Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

4.6K
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
4.6K

You might also read

Related Articles

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

Sort by
Same author

Enhanced energy storage performance of confined co-doping dielectric films via nanoparticle self-assembly in ferroelectric phases.

Nature communications·2026
Same author

Flexible Unusual Ternary-Component Graded-Modulus Dielectric Films with High-Density Capacitive Energy Storage.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Shielding of the total electric field above building platforms near UHVDC transmission lines by grounded metal mesh.

Scientific reports·2026
Same author

Radical defluoroallylation of polyfluoroalkyl compounds with alkenes via synergistic photoredox/cobalt catalysis.

Nature communications·2026
Same author

Dynamic Severity Assessment of Partial Discharge in HV Bushings Based on the Evolution Characteristics of Dense Clusters in PRPD Patterns.

Sensors (Basel, Switzerland)·2025
Same author

Covalent Adaptable Network Enables Sustainable Polyethylene for Next-Generation Cable Insulation.

Advanced materials (Deerfield Beach, Fla.)·2025

Related Experiment Video

Updated: Jun 10, 2025

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
08:59

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

Published on: November 30, 2022

4.4K

Alicyclic Polyimide With Multiple Breakdown Self-Healing Based on Gas-Condensation Phase Validation for High

Wenjie Huang1, Baoquan Wan1, Xing Yang1

  • 1School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China.

Advanced Materials (Deerfield Beach, Fla.)
|October 14, 2024
PubMed
Summary

A novel alicyclic polyimide offers superior thermal stability and self-healing for high-temperature film capacitors. This advanced polymer dielectric demonstrates exceptional energy density and efficiency at 200°C, outperforming existing materials.

Keywords:
breakdown self‐healingdielectric capacitorshigh‐temperature energy storagepolyimide dielectricswide bandgap

More Related Videos

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
10:40

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

8.2K
Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

12.1K

Related Experiment Videos

Last Updated: Jun 10, 2025

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
08:59

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

Published on: November 30, 2022

4.4K
A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
10:40

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

8.2K
Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

12.1K

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Electrical Engineering

Background:

  • High-temperature film capacitors require polymer dielectrics with both thermal stability and self-healing capabilities.
  • Conventional aromatic polyimides offer thermal stability but lack self-healing due to high carbon content.
  • Existing dielectric materials struggle to meet the demanding requirements of extreme operating conditions.

Purpose of the Study:

  • To design and synthesize an alicyclic polyimide with enhanced thermal stability and self-healing properties.
  • To evaluate the performance of this novel polyimide as a dielectric material for high-temperature film capacitors.
  • To investigate the self-healing mechanisms in high-temperature polyimide dielectrics.

Main Methods:

  • Synthesis of an alicyclic polyimide with a high glass transition temperature (256°C) and wide energy bandgap (4.58 eV).
  • Characterization of electrical conductivity, dielectric breakdown strength, and energy storage performance at high temperatures (200°C).
  • Investigation of dual self-healing mechanisms (gas-phase and condensed-phase) after electrical breakdown cycles.

Main Results:

  • The alicyclic polyimide exhibited significantly lower electrical conductivity compared to classical polyimides at high fields and temperatures.
  • Achieved a discharged energy density of 4.54 J cm⁻³ and over 90% charge-discharge efficiency at 200°C.
  • Retained 93% of dielectric breakdown strength after four cycles, demonstrating excellent self-healing and low residual carbon.

Conclusions:

  • The designed alicyclic polyimide offers a promising solution for high-temperature film capacitors due to its combined thermal stability and self-healing properties.
  • The material's superior performance at elevated temperatures and its dual self-healing mechanisms make it suitable for extreme condition applications.
  • This work highlights the potential of alicyclic polyimides for advanced dielectric applications in energy storage devices.