About this Abstract |
Meeting |
2026 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Recycling and Environmental Technologies
|
Presentation Title |
Selective Lithium Recovery from LFP Anode Powder via Thermal Pre-Treatment |
Author(s) |
Om Shankar Dinkar, Kyoungkeun Yoo, Manis Kumar Jha |
On-Site Speaker (Planned) |
Om Shankar Dinkar |
Abstract Scope |
Sustainable recovery of lithium (Li) from spent lithium-Ion batteries (LIBs) is crucial for reducing raw material dependency. This study presents a microwave-assisted roasting followed by selective Li leaching from LFP anode powder containing mainly Li, copper (Cu), and graphite. During extended cycling, part of the lithium becomes entrapped in the graphite matrix or consumed in solid electrolyte interphase (SEI) layers, making it inaccessible through conventional leaching. The microwave treatment enhances Li availability by converting it into water or weak-acid leachable forms with low energy consumption. Subsequent leaching in water at 45 ⁰C for 4 hours with 100 g/L pulp density achieves over 95% lithium leaching, with negligible Cu dissolution. Reported approach minimizes chemical use, avoids strong acids, and leverages graphite’s excellent microwave absorption properties to enhance process efficiency. Overall, this process offers a low-impact, selective, and scalable solution for Li recovery from anode materials, contributing to environmentally friendly LIBs recycling. |
Proceedings Inclusion? |
Undecided |
Keywords |
Recycling and Secondary Recovery, Hydrometallurgy, Extraction and Processing |