| 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 |
Reductive leaching of black mass from lithium-ion batteries and recovery of copper reductant |
| Author(s) |
Arundhati Jena, Sreeya Chidere, Chenna Rao Borra, Mehmet Ali Recai Onal, Shaikh Saida, Prakash Venkatesan |
| On-Site Speaker (Planned) |
Arundhati Jena |
| Abstract Scope |
Decarbonization of the transportation sector has led to an increase in the adoption of Lithium-ion Batteries or LiBs. Efficient recycling of Li-ion batteries is essential to conserve resources and address challenges related to the sustainable extraction and supply of critical battery materials like Li, Ni, Mn, and Co. Hydrometallurgical processes often employ expensive reductants to dissolve transition metals with higher oxidation states in the cathode active mass. To address this issue, the current study proposes an alternative and cost-effective approach by utilizing copper extracted from spent batteries as a reducing agent, replacing costly options like H2O2, glucose, and citric acid. The recovered copper is subsequently recycled through electrowinning for reuse in the leaching process. The study investigates the impact of different conditions such as temperature, H2SO4 concentration, and Cu quantity on dissolution of black mass. Under optimized conditions, a dissolution rate of > 98% can be achieved in this flowsheet. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Recycling and Secondary Recovery, Hydrometallurgy, Electrometallurgy |