title: A high-density graphene-sulfur assembly: a promising cathode for compact Li-S batteries.
abstract: This work reports a high-density graphene/sulfur assembly for compact Li-S batteries with high volumetric capacity, which retains good structural stability and conductivity. This dense assembly was prepared by a reduction-triggered self-assembly of graphene oxide with simultaneous deposition of sulfur, followed by unique evaporation-induced spatial volume shrinkage. This assembly has an ultrahigh density, delivering an unprecedented volumetric capacity that is much higher than common carbon/sulfur cathodes. In particular, the unique spatial confinement derived from the shrinkage of the graphene/sulfur assembly is favorable for stabilizing sulfur cathodes.
authors.affiliation: Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China. qhyangcn@tju.edu.cn.
authors.forename: Chen
authors.initials: C
authors.lastname: Zhang
authors.forename: Dong-Hai
authors.initials: DH
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Lv
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Wei
authors.forename: Guang-Min
authors.initials: GM
authors.lastname: Zhou
authors.forename: Shaogang
authors.initials: S
authors.lastname: Wang
authors.forename: Feng
authors.initials: F
authors.lastname: Li
authors.forename: Bao-Hua
authors.initials: BH
authors.lastname: Li
authors.forename: Feiyu
authors.initials: F
authors.lastname: Kang
authors.forename: Quan-Hong
authors.initials: QH
authors.lastname: Yang