TY - JOUR
T1 - A Free-Standing Sulfur/Nitrogen-Doped Carbon Nanotube Electrode for High-Performance Lithium/Sulfur Batteries
AU - Zhao, Yan
AU - Yin, Fuxing
AU - Zhang, Yongguang
AU - Zhang, Chengwei
AU - Mentbayeva, Almagul
AU - Umirov, Nurzhan
AU - Xie, Hongxian
AU - Bakenov, Zhumabay
N1 - Funding Information:
This research was supported by the Technology Commercialization Project of the World Bank and the Government of Kazakhstan (group 157) and partially by the grant from the Ministry of Education and Science of Kazakhstan “High energy density polymer lithium-sulfur battery for renewable energy, electric transport and electronics” (the 2015–2017 call). The authors are grateful for the financial support by the National Natural Science Foundation of China (Grant No. 21406052) and financial support by Program for the Outstanding Young Talents of Hebei Province (Grant No. BJ2014010). H. Xie is grateful for the financial support by the Youth Foundation of Hebei Educational Committee (Grant No. QN2014094).
Publisher Copyright:
© 2015, Zhao et al.
PY - 2015/12/1
Y1 - 2015/12/1
N2 - A free-standing sulfur/nitrogen-doped carbon nanotube (S/N-CNT) composite prepared via a simple solution method was first studied as a cathode material for lithium/sulfur batteries. By taking advantage of the self-weaving behavior of N-CNT, binders and current collectors are rendered unnecessary in the cathode, thereby simplifying its manufacturing and increasing the sulfur weight ratio in the electrode. Transmission electronic microscopy showed the formation of a highly developed core-shell tubular structure consisting of S/N-CNT composite with uniform sulfur coating on the surface of N-CNT. As a core in the composite, the N-CNT with N functionalization provides a highly conductive and mechanically flexible framework, enhancing the electronic conductivity and consequently the rate capability of the material.
AB - A free-standing sulfur/nitrogen-doped carbon nanotube (S/N-CNT) composite prepared via a simple solution method was first studied as a cathode material for lithium/sulfur batteries. By taking advantage of the self-weaving behavior of N-CNT, binders and current collectors are rendered unnecessary in the cathode, thereby simplifying its manufacturing and increasing the sulfur weight ratio in the electrode. Transmission electronic microscopy showed the formation of a highly developed core-shell tubular structure consisting of S/N-CNT composite with uniform sulfur coating on the surface of N-CNT. As a core in the composite, the N-CNT with N functionalization provides a highly conductive and mechanically flexible framework, enhancing the electronic conductivity and consequently the rate capability of the material.
KW - Free-standing electrode
KW - Lithium/sulfur battery
KW - Sulfur/nitrogen-doped carbon nanotube composite cathode
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U2 - 10.1186/s11671-015-1152-4
DO - 10.1186/s11671-015-1152-4
M3 - Article
AN - SCOPUS:84947750082
VL - 10
SP - 1
EP - 6
JO - Nanoscale Research Letters
JF - Nanoscale Research Letters
SN - 1931-7573
IS - 1
M1 - 450
ER -