Tetrahedral Tilting and Lithium‐Ion Transport in Halide Argyrodites Prepared by Rapid, Microwave‐Assisted Synthesis

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 12, 2025

Abstract This study demonstrates a rapid, dry, microwave‐assisted (MW) synthesis method that enables preparation of halide argyrodites ( , ) in less than 20 min. The structures and ion transport properties the resulting materials are compared with those synthesized by conventional solid‐state methods. leads to increased site disorder elevated Arrhenius prefactors (), which lead an order magnitude improvement 30 ionic conductivity MW‐. X‐ray pair distribution function analysis (XPDF) reveals significant rotational units, is impacted method, choice halide, presence / disorder. These displacements strongly correlated transport, specifically entropy migration (). Overall, this rapid route for preparing high‐quality argyrodite electrolytes min, further unravels atomistic insights into interplay structural disorder, dynamics, mechanisms.

Language: Английский

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Breaking the Upper Limit of Substitution Concentration in Li Argyrodite Solid Electrolytes Using a Single‐Solvent‐Mediated Approach

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Abstract Although raising the substitution concentration of aliovalent cations in Li argyrodite solid electrolytes could boost solid‐state battery performance, surpassing known limit has not been attempted. In this study, upper a 6+x P 1−x Si x S 5 Br electrolyte is increased using single‐solvent‐mediated approach. The attained through method ≈40%, whereas that achieved ball milling ≈30%. This result validated by monitoring variations interplanar distance, Raman shift, and ionic conductivity with respect to level. 6.4 0.6 0.4 as high ≈3.1 mS cm −1 , exceeding accomplished milling. enhanced ascribed reduced particle size, which leads an surface‐area‐to‐volume ratio particles. interpretation supported theoretical formalism developed based on substituent accumulation within space‐charge layers, predicts how technical depends surface‐volume fraction. A Li// Br//Li symmetric cell demonstrates excellent plating stripping over extended cycling. full incorporating retains ≈67% (96 mAh g ) its initial capacity (143 after 50 cycles at 0.2 C, delivers 76 1 C.

Language: Английский

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Advances in sodium all-solid-state batteries: Insights into sulfide solid electrolytes and their applications

Journal of the Taiwan Institute of Chemical Engineers, Journal Year: 2025, Volume and Issue: unknown, P. 106110 - 106110

Published: April 1, 2025

Language: Английский

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Solvent-free and scalable mechanochemical synthesis of high-performance sulfide solid electrolytes

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 121, P. 116593 - 116593

Published: April 11, 2025

Language: Английский

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