Novel Hybrid Carbon Nanofiber/Highly Branched Graphene Nanosheet for Anode Materials in Lithium-Ion Batteries

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• 作者：Haejune Kim ; Xingkang Huang ; Xiaoru Guo ; Zhenhai Wen ; Shumao Cui ; Junhong Chen
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2014
• 出版时间：November 12, 2014
• 年：2014
• 卷：6
• 期：21
• 页码：18590-18596
• 全文大小：556K
• ISSN：1944-8252

文摘

The novel hybrid carbon nanofiber (CNF)/highly branched graphene nanosheet (HBGN) is synthesized via a simple two-step CVD method and its application as the anode material in a lithium-ion battery (LIB) is demonstrated. The CNFs offer a good electrical conductivity and a robust supporting structure, while the HBGNs provide increased Li storage sites including nanoporous cavities, large surface area, and edges of exposed graphene platelets. The hybrid material showed a reversible capacity of 300 mAh g^鈥? with excellent cycling stability. Our study provides a new avenue for design and synthesis of carbon鈥揷arbon hybrid materials for versatile applications.

Keywords:

carbon nanofiber; highly branched graphene nanosheet; carbon鈭抍arbon hybrid; Li-ion battery; plasma-enhanced chemical vapor deposition; graphene