One-dimensional stringlike cooperative migration of lithium ions in an ultrafast ionic conductor

被引：76

作者：

Xu, M. ^{[1
]}

Ding, J. ^{[1
]}

Ma, E. ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 03期

关键词：

TRANSITION;

D O I：

10.1063/1.4737397

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In the recently developed ultrafast Li-ion conductor, Li10GeP2S12, our ab initio and molecular dynamics simulations have revealed a unique Li ion transport mechanism. The Li ions are discovered to migrate in a highly correlated fashion, stemming from the large Coulombic interaction between the mobile ions. The stringlike cooperative ionic motion is found to entail a rather low energy barrier, contributing to the unusually high ionic conductivity of this solid-state electrolyte. Such a collective migration mechanism may also be operative in other Li-ion battery electrolytes with high concentrations of mobile Li ions. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4737397]

引用

页数：3

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