| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Glasses and Optical Materials: Current Issues and Functional Applications
|
| Presentation Title |
Structure-Property Relations in the 60Li2S + 30SiS2 + xLiSbO3 + (10-x)LiPO3 Glass System |
| Author(s) |
William Fettkether, Cody Lyle, Steve Warthen Martin |
| On-Site Speaker (Planned) |
William Fettkether |
| Abstract Scope |
The electrochemical and mechanical properties of glassy solid electrolytes (GSE) in the [Li2S - SiS2 - LiPO3] system make them promising candidates for inclusion in solid-state batteries. However, a significant challenge facing these sulfide-rich compositions is their reactivity towards oxygen and H2O. One strategy to address this issue is to substitute the P-S bond present in the glass structure with a less reactive alternative. The theory of hard and soft acids and bases (HSAB) predicts that the “softer” antimony cation will form a stronger bond with sulfur than the phosphorus cation, reducing the reactivity of the GSE. To test this hypothesis, LiSbO3 was synthesized and utilized to create samples in the 60Li2S + 30SiS2 + xLiSbO3 + (10-x)LiPO3 glass series. Thermal, chemical, electrochemical, and spectroscopic techniques were employed to characterize the effects increasing antimony content produces in these GSEs. |