Paving the Way for Using Li2S Batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Rui Xu
  • Xiaofeng Zhang
  • Cun Yu
  • James C. M. Li
  • Ilias Belharouak

Detail(s)

Original languageEnglish
Pages (from-to)2457-2460
Journal / PublicationChemSusChem
Volume7
Issue number9
Publication statusPublished - 1 Sep 2014
Externally publishedYes

Abstract

In this work, a novel lithium–sulfur battery was developed comprising Li2S as the cathode, lithium metal as the anode and polysulfide-based solution as the electrolyte. The electrochemical performances of these Li2S-based cells strongly depended upon the nature of the electrolytes. In the presence of the conventional electrolyte that consisted of lithium bis(trifluoromethanesulfonyl)-imide (LiTFSI) salt dissolved in a solvent combination of dimethoxyethane (DME)/1,3-dioxolane (DOL), the Li/Li2S cells showed sluggish kinetics, which translated into poor cycling and capacity retention. However, when using small amounts of polysulfides in the electrolyte along with a shuttle inhibitor the Li2S cathode was efficiently activated in the cell with the generation of over 1000 mAh g−1capacity and good cycle life.

Research Area(s)

  • electrolyte, energy storage, lithium disulfide, lithium polysulfide, lithium sulfur batteries

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to lbscholars@cityu.edu.hk.

Citation Format(s)

Paving the Way for Using Li2S Batteries. / Xu, Rui; Zhang, Xiaofeng; Yu, Cun; Ren, Yang; Li, James C. M.; Belharouak, Ilias.

In: ChemSusChem, Vol. 7, No. 9, 01.09.2014, p. 2457-2460.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review