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Model Membrane-Free Li-S Batteries for Enhanced Performance and Cycle Life.

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.

SUBMITTER: Hendrickson KE 

PROVIDER: S-EPMC5115367 | biostudies-other | 2015 May

REPOSITORIES: biostudies-other

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Model Membrane-Free Li-S Batteries for Enhanced Performance and Cycle Life.

Hendrickson Kenville E KE   Ma Lin L   Cohn Gil G   Lu Yingying Y   Archer Lynden A LA  

Advanced science (Weinheim, Baden-Wurttemberg, Germany) 20150415 5

<b>The success of the rechargeable Li-S cell</b> 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<sup>-1</sup> after 100 cycles. ...[more]