| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Materials for Energy Conversion and Storage 2024
|
| Presentation Title |
Mechanistic Analysis of Interface Instability in Solid-state Batteries |
| Author(s) |
Bairav Sabarish S. Vishnugopi, Kaustubh G. Naik, Partha P. Mukherjee |
| On-Site Speaker (Planned) |
Bairav Sabarish S. Vishnugopi |
| Abstract Scope |
Solid-state batteries (SSBs) that utilize a Li metal anode can potentially enable next-generation energy storage devices with high energy density and enhanced safety when compared to current Li-ion batteries. However, the advancement of SSBs still requires a comprehensive understanding of the electro-chemo-mechanical, transport and morphological attributes of various solid-solid interfaces in the system. The presence of myriad heterogeneities such as grain boundaries, surface defects, voids and interphases critically influence the mechanisms of failure onset and degradation. In this presentation, the mechanistic interactions underlying the nucleation and growth dynamics of interfacial voids including the coupled role of reaction kinetics, Li mechanics and vacancy transport will be discussed. The asymmetric nature of the competing mechanisms affecting interfacial stability during plating and stripping, and their dependence on the spatial distribution of temperature/mechanical stress will be investigated. The role of operating conditions such as external pressure on modulating the propensity of void formation and Li filament evolution across different inorganic solid electrolytes will be examined. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing |