Opening Diffusion Pathways through Site Disorder: The Interplay of Local Structure and Ion Dynamics in the Solid Electrolyte Li<sub>6+<i>x</i></sub>P<sub>1–<i>x</i></sub>Ge<sub><i>x</i></sub>S<sub>5</sub>I as Probed by Neutron Diffraction and NMR
Katharina Hogrefe, Nicolò Minafra, Isabel Hanghofer, Ananya Banik, Wolfgang G. Zeier, Martin Wilkening
Abstract
ions have access to an interconnected network of pathways allowing for rapid exchange processes between the Li cages. By (i) relating the changes of the crystal structure and (ii) measuring the dynamic features as a function of length scale, we were able to rationalize the microscopic origins of fast, long-range ion transport in this class of electrolytes.
Topics & Concepts
ChemistryIonFast ion conductorIonic bondingElectrolyteIonic conductivityDiffusionNeutron diffractionConductivityChemical physicsCrystal structureLithium (medication)CrystallographyPhysical chemistryThermodynamicsElectrodeEndocrinologyOrganic chemistryPhysicsMedicineAdvanced Battery Materials and TechnologiesAdvancements in Battery MaterialsThermal Expansion and Ionic Conductivity