About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
14th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
Presentation Title |
Critical Metals Recovery from Recycled Lithium-ion Batteries |
Author(s) |
Meng Shi, Luis A. Diaz, John R. Klaehn, Aaron D. Wilson, Tedd E. Lister |
On-Site Speaker (Planned) |
Meng Shi |
Abstract Scope |
Aiming to recover critical materials from waste lithium-ion batteries (LIB), we have developed a series of operations to extract individual metals from the end-of life LIB based on their electrochemical (EC) and chemical properties. The EC-Leach process generates a metal-rich Cu-free leachate solution while isolating graphite and metallic copper. This leachate contains critical metals such as Li, Mn, Co, and Ni as well as impurities such as Al and Fe. A precipitation step was developed to effectively remove the impurities in preparation for separation stages such as solvent extraction or ion-exchange. A process has also been developed using electrodialysis coupled with a CO2 capture agent to recover lithium carbonate. In total, these activities have produced high purity NiSO4, CoSO4, MnCO3, and Li2CO3. Through these methods, we have developed and demonstrated options which can be coupled with traditional methods used in mining to recover critical materials from LIBs. |