Li_1.6AlCl_3.4S_0.6: a low-cost and high-performance solid electrolyte for solid-state batteries.

ABSTRACT: Solid electrolytes (SEs) are crucial for advancing next-generation rechargeable battery technologies, but their commercial viability is partially limited by expensive precursors, unscalable synthesis, or low ionic conductivity. Lithium tetrahaloaluminates offer an economical option but exhibit low Li⁺ conductivities with high activation energy barriers. This study reports the synthesis of lithium aluminum chalcohalide (Li_1.6AlCl_3.4S_0.6) using inexpensive precursors via one-step mechanochemical milling. The resulting Cl-S mixed-anion sublattice significantly improves the ionic conductivity from 0.008 mS cm^-1 for LiAlCl₄ to 0.18 mS cm^-1 for Li_1.6AlCl_3.4S_0.6 at 25 °C. Structura

SUBMITTER: Poudel TP 

PROVIDER: S-EPMC11707523 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature