Giant energy storage efficiency and low strain hysteresis in lead-free relaxor ferroelectrics by designing the dynamic behavior of PNRs

Jia, Yuxin; Fan, Huiqing; Hou, Dingwei; Lei, Lin; Dong, Guangzhi; Wang, Weijia; Li, Qiang

doi:10.1016/j.ceramint.2022.08.245

Cited by 10 publications

(2 citation statements)

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“…selected NaNbO 3 and La 3+ as chemical modifiers to optimize the relaxation degree of BaTiO 3 -Bi 0.5 Na 0.5 TiO 3 ceramics, which effectively increased the energy storage properties (W rec ∼ 1.24J/cm 3 , η ∼ 96%). 10 In recent years, the concept of high-entropy ceramics (HECs) has received a lot of attention in dielectric ceramics and offers more opportunities for regulating performance strategy. 11 HECs consist of more than five cations occupying one site in almost-equal ratios and because of the "high-entropy effect" (configuration entropy (ΔS config ) > 1.61R, R = 8.314 J/mol⋅K), their crystal structures exhibit a stable single phase.…”

Section: Introductionmentioning

confidence: 99%

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Effect of La substitution on energy storage properties of (Bi_0.2Na_0.2Ca_0.2Ba_0.2Sr_0.2)TiO₃ lead‐free high‐entropy ceramics

Zhang

Niu

et al. 2023

J Am Ceram Soc.

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In this study, a novel lead‐free high‐entropy ceramic (HEC) system, (Bi0.2Na0.2Ca0.2Ba0.2Sr0.2)(1–3x/2)LaxTiO3 (0 ≤ x ≤ 0.15) (abbreviated as BNCBST‐xLa), was designed to enhance energy storage performance through La substitution and prepared via a hydrothermal method. Results indicate that La doping at A site in BNCBST induces lattice distortion and further improves dielectric relaxation. Moreover, grain growth is inhibited by the La content, which results in an increase in the insulation resistance and thus significant enhancement in the electric breakdown strength (Eb). Accordingly, the system with x = 0.03 exhibits an excellent recoverable energy density (Wrec) of 2.43 J/cm3 and a high energy storage efficiency (η) of 85.5% under a great Eb of 245 kV/cm, together with wide temperature stability (Wrec and η vary within ± 8.3% and ± 1.1% at 30–150°C). The findings of this study suggest that the obtained La‐modified BNBCST HECs are promising for energy storage applications.

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Section: Introductionmentioning

confidence: 99%

“…Jia et al. selected NaNbO 3 and La 3+ as chemical modifiers to optimize the relaxation degree of BaTiO 3 ‐Bi 0.5 Na 0.5 TiO 3 ceramics, which effectively increased the energy storage properties ( W rec ∼ 1.24J/cm 3 , η ∼ 96%) 10 …”

Section: Introductionmentioning

confidence: 99%

Effect of La substitution on energy storage properties of (Bi_0.2Na_0.2Ca_0.2Ba_0.2Sr_0.2)TiO₃ lead‐free high‐entropy ceramics

Zhang

Niu

et al. 2023

J Am Ceram Soc.

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Enhanced Energy Storage Properties of Bi_0.5Na_0.5TiO₃‐Based Ceramics via Introducing Na_0.95Ca_0.04Li_0.01Nb_0.96Zr_0.04O₃

Qiang,

Deng,

2024

Physica Status Solidi (a)

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Lead‐free ceramic capacitors with high energy storage density are desired. Herein, the novel (1–x)(0.9Bi0.5Na0.5TiO3‐0.1SrTi0.85Zr0.15O3)‐xNa0.95Ca0.04Li0.01Nb0.96Zr0.04O3 [(1–x)(BNT‐STZ)‐xCZNNL, x = 0.1, 0.2, 0.3, 0.4 and 0.5] ceramics are prepared via citrate combustion technology and two‐step sintering method. The dense microstructures are observed and slim hysteresis loops are realized as addition of CZNNL. The enhanced recoverable energy storage density (W re of 2.52 J cm−3) with high efficiency (η of 80%) is obtained in 0.6(BNT‐STZ)‐0.4CZNNL ceramic under a moderate electric field of 200 kV cm−1. Moreover, excellent thermal stability (W re varies <1% and η varies <3.5%) at 20 to 100 °C) and excellent fatigue resistance are achieved for 0.6(BNT‐STZ)‐0.4CZNNL ceramic.

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High electrostrain and the effects of relaxation degree on strain in poled BNT-based piezoelectric ceramics

Zheng,

Qiang,

Bingxu

et al. 2023

Ceramics International

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Giant energy storage efficiency and low strain hysteresis in lead-free relaxor ferroelectrics by designing the dynamic behavior of PNRs

Cited by 10 publications

References 61 publications

Effect of La substitution on energy storage properties of (Bi_0.2Na_0.2Ca_0.2Ba_0.2Sr_0.2)TiO₃ lead‐free high‐entropy ceramics

Effect of La substitution on energy storage properties of (Bi_0.2Na_0.2Ca_0.2Ba_0.2Sr_0.2)TiO₃ lead‐free high‐entropy ceramics

Enhanced Energy Storage Properties of Bi_0.5Na_0.5TiO₃‐Based Ceramics via Introducing Na_0.95Ca_0.04Li_0.01Nb_0.96Zr_0.04O₃

High electrostrain and the effects of relaxation degree on strain in poled BNT-based piezoelectric ceramics

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Giant energy storage efficiency and low strain hysteresis in lead-free relaxor ferroelectrics by designing the dynamic behavior of PNRs

Cited by 10 publications

References 61 publications

Effect of La substitution on energy storage properties of (Bi0.2Na0.2Ca0.2Ba0.2Sr0.2)TiO3 lead‐free high‐entropy ceramics

Effect of La substitution on energy storage properties of (Bi0.2Na0.2Ca0.2Ba0.2Sr0.2)TiO3 lead‐free high‐entropy ceramics

Enhanced Energy Storage Properties of Bi0.5Na0.5TiO3‐Based Ceramics via Introducing Na0.95Ca0.04Li0.01Nb0.96Zr0.04O3

High electrostrain and the effects of relaxation degree on strain in poled BNT-based piezoelectric ceramics

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Effect of La substitution on energy storage properties of (Bi_0.2Na_0.2Ca_0.2Ba_0.2Sr_0.2)TiO₃ lead‐free high‐entropy ceramics

Effect of La substitution on energy storage properties of (Bi_0.2Na_0.2Ca_0.2Ba_0.2Sr_0.2)TiO₃ lead‐free high‐entropy ceramics

Enhanced Energy Storage Properties of Bi_0.5Na_0.5TiO₃‐Based Ceramics via Introducing Na_0.95Ca_0.04Li_0.01Nb_0.96Zr_0.04O₃