Structural Mechanism of Enhanced Zn2+/Li+ Storage in Bi-Doped Na3V2(PO4)3 Revealed by Synchrotron Powder Diffraction (2025)
Abstract
NASICON-type phosphate materials such as Na3V2(PO4)3 (NVP) have shown great promise as cathodes in aqueous zinc-ion batteries (AZIBs) due to their high structural stability and multi-electron redox capabilities. This proposal aims to investigate the effect of bismuth (Bi) doping on the Li?/Zn²? co-intercalation behavior in NVP-based cathodes using synchrotron powder diffraction. The study will elucidate the structural evolution and ion storage mechanisms enabled by Bi doping and lithium-rich electrolytes, offering insights to enhance the performance and reversibility of AZIBs.
