Facilitating reversible transition metal migration and expediting ion diffusivity <i>via</i> oxygen vacancies for high performance O3-type sodium layered oxide cathodes
Chenhan Lin, Xiangcong Meng, Min Liang, Wenya Li, Jinji Liang, Tengfei Liu, Xi Ke, Jun Liu, Zhicong Shi, Liying Liu
Abstract
The in situ introduced oxygen vacancies deliver dual functionality for realizing the high-voltage operation of NaCrO 2– x (charged up to 3.8 V) by facilitating reversible TM migration and improving the rate capability by expediting ion diffusivity.
Topics & Concepts
ExpeditingThermal diffusivityOxygenOxideMaterials scienceCathodeIonTransition metalSodiumChemical physicsChemistryPhysical chemistryCatalysisThermodynamicsMetallurgyBiochemistryEngineeringSystems engineeringPhysicsOrganic chemistryAdvancements in Battery MaterialsAdvanced battery technologies researchAdvanced Battery Materials and Technologies