Sulfur impregnation in polypyrrole-modified MnO2 nanotubes: efficient polysulfide adsorption for improved lithium–sulfur battery performance

Nanoscale ◽  
2019 ◽  
Vol 11 (20) ◽  
pp. 10097-10105 ◽  
Author(s):  
Pengcheng Du ◽  
Wenli Wei ◽  
Yuman Dong ◽  
Dong Liu ◽  
Qi Wang ◽  
...  

PPy-coated MnO2 nanotubes were fabricated as a highly efficient sulfur host. Hollow interior of the MnO2 nanotubes and the polypyrrole outer layer can effectively improve the specific capacity and maintain an extremely stable cycling performance.

2020 ◽  
Vol 364 ◽  
pp. 137117 ◽  
Author(s):  
Zhenxin Zhao ◽  
Rajesh Pathak ◽  
Xiaomin Wang ◽  
Zhewei Yang ◽  
Huijun Li ◽  
...  

2018 ◽  
Vol 6 (47) ◽  
pp. 24045-24049 ◽  
Author(s):  
Bin Guan ◽  
LiShuang Fan ◽  
Xian Wu ◽  
Pengxiang Wang ◽  
Yue Qiu ◽  
...  

The facile synthesis of (Co2B)@graphene as a novel sulfur host, which provides good specific capacity and cycling performance, endowed by the unique “synergistic effect” of Co and B.


2021 ◽  
Vol 21 (12) ◽  
pp. 6243-6247
Author(s):  
Arenst Andreas Arie ◽  
Shealyn Lenora ◽  
Hans Kristianto ◽  
Ratna Frida Susanti ◽  
Joong Kee Lee

Lithium sulfur battery has become one of the promising rechargeable battery systems to replace the conventional lithium ion battery. Commonly, it uses carbon–sulfur composites as cathode materials. Biomass based carbons has an important role in enhancing its electrochemical characteristics due to the high conductivity and porous structures. Here, potato peel wastes have been utilized to prepare porous carbon lithium sulfur battery through hydrothermal carbonization followed by the chemical activation method using KOH. After sulfur loading, as prepared carbon–sulfur composite shows stable coulombic efficiencies of above 98% and a reversible specific capacity of 804 mAh g−1 after 100 cycles at current density of 100 mA g−1. These excellent electrochemical properties can be attributed to the unique structure of PPWC showing mesoporous structure with large specific surface areas. These results show the potential application of potato peel waste based porous carbon as electrode’s materials for lithium sulfur battery.


2020 ◽  
Vol 49 (6) ◽  
pp. 677-680
Author(s):  
Jinfeng Xie ◽  
Mingyue Gao ◽  
Mengrong Wu ◽  
Xingmei Guo ◽  
Weiwei Xiong ◽  
...  

2019 ◽  
Vol 30 (5) ◽  
pp. 4626-4633 ◽  
Author(s):  
Ruiyuan Zhuang ◽  
Shanshan Yao ◽  
Xiangqian Shen ◽  
Tianbao Li ◽  
Shibiao Qin ◽  
...  

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