3D打印可穿戴微型超级电容器的锯齿状NiCo_(2)S_(4)基电极  

3D printing of serrated NiCo_(2)S_(4)-based electrodes for wearable micro-supercapacitors

作　　者：姚品晶 李王阳 柯秉渊 陈丽慧 简毅嘉 乔华伟 章华桂 杨会颖 王星辉 Pinjing Yao;Wangyang Li;Bingyuan Ke;Lihui Chen;Yijia Jian;Huawei Qiao;Huagui Zhang;Hui Ying Yang;Xinghui Wang(College of Physics and Information Engineering,Institute of Micro-Nano Devices and Solar Cells,Fuzhou University,Fuzhou 350108,China;Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China;Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering,Changzhou 213000,China;College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China;Pillar of Engineering Product Development,Singapore University of Technology and Design,Singapore 487372,Singapore)

机构地区：[1]College of Physics and Information Engineering,Institute of Micro-Nano Devices and Solar Cells,Fuzhou University,Fuzhou 350108,China [2]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,China [3]Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering,Changzhou 213000,China [4]College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China [5]Pillar of Engineering Product Development,Singapore University of Technology and Design,Singapore 487372,Singapore

出　　处：《Science China Materials》2024年第6期1956-1964,共9页中国科学（材料科学）（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (No.U22A20118);Natural Science Foundation of Fujian Province (No.2023J01400);Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China (No.2021ZZ122);Award Program for Fujian Minjiang Scholar Professorship。

摘　　要：应用3D打印技术制备准固态微型超级电容器(MSCs)在可编程结构设计和高质量负载电极制造方面具有固有的优势.然而,缺乏高性能的可打印墨水和厚电极内缓慢的离子传输,对其实际电荷存储能力提出了重大挑战.本文成功开发了一种具有优异流变性能的新型NiCo_(2)S_(4)基纳米复合墨水,并结合直墨书写的3D打印技术合理设计了准固态MSCs的三维结构.得益于牢固锚定在还原氧化石墨烯(rGO)表面的NiCo_(2)S_(4)纳米颗粒和有序的三维微孔,锯齿状厚电极提供了丰富的反应位点并增强了离子传输.因此,三层锯齿状MSCs的面电容高达416.7 mF cm^(-2).在1 mA cm^(-2)的电流密度下,单层、双层和三层电极的锯齿状MSCs的面电容与相对应的网格状MSCs相比,分别增加了127.1%、349.8%和585.9%.本工作为高面电容MSCs的材料和电极结构的跨尺度设计提供了新见解,推动了MSCs在柔性便携式电子设备中的集成应用研究.The application of 3D printing technology in fabricating quasi-solid-state micro-supercapacitors(MSCs)offers inherent benefits in programmable structural design and high-mass-loading electrode fabrication.Nevertheless,the absence of high-performance printable inks and the sluggish ion transport within thick electrodes present significant challenges to their practical charge storage capabilities.Here,a new NiCo_(2)S_(4)-based nanocomposite ink with excellent rheolo-gical properties has been successfully developed and the 3D structure of quasi-solid-state MSCs is rationally engineered through the direct-ink-writing 3D printing technology.Ben-eficial from the firmly anchored NiCo_(2)S_(4)nanoparticles on the reduced graphene oxide(rGO)and the ordered 3D micro-pores,the thick electrodes with serrated architectures provide abundant reaction sites and exhibit enhanced ion transport.Consequently,the MSCs with triple-layer-serrated electrodes can deliver a high areal capacitance up to 416.7 mF cm^(-2).In comparison to the latticed counterparts,the areal capacitances of serrated MSCs with single-,double-,and triple-layer elec-trodes are amplified by 127.1%,349.8%,and 585.9%,respec-tively(under 1 mA cm^(-2)).This study offers novel insights into the cross-scale design of materials and electrode architectures for quasi-solid-state MSCs with high areal capacitance,pro-moting their integration into flexible and portable electronic devices.

关 键 词：micro-supercapacitor direct ink writing 3D printing quasi-solid-state high-areal capacitance 

分 类 号：O646.5[理学—物理化学] TP391.73[理学—化学] TM53[自动化与计算机技术—计算机应用技术]