Layer-structured K<sub>0.5</sub>Mn<sub>0.8</sub>Cu<sub>0.1</sub>Mg<sub>0.1</sub>O<sub>2</sub> for high-performance potassium-ion batteries by alleviating the phase transformation
Hong Chen, Xuan‐Wen Gao, Qi Li, Run-Ze Niu, Shuaishuai Wang, Qinfen Gu, Jianjia Mu, Wen Luo
Abstract
The [Cu–Mg] co-substitution can expand the spacing in the potassium ion layer and enhance the diffusion kinetics of K + . It can impede the ordered/disordered transition of transition metals and alleviate the Jahn–Teller effect of Mn 3+ .
Topics & Concepts
PotassiumTransition metalDiffusionIonMaterials scienceKineticsJahn–Teller effectLayer (electronics)Analytical Chemistry (journal)Inorganic chemistryChemistryThermodynamicsMetallurgyNanotechnologyCatalysisPhysicsEnvironmental chemistryOrganic chemistryQuantum mechanicsBiochemistryAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesTransition Metal Oxide Nanomaterials