Sulfur Encapsulated in Graphitic Carbon Nanocages for High-Rate and Long-Cycle Lithium-Sulfur Batteries

2016 ◽  
Vol 28 (43) ◽  
pp. 9539-9544 ◽  
Author(s):  
Juan Zhang ◽  
Chun-Peng Yang ◽  
Ya-Xia Yin ◽  
Li-Jun Wan ◽  
Yu-Guo Guo
2018 ◽  
Vol 6 (45) ◽  
pp. 23062-23070 ◽  
Author(s):  
Kexuan Liao ◽  
Shuting Chen ◽  
Huanhuan Wei ◽  
Jinchen Fan ◽  
Qunjie Xu ◽  
...  

An effective and novel structure of pure hollow nanographite with micropores (∼8 Å) was successfully synthesized, and high-rate and long cycle life lithium–sulfur batteries were obtained.


Nanoscale ◽  
2018 ◽  
Vol 10 (35) ◽  
pp. 16935-16942 ◽  
Author(s):  
Q. Jin ◽  
N. Zhang ◽  
C. C. Zhu ◽  
H. Gao ◽  
X. T. Zhang

Lithium–sulfur batteries suffer from poor cycling stability and inferior rate capability, mainly caused by low conductivity and lithium polysulfide dissolution.


2018 ◽  
Vol 276 ◽  
pp. 111-117 ◽  
Author(s):  
Chih-Hao Tsao ◽  
Chun-Han Hsu ◽  
Jing-De Zhou ◽  
Chia-Wei Chin ◽  
Ping-Lin Kuo ◽  
...  

2016 ◽  
Vol 55 (47) ◽  
pp. 14818-14822 ◽  
Author(s):  
Yingying Mi ◽  
Wen Liu ◽  
Ke R. Yang ◽  
Jianbing Jiang ◽  
Qi Fan ◽  
...  

2021 ◽  
Vol 10 (1) ◽  
pp. 20-33
Author(s):  
Lian Wu ◽  
Yongqiang Dai ◽  
Wei Zeng ◽  
Jintao Huang ◽  
Bing Liao ◽  
...  

Abstract Fast charge transfer and lithium-ion transport in the electrodes are necessary for high performance Li–S batteries. Herein, a N-doped carbon-coated intercalated-bentonite (Bent@C) with interlamellar ion path and 3D conductive network architecture is designed to improve the performance of Li–S batteries by expediting ion/electron transport in the cathode. The interlamellar ion pathways are constructed through inorganic/organic intercalation of bentonite. The 3D conductive networks consist of N-doped carbon, both in the interlayer and on the surface of the modified bentonite. Benefiting from the unique structure of the Bent@C, the S/Bent@C cathode exhibits a high initial capacity of 1,361 mA h g−1 at 0.2C and achieves a high reversible capacity of 618.1 m Ah g−1 at 2C after 500 cycles with a sulfur loading of 2 mg cm−2. Moreover, with a higher sulfur loading of 3.0 mg cm−2, the cathode still delivers a reversible capacity of 560.2 mA h g−1 at 0.1C after 100 cycles.


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