Significantly enhanced energy storage performances and power density in (1 − x)BCZT-xSBT lead-free ceramics via synergistic optimization strategy

Shi, Cheng; Yan, Fei; Ge, Guanglong; Wei, Yongqi; Zhai, Jiwei; Yao, Wu

doi:10.1016/j.cej.2021.130800

Cited by 56 publications

(25 citation statements)

References 86 publications

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“…In addition, a W d of 1.16 J/cm 3 was calculated based on the overdamped discharge waveform according to Equation (10). As presented in Figure 8 e, the discharge time t 0.9 of ~49.1 ns in our work is superior among the published materials [ 13 , 28 , 29 , 49 , 50 , 51 ], meaning its great potential in advanced power pulse devices.…”

Section: Resultsmentioning

confidence: 72%

Enhanced Energy Storage Performance in Na0.5Bi0.5TiO3-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring

et al. 2022

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Owing to the high power density, excellent operational stability and fast charge/discharge rate, and environmental friendliness, the lead-free Na0.5Bi0.5TiO3 (NBT)-based relaxor ferroelectrics exhibit great potential in pulsed power capacitors. Herein, novel lead-free (1−x)(0.7Na0.5Bi0.5TiO3-0.3Sr0.7Bi0.2TiO3)-xBi(Mg0.5Zr0.5)O3 (NBT-SBT-xBMZ) relaxor ferroelectric ceramics were successfully fabricated using a solid-state reaction method and designed via compositional tailoring. The microstructure, dielectric properties, ferroelectric properties, and energy storage performance were investigated. The results indicate that appropriate Bi(Mg0.5Zr0.5)O3 content can effectively enhance the relaxor ferroelectric characteristics and improve the dielectric breakdown strength by forming fine grain sizes and diminishing oxygen vacancy concentrations. Therefore, the optimal Wrec of 6.75 J/cm3 and a η of 79.44% were simultaneously obtained in NBT-SBT-0.15BMZ at 20 °C and 385 kV/cm. Meanwhile, thermal stability (20–180 °C) and frequency stability (1–200 Hz) associated with the ultrafast discharge time of ~49.1 ns were also procured in the same composition, providing a promising material system for applications in power pulse devices.

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Section: Resultsmentioning

confidence: 72%

Enhanced Energy Storage Performance in Na0.5Bi0.5TiO3-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring

et al. 2022

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“…8(e). 49,86,[90][91][92][93][94] The results conrm that NBNT10 ceramics possess superior chargedischarge performance, which implies that NBNT10 ceramics can be applied to pulsed power systems.…”

Section: Resultsmentioning

confidence: 92%

“…5(f), the comprehensive properties of the NBNT10 ceramics are superior to those of most other lead-free ceramics. 20,22,23,30,40,45–86 Fig. S4† shows the calculated ESP parameters of the NBNT10 ceramics with the growing electric field.…”

Section: Resultsmentioning

confidence: 99%

Superior energy storage properties in NaNbO₃-based ceramics via synergistically optimizing domain and band structures

Yang¹,

Zeng²,

Yan³

et al. 2022

J. Mater. Chem. A

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“…The achieved W rec value is the record-high in SBT-based (SBT content >50%) systems up to now. The comparisons of W rec , η, and P max values with some SBT-based ceramics are given in Figure e. ,,− It is observed that SBT-based ceramics usually possess high η due to the intrinsic relaxor characteristic. However, the W rec value is restricted by the limited P max value.…”

Section: Resultsmentioning

confidence: 99%

“…In general, the W rec of 3.6–4.1 J/cm 3 and a high η above 88% can be achieved from −50 to 200 °C. Figure c exhibits the comparison of W rec between the x = 0.44 sample and other representative recently reported SBT-based ceramics. ,,− Detailed information is shown in Table S2. It is observed that the current sample demonstrates superiorities both in high W rec value and wide operating temperature range.…”

Section: Resultsmentioning

confidence: 99%

Achieving Ultrahigh Energy-Storage Density with Excellent Thermal Stability in Sr_0.7Bi_0.2TiO₃-Based Relaxors via Polarization Behavior Modulation

Wang

Kang

Hong

et al. 2022

ACS Appl. Mater. Interfaces

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Dielectric capacitors possessing the inherent superiorities of high power density and ultrafast charge–discharge speed make their utilization in energy-storage devices extremely propitious, although the relatively low recoverable energy-storage density (W rec) may impede their applications. In this work, unlike the mainstream approach of destroying long-range ferroelectric/antiferroelectric order and inducing relaxor properties to achieve a high W rec value, we have selected end members with a high polarization gene to promote the polarization behavior of the typical relaxor Sr0.7Bi0.2TiO3. Therefore, an ultrahigh W rec ∼ 8 J/cm3 and a superior efficiency (η) ∼ 91% are accomplished in the 0.98[0.56(Sr0.7Bi0.2)TiO3-0.44(Bi0.5Na0.5)TiO3]-0.02 Bi(Mg0.5Ti0.5)O3 sample. The achieved W rec value is record high in Sr0.7Bi0.2TiO3-based systems as far as we know. The polarization-enhancement behavior can be explained by the phase field simulation results, phase content variance in X-ray diffraction Rietveld refinement, hardening trend in Raman spectroscopy, domain morphology, and local symmetry in transmission electron microscope analysis. Meanwhile, the ceramic possesses excellent thermal stability (ΔW rec < 12.7% and Δη < 10.4%, −50–200 °C), frequency (ΔW rec < 2.69% and Δη < 2.06%, 0.5–500 Hz), and fatigue-resistant stability (ΔW rec < 0.08% and Δη < 0.2%, up to 1 × 105 cycles). Accordingly, this work proposes a design idea to tailor the polarization behavior and energy-storage properties of typical relaxors.

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Significantly enhanced energy storage performances and power density in (1 − x)BCZT-xSBT lead-free ceramics via synergistic optimization strategy

Cited by 56 publications

References 86 publications

Enhanced Energy Storage Performance in Na0.5Bi0.5TiO3-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring

Enhanced Energy Storage Performance in Na0.5Bi0.5TiO3-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring

Superior energy storage properties in NaNbO₃-based ceramics via synergistically optimizing domain and band structures

Achieving Ultrahigh Energy-Storage Density with Excellent Thermal Stability in Sr_0.7Bi_0.2TiO₃-Based Relaxors via Polarization Behavior Modulation

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Significantly enhanced energy storage performances and power density in (1 − x)BCZT-xSBT lead-free ceramics via synergistic optimization strategy

Cited by 56 publications

References 86 publications

Enhanced Energy Storage Performance in Na0.5Bi0.5TiO3-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring

Enhanced Energy Storage Performance in Na0.5Bi0.5TiO3-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring

Superior energy storage properties in NaNbO3-based ceramics via synergistically optimizing domain and band structures

Achieving Ultrahigh Energy-Storage Density with Excellent Thermal Stability in Sr0.7Bi0.2TiO3-Based Relaxors via Polarization Behavior Modulation

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Product

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Superior energy storage properties in NaNbO₃-based ceramics via synergistically optimizing domain and band structures

Achieving Ultrahigh Energy-Storage Density with Excellent Thermal Stability in Sr_0.7Bi_0.2TiO₃-Based Relaxors via Polarization Behavior Modulation