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Related Concept Videos

Energy Stored in a Capacitor: Problem Solving01:26

Energy Stored in a Capacitor: Problem Solving

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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...
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Energy Stored in Capacitors01:10

Energy Stored in Capacitors

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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...
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Energy Stored in a Capacitor01:12

Energy Stored in a Capacitor

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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.
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MOS Capacitor01:25

MOS Capacitor

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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...
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Capacitor With A Dielectric01:18

Capacitor With A Dielectric

4.1K
Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
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Voltaic/Galvanic Cells02:47

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Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
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Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
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Microsupercapacitive Stone Module for Natural Energy Storage.

Seunghyun Back1, Jung Hwan Park2, Bongchul Kang1

  • 1School of Mechanical Engineering, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707, Republic of Korea.

ACS Nano
|June 22, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel energy storage system using natural stone and laser technology. This eco-friendly microsupercapacitor offers a scalable and durable solution for accessible power, paving the way for green electronics.

Keywords:
explosive reduction sinteringlaser−material interactionnatural energy-storage interfaceporous structuresstone-based electronics

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Sustainable Energy

Background:

  • Accessible energy storage systems (ESSs) are crucial for autonomous power and miniaturized electronics.
  • Current ESSs often lack user interface accessibility and scalability.
  • Natural materials offer potential for low-cost, eco-friendly energy storage solutions.

Purpose of the Study:

  • To implement a high-performance asymmetric microsupercapacitor (MSC) on a natural stone surface.
  • To demonstrate a scalable and recyclable energy storage interface using laser-material interaction (LMI) technology.
  • To explore the potential of natural stone as a substrate for sustainable energy storage.

Main Methods:

  • Fabrication of conductive porous copper electrodes on marble using laser-material interaction (LMI).
  • Sequential electroplating of Fe3O4 and Mn3O4 for a hybrid MSC.
  • Scaling up of MSC stone cells via serial/parallel connections to form an energy storage wall.

Main Results:

  • Achieved high areal energy and power density (6.55 μWh cm⁻² and 1.2 mW cm⁻²) on the stone interface without complex fabrication.
  • Demonstrated a scalable energy storage wall with excellent durability under harsh impact tests.
  • Confirmed recyclability of the natural stone substrate, reducing environmental impact.

Conclusions:

  • Natural stone can serve as a low-cost, eco-friendly, and recyclable platform for advanced energy storage interfaces.
  • LMI technology enables efficient fabrication of high-performance MSCs on irregular surfaces.
  • The developed energy storage wall concept offers a sustainable and scalable solution for future energy needs.