Research progress on cathode material Na4Fe3(PO4)2P2O7 for sodium-ion batteries
Sodium-ion batteries(SIBs)are emerging as one of the most promising battery technologies following lithium-ion batteries(LIBs).Na4Fe3(PO4)2P2O7 is a composite polyanion cathode material for SIBs,characterized by its high reversible specific capacity and long cyclic life.This work systematically summarized the preparation techniques and electrochemical behavior of Na4Fe3(PO4)2P2O7,revealing its fundamental structural characteristics and the sodium storage electrode reaction mechanism.At the same time,the existing modification strategy and the mechanism for improving the electrochemical performance of Na4Fe3(PO4)2P2O7 cathode materials were also analyzed.This paper highlighted research trends in this field,emphasizing the importance of in-depth theoretical research and process improvements for future studies.
sodium ion batterypolyanion cathode materialNa4Fe3(PO4)2P2O7preparation methodelectrochemical performance
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