CN112794300A - Separation, recovery and regeneration method of waste lithium iron phosphate battery positive plate - Google Patents
Separation, recovery and regeneration method of waste lithium iron phosphate battery positive plate Download PDFInfo
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- CN112794300A CN112794300A CN201911112756.4A CN201911112756A CN112794300A CN 112794300 A CN112794300 A CN 112794300A CN 201911112756 A CN201911112756 A CN 201911112756A CN 112794300 A CN112794300 A CN 112794300A
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- Prior art keywords
- iron phosphate
- lithium iron
- waste lithium
- waste
- positive plate
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- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 47
- 239000002699 waste material Substances 0.000 title claims abstract description 45
- 238000011084 recovery Methods 0.000 title abstract description 8
- 238000000926 separation method Methods 0.000 title description 4
- 238000011069 regeneration method Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000001172 regenerating effect Effects 0.000 claims abstract description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 7
- 239000011574 phosphorus Substances 0.000 claims abstract description 7
- 238000012216 screening Methods 0.000 claims abstract description 7
- 238000001354 calcination Methods 0.000 claims abstract description 5
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 19
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 17
- 239000011261 inert gas Substances 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 238000005245 sintering Methods 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000001694 spray drying Methods 0.000 claims description 6
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000000713 high-energy ball milling Methods 0.000 claims description 4
- 239000006230 acetylene black Substances 0.000 claims description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 3
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical group [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- XIXADJRWDQXREU-UHFFFAOYSA-M lithium acetate Chemical compound [Li+].CC([O-])=O XIXADJRWDQXREU-UHFFFAOYSA-M 0.000 claims description 3
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 3
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 3
- 229910052754 neon Inorganic materials 0.000 claims description 3
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 3
- 235000011009 potassium phosphates Nutrition 0.000 claims description 3
- 239000001488 sodium phosphate Substances 0.000 claims description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 8
- 229910001416 lithium ion Inorganic materials 0.000 description 8
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 231100000956 nontoxicity Toxicity 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010926 waste battery Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/45—Phosphates containing plural metal, or metal and ammonium
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Primary Cells (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a method for separating, recovering and regenerating a positive plate of a waste lithium iron phosphate battery, which comprises the following steps: s1, disassembling; s2, primary calcination; s3, vibrating and screening; s4, treating with alkali liquor; s5, adding an iron source, a lithium source and a phosphorus source compound; and S6, carrying out secondary calcination to obtain the novel lithium iron phosphate material. Compared with the prior art, the method for separating, recovering and regenerating the positive plates of the waste lithium iron phosphate batteries has the advantages of high recovery rate and excellent charge and discharge performance.
Description
Technical Field
The invention relates to the field of lithium batteries, in particular to a method for separating, recovering and regenerating a positive plate of a waste lithium iron phosphate battery.
Background
The rapid development of the new energy industry provides unprecedented opportunities for the application of lithium ion batteries in the field of energy storage batteries, and the lithium ion batteries are increasingly applied to a plurality of fields because of the advantages of high energy density, small self-discharge current, high safety, large-current charge and discharge, multiple cycle times, long service life and the like. However, the service life of the lithium ion battery is generally 2-5 years, a large amount of waste lithium ion batteries can be generated along with the wide application of the lithium ion battery, so that not only can resources be seriously wasted, but also certain pollution is caused to the environment and human bodies, and the lithium ion power battery using lithium iron phosphate as the anode material has been widely applied to the electric automobile industry due to the characteristics of low cost, good cycle performance, good safety performance and the like. The huge consumption of lithium ion power batteries brings about an incredible number of waste batteries, and many of the waste lithium ion power batteries are directly treated as garbage, which not only wastes resources, but also causes pollution to the environment.
Therefore, there is a need to provide a novel method for separating, recovering and regenerating the positive electrode plates of the waste lithium iron phosphate batteries, so as to overcome the above-mentioned defects.
Disclosure of Invention
The invention aims to provide a novel method for separating, recovering and regenerating a positive plate of a waste lithium iron phosphate battery, which has high recovery rate and excellent charge and discharge performance.
In order to achieve the aim, the invention provides a method for separating, recovering and regenerating a positive plate of a waste lithium iron phosphate battery, which comprises the following steps:
s1, discharging the waste lithium iron phosphate battery to a voltage of 2.0V, and then performing disassembly and screening to obtain a positive plate;
s2, placing the anode plate slices into a sintering furnace, and introducing inert gas into the sintering furnace to heat up to obtain a calcined anode plate;
s3, placing the calcined waste pole pieces into a vibrating screen, and performing vibrating screening, wherein the upper surface of the vibrating screen is provided with aluminum foil, and the lower surface of the vibrating screen is provided with waste lithium iron phosphate powder;
s4, adding the waste lithium iron phosphate powder into alkali liquor, removing residual aluminum, and filtering to obtain filter residue;
s5, spray drying the filter residue, collecting the powder, adding an iron source, a lithium source or a phosphorus source compound into the powder, mechanically stirring the mixture evenly, and then mixing the mixture with a carbon source for high-energy ball milling;
and S6, putting the ball-milled product into a sintering furnace, and introducing inert gas to calcine the ball-milled product to obtain a new lithium iron phosphate material.
Further, in step 1, the waste lithium iron phosphate battery positive plate includes a waste positive plate generated in the preparation process of the positive plate and the battery preparation process, and a positive plate detached from the waste lithium iron phosphate battery.
Further, in step 2, the inert gas refers to one or more of helium, neon, argon and nitrogen, the purity of the inert gas is above 99.95%, the pressure of the furnace chamber is controlled at 300 Pa for 120-.
Further, in step 5, the lithium source is at least one of lithium carbonate, lithium hydroxide and lithium acetate; the iron source is ferrous sulfate; the phosphorus source is at least one of phosphoric acid, ammonium dihydrogen phosphate, sodium monohydrogen phosphate, sodium phosphate and potassium phosphate.
Further, in the step 5, the carbon source is at least one of acetylene black, graphite black, superconducting carbon black and graphene, and the adding amount of the carbon source is 5-15% of the weight of the powder after spray drying.
Further, in step 4, the alkali liquor is sodium hydroxide solution.
Compared with the prior art, the method for separating, recovering and regenerating the waste lithium iron phosphate battery positive plates has the advantages of reasonable process, low processing cost, no pollution, no toxicity and the like through the separation and recovery of the waste lithium iron phosphate positive plates, avoids the oxidation of active metal aluminum under the condition of losing the binder through calcination under the protection of inert gas, ensures the original toughness of aluminum, thereby achieving the maximum stripping of aluminum and lithium iron phosphate, respectively recovering and separating the aluminum and the lithium iron phosphate, and having high recovery rate; the Al content in the obtained lithium iron phosphate waste powder is below 0.05 percent; the aluminum foil of the accessory product does not contain lithium iron phosphate powder and can be sold as a product, so the application prospect is very wide.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a method for separating, recovering and regenerating a positive plate of a waste lithium iron phosphate battery, which comprises the following steps:
s1, discharging the waste lithium iron phosphate battery to a voltage of 2.0V, and then performing disassembly and screening to obtain a positive plate; the waste lithium iron phosphate battery positive plate comprises a waste positive plate produced in the preparation process of the positive plate and the preparation process of the battery and a positive plate detached from the waste lithium iron phosphate battery.
S2, placing the anode plate slices into a sintering furnace, and introducing inert gas into the sintering furnace to heat up to obtain a calcined anode plate; the inert gas is one or more of helium, neon, argon and nitrogen, the purity of the inert gas is more than 99.95 percent, the pressure of the hearth is controlled to be 300 Pa, the oxygen concentration is 70-180ppm, the temperature is 500 DEG, and the graphite and the adhesive on the positive plate are removed through heat treatment.
S3, placing the calcined waste pole pieces into a vibrating screen, and performing vibrating screening, wherein the upper surface of the vibrating screen is provided with aluminum foil, and the lower surface of the vibrating screen is provided with waste lithium iron phosphate powder;
s4, adding the waste lithium iron phosphate powder into alkali liquor, removing residual aluminum, and filtering to obtain filter residue; the alkali liquor is sodium hydroxide solution, sodium hydroxide can react with residual aluminum to generate sodium metaaluminate and hydrogen, the sodium metaaluminate exists in the solution, the hydrogen is volatilized, and the filter residue containing iron and lithium is easy to filter.
S5, spray drying the filter residue, collecting the powder, adding an iron source, a lithium source or a phosphorus source compound into the powder, mechanically stirring the mixture evenly, and then mixing the mixture with a carbon source for high-energy ball milling; the lithium source is at least one of lithium carbonate, lithium hydroxide and lithium acetate; the iron source is ferrous sulfate; the phosphorus source is at least one of phosphoric acid, ammonium dihydrogen phosphate, sodium monohydrogen phosphate, sodium phosphate and potassium phosphate, the carbon source is at least one of acetylene black, graphite black, superconducting carbon black and graphene, and the adding amount of the carbon source is 5-15% of the weight of the powder after spray drying. The high-energy ball milling speed is 2000-2100 r/min, and the time is 2-3 h.
And S6, putting the ball-milled product into a sintering furnace, and introducing inert gas to calcine the ball-milled product to obtain a new lithium iron phosphate material.
Compared with the prior art, the method for separating, recovering and regenerating the waste lithium iron phosphate battery positive plates has the advantages of reasonable process, low processing cost, no pollution, no toxicity and the like through the separation and recovery of the waste lithium iron phosphate positive plates, avoids the oxidation of active metal aluminum under the condition of losing the binder through calcination under the protection of inert gas, ensures the original toughness of aluminum, thereby achieving the maximum stripping of aluminum and lithium iron phosphate, respectively recovering and separating the aluminum and the lithium iron phosphate, and having high recovery rate; the Al content in the obtained lithium iron phosphate waste powder is below 0.05 percent; the aluminum foil of the accessory product does not contain lithium iron phosphate powder and can be sold as a product, so the application prospect is very wide.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A method for separating, recovering and regenerating a positive plate of a waste lithium iron phosphate battery is characterized by comprising the following steps:
s1, discharging the waste lithium iron phosphate battery to a voltage of 2.0V, and then performing disassembly and screening to obtain a positive plate;
s2, placing the anode plate slices into a sintering furnace for primary calcination, introducing inert gas into the sintering furnace for heating, and obtaining the calcined anode plates;
s3, placing the calcined waste pole pieces into a vibrating screen, and performing vibrating screening, wherein the upper surface of the vibrating screen is provided with aluminum foil, and the lower surface of the vibrating screen is provided with waste lithium iron phosphate powder;
s4, adding the waste lithium iron phosphate powder into alkali liquor, removing residual aluminum, and filtering to obtain filter residue;
s5, spray drying the filter residue, collecting the powder, adding an iron source, a lithium source or a phosphorus source compound into the powder, mechanically stirring the mixture evenly, and then mixing the mixture with a carbon source for high-energy ball milling;
and S6, putting the ball-milled product into a sintering furnace, and introducing inert gas to calcine the ball-milled product to obtain a new lithium iron phosphate material.
2. The method for separating, recovering and regenerating the positive plates of the waste lithium iron phosphate batteries according to claim 1, is characterized in that: in the step 1, the waste lithium iron phosphate battery positive plate comprises a waste positive plate produced in the preparation process of the positive plate and the preparation process of the battery and a positive plate detached from the waste lithium iron phosphate battery.
3. The method for separating, recovering and regenerating the positive plates of the waste lithium iron phosphate batteries according to claim 1, is characterized in that: in step 2, the inert gas refers to one or more of helium, neon, argon and nitrogen, the purity of the inert gas is above 99.95%, the pressure of the furnace chamber is controlled at 300 Pa, the oxygen concentration is 70-180ppm, and the temperature is 500-800 ℃.
4. The method for separating, recovering and regenerating the positive plates of the waste lithium iron phosphate batteries according to claim 1, is characterized in that: in step 5, the lithium source is at least one of lithium carbonate, lithium hydroxide and lithium acetate; the iron source is ferrous sulfate; the phosphorus source is at least one of phosphoric acid, ammonium dihydrogen phosphate, sodium monohydrogen phosphate, sodium phosphate and potassium phosphate.
5. The method for separating, recovering and regenerating the positive plates of the waste lithium iron phosphate batteries according to claim 1, is characterized in that: in the step 5, the carbon source is at least one of acetylene black, graphite black, superconducting carbon black and graphene, and the adding amount of the carbon source is 5-15% of the weight of the powder after spray drying.
6. The method for separating, recovering and regenerating the positive plates of the waste lithium iron phosphate batteries according to claim 1, is characterized in that: in step 4, the alkali liquor adopts sodium hydroxide solution.
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| CN201911112756.4A CN112794300A (en) | 2019-11-14 | 2019-11-14 | Separation, recovery and regeneration method of waste lithium iron phosphate battery positive plate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113683073A (en) * | 2021-08-25 | 2021-11-23 | 贵州轻工职业技术学院 | Method for recycling lithium iron phosphate from waste lithium iron phosphate battery, application of method and lithium iron phosphate battery |
| CN113707893A (en) * | 2021-08-16 | 2021-11-26 | 广西师范大学 | Carbon-based electrocatalyst prepared from waste lithium iron phosphate battery positive electrode material and preparation method and application thereof |
| CN114204149A (en) * | 2021-11-24 | 2022-03-18 | 华中科技大学 | Method for separating electrode material from retired lithium battery pole piece and application thereof |
| CN114421042A (en) * | 2022-01-14 | 2022-04-29 | 郑州大学 | Method for recovering metal aluminum, lithium carbonate and sodium nitrate from waste lithium iron phosphate material and application thereof |
| WO2022267424A1 (en) * | 2021-06-24 | 2022-12-29 | 广东邦普循环科技有限公司 | Method for preparing lithium iron phosphate by recycling waste batteries |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847763A (en) * | 2010-04-09 | 2010-09-29 | 奇瑞汽车股份有限公司 | Comprehensive recovering method of waste lithium iron phosphate battery |
| CN102208707A (en) * | 2011-05-12 | 2011-10-05 | 合肥工业大学 | Method for repair and regeneration of waste lithium iron phosphate battery cathode material |
| CN108258350A (en) * | 2016-12-29 | 2018-07-06 | 中国科学院深圳先进技术研究院 | The MAT'L recycling method of waste lithium iron phosphate battery |
| CN109103532A (en) * | 2018-08-03 | 2018-12-28 | 泉州市锂灿新材料科技有限公司 | A kind of regeneration method of LiFePO4 refuse battery positive plate |
| CN110085939A (en) * | 2019-05-08 | 2019-08-02 | 株洲冶炼集团股份有限公司 | A kind of separation and recovery method of waste lithium iron phosphate battery positive plate |
-
2019
- 2019-11-14 CN CN201911112756.4A patent/CN112794300A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847763A (en) * | 2010-04-09 | 2010-09-29 | 奇瑞汽车股份有限公司 | Comprehensive recovering method of waste lithium iron phosphate battery |
| CN102208707A (en) * | 2011-05-12 | 2011-10-05 | 合肥工业大学 | Method for repair and regeneration of waste lithium iron phosphate battery cathode material |
| CN108258350A (en) * | 2016-12-29 | 2018-07-06 | 中国科学院深圳先进技术研究院 | The MAT'L recycling method of waste lithium iron phosphate battery |
| CN109103532A (en) * | 2018-08-03 | 2018-12-28 | 泉州市锂灿新材料科技有限公司 | A kind of regeneration method of LiFePO4 refuse battery positive plate |
| CN110085939A (en) * | 2019-05-08 | 2019-08-02 | 株洲冶炼集团股份有限公司 | A kind of separation and recovery method of waste lithium iron phosphate battery positive plate |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022267424A1 (en) * | 2021-06-24 | 2022-12-29 | 广东邦普循环科技有限公司 | Method for preparing lithium iron phosphate by recycling waste batteries |
| US20240034627A1 (en) * | 2021-06-24 | 2024-02-01 | Guangdong Brunp Recycling Technology Co., Ltd. | Method for preparing lithium iron phosphate by recycling waste batteries |
| US11958743B2 (en) * | 2021-06-24 | 2024-04-16 | Guangdong Brunp Recycling Technology Co., Ltd. | Method for preparing lithium iron phosphate by recycling waste batteries |
| CN113707893A (en) * | 2021-08-16 | 2021-11-26 | 广西师范大学 | Carbon-based electrocatalyst prepared from waste lithium iron phosphate battery positive electrode material and preparation method and application thereof |
| CN113707893B (en) * | 2021-08-16 | 2022-08-12 | 广西师范大学 | Carbon-based electrocatalyst prepared from waste lithium iron phosphate battery positive electrode material and preparation method and application thereof |
| CN113683073A (en) * | 2021-08-25 | 2021-11-23 | 贵州轻工职业技术学院 | Method for recycling lithium iron phosphate from waste lithium iron phosphate battery, application of method and lithium iron phosphate battery |
| CN114204149A (en) * | 2021-11-24 | 2022-03-18 | 华中科技大学 | Method for separating electrode material from retired lithium battery pole piece and application thereof |
| CN114421042A (en) * | 2022-01-14 | 2022-04-29 | 郑州大学 | Method for recovering metal aluminum, lithium carbonate and sodium nitrate from waste lithium iron phosphate material and application thereof |
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