Scalable synthesis of Na<sub>2</sub>MVF<sub>7</sub> (M = Mn, Fe, and Co) as high-performance cathode materials for sodium-ion batteries
Jiaying Liao, Jingchen Han, Jianzhi Xu, Yichen Du, Yingying Sun, Liping Duan, Xiaosi Zhou
Abstract
Three weberite-type sodium-rich fluorides Na 2 MVF 7 (M = Mn, Fe, and Co) have been successfully synthesized. The optimal Na 2 FeVF 7 cathode delivers a high reversible capacity of 146.5 mA h g −1 based on active Fe 2+ /Fe 3+ and V 3+ /V 4+ redox reactions.
Topics & Concepts
CathodeRedoxSodiumExtraction (chemistry)IonMaterials scienceChemical engineeringChemistryInorganic chemistryPhysical chemistryOrganic chemistryMetallurgyEngineeringAdvancements in Battery MaterialsInorganic Fluorides and Related CompoundsAdvanced Battery Materials and Technologies