title: Encapsulating MWNTs into hollow porous carbon nanotubes: a tube-in-tube carbon nanostructure for high-performance lithium-sulfur batteries.
abstract: A tube-in-tube carbon nanostructure (TTCN) with multi-walled carbon nanotubes (MWNTs) confined within hollow porous carbon nanotubes is synthesized for Li-S batteries. The structure is designed to enhance the electrical conductivity, hamper the dissolution of lithium polysulfide, and provide large pore volume for sulfur impregnation. As a cathode material for Li-S batteries, the S-TTCN composite with 71 wt% sulfur content delivers high reversible capacity, good cycling performance as well as excellent rate capabilities.
authors.affiliation: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, YangQiao West Road 155#, Fuzhou, 350002, P.R. China; School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhao
authors.forename: Wangliang
authors.initials: W
authors.lastname: Wu
authors.forename: Jiaxin
authors.initials: J
authors.lastname: Li
authors.forename: Zhichuan
authors.initials: Z
authors.lastname: Xu
authors.forename: Lunhui
authors.initials: L
authors.lastname: Guan
keywords: carbon nanotube; cathodes; high pore volume; lithium sulfur batteries; tube-in-tube carbon nanostructure