title: A polyethylene glycol-supported microporous carbon coating as a polysulfide trap for utilizing pure sulfur cathodes in lithium-sulfur batteries.
abstract: A composite separator with a thin-film polysulfide trap is developed for lithium-sulfur batteries. A polyethylene glycol-supported microporous carbon coating (MPC/PEG coating) on a Celgard separator suppresses polysulfide diffusion through its physical and chemical polysulfide-trapping capabilities. The MPC/PEG-coated separator thus facilitates the use of pure sulfur cathodes that generally suffer from poor cyclability and low electrochemical utilization.
authors.affiliation: Materials Science and Engineering Program & Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712, USA.
authors.forename: Sheng-Heng
authors.initials: SH
authors.lastname: Chung
authors.forename: Arumugam
authors.initials: A
authors.lastname: Manthiram
keywords: cell configuration; lithium-sulfur batteries; long cycle life; microporous carbon; polysulfide traps