Stability and Formation of the Li₃PS₄/Li, Li₃PS₄/Li₂S, and Li₂S/Li Interfaces: A Theoretical Study.

ABSTRACT: Solid electrolytes have shown superior behavior and many advantages over liquid electrolytes, including simplicity in battery design. However, some chemical and structural instability problems arise when solid electrolytes form a direct interface with the negative Li-metal electrode. In particular, it was recognized that the interface between the β-Li₃PS₄ crystal and lithium anode is quite unstable and tends to promote structural defects that inhibit the correct functioning of the device. As a possible way out of this problem, we propose a material, Li₂S, as a passivating coating for the Li/β-Li₃PS₄ interface. We investigated the mutual affinity between Li/Li₂S and Li₂S/β-Li₃PS₄ interfaces by

SUBMITTER: Marana NL 

PROVIDER: S-EPMC10753886 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature