Jump to main content
Jump to site search


Constructing novel fiber electrodes with porous nickel yarns for all-solid-state flexible wire-shaped supercapacitors

Abstract

Wire-shaped supercapacitors (WSSCs) are one of the most promising energy storage devices for portable and wearable electronics. However, the large-scale preparation of fiber electrodes with high-mass loading of active-materials and the construction of wire-shaped devices with high capacity and excellent flexibility are still a big challenge. In this study, a novel scalable fiber electrode is developed by depositing MnO2/reduced graphene oxide (rGO) on porous nickel yarns (PNYs), named as MnO2/rGO@PNYs fiber electrodes, for the fabrication of all-solid-state flexible WSSCs. Taking advantage of the large surface area and plenty of capillary tunnels of PNYs, high loading of rGO and MnO2 active-materials are deposited onto the surface of PNYs. Using these as-fabricated MnO2/rGO@PNYs fiber electrodes, all-solid-state flexible WSSCs are assembled with the assistance of PVA/LiCl gel as both electrolyte and separator. The assembled flexible WSSCs delivers a high volume capacitance of 36.81 F cm-3 and remains 80.1% capacitance of the initial value after 3000 cycles under bending 45° operation, suggesting its outstanding cycling stability and high mechanical flexibility.

Back to tab navigation

Supplementary files

Article information


Submitted
01 Jul 2020
Accepted
05 Oct 2020
First published
09 Oct 2020

New J. Chem., 2020, Accepted Manuscript
Article type
Paper

Constructing novel fiber electrodes with porous nickel yarns for all-solid-state flexible wire-shaped supercapacitors

X. Han, J. Zhu, L. Lei, Y. Wang, T. Lan, C. Kang, Y. Li and Y. Ma, New J. Chem., 2020, Accepted Manuscript , DOI: 10.1039/D0NJ03308A

Social activity

Search articles by author

Spotlight

Advertisements