Flame-retardant electrolytes with electrochemically-inert and weakly coordinating dichloroalkane diluents for practical lithium metal batteries.

ABSTRACT: The next-generation of lithium metal batteries urgently require electrolytes that simultaneously possess low-cost, high-safety, wide-temperature operating range, high electrochemical stability and good electrode-electrolyte interphases formation ability. Here we present a flame-retardant electrolyte by introducing electrochemically-inert and weakly coordinating dichloroalkane diluents in triethyl phosphate-based high-concentration electrolyte. We systematically investigate the effects of dichloroalkane diluents with diverse carbon chain lengths on the Li⁺ solvation structure, redox behavior, and lithium metal interfacial chemistry in the electrolyte. Consequently, 1,3-dichloropropane, which shows the favorable electrochemical inertness, weakly coordinating ability and wide liqui

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12630897 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature