A Lightweight TiO2/Graphene Interlayer, Applied as a Highly Effective Polysulfide Absorbent for Fast, Long-Life Lithium-Sulfur Batteries

A Lightweight TiO2/Graphene Interlayer, Applied as a Highly Effective Polysulfide Absorbent for Fast, Long-Life Lithium-Sulfur Batteries

An integrated, selective interlayer structure is developed to further mitigate the diffusion of polysulfides, simply by coating the surface of a C–S cathode with a graphene/TiO2 film. It is found that the application of the graphene/TiO2 film as an interlayer enables the porous carbon nanotubes–S ca...

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Veröffentlicht in:Advanced materials (Weinheim) 2015-05, Vol.27 (18), p.2891-2898
Hauptverfasser: Xiao, Zhubing, Yang, Zhi, Wang, Lu, Nie, Huagui, Zhong, Mei'e, Lai, Qianqian, Xu, Xiangju, Zhang, Lijie, Huang, Shaoming
Format: Artikel
Sprache:eng
Schlagworte:
graphene
lithium-sulfur batteries
polysulfides
TiO2
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Zusammenfassung:An integrated, selective interlayer structure is developed to further mitigate the diffusion of polysulfides, simply by coating the surface of a C–S cathode with a graphene/TiO2 film. It is found that the application of the graphene/TiO2 film as an interlayer enables the porous carbon nanotubes–S cathode to exhibit a high reversible specific capacity and extraordinarily excellent cycling stability.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201405637