Lean-electrolyte lithium–sulfur electrochemical cells with high-loading carbon nanotube/nanofiber–polysulfide cathodes

2021 ◽  
Vol 57 (16) ◽  
pp. 2009-2012 ◽  
Author(s):  
Yin-Ju Yen ◽  
Sheng-Heng Chung

A carbon-nanotube/nanofiber–polysulfide cathode achieves long-term cycle stability and explores the failure mechanism of a lithium–sulfur cell with high sulfur loading/content at a lean electrolyte condition.

2020 ◽  
Vol 8 (13) ◽  
pp. 6276-6282 ◽  
Author(s):  
Weini Ge ◽  
Lu Wang ◽  
Chuanchuan Li ◽  
Chunsheng Wang ◽  
Debao Wang ◽  
...  

Porous Co-NbN spheres with excellent conductivity are used as sulfur hosts for lithium-sulfur batteries, which deliver excellent long-term cycle stability and performance with a high sulfur loading and lean electrolyte.


2018 ◽  
Vol 11 (9) ◽  
pp. 2372-2381 ◽  
Author(s):  
Gaoran Li ◽  
Wen Lei ◽  
Dan Luo ◽  
Yaping Deng ◽  
Zhiping Deng ◽  
...  

Stringed “tube on cube” hybrid architecture is developed for high-energy-density lithium–sulfur batteries with high sulfur loading and lean electrolyte.


Nanoscale ◽  
2018 ◽  
Vol 10 (46) ◽  
pp. 21790-21797 ◽  
Author(s):  
Miao Zhang ◽  
Kamran Amin ◽  
Meng Cheng ◽  
Hongxin Yuan ◽  
Lijuan Mao ◽  
...  

This work reports the assembly of a carbon nanotube hybrid 3D flexible multifunctional film, which further adsorbs sulfur nanoparticles to form a flexible electrode. This electrode offers considerable potential for practical application in flexible Li–S batteries.


2019 ◽  
Vol 18 ◽  
pp. 289-310 ◽  
Author(s):  
Masud Rana ◽  
Syed Abdul Ahad ◽  
Ming Li ◽  
Bin Luo ◽  
Lianzhou Wang ◽  
...  

2015 ◽  
Vol 3 (36) ◽  
pp. 18605-18610 ◽  
Author(s):  
Jiarui He ◽  
Yuanfu Chen ◽  
Pingjian Li ◽  
Fei Fu ◽  
Zegao Wang ◽  
...  

A facile method is presented to synthesize three-dimensional carbon nanotube/graphene–sulfur (3DCGS) sponge with a high sulfur loading of 80.1%.


2018 ◽  
Vol 6 (36) ◽  
pp. 17473-17480 ◽  
Author(s):  
Yu-Si Liu ◽  
Chao Ma ◽  
Yu-Lin Bai ◽  
Xue-Yan Wu ◽  
Qian-Chen Zhu ◽  
...  

A 3-dimensional N-doped CNT sponge with embedded Fe/Fe3C nanoparticles as flexible binder-free cathodes for high sulfur loading Li–S batteries.


RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89972-89978 ◽  
Author(s):  
Xing Cheng ◽  
Weikun Wang ◽  
Anbang Wang ◽  
Keguo Yuan ◽  
Zhaoqing Jin ◽  
...  

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.


2019 ◽  
Vol 11 (7) ◽  
pp. 6986-6994 ◽  
Author(s):  
Yueying Peng ◽  
Zhipeng Wen ◽  
Chaoyue Liu ◽  
Jing Zeng ◽  
Yunhui Wang ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yingyi Huang ◽  
Mahdokht Shaibani ◽  
Tanesh D. Gamot ◽  
Mingchao Wang ◽  
Petar Jovanović ◽  
...  

AbstractThe viability of lithium-sulfur batteries as an energy storage technology depends on unlocking long-term cycle stability. Most instability stems from the release and transport of polysulfides from the cathode, which causes mossy growth on the lithium anode, leading to continuous consumption of electrolyte. Therefore, development of a durable cathode with minimal polysulfide escape is critical. Here, we present a saccharide-based binder system that has a capacity for the regulation of polysulfides due to its reducing properties. Furthermore, the binder promotes the formation of viscoelastic filaments during casting which endows the sulfur cathode with a desirable web-like microstructure. Taken together this leads to 97% sulfur utilisation with a cycle life of 1000 cycles (9 months) and capacity retention (around 700 mAh g−1 after 1000 cycles). A pouch cell prototype with a specific energy of up to 206 Wh kg−1 is produced, demonstrating the promising potential for practical applications.


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