Reactivity and Potential Profile across the Electrochemical LiCoO<sub>2</sub>–Li<sub>3</sub>PS<sub>4</sub> Interface Probed by <i>Operando</i> X-ray Photoelectron Spectroscopy
Xiaohan Wu, Marta Mirolo, C. A. F. Vaz, Petr Novák, Mario El Kazzi
Abstract
species at 3.3 V observed in both S 2p and Co 2p core levels. Concurrently, a local surface overpotential of 0.9 V caused by a negative localized charge layer is detected at the LPS-LCO interface. Furthermore, in agreement with previous theoretical results, the presence of a sharp potential drop at the interface between active materials and solid electrolyte is demonstrated in all-solid-state batteries.
Topics & Concepts
X-ray photoelectron spectroscopyOverpotentialMaterials scienceElectrolyteElectrochemistryReactivity (psychology)Photoemission electron microscopyLithium (medication)Analytical Chemistry (journal)Ionic bondingElectrodeIonChemical engineeringPhysical chemistryChemistryElectron microscopeOpticsEndocrinologyAlternative medicinePhysicsOrganic chemistryEngineeringChromatographyMedicinePathologyAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesAdvanced Battery Technologies Research