Toward Understanding of the Li-Ion Migration Pathways in the Lithium Aluminum Sulfides Li<sub>3</sub>AlS<sub>3</sub> and Li<sub>4.3</sub>AlS<sub>3.3</sub>Cl<sub>0.7</sub> via <sup>6,7</sup>Li Solid-State Nuclear Magnetic Resonance Spectroscopy
Benjamin B. Duff, Stuart J. Elliott, Jacinthe Gamon, Luke M. Daniels, Matthew J. Rosseinsky, Frédéric Blanc
Abstract
. Detailed analysis of spin-lattice relaxation data allows extraction of Li-ion jump rates that are significantly increased for the doped material and identify Li mobility pathways in both materials to be three-dimensional. The identification of factors limiting long-range translational Li diffusion and understanding the effects of structural modification (such as anion substitution) on Li-ion mobility provide a framework for the further development of more highly conductive Li solid electrolytes.
Topics & Concepts
IonChemistryLithium (medication)Ionic bondingFast ion conductorIonic conductivityDiffusionElectrolyteChemical physicsAnalytical Chemistry (journal)Physical chemistryThermodynamicsElectrodeChromatographyMedicineOrganic chemistryEndocrinologyPhysicsAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesAdvanced NMR Techniques and Applications