Mitigation of Jahn–Teller distortion and Na<sup>+</sup>/vacancy ordering in a distorted manganese oxide cathode material by Li substitution
Yanchen Liu, Chenchen Wang, Shuo Zhao, Lin Zhang, Kai Zhang, Fujun Li, Jun Chen
Abstract
Li-Substitution in P′2-Na 0.67 MnO 2 mitigates the anisotropic change of Mn–O bonds and Na/vacancy ordering, and hence significantly promotes its cycling stability and rate capability as a cathode material for sodium-ion batteries.
Topics & Concepts
Jahn–Teller effectManganeseMaterials scienceOctahedronVacancy defectCathodeCrystal structureStructural stabilityIonOxideBond lengthCrystallographyChemistryMetallurgyPhysical chemistryStructural engineeringEngineeringOrganic chemistryAdvancements in Battery MaterialsMultiferroics and related materialsSemiconductor materials and devices