An excellent adsorptive TiO2@yV2O5 (y=0.025-0.045) bifunctional composite endowing high sulfur loading as cathode material for lithium-sulfur batteries

2021 ◽  
pp. 162650
Author(s):  
Tan Wang ◽  
Xiaoshi Lang ◽  
Lan Li ◽  
Chuangang Yao ◽  
JiaQi Liu ◽  
...  
RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 39918-39925 ◽  
Author(s):  
Songtao Zhang ◽  
Mingbo Zheng ◽  
Zixia Lin ◽  
Rui Zang ◽  
Qingli Huang ◽  
...  

A mango stone-derived activated carbon/sulfur composite cathode with a high sulfur loading of 71 wt% for long cycle-life Li–S batteries.


2014 ◽  
Vol 2 (14) ◽  
pp. 5018-5023 ◽  
Author(s):  
Chao Wang ◽  
Kai Su ◽  
Wang Wan ◽  
Hua Guo ◽  
Henghui Zhou ◽  
...  

A sulfur composite cathode material based on 3D N-doped graphene has a high sulfur content of 87.6 wt% and shows an excellent rate capability and cyclability.


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

Membranes ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 483
Author(s):  
Jing Wang ◽  
Riwei Xu ◽  
Chengzhong Wang ◽  
Jinping Xiong

We report on the preparation and characterization of a novel lamellar polypyrrole using an attapulgite–sulfur composite as a hard template. Pretreated attapulgite was utilized as the carrier of elemental sulfur and the attapulgite–sulfur–polypyrrole (AT @400 °C–S–PPy) composite with 50 wt.% sulfur was obtained. The structure and morphology of the composite were characterized with infrared spectroscopy (IR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). An AT @400 °C–S–PPy composite was further utilized as the cathode material for lithium–sulfur batteries. The first discharge specific capacity of this kind of battery reached 1175 mAh/g at a 0.1 C current rate and remained at 518 mAh/g after 100 cycles with capacity retention close to 44%. In the rate test, compared with the polypyrrole–sulfur (PPy–S) cathode material, the AT @400 °C–S–PPy cathode material showed lower capacity at a high current density, but it showed higher capacity when the current came back to a low current density, which was attributed to the “recycling” of pores and channels of attapulgite. Therefore, the lamellar composite with special pore structure has great value in improving the performance of lithium–sulfur batteries.


2013 ◽  
Vol 67 (10) ◽  
pp. 719-723 ◽  
Author(s):  
Oliver Gronwald ◽  
Arnd Garsuch ◽  
Alexander Panchenko

2017 ◽  
Vol 5 (42) ◽  
pp. 22120-22124 ◽  
Author(s):  
Yonggang Liu ◽  
Weikun Wang ◽  
Anbang Wang ◽  
Zhaoqing Jin ◽  
Hailei Zhao ◽  
...  

A NiS2-modified sulfurized polyacrylonitrile composite is prepared by simply co-heating a mixture of sulfur, NiCO3, and polyacrylonitrile.


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