TY - JOUR
T1 - Effect of mesoporous carbon microtube prepared by carbonizing the poplar catkin on sulfur cathode performance in Li/S batteries
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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U2 - 10.1016/j.jallcom.2014.09.055
DO - 10.1016/j.jallcom.2014.09.055
M3 - Article
AN - SCOPUS:84907585605
SN - 0925-8388
VL - 619
SP - 298
EP - 302
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -