An activated microporous carbon prepared from phenol-melamine-formaldehyde resin for lithium ion battery anode |
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Authors: | Yinhai Zhu Xiaoxia Xiang Enhui Liu Yuhu Wu Hui Xie Zhilian Wu Yingying Tian |
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Affiliation: | 1. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China;2. Laboratory of Fiber Modification and Functional Fiber, College of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China;3. Collaboration Innovation Center of Chemical Science and Engineering, Tianjin 300072, PR China |
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Abstract: | Microporous carbon anode materials were prepared from phenol-melamine-formaldehyde resin by ZnCl2 and KOH activation. The physicochemical properties of the obtained carbon materials were characterized by scanning electron microscope, X-ray diffraction, Brunauer–Emmett–Teller, and elemental analysis. The electrochemical properties of the microporous carbon as anode materials in lithium ion secondary batteries were evaluated. At a current density of 100 mA g?1, the carbon without activation shows a first discharge capacity of 515 mAh g?1. After activation, the capacity improved obviously. The first discharge capacity of the carbon prepared by ZnCl2 and KOH activation was 1010 and 2085 mAh g?1, respectively. The reversible capacity of the carbon prepared by KOH activation was still as high as 717 mAh g?1 after 20 cycles, which was much better than that activated by ZnCl2. These results demonstrated that it may be a promising candidate as an anode material for lithium ion secondary batteries. |
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