In-Situ X-Ray Powder Diffraction Study of the Sodium Ion Storage Mechanism in Prussian Blue Analogue Cathode Materials (2026)
Abstract
Prussian Blue Analogues (PBAs) have garnered significant research attention as cathode materials for sodium-ion batteries due to their rigid structure, inherent large interstitial voids, and facile synthetic processes. However, the sodium content within the structure and the long-term cycling stability are intricately related to the crystal structure and phase transitions during charge and discharge processes. This proposal aims to elucidate the structural evolution associated with varying sodium content in PBAs cathodes through the application of in-situ X-ray powder diffraction techniques. The outcomes of this study are anticipated to offer valuable insights and guidelines for the development of highperformance sodium-ion batteries.
