About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Energy Materials for Sustainable Development
|
Presentation Title |
L-18: Thin-Film Glassy Solid Electrolytes Enabling High Energy Density Li Solid State Batteries |
Author(s) |
Steve Warthen Martin |
On-Site Speaker (Planned) |
Steve Warthen Martin |
Abstract Scope |
Fast ion conducting glasses have long been considered as alternatives to flammable liquid electrolytes in Li batteries. However, for such glassy solid electrolytes (GSEs) studied so far, they have lacked the unique combination of required electrochemical properties for use as a solid electrolyte with the equally important requirements of viscoelastic behavior and resistance to crystallization to form them into thin films suitable for high ion conductivity separators. In this first ever report of thin film fast ion conducting glasses made by viscoelastic deformation processing of redrawing glass preforms, we report new compositions where we have broken this long standing paradigm of high conductivity combined with high alkali salt concentration but poor glass formability and will summarize our efforts to produce thin films of Li ion conducting glasses and test in them in symmetric and asymmetric cells. |