| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
| Presentation Title |
Novel Volume Contractible SbBr3 Electrode as Negative Electrode for Li-ion Battery |
| Author(s) |
Ankit Dev Singh, Andrews Cyril, Ayan Dey, Ghanshyam Varshney, Srijan Sengupta |
| On-Site Speaker (Planned) |
Ankit Dev Singh |
| Abstract Scope |
Antimony (Sb) is a promising anode material for lithium-ion batteries due to its high volumetric (4200 mAh cm−3), gravimetric capacity (660 mAh g−1) and steady voltage range (0.87–0.91V). However, high-volume expansion (≈130%) during lithiation hampers its electrochemical performance. This study employs a novel volume contractible strategy by replacing pure Sb with SbBr3 as a preliminary anode material. The low density SbBr3 (4.35 g cm−3) combines with lithium to form LiBr and high-density Sb (6.684 g cm−3), contracting the volume by 78%. Therefore, despite the 130 % expansion for Sb in the next step, the electrode ends up with a 2% contraction in volume inhibiting delamination completely. LiBr, which is a byproduct, dissolves in the solvent, forming a porous Sb scaffold. This combination of two-step lithiation and scaffolded Sb electrode outperforms pure Sb electrodes delivering 345 mAh g−1 at 100 mA g−1 after 100 cycles |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, |