Natural chalcopyrite as a sulfur source and its electrochemical performance for lithium–sulfur batteries

2019 ◽  
Vol 6 (5) ◽  
pp. 1217-1227 ◽  
Author(s):  
Jiahui Zhou ◽  
Sijie Li ◽  
Wei Sun ◽  
Xiaobo Ji ◽  
Yue Yang
Keyword(s):  
Electrochemical Performance ◽  
High Capacity ◽  
Cycling Performance ◽  
Sulfur Source ◽  
Lithium Sulfur Batteries ◽  
Natural Chalcopyrite ◽  
Lithium Sulfur

Natural chalcopyrite with high capacity and good cycling performance is used as a sulfur source for lithium–sulfur batteries.

Sulfur–carbon yolk–shell particle based 3D interconnected nanostructures as cathodes for rechargeable lithium–sulfur batteries

2015 ◽  
Vol 3 (5) ◽  
pp. 1853-1857 ◽  
Author(s):  
Ning Ding ◽  
Yanwei Lum ◽  
Shaofeng Chen ◽  
Sheau Wei Chien ◽  
T. S. Andy Hor ◽  
...  
Keyword(s):  
Volume Expansion ◽  
High Capacity ◽  
Cycling Performance ◽  
Mild Oxidation ◽  
Shell Particle ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

A novel 3D interconnected S@C yolk–shell nanostructure from mild oxidation of ZnS@C accommodates S volume expansion upon lithiation in Li–S batteries, giving high capacity with good cycling performance.

scholarly journals Construction of KB@ZIF-8/PP Composite Separator for Lithium–Sulfur Batteries with Enhanced Electrochemical Performance

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4210
Author(s):  
Bingyi Ma ◽  
Xin Zhang ◽  
Xiaoqian Deng ◽  
Sheng Huang ◽  
Min Xiao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Retention Rate ◽  
High Capacity ◽  
Base Interaction ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
New Strategy ◽  
Composite Separator ◽  
Enhanced Electrochemical Performance ◽  
Lithium Sulfur

Lithium–sulfur batteries (LSBs) have attracted wide attention, but the shuttle effect of polysulfide hinders their further practical application. Herein, we develop a new strategy to construct a Ketjen black@zeolite imidazole framework-8/polypropylene composite separator. Such a separator consists of Ketjen black (KB), zeolite imidazole framework-8 (ZIF-8) and polypropylene (PP) with a low coating load of 0.06 mg cm−2 and is denoted as KB@ZIF-8/PP. KB@ZIF-8/PP can absorb polysulfides because of the Lewis acid-base interaction between ZIF-8 and polysulfides. This interaction can reduce the dissolution of polysulfides and suppress the shuttle effect, thereby enhancing the electrochemical performance of the battery. When tested at a current density of 0.1 C, an LSB with a KB@ZIF-8/PP separator exhibits low polarization and achieves a high initial capacity of 1235.6 mAh/g and a high capacity retention rate of 59.27% after 100 cycles.

The effect of polymeric binders in the sulfur cathode on the cycling performance for lithium–sulfur batteries

2019 ◽  
Vol 55 (97) ◽  
pp. 14609-14612
Author(s):  
Ji-Yong Eom ◽  
Seong-In Kim ◽  
Vitalii Ri ◽  
Chunjoong Kim
Keyword(s):  
Electrochemical Performance ◽  
Cycling Performance ◽  
Sulfur Cathode ◽  
Lithium Sulfur Batteries ◽  
Polymeric Binders ◽  
Sulfur Cathodes ◽  
Lithium Sulfur

We study the structural and electrochemical performance of sulfur cathodes prepared with two different binders, PVdF and SBR/CMC. Enhanced battery performance is observed in the SBR/CMC-based electrode and its origin is scrutinized.

Separator modified by Ketjen black for enhanced electrochemical performance of lithium–sulfur batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 13680-13685 ◽  
Author(s):  
Di Zhao ◽  
Xinye Qian ◽  
Lina Jin ◽  
Xiaolong Yang ◽  
Shanwen Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Cathode Side ◽  
Electrochemical Performances ◽  
Lithium Sulfur Batteries ◽  
Enhanced Electrochemical Performance ◽  
Lithium Sulfur

A routine separator modified by a Ketjen black (KB) layer on the cathode side has been investigated to improve the electrochemical performances of Li–S batteries.

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