About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Ceramic Materials and Processing
|
Presentation Title |
Ce2S3-Li2S-P2S5 Glass-ceramic Electrolytes for All-solid-state Li-S Battery |
Author(s) |
Ruigang Wang, Amirhossein Mirtaleb |
On-Site Speaker (Planned) |
Ruigang Wang |
Abstract Scope |
A few Ce2S3-Li2S-P2S5 glass-ceramic electrolytes were prepared by a wet chemical process combined with annealing at different temperatures. The doping of Ce2S3 in Li2S-P2S5 leads to a significant enhancement in ionic conductivity by substituting a portion of P2S5. The as-prepared Li7P2.9Ce0.1S11 achieves an ionic conductivity of 1.9×10-4 S cm-1 at room temperature and maintains a wide electrochemical window up to 5 V (vs. Li/Li+), indicating an excellent stability. In addition, the Ce2S3 doped Li2S-P2S5 electrolyte exhibits enhanced stability when in contact with lithium metal anode, in comparison to the undoped Li7P3S11 counterpart. Using the annealed Li7P2.9Ce0.1S11 glass-ceramic as electrolyte, the assembled all-solid-state Li-S cell demonstrates a remarkable initial discharge capacity of 1540 mAh g-1. This study presents a novel Li2S-P2S5 glass-ceramic electrolyte with Ce2S3 doping for a potential application in all-solid-state Li-S batteries. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, Ceramics, |