Electrospinning synthesis of Na2MnPO4F/C nanofibers as a high voltage cathode material for Na-ion batteries. Issue 15 (15th October 2018)

• Record Type: Journal Article
• Authors: Hu, Yong; Wu, Ling; Liao, Guixiang; Yang, Yan; Ye, Fan; Chen, Jiabin; Zhu, Xing; Zhong, Shengkui
• Is Part Of: Ceramics international. Volume 44:Issue 15(2018)
• Page Start: 17577
• Page End: 17584
• Publication Date: 2018-10-15
• Subjects: Na-ion batteries -- Cathode materials -- Na2MnPO4F -- Electrospinning -- Nanofibers; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2018.06.236
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Three-dimensional carbon nanofibers embedded with Na2 MnPO4 F nanoparticles are fabricated via electrospinning method and investigated as cathode material for sodium ion batteries. The Na2 MnPO4 F nanoparticles with a size of about 10–30 nm are well-crystallized and the diameter of the carbon nanofibers are about 100 nm. Due to the ultrafine particle size of Na2 MnPO4 F together with high conductivity of the three-dimensional electron/ion hybrid network of carbon nanofibers, the material synthesized at 650 °C exhibit good electrochemical performance at room temperature. It is found that an obvious potential platform as high as 3.6 V during charge/discharge processes occurs and there is an initial specific capacity of 122.4 mAh g −1 at 0.05C rate, which is close to the theoretic capacity (one Na + extracted) of Na2 MnPO4 F. This work suggests a new design strategy for high-performance Na2 MnPO4 F cathodes of sodium-ion batteries.