钠离子电池(SIB)是继锂离子电池(LIB)后,最具有应用前景的电池技术之一,而磷酸焦磷酸铁钠是一种具备较高可逆比容量、长循环寿命的复合型钠离子电池聚阴离子型正极材料.系统地总结了磷酸焦磷酸铁钠的制备方法与电化学性能,揭示了磷酸焦磷酸铁钠材料具备的基本结构特性与储钠电极反应机制.同时,分析了已有的磷酸焦磷酸铁钠正极材料的改性方法和电化学性能提升机制,展望了该领域的发展趋势,指出深入的理论研究和工艺改进是重要的研究方向.
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.
张鼎;周启坤;刘镇铭;胡新颖;叶子贤;药志超;李卫
武汉工程大学化工与制药学院,湖北武汉 430205||浙江瓦司特钠科技有限公司,浙江嘉兴 314000武汉工程大学化工与制药学院,湖北武汉 430205内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特 010000
动力与电气工程
钠离子电池;聚阴离子正极材料;磷酸焦磷酸铁钠;制备方法;电化学性能
sodium ion battery;polyanion cathode material;Na4Fe3(PO4)2P2O7;preparation method;electrochemical performance
《南京工业大学学报（自然科学版）》 2024 (003)
235-250 / 16
国家自然科学基金(21978793;21865021)
10.3969/j.issn.1671-7627.2024.03.001
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