A sulphide lithium super ion conductor is superior to liquid ion conductors for use in rechargeable batteries

被引：1086
作者：
Seino, Yoshikatsu [1 ]
Ota, Tsuyoshi [1 ]
Takada, Kazunori [2 ]
Hayashi, Akitoshi [3 ]
Tatsumisago, Masahiro [3 ]
机构：
[1] Idemitsu Kosan Co Ltd, Chiba 2990293, Japan
[2] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan
[3] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Sakai, Osaka 5998531, Japan
来源：
ENERGY & ENVIRONMENTAL SCIENCE | 2014年 / 7卷 / 02期
关键词：
ELECTROLYTES; GLASSES; SINTERABILITY; SYSTEM;
D O I：
10.1039/c3ee41655k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We report that a heat-treated Li2S-P2S5 glass-ceramic conductor has an extremely high ionic conductivity of 1.7 x 10(-2) S cm(-1) and the lowest conduction activation energy of 17 kJ mol(-1) at room temperature among lithium-ion conductors reported to date. The optimum conditions of the heat treatment reduce the grain boundary resistance, and the influence of voids, to increase the Li+ ionic conductivity of the solid electrolyte so that it is greater than the conductivities of liquid electrolytes, when the transport number of lithium ions in the inorganic electrolyte is unity.
引用
收藏
页码：627 / 631
页数：5
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