Nowadays, with the application and popularization of modern power electronic devices and high-voltage electrical systems, and other high-tech industries, there is an urgent
Abstract Dielectric film capacitors for high-temperature energy storage applications have shown great potential in modern electronic and electrical systems, such as
Polyimides have garnered attention as promising dielectric materials for high-temperature film capacitors due to their exceptional heat resistance. However, conventional
This review provides a comprehensive understanding of polymeric dielectric capacitors, from the fundamental theories at the dielectric material level to the latest
High-temperature polymer dielectric capacitors are urgently needed in the new-generation electronic and electrical systems. Whereas, current commercial polymer
Developing dielectric capacitors with robust energy storage capabilities across a broad temperature range, especially in high-temperature environments, remains a formidable
Check for updates High-temperature capacitive energy storage demands that dielectric materials maintain low electrical conduction loss and high discharged energy density under thermal
Dielectric capacitors have emerged as a key component in ultra-high pulse power systems, renowned for their fast charge-discharge capabilities and exceptional power density
The low dielectric constant, limited breakdown strength, and large polariza-tion hysteresis and conduction loss constrain discharged energy density and efficiency of polymer-based dielectric
1. Introduction Dielectric materials find wide usages in microelectronics, power electronics, power grids, medical devices, and the military. Due to the vast demand, the
High-temperature capacitive energy storage demands that dielectric materials maintain low electrical conduction loss and high discharged energy density under thermal
High-power energy storage systems have important applications in electrical grid, electric vehicles, nuclear, aerospace, telecommunication, military, defense and medical
Cheng, S. et al. Polymer dielectrics sandwiched by medium-dielectric-constant nanoscale deposition layers for high-temperature capacitive energy storage. Energy Storage Mater. 42,
The development of computational simulation methods in high-temperature energy storage polyimide dielectrics is also presented. Finally, the key problems faced by using
Nowadays, with the development of hybrid electric vehicles, aerospace, underground oil and gas exploration, and other fields, the demand for high-temperature
The demand for high-temperature dielectric materials arises from numerous emerging applications such as electric vehicles, wind generators, solar converters, aerospace power
These excellent dielectric energy storage performances benefit from the introduction of molecular trapping centers which notably reduce the high-temperature
1. Introduction Commercial energy storage devices mainly include fuel cells, chemical batteries, supercapacitors and dielectric capacitors. Compared with batteries,
Here we report a molecular topology design for dielectric polymers with mechanical bonds that overcomes this obstacle, where cyclic polyethers are threaded onto the
Here, we demonstrate a polymer dielectric polynorbornene-imide (PNI) exhibits excellent energy storage performances at 250 °C owing to simultaneous large optical bandgap
This study used three typical high energy storage density materials and a traditional energy storage material to maximize the application effect of these materials.
Film capacitors are essential components used for electrical energy storage in advanced high-power electrical and electronic systems. High temperature environments place
In this review, the main physical mechanisms of polarization, breakdown, and energy storage in multilayer dielectric are introduced. The
Our findings demonstrate the potential of modified polyimides with alicyclic structures as high-temperature dielectric materials for practical applications.
Dielectric energy storage ceramics capacitors are universally applied in high voltage charging power systems, because of their ultra-high powder density, high operating
Excellent high-temperature energy storage films necessitate a high dielectric constant (εr) and breakdown strength (BDS). In the past, percolation theory has indicated that
This study puts forward a novel structural design combining the energy levels gradient with concentration gradient to optimise the high-temperature energy storage
These outcomes indicate the significant role of BZ fillers with well-designed chemical structure and energy band level in promoting the further application of high
Here, the authors report an all-polymer nanostructured dielectric material with high temperature capacitive energy storage performance.
Excellent dielectric temperature stability and energy storage properties with W rec of 4.03 J/cm 3 and η of 85.2 % under a medium electric field of 300 kV/cm were achieved in
Flexible dielectric composites stand as a promising candidate in high-power energy storage technology, but their practical application is
How to effectively improve the high-temperature energy storage performance of dielectrics has become a top priority for the further development of film capacitors.
This chapter first introduces the key characteristics and mechanisms of Polyimide (PI) dielectrics for high-temperature energy storage applications. It systematically
