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通过添加基逆氧电解质来提高共价有机框架超级电容器的电容性

Laura Sierra¹, Jesús Á Martín-Illán², Félix Zamora^2,3

¹Departamento de Química-Física Aplicada, Universidad Autónoma de Madrid, 28049 Madrid, Spain.

Gels (Basel, Switzerland)

|November 26, 2024

概括

灵活的共价有机框架 (COF) 气凝被开发为储能电极. 这些COF电极与氧化还原电解质相结合,显著提高了电容和能量密度,显示出出色的稳定性.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

不断增长的能源需求需要先进的储能解决方案.
聚合有机框架 (COF) 提供可调节的结构,高孔径,以及用于能源应用的大面积.

研究的目的:

开发灵活的COF电极,使用基于imine的COF气凝.
为了研究这些电极与氧化还原电解质的性能,以增强能量存储.

主要方法:

在柔性电极中制造基于 imine 的 COF 气凝.
使用氧化还原电解质 (H2SO4中的化) 和非氧化还原电解质进行电化学测试.
性能评估包括面积容量和循环稳定性.

主要成果:

在1.3 mA cm-2.2的HQ/H2SO4氧化还原电解质下,实现了843 mF cm-2的特殊面积电容.
证明了卓越的循环稳定性,在10,000个循环中保持~100%的容量.
与有机电解质相比,容量是八倍的.

结论:

基于伊米因的COF气凝电极与氧化还原电解质代表了储能方面的有希望的进步.
增强的电容和稳定性突出显示了COF在高性能能源设备中的潜力.

关键词:

气凝是一种空气凝.基诺是一种素.伪电容器伪电容器

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