Compact autonomous ultrahigh power density energy storage and power generation devices that exploit the spontaneous polarization of ferroelectric materials

Due to their large dielectric constants (on the order of ~100-1000), perovskite ferroelectrics have the potential to store or supply electricity of very high energy and power densities [1, 2]. A common approach to prepare perovskite ferroelectric films focus on achieving bulk-like properties, which usually requires a high processing

Thanks to their excellent compatibility with the complementary metal–oxide-semiconductor (CMOS) process, antiferroelectric (AFE) HfO2/ZrO2-based thin films have emerged as

1 Introduction Nowadays, dielectric thin-film capacitors, which can store and release ultralarge energy densities in an extremely short time, are extensively investigated for applications in pulsed-power electronic systems. [1-5] Such systems are used in many application fields, ranging from medical devices (such as pacemakers and

The electric field-dependent energy-storage density was fitted using an exponential function of E n, and it was found that n < 2. It was worth noting that the positive electrocaloric effect (ECE) was observed in x BiFeO 3 –(1 − x )BaTiO 3 bulk ceramics, no matter when directly measured using a thermocouple or indirectly calculated using the Maxwell relation.

(Bi 0.5 Na 0.5)TiO 3-based relaxor ferroelectrics with enhanced energy-storage density and efficiency under low/moderate - fields via average ionic polarizability design Author links open overlay panel Zepeng Wang a, Lixue Zhang a, Ruirui Kang b, Weijie Yang a, Liqiang He b, Pu Mao c, Xiaojie Lou b, Lin Zhang d, Jiping Wang a

Preparation of (Bi0.5Na0.5)1-xSrxTiO3 (BNST) ceramics with varying x to 0.1, 0.2 and 0.3 was conducted using solid-state method. The perovskite structure of BNST is observed for all compositions. The high dielectric constant (4000) at 100 kHz with high polarization (24 µC cm−2) of the prepared BNST ceramic has been obtained where high

Environmentally friendly lead-free dielectric ceramics have attracted wide attention because of their outstanding power density, rapid charge/dischargerate, and superior stability. Nevertheless, as a hot material in dielectric ceramic capacitors, the energy storage performance of Na0.5Bi0.5TiO3-based ceramics has been not satisfactory

So far, lead-based materials have still dominated the global energy storage market because of their outstanding energy storage performances. High recoverable energy storage density ( U rec ) and high efficiency ( η ) can be achieved simultaneously in lead-based antiferroelectric (AFE) thin films due to high polarization (

Puli, V. S. et al. Structure, dielectric, ferroelectric, and energy density properties of (1–x)BZT–xBCT ceramic capacitors for energy storage applications. J. Mater.

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 with other energy storage devices such as batteries and supercapacitors, the energy storage density of dielectric capacitors is low, which

We investigate the dielectric, ferroelectric, and energy density properties of Pb-free (1 − x)BZT–xBCT ceramic capacitors at higher sintering temperature (1600 °C). A significant increase in the dielectric constant, with relatively low loss was observed for the investigated {Ba(Zr0.2Ti0.8)O3}(1−x ){(Ba0.7Ca0.3)TiO3} x (x = 0.10,

3 · Realizing ultrahigh recoverable energy-storage density (Wrec) alongside giant efficiency (η) remains a significant challenge for the advancement of dielectrics in next

Electrostatic energy storage technology based on dielectrics is fundamental to advanced electronics and high-power electrical systems. Recently, relaxor ferroelectrics characterized by nanodomains have shown great promise as dielectrics with high energy density and high efficiency. We demonstrate substantial enhancements of

Compared to batteries and electrochemical capacitors, dielectric capacitors are widely studied because of their huge advantages in terms of charging/discharging speed and power density. In this work, high-entropy (Bi0.2Na0.2Sr0.2Ba0.2Ca0.2)TiO3 lead-free relaxor-ferroelectric ceramics were prepared by both conventional sintering (CS) and

ferroelectric polymers for high energy density and low loss dielectrics. Macromolecules 45, 2937–2954 (2012 S. S. Won, S. A. Chae, D. S. Lee, I. W. Kim, Antiferroelectric thin-film capacitors with

The insertion of a thin dielectric layer can significantly affect the energy-storage performance of a ferroelectric layer, and Pt/0.5Ba(Zr 0.2 Ti 0.8)O 3-0.5(Ba 0.7 Ca 0.3)TiO 3 /HfO 2:Al 2 O 3 (HAO)/Au capacitors show an

Ferroelectric polymers are being actively explored as dielectric materials for electrical energy storage applications. However, their high dielectric constants and outstanding energy densities are

Nowadays, it is urgent to explore advanced and eco-friendly energy storage capacitors based on lead-free relaxor ferroelectric (RFE) ceramics in order to meet the ever-increasing requirements in pulsed power systems. BaTiO 3 (BT)-based RFE ceramics are considered as ones of the best high-temperature energy storage materials

The KNN-H ceramic exhibits excellent comprehensive energy storage properties with giant Wrec, ultrahigh η, large Hv, good temperature/frequency/cycling

Various types of dielectric materials can be potential candidates for energy storage, including antiferroelectrics (AFEs) 10,11,12, relaxor ferroelectrics (RFEs) 13,14, normal ferroelectrics (FEs

High energy-storage capability and electric breakdown strength are critical elements in next-generation pulse-power dielectric capacitors. In this report, perovskite (Bi 0.7 Ba 0.3) 1−x Na x (Fe 0.7 Ti 0.3) 1−x Ta x O 3 relaxor ferroelectric ceramics (x = 0–0.3) were tailored in terms of configuration entropy from a medium

Energy storage capacitors are attracting much attention owing to their ultrahigh power density and ultrafast discharge speed. However, it is challenging to overcome the trade-off between energy

BaTiO3 ceramics are difficult to withstand high electric fields, so the energy storage density is relatively low, inhabiting their applications for miniaturized and lightweight power electronic devices. To address this issue, we added Sr0.7Bi0.2TiO3 (SBT) into BaTiO3 (BT) to destroy the long-range ferroelectric domains. Ca2+ was introduced

T1 - Ultrahigh Energy Storage Density in Glassy Ferroelectric Thin Films under Low Electric Field AU - Sun, Yunlong AU - Zhang, Le AU - Huang, Qianwei AU - Chen, Zibin AU - Wang, Dong AU - Seyfouri, Mohammad Moein AU - Chang, Shery L.Y.

The sample of x=0.05 (PLHT-0.05) exhibits excellent energy storage properties with a record-high recoverable energy storage density of 11.2 J/cm³, and a high energy efficiency of 88.9% achieved

By the deliberate design of entropy, we therefore realize a higher energy density of 178.1 J cm −3 and an efficiency of 80.5% in relaxor ferroelectrics. Fig. 1: Enhancing the relaxor properties

DOI: 10.1109/SPAWDA60286.2023.10412334 Corpus ID: 267338536 The Effect of Ultrafine Ferroelectric Material Grain Size on Energy Storage Density @article{Zhang2023TheEO, title={The Effect of Ultrafine Ferroelectric Material Grain Size on Energy Storage Density}, author={Xiaodong Zhang and Jidong Liu and Yang Zhang and Xiaobao Tian and Lianhua

1. Introduction In recent decades, particular attentions have been drawn for the ferroelectric capacitors, which have been widely investigated as promising candidates for energy storage devices because their high energy density and fast charge-discharge capabilities [[1], [2], [3]].].

Hence, an anti-ferroelectric (AFE) material with similar energy density is safer for energy storage than linear dielectrics. Furthermore, since glass possesses a poor level of polarizability, the application of a high electric field (in the order of ~10–12 MV/cm) is required to store utilizable energy [ 21 ].

Superior energy-storage capacitors with simultaneously giant energy density and efficiency using nanodomain engineered BiFeO 3-BaTiO 3-NaNbO 3 lead