title: Highly dispersed sulfur in a porous aromatic framework as a cathode for lithium-sulfur batteries.
abstract: Lithium-sulfur (Li-S) batteries are attractive candidates for transportation applications because of their high energy density (2600 W h kg(-1)). However, Li-S batteries have failed to achieve commercial success, due to the rapid capacity fading with cycling caused mainly by the "shuttle" phenomenon. Here, we report a feasible approach to mitigate this issue using a porous aromatic framework (PAF) as a hosting substrate in Li-S batteries. As a cathode material, the composite of PAF with sulfur exhibits high capacity and excellent cycling stability in both a sulfone electrolyte, 1.0 M LiPF6-MiPS, and an ionic liquid electrolyte, 0.5 M LiTFSI-MPPY·TFSI.
authors.affiliation: Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA. guob@ornl.gov
authors.forename: Bingkun
authors.initials: B
authors.lastname: Guo
authors.forename: Teng
authors.initials: T
authors.lastname: Ben
authors.forename: Zhonghe
authors.initials: Z
authors.lastname: Bi
authors.forename: Gabriel M
authors.initials: GM
authors.lastname: Veith
authors.forename: Xiao-Guang
authors.initials: XG
authors.lastname: Sun
authors.forename: Shilun
authors.initials: S
authors.lastname: Qiu
authors.forename: Sheng
authors.initials: S
authors.lastname: Dai