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Dielectric ceramics with good temperature stability and excellent energy storage performances are in great demand for numerous electrical energy storage applications. In this work, xSm doped 0.5Bi 0.51 Na 0.47 TiO 3 –0.5BaZr 0.45 Ti 0.55 O 3 (BNT–BZT − xSm, x = 0–0.04) relaxor ferroelectric lead-free ceramics were synthesized
Dielectric capacitors, although presenting faster charging/discharging rates and better stability compared with supercapacitors or batteries, are limited in
Synthesized pure phase NBT-SBT ceramics with varying MgNb 2 O 6. Small additions of MgNb 2 O 6 reduced polarization hysteresis while boosting energy storage potential. Achieved a 1.5 J cm⁻ 1 energy storage density with stable efficiency (83–95 %) and less than 10 % fluctuation.
The high-energy storage density reported in lead-free AgNbO 3 ceramics makes it a fascinating material for energy storage applications. The phase transition process of AgNbO 3 ceramics plays an important role in its properties and dominates the temperature and electric field dependent behavior.
Energy storage performance of KNN-H relaxor ceramics Ultrahigh comprehensive energy storage performance is necessary for dielectric materials to achieve cutting-edge applications. As shown in
Luo et al. [22] introduced an A-site high-valent ion in AgNbO 3 based ceramics to create vacancies, indirectly reducing the tolerance factor to stabilize the antiferroelectric phase, and increased the energy storage density
In consideration of environmental protection and energy demand, it is an inevitable trend to explore lead-free dielectric ceramics with high energy storage performance. The lead-free antiferroelectric ceramics based on silver niobate (AgNbO_3) with double hysteresis loops have been proved to be a potential energy storage
2 · This work offers a valuable and convenient strategy for designing antiferroelectric energy storage materials to meet the requirements of future practical
AgNbO3-based lead-free antiferroelectric ceramics with double ferroelectric hysteresis loops have been proved to be potential candidates for energy storage applications. Enhanced energy storage performance with recoverable energy density of 3.3 J/cm3 and high thermal stability with minimal energy density variation
Currently, the lead-free bismuth-based ceramic composition (Na 0.5 Bi 0.5 ) TiO 3 (NBT) has been studied comprehensively owing to its excellent ferroelectric characteristics such as its maximal
A giant Wrec ~10.06 J cm−3 is realized in lead-free relaxor ferroelectrics, especially with an ultrahigh η ~90.8%, showing breakthrough progress in the
Herein, this work reports on lead-free SrTi 0.875 Nb 0.1 O 3 (STN) replacement of (Bi 0.47 La 0.03 Na 0.5) 0.94 Ba 0.06 TiO 3 (BLNBT) ferroelectric ceramics with excellent energy storage performance. Improving relaxor behaviour and breakdown strength ( E b ), decreasing grain size, and mitigating large polarization difference are
Dielectric capacitors with excellent energy storage performance (ESP) are in great demand in the power electronics industry due to their high power density. For the dielectric materials, the dielectric breakdown strength (BDS) is the key factor to improve ESP, which is the focus and bottleneck of current research, especially in the
Ma JJ, Zhang DH, Ying F, et al. Ultrahigh energy storage density and high efficiency in lead-free (Bi 0.9 Na 0.1) (Fe 0.8 Ti 0.2)O 3-modified NaNbO 3 ceramics via stabilizing the antiferroelectric phase and enhancing relaxor behavior.
Environmentally benign lead-free bulk ceramics with high recoverable energy density (W rec) are very attractive in advanced pulsed power capacitors this work, composition engineering was adopted by La 3+ modification to improve the energy storage performance of Ag 1−3x La x NbO 3 ceramics. ceramics.
These results not only suggest that the NaNbO 3-based relaxor antiferroelectric ceramics are promising candidates for advanced energy storage
Ultrahigh energy-storage performances in Lead-free Na 0.5 Bi 0.5 TiO 3-based relaxor antiferroelectric ceramics through a synergistic design strategy, ACS Appl. Mater. Interfaces., 14 ( 2022 ), pp. 22263 - 22269
Abstract. Lead-free dielectric ceramics with high recoverable energy density are highly desired to sustainably meet the future energy demand. AgNbO 3 -based lead-free
Lead-free dielectric capacitors with high energy storage density and temperature-insensitive performance are pivotal to pulsed power systems. In this work, a
In addition, their energy-density variation of less than 10 % over a wide temperature range of −50 to 150°. The present research offers a route for designing
Surprisingly, the doped ceramics increased E FE-AFE by half, DBDS by 16 %, and maintained energy storage efficiency η of over 85 %, providing a way to improve energy storage density. It is worth mentioning that while the performance has been improved, the sintering temperature has been reduced by 170 °C.
Antiferroelectric materials, which exhibit high saturation polarization intensity with small residual polarization intensity, are considered as the most promising dielectric energy storage materials. The energy storage properties of ceramics are known to be highly dependent on the annealing atmosphere employed in their
In this work, we systematically investigated the effects of single-step and two-step sintering methods on the structural, dielectric and energy storage properties of pure AgNbO3 lead-free antiferroelectric ceramics. Compared with the single-step sintered ceramic, the ceramic prepared by two-step sintering method has smaller grain size,
Silver niobate (AgNbO3) is considered as one of the most promising lead-free replacements for lead-containing antiferroelectric (AFE) ceramics, and has been drawing progressively more attention because of its relatively high energy storage density. However, weak ferroelectricity in pure AgNbO3 exerts a negat
Environmentally benign lead-free bulk ceramics with high recoverable energy density (W rec) are very attractive in advanced pulsed power capacitors. In this work, composition engineering was adopted by
DOI: 10.1016/j.jeurceramsoc.2024.02.016 Corpus ID: 267614780 Recent development of lead-free relaxor ferroelectric and antiferroelectric thin films as energy storage dielectric capacitors Ceramic-based capacitors have attracted great interest due to their large
In this work, (1 − x)(0.92NaNbO 3 –0.08BaTiO 3)– x Ca 0. 7 La 0. 2 TiO 3 (NNBT – x CLT) ceramics were successfully designed and prepared by the solid-state reaction method vestigations on the structure, dielectric, and
Lead-free NaNbO 3 (NN) antiferroelectric ceramics provide superior energy storage performance and good temperature/frequency stability, which are solid candidates for dielectric capacitors in high power/pulse electronic power systems. However, their conversion of
Lead-free ceramic-based dielectric capacitors have attracted extensive investigation due to their potential applications in pulsed power devices. However, the main drawback of dielectric ceramics is the relatively low energy storage density. Herein, Bi 3+ and Mg 2+ with different ionic radius and valence are introduced into antiferroelectric
However, developing lead-free dielectric materials with a combination of high recoverable energy storage density and efficiency remains a challenge. Herein, a high energy storage density of 7.04 J/cm 3 as well as a high efficiency of 80.5% is realized in the antiferroelectric Ag(Nb 0.85 Ta 0.15 )O 3 -modified BiFeO 3 -BaTiO 3 ferroelectric
Most significantly, the outcomes of this study are expected to provide a standard for other emerging lead-free dielectric ceramics displaying very good energy-storage
Our results provide a simple and novel way to design high-performance AgNbO3-based energy storage lead-free ceramics . Graphical abstract XRD patterns of the AN S1 and S2. The inset is the
DOI: 10.1016/j.cej.2024.150476 Corpus ID: 268501404 Excellent energy storage performance of lead-based antiferroelectric ceramics via enhancing dielectric breakdown mechanism Owing to the merits of giant power density and ultrafast charge-discharge time
Antiferroelectric ceramics are recently, a research hotspot for electrostatic energy storage because of their large electric‐field induced polarization. Lead‐free sodium niobate (NaNbO3)‐based ceramics are one of the emerging antiferroelectric counterparts. However, the unstable antiferroelectric phase seriously
Antiferroelectric to relaxor ferroelectric phase transition in PbO modified (Pb0.97La0.02)(Zr0.95Ti0.05)O3 ceramics with a large energy-density for dielectric energy storage RSC Adv., 7 ( 2017 ), pp. 43327 - 43333
Dielectric capacitors are widely concerned because of high-power density. It is essential to develop lead-free materials with high recoverable energy density (Wrec). Herein, the Ag1–3xEuxNbO3 (AENx) ceramics with x = 0, 0.01, 0.02, and 0.04 were synthesized via a traditional solid-state reaction method. The effects of Eu3+ additions on
Recently developed Na 1/2 Bi 1/2 TiO 3 (NBT)-based relaxor ferroelectric ceramics are promising lead-free candidates for dielectric energy storage applications because of their non-toxicity and
Nowadays, environmental-friendly ceramics simultaneously possessing good dielectric temperature stability and energy-storage characteristics are receiving unparalleled attention. In this work, Bi 2 O 3 modified AgNbO 3 lead-free ceramics were successfully prepared by a traditional solid-state reaction method.
AgNbO3 lead-free antiferroelectric (AFE) ceramics are attractive candidates for energy storage applications and power electronic systems. In this study, AgNbO3 ceramics are synthesized by single-step sintering (SSS) and two-step sintering (TSS) processes under oxygen-free atmosphere, and their energy storage performance
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