NOUFERROUS METALLURGICAL EQUIPMENT

Na₃(VOPO₄)₂F (NVOPF) has emerged as a promising cathode material for sodium-ion batteries (SIBs) due to its high specific capacity of up to 130mAh/g, an operating voltage of approximately 3.9V, and excellent structural stability (less than 2% volume change). Extensive research has been conducted to enhance the sodium-storage performance of NVOPF, including hybridization with various conductive carbon materials, design of micro-morphology, and anions-and cations-doping modifications. This paper focuses on the synthesis methods and the intrinsic principles of NVOPF, aiming to deepen the understanding of the research process surrounding this material. Additionally, we provide an in-depth explanation of the unique microstructure of NVOPF and its intrinsic relationship with sodium-storage performance. The paper not only details the current research status of NVOPF cathode materials, including milestones achieved and existing limitations, but also anticipates future development directions for this material. We hope that high-performance NVOPF cathode materials can be successfully applied in practical scenarios, leading to new breakthroughs and advancements in the field of energy storage.