| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
| Presentation Title |
Improved electrochemical performance in sodium-ion batteries using carbon-coated, Fe and Cr co-doped sodium vanadium fluorophosphate as cathode material |
| Author(s) |
Sanchayan Mahato, Koushik Biswas |
| On-Site Speaker (Planned) |
Sanchayan Mahato |
| Abstract Scope |
Sodium-ion batteries (SIBs) have garnered significant attention as a cost-effective alternative to lithium-ion batteries [1]. Na3V2(PO4)F3 (NVPF) has emerged as a highly promising cathode material due to its unique open-channel structure, exceptional ionic conductivity, and high average voltage [2]. However, its high vanadium cost and poor electronic conductivity are significant drawbacks [3]. To address these issues, carbon-coated, Fe and Cr co-doped NVPF was synthesized using a rota tumbler-assisted sol-gel method, and the electrochemical performance of the half-cells was evaluated. The optimized cathode material achieved an impressive initial capacity of 119.37 mAhg-1 at C/10 and 100.13 mAhg-1 at 1 C. This material demonstrated superior capacity retention of 88.58% after 500 cycles at 1 C. Our study indicates that carbon-coated, Fe and Cr co-doped NVPF can be considered a promising candidate for low-cost, high-performance cathode material for practical applications in SIBs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, |