| 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
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| Presentation Title |
Solubilities of lithium, nickel, and cobalt oxides in deep eutectic solvents |
| Author(s) |
Rejwanur Rahman, Andreas Schwetter, Sneha Jayaram, Jihye Kim |
| On-Site Speaker (Planned) |
Rejwanur Rahman |
| Abstract Scope |
Waste valorization plays an important role in the circular economy for energy transitions, by mitigating resource depletion and enabling critical metals recovery from waste streams. Spent lithium-ion batteries (LIBs) are increasingly recognized as a valuable secondary resource of essential metals such as lithium, cobalt, and nickel. However, current LIB recycling technologies suffer from substantial environmental footprints. Deep eutectic solvents (DESs) have emerged as green and robust solvents for dissolving cathode materials. This work aims to investigate the solubilities of lithium, nickel, and cobalt oxides in deep eutectic solvents. We synthesize 10 different DESs and characterize their physicochemical properties, including density, viscosity, heat capacity, thermal stability, and melting points. We further assess the solubilities of five battery metal oxides in these DESs across varying temperatures. Our findings reveal the dissolution behaviors of these oxides in DESs and contribute to the advancement of eco-friendly battery recycling technologies. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Recycling and Secondary Recovery, Extraction and Processing, Copper / Nickel / Cobalt |