Decoding Structural Disorder, Synthesis Methods, and Short- and Long-Range Lithium-Ion Transport in Lithium Argyrodites (Li_6-<i>x</i> PS_5-<i>x</i> Br_1+<i>x</i> ).

ABSTRACT: By varying the bromine content and cooling method, we are able to induce site disorder in the Li_6-x PS_5-x Br_1+x (x = 0, 0.3, 0.5) system via two routes, allowing us to disentangle the impact of site disorder and chemical composition on conductivity. Through solid-state nuclear magnetic resonance (NMR), we can explore the chemical environment as well as short-range lithium-ion dynamics and compare these to results obtained from neutron diffraction and electrochemical impedance spectroscopy (EIS). We find that the cooling method has a profound effect on the ⁷Li and ³¹P environment that cannot be explained through 4d site disorder alone. The configurational entropy (S _conf) is used as a

SUBMITTER: Al-Kutubi H 

PROVIDER: S-EPMC11823417 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature