| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials and Chemistry for Molten Salt Systems
|
| Presentation Title |
Effect of Microwave on the Performance of Regenerated Spent LiFePO4 Batteries in Molten Salt System |
| Author(s) |
Yunke Wang |
| On-Site Speaker (Planned) |
Yunke Wang |
| Abstract Scope |
Recycling from spent LiFePO4 batteries is significant to prevent resource depletion and environmental pollution. The microwave technology is combined with the direct regeneration process to simplify the recovery process to a great extent. Utilizing the low eutectic point advantage of eutectic mixtures to reduce reaction temperature, concurrently, under the action of microwaves, the activated carbon in spent batteries is oxidized to CO, and the formed reducing atmosphere can effectively prevent the oxidation of Fe2+. In this study, effect of several variables on the properties of regenerated LiFePO4 was investigated. Additionally, characterization of XRD, XPS were employed to investigate the regenerated mechanism. It is suggested that the regenerated cathodes exhibited the optimal performances through microwave at 500 W, 20 min, revealing its best discharge capacity of 160.4 mAh g-1 at 0.1C. The process is economically feasible and environmentally friendly and has great potential for the industrial-scale recycling of spent LiFePO4 batteries. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Energy Conversion and Storage, Pyrometallurgy |