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Model Membrane-Free Li-S Batteries for Enhanced Performance and Cycle Life
Kenville E Hendrickson1, Lin Ma2, Gil Cohn1
1School of Chemical and Biomolecular Engineering Cornell University 120 Olin Hall Ithaca NY 14853 USA.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|December 17, 2016
Abstract:
The success of the rechargeable Li-S cell is limited in part by the dissolution of lithium-polysulfide in the electrolyte. Remarkably, it is found that removal of the conventional membrane separator in a Li-S cell improves sulfur utilization and cycling performance, whether the sulfur is initially contained in the cathode or electrolyte. An optimized cell design yields discharge capacities as high as 980 mA h g-1 after 100 cycles.

