title: Graphene-enveloped sulfur in a one pot reaction: a cathode with good coulombic efficiency and high practical sulfur content.
abstract: Graphene-sulfur composites with sulfur fractions as high as 87 wt% are prepared using a simple one-pot, scalable method. The graphene envelops the sulfur particles, providing a conductive shrink-wrap for electron transport. These materials are efficient cathodes for Li-S batteries, yielding 93% coulombic efficiency over 50 cycles with good capacity.
authors.affiliation: Department of Chemistry and the Waterloo Institute for Nanotechnology, 200 University Ave W., Waterloo, Ontario, Canada.
authors.forename: Scott
authors.initials: S
authors.lastname: Evers
authors.forename: Linda F
authors.initials: LF
authors.lastname: Nazar