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All-solid-state supercapacitors using a highly-conductive neutral gum electrolyte

机译：使用具有高导电中性胶电解质的全固态超级电容器

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摘要

Recently, the development of safe, stable, and long-life supercapacitors has attracted considerable interest driven by the fast-growth of flexible wearable devices. Herein, we report an MnO2-based symmetric all-solid-state supercapacitor, using a neutral gum electrolyte that was prepared by embedding aqueous sodium sulfate solution in a biopolymer xanthan gum. Resulting from the high ion conductivity 1.12 S m(-1), good water retention, and high structure adaption of such gum electrolyte, the presently described supercapacitor showed high electrochemical performance with a specific capacitance of 347 F g(-1) at 1 A g(-1) and an energy density of 24 mW h cm(-2) The flexible supercapacitor possesses excellent reliability and achieves a retaining capacitance of 82% after 5000 cycles. In addition, the as-prepared supercapacitor demonstrated outstanding electrochemical stability at temperatures between -15 degrees C to 100 degrees C.
机译：最近，安全，稳定和长寿命的超级电容器的发展吸引了灵活可穿戴设备的快速增长所引起的相当大的兴趣。 在此，我们使用中性胶电解质报告基于MNO2的对称全固态超级电容器，所述中性胶电解质通过在生物聚合物黄原胶中嵌入硫酸钠水溶液中来制备。 由高离子电导率1.12 S m（-1），良好的保水和这种胶电解质的高结构适应，目前描述的超级电容器显示出高电化学性能，特定电容为347 f g（-1）。 G（1）和24mW H厘米（-2）的能量密度柔性超级电容器具有优异的可靠性，并且在5000次循环后实现82％的保持电容。 此外，AS制备的超级电容器在-15℃至100摄氏度之间的温度下表现出优异的电化学稳定性。

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  • 来源
    《RSC Advances》 |2019年第15期|共6页
  • 作者

    Yu Nengsheng; Wang Xiaona; Zhang Silan; Zeng Sha; Zhang Yongyi; Di Jiangtao; Li Qingwen;

  • 作者单位

    Chinese Acad Sci Suzhou Inst Nanotech &

    Nanobion Key Lab Multifunct Nanomat &

    Smart Syst Suzhou 215123 Peoples R China;

    Chinese Acad Sci Suzhou Inst Nanotech &

    Nanobion Key Lab Multifunct Nanomat &

    Smart Syst Suzhou 215123 Peoples R China;

    Chinese Acad Sci Suzhou Inst Nanotech &

    Nanobion Key Lab Multifunct Nanomat &

    Smart Syst Suzhou 215123 Peoples R China;

    Chinese Acad Sci Suzhou Inst Nanotech &

    Nanobion Key Lab Multifunct Nanomat &

    Smart Syst Suzhou 215123 Peoples R China;

    Chinese Acad Sci Suzhou Inst Nanotech &

    Nanobion Key Lab Multifunct Nanomat &

    Smart Syst Suzhou 215123 Peoples R China;

    Chinese Acad Sci Suzhou Inst Nanotech &

    Nanobion Key Lab Multifunct Nanomat &

    Smart Syst Suzhou 215123 Peoples R China;

    Chinese Acad Sci Suzhou Inst Nanotech &

    Nanobion Key Lab Multifunct Nanomat &

    Smart Syst Suzhou 215123 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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