One-pot synthesis of NiFe₂O₄/C composite as an anode material for lithium-ion batteries

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• 作者：Yu Ding ; Yifu Yang ; Huixia Shao
• 关键词：Nickel ferrite composite ; Anode ; Polymer pyrolysis method ; Lithium-ion batteries
• 刊名：Journal of Power Sources
• 出版年：2013
• 出版时间：15 December, 2013
• 年：2013
• 卷：244
• 期：Complete
• 页码：610-613
• 全文大小：1181 K

文摘

A simple polymer pyrolysis method for the synthesis of hierarchically nanostructured NiFe₂O₄/C composites is reported in this study. The characteristics of the material are examined by thermogravimetry, X-ray diffraction and scanning electron microscopy. The electrochemical performances of the nanomaterial composites are investigated in detail. The results show that the obtained composite retains a high specific capacity of 780?mAh?g^?1 even after 40 cycles at a current density of 1/8C, and the coulombic efficiency approaches 99 % . The reversible specific capacity can still be as high as 200?mAh?g^?1, at high rate of 4C. The nanostructured NiFe₂O₄/C composite is a potential competitive anode for lithium-ion batteries.