Stacking Faults Assist Lithium-Ion Conduction in a Halide-Based Superionic Conductor.

ABSTRACT: In the pursuit of urgently needed, energy dense solid-state batteries for electric vehicle and portable electronics applications, halide solid electrolytes offer a promising path forward with exceptional compatibility against high-voltage oxide electrodes, tunable ionic conductivities, and facile processing. For this family of compounds, synthesis protocols strongly affect cation site disorder and modulate Li⁺ mobility. In this work, we reveal the presence of a high concentration of stacking faults in the superionic conductor Li₃YCl₆ and demonstrate a method of controlling its Li⁺ conductivity by tuning the defect concentration with synthesis and heat treatments at select temperatures. Leveraging complementary insights from variable temperature s

SUBMITTER: Sebti E 

PROVIDER: S-EPMC8991002 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature