Influence of Anion Substitution on the Lithium Diffusivity in Hexagonal LixTiS2-ySey
نویسندگان
چکیده
1 Leibniz Universität Hannover, Institut für Physikalische Chemie und Elektrochemie, Callinstraße 3a, 30167 Hannover, Germany 2 Christian-Albrechts-Universität zu Kiel, Institut für Anorganische Chemie, Olshausenstr. 40 (Otto-Hahn-Platz 6/7), 24098 Kiel, Germany 3 Universität Bonn, Lehrstuhl für Theoretische Chemie, Wegelerstr. 12, 53115 Bonn, Germany † present address: Forschungszentrum Karlsruhe, Institut für Nanotechnologie, Hermann-vonHelmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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Comparison of 3D and 2D Li Diffusion in Cubic and Hexagonal LixTiS2 – A Study by Solid State Li NMR Methods
Li diffusion in spinel-type structured cubic and hexagonal LixTiS2 with x = 0.6 and 0.7, respectively, was investigated by solid state NMR spectroscopy. In layered hexagonal LixTiS2, Li diffusion is known to be confined to the van-der-Waals gap between the TiS2 planes, i. e., it is two-dimensional (2D). In cubic LixTiS2, however, Li diffusion takes place in the three-dimensional (3D) interstiti...
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