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MM: Fachverband Metall- und Materialphysik
MM 19: Poster Session
MM 19.16: Poster
Dienstag, 10. März 2026, 18:00–20:00, P5
Structure and transport properties of Li-Zr-Cl-O oxychloride solid electrolytes — •Ziyan Zhang1,2, Shuai Chen3, Peter Müller-Buschbaum1, and Anatoliy Senyshyn2 — 1TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany — 2MLZ, TUM, Garching, Germany — 3TUM School of Natural Sciences, Chair for Physics of Energy Conversion and Storage, Garching, Germany
All-solid-state batteries using halide-based electrolytes have attracted attention due to their promising combination of room-temperature ionic transport, formability, and interfacial compatibility. Within this class, oxychloride compositions offer an additional degree of freedom via anion chemistry while retaining the beneficial processing of chlorides. The current study systematically characterizes mechanochemically prepared Li-Zr-Cl-O oxychlorides. A targeted Li2+yZrCl6-yOy series was established under standardized processing conditions. Laboratory powder X-ray diffraction was used to quantify the structural response to changes in oxygen content and processing conditions, using Rietveld analysis to determine lattice parameters. Electrochemical impedance spectroscopy yielded ionic conductivities and activation energies at ambient temperature. The resulting dataset provides a detailed composition-processing-structure- transport map for Li-Zr-Cl-O and delineates a practical recipe window for maximizing room-temperature conductivity under a purely mechanochemical synthesis route, thereby laying a robust laboratory baseline for subsequent interfacial and operando investigations.
Keywords: Halide solid-electrolyte; Mechanochemical synthesis; Parameter optimization; Conductivity enhancement; All-Solid-State Battery