Synthesis and Electrochemical Properties of Sodium Vanadium Phosphate Cathode Materials for Zinc Ion Batteries
In recent years,aqueous zinc ion batteries have attracted much attention in the field of energy storage.Compared with organic batteries,aqueous batteries use environmentally friendly aqueous electrolyte,which has higher safety and great potential for development.In aqueous zinc ion batteries,cathode materials,especially sodium vanadium phosphate,have become competitive cathode materials for zinc ion batteries due to its simple synthesis method,fast ionic conduction and other advantages.In this paper,sodium vanadium phosphate materials were prepared,and sodium vanadium phosphate cathode materials were loaded into button batteries,and a series of material performance characterization and electrochemical performance tests were conducted to investigate the zinc storage performance and zinc storage mechanism of sodium vanadium phosphate.The results show that the sodium vanadium phosphate exhibits better performance characteristics,and its discharge process is a co-embedded process of Na+and Zn2+,which provides theoretical support for the optimization of the cathode materials for zinc ion batteries.
aqueous zinc ion batteriescathode materialssodium vanadium phosphatesol-gel methodelectrochemical properties
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