, and the mechanical treatment is stirring, oscillation or ultrasonic treatment.
3. the efficient reuse method of anode material of lithium battery according to claim 1, which is characterized in that in step (2)
The concentrated sulfuric acid that the sulfuric acid solution is 98%, the leaching time are 1.5~3h.
4. the efficient reuse method of anode material of lithium battery according to claim 1, which is characterized in that in step (3)
The nickel salt is nickel sulfate, nickel chloride or nickelous bromide, and the cobalt salt is that cobalt naphthenate, cobaltous octadecanate, new cobalt decanoate or boron are acylated
Cobalt, the manganese salt are high manganese lithium, sodium permanganate or potassium permanganate.
5. the efficient reuse method of anode material of lithium battery according to claim 1, which is characterized in that in step (3)
The nickel, cobalt, manganese element press (0.8~1): (0.2~2.5): the molar ratio mixing of (0.2~2.5).
6. the efficient reuse method of anode material of lithium battery according to claim 1, which is characterized in that in step (5)
The high temperature solid state reaction temperature is 1200~1300 DEG C, and the reaction time is 10~15h.
7. the efficient reuse method of anode material of lithium battery according to claim 1, which is characterized in that in step (6)
The carbonate is potassium carbonate, sodium carbonate or ammonium carbonate.
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| CN113308604A (en) * | 2021-04-26 | 2021-08-27 | 湖南大学 | Intrinsic safety processing method for edge metal in retired battery pole piece and application |
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