About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Energy Technology 2026: Advancement in Energy Materials - Theory, Simulation, Characterization, Application
|
| Presentation Title |
Thermally Induced Interfacial Improvements in Solid Polymer Electrolytes |
| Author(s) |
Parya Teymoory, Caiwei Shen |
| On-Site Speaker (Planned) |
Parya Teymoory |
| Abstract Scope |
Solid polymer electrolytes (SPEs) are promising for next-generation flexible and structural energy storage devices, yet limited interfacial contact with electrodes hampers performance. This study explores how thermal modulation impacts interfacial contact and electric double-layer (EDL) capacitance in PLA, PMMA, and PEO SPEs containing 20% LiTFSI. Real-time capacitance tracking during stepwise heating and cooling reveals two key transitions: one near the glass transition (Tg), enhancing polymer mobility, and another near melting (Tm), improving wetting and adhesion. XRD and SEM analyses show crystallinity loss during heating and partial recovery on slow cooling, especially in PLA. Fast cooling preserves some adhesion but reduces wetting, lowering capacitance. PEO, with Tg below room temperature, shows a single capacitance jump near Tm. These findings highlight the importance of thermal history, crystallinity, and chain mobility in interfacial performance, offering insights for thermally tunable, high-performance SPE-based systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Polymers, Energy Conversion and Storage, Composites |