Contributions of intrinsic and extrinsic polarization species to energy storage properties of Ba0.95Ca0.05Zr0.2Ti0.8O3 ceramics

Zhan, Di; Xu, Qing; Huang, Duan‐Ping; Liu, Hanxing; Chen, Wen; Zhang, Feng

doi:10.1016/j.jpcs.2017.10.038

Cited by 45 publications

(8 citation statements)

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“…Different sintering technologies, such as spark plasma sintering (SPS), two-step sintering, and the formation of coatings using chemical methods, − have also been shown to improve density and give rise to higher BDS and W rec .…”

Section: Principles Of Energy Storage In Electroceramicsmentioning

confidence: 99%

“…BT-based dielectric ceramics have been studied for decades and dominate the commercial market of ceramic capacitors. , Several studies have reported improvements in energy storage performance of BT-based ceramics through (i) substituting oxides to improve BDS, such as Al 2 O 3 , La 2 O 3 , MgO, SiO 2 ; ,,− (ii) employing different sintering techniques, such as SPS, citrate precursor, and cold sintering (CS) to increase ceramic density or control grain growth; ,, (iii) adding sintering aids such as ZnNb 2 O 6 and NiNb 2 O 6 to increase density; , (iv) introducing further end-members in the solid solution, Bi(Mg 1/2 Ti 1/2 )O 3 , , BiYbO 3 , BMN, − NBT–Na 0.73 Bi 0.09 NbO 3 , Nd(Zn 1/2 Ti 1/2 )O 3 , Bi(Zn 2/3 Nb 1/3 )O 3 , Bi(Li 1/2 Nb 1/2 )O 3 , , Bi(Zn 1/2 Zr 1/2 )O 3 , Bi(Zn 1/2 Ti 1/2 )O 3 , YNbO 4 , Bi 0.9 Na 0.1 In 0.8 Zr 0.2 O 3 , Bi(Li 1/2 Ta 1/2 )O 3 , Bi(M g 1/2 Zr 1/2 )O 3 , Bi(Zn 1/2 Sn 1/2 )O 3 , K 0.5 Bi 0.5 TiO 3 –KNbO 3 , and K 0.5 Bi 0.5 TiO 3 –NN to promote RFE behavior. The energy storage properties of BT-based materials are summarized in Table .…”

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

confidence: 99%

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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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Section: Principles Of Energy Storage In Electroceramicsmentioning

confidence: 99%

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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“…The intrinsic contribution originates from the electromechanical response of the crystal lattice and the extrinsic contribution due to other phenomena, such as the motion of domain walls and phase boundaries [36]. Both contributions can be influenced by external electrical, mechanical, and thermal fields [15,[37][38][39]. Here, simultaneously applied fields can either work with one another cooperatively or antagonistically, depending on the relative loading direction.…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Influence of stress on the electromechanical properties and the phase transitions of lead-free (1 − x)Ba(Zr0.2Ti0.8)O3–x(Ba0.7Ca0.3)TiO3

et al. 2022

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The influence of stress on the phase boundaries of polycrystalline lead-free perovskite (1 − x)Ba(Zr0.2Ti0.8)O3–x(Ba0.7Ca0.3)TiO3 (x = 0.4, 0.5, and 0.6) was characterized through the temperature- and stress-dependent small-signal dielectric and piezoelectric response from − 150 to 200 °C under uniaxial compressive stress up to − 75 MPa. For all three compositions, the phase transition temperatures separating the rhombohedral, orthorhombic, tetragonal, and cubic phases were shifted to higher temperatures with an increase in the uniaxial mechanical loading, corresponding to a significant decrease in the dielectric and piezoelectric responses. Additional stress-dependent relative permittivity measurements up to − 260 MPa were conducted at four different constant temperatures (− 10, 10, 25, and 40 °C), revealing significant increases in the dielectric response, making these materials interesting for tunable dielectric applications. Furthermore, the stress-induced shift in phase transition temperatures was confirmed by in situ combined temperature- and stress-dependent Raman spectroscopy measurements under different constant uniaxial loads within the temperature range from 30 to 130 °C. Graphical abstract

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“…Thence the highest energy storage density is expected at room temperature with a corresponding relatively high-energy efficiency. Table 4, gathers the energy storage parameters of some other systems [59][60][61][62]. The temperature instability of the energy storage parameters was evaluated using the equation 5 [63]:…”

Section: Ferroelectric and Energy Storage Investigationsmentioning

confidence: 99%

Structural, dielectric, electrocaloric and energy storage properties of lead free Ba0.975La0.017(ZrxTi0.95-x)Sn0.05O3 (x = 0.05; 0.20) ceramics

Smail

Benyoussef

Taïbî

et al. 2020

Materials Chemistry and Physics

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A-site deficient Ba0.975La0.0170.0085(ZrxTi0.95-x)Sn0.05O3 (x = 0.05; 0.20) ceramics (BLaZ100xTS) were synthesized using the solid-state reaction. The microstructural study revealed a high density and low porosity in the studied ceramics. Besides, grain size lower than 1.5 µm was observed in the studied compounds, which is due to the incorporation of the rare earth element (lanthanum). X-ray diffraction and Raman studies revealed that BLaZ5TS and BLaZ20TS crystallize in a perovskite-type structure with tetragonal and cubic symmetry, respectively. The dielectric study showed a normal ferroelectric-paraelectric phase transition for BLaZ5TS while a diffuse phase transition is noticed for BLaZ20TS sample. The energy-storage density and the associated energy efficiency were determined from the P-E loops versus temperature and the calculated values are comparable with results obtained on BCZT systems. Furthermore, the adiabatic temperature change ΔT was calculated through the indirect method and a relatively high value of ΔT/ΔE = 0.2 10-6 K m/V is obtained in BLaZ5TS system. The simultaneous presence of energy storage property and electrocaloric responsivity makes this system a promising environmentally friendly candidate for application in electronic devices.

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Contributions of intrinsic and extrinsic polarization species to energy storage properties of Ba0.95Ca0.05Zr0.2Ti0.8O3 ceramics

Cited by 45 publications

References 47 publications

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

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

Influence of stress on the electromechanical properties and the phase transitions of lead-free (1 − x)Ba(Zr0.2Ti0.8)O3–x(Ba0.7Ca0.3)TiO3

Structural, dielectric, electrocaloric and energy storage properties of lead free Ba0.975La0.017(ZrxTi0.95-x)Sn0.05O3 (x = 0.05; 0.20) ceramics

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