Issue 33, 2022

Ultrahigh-temperature film capacitors via homo/heterogeneous interfaces

Abstract

High-performance dielectric capacitors are in high demand for advanced electronics and electric power systems. However, their relatively low operating temperature limits their widespread applications. Here, guided by phase-field simulations, a capacitor is reported to operate at a record high operating temperature of 400 °C with an energy storage density of 55.4 joules per cubic centimeter, energy efficiency of over 82%, and superior thermal stability and fatigue properties. These ultrahigh-temperature performances are achieved through a relatively simple method of introduction and engineering of homogeneous/heterogeneous interfaces within capacitors, which greatly improve their high-temperature stability, relaxation behavior, and breakdown strength. In our work, we not only successfully fabricate capacitors with potential applications in high-temperature electric power systems and electronic technologies but also open up a promising and general route for designing high-performance electrostatic capacitors through homogeneous/heterogeneous interfaces.

Graphical abstract: Ultrahigh-temperature film capacitors via homo/heterogeneous interfaces

Supplementary files

Article information

Article type
Paper
Submitted
14 Jun 2022
Accepted
19 Jul 2022
First published
09 Aug 2022

J. Mater. Chem. A, 2022,10, 17166-17173

Ultrahigh-temperature film capacitors via homo/heterogeneous interfaces

R. Lu, Z. Shen, C. Ma, T. Duan, L. Lu, G. Hu, T. Hu, C. You, S. Mi, C. Jia, L. Chen and M. Liu, J. Mater. Chem. A, 2022, 10, 17166 DOI: 10.1039/D2TA04710A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements