Integrating Lithium Sulfide as a Single Ionic Conductor Interphase for Stable All-Solid-State Lithium-Sulfur Batteries.

ABSTRACT: As a very prospective solid-state electrolyte, Li₁₀GeP₂S₁₂ (LGPS) exhibits high ionic conductivity comparable to liquid electrolytes. However, severe self-decomposition and Li dendrite propagation of LGPS will be triggered due to the thermodynamic incompatibility with Li metal anode. Herein, by adopting a facile chemical vapor deposition method, an artificial solid electrolyte interphase composed of Li₂S is proposed as a single ionic conductor to promote the interface stability of LGPS toward Li. The good electronic insulation coupled with ionic conduction property of Li₂S effectively blocks electron transfer from Li to LGPS while enabling smooth passage of Li ions. Meanwhile, the generated Li₂S layer remains good interface

SUBMITTER: Wu X 

PROVIDER: S-EPMC11220677 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature