• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Synergistic Dual-Additive Electrolyte for Interphase Modification to Boost Cyclability of Layered Cathode for Sodium Ion Batteries
【24h】

Synergistic Dual-Additive Electrolyte for Interphase Modification to Boost Cyclability of Layered Cathode for Sodium Ion Batteries

机译：用于间隔改性的协同双添加剂电解质，以促进层状阴极的可阻止性钠离子电池

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

The electrolyte additive plays an important role in determining the crucial properties of batteries such as cycling stability and safety. Compared to material development, research on electrolyte and interphase is still in the early stage for sodium ion batteries (SIBs). Herein, for the first time, succinic anhydride (SA) is investigated as a synergistic filming additive to fluoroethylene carbonate (FEC), and the lifespan of the dual-additive Na/Na0.6Li0.15Ni0.15Mn0.55Cu0.15O2 (NLNMC) cell is significantly improved, maintaining capacity retention of 87.2% over 400 cycles at 1 C rate. For comparison, the batteries with only one of the two additives or without any additive show much inferior electrochemical performance. After the addition of SA, the interphase layer on the surface of cycled NLNMC material becomes uniform and stable, which contains more oxygen-rich organic species and less NaF. Additionally, the addition of SA also has an impact on the interphase layer in the sodium anode part as indicated by electrochemical impedance spectroscopy (EIS) and energy dispersive spectrometer (EDS) results. Moreover, the online differential electrochemical mass spectrometry (OEMS) tests show the dual-additive cell has less CO2 generation during the initial two cycles compared to that with only FECs which demonstrates another advantage of SA for practical application.
机译：电解质添加剂在确定循环稳定性和安全性等电池的关键性质方面起着重要作用。与材料开发相比，电解质和间间的研究仍处于钠离子电池的早期阶段（SIB）。在此，首次研究琥珀酸酐（SA）作为氟碳酯（FEC）的协同薄膜添加剂，以及双添加剂Na / Na0.6LI0.15NI0.15MN0.55CU0.15O2（NLNMC）的寿命。细胞显着改善，保持87.2％以上的87.2％的容量保持在1℃下速率。为了比较，电池只有两种添加剂中的一种，或者没有任何添加剂，显示出多大的电化学性能。在加入SA之后，循环的NLNMC材料表面上的相位层变为均匀且稳定，其含有更多的富氧有机物质和更少的NAF。另外，如电化学阻抗谱（EIS）和能量分散光谱仪（EDS）结果所示，加入SA也对钠阳极部分中的相位层产生影响。此外，与仅具有用于实际应用的其他优点，在初始两个循环中，在初始两个循环中，在初始两个循环中，在线鉴别电化学质谱（OEM）测试显示了双加性电池的二氧化碳产生较少。

著录项

  • 来源
    《Advanced Functional Materials》 |2021年第17期|2010500.1-2010500.9|共9页
  • 作者

    Fan Jing-Jing; Dai Peng; Shi Chen-Guang; Wen Yanfen; Luo Chen-Xu; Yang Jian; Song Cun; Huang Ling; Sun Shi-Gang;

  • 作者单位

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

    Xiamen Univ Coll Chem & Chem Engn Collaborat Innovat Ctr Chem Energy Mat State Key Lab Phys Chem Solid Surfaces Xiamen 361005 Peoples R China;

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

    cathodes; electrolyte additives; OEMS tests; sodium ion batteries; succinic anhydride;

    机译：阴极;电解质添加剂;OEMS测试;钠离子电池;琥珀酸酐;

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