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Updated: May 28, 2025

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites

Application of a Coupling Agent to Improve the Dielectric Properties of Polymer-Based Nanocomposites

Published on: September 19, 2020

Ordering-Structured Antiferroelectric Composite Ceramics for Energy Storage Applications.

Nengneng Luo¹, Xiafeng He^1,2, Chao Xu³

¹State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.

Advanced Materials (Deerfield Beach, Fla.)

|February 11, 2025

Summary

Researchers developed nacre-like composite ceramics for advanced energy storage. This innovative layered structure significantly boosts dielectric breakdown strength and energy storage density in antiferroelectric materials.

Keywords:

antiferroelectric breakdown strength composite ceramic energy storage application parallel‐aligned Al2O3 plate

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Area of Science:

Materials Science
Ceramics Engineering
Energy Storage

Background:

Dielectric capacitors require high power density and rapid discharge for energy storage.
Limited breakdown strength of ceramics restricts energy storage density.
Natural nacre's layered structure inspires strategies for material enhancement.

Purpose of the Study:

To enhance the breakdown strength and energy storage density of dielectric ceramics.
To develop a nacre-like layered structure using composite ceramics.
To investigate the effect of aligned fillers on ceramic properties.

Main Methods:

Utilizing phase-field simulations for structural design guidance.
Constructing composite ceramics with a nacre-like layered architecture.
Incorporating parallel-aligned Al2O3 plates within a (Pb0.98La0.02)(Zr0.7Sn0.3)0.995O3 matrix.

Main Results:

Achieved a breakdown strength of 570 kV cm-1, a significant increase from 390 kV cm-1.
Obtained an ultrahigh recoverable energy storage density of 13.2 J cm-3, a 50% enhancement.
Demonstrated that aligned Al2O3 plates effectively block charge migration and enhance voltage endurance.

Conclusions:

The nacre-like layered structure significantly improves the performance of antiferroelectric composite ceramics.
This approach offers a novel pathway for designing high-performance dielectric materials for energy storage.
The enhanced voltage endurance makes these composites suitable for next-generation energy storage applications.