MA65121A1 - Method for efficiently recovering electrolyte of spent lithium-ion battery - Google Patents
Method for efficiently recovering electrolyte of spent lithium-ion batteryInfo
- Publication number
- MA65121A1 MA65121A1 MA65121A MA65121A MA65121A1 MA 65121 A1 MA65121 A1 MA 65121A1 MA 65121 A MA65121 A MA 65121A MA 65121 A MA65121 A MA 65121A MA 65121 A1 MA65121 A1 MA 65121A1
- Authority
- MA
- Morocco
- Prior art keywords
- electrolyte
- salt solution
- washing
- ion battery
- organic phase
- Prior art date
Links
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
Est divulgué dans la présente invention un procédé de récupération efficace d'un électrolyte d'une batterie lithium-ion usagée. Le procédé comprend : le broyage d'une batterie lithium-ion usagée pour obtenir un matériau broyé avec un électrolyte ; le placement du matériau broyé dans une solution de sel et son lavage ; la soumission de l'ensemble à une séparation solide-liquide après le lavage pour obtenir un filtrat ; la mise au repos du filtrat pour la stratification afin d'obtenir une phase aqueuse et une phase organique ; et le mélange de la phase organique avec du méthanol, et la distillation de l'ensemble dans les conditions d'une température de 60 à 100 °C et d'un degré de vide de 10 à 80 kPa pour obtenir un produit de carbonate de diméthyle brut. Dans la présente invention, une solution de sel est utilisée pour le lavage, et un soluté qui ne réagit pas avec l'électrolyte est dissous dans la solution de sel, de telle sorte que la densité de la phase aqueuse est augmentée, l'électrolyte et la phase aqueuse peuvent être stratifiés, et l'électrolyte flotte sur la phase aqueuse, ce qui permet de réaliser la stratification de l'électrolyte et de l'eau ; et certains cations métalliques dans certains sels entrent dans la phase organique pendant le processus de lavage de la solution de sel. Un ester de carbonate et du méthanol subissent une réaction de transestérification sous l'action catalytique des cations métalliques pour générer du carbonate de diméthyle, la température est régulée pour distiller un produit de carbonate de diméthyle brut, et le produit d'ester de carbonate obtenu après distillation a une pureté élevée et peut être vendu sur le marché.The present invention discloses an efficient process for recovering electrolyte from a used lithium-ion battery. The process comprises: grinding a used lithium-ion battery to obtain ground material with electrolyte; placing the ground material in a salt solution and washing it; subjecting the mixture to solid-liquid separation after washing to obtain a filtrate; allowing the filtrate to settle for stratification to obtain an aqueous phase and an organic phase; and mixing the organic phase with methanol, and distilling the mixture under conditions of a temperature of 60 to 100 °C and a vacuum of 10 to 80 kPa to obtain a crude dimethyl carbonate product. In the present invention, a salt solution is used for washing, and a solute that does not react with the electrolyte is dissolved in the salt solution, thereby increasing the density of the aqueous phase. This allows the electrolyte and aqueous phases to be stratified, with the electrolyte floating on top of the aqueous phase, thus achieving electrolyte-water stratification. Certain 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 distill a crude dimethyl carbonate product, and the carbonate ester product obtained after distillation has a 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 (1)
| Publication Number | Publication Date |
|---|---|
| MA65121A1 true MA65121A1 (en) | 2025-10-31 |
Family
ID=82641320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MA65121A MA65121A1 (en) | 2022-05-31 | 2024-03-27 | Method for efficiently recovering electrolyte of spent lithium-ion battery |
Country Status (8)
| Country | Link |
|---|---|
| CN (1) | CN114865134A (en) |
| DE (1) | DE112023000108T5 (en) |
| ES (1) | ES2995957B2 (en) |
| GB (1) | GB2622974A (en) |
| HU (1) | HU231714B1 (en) |
| MA (1) | MA65121A1 (en) |
| MX (1) | MX2023015296A (en) |
| WO (1) | WO2023231508A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759286B (en) * | 2022-05-30 | 2025-03-11 | 清华大学深圳国际研究生院 | A method for recycling waste electrolyte of lithium ion battery |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111454152A (en) * | 2020-06-22 | 2020-07-28 | 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 |
| CN112531227A (en) * | 2019-09-17 | 2021-03-19 | 天津理工大学 | Harmless recycling method for electrolyte in waste lithium ion battery |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2740243A1 (en) * | 1977-09-07 | 1979-03-15 | Bayer Ag | PROCESS FOR THE PRODUCTION OF DIALKYLCARBONATES |
| JP5360328B1 (en) * | 2013-06-04 | 2013-12-04 | Ｊｏｉｎｔエンジニアリング株式会社 | Method and apparatus for simultaneously recovering lithium salt for electrolyte and organic solvent from waste electrolyte |
| FR3022695A1 (en) * | 2014-06-18 | 2015-12-25 | Rhodia Operations | PROCESS FOR RECOVERING AN ELECTROLYTE SALT |
| CN114039116B (en) * | 2021-08-30 | 2024-12-17 | 雅邦绿色过程与新材料研究院南京有限公司 | Comprehensive recovery and regeneration method for lithium ion battery waste electrolyte |
| 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 ES ES202390224A patent/ES2995957B2/en active Active
- 2023-03-15 MX MX2023015296A patent/MX2023015296A/en unknown
- 2023-03-15 HU HUP2400023A patent/HU231714B1/en unknown
- 2023-03-15 GB GB2318911.1A patent/GB2622974A/en active Pending
- 2023-03-15 DE DE112023000108.1T patent/DE112023000108T5/en active Granted
- 2023-03-15 WO PCT/CN2023/081684 patent/WO2023231508A1/en not_active Ceased
-
2024
- 2024-03-27 MA MA65121A patent/MA65121A1/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111454152A (en) * | 2020-06-22 | 2020-07-28 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2995957A1 (en) | 2025-02-11 |
| GB202318911D0 (en) | 2024-01-24 |
| CN114865134A (en) | 2022-08-05 |
| MX2023015296A (en) | 2024-01-22 |
| DE112023000108T5 (en) | 2024-05-29 |
| HUP2400023A1 (en) | 2024-06-28 |
| WO2023231508A1 (en) | 2023-12-07 |
| GB2622974A (en) | 2024-04-03 |
| ES2995957B2 (en) | 2025-06-13 |
| GB2622974A8 (en) | 2024-05-15 |
| HU231714B1 (en) | 2025-11-28 |
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