| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Functional Defects in Electroceramic Materials
|
| Presentation Title |
Design of Functional Decompositions for Solid State Batteries |
| Author(s) |
Xin Li |
| On-Site Speaker (Planned) |
Xin Li |
| Abstract Scope |
The energy density of battery system is limited largely by the electrochemical window of the electrolyte. In this talk, it is shown that how mechanically-induced metastability can greatly widen the operational voltage window of solid state batteries based on ceramic solid electrolyte far beyond organic liquid electrolytes. It is further shown both experimentally and theoretically that beyond the voltage window at high voltage how the decompositions of solid electrolyte in the bulk and at the interface to cathodes are modulated via the mechanical constraint, design of which forms a route toward higher voltage all-solid-state batteries. Our work is supported by a combination of high-throughput density functional theory simulations, machine learning analysis, advanced experimental characterizations and electrochemical solid-state battery tests. |