A scalable hybrid separator for a high performance lithium-sulfur batteryElectronic supplementary information (ESI) available. See DOI: 10.1039/c5cc00444f

A newly designed hybrid separator composed of a glassy fiber paper and a microporous membrane is effectively integrated into a Li-S battery. Superior cell performance up to 500 cycles is achieved even with commercially available pristine sulfur as cathode material. This fascinating study demonstrates a largely restrained polysulfides shuttle process toward practical Li-S battery application. A hybrid separator composed of a glassy fiber paper and a microporous membrane is effectively integrated into a Li-S battery.