Achieving high energy efficiency and energy density in PbHfO<sub>3</sub>-based antiferroelectric ceramics

Chao, Wenna; Yang, Tongqing; Li, Yongxiang

doi:10.1039/d0tc04617e

Cited by 49 publications

(39 citation statements)

References 33 publications

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“…Furthermore, we also demonstrated reliable polarization and energy performance under strong strain as the PHO films were epitaxially grown on the flexible mica substrates. Compared with existing PHO research, our epitaxial PHO films show the best energy storage performance at high temperature and under strong strain, [16,17,[21][22][23] greatly expanding their application ranges, for example, for flexible electronics.…”

Section: Introductionmentioning

confidence: 90%

Antiferroelectric Anisotropy of Epitaxial PbHfO₃ Films for Flexible Energy Storage

Tsai

Zheng

et al. 2021

Adv Funct Materials

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Dielectric capacitors are widely studied for power supply systems because they can quickly store and release electrical energy. Among various kinds of dielectric materials, antiferroelectrics show promising features of high energy-storage density and efficiency. In this study, epitaxial antiferroelectric PbHfO 3 films with different orientations are fabricated, in which remarkable anisotropies of polarization and energy storage properties are discovered. With the optimization of film orientation, much-improved energy density and excellent high-temperature efficiency are achieved in the PbHfO 3 films. Moreover, the PbHfO 3 films are fabricated onto flexible mica substrates, which exhibit excellent property robustness against mechanical bending. This study provides a fundamental understanding of the anisotropic antiferroelectric behaviors of epitaxial PbHfO 3 films and provides a generalizable pathway for flexible energy-storage dielectric capacitors.

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Section: Introductionmentioning

confidence: 90%

Antiferroelectric Anisotropy of Epitaxial PbHfO₃ Films for Flexible Energy Storage

Tsai

Zheng

et al. 2021

Adv Funct Materials

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“…130 , 131 Additionally, some new AFEs have also been identified based on PbHfO 3 , Pb(Lu 0.5 Nb 0.5 )O 3 , Pb(Yb 0.5 Nb 0.5 )O 3 , and Pb(Tm 0.5 Nb 0.5 )O 3 . 132 − 138 …”

Section: State-of-the-art In Electroceramics For Energy Storagementioning

confidence: 99%

Electroceramics for High-Energy Density Capacitors: Current Status and Future Perspectives

et al. 2021

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Materials exhibiting high energy/power density are currently needed to meet the growing demand of portable electronics, electric vehicles and large-scale energy storage devices. The highest energy densities are achieved for fuel cells, batteries, and supercapacitors, but conventional dielectric capacitors are receiving increased attention for pulsed power applications due to their high power density and their fast charge–discharge speed. The key to high energy density in dielectric capacitors is a large maximum but small remanent (zero in the case of linear dielectrics) polarization and a high electric breakdown strength. Polymer dielectric capacitors offer high power/energy density for applications at room temperature, but above 100 °C they are unreliable and suffer from dielectric breakdown. For high-temperature applications, therefore, dielectric ceramics are the only feasible alternative. Lead-based ceramics such as La-doped lead zirconate titanate exhibit good energy storage properties, but their toxicity raises concern over their use in consumer applications, where capacitors are exclusively lead free. Lead-free compositions with superior power density are thus required. In this paper, we introduce the fundamental principles of energy storage in dielectrics. We discuss key factors to improve energy storage properties such as the control of local structure, phase assemblage, dielectric layer thickness, microstructure, conductivity, and electrical homogeneity through the choice of base systems, dopants, and alloying additions, followed by a comprehensive review of the state-of-the-art. Finally, we comment on the future requirements for new materials in high power/energy density capacitor applications.

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“…Nevertheless, the energy storage properties of PHO-based ceramics have rarely been reported. In 2020, Chao et al [176] prepared Pb 0.98 La 0.02 (Hf x Sn 1−x ) 0.995 O 3 antiferroelectric ceramics, and achieved a good energy storage performance: W rec and  are of 7.63 J/cm 3 and 94% for x = 0.45 composition, respectively. Recently, Huang et al [177] reported pure PHO ceramic films by sol-gel method at 650 ℃ annealing temperature, and achieved a W rec of 24.9 J/cm 3 .…”

Section: Pb-based Antiferroelectric Ceramicsmentioning

confidence: 99%

Progress and perspectives in dielectric energy storage ceramics

Zeng

et al. 2021

J Adv Ceram

193

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Dielectric ceramic capacitors, with the advantages of high power density, fast charge-discharge capability, excellent fatigue endurance, and good high temperature stability, have been acknowledged to be promising candidates for solid-state pulse power systems. This review investigates the energy storage performances of linear dielectric, relaxor ferroelectric, and antiferroelectric from the viewpoint of chemical modification, macro/microstructural design, and electrical property optimization. Research progress of ceramic bulks and films for Pb-based and/or Pb-free systems is summarized. Finally, we propose the perspectives on the development of energy storage ceramics for pulse power capacitors in the future.

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Achieving high energy efficiency and energy density in PbHfO₃-based antiferroelectric ceramics

Abstract: Antiferroelectric materials with higher electric field, reduced energy dissipation and lower remanent polarization generally display excellent energy storage performance. In this work, Pb0.98La0.02(Hf1-xSnx)0.995O3 lead-based antiferroelectric ceramics were synthesized by a...

Cited by 49 publications

References 33 publications

Antiferroelectric Anisotropy of Epitaxial PbHfO₃ Films for Flexible Energy Storage

Antiferroelectric Anisotropy of Epitaxial PbHfO₃ Films for Flexible Energy Storage

Electroceramics for High-Energy Density Capacitors: Current Status and Future Perspectives

Progress and perspectives in dielectric energy storage ceramics

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Achieving high energy efficiency and energy density in PbHfO3-based antiferroelectric ceramics

Abstract: Antiferroelectric materials with higher electric field, reduced energy dissipation and lower remanent polarization generally display excellent energy storage performance. In this work, Pb0.98La0.02(Hf1-xSnx)0.995O3 lead-based antiferroelectric ceramics were synthesized by a...

Cited by 49 publications

References 33 publications

Antiferroelectric Anisotropy of Epitaxial PbHfO3 Films for Flexible Energy Storage

Antiferroelectric Anisotropy of Epitaxial PbHfO3 Films for Flexible Energy Storage

Electroceramics for High-Energy Density Capacitors: Current Status and Future Perspectives

Progress and perspectives in dielectric energy storage ceramics

Contact Info

Product

Resources

About

Achieving high energy efficiency and energy density in PbHfO₃-based antiferroelectric ceramics

Antiferroelectric Anisotropy of Epitaxial PbHfO₃ Films for Flexible Energy Storage

Antiferroelectric Anisotropy of Epitaxial PbHfO₃ Films for Flexible Energy Storage