静电纺丝
材料科学
阳极
碳纳米纤维
锂(药物)
法拉第效率
碳纤维
纳米颗粒
涂层
电化学
纳米纤维
化学工程
锂离子电池
复合材料
纳米技术
电池(电)
碳纳米管
电极
复合数
化学
聚合物
内分泌学
工程类
物理化学
物理
功率(物理)
医学
量子力学
作者
Wei Wang,Yuanyuan Liang,Yifan Kang,Liangsen Liu,Zhiwei Xu,Tongwen Xu,Mei Wei,Hao Fu,Hanming Lv,Kunyue Teng,Xiangquan Jiao,Fengyan Li
标识
DOI:10.1016/j.matchemphys.2018.11.066
摘要
In this study, carbon-coated SnO2 nanoparticles were loaded on pure carbon nanofibers ((SnO2@C)/CNFs) by the synchronized electrospinning-electrospraying method and subsequent heat treatment. Compared with SnO2@CNFs composites fabricated by conventional electrospinning method, carbon-coated SnO2 nanoparticles were homogeneously dispersed while attached tightly on CNFs surface with the help of carbon coating. The (SnO2@C)/CNFs composites delivered an outstanding initial discharge capacity of 1425 mAh g−1 at 100 mA g-1 and an initial coulombic efficiency of 63.24%. A reversible capacity of ~500 mAh g-1 was also displayed after 50 cycles. Remarkably, the outstanding electrochemical performance of (SnO2@C)/CNFs composites was ascribed to the cooperative effect of external carbon-coated SnO2 nanoparticles and unmarred CNFs three-dimensional interconnection networks. Furthermore, this synchronized electrospinning-electrospraying method was simple, efficient and scalable, providing a potential strategy for lithium-ion battery anode material production.
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