Regensburg 2025 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 32: Poster Session II

CPP 32.27: Poster

Donnerstag, 20. März 2025, 09:30–12:00, P3

Structural investigation of lithium deficient metal chlorides solid electrolytes — •Francesco Falsina — TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany

The strong demand for new and emerging sustainable energy solutions to address climate change and the requirements for increased high energy and power density have positioned solid-state batteries as a key research area. Lithium metal chlorides (LiMCl) are considered as promising candidates for next-generation batteries due to their high ionic conductivity, thermodynamic stability, and favourable mechanical properties. In this study, we investigated Li(3-3x) M(1+x)Cl6 compounds with M = Dy, Ho, Tb, and Tm using X-ray diffraction (XRD), confirming that all samples crystallize in the space group P3m1, though exhibiting partial crystallinity and high disorder without post-synthesis annealing. The effect of lithium deficiency was explored on the ionic conductivity employing Electrochemical Impedance Spectroscopy (EIS), offering further insights into their potential for solid-state battery applications.

Keywords: Solid state electrolyte; Lithium Metal Halides; Lithium Metal Chlorides