Formation of Li2S–P2S5 Solid Electrolyte from N-Methylformamide Solution

Formation of Li2S–P2S5 Solid Electrolyte from N-Methylformamide Solution

Li2S–P2S5 solid electrolyte (SE) powders were successfully reprecipitated from a liquid phase. Powders of 80Li2S·20P2S5 (mol %) SE originally prepared by mechanical milling were dissolved in N-methylformamide (NMF) and a homogeneous solution was obtained. The NMF solution was dried at 150 °C for 3 h...

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Veröffentlicht in:Chemistry letters 2013-11, Vol.42 (11), p.1435-1437
Hauptverfasser: Teragawa, Shingo, Aso, Keigo, Tadanaga, Kiyoharu, Hayashi, Akitoshi, Tatsumisago, Masahiro
Format: Artikel
Sprache:eng
Schlagworte:
Crystal structure
Dissolution
Formations
Ionic conductivity
Mechanical milling
Precipitates
Precipitation
Solid electrolytes
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Zusammenfassung:Li2S–P2S5 solid electrolyte (SE) powders were successfully reprecipitated from a liquid phase. Powders of 80Li2S·20P2S5 (mol %) SE originally prepared by mechanical milling were dissolved in N-methylformamide (NMF) and a homogeneous solution was obtained. The NMF solution was dried at 150 °C for 3 h under vacuum to obtain precipitates. The main structural unit in the obtained powder was PS43−. The crystalline phase of the powders was confirmed to be Li3PS4, and ionic conductivity was 2.6 × 10−6 S cm−1.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.130726