非晶锂离子电导率的压力效应

苏昉; 许伟; 苏骏

doi:10.11858/gywlxb.1990.04.005

非晶锂离子电导率的压力效应

doi: 10.11858/gywlxb.1990.04.005

苏昉^1,,
许伟¹,
苏骏²

1.
中国科学技术大学基础物理中心，安徽合肥 230026；
2.
中国科学技术大学物理系，安徽合肥 230026

详细信息

通讯作者:
苏昉

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出版历程
- 收稿日期: 1990-02-19
- 修回日期: 1990-06-02
- 发布日期: 1990-12-05

Effect of Hydrostatic Pressure on Lithium Ionic Conductivity in Amorphous Li+ Conductor

SU Fang^1
,,
XU Wei¹,
SU Jun²

1.
Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China;
2.
Department of Physics, University of Science and Technology of China, Hefei 230026, China

More Information

Corresponding author: SU Fang

摘要

摘要: 本文准确测量了0~2.21 GPa流体静压力下整体片状非晶B2O3-0.7Li2O-0.7LiCl-0.10Al2O3及其粉末样品的离子电导率和激活体积。对整片非晶锂离子电导率的压力效应应用离子迁移通道的物理图象给出初步的微观解释。对非晶粉末样品离子电导率的压力效应，则发现是由体电导率、接触电导率及同相界面电导率变化的综合结果。高压实验表明，同相界面效应可使离子电导率提高2.5~16倍，该非晶材料还有潜力可进一步提高其离子电导率。
- 离子电导率 /
- 流体静高压 /
- 离子迁移通道
Abstract: Ionic conductivity and activation volume of the bulk piece and powder of amorphous lithium ionic conductor B2O3-0.7Li2O-0.7LiCl-0.10Al2O3 were investigated in the hydrostatic pressure range from 0 to 2.21 GPa. For the hydrostatic pressure dependence of ionic conductivity of the bulk piece, a preliminary microscopic explanation was given by considering the physical picture of ionic transport passages. Effect of hydrostatic pressure on ionic conductivity of the amorphous powder consists of three changes in bulk-conductivity, contact-conductivity and boundary layer-conductivity with the same phase. Specially, the latter can increase the ionic conductivity 2.5~16 times. The experimental results show that there is a possibility of further enhancing the ionic conductivity for above material.
- Ionic conductivity /
- hydrostatic high pressure /
- ionic transport passages