Field-induced strain engineering to optimize antiferroelectric ceramics in breakdown strength and energy storage performance

Yang, Jing; Ge, Guanglong; Chen, Chukai; Shen, Bo; Zhai, Jiwei; Chou, Xiujian

doi:10.1016/j.actamat.2023.119186

Cited by 13 publications

(2 citation statements)

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“…As mentioned earlier, substituting small ions at the A-site and large ions at the B-site serves to reduce the tolerance factor ( t ), which in turn enhances the phase-switching field. 27–30 However, delaying the phase switching fields often results in a weakening of maximum polarization ( P max ). 29 Additionally, the polarization value in the polarization–electric field ( P – E ) hysteresis loop experiences a sharp increase only when the electric field is sufficient to induce the AFE-FE phase transition.…”

Section: Introductionmentioning

confidence: 99%

Enhanced energy storage capabilities in PbHfO₃-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions

Hu,

Pan,

et al. 2024

Inorg. Chem. Front.

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Section: Introductionmentioning

confidence: 99%

Enhanced energy storage capabilities in PbHfO₃-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions

Hu,

Pan,

et al. 2024

Inorg. Chem. Front.

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“…Generally, dielectric materials of capacitors can be categorized as inorganics (bulk or film ceramics) and organics (polymer). Inorganics can deliver a relatively higher energy efficiency and energy density [5][6][7][8][9]. However, their low breakdown strength and non-flexible properties limited the application field.…”

Section: Introductionmentioning

confidence: 99%

Improved Breakdown Strength and Restrained Leakage Current of Sandwich Structure Ferroelectric Polymers Utilizing Ultra-Thin Al2O3 Nanosheets

Zeng,

Pan,

Shen

et al. 2023

Nanomaterials

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Flexible capacity applications demand a large energy storage density and high breakdown electric field strength of flexible films. Here, P(VDF-HFP) with ultra-thin Al2O3 nanosheet composite films were designed and fabricated through an electrospinning process followed by hot-pressing into a sandwich structure. The results show that the insulating ultra-thin Al2O3 nanosheets and the sandwich structure can enhance the composites’ breakdown strength (by 24.8%) and energy density (by 30.6%) compared to the P(VDF-HFP) polymer matrix. An energy storage density of 23.5 J/cm3 at the ultrahigh breakdown strength of 740 kV/mm can be therefore realized. The insulating test and phase-field simulation results reveal that ultra-thin nanosheets insulating buffer layers can reduce the leakage current in composites; thus, it affects the electric field spatial distribution to enhance breakdown strength. Our research provides a feasible method to increase the breakdown strength of ferroelectric polymers, which is comparable to those of non-ferroelectric polymers.

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Ultra‐Weak Polarization‐Strain Coupling Effect Boosts Capacitive Energy Storage

Zhang,

Jing,

Huang

et al. 2024

Advanced Materials

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In pulse power systems, multilayer ceramic capacitors (MLCCs) encounter significant challenges due to the heightened loading electric field (E), which can lead to fatigue damage and ultrasonic concussion caused by electrostrictive strain. To address these issues, an innovative strategy focused on achieving an ultra‐weak polarization‐strain coupling effect is proposed, which effectively reduces strain in MLCCs. Remarkably, an ultra‐low electrostrictive coefficient (Q33) of 0.012 m4 C−2 is achieved in the composition 0.55(Bi0.5Na0.5)TiO3‐0.45Pb(Mg1/3Nb2/3)O3, resulting in a significantly reduced strain of 0.118% at 330 kV cm−1. At the atomic scale, the local structural heterogeneity leads to an expanded and loose lattice structure, providing ample space for large ionic displacement polarization instead of lattice stretching when subjected to the applied E. This unique behavior not only promotes energy storage performance (ESP) but also accounts for the observed ultra‐low Q33 and strain. Consequently, the MLCC device exhibits an impressive energy storage density of 14.6 J cm−3 and an ultrahigh efficiency of 93% at 720 kV cm−1. Furthermore, the superior ESP of the MLCC demonstrates excellent fatigue resistance and temperature stability, making it a promising solution for practical applications. Overall, this pivotal strategy offers a cost‐effective solution for state‐of‐the‐art MLCCs with ultra‐low strain‐vibration in pulse power systems.

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Field-induced strain engineering to optimize antiferroelectric ceramics in breakdown strength and energy storage performance

Cited by 13 publications

References 50 publications

Enhanced energy storage capabilities in PbHfO₃-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions

Enhanced energy storage capabilities in PbHfO₃-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions

Improved Breakdown Strength and Restrained Leakage Current of Sandwich Structure Ferroelectric Polymers Utilizing Ultra-Thin Al2O3 Nanosheets

Ultra‐Weak Polarization‐Strain Coupling Effect Boosts Capacitive Energy Storage

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Field-induced strain engineering to optimize antiferroelectric ceramics in breakdown strength and energy storage performance

Cited by 13 publications

References 50 publications

Enhanced energy storage capabilities in PbHfO3-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions

Enhanced energy storage capabilities in PbHfO3-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions

Improved Breakdown Strength and Restrained Leakage Current of Sandwich Structure Ferroelectric Polymers Utilizing Ultra-Thin Al2O3 Nanosheets

Ultra‐Weak Polarization‐Strain Coupling Effect Boosts Capacitive Energy Storage

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Enhanced energy storage capabilities in PbHfO₃-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions

Enhanced energy storage capabilities in PbHfO₃-based antiferroelectric ceramics through delayed phase switching and induced multiphase transitions