Solvent versus Anion Chemistry: Unveiling the Structure-Dependent Reactivity in Tailoring Electrochemical Interphases for Lithium-Metal Batteries.

ABSTRACT: Electrolytes are critical for the reversibility of various electrochemical energy storage systems. The recent development of electrolytes for high-voltage Li-metal batteries has been counting on the salt anion chemistry for building stable interphases. Herein, we investigate the effect of the solvent structure on the interfacial reactivity and discover profound solvent chemistry of designed monofluoro-ether in anion-enriched solvation structures, which enables enhanced stabilization of both high-voltage cathodes and Li-metal anodes. Systematic comparison of different molecular derivatives provides an atomic-scale understanding of the unique solvent structure-dependent reactivity. The interaction between Li⁺ and the monofluoro (-CH₂F) group significantly influences the

SUBMITTER: Ruan D 

PROVIDER: S-EPMC10052229 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature