材料科学
纳米纤维
阳极
静电纺丝
复合材料
碳纳米纤维
氮化硼
碳化
电极
锂(药物)
化学工程
电化学
复合数
聚丙烯腈
法拉第效率
纳米复合材料
阴极
电解质
纳米颗粒
制作
碳纤维
碳纳米管
扫描电子显微镜
聚合物
化学
物理化学
内分泌学
医学
作者
Minghua Chen,Shouzhi Zhang,Jiawei Zhang,Qingguo Chen
标识
DOI:10.1166/jnn.2019.16446
摘要
Flexible electrode material has bendable feature and can be directly applied as electrode without any additives and binders. In this study, flexible carbon nanofiber/boron nitride composites were prepared via a facile electrospinning and subsequent carbonization treatment for lithium ion battery. BN nanoparticles were uniformly dispersed in the nanofibers after an annealing temperature of 800 °C, and the diameters of nanofibers were at 100~450 nm range. The fabricated composites, used as binder-free anode materials, exhibited an impressive reversible capacity of 205 mAh·g-1 after 300 cycles at a current density of 100 mA·g-1. The electrodes still exhibited a specific capacity of 140 mAh·g-1 even at a higher current density of 1000 mA·g-1. The excellent electrochemical performance of the nanofiber/boron nitride composites can be attributed to the unique structure of nanofibers and superior electrical conductivity.
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