Room temperature lithium superionic conductivity in high entropy oxides
David Bérardan, Sylvain Franger, Abhishek Meena, Nita Dragoe
Abstract
Impedance spectroscopy measurements evidence superionic Li <sup>+</sup> mobility (>10 <sup>−3</sup> S cm <sup>−1</sup> ) at room temperature and fast ionic mobility for Na <sup>+</sup> (5 × 10 <sup>−6</sup> S cm <sup>−1</sup> ) in high entropy oxides, a new family of oxide-based materials with the general formula (MgCoNiCuZn) <sub>1−x−y</sub> Ga <sub>y</sub> A <sub>x</sub> O (with A = Li, Na, K).
Topics & Concepts
Ionic conductivityElectrical resistivity and conductivityAnalytical Chemistry (journal)ConductivityLithium (medication)Fast ion conductorMaterials scienceChemistryCrystallographyInorganic chemistryPhysical chemistryPhysicsElectrolyteMedicineElectrodeEndocrinologyChromatographyQuantum mechanicsThermal Expansion and Ionic ConductivityHigh Entropy Alloys StudiesInorganic Chemistry and Materials