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Enhanced dielectric breakdown strength and energy storage density in lead-free relaxor ferroelectric ceramics

Lead-free relaxor ferroelectric ceramics have been widely explored for high power energy storage applications because of their high polarization saturation and low remnant polarization. However, lead-free relaxor ceramics with the bulk form exhibit low recoverable energy storage density ( W rec < 2 J cm −3 ) owing to low dielectric

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Realizing Outstanding Energy Storage Performance in KBT‐Based

This study develops a novel composition, 0.83KBT-0.095Na 1/2 Bi 1/2 ZrO 3-0.075 Bi 0.85 Nd 0.15 FeO 3 (KNBNTF) ceramics, demonstrating outstanding energy

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A new strategy to realize high comprehensive energy storage properties in lead-free bulk ceramics

Lead-free bulk ceramics have attracted increasing interest for electrical energy storage in pulsed power systems because of their superior mechanical properties, environment-friendliness, high power density and fast charge/discharge rate. Although considerable efforts have been made to design a large amount

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Capacitive energy storage performance of lead-free sodium niobate-based antiferroelectric ceramics

Ceramic-based capacitors have attracted great interest due to their large power density and ultrafast charge/discharge time, which are needful properties for pulsed-power devices. Antiferroelectric ceramics normally show ultrahigh energy density and relatively low efficiency, which is ascribed to the electric field-induced

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Aliovalent A-site engineered AgNbO3 lead-free antiferroelectric ceramics toward superior energy storage

Lead-free dielectric capacitors with high energy storage density and temperature-insensitive performance are pivotal to pulsed power systems. In this work, a pronounced recoverable energy storage density (Wrec) was achieved in AgNbO3-based lead-free antiferroelectric ceramics, by aliovalent A-site Sm mediati

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Microstructure-driven excellent energy storage NaNbO3-based lead-free ceramics

In 2019, Zhou et al. received a huge increase in η of 90.8% and W rec of 3.41 J/cm 3 in NN-based ceramics by SPS [ 14 ]. More recently, Tan et al. investigated the effect of sintering temperature of SPS on the energy storage properties in 0.76NaNbO 3 -0.24Sr 0.7 Bi 0.2 TiO 3 ceramics and an ultrahigh W rec of 3.41 J/cm 3 together with a

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Significantly enhanced energy storage density in lead-free barium strontium titanate-based ceramics

In this study, the storage performance of lead-free ceramics was optimized by constructing (1 − x)(Ba 0.8 Sr 0.2)TiO 3 –xBi(Zn 2/3 Ta 1/3)O 3 ceramics using a cooperative optimization strategy. This strategy involved utilizing Bi(Zn 2/3 Ta 1/3 )O 3 to induce polar nano-regions, contributing to an increase in E b and a reduction in P r,

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Toward high-end lead-free ceramics for energy storage:

Grain size engineered lead-free ceramics with both large energy storage density and ultrahigh mechanical properties

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Enhanced energy-storage performances in lead-free ceramics

BF-based ceramic materials are considered as potential lead-free energy storage materials due to their theoretical high saturation polarization intensity and high Curie temperature [25, 26]. However, the volatilization temperature of Bi 2 O 3 is low (∼825 °C), and the actual sintering temperature is often much higher than this temperature.

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Boosting Energy Storage Performance of Lead-Free Ceramics via

Owing to the current global scenario of environmental pollution and the energy crisis, the development of new dielectrics using lead-free ceramics for application in advanced electronic and energy storage systems is essential because of the high power density and excellent stability of such ceramics. Unfortunately, most of them have low breakdown

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Energy storage performance of NaNbO3 lead-free dielectric ceramics

Energy storage performance of NaNbO 3 lead-free dielectric ceramics by doping Sr(Mg 1/3 Sb 2/3)O 3 † Qinpeng Dong, a Peng Nong, a Yue Pan, a Dafu Zeng, a Mingzhao Xu, a Huanfu Zhou, a Xu Li * a and Xiuli Chen * a

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Lead-Free Relaxor Ferroelectric Ceramics with Ultrahigh Energy Storage

One of the long-standing challenges of current lead-free energy storage ceramics for capacitors is how to improve their comprehensive energy storage properties effectively, that is, to achieve a synergistic improvement in the breakdown strength (E b) and the difference between maximum polarization (P max) and remnant polarization (P r),

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Lead‐free (K,Na)NbO3‐based ceramics with high optical transparency and large energy storage

Highly transparent lead-free (1-x)K 0.5 Na 0.5 NbO 3 –xSr(Zn 1/3 Nb 2/3)O 3 (KNN–xSZN) ferroelectric ceramics have been synthesized via a conventional pressureless sintering method. All samples are optically clear, showing high transmittance in the visible and near-infrared regions (~70% and ~80% at 0.5 mm of thickness, respectively).

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High-performance lead-free bulk ceramics for electrical energy

Here, we present an overview on the current state-of-the-art lead-free bulk ceramics for electrical energy storage applications, including SrTiO 3, CaTiO 3, BaTiO

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Boosting energy-storage performance in lead-free ceramics via

Novel sodium niobate-based lead-free ceramics as new environment-friendly energy storage materials with high energy density, high power density, and excellent stability ACS Sustainable Chem Eng, 6 ( 2018 ), pp. 12755 - 12765

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Toward high-end lead-free ceramics for energy storage: Na0.5Bi0.5TiO3-based relaxor ferroelectrics with simultaneously enhanced energy

Toward high-end lead-free ceramics for energy storage: Na 0.5 Bi 0.5 TiO 3-based relaxor ferroelectrics with simultaneously enhanced energy density and efficiency Author links open overlay panel Qibin Yuan a, Shili Zhan b, Yixuan Li a, Yifei Wang c, Haibo Yang d, Jia-Jun Zhou e, Zhao Li f, Hongmei Jing g, Fang-Zhou Yao h i, Tao Lei a

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Optimized energy storage properties of Bi0.5Na0.5TiO3-based lead-free ceramics by composition regulation,Ceramics

Optimized energy storage properties of Bi0.5Na0.5TiO3-based lead-free ceramics by composition Ceramics International ( IF 5.1) Pub Date : 2024-02-27, DOI: 10.1016/j.ceramint.2024.02.329

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Composition and Structure Optimized BiFeO3 -SrTiO3 Lead-Free Ceramics with Ultrahigh Energy Storage

Both energy density and efficiency exhibit excellent stability over the frequency range of 1-100 Hz and temperatures up to 120 °C, along with the superior power density of 280 MW cm-3, making the studied BiFeO3 -SrTiO3 ceramics potentially useful for high-power energy storage applications. Dielectric ceramic capacitors have attracted

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Ultrahigh Energy-Storage Performances in Lead-free Na0.5Bi0.5TiO3-Based Relaxor Antiferroelectric Ceramics

Dielectric ceramics with outstanding energy-storage performances are nowadays in great demand for pulsed power electronic systems. Here, we propose a synergistic design strategy to significantly enhance the energy-storage properties of (1 – x)(0.94Na0.5Bi0.5TiO3-0.06BaTiO3)-xCaTi0.75Ta0.2O3 solid solution ceramics through

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Realizing superior energy storage properties in lead-free ceramics

Based on the principle of sustainable development theory, lead-free ceramics are regarded as an excellent candidate in dielectrics for numerous pulsed power capacitor applications due to their outstanding thermal stability and environmental friendliness. However, the recoverable energy storage density (Wrec)

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Boosting Energy Storage Performance of Lead‐Free Ceramics via

Owing to the current global scenario of environmental pollution and the energy crisis, the development of new dielectrics using lead-free ceramics for

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Energy‐Storage Properties of 0.89Bi0.5Na0.5TiO3–0.06BaTiO3–0.05K0.5Na0.5NbO3 Lead‐Free Anti‐ferroelectric Ceramics

Energy-storage properties of 0.89Bi0.5Na0.5TiO3–0.06BaTiO3–0.05K0.5Na0.5NbO3 (0.89BNT–0.06BT–0.05KNN) lead-free ceramics were first investigated. Measurements of dielectric properties together with switching current curves indicate a rather diffuse ferroelectric (FE) to anti-ferroelectric

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Microstructure and ferroelectric properties of Nb2O5-modified BiFeO3-BaTiO3 lead-free ceramics for energy storage

The electrical resistivity of BFO-BT ceramic was increased remarkably by Nb 2 O 5. The polarization behaviors could be detected at room temperature and the P r values were very low.The effects of Nb 2 O 5 addition on microstructures, dielectric breakdown strength, and energy storage properties of BiFeO 3-BaTiO 3 (BF-BT)

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Boosting energy-storage performance in lead-free ceramics via

For practical applications of pulsed capacitors, environmentally friendly (lead-free) energy storage ceramics with the combined benefits of high recoverable

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Progress and outlook on lead-free ceramics for energy storage

This review summarizes the progress of these different classes of ceramic dielectrics for energy storage applications, including their mechanisms and strategies

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Potassium–sodium niobate based lead-free ceramics:

The development of lead-free bulk ceramics with high recoverable energy density (W rec) is of decisive importance for meeting the requirements of advanced pulsed power capacitors toward

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MnO2 doping enhances energy storage performances in lead-free BiFeO3-based ceramics

Compared with the previous work without adding MnO 2, the BDS of the optimum ceramic is improved from 206 kV/cm to 239 kV/cm due to the reduced leakage current, the refined grain size, and the broaden energy gap. The polarization saturation is also delayed due to the increase in BDS.

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Boosting energy-storage performance in lead-free ceramics via

The optimized 0.21NN-0.79NBT ceramic exhibited recoverable energy storage density of ≈2.84 J·cm −3 at 180 kv·cm −1 with energy storage efficiency of 78%. Structural characterization indicated the existence of intermediate phases modulation phases with coexisting antiferroelectric phase and relaxation ferroelectric phase.

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High energy storage efficiency of NBT-SBT lead-free ferroelectric ceramics

Zhang et al. prepared an energy density of 1.91 J/cm 3 and an energy efficiency of 86.4% in Na 0·5 Bi 0·5 TiO 3 –BaSnO 3 binary solid solution [ 13 ]. Additionally, another typical relaxor ferroelectric, the (Sr 0·7 Bi 0.2 )TiO 3 (SBT) ceramic, has large maximum polarization ( Pmax) compared to paraneoplastic ceramics such as SrTiO 3 (ST).

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Perspectives and challenges for lead-free energy-storage

In this review, we present perspectives and challenges for lead-free energy-storage MLCCs. Initially, the energy-storage mechanism and device

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Realizing superior energy storage properties in lead-free ceramics

Based on the principle of sustainable development theory, lead-free ceramics are regarded as an excellent candidate in dielectrics for numerous pulsed power capacitor applications

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Giant energy-storage density with ultrahigh efficiency in lead-free

Here, the authors propose a high-entropy strategy to design "local polymorphic distortion" in lead-free ceramics, achieving high energy storage performance.

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