Lithium ionic conduction in LiAlO2-based oxides at elevated temperatures

被引:4
作者
Shimura, T [1 ]
Murahashi, D [1 ]
Iwahara, H [1 ]
Yogo, T [1 ]
机构
[1] Nagoya Univ, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
来源
SOLID STATE IONICS: TRENDS IN THE NEW MILLENNIUM, PROCEEDINGS | 2002年
关键词
D O I
10.1142/9789812776259_0072
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The ionic conduction behaviors of LiAlO2-based solid solutions, Li1+xAl1-xMgxO2, Li1-x, Al1-x (Si or Ge)(x)O-2 were investigated. In Mg-added samples, the conductivity decreased with increasing x. Si- or Ge-doping enhanced the conductivity. The activation energy increased by Mg-doping, whereas it showed no changes in Si or Ge doped solutions. The influence of the ionic size of doped cations on the conductivity was very small. Electrochemical experiments revealed that the dominant conductive carriers in these oxides were lithium ions.
引用
收藏
页码:613 / 620
页数:8
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