Detailed redox mechanism and self-discharge diagnostic of 4.9 V LiMn<sub>1.5</sub>Ni<sub>0.5</sub>O<sub>4</sub> spinel cathode revealed by Raman spectroscopy
Ankush Bhatia, Yosra Dridi Zrelli, Jean‐Pierre Pereira‐Ramos, Rita Baddour‐Hadjean
Abstract
Raman spectroscopy captures the changes in Ni redox states during lithiation of high voltage LMNO cathode. A fast, easy and reliable measure of the self-discharge phenomenon is accessible thanks to appropriate Raman spectra analysis.
Topics & Concepts
Raman spectroscopyCathodeRedoxSpinelMaterials scienceAnalytical Chemistry (journal)SpectroscopyChemistryPhysical chemistryOpticsMetallurgyPhysicsQuantum mechanicsChromatographyAdvancements in Battery MaterialsAdvanced Battery Technologies ResearchSupercapacitor Materials and Fabrication