Customized composition of lithium metal solid-electrolyte interphase by electric field modulation of anion motion direction.

ABSTRACT: In high-voltage lithium-metal battery systems, electrolyte characteristics are crucial for achieving the optimal balance between non-flammability and battery performance. Herein, an electrolyte system based on triethyl phosphate solvent with lithium oxide difluoroborate, lithium tetrafluoroborate and lithium nitrate as solutes is proposed. TEP, as the sole solvent, ensures the inherent non-flammability of the electrolyte, while the solutes LiODFB, LiBF₄ and LiNO₃, benefit from the different binding energies of the three anions and lithium ions, to optimize the structure of the solvation shell and direction of anion movement, thereby forming a favorable interfacial phase. Consequently, solid electrolyte interphase enriched with B-O and Li₃N in the inner laye

SUBMITTER: Xu S 

PROVIDER: S-EPMC12917020 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature