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Title: Stability of the Solid Electrolyte Interface on the Li Electrode in Li–S Batteries

In this study, by means of high performance liquid chromatography–mass spectroscopy, the concentration of sulfur and polysulfides was determined in nonaqueous electrolytes. The stability of sulfur and Li in eight electrolytes was studied quantitatively. It was found that sulfur reacted with Li in most of the commonly used electrolytes for lithium–sulfur batteries. The reaction products between sulfur and Li were qualitatively identified. In some cases, the solid electrolyte interface on the Li can successfully prevent the interaction between S and Li; however, it was found that the solid electrolyte interface was damaged by polysulfide ions.
 [1] ;  [2] ;  [1]
  1. Univ. of Wisconsin, Milwaukee, WI (United States). Department of Mechanical Engineering, College of Engineering and Applied Science
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Department
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 1944-8244; R&D Project: EST431; KC0207010
Grant/Contract Number:
Accepted Manuscript
Journal Name:
ACS Applied Materials and Interfaces
Additional Journal Information:
Journal Volume: 8; Journal Issue: 16; Journal ID: ISSN 1944-8244
American Chemical Society
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Country of Publication:
United States
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; HPLC; Li sulfur reaction; lithium−sulfur battery; polysulfide identification; SEI stability