Zhao, YanYin, FuxingZhang, YongguangZhang, ChengweiMentbayeva, AlmagulUmirov, NurzhanXie, HongxianBakenov, Zhumabay2015-12-022015-12-022015-11-19Zhao Yan., Yin Fuxing., Zhang Yongguang., Zhang Chengwei., Mentbayeva Almagul., Umirov Nurzhan., Xie Hongxian., Bakenov Zhumabay., A free-standing sulfur/Nitrogen-doped carbon nanotube electrode for high- performance lithium/sulfur batteries, 2015 November 19, Nanoscale Research Letters, DOI 10.1186/s11671-015-1152-4http://nur.nu.edu.kz/handle/123456789/845A 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.lithium/sulfur batterysulfur/nitrogen-doped carbon nanotube composite cathodefree-standing electrodeArticle