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; Woo Young Yoon

doi:10.1007/s10800-018-1262-7

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, Woo Young Yoon

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

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 language	English
Pages (from-to)	111-118
Number of pages	8
Journal	Journal of Applied Electrochemistry
Volume	49
Issue number	2
DOIs	https://doi.org/10.1007/s10800-018-1262-7
Publication status	Published - 2019 Feb 15

Bibliographical note

Funding Information:
This study was supported by grants from the National Research Foundation of Korea (NRF), the Korean government (MEST) (2016R1A2B3009481). SEM and EDS examination were performed at the Korea Basic Science Institute, Seoul Center.

Funding Information:
Acknowledgements This study was supported by grants from the National Research Foundation of Korea (NRF), the Korean government (MEST) (2016R1A2B3009481). SEM and EDS examination were performed at the Korea Basic Science Institute, Seoul Center.

Publisher Copyright:
© 2018, Springer Nature B.V.

Keywords

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

ASJC Scopus subject areas

Chemical Engineering(all)
Electrochemistry
Materials Chemistry

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10.1007/s10800-018-1262-7

Cite this

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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.].",

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note = "Funding Information: This study was supported by grants from the National Research Foundation of Korea (NRF), the Korean government (MEST) (2016R1A2B3009481). SEM and EDS examination were performed at the Korea Basic Science Institute, Seoul Center. Funding Information: Acknowledgements This study was supported by grants from the National Research Foundation of Korea (NRF), the Korean government (MEST) (2016R1A2B3009481). SEM and EDS examination were performed at the Korea Basic Science Institute, Seoul Center. Publisher Copyright: {\textcopyright} 2018, Springer Nature B.V.",

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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.].

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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