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Title: Interaction of TiS 2 and Sulfur in Li-S Battery System

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.1631706jes· OSTI ID:1377018
 [1];  [2];  [3];  [4];  [4];  [5];  [6];  [5];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Sustainable Energy Technologies Dept.
  2. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Energy Sciences Directorate
  4. Stony Brook Univ., NY (United States). Dept. of Chemistry
  5. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering and Dept. of Chemistry
  6. 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
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With the ability to adsorb polysulfide, electronically conductive and electrochemically active TiS2 is an effective multifunctional cathode additive to improve Li-S battery cycling performance. Furthermore, by using X-ray Photoelectron Spectroscopy (XPS), direct evidence is obtained to demonstrate the strong interaction between Li-polysulfide and TiS2. The observation of Li signature on Li2S8 treated TiS2 proves that the TiS2 possesses the ability to adsorb Li-polysulfides species on its surface. An electron density transfer from Ti to Li and S is identified based on the positions of the peaks in the XPS spectrum before and after the interaction, which is consistent with the theoretically predicted polysulfide-TiS2 interaction models in the literature. TiS2 sample with 2.5x higher BET surface area is obtained by milling the raw TiS2 particles and used as cathode additive in the sulfur electrode. Furthermore, in the presence of TiS2 additive, long cycle life and improved sulfur utilization of Li-S cells under high rate discharge are demonstrated. In addition, we find that a uniform TiS2 distribution in the sulfur-TiS2 hybrid electrode is vital in determining its effectiveness in enhancing the performance of sulfur electrodes. Thus, by processing method and condition should be very important considerations in future development of sulfur electrodes with TiS2 additive.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1377018
Report Number(s):
BNL-114113-2017-JA
Journal Information:
Journal of the Electrochemical Society, Vol. 164, Issue 6; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 56 works
Citation information provided by
Web of Science

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Cited By (22)

Rational Design of MXene/1T-2H MoS 2 -C Nanohybrids for High-Performance Lithium-Sulfur Batteries journal March 2018
TiS 2 as an Advanced Conversion Electrode for Sodium-Ion Batteries with Ultra-High Capacity and Long-Cycle Life journal September 2018
Ultrathin 2D TiS 2 Nanosheets for High Capacity and Long-Life Sodium Ion Batteries journal January 2019
A Li 2 S‐TiS 2 ‐Electrolyte Composite for Stable Li 2 S‐Based Lithium–Sulfur Batteries journal June 2019
Sandwich‐Like Ultrathin TiS 2 Nanosheets Confined within N, S Codoped Porous Carbon as an Effective Polysulfide Promoter in Lithium‐Sulfur Batteries journal July 2019
Hollow Multi‐Shelled Structural TiO 2− x with Multiple Spatial Confinement for Long‐Life Lithium–Sulfur Batteries journal May 2019
Hollow Multi-Shelled Structural TiO 2− x with Multiple Spatial Confinement for Long-Life Lithium-Sulfur Batteries journal May 2019
Graphene Oxide Induced Growth of Nitrogen‐Doped Carbon Nanotubes as a 1D/2D Composite for High‐Performance Lithium‐Sulfur Batteries journal January 2019
Defect Control in the Synthesis of 2 D MoS 2 Nanosheets: Polysulfide Trapping in Composite Sulfur Cathodes for Li–S Batteries journal March 2020
Metal Chalcogenides: Paving the Way for High‐Performance Sodium/Potassium‐Ion Batteries journal October 2019
Pyrite-based mixtures as composite electrodes for lithium-sulfur batteries journal November 2018
Harnessing the unique properties of 2D materials for advanced lithium–sulfur batteries journal January 2019
Vertically oriented TiS 2−x nanobelt arrays as binder- and carbon-free intercalation electrodes for Li- and Na-based energy storage devices journal January 2018
A soluble single atom catalyst promotes lithium polysulfide conversion in lithium sulfur batteries journal January 2019
Large-diameter and heteroatom-doped graphene nanotubes decorated with transition metals as carbon hosts for lithium–sulfur batteries journal January 2019
New insights into the phase evolution in CuS during lithiation and delithiation processes journal January 2019
Effect of Electrolyte on High Sulfur Loading Li-S Batteries journal January 2018
Determination of Cyclability of Li/FeS 2 Batteries Based on Measurement of Coulombic Efficiency journal September 2018
Understanding the Li-ion storage mechanism in a carbon composited zinc sulfide electrode text January 2019
Understanding the Li-ion storage mechanism in a carbon composited zinc sulfide electrode journal January 2019
Understanding the Li-ion storage mechanism in a carbon composited zinc sulfide electrode text January 2019
Operando Multi-modal Synchrotron Investigation for Structural and Chemical Evolution of Cupric Sulfide (CuS) Additive in Li-S battery journal October 2017

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Related Subjects

25 ENERGY STORAGE
Li-S battery
polysulfide-TiS2 interaction
process method
sulfur-TiS2 hybrid electrode
TiS2 additive
uniform distribution