All Inorganic Frameworks of Tin Dioxide Shell as Cathode Material for Lithium Sulfur Batteries with Improved Cycle Performance

2015 ◽  
Vol 119 (52) ◽  
pp. 28721-28727 ◽  
Author(s):  
Lu Ping Zhang ◽  
Ye Feng Wang ◽  
Si Qiong Gou ◽  
Jing Hui Zeng
2021 ◽  
Vol 105 (1) ◽  
pp. 191-198
Author(s):  
Dominika Capkova ◽  
Tomas Kazda ◽  
Ondrej Petruš ◽  
Ján Macko ◽  
Kamil Jasso ◽  
...  

Various materials have been reported as an efficient host for sulfur to suppress large volume variation and polysulfide shuttle in lithium-sulfur batteries. Carbon materials are widely used as a matrix for sulfur to improve cycle performance and confine sulfur. Addition of transition metal sulfides into cathode material can improve cycle stability due to high efficiency of chemisorption and suppressing the polysulfide diffusion. In this work, various additions of pyrite to carbon and sulfur in the cathode material were investigated. The results show that the amount of pyrite has an affect on capacity and cycle stability of the electrode. Consequently, the lithium-sulfur batteries with the composite cathodes, containing 10 % of pyrite, exhibits stable discharge capacity of 788 mAh g-1 after 60 cycles at 0.2 C. Pyrite is a promising electrocatalyst in advanced lithium-sulfur batteries in the merits of low-cost, eco-friendliness and high activity towards polysulfides conversion reaction.


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.


2019 ◽  
Vol 472 ◽  
pp. 135-142 ◽  
Author(s):  
Ying Liu ◽  
Anupriya K. Haridas ◽  
Younki Lee ◽  
Kwon-Koo Cho ◽  
Jou-Hyeon Ahn

ChemSusChem ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 824-829 ◽  
Author(s):  
Yoongon Kim ◽  
Hyunsu Han ◽  
Yuseong Noh ◽  
Jaejin Bae ◽  
Moon-Ho Ham ◽  
...  

2020 ◽  
Vol 46 (15) ◽  
pp. 24155-24161 ◽  
Author(s):  
Jia Yao ◽  
Mi Zhang ◽  
Guodong Han ◽  
Xin Wang ◽  
Zhentao Wang ◽  
...  

2020 ◽  
Vol 48 ◽  
pp. 390-397 ◽  
Author(s):  
You Li ◽  
Xiao Zhang ◽  
Guihua Liu ◽  
Ashton Gerhardt ◽  
Katelyn Evans ◽  
...  

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