Enhancing the electrochemical performance of lithium sulfur batteries using cetyl trimethylammonium bromide coated separator

Sung Ho Cho, Sung Man Cho, Ki Yoon Bae, Byung Hyuk Kim, Byung Dae Son, Wooyoung Yoon

Research output: Contribution to journalArticle

Abstract

In this study, cetyltrimethylammonium bromide (CTAB)-modified separator is developed by using a simple and facile method for lithium–sulfur (Li–S) batteries. CTAB is coated on only one side of separator using a doctor blade. The coated CTAB on the separator improves wettability between separator and electrolyte and ionic conductivity of separator. In addition, CTAB also inhibits the migration of dissolved polysulfides to the anode side. These phenomena improve the electrochemical properties of Li–S batteries using CTAB-coated separators. Cells using the CTAB-coated separator exhibit an initial capacity of 1136 mAh g−1 at 0.2 C-rate. In addition, they can maintain a higher capacity (765 mAh g−1) and capacity retention rate (67.3%) after 150 cycles as compared to pristine Li–S batteries (549 mAh g−1 and 48.5%, respectively). These results indicate that the CTAB-coated separator can enhance the performance of Li–S batteries. Graphical abstract: [Figure not available: see fulltext.].

Original languageEnglish
JournalJournal of Applied Electrochemistry
DOIs
Publication statusAccepted/In press - 2018 Jan 1

Fingerprint

Separators
Bromides
Polysulfides
Lithium sulfur batteries
Ionic conductivity
cetrimonium
Electrochemical properties
Electrolytes
Wetting
Anodes

Keywords

  • Cetyltrimethylammonium bromide
  • CTAB-coated separator
  • Li–S battery
  • Separator modification

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry
  • Materials Chemistry

Cite this

Enhancing the electrochemical performance of lithium sulfur batteries using cetyl trimethylammonium bromide coated separator. / Cho, Sung Ho; Cho, Sung Man; Bae, Ki Yoon; Kim, Byung Hyuk; Son, Byung Dae; Yoon, Wooyoung.

In: Journal of Applied Electrochemistry, 01.01.2018.

Research output: Contribution to journalArticle

@article{b9fa7fc7020c495fb5eab774bf4396a9,
title = "Enhancing the electrochemical performance of lithium sulfur batteries using cetyl trimethylammonium bromide coated separator",
abstract = "In this study, cetyltrimethylammonium bromide (CTAB)-modified separator is developed by using a simple and facile method for lithium–sulfur (Li–S) batteries. CTAB is coated on only one side of separator using a doctor blade. The coated CTAB on the separator improves wettability between separator and electrolyte and ionic conductivity of separator. In addition, CTAB also inhibits the migration of dissolved polysulfides to the anode side. These phenomena improve the electrochemical properties of Li–S batteries using CTAB-coated separators. Cells using the CTAB-coated separator exhibit an initial capacity of 1136 mAh g−1 at 0.2 C-rate. In addition, they can maintain a higher capacity (765 mAh g−1) and capacity retention rate (67.3{\%}) after 150 cycles as compared to pristine Li–S batteries (549 mAh g−1 and 48.5{\%}, respectively). These results indicate that the CTAB-coated separator can enhance the performance of Li–S batteries. Graphical abstract: [Figure not available: see fulltext.].",
keywords = "Cetyltrimethylammonium bromide, CTAB-coated separator, Li–S battery, Separator modification",
author = "Cho, {Sung Ho} and Cho, {Sung Man} and Bae, {Ki Yoon} and Kim, {Byung Hyuk} and Son, {Byung Dae} and Wooyoung Yoon",
year = "2018",
month = "1",
day = "1",
doi = "10.1007/s10800-018-1262-7",
language = "English",
journal = "Journal of Applied Electrochemistry",
issn = "0021-891X",
publisher = "Springer Netherlands",

}

TY - JOUR

T1 - Enhancing the electrochemical performance of lithium sulfur batteries using cetyl trimethylammonium bromide coated separator

AU - Cho, Sung Ho

AU - Cho, Sung Man

AU - Bae, Ki Yoon

AU - Kim, Byung Hyuk

AU - Son, Byung Dae

AU - Yoon, Wooyoung

PY - 2018/1/1

Y1 - 2018/1/1

N2 - In this study, cetyltrimethylammonium bromide (CTAB)-modified separator is developed by using a simple and facile method for lithium–sulfur (Li–S) batteries. CTAB is coated on only one side of separator using a doctor blade. The coated CTAB on the separator improves wettability between separator and electrolyte and ionic conductivity of separator. In addition, CTAB also inhibits the migration of dissolved polysulfides to the anode side. These phenomena improve the electrochemical properties of Li–S batteries using CTAB-coated separators. Cells using the CTAB-coated separator exhibit an initial capacity of 1136 mAh g−1 at 0.2 C-rate. In addition, they can maintain a higher capacity (765 mAh g−1) and capacity retention rate (67.3%) after 150 cycles as compared to pristine Li–S batteries (549 mAh g−1 and 48.5%, respectively). These results indicate that the CTAB-coated separator can enhance the performance of Li–S batteries. Graphical abstract: [Figure not available: see fulltext.].

AB - In this study, cetyltrimethylammonium bromide (CTAB)-modified separator is developed by using a simple and facile method for lithium–sulfur (Li–S) batteries. CTAB is coated on only one side of separator using a doctor blade. The coated CTAB on the separator improves wettability between separator and electrolyte and ionic conductivity of separator. In addition, CTAB also inhibits the migration of dissolved polysulfides to the anode side. These phenomena improve the electrochemical properties of Li–S batteries using CTAB-coated separators. Cells using the CTAB-coated separator exhibit an initial capacity of 1136 mAh g−1 at 0.2 C-rate. In addition, they can maintain a higher capacity (765 mAh g−1) and capacity retention rate (67.3%) after 150 cycles as compared to pristine Li–S batteries (549 mAh g−1 and 48.5%, respectively). These results indicate that the CTAB-coated separator can enhance the performance of Li–S batteries. Graphical abstract: [Figure not available: see fulltext.].

KW - Cetyltrimethylammonium bromide

KW - CTAB-coated separator

KW - Li–S battery

KW - Separator modification

UR - http://www.scopus.com/inward/record.url?scp=85055554724&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85055554724&partnerID=8YFLogxK

U2 - 10.1007/s10800-018-1262-7

DO - 10.1007/s10800-018-1262-7

M3 - Article

JO - Journal of Applied Electrochemistry

JF - Journal of Applied Electrochemistry

SN - 0021-891X

ER -