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Title: Probing Titanium Disulfide-Sulfur Composite Materials for Li-S Batteries via In Situ X-ray Diffraction (XRD)

Abstract

Development of Li-S batteries is hindered by sluggish kinetics resulting from the intrinsic poor conductivity of sulfur and capacity degradation due to solubility of intermediate lithium polysulfides (LiPS). A strategy for overcoming these issues is to use TiS 2, which is a good electrical conductor and LiPS absorbant, as an additive to sulfur electrodes. Furthemore, from a structural perspective, we probed TiS 2-S composite materials during electrochemical discharge and charge reactions in propylene-oxide based glyme (DPGDME) electrolyte using in-situ XRD, revealing the synergistic effects of TiS 2 and S in the composites. TiS 2 was found to function effectively as a conductive additive and improve the utilization of sulfur. Intercalation of Li + into TiS 2 takes place simultaneously with the sulfur-lithium reaction, and contributes favorably to the total realized capacity.

Authors:
 [1];  [2];  [3];  [3];  [4]
  1. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Energy Sciences Directorate
  3. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering and Dept. of Chemistry
  4. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering and Dept. of Chemistry; Brookhaven National Lab. (BNL), Upton, NY (United States). Energy Sciences Directorate
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1377017
Report Number(s):
BNL-114106-2017-JA
Journal ID: ISSN 0013-4651
Grant/Contract Number:  
SC00112704
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 164; Journal Issue: 4; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; conductivity; ether; lithium sulfur battery; polysulfide; titanium(IV) sulfide

Citation Formats

Zhang, Q., Bock, D., Takeuchi, K. J., Marschilok, A. C., and Takeuchi, E. S.. Probing Titanium Disulfide-Sulfur Composite Materials for Li-S Batteries via In Situ X-ray Diffraction (XRD). United States: N. p., 2017. Web. doi:10.1149/2.1661704jes.
Zhang, Q., Bock, D., Takeuchi, K. J., Marschilok, A. C., & Takeuchi, E. S.. Probing Titanium Disulfide-Sulfur Composite Materials for Li-S Batteries via In Situ X-ray Diffraction (XRD). United States. doi:10.1149/2.1661704jes.
Zhang, Q., Bock, D., Takeuchi, K. J., Marschilok, A. C., and Takeuchi, E. S.. Wed . "Probing Titanium Disulfide-Sulfur Composite Materials for Li-S Batteries via In Situ X-ray Diffraction (XRD)". United States. doi:10.1149/2.1661704jes. https://www.osti.gov/servlets/purl/1377017.
@article{osti_1377017,
title = {Probing Titanium Disulfide-Sulfur Composite Materials for Li-S Batteries via In Situ X-ray Diffraction (XRD)},
author = {Zhang, Q. and Bock, D. and Takeuchi, K. J. and Marschilok, A. C. and Takeuchi, E. S.},
abstractNote = {Development of Li-S batteries is hindered by sluggish kinetics resulting from the intrinsic poor conductivity of sulfur and capacity degradation due to solubility of intermediate lithium polysulfides (LiPS). A strategy for overcoming these issues is to use TiS2, which is a good electrical conductor and LiPS absorbant, as an additive to sulfur electrodes. Furthemore, from a structural perspective, we probed TiS2-S composite materials during electrochemical discharge and charge reactions in propylene-oxide based glyme (DPGDME) electrolyte using in-situ XRD, revealing the synergistic effects of TiS2 and S in the composites. TiS2 was found to function effectively as a conductive additive and improve the utilization of sulfur. Intercalation of Li+ into TiS2 takes place simultaneously with the sulfur-lithium reaction, and contributes favorably to the total realized capacity.},
doi = {10.1149/2.1661704jes},
journal = {Journal of the Electrochemical Society},
number = 4,
volume = 164,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}

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Works referenced in this record:

Lithium Batteries and Cathode Materials
journal, October 2004

  • Whittingham, M. Stanley
  • Chemical Reviews, Vol. 104, Issue 10, p. 4271-4302
  • DOI: 10.1021/cr020731c

Liquid electrolyte lithium/sulfur battery: Fundamental chemistry, problems, and solutions
journal, June 2013


Oxidative-Stability Enhancement and Charge Transport Mechanism in Glyme–Lithium Salt Equimolar Complexes
journal, August 2011

  • Yoshida, Kazuki; Nakamura, Megumi; Kazue, Yuichi
  • Journal of the American Chemical Society, Vol. 133, Issue 33, p. 13121-13129
  • DOI: 10.1021/ja203983r