多功能碳包覆 Na2MnPO4F 材料的制备及其储钠性能研究
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中图分类号：TQ325.12 文献标志码：A 文章编号：1673-3851（2025）11-0774-12
引文格式：，等，多功能碳包覆 Na2MnPO4F 材料的制备及其储钠性能研究[J]．浙江理工大学学报（自然科学），2025，53（6）：774-785.
Reference Format： LI Jiaming，WANG Dazhong，ZHANG Linghao，et al. A study on the preparation of a multifunctional carbon-coated Na2MnPO4F material and its sodium storage properties[J]. Journal of Zhejiang Sci-Tech University，2025，53 （6）：774-785.
A study on the preparation of a multifunctional carbon-coated Na2MnPO4F material and its sodium storage properties
LI Jiaming ，WANG Dazhong ，ZHANG Linghao，XIA Qibo，SUN Junjie ，YANG Yefeng （School of Materials Science & Engineering，Zhejiang Sci-Tech University，Hangzhou 31OOl8，China）
Abstract： To develop high-performance cathode materials for sodium ion batteries，it is urgent to solve the problems of poor electronic conductivity and low ion diffusion rate of Na2MnPO4F （NMPF） polyanionic compounds，a carbon-coated NMPF cathode material was prepared by two-step ball milling method.By optimizing the amount and distribution of carbon source，the uniform composite and coating of carbon and NMPF were realized. The effects of different carbon source additions and distribution methods on the electrochemical performance of NMPF cathode materials were analyzed. The results show that the carbon-coated composite cathode material （NMPF-4/1） prepared by two-step ball milling method with the ratio of carbon source to manganese source of 4：1 exhibits excellent performance. The initial discharge capacity is 121mAh/g at 0.05C ，the capacity retention rate is as high as 50% after 15O cycles，and the reversible capacity is 100mAh/g at 0.10C rate performance test. This study provides a new idea for the development of high-performance cathode materials for sodium ion batteries，and is expected to promote the wide application of sodium ion batteries in the field of energy storage.
Key words： sodium ion batteries； cathode materials； manganese-based polyanionic； ball millingmethod; carbon coating
0引言
锂离子电池（LIBs）凭借其绿色环保、高能量密度、高容量等优势，在电动汽车、便携电子设备、电动工具等众多领域得到了广泛的商业化应用，但锂资源紧缺及原材料价格攀升，限制了其在大规模储能领域的发展。（剩余16514字）
