Chemistry

Single-atom-layer traps in a solid electrolyte for lithium batteries

F. Zhu, M. S. Islam, et al.

This research conducted by Feng Zhu, Md Shafiqul Islam, Lin Zhou, Zhenqi Gu, Ting Liu, Xinchao Wang, Jun Luo, Ce-Wen Nan, Yifei Mo, and Cheng Ma unveils the critical role of single-atom-layer traps (SALTs) in hindering lithium-ion transport in solid electrolytes. Discover how these microscopic defects impact ionic conductivity in Li0.33La0.56TiO3 and reveal a new perspective on material performance.

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Abstract

To fully understand lithium-ion transport in solid electrolytes, both periodic lattice and non-periodic features must be studied. This paper discovers "single-atom-layer traps" (SALTs) – closed loops of single-atom-layer defects – as a significant influence on ionic transport in Li0.33La0.56TiO3. Atomic-resolution electron microscopy reveals their ubiquity, and ab initio calculations show they severely degrade conductivity by isolating large material volumes from ionic transport.

Publisher

Nature Communications

Published On

Apr 14, 2020

Authors

Feng Zhu, Md Shafiqul Islam, Lin Zhou, Zhenqi Gu, Ting Liu, Xinchao Wang, Jun Luo, Ce-Wen Nan, Yifei Mo, Cheng Ma

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