Enhanced performance of lithium sulfur battery with polypyrrole warped mesoporous carbon/sulfur composite

Guoqiang Ma; Zhaoyin Wen; Jun Jin; Yan Lu; Kun Rui; Xiangwei Wu; Meifen Wu; Jingchao Zhang

doi:10.1016/j.jpowsour.2013.12.085

Enhanced performance of lithium sulfur battery with polypyrrole warped mesoporous carbon/sulfur composite

Guoqiang Ma, Zhaoyin Wen, Jun Jin, Yan Lu, Kun Rui, Xiangwei Wu, Meifen Wu, Jingchao Zhang

CAS - Shanghai Institute of Ceramics

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

145 Scopus citations

Abstract

A sulfur cathode is designed with three-dimensional (3D) cubic mesoporous carbon CMK-8 as the matrix of sulfur, and polypyrrole (PPY) as the wrapping layer. CMK-8 provides perfect 3D conductive network. Furthermore, PPY is coated onto the surface of CMK-8/sulfur (CMK-8/S) composite to inhibit the migration of lithium polysulfide and offer better lithium ion conductive channels. The microstructure and electrochemical performance of the PPY@CMK-8/sulfur (PPY@CMK-8/S) cathode are investigated systematically. The results show that PPY layer with about 50 nm thickness is coated uniformly on the surface of CMK-8/S. The Li-S battery with PPY@CMK-8/S as cathode material presents a discharge capacity of 937.8 mAh g^-1 at 20 cycles and is stabilized at about 860 mAh g^-1 after 100 cycles at 0.2C.

Original language	English
Pages (from-to)	353-359
Number of pages	7
Journal	Journal of Power Sources
Volume	254
DOIs	https://doi.org/10.1016/j.jpowsour.2013.12.085
State	Published - 15 May 2014
Externally published	Yes

Keywords

Conductive polymer
Cubic mesoporous carbon
Cycling performance
Lithium sulfur battery
Sulfur cathode

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2013.12.085

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@article{040479bbd4494deb873d214d8d35133f,

title = "Enhanced performance of lithium sulfur battery with polypyrrole warped mesoporous carbon/sulfur composite",

abstract = "A sulfur cathode is designed with three-dimensional (3D) cubic mesoporous carbon CMK-8 as the matrix of sulfur, and polypyrrole (PPY) as the wrapping layer. CMK-8 provides perfect 3D conductive network. Furthermore, PPY is coated onto the surface of CMK-8/sulfur (CMK-8/S) composite to inhibit the migration of lithium polysulfide and offer better lithium ion conductive channels. The microstructure and electrochemical performance of the PPY@CMK-8/sulfur (PPY@CMK-8/S) cathode are investigated systematically. The results show that PPY layer with about 50 nm thickness is coated uniformly on the surface of CMK-8/S. The Li-S battery with PPY@CMK-8/S as cathode material presents a discharge capacity of 937.8 mAh g-1 at 20 cycles and is stabilized at about 860 mAh g-1 after 100 cycles at 0.2C.",

keywords = "Conductive polymer, Cubic mesoporous carbon, Cycling performance, Lithium sulfur battery, Sulfur cathode",

author = "Guoqiang Ma and Zhaoyin Wen and Jun Jin and Yan Lu and Kun Rui and Xiangwei Wu and Meifen Wu and Jingchao Zhang",

year = "2014",

month = may,

day = "15",

doi = "10.1016/j.jpowsour.2013.12.085",

language = "英语",

volume = "254",

pages = "353--359",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Enhanced performance of lithium sulfur battery with polypyrrole warped mesoporous carbon/sulfur composite

AU - Ma, Guoqiang

AU - Wen, Zhaoyin

AU - Jin, Jun

AU - Lu, Yan

AU - Rui, Kun

AU - Wu, Xiangwei

AU - Wu, Meifen

AU - Zhang, Jingchao

PY - 2014/5/15

Y1 - 2014/5/15

N2 - A sulfur cathode is designed with three-dimensional (3D) cubic mesoporous carbon CMK-8 as the matrix of sulfur, and polypyrrole (PPY) as the wrapping layer. CMK-8 provides perfect 3D conductive network. Furthermore, PPY is coated onto the surface of CMK-8/sulfur (CMK-8/S) composite to inhibit the migration of lithium polysulfide and offer better lithium ion conductive channels. The microstructure and electrochemical performance of the PPY@CMK-8/sulfur (PPY@CMK-8/S) cathode are investigated systematically. The results show that PPY layer with about 50 nm thickness is coated uniformly on the surface of CMK-8/S. The Li-S battery with PPY@CMK-8/S as cathode material presents a discharge capacity of 937.8 mAh g-1 at 20 cycles and is stabilized at about 860 mAh g-1 after 100 cycles at 0.2C.

AB - A sulfur cathode is designed with three-dimensional (3D) cubic mesoporous carbon CMK-8 as the matrix of sulfur, and polypyrrole (PPY) as the wrapping layer. CMK-8 provides perfect 3D conductive network. Furthermore, PPY is coated onto the surface of CMK-8/sulfur (CMK-8/S) composite to inhibit the migration of lithium polysulfide and offer better lithium ion conductive channels. The microstructure and electrochemical performance of the PPY@CMK-8/sulfur (PPY@CMK-8/S) cathode are investigated systematically. The results show that PPY layer with about 50 nm thickness is coated uniformly on the surface of CMK-8/S. The Li-S battery with PPY@CMK-8/S as cathode material presents a discharge capacity of 937.8 mAh g-1 at 20 cycles and is stabilized at about 860 mAh g-1 after 100 cycles at 0.2C.

KW - Conductive polymer

KW - Cubic mesoporous carbon

KW - Cycling performance

KW - Lithium sulfur battery

KW - Sulfur cathode

UR - http://www.scopus.com/inward/record.url?scp=84894040001&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2013.12.085

DO - 10.1016/j.jpowsour.2013.12.085

M3 - 文章

AN - SCOPUS:84894040001

SN - 0378-7753

VL - 254

SP - 353

EP - 359

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Enhanced performance of lithium sulfur battery with polypyrrole warped mesoporous carbon/sulfur composite

Abstract

Keywords

UN SDGs

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