Structural change induced by electrochemical sodium extraction from layered O′3-NaMnO<sub>2</sub>
Kei Kubota, Masahiro Miyazaki, Eun Jeong Kim, Hiroaki Yoshida, Prabeer Barpanda, Shinichi Komaba
Abstract
Synergizing ex situ synchrotron and operando XRD analysis, the structural change of O′3-NaMnO 2 is found to proceed via 6 distinct two-phase reactions involving 7 different O′3 phases during charging up to the optimum cut-off voltage of 3.476 V.
Topics & Concepts
ElectrochemistrySynchrotronMaterials scienceExtraction (chemistry)Phase changeIn situSodiumAnalytical Chemistry (journal)Phase (matter)CrystallographyChemistryElectrodePhysical chemistryThermodynamicsOpticsChromatographyPhysicsMetallurgyOrganic chemistryAdvancements in Battery MaterialsMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides