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Related Concept Videos

Capacitor With A Dielectric01:18

Capacitor With A Dielectric

5.1K
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.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
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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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Capacitors01:15

Capacitors

1.0K
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...
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Capacitors and Capacitance01:18

Capacitors and Capacitance

9.9K
A device consisting of two electrical conductors that are separated by a distance and used to store electrical charges is called a capacitor. The space between the conductors is either a vacuum or an insulating material, called a dielectric. Capacitors have many applications, ranging from filtering static from radio reception to energy storage in heart defibrillators.
When the conductors are two identical parallel plates, it is called a parallel plate capacitor. When battery terminals are...
9.9K
Energy Stored in a Capacitor01:12

Energy Stored in a Capacitor

4.9K
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.
4.9K
Energy Stored in Capacitors01:10

Energy Stored in Capacitors

1.2K
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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Updated: Mar 7, 2026

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

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A Highly Durable, Transferable, and Substrate-Versatile High-Performance All-Polymer Micro-Supercapacitor with

Minshen Zhu1, Yang Huang1,2, Yan Huang1

  • 1Department of Physics and Materials Science, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR, 999077, China.

Advanced Materials (Deerfield Beach, Fla.)
|February 22, 2017
PubMed
Summary

Researchers developed a durable, high-performance all-polymer micro-supercapacitor. This device features plug-and-play functionality, allowing transfer to any substrate while retaining full performance.

Keywords:
flexible energy-storage devicesmicro-supercapacitorssubstrate versatilitytransferable

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Micro-supercapacitors are crucial for portable electronics.
  • Existing micro-supercapacitors face challenges in durability and integration.

Purpose of the Study:

  • To develop a highly durable and high-performance all-polymer micro-supercapacitor.
  • To enable a plug-and-play function for easy integration onto various substrates.

Main Methods:

  • Utilized a newly developed fabrication technology for all-polymer micro-supercapacitors.
  • Demonstrated the transferability of the micro-supercapacitors to diverse substrates.

Main Results:

  • Achieved a highly durable all-polymer micro-supercapacitor.
  • The developed micro-supercapacitors exhibit high performance.
  • Successfully demonstrated plug-and-play functionality with retained performance after transfer.

Conclusions:

  • The new technology enables the creation of robust and versatile micro-supercapacitors.
  • The plug-and-play feature significantly enhances the applicability of micro-supercapacitors in flexible electronics.