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Solid-state Graft Copolymer Electrolytes for Lithium Battery Applications
Published on: August 12, 2013
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Green and efficient recycling method for spent Ni-Co-Mn lithium batteries utilizing multifunctional deep eutectic
Yi Luo1, Ying Deng1, Huiying Shi1
1School of Minerals Processing and Bioengineering, Central South University, China.
Journal of Environmental Management
|December 16, 2023
Summary
This study introduces a green deep eutectic solvent (DES) for efficient lithium-ion battery recycling. The novel DES effectively recovers critical metals like lithium, nickel, cobalt, and manganese, offering a sustainable alternative.
Area of Science:
- Materials Science
- Green Chemistry
- Electrochemistry
Background:
- Growing volume of discarded lithium-ion batteries (LIBs) presents a significant environmental challenge.
- Efficient and eco-friendly methods for recovering valuable metals from spent LIBs are crucial.
- Traditional solvent processes often involve harsh chemicals and are not sustainable.
Purpose of the Study:
- To develop and evaluate a novel, multifunctional deep eutectic solvent (DES) for the efficient leaching of transition metals from waste LIBs.
- To investigate the mechanism of metal ion extraction using natural molecules.
- To provide a sustainable and environmentally friendly alternative for LIB recycling.
Main Methods:
- Utilized a deep eutectic solvent (DES) composed of dimethyl-beta-propiothetin (DMPT) and ethylene glycol (EG).
- Employed Density Functional Theory (DFT) calculations to explore DES microstructure and metal ion interactions.
- Performed leaching experiments to determine the efficiency of metal recovery.
Main Results:
- Achieved high leaching rates for Li (99.59%), Ni (99.28%), Co (99.04%), and Mn (99.45%) using the DMPT-EG DES.
- DFT calculations revealed the active site in DES and its binding affinity with metal ions (Mn > Co > Ni).
- The process avoids volatile acids, demonstrating a greener approach to metal extraction.
Conclusions:
- The developed multifunctional DES offers an efficient and sustainable method for recovering valuable metals from spent LIBs.
- This green solvent system presents a promising alternative to traditional, hazardous methods for battery recycling.
- The study highlights the potential of natural molecules in designing effective DES for critical metal recovery.
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