Multi-shelled hollow carbon nanospheres for lithium-sulfur batteries with superior performances

Chen, Shuangqiang, Huang, Xiaodan, Sun, Bing, Zhang, Jinqiang, Liu, Hao and Wang, Guoxiu (2014) Multi-shelled hollow carbon nanospheres for lithium-sulfur batteries with superior performances. Journal of Materials Chemistry A, 2 38: 16199-16207. doi:10.1039/c4ta03877k


Author Chen, Shuangqiang
Huang, Xiaodan
Sun, Bing
Zhang, Jinqiang
Liu, Hao
Wang, Guoxiu
Title Multi-shelled hollow carbon nanospheres for lithium-sulfur batteries with superior performances
Journal name Journal of Materials Chemistry A   Check publisher's open access policy
ISSN 2050-7496
2050-7488
Publication date 2014-10-14
Sub-type Article (original research)
DOI 10.1039/c4ta03877k
Open Access Status Not yet assessed
Volume 2
Issue 38
Start page 16199
End page 16207
Total pages 9
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Formatted abstract
Lithium-sulfur batteries are regarded as a promising energy storage system. However, they are plagued by rapid capacity decay, low coulombic efficiency, a severe shuttle effect and low sulfur loading in cathodes. To address these problems, effective carriers are highly demanded to encapsulate sulfur and extend the cycle life. Here, we report an aqueous emulsion approach and in situ sulfur impregnation to synthesize multi-shelled hollow carbon nanosphere-encapsulated sulfur composites with a high percentage of sulfur loading (86 wt%). When applied as cathodes in lithium-sulfur batteries, the composite materials delivered a high specific capacity of 1350 mA h g-1 and excellent capacity retention (92% for 200 cycles). Further measurements at high current densities also demonstrate significantly enhanced cyclability and high rate capability.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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