Achieving ultrahigh energy storage density in super relaxor BCZT-based lead-free capacitors through multiphase coexistence. Dielectric capacitors own great

Lead-free Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) ceramic powders were synthesized using the sol–gel method. The ceramics thickness was reduced to achieve high-energy storage and large electrocaloric effect in bulk ceramics. Dielectric, ferroelectric, energy storage, and electrocaloric properties were investigated for BCZT ceramic with

Xu et al. [150] reported a room temperature energy storage density of 275.56 mJ/cm 3 and excellent energy storage efficiency of 91.55 % in BCZT−0.5MgO ceramics. Hanani et al. [ 151 ] noted a W rec of 414.1 mJ/cm 3 at 380 K, with η of 78.6 %, and high thermal-stability of recoverable energy storage density in the temperature range of 340–400 K.

However, low energy storage density and poor thermostability limit their application. In this work, a strategy was proposed to prepare lead-free relaxor ferroelectric ceramics with ultra-high energy storage properties and superior temperature stability by precisely adjusting the relaxation and ferroelectricity states and increasing the electric

Above all, the significant enhancement in energy storage density of the double layered PBN 0.8-PBN 0.4 BCZT@BN z nanocomposites is mainly determined by the ultrahigh E b. The influence of BNNSs and BCZT@BN NFs on the distributions of electric field and current density in PVDF matrix is verified by the finite element simulation analysis.

It is worth noting that although the BCZT+Ag@Al 2 O 3 /40% PMMA/PVDF exhibits excellent energy storage efficiency, its energy storage density is not satisfying. It is well known that the sandwich structure or multiple layer films were usually designed for further improving the energy storage properties of the composites.

Significantly enhanced energy storage density and efficiency of BNT-based perovskite ceramics via A-site defect engineering

(Ba0.85Ca0.15)(Zr0.10Ti0.90)O3 (BCZT) ceramics exhibit excellent electrical properties due to the existence of morphotropic phase boundary (MPB), and have received extensive attention and research. However, its energy storage density is relatively unsatisfactory. In this work, we propose a synergistic optimization strategy to improve the

The BCZT ceramic derived from the MSGH-synthesized powders had a dense structure (density 5.57 g/cm 3) as well as excellent electrical properties (ε m =

The recoverable energy storage density W rec of xFe:BCZT ceramics is slightly enhanced to 0.240 J cm −3 with an energy storage efficiency η% = 70.1% at x =

Their ratio can be applied to evaluate the energy storage efficiency. The value of energy storage density and energy efficiency are shown in the Fig. 7. The BCZT-1300 sample possesses a higher energy storage density (U ~ 0.15 J/cm 3) than those of other samples. The energy storage efficiency of BCZT ceramics improves from 22.7 to

A high recoverable energy density W reco (7.29 J·cm −3), a satisfying energy storage efficiency η (73.18%), and a large strain (0.51%) are achieved simultaneously with a temperature-insensitive (25 ∼ 175 °C) feature. These properties outstand those of the so far reported FE and AFE perovskite materials.

Thus, the incorporation of BCZT@BN NFs endows the PBN 0.8-PBN 0.4 BCZT@BN 1.6 nanocomposite with an impressive energy storage density (U e) of 24.3 J cm −3, which is 3.57 times of pristine PVDF. Finite element simulation analysis reveals that BNNSs adhered on the surface of BCZT NFs exhibit a prominent effect in local electric

The 0–3 type nanocomposite films of NPh treated nanoBCZT in PVDF-HFP polymer resulted in enhanced dielectric breakdown strength and overall energy

Ultrahigh energy-storage properties with a record value of recoverable energy-storage density Wrec ∼ 9.55 J/cm3 and a high efficiency η ∼ 88% are achieved in Na0.5Bi0.5TiO3-based bulk

In this work, Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 (BCZT)-based lead-free ceramics with an ultrahigh recoverable energy storage density (W rec) were designed and fabricated by introducing the relaxor end-member of Bi(Zn 2/3 Ta 1/3)O 3 (BZT). The addition of BZT disrupted the ferroelectric (FE) long-range order and triggered an FE-to

In this work, BCZT ceramics is modified with an amphoteric Pr 6 O 11 additive, and their effects on energy storage and energy harvesting performance were

Although the piezoelectric and ferroelectric properties of BCZT are relatively mature, the literature is still rare of BCZT ceramics applied on other fields, such as energy storage devices. The pure BCZT has good piezoelectric and ferroelectric properties, but its residual polarization is too large for energy storage applications, thus its energy

Here, the 0.75BCZT-0.25BZN ceramic possesses an ultrahigh energy storage efficiency (∼96.8%) with a large recoverable energy density (∼2.39 J/cm 3)

Dielectric capacitors own great potential in next-generation energy storage devices for their fast charge-discharge time, while low energy storage capacity limits their commercialization. Enormous lead-free ferroelectric ceramic capacitor systems have been reported in recent decades, and energy storage density has increased rapidly. By

Slim hysteresis loops with higher maximum electric field are observed in BCZT ceramics with SLT. Hence, 0.8BCZT with 0.2SLT shows the highest energy

Sai Pavan et al. studied the 0–3 type BCZT-Poly(vinylidiene fluoride-hexafluoropropylene) (BCZT/PVDF-HFP) polymer nanocomposites for dielectric properties and energy storage densities. They observed maximum energy storage density of 8.5 J cm−3 for filler concentration of 10 vol% for films of 10 μm thickness.

As known, total energy density (W t o l = ∫ 0 P max E d P), recoverable energy storage density (W r e c = ∫ P r P max E d P) and efficiency (η = W r e c / W t o l × 100 %) of dielectric materials can be estimated based on the observed polarization hysteresis (P-E) loops (P r and P max are the remnant polarization and the maximum

The energy-storage properties of various stackings are investigated and an extremely large maximum recoverable energy storage density of ≈165.6 J cm −3 (10-nm-thick) can enhance the energy storage properties (The Pt/BCZT/HAO/Au structure has a recoverable energy-storage density of 99.8 J cm −3 and an energy efficiency of 71%

BCZT-xLa (x = 0.0, 0.04) ceramics were synthesized by solid state reaction method. Structure, microstructure, dielectric, and energy storage characteristics were investigated. SEM analysis shows the decrease in grain size with La doping. Addition of La disrupted the long-range ordering and promoted the polar nano regions, resulting in significant

In this study, lead-free (1−x)[Bi0.5(Na0.8K0.2)0.5TiO3]–x[Ba0.844Ca0.156(Zr0.096Ti0.904)O3] (BNKT–BCZT, where x = 0.0, 0.025, 0.05, 0.075, and 0.1) ceramics were produced by tape-casting method to improve their relaxor behavior along with dielectric and energy-storage-density

Maximum energy storage density of 8.5 J cm⁻³ was obtained at an optimum filler concentration of 10 vol% for surface functionalized BCZT/PVDF-HFP composite films of 10 μm thickness. X-ray

Although the energy storage density of BCZT samples with the grain size of 8.28–44.37 µm is relative lower, all the ceramic samples have higher energy storage efficiency (82–87.4%). There is the maximum energy storage density in phase transition temperature of tetragonal–cubic phase for all BCZT ceramics and the maximum energy

Lead-free relaxor ferroelectric ceramics have attracted extensive attention on account of their excellent energy storage properties. However, these ceramics still have some difficulties in improving the energy storage density, efficiency and stability. Herein, (1-x)BaTiO 3-xBi(Mg 2/3 Sb 1/3)O 3 (BT-xBMS, x = 0.08, 0.12, 0.16, and 0.20) ceramics

In this work, Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 (BCZT)-based lead-free ceramics with an ultrahigh recoverable energy storage density (W rec) were designed and fabricated by introducing the relaxor end-member of Bi(Zn 2/3 Ta 1/3)O 3 (BZT). The addition of BZT disrupted the ferroelectric (FE) long-range order and triggered an FE-to

Grain size engineering is considered as an extremely effective method to realize high electric breakdown strength and enhance the recoverable energy density this work, the SnO 2 additive is proposed to drive the grain size smaller and enhance the energy storage performance of the (Ba 0.85 Ca 0.15)(Zr 0.2 Ti 0.8)O 3 lead-free

Dielectric ceramics with relaxor characteristics are promising candidates to meet the demand for capacitors in next-generation pulse devices. In this work, Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 (BCZT)-based lead-free ceramics with an ultrahigh recoverable energy storage density (W rec) were designed and fabricated by introducing the relaxor

We grew lead-free BaZr 0.2 Ti 0.8 O 3 (BZT)/Ba 0.7 Ca 0.3 TiO 3 (BCT) epitaxial heterostructures and studied their structural, dielectric, ferroelectric and energy density characteristics. The

The BCT-BMNT-0.2BS ceramic exhibited a considerably optimal recoverable energy storage density of 5.75 J/cm 3 along with a high energy efficiency of 89.63 % at 650 kV/cm. Moreover, this sample showed good stability in the temperature range of 20–160 °C and frequency range of 1–500 Hz and excellent fatigue resistance up

A series of Ba0.85Ca0.15Zr0.1Ti0.9O3 (referred to as BCZT) ceramics were fabricated by the sol–gel method with different aging temperatures. The structure, dielectric property, and the energy storage property were researched. Compared with the BCZT synthesized with the traditional solid-state reaction method, the samples prepared

In addition, the x = 0.09 composition showed excellent energy storage properties, with an energy storage density of 0.91 J/cm³ at 125 C, high normalized energy storage density (∼0.14 μC/mm²

and energy density properties of PVDF/BCZT composite films having different wt% of BCZT content coercive field (Ec) and energy storage density (W) attain the maximum value of 0.63 μC/cm², 35

Furthermore, enhanced recovered energy density (W rec = 62 mJ cm −3) and high-energy storage efficiency (η) of 72.9% at 130 C were found. The BCZT ceramic demonstrated excellent thermal stability of the energy storage variation (ESV), less than ±5.5% in the temperature range of 30–100 °C compared to other lead-free ceramics.

Mechanical energy harvesting and energy storage through lead-free piezoelectric materials is an inevitable source of eco-friendly sustainable powering of electronic devices. Herein, we have synthesized amphoteric rare-earth element praseodymium (Pr) modified Ba 0.85 Ca 0.15 Ti 0.9 Zr 0.1 O 3 (BCZT) ceramics, with a

When x = 8 %, the maximum energy storage density is 0.57 J/cm 3 at 85 kV/cm, and the efficiency is up to 91.3 %. The lead-free BCZT-8 %BF ceramic has the advantages of low energy loss, high energy storage density and high energy storage efficiency, which has important application value in high energy storage capacitors.

The optimal energy storage density of 1.25 J cm⁻³ and energy efficiency of >95% are obtained at x = 0.15, with maximum dielectric breakdown strength of 185 kV cm⁻¹ at 200 μm thickness., The

BCZT ceramic derived from the rapidly-synthesized powders had a dense microstructure and good electrical properties (εm = 9579, d33 = 496 pC/N, 2Pr = 25.22 µC/cm2, 2Ec = 7.52 kV/cm).

The highest energy storage density 275.56 mJ/cm 3 and excellent energy storage efficiency 91.55% measured at room temperature are noted for the x = 0.50 composition. By further investigating the temperature stability of BCZT-0.5 wt% ceramics, the variation of the energy storage density can be maintained within ±14.18% and the