Issue 10, 2022

High-performance quasi-solid-state flexible supercapacitors based on a flower-like NiCo metal–organic framework

Abstract

NiCo metal–organic framework (MOF) electrodes were prepared by a simple hydrothermal method. The flower-like NiCo MOF electrode exhibited an exciting potential window of 1.2 V and an excellent specific capacitance of 927.1 F g−1 at 1 A g−1. The flower-like NiCo MOF//activated carbon (AC) device delivered a high energy density of 28.5 W hkg−1 at a power density of 400.5 W kg−1 and good cycle stability (95.4% after 5000 cycles at 10 A g−1). Based on the flower-like NiCo MOF electrode, the asymmetric quasi-solid-state flexible supercapacitor (AFSC) was prepared and exhibited good capacitance retention after bending (79% after 100 bends and 64.4% after 200 bends). Furthermore, two AFSCs in series successfully lit up ten parallel red LED lights, showing great application potential in flexible and wearable energy storage devices.

Graphical abstract: High-performance quasi-solid-state flexible supercapacitors based on a flower-like NiCo metal–organic framework

Supplementary files

Article information

Article type
Paper
Submitted
02 Dec 2021
Accepted
10 Feb 2022
First published
16 Feb 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 5910-5918

High-performance quasi-solid-state flexible supercapacitors based on a flower-like NiCo metal–organic framework

Y. Du, R. Liang, J. Wu, Y. Ye, S. Chen, J. Yuan, J. Chen and P. Xiao, RSC Adv., 2022, 12, 5910 DOI: 10.1039/D1RA08785A

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