NMR studies of cation transport in the crystalline ion conductors MCF 3SO 3 (M = Li, Na) and Li 7TaO 6

Abstract

In this contribution we present studies on the mechanism of ion transport in crystalline solid electrolytes employing a range of different solid state nuclear magnetic resonance (NMR) experiments. The first part is devoted to the elucidation of a possible correlation of cation transport and anion reorientation in the dynamically disordered rotor phases of alkali trifluoromethane sulfonates MCF 3SO 3 (M = Li, Na) employing 7Li, 13C, 17O and 23Na NMR line shape analysis, whereas the second part focuses on the tracking of cation diffusion pathways in the hexaoxometalate Li 7TaO 6 utilizing 6Li 1D and 2D exchange MAS NMR approaches.