Recent Advances in Multilayer-Structure Dielectrics for Energy Storage Application.

Area of Science:

• Materials Science
• Electrical Engineering
• Energy Storage

Background:

• Electrostatic capacitors are vital for high pulsed power and new energy vehicles due to high discharge power density.
• Doping ferroelectric ceramics into polymers has improved dielectric constant and energy storage density, but increased dielectric loss and reduced efficiency.
• Multilayer structures present a novel approach to overcome limitations in traditional dielectric materials for energy storage.

Purpose of the Study:

• To review the physical mechanisms of polarization, breakdown, and energy storage in multilayer dielectric structures.
• To systematically summarize theoretical simulations and experimental results for multilayer dielectrics.
• To describe preparation methods and design strategies for multilayer structure dielectrics.

Main Methods:

• Introduction to fundamental physical mechanisms governing multilayer dielectrics.
• Systematic review of theoretical simulation and experimental findings.
• Description of fabrication techniques and design principles for multilayer capacitors.

Main Results:

• Multilayer structures demonstrate significant potential for enhancing energy storage density in electrostatic capacitors.
• The review consolidates current understanding of polarization, breakdown, and energy storage phenomena in these structures.
• Various preparation methods and design considerations for optimizing multilayer dielectric performance are discussed.

Conclusions:

• Multilayer dielectric structures offer a promising avenue for advancing electrostatic capacitor technology.
• Further research into multilayer designs can unlock new possibilities for tuning electrical performance and energy storage capabilities.
• This review provides a comprehensive overview and outlook on the state-of-the-art in multilayer energy storage dielectrics.