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Title: The effect of water-containing electrolyte on lithium-sulfur batteries

Abstract

Dissolved polysulfides, formed during Li-S battery operation, freely migrate and react with both the Li anode and the sulfur cathode. These soluble polysulfides shuttle between the anode and cathode – the so-called shuttle effect – resulting in an infinite recharge process and poor Columbic efficiency. We present that water present as an additive in the Li-S battery electrolyte is found to reduce the shuttle effect in Li-S batteries. Batteries where water content was below 50 ppm exhibited a substantial shuttle effect and low charge capacity. Alternatively, addition of 250 ppm water led to stable charge/discharge behavior with high Coulombic efficiency. XPS results show that H 2O addition results in the formation of solid electrolyte interphase (SEI) film with more LiOH on Li anode which protects the Li anode from the polysulfides. Batteries cycled without water result in a SEI film with more Li 2CO 3 likely formed by direct contact between the Li metal and the solvent. Intermediate quantities of H 2O in the electrolyte result in high cycle efficiency for the first few cycles which then rapidly decays. Lastly, this suggests that H 2O is consumed during battery cycling, likely by interaction with freshly exposed Li metal formed duringmore » Li deposition.« less

Authors:
 [1];  [2];  [3];  [3]; ORCiD logo [1]
  1. University of Illinois at Urbana-Champaign, Urbana, IL (United States). Department of Chemistry
  2. University of Illinois at Urbana-Champaign, Urbana, IL (United States). Frederick Seitz Materials Research Laboratory
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1478467
Alternate Identifier(s):
OSTI ID: 1549460
Report Number(s):
SAND-2018-9770J
Journal ID: ISSN 0378-7753; 667648
Grant/Contract Number:  
AC04-94AL85000; AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 369; Journal Issue: C; Journal ID: ISSN 0378-7753
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; Li-S batteries; Shuttle mechanism; Water additive; SEI layer

Citation Formats

Wu, Heng-Liang, Haasch, Richard T., Perdue, Brian R., Apblett, Christopher A., and Gewirth, Andrew A. The effect of water-containing electrolyte on lithium-sulfur batteries. United States: N. p., 2017. Web. doi:10.1016/j.jpowsour.2017.09.044.
Wu, Heng-Liang, Haasch, Richard T., Perdue, Brian R., Apblett, Christopher A., & Gewirth, Andrew A. The effect of water-containing electrolyte on lithium-sulfur batteries. United States. https://doi.org/10.1016/j.jpowsour.2017.09.044
Wu, Heng-Liang, Haasch, Richard T., Perdue, Brian R., Apblett, Christopher A., and Gewirth, Andrew A. Fri . "The effect of water-containing electrolyte on lithium-sulfur batteries". United States. https://doi.org/10.1016/j.jpowsour.2017.09.044. https://www.osti.gov/servlets/purl/1478467.
@article{osti_1478467,
title = {The effect of water-containing electrolyte on lithium-sulfur batteries},
author = {Wu, Heng-Liang and Haasch, Richard T. and Perdue, Brian R. and Apblett, Christopher A. and Gewirth, Andrew A.},
abstractNote = {Dissolved polysulfides, formed during Li-S battery operation, freely migrate and react with both the Li anode and the sulfur cathode. These soluble polysulfides shuttle between the anode and cathode – the so-called shuttle effect – resulting in an infinite recharge process and poor Columbic efficiency. We present that water present as an additive in the Li-S battery electrolyte is found to reduce the shuttle effect in Li-S batteries. Batteries where water content was below 50 ppm exhibited a substantial shuttle effect and low charge capacity. Alternatively, addition of 250 ppm water led to stable charge/discharge behavior with high Coulombic efficiency. XPS results show that H2O addition results in the formation of solid electrolyte interphase (SEI) film with more LiOH on Li anode which protects the Li anode from the polysulfides. Batteries cycled without water result in a SEI film with more Li2CO3 likely formed by direct contact between the Li metal and the solvent. Intermediate quantities of H2O in the electrolyte result in high cycle efficiency for the first few cycles which then rapidly decays. Lastly, this suggests that H2O is consumed during battery cycling, likely by interaction with freshly exposed Li metal formed during Li deposition.},
doi = {10.1016/j.jpowsour.2017.09.044},
url = {https://www.osti.gov/biblio/1478467}, journal = {Journal of Power Sources},
issn = {0378-7753},
number = C,
volume = 369,
place = {United States},
year = {2017},
month = {10}
}

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Cited by: 6 works
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Works referencing / citing this record:

Recent Progress in Liquid Electrolyte-Based Li–S Batteries: Shuttle Problem and Solutions
journal, November 2018


Recent Progress in Liquid Electrolyte-Based Li–S Batteries: Shuttle Problem and Solutions
journal, November 2018


Anode Interface Engineering and Architecture Design for High‐Performance Lithium–Sulfur Batteries
journal, January 2019


Elektrolytadditive für Lithiummetallanoden und wiederaufladbare Lithiummetallbatterien: Fortschritte und Perspektiven
journal, October 2018


Electrolyte Additives for Lithium Metal Anodes and Rechargeable Lithium Metal Batteries: Progress and Perspectives
journal, October 2018


Toward Better Lithium–Sulfur Batteries: Functional Non-aqueous Liquid Electrolytes
journal, August 2018


Electron regulation enabled selective lithium deposition for stable anodes of lithium-metal batteries
journal, January 2019