Confine Sulfur in Polyaniline-Decorated Hollow Carbon Nanofiber Hybrid Nanostructure for Lithium–Sulfur Batteries

2014 ◽  
Vol 118 (25) ◽  
pp. 13369-13376 ◽  
Author(s):  
Zhian Zhang ◽  
Qiang Li ◽  
Yanqing Lai ◽  
Jie Li
2014 ◽  
Vol 21 (3) ◽  
pp. 1343-1349 ◽  
Author(s):  
Zhian Zhang ◽  
Qiang Li ◽  
Shaofeng Jiang ◽  
Kai Zhang ◽  
Yanqing Lai ◽  
...  

2014 ◽  
Vol 256 ◽  
pp. 137-144 ◽  
Author(s):  
Qiang Li ◽  
Zhian Zhang ◽  
Kai Zhang ◽  
Jing Fang ◽  
Yanqing Lai ◽  
...  

Author(s):  
Maru Dessie Walle ◽  
You-Nian Liu

AbstractThe lithium–sulfur (Li–S) batteries are promising because of the high energy density, low cost, and natural abundance of sulfur material. Li–S batteries have suffered from severe capacity fading and poor cyclability, resulting in low sulfur utilization. Herein, S-DHCS/CNTs are synthesized by integration of a double-hollow carbon sphere (DHCS) with carbon nanotubes (CNTs), and the addition of sulfur in DHCS by melt impregnations. The proposed S-DHCS/CNTs can effectively confine sulfur and physically suppress the diffusion of polysulfides within the double-hollow structures. CNTs act as a conductive agent. S-DHCS/CNTs maintain the volume variations and accommodate high sulfur content 73 wt%. The designed S-DHCS/CNTs electrode with high sulfur loading (3.3 mg cm−2) and high areal capacity (5.6 mAh mg cm−2) shows a high initial specific capacity of 1709 mAh g−1 and maintains a reversible capacity of 730 mAh g−1 after 48 cycles at 0.2 C with high coulombic efficiency (100%). This work offers a fascinating strategy to design carbon-based material for high-performance lithium–sulfur batteries.


2017 ◽  
Vol 209 ◽  
pp. 505-508 ◽  
Author(s):  
Xiaoyan Li ◽  
Nianqing Fu ◽  
Jizhao Zou ◽  
Xierong Zeng ◽  
Yuming Chen ◽  
...  

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