About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Recycling and Environmental Technologies
|
| Presentation Title |
Recovery of Valuable Metals from Spent Lithium-Ion Batteries by Electrolysis of NaCl Solution: Process Optimization, Regenerated Cathode Materials, and Environmental Impact Assessment |
| Author(s) |
Shuang Xu, Ganming Cao, Feixiang Peng, Zeyu Huang, Huamei Duan, Dengfu Chen |
| On-Site Speaker (Planned) |
|
| Abstract Scope |
By 2030, retired lithium-ion batteries (LIBs) are projected to generate over 2 million metric tons of waste annually. The secondary recovery of LIBs helps alleviate the pressure on critical resource supply while minimizing environmental contamination. This work proposes a green process for recycling and regenerating LIBs and co-producing hydrogen energy based on the electrolysis of NaCl solution in an H-type double-chamber electrolytic cell. The electrolyte can be derived from treated seawater, reduces cost and environmental burden. Process parameters were optimized to maximize metal leaching efficiency, and structural evolution during leaching was analyzed using multi-technique characterization. Finally, cathode materials are regenerated using the precipitate recovered from the leachate and the electrolytic cell. Additionally, a life cycle assessment (LCA) was conducted on the environmental impacts of the leaching process. This study achieves a closed-loop process for spent LIBs cathodes involving metal recovery, green hydrogen production, material regeneration, and electrolyte recycling. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Recycling and Secondary Recovery, Other, Other |