| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
REWAS 2025: Sustainable End-of-Life Management and Recycling Solutions for Batteries, Wind Turbines, and Photovoltaics
|
| Presentation Title |
Synergistic Processing of Mixed LFP-NMC Black Mass for Improved Recycling Operations |
| Author(s) |
Marius Müller, Bengi Yagmurlu |
| On-Site Speaker (Planned) |
Marius Müller |
| Abstract Scope |
Recycling spent electric vehicle (EV) lithium-ion batteries (LiBs) is crucial due to sustainability, increasing complexity of cell chemistries, and varying binders. With the rise of LFP batteries and the use of mixed cathode materials, there's a need for flexible processing routes. Therefore, the synergistic effect of NMC-LFP black mass mixtures is investigated.
The combined processing aims to enhance the pre-treatment process enabling efficient recovery and separation of graphite via flotation and providing a concentrated cathode material for further hydrometallurgical processing. Additionally, thermal treatments are investigated to eliminate binders and organic solvents. The effect of volatile substances and binders on product qualities of the hydrometallurgical processes is compared with complete and incomplete pre-processing steps.
The optimized NMC-LFP cathode mixture is then leached to recover the critical battery metals with high efficiencies. Graphite is hydrometallurgically treated to increase purity and possible reusability. Ultimately, a flexible hydrometallurgical recycling process is designed and validated. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Recycling and Secondary Recovery, Hydrometallurgy |