Atomic-scale study clarifying the role of space-charge layers in a Li-ion-conducting solid electrolyte.

ABSTRACT: Space-charge layers are frequently believed responsible for the large resistance of different interfaces in all-solid-state Li batteries. However, such propositions are based on the presumed existence of a Li-deficient space-charge layer with insufficient charge carriers, instead of a comprehensive investigation on the atomic configuration and its ion transport behavior. Consequently, the real influence of space-charge layers remains elusive. Here, we clarify the role of space-charge layers in Li_0.33La_0.56TiO₃, a prototype solid electrolyte with large grain-boundary resistance, through a combined experimental and computational study at the atomic scale. In contrast to previous speculations, we do not observe the Li-deficient space-charge layers commonly bel

SUBMITTER: Gu Z 

PROVIDER: S-EPMC10039002 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature