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

ABSTRACT: In order to fully understand the lithium-ion transport mechanism in solid electrolytes for batteries, not only the periodic lattice but also the non-periodic features that disrupt the ideal periodicity must be comprehensively studied. At present only a limited number of non-periodic features such as point defects and grain boundaries are considered in mechanistic studies. Here, we discover an additional type of non-periodic feature that significantly influences ionic transport; this feature is termed a "single-atom-layer trap" (SALT). In a prototype solid electrolyte Li_0.33La_0.56TiO₃, the single-atom-layer defects that form closed loops, i.e., SALTs, are found ubiquitous by atomic-resolution electron microscopy. According to ab initio calculations, these de

SUBMITTER: Zhu F 

PROVIDER: S-EPMC7156726 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature