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首页> 外文期刊>RSC Advances >The excellent cycling stability and superior rate capability of polypyrrole as the anode material for rechargeable sodium ion batteries
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The excellent cycling stability and superior rate capability of polypyrrole as the anode material for rechargeable sodium ion batteries

机译：聚吡咯作为可充电钠离子电池的阳极材料的优异循环稳定性和优异速率能力

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摘要

Polypyrrole with a submicrostructure has been successfully synthesized via a simple chemical oxidative polymerization. As characterized by X-ray diffraction, Fourier transform infrared (FTIR) spectroscopy, and scanning electron microscopy (SEM), the submicron polypyrrole shows a fluffy structure comprised chains composed of submicron particles. The submicron polypyrrole shows excellent electrochemical performance as the anode material for sodium ion batteries, which is much better than bulk polypyrrole. It displays a stable discharge capacity of 183 mA h g(-1) at 400 mA g(-1) after 100 cycles, whereas only 34.8 mA h g(-1) for bulk polypyrrole under the same conditions. Furthermore, the submicron polypyrrole shows an extremely stable storage capacity during long term cycling even at super high rates. Except the irreversible capacity for the first cycle, the specific capacity remains stable and still maintains at 84 mA h g(-1) after 500 cycles at 14 400 mA g(-1). The remarkable electrochemical performance greatly suggests that the submicron polypyrrole is an advanced anode material for sodium ion batteries.
机译：通过简单的化学氧化聚合成功地合成了含有亚皮质结构的萘吡咯。如X射线衍射，傅里叶变换红外（FTIR）光谱和扫描电子显微镜（SEM），亚微吡咯表示蓬松的结构，包括由亚微米粒子组成的链。亚微吡咯型显示出优异的电化学性能作为钠离子电池的阳极材料，这比散装聚吡咯更好。在100次循环后，它在400mA g（-1）下显示183mA H（-1）的稳定放电容量，而在相同条件下仅为体滤网仅为34.8 mA H（-1）。此外，亚微米滤土表明，即使在超高速率下，长期循环期间储存能力极其稳定。除了第一个循环的不可逆容量外，特定容量保持稳定，在14 400mA g（-1）的500次循环后仍保持在84mA H g（-1）。显着的电化学性能众所周知，亚微吡咯是钠离子电池的先进阳极材料。

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  • 来源
    《RSC Advances》 |2016年第3期|共7页
  • 作者

    Chen Xiaoying; Liu Li; Yan Zichao; Huang Zhifeng; Zhou Qian; Guo Guoxiong; Wang Xianyou;

  • 作者单位

    Xiangtan Univ Sch Chem Minist Educ Key Lab Environm Friendly Chem &

    Applicat Xiangtan 411105 Hunan Peoples R China;

    Xiangtan Univ Sch Chem Minist Educ Key Lab Environm Friendly Chem &

    Applicat Xiangtan 411105 Hunan Peoples R China;

    Xiangtan Univ Sch Chem Minist Educ Key Lab Environm Friendly Chem &

    Applicat Xiangtan 411105 Hunan Peoples R China;

    Xiangtan Univ Sch Chem Minist Educ Key Lab Environm Friendly Chem &

    Applicat Xiangtan 411105 Hunan Peoples R China;

    Xiangtan Univ Sch Chem Minist Educ Key Lab Environm Friendly Chem &

    Applicat Xiangtan 411105 Hunan Peoples R China;

    Xiangtan Univ Sch Chem Minist Educ Key Lab Environm Friendly Chem &

    Applicat Xiangtan 411105 Hunan Peoples R China;

    Xiangtan Univ Sch Chem Minist Educ Key Lab Environm Friendly Chem &

    Applicat Xiangtan 411105 Hunan Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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