Structure and electrochemical performance of Fe3O4/graphene nanocomposite as anode material for lithium-ion batteries |
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| Authors: | Gang Wang Ting Liu Xiaoling Xie Zhaoyu Ren Jinbo Bai Hui Wang |
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| Affiliation: | 1. Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education), College of Chemistry & Materials Science, Northwest University, Xi’an 710069, PR China;2. National Key Laboratory of Photoelectric Technology and Functional Materials (Culture Base), National Photoelectric Technology and Functional Materials & Application International Cooperation Base, Institute of Photonics & Photon-Technology, Northwest University, Xi’an 710069, PR China;3. Lab. MSS/MAT, CNRS UMR 8579, Ecole Centrale Paris, 92295 Chatenay Malabry, France |
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| Abstract: | Using hydrothermal method, Fe3O4/graphene nanocomposite is prepared by synthesizing Fe3O4 particles in graphene. The synthesized Fe3O4 is nano-sized sphere particles (100–200 nm) and uniformly distributed on the planes of graphene. Fe3O4/graphene nanocomposite as anode material for lithium ion batteries shows high reversible specific capacity of 771 mAh g−1 at 50th cycle and good rate capability. The excellent electrochemical performance of the nanocomposite can be attributed to the high surface area and good electronic conductivity of graphene. Due to the high surface area, graphene can prevent Fe3O4 nanoparticles from aggregating and provide enough space to buffer the volume change during the Li insertion/extraction processes in Fe3O4 nanoparticles. |
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| Keywords: | Composite materials Chemical synthesis Electrochemical techniques Electrochemical properties |
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