Foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for lithium–sulfur batteries

Yiyin Mao, Gaoran Li, Yi Guo, Zhoupeng Li, Chengdu Liang, Xinsheng Peng () and Zhan Lin ()
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Yiyin Mao: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University
Gaoran Li: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biochemical Engineering, Zhejiang University
Yi Guo: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University
Zhoupeng Li: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biochemical Engineering, Zhejiang University
Chengdu Liang: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biochemical Engineering, Zhejiang University
Xinsheng Peng: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University
Zhan Lin: Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biochemical Engineering, Zhejiang University

Nature Communications, 2017, vol. 8, issue 1, 1-8

Abstract: Abstract Lithium–sulfur batteries are promising technologies for powering flexible devices due to their high energy density, low cost and environmental friendliness, when the insulating nature, shuttle effect and volume expansion of sulfur electrodes are well addressed. Here, we report a strategy of using foldable interpenetrated metal-organic frameworks/carbon nanotubes thin film for binder-free advanced lithium–sulfur batteries through a facile confinement conversion. The carbon nanotubes interpenetrate through the metal-organic frameworks crystal and interweave the electrode into a stratified structure to provide both conductivity and structural integrity, while the highly porous metal-organic frameworks endow the electrode with strong sulfur confinement to achieve good cyclability. These hierarchical porous interpenetrated three-dimensional conductive networks with well confined S8 lead to high sulfur loading and utilization, as well as high volumetric energy density.

Date: 2017
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DOI: 10.1038/ncomms14628

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