材料科学
锂(药物)
电解质
陶瓷
固态
锂电池
电池(电)
电化学
阳极
作者
Takamasa Ohtomo,Akitoshi Hayashi,Masahiro Tatsumisago,Yasushi Tsuchida,Shigenori Hama,Koji Kawamoto
标识
DOI:10.1016/j.jpowsour.2013.01.090
摘要
Abstract The 70Li 2 S·30P 2 S 5 glass–ceramic showed high ion conductivity of 1.5 × 10 −3 S cm −1 at room temperature. The 75Li 2 S·25P 2 S 5 glass showed ion conductivity of 5.0 × 10 −4 S cm −1 at room temperature and high chemical stability. All-solid-state C/LiCoO 2 cells using those materials as solid electrolytes were assembled. Their cell performance were compared. The cell using the 70Li 2 S·30P 2 S 5 glass–ceramic showed superior rate performance to the cell using the 75Li 2 S·25P 2 S 5 glass. On the other hand, the cell using the 75Li 2 S·25P 2 S 5 glass showed superior cycle performance to the cell using the 70Li 2 S·30P 2 S 5 glass–ceramic. It was suggested that solid electrolytes in all-solid-state batteries preferably had both high ion conductivity and high chemical stability.
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