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

MOS Capacitor

MOS Capacitor

A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...

Energy Stored in a Capacitor

Energy Stored in a Capacitor

When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential energy is released as kinetic energy of the arrow. A capacitor works on the same principle in which the work done is saved as electric potential energy. The potential energy (UC) could be calculated by measuring the work done (W) to charge the capacitor.

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...

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...

Design Example: Capacitance Multiplier Circuit

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.

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...

You might also read

Related Articles

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

Sort by

Same author

Is All Lithium Created Equal? Effects of Processing Conditions on Lithium Microstructure and Battery Performance.

ACS applied materials & interfaces·2026

Same author

Central carbon metabolism switching in lytic versus temperate coral reef viral communities.

bioRxiv : the preprint server for biology·2025

Same author

Controlling Droplet Evaporation in Aerosol Jet Printing to Understand and Mitigate Overspray.

Small science·2025

Same author

A Review of 2024 at <i>The Journal of Physical Chemistry</i>.

The journal of physical chemistry. A·2025

Same author

A Review of 2024 at <i>The Journal of Physical Chemistry</i>.

The journal of physical chemistry. B·2025

Same author

Growth Kinetics of Graphene on Cu(111) Foils from Methane, Ethyne, Ethylene, and Ethane.

Angewandte Chemie (International ed. in English)·2024

Search research articles

Related Experiment Video

Updated: Apr 29, 2026

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

A multifunctional load-bearing solid-state supercapacitor.

Andrew S Westover¹, John W Tian, Shivaprem Bernath

¹Department of Mechanical Engineering, Vanderbilt University , Nashville, Tennessee 37235, United States.

|May 15, 2014

Summary

Researchers developed a novel load-bearing material that stores energy while withstanding mechanical stress. This structural energy storage material integrates ion-conducting polymers within nanoporous silicon for diverse applications.

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: Apr 29, 2026

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:

Materials Science
Energy Storage
Nanotechnology

Background:

Traditional energy storage devices often lack mechanical robustness.
Integrating energy storage with structural components presents a significant engineering challenge.
Developing multifunctional materials is key for advanced technological systems.

Purpose of the Study:

To demonstrate a load-bearing material capable of simultaneous energy storage and mechanical stress resistance.
To explore the potential of ion-conducting polymers within nanoporous silicon for structural energy storage.
To evaluate the material's performance under various mechanical loads and environmental conditions.

Main Methods:

Fabrication of nanoporous silicon by etching bulk conductive silicon.
Infiltration of ion-conducting polymers into the nanoporous silicon structure.
Mechanical testing including tensile, shear, compression, and impact tests.
Electrochemical performance evaluation under mechanical stress.

Main Results:

Achieved energy densities near 10 W h/kg with 98% Coulombic efficiency.
Demonstrated capability to withstand over 300 kPa tensile stress and 80 g vibratory acceleration.
Exhibited excellent performance across a range of static and dynamic mechanical tests.
Validated the material's multifunctional properties under combined mechanical and electrical loads.

Conclusions:

The developed material offers a viable solution for integrated structural energy storage.
Its robust mechanical properties and energy storage capacity open possibilities for next-generation devices.
Potential applications span renewable energy systems, transportation, and mobile electronics.