3D打印可穿戴微型超级电容器的锯齿状NiCo2S4基电极
3D printing of serrated NiCo2S4-based electrodes for wearable micro-supercapacitors
姚品晶 1李王阳 2柯秉渊 1陈丽慧 1简毅嘉 1乔华伟 3章华桂 3杨会颖 4王星辉2
作者信息
- 1. College of Physics and Information Engineering,Institute of Micro-Nano Devices and Solar Cells,Fuzhou University,Fuzhou 350108,China
- 2. 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
- 3. College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China
- 4. Pillar of Engineering Product Development,Singapore University of Technology and Design,Singapore 487372,Singapore
- 折叠
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NiCo2S4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NiCo2S4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.
Abstract
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 NiCo2S4-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 NiCo2S4 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 capacitanceKey words
micro-supercapacitor/direct ink writing/3D printing/quasi-solid-state/high-areal capacitance引用本文复制引用
基金项目
National Natural Science Foundation of China(U22A20118)
Natural Science Foundation of Fujian Province(2023J01400)
Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China(2021ZZ122)
Award Program for Fujian Minjiang Scholar Professorship()
出版年
2024
NETL
NSTL
万方数据