Propelling Polysulfide Redox Conversion by d-band modulation for High Sulfur Loading and Low Temperature Lithium-Sulfur Batteries

2021 ◽  
Author(s):  
Pan Zeng ◽  
Cheng Liu ◽  
Chen Cheng ◽  
Cheng Yuan ◽  
Kehua Dai ◽  
...  
Keyword(s):  
Low Temperature ◽  
Electrochemical Performance ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Redox Conversion ◽  
Lithium Sulfur ◽  
High Sulfur Loading

The sluggish redox conversion of polysulfides, especially under high sulfur loading, low-temperature, and low electrolyte/sulfur (E/S) ratio conditions, aggravates the shuttle effect that severely deteriorates the electrochemical performance of Li-S...

Discarded cigarette filter-derived hierarchically porous carbon@graphene composites for lithium–sulfur batteries

2019 ◽  
Vol 7 (8) ◽  
pp. 3558-3562 ◽  
Author(s):  
Hongbin Xu ◽  
Yang Liu ◽  
Qianyun Bai ◽  
Renbing Wu
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
Mesoporous Carbon ◽  
Cigarette Filter ◽  
Hierarchically Porous ◽  
Excellent Electrochemical Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
High Sulfur Loading

Trash to treasure: discarded cigarette filters have been utilized to fabricate hierarchical macro–micro–mesoporous carbon@graphene composites, which enable high sulfur loading and confine the dissolution of lithium polysulfides, and thus exhibit an excellent electrochemical performance in Li–S batteries.

Hollow polyaniline sphere@sulfur composites for prolonged cycling stability of lithium–sulfur batteries

2014 ◽  
Vol 2 (27) ◽  
pp. 10350-10354 ◽  
Author(s):  
Guoqiang Ma ◽  
Zhaoyin Wen ◽  
Jun Jin ◽  
Yan Lu ◽  
Xiangwei Wu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Volume Expansion ◽  
Cycling Stability ◽  
Sulfur Cathode ◽  
Shuttle Effect ◽  
Excellent Electrochemical Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Sulfur cathode with excellent electrochemical performance based on hollow PANI spheres, which can suppress the shuttle effect and buffer the volume expansion.

Oxidized multiwall carbon nanotube modified separator for high performance lithium–sulfur batteries with high sulfur loading

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89972-89978 ◽  
Author(s):  
Xing Cheng ◽  
Weikun Wang ◽  
Anbang Wang ◽  
Keguo Yuan ◽  
Zhaoqing Jin ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Performance ◽  
High Performance ◽  
Multiwall Carbon Nanotube ◽  
Lithium Sulfur Batteries ◽  
Sulfur Battery ◽  
Multiwall Carbon ◽  
Lithium Sulfur ◽  
High Sulfur Loading ◽  
Modified Separator

An oxidized multiwall carbon nanotube (o-MWCNT) coating (0.4 mg cm−2) for improving the electrochemical performance of lithium–sulfur battery with sulfur loading of 5.0 mg cm−2 ​has been presented.

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.

Lithium-Sulfur Batteries: The Effect of High Sulfur Loading on the Electrochemical Performance

2018 ◽  
Vol 85 (13) ◽  
pp. 295-302 ◽  
Author(s):  
Eunho Cha ◽  
Mumukshu D. Patel ◽  
Tae Youl Choi ◽  
Wonbong Choi
Keyword(s):  
Electrochemical Performance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur ◽  
High Sulfur Loading

Self-limiting Lithiation of Vanadium Diboride Nanosheet as Ultra-stable Mediator Towards High-sulfur Loading and Long-cycle Lithium Sulfur Batteries

2021 ◽  
Author(s):  
Yuwei Zhao ◽  
Hao Yin ◽  
Zhe Zhang ◽  
Chongguang Lyu ◽  
Xuan Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Phase Interface ◽  
Interface Evolution ◽  
Shuttle Effect ◽  
Transfer Processes ◽  
Lithium Sulfur Batteries ◽  
Multi Phase ◽  
Lithium Sulfur ◽  
High Sulfur Loading ◽  
Vanadium Diboride

High performance of lithium-sulfur (Li-S) batteries generally suffers from the sluggish reaction kinetics and notorious shuttle effect, resulting from the multi-phase/interface evolution and multistep electron-transfer/non-transfer processes. In this article, the...

A functional interlayer as a polysulfides blocking layer for high-performance lithium–sulfur batteries

2018 ◽  
Vol 42 (2) ◽  
pp. 1431-1436 ◽  
Author(s):  
Lingxia Yin ◽  
Hui Dou ◽  
Aixiu Wang ◽  
Guiyin Xu ◽  
Ping Nie ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
High Performance ◽  
Blocking Layer ◽  
Physical Barrier ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Self-standing polyaniline–graphene oxide (PANI–GO) interlayer inhibits the shuttle effect by the physical barrier and chemisorption, improving the electrochemical performance for Li–S 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.

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