Film capacitors for energy storage

Are ferrite-based film capacitors efficient?

Pan, H. et al. Giant energy density and high efficiency achieved in bismuth ferrite-based film capacitors via domain engineering. Nat. Commun. 9, 1813 (2018). Chen, X. et al. Giant energy storage density in lead-free dielectric thin films deposited on Si wafers with an artificial dead-layer. Nano Energy 78, 105390 (2020).

What are metallized film capacitors?

Metallized film capacitors towards capacitive energy storage at elevated temperatures and electric field extremes call for high-temperature polymer dielectrics with high glass transition temperature (Tg), large bandgap (Eg), and concurrently excellent self-healing ability.

Which thin film capacitors are used for dielectric energy storage?

Antiferroelectric (Pb 0.87 Sr 0.05 Ba 0.05 La 0.02) (Zr 0.52 Sn 0.40 Ti 0.08)O 3 thin film capacitors were fabricated for dielectric energy storage. Thin films with excellent crystal quality (FWHM 0.021°) were prepared on (100) SrRuO 3 /SrTiO 3 substrates by pulsed laser deposition.

What are film capacitors used for?

Currently, research on film capacitors primarily focuses on metalized organic polymer capacitors, which exhibit high charge-discharge rates, high flexibility, and excellent self-healing capabilities, promising good application prospects in areas such as microwave communications, hybrid electric vehicles, and renewable energy.

What is a high-temperature film capacitor?

For instance, industries such as electric vehicles, wind power generation, and photovoltaics require film capacitors that can operate reliably in high-temperature environments ranging from 100 ℃ to 250 ℃ , , . Consequently, the polymer employed must possess superior energy storage density along with high-temperature resistance.

What is the energy storage density of metadielectric film capacitors?

The energy storage density of the metadielectric film capacitors can achieve to 85 joules per cubic centimeter with energy efficiency exceeding 81% in the temperature range from 25 °C to 400 °C.