激光直写制备LIG-Fe3O4复合物微型超级电容器(特邀)
Fabrication of High-Performance LIG-Fe3O4 Composite-Based Micro-Supercapacitor by Laser Direct Writing(Invited)
李璐 1周昊 1韩冬冬1
作者信息
- 1. 吉林大学电子科学与工程学院 集成光电子学国家重点实验室,吉林 长春 130012
- 折叠
摘要
超级电容器是良好的储能器件,具有功率密度高、使用寿命长、充电速度快等优点.激光诱导石墨烯(LIG)是一种常见的双电层电容器电极材料,但LIG双电层电容器通常表现出较低的电化学性能,而活性物质的掺入会提高超级电容器性能.针对如何控制活性物质的掺入问题,提出一种基于激光直写表面滴涂硝酸铁[Fe(NO3)3]的聚酰亚胺(PI)薄膜以制备LIG-Fe3O4复合物电极的微型超级电容器的方法.激光处理过的区域会同时发生PI薄膜烧蚀与Fe(NO3)3分解,产生Fe3O4与LIG复合的LIG-Fe3O4复合物电极.所制备的LIG-Fe3O4复合物微型超级电容器性能与LIG微型超级电容器相比提高了7.58倍.所提方法为制备高性能LIG微型超级电容器提供了一条新途径.
Abstract
Supercapacitors have advantages such as high power density,extended lifetime,and fast charging rate,which make them good energy-storage devices.Laser-induced graphene(LIG)is a widely used electrode material for double-layer electric capacitors;however,double-layer LIG electric capacitors typically exhibit low electrochemical performance,and the addition of active materials improves the supercapacitor performance.To control the incorporation of active substances,we propose a method for preparing LIG-Fe3O4 composite-based micro-supercapacitor by laser direct writing polyimide(PI)films coated with Fe(NO3)3.The laser treated area will simultaneously undergo PI film ablation and Fe(NO3)3 decomposition,resulting in LIG-Fe3O4 composite electrode composed of Fe3O4 and LIG.The performance of the prepared LIG-Fe3O4 composite-based micro-supercapacitor has been improved by 7.58 times compared to LIG-based micro-supercapacitor.The proposed method establishes a new route for preparing high-performance LIG-based micro-supercapacitor.
关键词
储能器件/激光直写/激光诱导石墨烯/微型超级电容器Key words
energy storage devices/laser direct writing/laser-induced graphene/micro-supercapacitor引用本文复制引用
基金项目
国家自然科学基金(62275100)
吉林省发改委项目(2022C047-4)
中央高校基本科研业务费专项()
出版年
2024
NETL
NSTL
万方数据