Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Energy Stored in Capacitors

Energy Stored in Capacitors

A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
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...

Equivalent Capacitance

Equivalent Capacitance

From the study of resistive circuits, it is understood that employing a series-parallel combination serves as an effective strategy for simplifying circuits. Capacitors can be arranged within a circuit in one of two ways: a series configuration or a parallel configuration. The way these capacitors are connected to a battery will influence both the potential drop across each individual capacitor and the size of the charge that each capacitor can store. This is determined by the specific type of...

Equivalent Capacitance

Equivalent Capacitance

Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the potential drop across each capacitor and the magnitude of charge stored in the individual capacitor depends on the type of the connection. The capacitor combination is replaced by a single equivalent capacitor that stores the same amount of charge as the combination for a given potential difference.
The following strategies are adopted to calculate...

Ampere-Maxwell's Law: Problem-Solving

Ampere-Maxwell's Law: Problem-Solving

A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of the...

Capacitors

Capacitors

Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...

Energy Stored in a Capacitor: Problem Solving

Energy Stored in a Capacitor: Problem Solving

In 1749, Benjamin Franklin coined the word battery for a series of capacitors connected to store energy. Capacitors store electric potential energy that can be released over a short time. This property means capacitors have a wide range of applications.
Capacitor-discharge ignition is a type of ignition system commonly found in small engines where the energy released from a capacitor ignites an induction coil that, in turn, fires the spark plug.
To calculate the energy stored in a capacitor of...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Dependence of Supercapacitor Peukert Constant on Voltage, Aging, and Temperature.

IEEE transactions on power electronics·2020

Same author

A comparative study of supercapacitor capacitance characterization methods.

Journal of energy storage·2020

Same author

A comprehensive study of supercapacitor Peukert constant dependence on voltage.

Journal of energy storage·2020

Same author

Application of Peukert's Law in Supercapacitor Discharge Time Prediction.

Journal of energy storage·2019

Same author

Effects of Supercapacitor Physics on Its Charge Capacity.

IEEE transactions on power electronics·2019

Same author

Estimation of Supercapacitor Charge Capacity Bounds Considering Charge Redistribution.

IEEE transactions on power electronics·2018

Search research articles

Related Experiment Video

Updated: Dec 7, 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

Peukert's Law for Supercapacitors with Constant Power Loads: Applicability and Application.

Hengzhao Yang¹

¹Department of Electrical Engineering, California State University, Long Beach, CA 90840 USA.

IEEE Transactions on Industry Applications

|September 28, 2020

Summary

Peukert's law accurately predicts supercapacitor discharge time under constant power loads above a specific threshold. This study validates its applicability, accounting for supercapacitor physics like electrode structure and self-discharge.

Keywords:

Peukert constant Peukert’s law Supercapacitor constant power load discharge time prediction

More Related Videos

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Published on: November 30, 2022

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors

Published on: November 30, 2021

Related Experiment Videos

Last Updated: Dec 7, 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

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Published on: November 30, 2022

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors

Elaborate Control of Inkjet Printer for Fabrication of Chip-based Supercapacitors

Published on: November 30, 2021

Area of Science:

Electrical Engineering
Materials Science

Background:

Peukert's law, originally for lead-acid batteries, describes how discharge current affects delivered charge.
Supercapacitors have unique physical properties influencing their discharge characteristics.

Purpose of the Study:

To investigate the applicability of Peukert's law to supercapacitors under constant power discharge.
To evaluate Peukert's law for predicting supercapacitor discharge time.

Main Methods:

Experimental validation of Peukert's law across various supercapacitors and voltages.
Analysis of supercapacitor discharge behavior under constant power loads.
Investigation into the influence of porous electrode structure, charge redistribution, and self-discharge.

Main Results:

Peukert's law is applicable to supercapacitors above a certain power threshold.
The law's predictive accuracy diminishes at lower discharge power levels.
Experimental data confirms the effectiveness of Peukert's law for discharge time prediction.

Conclusions:

Peukert's law can be a valuable tool for estimating supercapacitor lifespan under specific operating conditions.
Understanding the interplay of supercapacitor physics is crucial for accurate modeling.
The study provides a foundation for optimizing supercapacitor performance prediction.