Abstract
In this study, a low-viscosity and reducing acidic deep eutectic solvent is synthesized from ethylene glycol and malonic acid for leaching valuable metals from spent lithium-ion battery cathode materials. The influence of various experimental parameters on the efficiency of metal leaching is systematically investigated. Under optimal conditions, the leaching efficiency of Li, Ni, Co, and Mn is ca. 100%. In addition, the mechanism and leaching kinetics of the system are investigated. The transition metal ions are reduced to a lower valence state in the presence of the tested deep eutectic solvent; resulting in efficient leaching, which is controlled by the chemical reaction. Separating Li+ from transition metal ions is then achieved by recovering the transition metal ions from the leaching solution by co-precipitation. The co-precipitated products are used as precursors for preparing cathode materials and producing NCM523 coin cells with good electrochemical performance.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
