This article presents an overview of recent progress in the field of nanostructured dielectric materials targeted for high-temperature capacitive energy storage applications. Polymers, polymer nanocomposites, and bulk ceramics and thin films are the focus of the materials reviewed. Both commercial products and the latest research results are

Glassy polymer dielectrics exhibit significant advantages in energy storage density and discharge efficiency; however, their potential application in thin-film capacitors is limited by the complexity of the production process, rising costs, and processing challenges arising from the brittleness of the material. In this study, a small

High-temperature polyimide dielectric materials for energy storage: theory, design, preparation and properties Xue-Jie Liu a, Ming-Sheng Zheng * a, George Chen b, Zhi-Min Dang * c and Jun-Wei Zha * ad a School of Chemistry and Biological Engineering, University of Science & Technology Beijing, Beijing 100083, P. R. China.

In addition, the discharge energy density reached 73mJ/cm3 under an electric field of 300kV/cm, and charge–discharge energy conversion efficiency was up to 84%. More importantly, the electrically actuated displacement of 2.61mm at electric field of 160kV/cm was 1.7 times greater than that of untreated composites.

In the past decade, numerous strategies based on microstructure/mesoscopic structure regulation have been proposed to improve the

storage properties up to 5 106 charging/discharging cycles with a large Urec of ~56. J/cm 3 and a η of ~90% at 7.2 MV/cm. In summary, this study has provided a new playground for dielectric

For single dielectric materials, it appears to exist a trade-off between dielectric permittivity and breakdown strength, polymers with high E b and ceramics with high ε r are the two extremes [15]. Fig. 1 b illustrates the dielectric constant, breakdown strength, and energy density of various dielectric materials such as pristine polymers,

Among various dielectric materials, polymers have remarkable advantages for energy storage, such as superior breakdown strength (E b) for high-voltage operation, low dissipation factor (tanδ,

Enhancing the energy storage performance of dielectric material through the adoption of a novel domain strategy is highly desirable. In this study, Bi 0.5 Na 0.5 TiO 3-based thin films are fabricated with topological vortex domains (VDs) by controlling the grain size and investigated the correlation between these VDs and the macroscopic polarization

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In this paper, we first introduce the research background of dielectric energy storage capacitors and the evaluation parameters of energy storage performance. Then, the

Request PDF | On Jan 11, 2019, Yujuan Niu and others published Dielectric Nanomaterials for Power Energy Storage: Surface Modification and Characterization | Find, read and cite all the research

The energy storage performances for PEI and PEI/PEEU blends are characterized by testing D-E unipolar hysteresis curves, as depicted in Figs. S7 and S8.Accordingly, the discharged energy density (U e) and charge‒discharge efficiency (η) can be calculated by U e = ∫ D r D max E d D and η = ∫ D r D max E d D / ∫ 0 D max E d

Electrostatic capacitors are among the most important components in electrical equipment and electronic devices, and they have received increasing attention over the last two decades, especially in the fields of new energy vehicles (NEVs), advanced propulsion weapons, renewable energy storage, high-voltage transmission, and medical

The modification methods used to improve room-temperature energy storage performance of polymer films are detailedly reviewed in categories. Additionally, this review studies the high-temperature energy storage of polymer films from three perspectives: molecular modification, doping engineering and multilayer design.

Polymers and polymer-based micro- or nanocomposites are dielectric materials exhibiting relaxation processes, originating from the macromolecular motion and the presence of additives. Energy density is a function of dielectric permittivity, and thus materials with high permittivity can store enhanced amounts of energy at constant field

Compared to PP and PVDF based ferroelectric materials, PI is a typical HT dielectric [197]. The HT energy storage capability of PI can be greatly enhanced by the

Thus, the implementation of dielectric materials for high-energy-density applications requires the comprehensive understanding of both the materials design and processing. The optimization of high-energy-storage dielectrics will have far-reaching impacts on the sustainable energy and will be an important research topic in the near future.

The energy storage efficiency increases from 56.8% to 74.1%, while a high energy density of ∼20 J/cm3 is maintained under an electric field of 1200 kV/cm. Additionally, the operating frequencies

This article presents the effect of lead-borosilicate glass (65PbO 20B 2 O 3 15SiO 2, mol%) (PBS) addition on the structure, microstructure, dielectric, ferroelectric and energy storage properties of Ba 0.9995 La 0.0005 TiO 3 (BLT) ceramics system has been systematically investigated.

5 · Furthermore, this nanocomposite also demonstrates satisfactory high-temperature energy storage performances, achieving a U e of 7.36 J cm −3 and an η of

New materials with high recoverable energy storage densities become highly desirable. Here, by structure evolution between fluorite HfO2 and perovskite hafnate, we create an amorphous hafnium-based oxide that exhibits the energy density of ~155 J/cm3 with an efficiency of 87%, which is state-of-the-art in emergingly capacitive energy-storage

Our official English website,, welcomes your feedback! (Note: you will need to create a separate account there.) Optimized dielectric energy storage performance in ZnO-modified Bi0.5Na0.5TiO3-Sr0.7Bi0.2 0.1TiO3 ceramics with

This Collection brings together articles discussing different dielectrics, including polymers, nanocomposites, bulk ceramics, and thin films, for energy storage applications.

Ceramic-based energy storage dielectrics and polymer–polymer-based energy storage dielectrics are comprehensively summarized and

Exploring low content of nano-sized fillers to enhance dielectric energy storage can minimize the process difficulty in dielectric film manufacturing. This review

Effects of PbO Content on the Dielectric Properties and Energy Storage Performance of (Pb0.97La0.02)(Zr0.97Ti0.03)O3 Antiferroelectric Thin Films. Journal of the American Ceramic Society, Vol. 94, Issue. 6, p. 1647.

The performances of dielectric capacitors are evaluated by recoverable energy storage density (U re) and efficiency (η), which can be deduced from the polarization–electric field (P–E) hysteresis loops: U re = ∫ P r P max E d P, η = U re /U st, where P max, P r, and U st are the maximum polarization, remanent polarization, and the

In this work, PI was chosen as polymer matrix, PI composite films embedded with BaTiO3 were prepared by in-situ polymerization. BaTiO3 nanofillers were modified with paraffin to form a core–shell structure in order to improve the dispersion and compatibility with PI matrix. The permittivity of paraffin@BT/PI composite films with 40

Nowadays,the energy storage density of the lead-free perovskite structure film prepared by magnetron sputtering or laser pulse deposition is as high as 100 J/cm~3 or more. However,due to the many methods of preparing the film and the complicated process

1. Introduction. Polymer dielectric materials have been widely used in 5G base stations, integrated chips, electromagnetic weapons, etc., due to their advantages of good flexibility, easy processing, high breakdown strength, and high-power density [1, 2].However, the relatively low dielectric constant and energy storage density of

Our official English website,, welcomes your feedback! (Note: you will need to create a separate account there.) Langmuir–Blodgett assisted alignment of 2D nanosheets in polymer nanocomposites for high-temperature dielectric

Figs. 3 and S5 present the temperature-dependent dielectric response of Bi 5-x La x Ti 3 AlO 15 films. The pure Bi 5 Ti 3 AlO 15 films with x = 0 in Fig. 3 a exhibit the peculiar features of the relaxors [32, 33].These include: (Ⅰ) The permittivity ε r and dielectric loss tanδ behave frequency dispersion due to the thermally activated domain

As can be seen in Fig. 2, the carrier traps near the LUMO and HOMO levels are electron traps and hole traps, respectively addition, the deep traps are close to the Fermi level, while the shallow traps are close to the LUMO or HOMO level. Fig. 2 shows the DOS plot of the disordered polymer dielectric, where the deep traps and the shallow

The commercial capacitor using dielectric biaxially oriented polypropylene (BOPP) can work effectively only at low temperatures (less than 105 C). Polyphenylene oxide (PPO), with better heat resistance and a higher dielectric constant, is promising for capacitors operating at elevated temperatures, but its charge–discharge efficiency (η) degrades greatly under

Our official English website,, welcomes your feedback! (Note: you will need to create a separate account there.) Stereoisomerically enhanced polynorbornene-imide dielectric energy storage performance

Dielectric capacitors with a high operating temperature applied in electric vehicles, aerospace and underground exploration require dielectric materials with high temperature resistance and high energy

The 9 : 1 composite dielectric at 150 °C demonstrates an energy storage density of up to 6.4 J cm −3 and an efficiency of 82.7%. This study offers a promising candidate material and development direction for the next-generation energy storage capacitors with broad application prospects.

Energy storage density (ESD) values are regularly assessed for AFE and AFE-like, FE, and dielectric (DE) thin films. The reason for the "AFE-like" nomenclature in this work is the current lack of consensus of the physical origins of the hysteresis "double loop" characteristic of AFEs. 6–10 The most prevalent theory behind the AFE behavior is

Doping the PVDF-TrFE composite film with 3 wt% BZT-0.6BCT increased its energy storage density to 14.2 J·cm −3. When the doped ceramic fibers were coated with the TiO 2 core-shell of ~75 nm, the composite film exhibits improved breakdown field strength ( E b ) of 365 kV mm −1, enhanced energy storage density ( U e ) of 18.71 J·cm −3, and

Dielectric characteristics of poly(ether ketone ketone) for high temperature capacitive energy storage

1. Introduction. There has been recent progress made in the generation of renewable energy via the use of wind and solar power. Due to the cyclical nature of such production and consumption needs, it is essential to create innovative, economical, and environmentally friendly energy-conversion and storage technologies, such as batteries,

It is a key challenge and of great significance to develop dielectric ceramic capacitors with high energy-storage density within a wide operate temperature range. In this work, the effect of the Bi(Mg0.5Zr0.5)O3 addition on the dielectric and energy-storage properties of lead-free Ba0.8Sr0.2TiO3 ceramics was systematically studied.