纳米纤维
静电纺丝
阴极
溶解
化学工程
材料科学
锂(药物)
涂层
自行车
碳纳米纤维
电极
碳纤维
硫黄
纳米技术
化学
复合材料
聚合物
冶金
碳纳米管
考古
工程类
历史
物理化学
复合数
医学
内分泌学
作者
Anupriya K. Haridas,Ji‐Eun Lim,Du-Hyun Lim,Jeha Kim,Kwon Koo Cho,Aleksandar Matic,Jae Kwang Kim,Jou‐Hyeon Ahn
出处
期刊:Chemsuschem
[Wiley]
日期:2018-09-14
卷期号:11 (20): 3625-3630
被引量:13
标识
DOI:10.1002/cssc.201801587
摘要
Abstract FeS 2 /C core–shell nanofiber webs were synthesized for the first time by a unique synthesis strategy that couples electrospinning and carbon coating of the nanofibers with sucrose. The design of the one‐dimensional core–shell morphology was found to be greatly beneficial for accommodating the volume changes encountered during cycling, to induce shorter lithium ion diffusion pathways in the electrode, and to prevent sulfur dissolution during cycling. A high discharge capacity of 545 mAh g −1 was retained after 500 cycles at 1 C, exhibiting excellent stable cycling performance with 98.8 % capacity retention at the last cycle. High specific capacities of 854 mAh g −1 , 518 mAh g −1 , and 208 mAh g −1 were obtained at 0.1 C, 1 C, and 10 C rates, respectively, demonstrating the exceptional rate capability of this nanofiber web cathode.
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