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A Desolvated Solid–Solid Interface for a High-Capacitance Electric Double Layer

机译：用于高电容电双层的脱溶的固体界面

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摘要

Understanding the electric double layer is essential for achieving efficient electrochemical energy storage technologies. A conventional solid-liquid electrode interface suffers from serious self-discharge and a narrow voltage window, which makes the development of a solid-solid interface imperative. However, an in-depth understanding of the electric double layer with a solid- solid interface is lacking. Here, a solid-solid interfacial electric double layer is proposed with excellent electrochemical performance. The solid layer is constructed by the electrochemical decomposition of lithium difluora(oxalate) borate, which provides a desolvated environment for the establishment of a electric double layer. This makes a stronger interaction between the electrode surface and the ions. Based on this unique property, it is found that the solid- solid interfacial electric double layer has an increased capacitance, which suggests a way to develop high-energy electrochemical capacitors.
机译：理解电双层对于实现有效的电化学能量存储技术至关重要。传统的固液电极界面具有严重的自放电和窄电压窗口，这使得固体界面的势在必行的发展。然而，缺乏对具有固体界面的电双层的深入理解。这里，提出了一种具有优异的电化学性能的固体界面电双层。通过锂二氟（草酸盐）硼酸锂的电化学分解构成固体层，其为建立电双层提供了脱溶的环境。这使得电极表面和离子之间的相互作用更强。基于这种独特的性质，发现固体界面电双层具有增加的电容，这表明开发高能电化学电容器的方法。

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  • 来源
    《Advanced energy materials》 |2019年第12期|1803715.1-1803715.6|共6页
  • 作者

    Wang Yu-Zuo; Shan Xu-Yi; Ma Li-Po; Wang Jia-Wei; Wang Da-Wei; Peng Zhang-Quan; Cheng Hui-Ming; Li Feng;

  • 作者单位

    Chinese Acad Sci Shenyang Natl Lab Mat Sci Inst Met Res Shenyang 110016 Liaoning Peoples R China|Northeastern Univ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

    Chinese Acad Sci Shenyang Natl Lab Mat Sci Inst Met Res Shenyang 110016 Liaoning Peoples R China;

    Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Electroanalyt Chem Changchun 130022 Jilin Peoples R China;

    Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Electroanalyt Chem Changchun 130022 Jilin Peoples R China;

    Univ New South Wales Sch Chem Engn Sydney NSW 2052 Australia;

    Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Electroanalyt Chem Changchun 130022 Jilin Peoples R China;

    Chinese Acad Sci Shenyang Natl Lab Mat Sci Inst Met Res Shenyang 110016 Liaoning Peoples R China|Tsinghua Univ Tsinghua Berkeley Shenzhen Inst Shenzhen 518055 Peoples R China|King Abdulaziz Univ Ctr Excellence Environm Studies Jeddah 21589 Saudi Arabia;

    Chinese Acad Sci Shenyang Natl Lab Mat Sci Inst Met Res Shenyang 110016 Liaoning Peoples R China|Univ Sci & Technol China Sch Mat Sci & Engn Hefei 230026 Anhui Peoples R China;

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

    capacitance; electric double layers; solid-solid interfaces;

    机译：电容;电双层;固体界面;

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