Area of research
Environmental Engineering · Electrochemistry
Research interest
Research topics from publications: Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries; Advanced Multifunctional Sodium‐Ion Battery with High Current Conversion, Long Cycle Life, and All‐Climate Temperature Range by Dual‐Multivalent Cation Doping Strategy. Representative work: Abstract The polyanionic fluorophosphate Na 3 V 2 (PO 4 ) 2 O 2 F is regarded as one of the most prospective cathode materials for high‐energy‐density sodium‐ion batteries (SIBs), owing to its high operating voltage and ideal theoretical specific capacity. Nevertheless, its low kinetics significantly restrict its electrochemical performance and practical applications. In this paper, a novel bimetallic‐doped cathode material, Na 3 V 1.90 Ti 0.05 Cr 0.05 (PO 4 ) 2 O 2 F (NVTC), based on V‐site multivalent cations, is developed. When used as a cathode material in sodium‐ion half batteries, it can be stably cycled for 3000 cycles with a capacity maintenance ratio of 96.88% at an ultra‐high curre