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
Read MoreThis 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
Read MoreLead-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
Read MoreCeramic-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
Read MoreLead-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
Read MoreIn 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
Read MoreIn 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,
Read MoreGrain size engineered lead-free ceramics with both large energy storage density and ultrahigh mechanical properties
Read MoreBF-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.
Read MoreOwing 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
Read MoreEnergy 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
Read MoreOne 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),
Read MoreHighly 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).
Read MoreHere, 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
Read MoreNovel 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
Read MoreToward 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
Read MoreOptimized 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
Read MoreBoth 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
Read MoreDielectric 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
Read MoreBased 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)
Read MoreOwing to the current global scenario of environmental pollution and the energy crisis, the development of new dielectrics using lead-free ceramics for
Read MoreEnergy-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
Read MoreThe 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)
Read MoreFor practical applications of pulsed capacitors, environmentally friendly (lead-free) energy storage ceramics with the combined benefits of high recoverable
Read MoreThis review summarizes the progress of these different classes of ceramic dielectrics for energy storage applications, including their mechanisms and strategies
Read MoreThe 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
Read MoreCompared 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.
Read MoreThe 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.
Read MoreZhang 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).
Read MoreIn this review, we present perspectives and challenges for lead-free energy-storage MLCCs. Initially, the energy-storage mechanism and device
Read MoreBased on the principle of sustainable development theory, lead-free ceramics are regarded as an excellent candidate in dielectrics for numerous pulsed power capacitor applications
Read MoreHere, 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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