| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
High Temperature Electrochemistry: An FMD Symposium Honoring Uday B. Pal
|
| Presentation Title |
Assessment of Phase Evolution and Cycling Performance for the Li-Sb-Sn Liquid Metal Battery System with Mixed Cation Molten Salt Electrolytes |
| Author(s) |
Kelly Varnell, Sanghyeok Im, Peyman Asghari-Rad, Hojong Kim |
| On-Site Speaker (Planned) |
Kelly Varnell |
| Abstract Scope |
In recent years, liquid metal batteries (LMBs) have been of great interest for grid-scale energy storage due to their scalability, predicted longevity and excellent transport and kinetic properties. Due to its low density, high electropositivity, and small ionic radius, lithium is of great interest as an active component for these systems (e.g., Li(l)|LiF-LiCl-LiBr|Sb-Sn(l)). However, lithium-based molten salts are less economically viable than other alkali or alkaline earth metal salts (e.g., KCl, SrCl2, CaCl2) which makes it more difficult for LMBs to compete with current energy storage or carbon-based energy technologies. To assess the impact of mixed cation molten salts and the resulting evolution of positive electrode phase behavior during cell cycling on the performance of Li-based LMB systems, techniques such as coulometric titration, I-V analysis, electrochemical impedance spectroscopy, energy dispersive spectroscopy, and X-ray diffraction are employed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Energy Conversion and Storage, High-Temperature Materials, Characterization |