Li5.4PS4.4Cl1.4F2@0.2LiF Powder with Core-Shell Structure as Solid-State Electrolyte for Long-Cycling Lithium-Ion Battery, 10-50 g/bottle, CLCLIBSSELPSCF

Li5.4PS4.4}Cl1.4F2@0.2LiF is an advanced core-shell structured solid electrolyte powder designed to eliminate interfacial degradation and parasitic side reactions in high-energy All-Solid-State Lithium Batteries (ASSLBs). (1) Core Properties (Li5.4PS4.4}Cl1.4F2@0.2LiF): A heavily halogen- and fluorine-substituted argyrodite/thio-halide framework that exhibits exceptional room-temperature ionic conductivity (~ 10^{-3} S/cm range) and enhanced thermodynamic stability compared to stoichiometric binary sulfides. (2) Shell Function (0.2LiF): A passivating, electronically insulating yet ionically conductive lithium fluoride (LiF) nano-layer coated uniformly onto the core particles. This shell suppresses direct contact between the reactive sulfide core and high-voltage cathode surfaces, drastically expanding the electrochemical oxidation window above 4.3-4.5 V vs. Li/Li+. (3) Interfacial Stabilization: Mitigates transition metal dissolution from high-nickel cathodes and prevents continuous decomposition of the solid electrolyte at aggressive positive potentials, ensuring prolonged capacity retention over extended cycling.

Part Number	CLCLIBSSELPSCF (C-LCLIB-SSE-LPSCF)
Chemical Formula	Li5.4PS4.4Cl1.4F2@0.2LiF
Appearance	Off-White Powder with Light Grey
Size Distribution	D50= ~10-20 um
XRD
Ionic Conductivity	~3.25 mS/cm under 400 MPa at 25 °C
Long Cycling Feature	>3000 times
Package Size	10 g, 20 g, and 50 g/bottle

Notes: Please try to store the Li5.4PS4.4Cl1.4F2@0.2LiF powders in glovebox due to its moisture sensitivity. 

References: 

1. C. Yu, et al. Facile Synthesis toward the Optimal Structure-Conductivity Characteristics of the Argyrodite Li6PS5Cl Solid-State Electrolyte, ACS Appl. Mater. Interfaces 2018, 10, 39, 33296–33306.
2. D. H. S. Tan, et al. Elucidating Reversible Electrochemical Redox of Li6PS5Cl Solid Electrolyte, ACS Energy Lett. 2019, 4, 10, 2418–2427.