| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Glasses and Optical Materials: Current Issues and Functional Applications
|
| Presentation Title |
Structure-property Relationship in Mixed Oxy-sulfide Glassy Solid Electrolyte Material: 0.58Li2S + 0.42 [(1–y)SiS2 + yLiPO3] |
| Author(s) |
Presley Philipp, Victor Torres III, Steve Warthen Martin |
| On-Site Speaker (Planned) |
Presley Philipp |
| Abstract Scope |
Mixed oxy-sulfide (MOS) glassy solid electrolytes (GSE) have proved to be a strong contender for use in solid-state batteries because of their high ionic conductivity and electrochemical stability. The MOS series 0.58Li2S + 0.42[(1-y)SiS2 + yLiPO3] (y = 0.0 – 0.5) was prepared via melt quench-synthesis. Differential scanning calorimetry (DSC) was used to determine the glass transition and crystallization temperature of these glasses. To characterize the structure, Fourier Transform Infrared Spectroscopy (FTIR), Raman Spectroscopy, and 29Si & 31P Magic Angle Spinning NMR spectroscopy (MAS NMR) were employed. Electrochemical Impedance Spectroscopy (EIS) was used to determine the d.c. Li+ ionic conductivity of the GSEs and show that the conductivity increases from an initial value of 1.03 x 10-3 for the y = 0 GSE to a maximum value of 1.33 x 10-3 S/cm for the y = 0.1 GSE, which is indicative of a positive mixed glass former effect. |