Related Experiment Video
Updated: Sep 24, 2025

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
Ionic transport kinetics and enhanced energy storage in the electrode/poly(N-vinyl imidazole) interface for
Karthik Krishnan1, Selvakumar Karuthapandi2, Saranyan Vijayaraghavan1
1Corrosion and Material Protection Division, CSIR- Central Electrochemical Research Institute (CECRI) Karaikudi TN 630-003 India.
Abstract:
The detailed understanding and control of ionic transport pathways in the electrode/electrolyte interface is vital for realizing micro-scale energy storage devices and formulating adequate design principles. A planar device geometry with nanostructured thin solid polymer electrolyte (SPE) and potassium hydroxide (KOH) incorporated poly(N-vinyl imidazole) (PVI) is demonstrated for micro-supercapacitors (MSCs). The adsorption/desorption kinetics of ionic charges in the interfacial regime of ITO/PVI-KOH has been investigated for electrical double layer capacitance (EDLC) characteristics. A single-cell of ITO/PVI-KOH/ITO planar MSC shows the large variation in volumetric capacitance and capacitance retention characteristics when the thickness of PVI-KOH approaches the characteristic nanoscale. Moreover, ITO/PVI-KOH/ITO planar MSC consisting of five series-cells exhibits the maximum operating cell voltage of 5.0 V with maximum volumetric energy and power density of 0.056 mW h cm-3 and 6.89 mW cm-3, respectively. The electrochemical properties of planar MSC have been systematically studied so as to confirm how the anions and cations are separated at electrode/electrolyte interfaces by means of an electromotive force. Significantly, the hydrated PVI enables charge migration and separation of cations and anions at the electrode/electrolyte interfaces.
More Related Videos
08:59Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
Published on: November 30, 2022
12:28Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
Published on: February 1, 2016
Related Concept Videos
Energy Stored in a Capacitor
Energy Stored in Capacitors
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...
Interfacial Electrochemical Methods: Overview
The Supercomplexes in the Crista Membrane
MOS Capacitor
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
Ion Exchange