Hollow Carbon-Nanotube/Carbon-Nanofiber Hybrid Anodes for Li-Ion Batteries

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• 作者：Yuming Chen ; Xiaoyan Li ; Kyusung Park ; Jie Song ; Jianhe Hong ; Limin Zhou ; Yiu-Wing Mai ; Haitao Huang ; John B. Goodenough
• 刊名：Journal of the American Chemical Society
• 出版年：2013
• 出版时间：November 6, 2013
• 年：2013
• 卷：135
• 期：44
• 页码：16280-16283
• 全文大小：286K
• 年卷期：v.135,no.44(November 6, 2013)
• ISSN：1520-5126

文摘

By a novel in situ chemical vapor deposition, activated N-doped hollow carbon-nanotube/carbon-nanofiber composites are prepared having a superhigh specific Brunauer鈥揈mmett鈥揟eller (BET) surface area of 1840 m² g^鈥? and a total pore volume of 1.21 m³ g^鈥?. As an anode, this material has a reversible capacity of 1150 mAh g^鈥? at 0.1 A g^鈥? (0.27 C) after 70 cycles. At 8 A g^鈥? (21.5 C), a capacity of 320 mAh g^鈥? fades less than 20% after 3500 cycles, which makes it a superior anode material for a Li-ion battery .