Porous CoC₂O₄ Nanorods as High Performance Anode Material for Lithium Ion Batteries

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• 作者：Yaohui Zhang ; Zhenxiao Lu ; Meiqing Guo ; Zhongchao Bai ; Bin Tang
• 刊名：JOM Journal of the Minerals, Metals and Materials Society
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：68
• 期：11
• 页码：2952-2957
• 全文大小：1,437 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Metallic Materials
  Nanotechnology
  Crystallography
  
• 出版者：Springer Boston
• ISSN：1543-1851
• 卷排序：68

文摘

A porous structure has great advantages in electrodes for lithium ion batteries (LIBs), because it can not only offer a large surface area for the electrode to contact the electrolyte, but can also relieve the mechanical stress derived from Li+ insertion/extraction. In this work, porous CoC₂O₄ nanorods were synthesized through a facile metathesis reaction using H₂C₂O₄·2H₂O and Co(CH₃COO)₂·4H₂O as raw materials. The porous CoC₂O₄ nanorods show excellent electrochemical properties including high specific capacity, long cycling stability and good rate capability. After 100 cycles, the electrode maintained a capacity of 1230 mAh g−1 at a current density of 500 mA g−1. Even at a high current density of 4000 mA g−1, the sample still delivered a capacity of 385 mAh g−1. These results indicate that porous CoC₂O₄ nanorods are an exceptional anode material for high-performance LIBs.