Request PDF | Energy storage performance of BaTiO3-based relaxor ferroelectric ceramics prepared through a two-step process | As the industrial pillar of electronic ceramics, BaTiO3 ceramic is ...
In terms of advances in technology, especially electronic devices for human use, there are needs for miniaturization, low power, and flexibility. However, there are problems that can be caused by these changes in terms of battery life and size. In order to compensate for these problems, research on energy harvesting using environmental …
An atomistic effective Hamiltonian technique is used to investigate the finite-temperature energy storage properties of a ferroelectric nanocomposite …
Dielectric capacitors with high energy storage performances are exceedingly desired for the next-generation advanced high/pulsed power devices that demand miniaturization and integration. However, poor energy-storage density (U rec) and low efficiency (η) resulted from the large remanent polarization (P r) and low breakdown …
Dielectric energy storage capacitors are receiving a great deal of attention owing to their high energy density and fast charging–discharging speed. The current energy storage density of dielectrics is relatively low and cannot meet the requirements of miniaturization of pulsed power equipment. Therefore, increasing the energy storage …
Here, we focus on recent progress and achievements on optimizing perovskite relaxor ferroelectrics toward better energy storage capability through …
An atomistic effective Hamiltonian technique is used to investigate the finite-temperature energy storage properties of a ferroelectric nanocomposite consisting of an array of …
Considering ferroelectric domain switching dynamics, the influences of ferroelectric (FE) parameters on ferroelectric field-effect transistor (FeFET) characteristics are thoroughly investigated and simulated. It is shown that both remanent polarization and coercive field of FE have non-monotonic relationships with the subthreshold swing (SS) and hysteresis of …
Moreover, the atomic-scale microstructural study confirms that the excellent comprehensive energy storage performance is attributed to the increased …
Ferroelectric ceramic capacitors have potential advantages in energy storage performance, such as high energy storage density and fast discharge speed, making them widely applicable in different energy storage devices. During heat treatment, ferroelectric ...
Pb 0·85 La 0·10 Zr 0·60 Ti 0·40 O 3 ferroelectric ceramic system was synthesized via the conventional solid-state reaction sintering route. A systematic study on the pyroelectric response, electrocaloric effect and energy storage properties has been carried out in a ...
(a) Energy storage performance parameters (W c, W rec and η) as functions of the applied electric field for the BT-CBT film, (b) comparison of W rec at the maximum applicable electric field between this work and …
The present work reports for the first time, the employment of ferroelectric ZrO2 films as energy storage capacitors utilized in pulsed power systems. Furthermore, the effect of ...
The relationship among structure, relaxor behavior and properties is discussed. • Switching from ferroelectric to relaxor is realized through Sb doping in B-sites. • The ceramics possesses a superior W rec of 2.27 J/cm 3 and an ultrahigh η of 93.3%.x = 0.3 sample displays a high C D (1166.56 A/cm 2) and a large P D (118.54 MW/cm 3).
In the past years, several efforts have been devoted to improving the energy storage performance of known antiferroelectrics. Polymers and ceramic/polymer composites can present high breakdown fields but store modest energy densities and typically suffer from ...
Renewable energy can effectively cope with resource depletion and reduce environmental pollution, but its intermittent nature impedes large-scale development. Therefore, developing advanced technologies for energy storage and conversion is critical. Dielectric ceramic capacitors are promising energy storage technologies due to their …
The polymorphism in ferroelectric doped HfO 2 and HZO films is determined by several factors that influence the free energy of the phases and the activation barriers between them. These factors ...
However, the relationship between the composition and the energy storage capability has not been studied in relaxor PLZT. In this work, we systematically investigated the effects of the Zr/Ti ratio on the relaxor behavior and …
This section discusses the impact of each parameter in the energy storage performance. 3.1. Polarization change (ΔP = P m - P r) factor The energy storage performance of a dielectric capacitor is intrinsically linked to …
In the present work, the synergistic combination of mechanical bending and defect dipole engineering is demonstrated to significantly enhance the energy storage …
To estimate the dielectric behavior of PLZT with diffuse phase transition, we used the modified Curie–Weiss law to fit the temperature-dependent dielectric permittivity [29]: (1) 1 ε r − 1 ε m = (T − T m) γ 2 ε m δ 2 (1 ≤ γ ≤ 2) where ε m is the maximum permittivity at T m, δ is a shape parameter, and γ (1≤γ≤2) is the dispersion factor …
1. Introduction High-entropy perovskite ferroelectric ceramics have excellent temperature stability, low dielectric loss, good dielectric properties, and simple structure, and currently have good application prospects in the field of energy storage dielectrics [[1], [2], [3], [4]].].
The parameters related to the energy storage properties of ceramics, are including total energy density (W), recoverable energy density (W rec), energy loss (W loss), and energy storage efficiency (η), which can …
Lead-free ceramics with excellent energy storage performance are important for high-power energy storage devices. In this study, 0.9BaTiO3-0.1Bi(Mg2/3Nb1/3)O3 (BT-BMN) ceramics with x wt% ZnO-Bi2O3-SiO2 (ZBS) (x = 2, 4, 6, 8, 10) glass additives were fabricated using the solid-state reaction method. X-ray diffraction …
Accordingly, a giant W rec ≈13.3 J cm −3 and a high η ≈78% at 66.4 kV mm −1 can be simultaneously achieved in the lead-free high-entropy BiFeO 3-based ceramic, …
Abstract Enhancing the efficacy of energy storage materials is crucial for advancing contemporary electronic devices and energy storage technologies. This research focuses on boosting the energy storage capabilities of BaTiO3 ceramics through Mg2+ doping. Introducing Mg2+ ions into the BaTiO3 lattice induces defects and grain …
To maintain the significant development of the ecological society, proper attention on Bi0.5Na0.5TiO3 (BNT) based perovskites has been directed toward the analysis of electrical energy storage in past decades. This article aims to provide a comprehensive analysis of lead-free BNT based materials for piezoelectric detectors, sensors, shape …
[97][98][99][100] However, by using AAO and self-rolling up structures for capacitor packing, could not substantially improve the dielectric energy storage for the dielectric of Al 2 O 3 ...
This work demonstrates remarkable advances in the overall energy storage performance of lead-free bulk ceramics and inspires further attempts to achieve …
The present work highlights an attempt of fabricating a nanocomposite by the addition of multi-walled carbon nanotubes (MWCNTs) as a third phase into flexible ZnO–poly(vinylidene fluoride) (ZnO–PVDF) composites. MWCNTs played a very important role in distributing ZnO fillers in the PVDF matrix more homogeneo
High-performance ferroelectric materials are used in many applications, ranging from actuators to capacitors ... transducers and energy storage capacitors. Traditional engineering strategies ...
Consequently, the parameters of total discharged energy storage density (W total), W rec and η to assess the energy storage performance can be indirectly obtained via the polarization-electric field (P-E) loops based on …
Relaxor ferroelectrics are promising candidates for pulsed power dielectric capacitor applications because of their excellent energy-storage properties. Different from most relaxor ferroelectrics whose energy-storage density was improved by increasing the breakdown strength and reducing the remanent polariza
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