About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2025
|
Presentation Title |
High-capacity, low-cost calcium-antimony battery in molten salt electrolytes |
Author(s) |
Sanghyeok Im, Kelly Varnell, Peyman Asghari-Rad, Hojong Kim |
On-Site Speaker (Planned) |
Hojong Kim |
Abstract Scope |
A new type of high-temperature liquid metal battery (LMB) was investigated by pairing the low-cost, abundant materials of Ca (anode) and solid Sb (cathode) in a molten salt electrolyte. This new chemistry demonstrates a substantial step forward in batteries for grid-scale energy storage, overcoming the capacity limitations of prior three-liquid-layer LMB chemistries, resulting in about three times higher discharge capacity than the previously achieved LMB chemistry. Our investigation reveals that this remarkable discharge capacity is associated with the spontaneous fragmentation of Sb during cycling and the self-assembly of a porous, electronically connected cathode network. These results provide a strong foundation for the continued development of this system to advance its potential for implementation as an energy storage system as part of a decarbonized electric grid. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, High-Temperature Materials, Sustainability |