标题
作者
作者:Hu, RZ (Hu, Renzong)[1 ]; Sun, W (Sun, Wei)[1 ]; Liu, H (Liu, Hui)[1 ]; Zeng, MQ (Zeng, Meiqin)[1 ]; Zhu, M (Zhu, Min)[1 ]
期刊信息
摘要
CNTs filled with amorphous-nanocrystalline SnO2, as a unique SnO2-based nanocomposite structure, were synthesized by a rapid vacuum absorption followed by calcination. The SnO2/CNT nanocomposite anodes had a much higher Li storage capacity than the pristine CNTs, as well as a markedly improved cyclic performance (430 mA h g(-1) after 300 cycles at 0.1 A g(-1)). These superior electrode properties resulted from the unique feature of the amorphous-nanocrystalline mixture of tin oxides stored in the CNT tubes of this nanocomposite, because this structure accommodated the stress and confined the volume change of Li+ insertion/desertion in Sn. Although the nanocomposites had a large initial irreversible capacity loss due to SEI formation, it could be dramatically reduced by prelithiation treatment of the nanocomposite electrode.
关键词
KeyWords Plus:STORAGE CAPACITY; NEGATIVE ELECTRODE; CARBON NANOTUBES; HOLLOW SPHERES; SNO2 NANOWIRE; PERFORMANCE; LITHIATION; OXIDE; TIN; NANOSTRUCTURES
作者信息
通讯作者地址:Zhu, M (通讯作者)
 | S China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510640, Guangdong, Peoples R China. |
地址:
| [ 1 ] S China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510640, Guangdong, Peoples R China |
电子邮件地址:memzhu@scut.edu.cn
出版商
类别分类
研究方向:Chemistry; Science & Technology - Other Topics; Materials Science; Physics
Web of Science 类别:Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied