Hydroquinone Resin Induced Carbon Nanotubes on Ni Foam As Binder-Free Cathode for Li–O2 Batteries

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• 作者：Qian-Cheng Zhu ; Fei-Hu Du ; Shu-Mao Xu ; Zong-Kai Wang ; Kai-Xue Wang ; Jie-Sheng Chen
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：February 17, 2016
• 年：2016
• 卷：8
• 期：6
• 页码：3868-3873
• 全文大小：413K
• ISSN：1944-8252

文摘

In this work, hydroquinone resin was used to grow carbon nanotubes directly on Ni foam. The composites were obtained via a simple carbonization method, which avoids using the explosive gaseous carbon precursors that are usually applied in the chemical vapor deposition method. When evaluated as cathode for Li–O₂ batteries, the binder-free structure showed enhanced ORR/OER activities, thus giving a high rate capability (12690 mAh g^–1 at 200 mA g^–1 and 3999 mAh g^–1 at 2000 mA g^–1) and outstanding long-term cycling stability (capacity limited 2000 mAh g^–1, 110 cycles at 200 mA g^–1). The excellent battery performance provides new insights into designing a low-cost and high-efficiency cathode for Li–O₂ batteries.