About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2026
|
| Presentation Title |
Heterostructured Anode Materials for High-Performance Sodium-Ion Batteries |
| Author(s) |
Sang-Ok Kim |
| On-Site Speaker (Planned) |
Sang-Ok Kim |
| Abstract Scope |
Sodium-ion batteries (SIBs) are considered promising alternatives to lithium-ion systems due to sodium’s abundance and low cost. However, conventional hard carbon anodes offer limited capacity, prompting interest in alloy- and conversion-type materials such as Sn and MoS₂. Despite their high theoretical capacities, these materials face challenges like large volume expansion, sluggish kinetics, and unstable interfaces during cycling. To overcome these issues, we developed composite anodes by embedding high capacity materials into a porous silicon oxycarbide (SiOC) framework. SiOC provides mechanical stability and favorable surface reactivity, helping to mitigate degradation. The composites were synthesized via heat treatment of precursor mixtures dispersed in silicone oil. Electrochemical tests and post-mortem analyses confirmed enhanced sodium storage performance and improved cycling stability. These results suggest that SiOC-based heterostructures offer a viable pathway toward developing high-performance anode materials for next-generation SIBs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Composites, Energy Conversion and Storage, |