| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Functional Defects in Electroceramic Materials
|
| Presentation Title |
Let Thermodynamics do Interfacial Engineering |
| Author(s) |
Jian Luo |
| On-Site Speaker (Planned) |
Jian Luo |
| Abstract Scope |
This talk will review and discuss the emerging opportunities to utilize the equilibrium formation of 2D interfacial phases to tailor batteries and solid electrolytes. In contrast to traditional kinetically-controlled atomic layer deposition and other interfacial engineering methods, these 2D interfacial phases form spontaneously at thermodynamic equilibria; they are also termed as “complexions” to differentiate them from thin layers of 3D bulk phases whose thicknesses are controlled by kinetic or processing parameters. In this talk, I will first introduce the basic concepts and related interfacial thermodynamics. Some of earlier studies on thermodynamics based interfacial engineering of battery cathodes and solid electrolytes [Energy Storage Materials 21: 50 (2019)] will be briefly reviewed. Recent ongoing work on nanostructured battery anode materials will be further presented. If time permits, a recent discovery of electrochemically induced grain boundary phase-like (complexion) transition [arXiv: 2012.15862] will also be discussed. |