Ultrahigh capacitive energy storage of BiFeO3-based ceramics through multi-oriented nanodomain construction

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Feb. 28, 2025

Lead-free BiFeO3-based (BF) materials with colossal spontaneous polarization and high Curie temperatures exhibit considerable potential for groundbreaking developments in dielectric capacitors. However, their inherent limitations, such as restricted breakdown strength (Eb) pronounced remanent polarization, critically restrict advancements energy storage capabilities. Herein, we achieve an exceptional recoverable density of 12.2 J cm−3 impressive efficiency 90.1% via the strategic design a dipolar region resilience to electric fields within ceramics. Guided by phase-field simulations validated through atomic-scale observations, superior performance is attributed incorporation aliovalent ions, which disrupt long-range ordered single-phase distribution, thus enhancing disorder vectors drastically reducing hysteresis. Simultaneously, refinement microstructural scale, coupled introduction high-bandgap synergistically improves durability. This study provides feasible blueprint leveraging high-performance ceramics, further facilitates progress lead-free capacitors next-generation systems. The authors make multi-oriented nanodomain ceramics fields, achieving 90.1%.

Language: Английский

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Structurally Regulated Design Strategy of Bi_0.5Na_0.5TiO₃-Based Ceramics for High Energy-Storage Performance at a Low Electric Field

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(25), P. 32367 - 32374

Published: June 11, 2024

Dielectric ceramic capacitors are prospective energy-storage devices for pulsed-power systems owing to their ultrafast charge-discharge speed. However, low density makes them difficult commercialize high-pulse-power technology applications. Herein, we presented a structurally regulated design strategy disrupt long-range ferroelectric order, refined grains, and eventually achieve excellent comprehensive performance in (1 - x) (0.7Bi0.5Na0.5TiO3-0.3SrTiO3)-x Sm(Zn2/3Nb1/3)O3 eco-friendly ceramics. A large Wrec of ∼7.43 ± 0.05 J/cm3 high η ∼85 0.5% 0.96 (0.7Bi0.5Na0.5TiO3-0.3SrTiO3)-0.04 were obtained at electric field 290 kV cm-1 with good temperature (25-120 °C), frequency (1-100 Hz) stability, properties (PD ∼ 74 1 MW/cm3 τ0.9 159 2 ns). This inspires rational designs aims promote the development 0.7Bi0.5Na0.5TiO3-based ceramics characteristics.

Language: Английский

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Significant enhancement of comprehensive energy storage performance in BaTiO3-based ceramics through high-entropy design

Journal of the European Ceramic Society, Journal Year: 2025, Volume and Issue: unknown, P. 117401 - 117401

Published: March 1, 2025

Language: Английский

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Improving Energy Storage Performance of (Bi0.5Na0.5)0.94Ba0.06TiO3-based High-entropy Ceramics by A/B-site Co-regulation

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Enhanced energy storage performance of BiFeO3-BaTiO3 based ceramics under moderate electric fields via multiple synergistic design

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162494 - 162494

Published: April 1, 2025

Language: Английский

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Realizing Superior Energy Storage Performance and Ultrafast Discharge Rate in NaNbO₃-Based Ceramics by Multiscale Manipulation

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Dielectric capacitors exhibit great promise for use in advanced energy storage devices. Nevertheless, realizing a large density (Wrec) and high efficiency (η) remains an arduous challenge. In this work, multiscale manipulation strategy was employed by integrating polar-nanoregions (PNRs) regulation at the nanoscale grain-structure microscale to enhance performance of NaNbO3-based ceramics. The incorporation (Bi0.5Na0.5)0.7Sr0.3TiO3 (BNST) into (Na0.94La0.06)(Nb0.88Zr0.12)O3 (NLNZ) ceramics induces amount PNRs nanoscale, thereby giving rise η ultrafast discharge rate. addition, microscale, decreased grain size dense structure resistivity as well activation ceramics, thus leading breakdown electric field (Eb) consequently enhanced Wrec. At last, optimal (Wrec ∼ 9.3 J/cm3, 82.4% Eb 920 kV/cm) realized 0.80NLNZ-0.20BNST ceramic through manipulation. Furthermore, also demonstrates excellent stabilities under varying frequency (1-500 Hz), temperature (20-160 °C), cycling (1-106 cycles) outstanding charge/discharge performances (power PD 407 MW/cm3, current CD 1659 A/cm2, rate t0.9 13 ns). These results suggest that 0.80NLNT-0.20BNST exhibits significant application potential.

Language: Английский

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Engineering nanocluster and pyrochlore phase in BiFeO3-based ceramics for electrostatic energy storage

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: 287, P. 111829 - 111829

Published: Sept. 8, 2024

Language: Английский

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High-Entropy Composition Design for Achieving Excellent Energy Storage Performance in (Bi_0.5Na_0.5)_0.94Ba_0.06TiO₃-Based Ceramics

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Language: Английский

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Preparation of Amorphous Bi-Fe-O Series Semiconductor and Its Crystallization Behavior and Photocatalytic Activity

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1003, P. 175658 - 175658

Published: July 20, 2024

Language: Английский

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Aliovalent doping engineering to synergistically optimize the energy storage properties of Sr0.7Bi0.2TiO3-based linear-like relaxor ferroelectric ceramics

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157866 - 157866

Published: Nov. 1, 2024

Language: Английский

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