Effects of polydopamine modification on self-grown CuO cube anodes in lithium-ion batteries

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• 作者：LiHua Hao ; LiQiong Wu ; ZhiQi Jia ; YongXiang Zhao…
• 关键词：lithium anode materials ; copper oxides ; polydopamine modification ; specific capacity ; in ; situ polymerization
• 刊名：SCIENCE CHINA Technological Sciences
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：59
• 期：4
• 页码：667-672
• 全文大小：1,536 KB
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• 作者单位：LiHua Hao (1)
  LiQiong Wu (2)
  ZhiQi Jia (1)
  YongXiang Zhao (1)
  XinHeng Li (2)
  
  1. College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030000, China
  2. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Lanzhou, 730000, China
  
• 刊物类别：Engineering
• 刊物主题：Chinese Library of Science
  Engineering, general
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1900

文摘

We report the synthesis of CuO cubes with well-defined size and shape by thermal treatments of Cu₂O cubes. Polydopamine (PDA) is introduced to modify the CuO cubes by the in-situ polymerization of the dopamine precursor. The initial specific capacity of the lithium-ion batteries using the CuO cubes as anodes increases about 10 times at a 0.5 C rate as a result of the modification of PDA. The overall specific capacity for 100 cycles also increases effectively due to the introduction of PDA. So PDA as surface modifying agent significantly improves the electrochemical performance of the CuO anodes.