Superior Electrochemical Performance of Sulfur/Graphene Nanocomposite Material for High‐Capacity Lithium–Sulfur Batteries

2012 ◽  
Vol 7 (7) ◽  
pp. 1637-1643 ◽  
Author(s):  
Bei Wang ◽  
Kefei Li ◽  
Dawei Su ◽  
Hyojun Ahn ◽  
Guoxiu Wang
Keyword(s):  
Electrochemical Performance ◽  
High Capacity ◽  
Nanocomposite Material ◽  
Lithium Sulfur Batteries ◽  
Graphene Nanocomposite ◽  
Lithium Sulfur

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.

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.

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.

High capacity polycarbazole-sulfur cathode for use in lithium-sulfur batteries

2021 ◽  
pp. 138898
Author(s):  
Mohammad Ramezanitaghartapeh ◽  
Anthony F. Hollenkamp ◽  
Mustafa Musameh ◽  
Peter J. Mahon
Keyword(s):  
High Capacity ◽  
Sulfur Cathode ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur
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