Na3Fe5O9

Na3Fe5O9 is an iron oxide ceramic compound containing sodium, belonging to the mixed-valence iron oxide family used primarily in electrochemical and magnetic applications. This material is of significant research interest for energy storage systems, particularly as a cathode material in sodium-ion batteries and as a component in ferrimagnetic ceramics, where its layered crystal structure and electrochemical activity offer advantages over conventional lithium-based systems. The sodium-iron-oxygen chemistry makes it particularly attractive for large-scale energy storage where cost and material abundance are critical factors compared to lithium-ion alternatives.