Enhancing Long Stability of Solid-State Batteries Through High-Energy Ball Milling-Induced Decomposition of Sulfide-Based Electrolyte to Sulfur.

ABSTRACT: Metal sulfides are increasingly favored as cathode materials in all-solid-state batteries (ASSBs) due to their high energy density, stability, affordability, and conductivity. Metal sulfides often exhibit capacities exceeding their theoretical limits, a phenomenon that remains not fully understood. In this study, it reveals that this phenomenon is primarily due to the sulfur decomposition from sulfide-based electrolyte. By employing the high-energy ball milling (HEBM) technique, the deposition of sulfide-based electrolyte onto sulfur is intentionally promoted, resulting in higher charge capacities compared to the discharge capacities and surpass theoretical limits of metal sulfides. Using chromium sulfide (Cr₂S₃) as the active material, the sulfur decomposed from sulf

SUBMITTER: Qian X 

PROVIDER: S-EPMC11602688 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature