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Title: Sparingly solvating electrolytes for high energy density Lithium–sulfur batteries

Abstract

Moving to lighter and less expensive battery chemistries compared to lithium-ion requires the control of energy storage mechanisms based on chemical transformations rather than intercalation. Lithium sulfur (Li/S) has tremendous theoretical specific energy, but contemporary approaches to control this solution-mediated, precipitation-dissolution chemistry requires using large excesses of electrolyte to fully solubilize the polysulfide intermediate. Achieving reversible electrochemistry under lean electrolyte operation is the only path for Li/S to move beyond niche applications to potentially transformational performance. An emerging topic for Li/S research is the use of sparingly solvating electrolytes and the creation of design rules for discovering new electrolyte systems that fundamentally decouple electrolyte volume from reaction mechanism. Furthermore, this perspective presents an outlook for sparingly solvating electrolytes as the key path forward for longer-lived, high-energy density Li/S batteries including an overview of this promising new concept and some strategies for accomplishing it.

Authors:
 [1];  [1];  [2];  [3];  [4];  [1]
  1. Argonne National Lab. (ANL), Lemont, IL (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
  4. Argonne National Lab. (ANL), Lemont, IL (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1339571
Alternate Identifier(s):
OSTI ID: 1341408
Report Number(s):
SAND-2016-8614J
Journal ID: ISSN 2380-8195; 128280
Grant/Contract Number:
AC02-06CH11357; AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Energy Letters
Additional Journal Information:
Journal Volume: 1; Journal Issue: 3; Journal ID: ISSN 2380-8195
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Cheng, Lei, Curtiss, Larry A., Zavadil, Kevin R., Gewirth, Andrew A., Shao, Yuyan, and Gallagher, Kevin G.. Sparingly solvating electrolytes for high energy density Lithium–sulfur batteries. United States: N. p., 2016. Web. doi:10.1021/acsenergylett.6b00194.
Cheng, Lei, Curtiss, Larry A., Zavadil, Kevin R., Gewirth, Andrew A., Shao, Yuyan, & Gallagher, Kevin G.. Sparingly solvating electrolytes for high energy density Lithium–sulfur batteries. United States. doi:10.1021/acsenergylett.6b00194.
Cheng, Lei, Curtiss, Larry A., Zavadil, Kevin R., Gewirth, Andrew A., Shao, Yuyan, and Gallagher, Kevin G.. Mon . "Sparingly solvating electrolytes for high energy density Lithium–sulfur batteries". United States. doi:10.1021/acsenergylett.6b00194. https://www.osti.gov/servlets/purl/1339571.
@article{osti_1339571,
title = {Sparingly solvating electrolytes for high energy density Lithium–sulfur batteries},
author = {Cheng, Lei and Curtiss, Larry A. and Zavadil, Kevin R. and Gewirth, Andrew A. and Shao, Yuyan and Gallagher, Kevin G.},
abstractNote = {Moving to lighter and less expensive battery chemistries compared to lithium-ion requires the control of energy storage mechanisms based on chemical transformations rather than intercalation. Lithium sulfur (Li/S) has tremendous theoretical specific energy, but contemporary approaches to control this solution-mediated, precipitation-dissolution chemistry requires using large excesses of electrolyte to fully solubilize the polysulfide intermediate. Achieving reversible electrochemistry under lean electrolyte operation is the only path for Li/S to move beyond niche applications to potentially transformational performance. An emerging topic for Li/S research is the use of sparingly solvating electrolytes and the creation of design rules for discovering new electrolyte systems that fundamentally decouple electrolyte volume from reaction mechanism. Furthermore, this perspective presents an outlook for sparingly solvating electrolytes as the key path forward for longer-lived, high-energy density Li/S batteries including an overview of this promising new concept and some strategies for accomplishing it.},
doi = {10.1021/acsenergylett.6b00194},
journal = {ACS Energy Letters},
number = 3,
volume = 1,
place = {United States},
year = {Mon Jul 11 00:00:00 EDT 2016},
month = {Mon Jul 11 00:00:00 EDT 2016}
}

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Cited by: 18works
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