Bifunctional flexible electrochromic
energy storage devices based on silver
nanowire flexible transparent electrodes

He Zhang; Fangyuan Sun; Ge Cao; Dongyan Zhou; Guofan Zhang; Jiayun Feng; Shang Wang; Fengyu Su; Yanqing Tian; Yan Jun Liu; Yanhong Tian

doi:10.1088/2631-7990/aca638

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Volume 5 Issue 1

Jan. 2023

Article Contents

Article Navigation > International Journal of Extreme Manufacturing > 2023 > 5(1): 015503

Zhang H et al. 2023. Bifunctional flexible electrochromic energy storage devices based on silver nanowire flexible transparent electrodes. Int. J. Extrem. Manuf. 5 015503.

Citation:

Zhang H et al. 2023. Bifunctional flexible electrochromic energy storage devices based on silver nanowire flexible transparent electrodes. Int. J. Extrem. Manuf. 5 015503.

Bifunctional flexible electrochromic energy storage devices based on silver nanowire flexible transparent electrodes

doi: 10.1088/2631-7990/aca638

He Zhang^1,2,
Fangyuan Sun²,
Ge Cao²,
Dongyan Zhou²,
Guofan Zhang²,
Jiayun Feng¹,
Shang Wang¹,
Fengyu Su^{3,4
,
,},
Yanqing Tian^2,5,
Yan Jun Liu^{3
,
,},
Yanhong Tian^{1,6
,
,}

More Information

1 State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, People’s Republic of China;
2 Department of Materials Science and Engineering, Southern University of Science and Technology Shenzhen 518055, People’s Republic of China;
3 Department of Electrical and Electronic Engineering, Southern University of Science and Technology Shenzhen 518055, People’s Republic of China;
4 Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China;
5 Key Laboratory of Energy Conversion and Storage Technology (Southern University of Science and Technology), Ministry of Education, Shenzhen 518055, People’s Republic of China;
6 Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450041, People’s Republic of China

Publish Date: 2023-01-30

Abstract

Flexible electrochromic energy storage devices (FECESDs) for powering flexible electronics have attracted considerable attention. Silver nanowires (AgNWs) are one kind of the most promising flexible transparent electrodes (FTEs) materials for the emerging flexible devices. Currently, fabricating FECESD based on AgNWs FTEs is still hindered by their intrinsic poor electrochemical stability. To address this issue, a hybrid AgNWs/Co(OH)₂/PEDOT:PSS electrode is proposed. The PEDOT:PSS could not only improve the resistance against electrochemical corrosion of AgNWs, but also work as functional layer to realize the color-changing and energy storage properties. Moreover, the Co(OH)2 interlayer further improved the color-changing and energy storage performance. Based on the improvement, we assembled the symmetrical FECESDs. Under the same condition, the areal capacitance (0.8 mF cm⁻²) and coloration efficiency (269.80 cm² C⁻¹) of AgNWs/Co(OH)₂/PEDOT:PSS FECESDs were obviously higher than AgNWs/PEDOT:PSS FECESDs. Furthermore, the obtained FECESDs exhibited excellent stability against the mechanical deformation. The areal capacitance remained stable during 1000 times cyclic bending with a 25 mm curvature radius. These results demonstrated the broad application potential of the AgNWs/Co(OH)₂/PEDOT:PSS FECESD for the emerging portable and multifunctional electronics.
Keywords

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Bifunctional flexible electrochromic energy storage devices based on silver nanowire flexible transparent electrodes

doi: 10.1088/2631-7990/aca638

1 State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, People’s Republic of China;

2 Department of Materials Science and Engineering, Southern University of Science and Technology Shenzhen 518055, People’s Republic of China;

3 Department of Electrical and Electronic Engineering, Southern University of Science and Technology Shenzhen 518055, People’s Republic of China;

4 Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China;

5 Key Laboratory of Energy Conversion and Storage Technology (Southern University of Science and Technology), Ministry of Education, Shenzhen 518055, People’s Republic of China;

6 Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450041, People’s Republic of China

Publish Date: 2023-01-30

Key words:

Abstract:

Flexible electrochromic energy storage devices (FECESDs) for powering flexible electronics have attracted considerable attention. Silver nanowires (AgNWs) are one kind of the most promising flexible transparent electrodes (FTEs) materials for the emerging flexible devices. Currently, fabricating FECESD based on AgNWs FTEs is still hindered by their intrinsic poor electrochemical stability. To address this issue, a hybrid AgNWs/Co(OH)₂/PEDOT:PSS electrode is proposed. The PEDOT:PSS could not only improve the resistance against electrochemical corrosion of AgNWs, but also work as functional layer to realize the color-changing and energy storage properties. Moreover, the Co(OH)2 interlayer further improved the color-changing and energy storage performance. Based on the improvement, we assembled the symmetrical FECESDs. Under the same condition, the areal capacitance (0.8 mF cm⁻²) and coloration efficiency (269.80 cm² C⁻¹) of AgNWs/Co(OH)₂/PEDOT:PSS FECESDs were obviously higher than AgNWs/PEDOT:PSS FECESDs. Furthermore, the obtained FECESDs exhibited excellent stability against the mechanical deformation. The areal capacitance remained stable during 1000 times cyclic bending with a 25 mm curvature radius. These results demonstrated the broad application potential of the AgNWs/Co(OH)₂/PEDOT:PSS FECESD for the emerging portable and multifunctional electronics.