GB2622974A8 - Method for efficiently recovering electrolyte of spent lithium-ion battery - Google Patents
Method for efficiently recovering electrolyte of spent lithium-ion battery Download PDFInfo
- Publication number
- GB2622974A8 GB2622974A8 GB2318911.1A GB202318911A GB2622974A8 GB 2622974 A8 GB2622974 A8 GB 2622974A8 GB 202318911 A GB202318911 A GB 202318911A GB 2622974 A8 GB2622974 A8 GB 2622974A8
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrolyte
- washing
- ion battery
- water phase
- salt solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003792 electrolyte Substances 0.000 title abstract 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title abstract 3
- 229910001416 lithium ion Inorganic materials 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- 239000012071 phase Substances 0.000 abstract 4
- 239000012266 salt solution Substances 0.000 abstract 4
- 238000005406 washing Methods 0.000 abstract 4
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 abstract 3
- 239000012074 organic phase Substances 0.000 abstract 3
- 239000000047 product Substances 0.000 abstract 3
- -1 carbonate ester Chemical class 0.000 abstract 2
- 150000001768 cations Chemical class 0.000 abstract 2
- 239000000706 filtrate Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000005809 transesterification reaction Methods 0.000 abstract 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
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Disclosed in the present invention is a method for efficiently recovering an electrolyte of a spent lithium-ion battery. The method comprises: crushing a spent lithium-ion battery to obtain a crushed material with an electrolyte; placing the crushed material in a salt solution and washing same; subjecting same to solid-liquid separation after washing to obtain a filtrate; leaving the filtrate to stand for layering to obtain a water phase and an organic phase; and mixing the organic phase with methanol, and distilling same under the conditions of a temperature of 60-100ºC and a vacuum degree of 10-80 kPa to obtain a crude dimethyl carbonate product. In the present invention, a salt solution is used for washing, and a solute which does not react with the electrolyte is dissolved in the salt solution, such that the density of the water phase is increased, the electrolyte and the water phase can be layered, and the electrolyte floats on the water phase, thereby realizing the layering of the electrolyte and water; and some metal cations in some salts enter the organic phase during the salt-solution washing process. A carbonate ester and methanol undergo a transesterification reaction under the catalytic action of the metal cations to generate dimethyl carbonate, the temperature is controlled to distil out a crude dimethyl carbonate product, and the carbonate ester product obtained after distillation has high purity and can be sold on the market.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210608686.7A CN114865134A (en) | 2022-05-31 | 2022-05-31 | Method for efficiently recycling electrolyte of waste lithium ion battery |
| PCT/CN2023/081684 WO2023231508A1 (en) | 2022-05-31 | 2023-03-15 | Method for efficiently recovering electrolyte of spent lithium-ion battery |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB202318911D0 GB202318911D0 (en) | 2024-01-24 |
| GB2622974A GB2622974A (en) | 2024-04-03 |
| GB2622974A8 true GB2622974A8 (en) | 2024-05-15 |
Family
ID=82641320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2318911.1A Pending GB2622974A (en) | 2022-05-31 | 2023-03-15 | Method for efficiently recovering electrolyte of spent lithium-ion battery |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN114865134A (en) |
| DE (1) | DE112023000108T5 (en) |
| GB (1) | GB2622974A (en) |
| WO (1) | WO2023231508A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114865134A (en) * | 2022-05-31 | 2022-08-05 | 广东邦普循环科技有限公司 | Method for efficiently recycling electrolyte of waste lithium ion battery |
| CN115528338A (en) * | 2022-09-16 | 2022-12-27 | 广东邦普循环科技有限公司 | Method for recovering lithium from lithium ion battery electrolyte |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2740243A1 (en) * | 1977-09-07 | 1979-03-15 | Bayer Ag | PROCESS FOR THE PRODUCTION OF DIALKYLCARBONATES |
| FR3022695A1 (en) * | 2014-06-18 | 2015-12-25 | Rhodia Operations | PROCESS FOR RECOVERING AN ELECTROLYTE SALT |
| CN108923092A (en) * | 2018-06-29 | 2018-11-30 | 惠州市宙邦化工有限公司 | A kind of waste and old lithium ionic cell electrolyte processing method |
| CN112531227A (en) * | 2019-09-17 | 2021-03-19 | 天津理工大学 | Harmless recycling method for electrolyte in waste lithium ion battery |
| CN111454152B (en) * | 2020-06-22 | 2020-10-30 | 东营市海科新源化工有限责任公司 | Preparation method and preparation device of electronic grade dimethyl carbonate |
| CN114865134A (en) * | 2022-05-31 | 2022-08-05 | 广东邦普循环科技有限公司 | Method for efficiently recycling electrolyte of waste lithium ion battery |
-
2022
- 2022-05-31 CN CN202210608686.7A patent/CN114865134A/en active Pending
-
2023
- 2023-03-15 WO PCT/CN2023/081684 patent/WO2023231508A1/en active Application Filing
- 2023-03-15 GB GB2318911.1A patent/GB2622974A/en active Pending
- 2023-03-15 DE DE112023000108.1T patent/DE112023000108T5/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN114865134A (en) | 2022-08-05 |
| GB2622974A (en) | 2024-04-03 |
| DE112023000108T5 (en) | 2024-05-29 |
| GB202318911D0 (en) | 2024-01-24 |
| WO2023231508A1 (en) | 2023-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 789A | Request for publication of translation (sect. 89(a)/1977) |
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