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Updated: Dec 19, 2025

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

2D nanosheet/3D cubic framework Ni-Co sulfides for improved supercapacitor performance via structural engineering.

Qi Zhang¹, Qiqi Shi, Ye Yang

¹Key Laboratory of Eco-Chemical Engineering, Taishan Scholar Advantage and Characteristic Discipline Team of Eco-Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China. inorchemwl@126.com.

Dalton Transactions (Cambridge, England : 2003)

|June 9, 2020

Summary

Researchers developed novel nickel-sulfide and cobalt-sulfide (Ni3S2@Co3S4) battery electrodes for high-performance supercapacitors. The optimized NCS-60 material shows excellent capacity, rate capability, and stability, advancing energy storage solutions.

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Last Updated: Dec 19, 2025

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

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Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Supercapacitors require advanced electrode materials for enhanced performance.
Multi-dimensional structured battery-type electrodes offer a promising strategy for high-performance supercapacitors.

Purpose of the Study:

To synthesize and characterize Ni3S2@Co3S4 battery-type electrode materials with controlled morphologies.
To investigate the electrochemical properties of these materials for supercapacitor applications.

Main Methods:

Hydrothermal synthesis with varying reaction times to control morphology.
Electrochemical testing including specific capacity, rate capability, and cycle stability measurements.
Fabrication and testing of a battery-supercapacitor hybrid device.

Main Results:

NCS-60, with interconnected 2D nanosheets and 3D cubic frameworks, exhibited high conductivity, numerous active sites, and good wettability.
NCS-60 delivered a specific capacity of 388.9 mA h g-1 (3500 F g-1) at 1 A g-1, retaining 88.6% at 10 A g-1.
The battery-type supercapacitor hybrid device achieved an energy density of 41.8 W h kg-1 at 800 W kg-1.

Conclusions:

Controlling hydrothermal reaction time is an effective method for tuning the morphology of in situ grown Ni3S2@Co3S4 materials.
The developed Ni3S2@Co3S4 electrodes significantly improve the electrochemical performance of supercapacitors.
This work presents a viable approach for designing advanced electrode materials for next-generation energy storage devices.