P3-Type K<sub>0.45</sub>Co<sub>1/12</sub>Mg<sub>1/12</sub>Mn<sub>5/6</sub>O<sub>2</sub> as a superior cathode material for potassium-ion batteries with high structural reversibility ensured by Co–Mg Co-substitution
Jinji Liang, Chenhan Lin, Xiangcong Meng, Min Liang, Jie Lai, Xuhong Zheng, Quanzhuang Huang, Liying Liu, Zhicong Shi
Abstract
P3-K 0.45 Co 1/12 Mg 1/12 Mn 5/6 O 2 exhibits highly reversible single-phase structural evolution during the K + deintercalation/intercalation. On the contrast, the pristine K 0.45 MnO 2 electrode experiences incompletely reversible structural variation from a P′3 to P3 phase.
Topics & Concepts
CathodeIntercalation (chemistry)ManganeseMaterials scienceCrystallographyPhase (matter)Analytical Chemistry (journal)ChemistryInorganic chemistryPhysical chemistryMetallurgyChromatographyOrganic chemistryAdvancements in Battery MaterialsFerroelectric and Piezoelectric MaterialsElectrical and Thermal Properties of Materials