A highly conductive carbon–sulfur film with interconnected mesopores as an advanced cathode for lithium–sulfur batteries

2017 ◽  
Vol 53 (65) ◽  
pp. 9097-9100 ◽  
Author(s):  
Mingkai Liu ◽  
Yuqing Liu ◽  
Yan Yan ◽  
Fengsheng Wang ◽  
Jiahui Liu ◽  
...  

A highly conductive graphene sheet–mesoporous carbon sphere–sulfur (GMC–S) film effectively restricts the “shuttling” of polysulfides and achieves an ultra-long term cycling stability.

2017 ◽  
Vol 5 (27) ◽  
pp. 13971-13975 ◽  
Author(s):  
Sui Gu ◽  
Xiao Huang ◽  
Qing Wang ◽  
Jun Jin ◽  
Qingsong Wang ◽  
...  

A hybrid electrolyte prepared using oxide ceramics and fluorinated electrolytes enhances the capacity retention and long-term cycling stability of lithium–sulfur batteries.


2018 ◽  
Vol 54 (40) ◽  
pp. 5090-5093 ◽  
Author(s):  
Mingkai Liu ◽  
Qinghua Meng ◽  
Zhiyuan Yang ◽  
Xinsheng Zhao ◽  
Tianxi Liu

An integrated carbon–sulfur membrane (CSG/PC) with dual “shuttle-inhibiting” layers of graphene “nets” and a porous carbon (PC) skin can overcome the poor cycling performance of lithium–sulfur batteries.


2018 ◽  
Vol 54 (100) ◽  
pp. 14093-14096 ◽  
Author(s):  
Jingjing Ma ◽  
Guangri Xu ◽  
Yuanchao Li ◽  
Chuangye Ge ◽  
Xiaobo Li

A sulfur–polymer composite synthesized by one-step thermal sulfurization of PANI is proposed to show excellent long-term cycling stability in carbonate-based electrolytes.


2018 ◽  
Vol 6 (29) ◽  
pp. 14178-14187 ◽  
Author(s):  
Peng Wang ◽  
Zhian Zhang ◽  
Xiaolin Yan ◽  
Ming Xu ◽  
Yuxiang Chen ◽  
...  

Long-term cycling stability of 80S/Co-NPC-MCs electrode at 1 and 2C and the schematic of the trapping effect of sulfur and PSs in Co-NPC-MCs.


2021 ◽  
Vol 45 (5) ◽  
pp. 2361-2365
Author(s):  
Xinzuo Fang ◽  
Yu Jiang ◽  
Kailong Zhang ◽  
Guang Hu ◽  
Weiwei Hu

The F and N co-doped porous carbon derived from ZIF-8 is used as a membrane in Li–S batteries with enhanced capacity and cycling stability.


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.


2014 ◽  
Vol 58 ◽  
pp. 204-207 ◽  
Author(s):  
Xiaohui Zhao ◽  
Dul-Sun Kim ◽  
Hyo-Jun Ahn ◽  
Ki-Won Kim ◽  
Kwon-Koo Cho ◽  
...  

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