Open AccessModel Membrane‐Free Li–S Batteries for Enhanced Performance and Cycle Life
Author(s) -
Hendrickson Kenville E.,
Ma Lin,
Cohn Gil,
Lu Yingying,
Archer Lynden A.
Publication year - 2015
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201500068
Subject(s) - polysulfide , electrolyte , separator (oil production) , dissolution , cathode , sulfur , membrane , chemical engineering , lithium–sulfur battery , materials science , lithium (medication) , chemistry , electrode , metallurgy , engineering , medicine , physics , thermodynamics , endocrinology , biochemistry
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.