• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Multi-walled carbon nanotubes composited with nanomagnetite for anodes in lithium ion batteries
【24h】

Multi-walled carbon nanotubes composited with nanomagnetite for anodes in lithium ion batteries

机译：用纳米磁石组成的多壁碳纳米管用于锂离子电池中的阳极

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work, multi-walled carbon nanotube (MWNT) nanocomposites with homogenously anchored nanomagnetite of 10-20 nm prepared by a hydrothermal-annealing method have been demonstrated to serve as anode materials for lithium ion batteries (LIBs) with a specific capacity of 829 mA h g(-1) after 50 cycles at a current density of 100 mA g(-1) and a reversible capacity of 686 mA h g(-1) at a current density of 200 mA g(-1) for the nanocomposites with a weight ratio of 1 : 1, much larger than the specific capacity of 230 mA h g(-1) after 50 cycles at a current density of 100 mA g(-1) and a reversible capacity of 195 mA h g(-1) at a current density of 200 mA g(-1) for the MWNTs. The MWNTs in the nanocomposites could efficiently buffer the strain of volume change during lithiation/delithiation and greatly improve the electrical conductivity of the electrodes. The superior electrochemical performances of the Fe3O4/MWNTs were found to originate from the unique conductive network of the MWNTs in the nanocomposites as well as the high capacity from the nanomagnetite.
机译：在这项工作中，已经证明，通过热回火方法制备的10-20nm的均匀锚固纳米磁铁（MWNT）纳米复合物的多壁碳纳米管（MWNT）纳米复合材料用作锂离子电池（LIBS）的阳极材料，其特定容量为829 Ma Hg（-1）在50次循环以100mA g（-1）的循环和686mA Hg（-1）的可逆容量，其电流密度为纳米复合材料重量比为1：1，比在电流密度为100 mA g（-1）的50次循环后的230 mA hg（-1）的比容量大于50 mA hg（-1）的比率，并且在a的可逆容量为195 ma hg（-1）用于MWNT的电流密度为200 mA g（-1）。纳米复合材料中的MWNT可以有效地缓冲锂化/脱锂期间体积变化的应变，并大大提高电极的导电性。发现Fe3O4 / mWnts的卓越电化学性能源自纳米复合材料中的MWNT的独特导电网络以及纳米磁石的高容量。

著录项

  • 来源
    《RSC Advances》 |2015年第10期|共8页
  • 作者

    Li Xiaoyu; Gu Hongbo; Liu Jiurong; Wei Huige; Qiu Song; Fu Ya; Lv Hailong; Lu Guixia; Wang Yiran; Guo Zhanhu;

  • 作者单位

    Shandong Univ Minist Educ Key Lab Liquid Solid Struct Evolut &

    Proc Mat Jinan 250061 Shandong Peoples R China;

    Tongji Univ Dept Chem Shanghai 200092 Peoples R China;

    Shandong Univ Minist Educ Key Lab Liquid Solid Struct Evolut &

    Proc Mat Jinan 250061 Shandong Peoples R China;

    Lamar Univ Dan F Smith Dept Chem Engn ICL Beaumont TX 77710 USA;

    Shandong Univ Minist Educ Key Lab Liquid Solid Struct Evolut &

    Proc Mat Jinan 250061 Shandong Peoples R China;

    Shandong Univ Minist Educ Key Lab Liquid Solid Struct Evolut &

    Proc Mat Jinan 250061 Shandong Peoples R China;

    Shandong Univ Minist Educ Key Lab Liquid Solid Struct Evolut &

    Proc Mat Jinan 250061 Shandong Peoples R China;

    Shandong Univ Minist Educ Key Lab Liquid Solid Struct Evolut &

    Proc Mat Jinan 250061 Shandong Peoples R China;

    Lamar Univ Dan F Smith Dept Chem Engn ICL Beaumont TX 77710 USA;

    Lamar Univ Dan F Smith Dept Chem Engn ICL Beaumont TX 77710 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号