| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2024
|
| Presentation Title |
Manipulating Electrolytes and Interfaces for Improved Electrochemical and Thermal Stability in Sodium-ion Batteries |
| Author(s) |
Susmita Sarkar, Partha P. Mukherjee |
| On-Site Speaker (Planned) |
Susmita Sarkar |
| Abstract Scope |
While the physicochemical changes in the battery electrode exert a significant influence on determining the battery performance, the nature of electrode-electrolyte interactions plays a crucial role in overall battery longevity and safety. Sodium-ion battery has a highly soluble electrode-electrolyte interphase (SEI), especially in carbonate electrolytes, which can trigger early electrochemical and thermal instability signature leading to cell-failure, making the investigation of interfaces increasingly critical. In this study, we aim to explore the inherently random and inhomogeneous characteristics of the SEI layer, elucidating how carbonate solvents influence the formation of this layer. Here, using cryo-FIB, our research delves into the impact of incorporating fluoroethylene carbonate (FEC) additive on sodium-metal batteries. We also investigated the thermal instability signatures of the batteries in different electrolytes and tried to decouple the role of interfaces in determining electrochemical and thermal stability. The foundational understanding of failure challenges (electrochemical and thermal) examined in this study can serve as a pathway to guide the development of next-generation batteries. |
| Proceedings Inclusion? |
Planned: |