All-solid-state lithium secondary batteries using the 75Li2S • 25P2S5 glass and the 70Li2S • 30P2S5 glass-ceramic as solid electrolytes

被引：161
作者：
Ohtomo, Takamasa [1 ,2 ]
Hayashi, Akitoshi [1 ]
Tatsumisago, Masahiro [1 ]
Tsuchida, Yasushi [2 ]
Hama, Shigenori [2 ]
Kawamoto, Koji [2 ]
机构：
[1] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Naka Ku, Sakai, Osaka 5998531, Japan
[2] Toyota Motor Co Ltd, Battery Res Div, Higashifuji Tech Ctr, Susono, Shizuoka 4101193, Japan
来源：
JOURNAL OF POWER SOURCES | 2013年 / 233卷
关键词：
All-solid-state battery; Sulfide solid electrolyte; Chemical stability; Lithium ion conductivity; Interface; LI2S-P2S5; SYSTEM; CONDUCTOR; LICOO2;
D O I：
10.1016/j.jpowsour.2013.01.090
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The 70Li(2)S center dot 30P(2)S(5) glass-ceramic showed high ion conductivity of 1.5 x 10(-3) S cm(-1) at room temperature. The 75Li(2)S center dot 25P(2)S(5) glass showed ion conductivity of 5.0 x 10(-4) S cm(-1) at room temperature and high chemical stability. All-solid-state C/LiCoO2 cells using those materials as solid electrolytes were assembled. Their cell performance were compared. The cell using the 70Li(2)S center dot 30P(2)S(5) glass-ceramic showed superior rate performance to the cell using the 75Li(2)S center dot 25P(2)S(5) glass. On the other hand, the cell using the 75Li(2)S center dot 25P(2)S(5) glass showed superior cycle performance to the cell using the 70Li(2)S center dot 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. (C) 2013 Elsevier B.V. All rights reserved.
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页码：231 / 235
页数：5
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