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A Simple Way of Pre-doping Lithium Ion into Carbon Negative Electrode for Lithium Ion Capacitor

机译：一种将锂离子预掺杂到锂离子电容器碳负电极中的简单方法

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摘要

A simple strategy of pre-doping lithium ion into carbon negative electrode for lithium ion capacitor was introduced. In this strategy, a kind of Li-containing compound was added directly into the positive electrode of the lithium ion capacitor (LIC). When the lithium ion capacitor was charging first time, the Li-containing compound releases Li+, and the pre-doping of lithium ion into the negative electrode was performed. Here, we developed a lithium ion capacitor using Meso-carbon microbeads (MCMB)/activated carbon (AC) as the negative and positive electrode materials, respectively and use the lithium iron phosphate (LiFePO_4) as the Li-containing compound, which supply the Li+ ions for pre-doping. The results demonstrated that, by adding 20 percent of LiFePO_4 into the positive electrode, the efficiency of the capacitor increases from lower than 60% up to higher than 90%, and the capacitor shows good capacitance characteristics and high capacity.
机译：介绍了一种将锂离子预掺杂到锂离子电容器碳负极中的简单策略。在这种策略中，将一种含锂化合物直接添加到锂离子电容器（LIC）的正极中。首次对锂离子电容器进行充电时，含Li的化合物释放Li +，将锂离子预掺杂到负极中。在这里，我们开发了分别使用中碳微珠（MCMB）/活性炭（AC）作为负电极和正电极材料的锂离子电容器，并使用了磷酸铁锂（LiFePO_4）作为含锂化合物，该锂离子电容器提供了Li +离子用于预掺杂。结果表明，通过向正极中添加20％的LiFePO_4，电容器的效率从低于60％上升到高于90％，并且电容器具有良好的电容特性和高容量。

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  • 来源
    《Energy and environment materials》|2009年|p.142-149|共8页
  • 会议地点 Suzhou(CN)
  • 作者

    Feng Wu; Huaquan Lu; Yuefeng Su; Shi Chen; Yibiao Guan;

  • 作者单位

    School of Chemical Engineering Environment, Beijing Institute of Technology, Beijing 100081, China,National Development Center of Hi-Tech Green Materials, Beijing 100081, China;

    School of Chemical Engineering Environment, Beijing Institute of Technology, Beijing 100081, China;

    School of Chemical Engineering Environment, Beijing Institute of Technology, Beijing 100081, China,National Development Center of Hi-Tech Green Materials, Beijing 100081, China;

    School of Chemical Engineering Environment, Beijing Institute of Technology, Beijing 100081, China,National Development Center of Hi-Tech Green Materials, Beijing 100081, China;

    School of Chemical Engineering Environment, Beijing Institute of Technology, Beijing 100081, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料一般性问题;
  • 关键词

    lithium-ion capacitors; meso-carbon microbeads; lifepo_4; activated carbon.;

    机译：锂离子电容器；中碳微珠lifepo_4;活性炭。;

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