Flexible high-temperature dielectric materials from polymer nanocomposites

  title={Flexible high-temperature dielectric materials from polymer nanocomposites},
  author={Qi Ming Li and Lei Chen and Matthew R. Gadinski and Shujun Zhang and Guangzu Zhang and Haoyu Li and Elissei Iagodkine and Aman Haque and Long-Qing Chen and Thomas N. Jackson and Qing Wang},
Dielectric materials, which store energy electrostatically, are ubiquitous in advanced electronics and electric power systems. Compared to their ceramic counterparts, polymer dielectrics have higher breakdown strengths and greater reliability, are scalable, lightweight and can be shaped into intricate configurations, and are therefore an ideal choice for many power electronics, power conditioning, and pulsed power applications. However, polymer dielectrics are limited to relatively low working… Expand
Sandwich-structured polymer nanocomposites with high energy density and great charge–discharge efficiency at elevated temperatures
The rationally designed sandwich-structured polymer nanocomposites are capable of integrating the complementary properties of spatially organized multicomponents in a synergistic fashion to raise dielectric constant, and subsequently greatly improve discharged energy densities while retaining low loss and high charge–discharge efficiency at elevated temperatures. Expand
Materials science: Composite for energy storage takes the heat
  • H. Ploehn
  • Materials Science, Medicine
  • Nature
  • 2015
It is demonstrated that the addition of boron nitride nanosheets to polymer nanocomposites increases heat dissipation properties, resulting in dielectric materials that operate at much higher working temperatures than previously possible with polymer dielectrics. Expand
Flexible Dielectric Nanocomposites with Ultrawide Zero-Temperature Coefficient Windows for Electrical Energy Storage and Conversion under Extreme Conditions.
It is demonstrated hybrid carbon filler based composites can exhibit a zero-temperature coefficient window of 200 °C (from -50 to 150 °C), the widest 0TC window for all polymer composite dielectrics reported to date. Expand
Current status of polymer nanocomposite dielectrics for high-temperature applications
Abstract Polymer dielectrics possess the advantages of excellent mechanical properties, high dielectric breakdown strength and good processability, their dielectric properties at elevatedExpand
Polymer Nanocomposites Dielectrics for Energy Applications
Dielectric capacitors have been the major enabler for many applications in advanced electronic and electrical power systems due to their capability of ultrafast charging–discharging and ultrahighExpand
High-Performance Polymers Sandwiched with Chemical Vapor Deposited Hexagonal Boron Nitrides as Scalable High-Temperature Dielectric Materials.
This work demonstrates a general and scalable pathway to enable the high-temperature capacitive energy applications of a wide range of engineering polymers and also offers an efficient method for the synthesis and transfer of 2D nanomaterials at the scale demanded for applications. Expand
Multilayered ferroelectric polymer composites with high energy density at elevated temperature
Abstract Ferroelectric polymers have been widely explored for film capacitor applications due to their high energy storage densities that are almost an order of magnitude greater than those of theExpand
Polymer/molecular semiconductor all-organic composites for high-temperature dielectric energy storage
It is shown that all-organic composites containing high-electron-affinity molecular semiconductors exhibit excellent capacitive performance at 200 °C, which is crucially important for their successful commercialization and practical application in high-temperature electronics and energy storage devices. Expand
Ultrahigh discharge efficiency and energy density achieved at low electric fields in sandwich-structured polymer films containing dielectric elastomers
A sandwich-structured film is capable of an ultra-high efficiency of 89% with an energy density of 11.8 J cm−3 at a low field of 300 MV m−1.
Flexible mica films for high-temperature energy storage
Abstract Dielectrics used for energy storage are highly desired for power electronics and pulse power applications and the polymer capacitors are the main commercial ones available. The developmentExpand


High temperature polymer film dielectrics for aerospace power conditioning capacitor applications
Abstract Polymer dielectrics are the preferred materials of choice for capacitive energy-storage applications because of their potential for high dielectric breakdown strengths, low dissipationExpand
Solution-processed ferroelectric terpolymer nanocomposites with high breakdown strength and energy density utilizing boron nitride nanosheets
The development of high-performance capacitive energy storage devices is of critical importance to address an ever-increasing electricity need. The energy density of a film capacitor is determined byExpand
High-Temperature Capacitor Polymer Films
Film capacitor technology has been under development for over half a century to meet various applications such as direct-current link capacitors for transportation, converters/inverters for powerExpand
High field conduction in heat resistant polymers at elevated temperature for metallized film capacitors
  • J. Ho, T. Jow
  • Materials Science
  • 2012 IEEE International Power Modulator and High Voltage Conference (IPMHVC)
  • 2012
Improved high temperature polymeric dielectrics are in demand for applications such as hybrid electric vehicles, advance aircraft, and deep oil/gas well drilling. Metallized polymeric film capacitorsExpand
High‐Energy Density Capacitors Utilizing 0.7 BaTiO3–0.3 BiScO3 Ceramics
A high, temperature-stable dielectric constant ( ~ 1000 from 0° to 300°C) coupled with a high electrical resistivity (~10 12 Ω · cm at 250°C) make 0.7 BaTiO 3 -0.3 BiScO 3 ceramics an attractiveExpand
Capacitors : Pulsed powder science and technology
Over the last decade, significant increases in capacitor performance, especially in reliability and energy/power densities, have been achieved for energy discharge applications in plasma science andExpand
Flexible nanodielectric materials with high permittivity for power energy storage.
This review first outlines the crucial issues in the nanodielectric field and then focuses on recent remarkable research developments in the fabrication of FNDMs with special constitutents, molecular structures, and microstructures. Expand
Advanced Dielectrics for Capacitors
The demand for smaller and lighter capacitors with higher temperature capability is increasing in the power electronic industry and military arena. This article reviews existing capacitorExpand
Film Capacitors for Automotive and Industrial Applications
The demand for energy savings and for alternative energy sources has called for an accelerated introduction of products such as Hybrid Electric Vehicles, Solar Converters, and Wind Generators. A DCExpand
A Dielectric Polymer with High Electric Energy Density and Fast Discharge Speed
It is demonstrated that a very high energy density with fast discharge speed and low loss can be obtained in defect-modified poly(vinylidene fluoride) polymers by combining nonpolar and polar molecular structural changes of the polymer with the proper dielectric constants. Expand