Enhanced oxygen redox reversibility and capacity retention of titanium-substituted Na<sub>4/7</sub>[□<sub>1/7</sub>Ti<sub>1/7</sub>Mn<sub>5/7</sub>]O<sub>2</sub> in sodium-ion batteries
Stephanie F. Linnell, Eun Jeong Kim, Yong‐Seok Choi, Moritz Hirsbrunner, Saki Imada, Atin Pramanik, Aida Fuente Cuesta, David Miller, Edoardo Fusco, Bela E. Bode, John T. S. Irvine, Laurent C. Duda, David O. Scanlon, A. Robert Armstrong
Abstract
The reversibility of oxygen anion redox is remarkably improved for partially Ti-substituted Na 4/7 [□ 1/7 Ti 1/7 Mn 5/7 ] and operates at a higher potential ( vs. Na/Na + ) compared with the parent material Na 4/7 [□ 1/7 Mn 6/7 ].
Topics & Concepts
RedoxTitaniumOxygenIonChemistryInorganic chemistryManganeseMaterials scienceCrystallographyAnalytical Chemistry (journal)MetallurgyOrganic chemistryChromatographyAdvancements in Battery MaterialsAdvanced Battery Materials and TechnologiesFerroelectric and Piezoelectric Materials