• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >A New Salt-Baked Approach for Confining Selenium in Metal Complex-Derived Porous Carbon with Superior Lithium Storage Properties
【24h】

A New Salt-Baked Approach for Confining Selenium in Metal Complex-Derived Porous Carbon with Superior Lithium Storage Properties

机译：具有优异的锂存储性能的新的盐焗法将硒限制在金属络合物衍生的多孔碳中

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

For lithium-selenium batteries, commercial applications are hindered by the inferior electrical conductivity of selenium and the low utilization ratio of the active selenium. Here, we report a new baked-in-salt approach to enable Se to better infiltrate into metal-complex-derived porous carbon (Se/MnMC-B). The approach uses the confined, narrow space that is sandwiched between two compact NaCl solid disks, thus avoiding the need for protection with argon or a vacuum environment during processing. The electrochemical properties for both lithium and sodium storage of our Se/MnMC-B cathode were found to be outstanding. For lithium storage, the Se/MnMC-B cathode (with 72% selenium loading) exhibited a capacity of 580 mA h g(-1) after 1000 cycles at 1 C, and an excellent rate capability was achieved at 20 C and 510 mA h g(-1). For sodium storage, a specific capacity of 535 mA h g(-1) was achieved at 0.1 C after 150 cycles. These results demonstrate the potential of this approach as a new effective general synthesis method for confining other low melting point materials into a porous carbon matrix.
机译：对于锂-硒电池，硒的导电性差和活性硒的利用率低阻碍了商业应用。在这里，我们报告了一种新的盐腌法，使硒能够更好地渗入金属络合物衍生的多孔碳（Se / MnMC-B）中。该方法使用了一个狭窄的狭窄空间，该空间夹在两个紧凑的NaCl固态磁盘之间，从而避免了在处理过程中需要用氩气或真空环境进行保护。我们的Se / MnMC-B阴极在锂和钠存储方面的电化学性能均非常出色。对于锂存储，Se / MnMC-B阴极（硒含量为72％）在1 C下经过1000次循环后显示出580 mA hg（-1）的容量，在20 C和510 mA hg下获得了出色的倍率能力（-1）。对于钠存储，经过150个循环后，在0.1 C下达到535 mA h g（-1）的比容量。这些结果证明了这种方法作为将其他低熔点材料限制在多孔碳基体中的新有效的通用合成方法的潜力。

著录项

  • 来源
    《Advanced Functional Materials》 |2015年第32期|5229-5238|共10页
  • 作者

    Li Xiaona; Liang Jianwen; Hou Zhiguo; Zhang Wanqun; Wang Yan; Zhu Yongchun; Qian Yitai;

  • 作者单位

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Peoples R China;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Peoples R China;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Peoples R China;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Peoples R China;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Peoples R China;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Peoples R China;

    Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Chem, Hefei 230026, Peoples R China;

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

    batteries; metal-organic frameworks; Li-Se lithium storage; porous structures;

    机译：电池;金属有机框架;锂硒电池;多孔结构;

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