Expanding the Phase Space for Halide-Based Solid Electrolytes: Li-Mg-Zr-Cl Spinels.

ABSTRACT: Chloride-based solid electrolytes are intriguing materials owing to their high Li⁺ ionic conductivity and electrochemical compatibility with high-voltage oxide cathodes for all-solid-state lithium batteries. However, the leading examples of these materials are limited to trivalent metals (e.g., Sc, Y, and In), which are expensive and scarce. Here, we expand this materials family by replacing the trivalent metals with a mix of di- and tetra-valent metals (e.g., Mg²⁺ and Zr⁴⁺). We synthesize Li₂Mg_1/3Zr_1/3Cl₄ in the spinel crystal structure and compare its properties with the high-performing Li₂Sc_2/3Cl₄ that has been reported previously. We find that Li₂Mg_1/3Zr

SUBMITTER: Rom CL 

PROVIDER: S-EPMC11325553 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature