Unraveling and suppressing the voltage decay of high-capacity cathode materials for sodium-ion batteries
Luoran Sun, Zhonghan Wu, Machuan Hou, Youxuan Ni, Haoxiang Sun, Peixin Jiao, Haixia Li, Wei Zhang, Liang Zhang, Kai Zhang, Fangyi Cheng, Jun Chen
Abstract
The steric heterogeneity of Mn redox derived from the oxygen loss is the trigger of voltage decay in high-capacity oxygen-redox sodium-based layered oxides. Moreover, an electron localization strategy is developed to eliminate the voltage decay.
Topics & Concepts
RedoxCathodeIonSodiumVoltageOxygenSteric effectsElectronMaterials scienceChemistryInorganic chemistryPhotochemistryElectrical engineeringPhysicsNuclear physicsPhysical chemistryOrganic chemistryEngineeringAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesSupercapacitor Materials and Fabrication