Effect of mesoporous carbon microtube prepared by carbonizing the poplar catkin on sulfur cathode performance in Li/S batteries

Yongguang Zhang; Yan Zhao; Aishuak Konarov; Zhi Li; P. Chen

doi:10.1016/j.jallcom.2014.09.055

Effect of mesoporous carbon microtube prepared by carbonizing the poplar catkin on sulfur cathode performance in Li/S batteries

Yongguang Zhang
, Yan Zhao
, Aishuak Konarov
, Zhi Li
, P. Chen

Department of Chemical and Materials Engineering

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

76 Citations (Scopus)

Abstract

A carbon microtube (CMT) was synthesized by carbonizing the poplar catkin and composited with sulfur, serving as a cathode for lithium/sulfur batteries. Scanning electron microscopy and energy dispersive spectroscopy mapping showed the formation of a tubular structure with uniform sulfur coating on the surface of CMTs. The CMT with a mesoporous surface is beneficial to both trapping soluble polysulfide intermediates and rendering the electrical conductivity of the prepared electrode. The resulting S/CMT composite cathode can deliver an 810 mAh g^-1reversible specific discharge capacity after 100 cycles at 0.1 C, and 585 mAh g^-1at 1 C.

Original language	English
Pages (from-to)	298-302
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	619
DOIs	https://doi.org/10.1016/j.jallcom.2014.09.055
Publication status	Published - Jan 15 2015

Funding

This research was financially supported by Positec, Natural Sciences and Engineering Research Council of Canada (NSERC), Canadian Foundation for Innovation (CFI) and the Canada Research Chairs (CRC). Yongguang Zhang and Yan Zhao are grateful of financial support by the National Natural Science Foundation of China (Grant No. 21406052 ).

Keywords

Carbon microtube
Lithium/sulfur battery
Poplar catkin
Sulfur cathode
Sulfur/carbon microtube composite

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2014.09.055

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title = "Effect of mesoporous carbon microtube prepared by carbonizing the poplar catkin on sulfur cathode performance in Li/S batteries",

abstract = "A carbon microtube (CMT) was synthesized by carbonizing the poplar catkin and composited with sulfur, serving as a cathode for lithium/sulfur batteries. Scanning electron microscopy and energy dispersive spectroscopy mapping showed the formation of a tubular structure with uniform sulfur coating on the surface of CMTs. The CMT with a mesoporous surface is beneficial to both trapping soluble polysulfide intermediates and rendering the electrical conductivity of the prepared electrode. The resulting S/CMT composite cathode can deliver an 810 mAh g-1reversible specific discharge capacity after 100 cycles at 0.1 C, and 585 mAh g-1at 1 C.",

keywords = "Carbon microtube, Lithium/sulfur battery, Poplar catkin, Sulfur cathode, Sulfur/carbon microtube composite",

author = "Yongguang Zhang and Yan Zhao and Aishuak Konarov and Zhi Li and P. Chen",

note = "Funding Information: This research was financially supported by Positec, Natural Sciences and Engineering Research Council of Canada (NSERC), Canadian Foundation for Innovation (CFI) and the Canada Research Chairs (CRC). Yongguang Zhang and Yan Zhao are grateful of financial support by the National Natural Science Foundation of China (Grant No. 21406052 ). Publisher Copyright: {\textcopyright} 2014 Elsevier B.V. All rights reserved.",

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doi = "10.1016/j.jallcom.2014.09.055",

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AU - Zhang, Yongguang

AU - Zhao, Yan

AU - Konarov, Aishuak

AU - Li, Zhi

AU - Chen, P.

N1 - Funding Information: This research was financially supported by Positec, Natural Sciences and Engineering Research Council of Canada (NSERC), Canadian Foundation for Innovation (CFI) and the Canada Research Chairs (CRC). Yongguang Zhang and Yan Zhao are grateful of financial support by the National Natural Science Foundation of China (Grant No. 21406052 ). Publisher Copyright: © 2014 Elsevier B.V. All rights reserved.

PY - 2015/1/15

Y1 - 2015/1/15

N2 - A carbon microtube (CMT) was synthesized by carbonizing the poplar catkin and composited with sulfur, serving as a cathode for lithium/sulfur batteries. Scanning electron microscopy and energy dispersive spectroscopy mapping showed the formation of a tubular structure with uniform sulfur coating on the surface of CMTs. The CMT with a mesoporous surface is beneficial to both trapping soluble polysulfide intermediates and rendering the electrical conductivity of the prepared electrode. The resulting S/CMT composite cathode can deliver an 810 mAh g-1reversible specific discharge capacity after 100 cycles at 0.1 C, and 585 mAh g-1at 1 C.

AB - A carbon microtube (CMT) was synthesized by carbonizing the poplar catkin and composited with sulfur, serving as a cathode for lithium/sulfur batteries. Scanning electron microscopy and energy dispersive spectroscopy mapping showed the formation of a tubular structure with uniform sulfur coating on the surface of CMTs. The CMT with a mesoporous surface is beneficial to both trapping soluble polysulfide intermediates and rendering the electrical conductivity of the prepared electrode. The resulting S/CMT composite cathode can deliver an 810 mAh g-1reversible specific discharge capacity after 100 cycles at 0.1 C, and 585 mAh g-1at 1 C.

KW - Carbon microtube

KW - Lithium/sulfur battery

KW - Poplar catkin

KW - Sulfur cathode

KW - Sulfur/carbon microtube composite

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Effect of mesoporous carbon microtube prepared by carbonizing the poplar catkin on sulfur cathode performance in Li/S batteries

Abstract

Funding

Keywords

ASJC Scopus subject areas

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