Authors to whom correspondence should be addressed. Enhancing the energy storage properties of dielectric polymer capacitor films through composite materials has gained widespread recognition.
High-energy-density dielectric materials play a crucial role in advanced energy storage devices for emerging electronic and power applications. However, most existing polymer dielectrics for film capacitors still struggle to meet the trade-off between high Ud and high η.
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.
Film capacitors based on polymer dielectrics face substantial challenges in meeting the requirements of developing harsh environment (≥150 °C) applications. Polyimides have garnered attention as promising dielectric materials for high-temperature film capacitors due to their exceptional heat resistance.
A record-high energy density of ∼4.9 J/cm 3 with η > 95 % is obtained at 150 °C. Stable cyclability over 100,000 cycles under 400 MV/m at 150 °C is achieved. Film capacitors based on polymer dielectrics face substantial challenges in meeting the requirements of developing harsh environment (≥150 °C) applications.
Dielectric capacitors are the ideal energy storage devices because they have excellent power density, high working voltages, and a long lifespan. With its lower size and better energy storage density, film capacitors make them simpler to incorporate into circuits than traditional dielectric capacitor devices.
1 · Ultra-High Capacitive Energy Storage Density at 150 °C Achieved in Polyetherimide …
High-energy-density metallized film capacitors select state-of-the-art …
With its lower size and better energy storage density, film capacitors make them simpler to incorporate into circuits than traditional dielectric capacitor devices. Lead-free Nb-based …
With the development of advanced electronic devices and electric power …
Film capacitors with high energy storage are becoming particularly important with the development of advanced electronic and electrical power systems. Polymer-based …
Enhancing the energy storage properties of dielectric polymer capacitor films through composite materials has gained widespread recognition. Among the various strategies for improving dielectric materials, nanoscale …
Film capacitors based on polymer dielectrics face substantial challenges in meeting the requirements of developing harsh environment (≥150 °C) applications. Polyimides …
Regarding dielectric energy storage materials, apart from the parameters described above, the other electrical and mechanical parameters also demand to be …
Film capacitors based on polymer dielectrics face substantial challenges in …
High-energy-density metallized film capacitors select state-of-the-art benchmark biaxially oriented polypropylene (BOPP) as dielectric layers due to its intrinsic advantages …
Flexible film capacitors with high energy storage density (W rec) and charge–discharge efficiency (η) are a cutting-edge research topic in the current field of energy …
1 · Ultra-High Capacitive Energy Storage Density at 150 °C Achieved in Polyetherimide Composite Films by Filler and Structure Design. Yan Guo, Yan Guo. Electronic Materials …
Recently, film capacitors has achieved excellent energy storage performance through a variety of methods, and the preparation of multilayer films has become the main way to improve its...
Nature Materials - Electrostatic capacitors can enable ultrafast energy storage and release, but advances in energy density and efficiency need to be made. Here, by doping …
In recent years, the advancement in ceramic film capacitor technology has attracted significant research interest in developing electronic materials for applications at …
Nature Materials - Electrostatic capacitors can enable ultrafast energy storage …
An optimum combination of high energy d. of 54.3 J cm-3 and good storage efficiency of 51.3% are obtained for the ZrO2 film capacitors with 2 nm-thick HAO insert layer. These values correspond to an increase of ~ 55% and ~ 92%, …
Capacitors exhibit exceptional power density, a vast operational temperature range, remarkable reliability, lightweight construction, and high efficiency, making them extensively utilized in the realm of energy storage. …
This review aims to provide a comprehensive summary and understanding of both the polymer dielectric film materials and film capacitor devices, with a focus on …
Recently, film capacitors has achieved excellent energy storage performance through a variety of methods, and the preparation of multilayer films has become the main way …
Enhancing the energy storage properties of dielectric polymer capacitor films through composite materials has gained widespread recognition. Among the various strategies …
Due to high power density, fast charge/discharge speed, and high reliability, dielectric capacitors are widely used in pulsed power systems and power electronic systems. However, compared …
An optimum combination of high energy d. of 54.3 J cm-3 and good storage efficiency of 51.3% are obtained for the ZrO2 film capacitors with 2 nm-thick HAO insert layer. These values …
With the development of advanced electronic devices and electric power systems, polymer-based dielectric film capacitors with high energy storage capability have …
It is demonstrated that the energy storage capability of dielectric materials are determined by two major parameters: the dielectric constant (ε r) and the breakdown strength (E b) [20], where …
The energy density of dielectric ceramic capacitors is limited by low breakdown fields. Here, by considering the anisotropy of electrostriction in perovskites, it is shown that …
Notably, among the four ferroelectric materials, KNN exhibits the highest enhancement ratio in recoverable energy storage density, reaching up to 165% Therefore, the introduction of defect dipoles proves to be an effective …