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通过双通激光处理来提高灵活的激光诱导石墨烯超级电容器的性能.

Assia Hamada¹, Yu Kyoung Ryu^1,2, Andres Velasco¹

¹Instituto de Sistemas Optoelectrónicos y Microtecnología, Universidad Politécnica de Madrid, Av. Complutense 30, 28040 Madrid, Spain.

|January 31, 2025

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使用条款与条件

这项研究使用简单的激光诱导石墨烯 (LIG) 方法提高了超级电容器的性能. 在聚胺薄膜上进行两次激光传递可以改善孔径大小,石墨化和材料密度,提高能量密度和稳定性.

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:

超级电容器是重要的储能设备.
提高超级电容器性能需要先进的电极材料.
激光诱导石墨烯 (LIG) 为电极制造提供了一个有前途的途径.

研究的目的:

开发一种具有成本效益的方法来改进超级电容电极的激光诱导石墨烯 (LIG).
调查多通激光处理对LIG形态和电化学性质的影响.
评估使用增强方法制造的基于LIG的超级电容器的性能.

主要方法:

使用二氧化碳雕刻机连续两次激光通过聚胺薄膜来创建LIG.
描述LIG.的结构和形态变化.
使用LIG电极制造和测试超级电容器设备.

主要成果:

两次激光传递扩大了孔径大小,增加了石墨化,并使LIG材料变密.
面积能量密度在0.05mA/cm2.2时从0.77增加到2.20μWh/cm2.
相当系列电阻降低了60%,在10,000个循环后保持了91%的电容.

关键词:

储能储能是指储能过程中的能量.超级电容器的超级电容器是什么

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结论:

提出的简单且具有成本效益的双通激光处理显著提高了超级电容器的LIG性能.
改进的LIG电极表现出优越的电化学性能,包括更高的能量密度和出色的循环稳定性.
这种方法为开发高性能,耐用的超级电容器提供了可行的途径.