Structure, electrical properties and energy storage performance of BNKT-BMN ceramics

Peng, Zhanhui; Wang, Jitong; Niu, Mengshu; Nie, Xinru; Xu, Shengxin; Zhang, Fudong; Wang, Juanjuan; Wu, Di; Yang, Zupei; Chao, Xiaolian

doi:10.1007/s10854-021-07507-9

Cited by 10 publications

(7 citation statements)

References 47 publications

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“…At low frequencies, all the peaks in figure 11 collapse into a single master peak, demonstrating that the relaxation distribution is temperature independent [77]. As a result, the charges participating in the dynamic process for conduction on various time scales require the same activation energy [83]. The maxima of M ′′ are caused by the reciprocal of the corresponding capacitances.…”

Section: Electric Modulus Analysismentioning

confidence: 94%

Microstructure, electrical, optical and electrochemical characteristics of silver phosphate glasses cathode for magnesium battery applications

Khalil

Hameed²,

Farrag³

et al. 2022

J. Phys. D: Appl. Phys.

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The realization of a practical magnesium battery is combined with the development of a high kinetic cathode and compatible electrolyte to facilitate the redox process. For this reason, silver phosphate glasses in the binary system (Fe2O3-AgPO3) are prepared using the conventional quenching method. The glasses were defined in the form [Fe2O3]x[AgPO3](100-x) and the composition with 0  x  40 wt. %. The molar volumes and densities were measured. These glass systems were characterized using XRD, FTIR spectroscopy, UV–Vis-NIR spectrophotometer, electrochemical procedures and impedance spectroscopy. X-ray diffraction revealed that pristine AgPO3 sample was formed in a glassy state, whereas two crystalline phases (AgFeP2O7 and Fe2O3) were formed after the incorporation of Fe2O3 by different concentrations. Bond assignments associated with different functional groups were investigated by an FT-IR spectroscopy. The values of the band gap were decreased with the increase of Fe2O3 content. The effect of grains and grain boundaries in a heterostructure made up of Fe2O3 and AgFeP2O7 crystallites grown in silver phosphate glasses was studied using impedance spectroscopy. The complex impedance, electrical conductivity, and complex electric modulus were measured in terms of frequency and temperature dependency in [Fe2O3]x-[AgPO3](1-x). In the studied glass systems, non-Debye relaxation was observed. Under a variable regime, ac conductivity follows a modified Jonscher's law Arrhenius fitting of multiple relaxation processes in the material yielded activation energy of (0.12 eV–0.271 eV) which support a Maxwell–Wagner relaxation model in the heterostructure glasses at high temperatures and low frequencies. The dc conductivity decreases with iron rate and follows the Arrhenius law with very low activation energy (0.12–0.27 eV. Mg//electrolyte//Glass coin cells are assembled and show an initial discharge capacity of up to ∼564 mAh/g. These materials are attractive for application in modernistic electrochemical devices because of their great compositional and preparation variety which enables tuning the types and techniques of electrical conduction in the material.

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Section: Electric Modulus Analysismentioning

confidence: 94%

Microstructure, electrical, optical and electrochemical characteristics of silver phosphate glasses cathode for magnesium battery applications

Khalil

Hameed²,

Farrag³

et al. 2022

J. Phys. D: Appl. Phys.

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“…The addition of larger Y 3+ ions compresses the oxygen octahedron and reduces the movement space of B-site cations, thus reducing the dielectric constant and polarizability. 10,43,44 At the same time, the Curie peak broadens and shifts toward low temperature. As shown in Figs.…”

Section: Resultsmentioning

confidence: 96%

Enhanced Energy Storage Properties of (1-x) Ba_0.96Li_0.04TiO₃−xBiYO₃ Ceramics

Liu¹,

Yang²,

Wu³

et al. 2023

ECS J. Solid State Sci. Technol.

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The lead-free perovskite ceramics of (1-x) Ba0.96Li0.04TiO3-xBiYO3 (BLT-xBY) (x=0.02~0.10) were synthesized using traditional solid reaction sintering at 1250 °C. XRD and Raman spectra analysis showed that the phase structure transformation occurred at 0.06<x<0.08. When x is in the range of 0.02~0.06, the orthorhombic and tetragonal phases coexist in the sample. When x≥0.08, the tetragonal phase disappears, and the orthorhombic phase and the cubic phase coexist. All the samples displayed almost pore-free microstructures with relative densities above 91%. As x increases, the maximum permittivity decreases and moves towards low temperature. The dielectric constant at different frequencies shows dispersion phenomenon. When x=0.08, the remnant polarization (Pr) and the maximum polarization (Pmax) of the composition were 1.047 µC/cm2 and 11.643 µC/cm2, respectively. Meanwhile, the recoverable energy storage density (Wrec) is increased to 0.319 J/cm3 with a high dielectric breakdown strength (BDS) of 69.2kV/cm at x=0.08.

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“…From Figure 6B, it is evident that the maximum polarization strength ( P max ) of (1− x )BST− x BZT ceramics continuously decreases. The residual polarization strength ( P r ) and the breakdown strength ( E b ) initially decrease and then increase with an increase in electric field intensity, which also leads to increased energy loss 42 . A larger breakdown strength can provide a larger polarization difference, aiding in achieving a higher energy storage density.…”

Section: Resultsmentioning

confidence: 99%

“…The residual polarization strength (P r ) and the breakdown strength (E b ) initially decrease and then increase with an increase in electric field intensity, which also leads to increased energy loss. 42 A larger breakdown strength can provide a larger polarization difference, aiding in achieving a higher energy storage density. The recoverable energy storage density and energy storage efficiency of (1−x)BST−xBZT energy storage ceramics were calculated at the maximum breakdown electric field strength as a function of the doping amount of BZT components.…”

Section: Resultsmentioning

confidence: 99%

Energy storage and discharge performance for (1−x)BaSrTiO₃−xBi(Zn_1/2Ti_1/2)O₃ ceramics

Dai,

Liu,

Pan

et al. 2024

Int J Applied Ceramic Tech

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Although lead‐free dielectric ceramics have been widely studied to obtain excellent dielectric properties and good energy storage properties, the primary challenge of low energy storage density has not yet been resolved. Here, we introduce the concept of crossover relaxor ferroelectrics, which represent a state intermediate between normal ferroelectrics and relaxor ferroelectrics, as a solution to address the issue of low energy density. The (1−x)BaSrTiO3−xBi(Zn1/2Ti1/2)O3 (x = 0,.05, .1, .15, .2) ceramics were prepared by a solid‐state method. Remarkably, 0.85BST–0.15BZT ceramics achieved a high recoverable energy density (Wrec) of 2.18 J/cm3 under an electric field of 240 kV/cm. BST–BZT materials exhibit substantial recoverable energy density, high breakdown strength, and superior energy efficiency, positioning them as a promising alternative to meet the diverse demands of high‐power applications.

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Structure, electrical properties and energy storage performance of BNKT-BMN ceramics

Cited by 10 publications

References 47 publications

Microstructure, electrical, optical and electrochemical characteristics of silver phosphate glasses cathode for magnesium battery applications

Microstructure, electrical, optical and electrochemical characteristics of silver phosphate glasses cathode for magnesium battery applications

Enhanced Energy Storage Properties of (1-x) Ba_0.96Li_0.04TiO₃−xBiYO₃ Ceramics

Energy storage and discharge performance for (1−x)BaSrTiO₃−xBi(Zn_1/2Ti_1/2)O₃ ceramics

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Structure, electrical properties and energy storage performance of BNKT-BMN ceramics

Cited by 10 publications

References 47 publications

Microstructure, electrical, optical and electrochemical characteristics of silver phosphate glasses cathode for magnesium battery applications

Microstructure, electrical, optical and electrochemical characteristics of silver phosphate glasses cathode for magnesium battery applications

Enhanced Energy Storage Properties of (1-x) Ba0.96Li0.04TiO3−xBiYO3 Ceramics

Energy storage and discharge performance for (1−x)BaSrTiO3−xBi(Zn1/2Ti1/2)O3 ceramics

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Product

Resources

About

Enhanced Energy Storage Properties of (1-x) Ba_0.96Li_0.04TiO₃−xBiYO₃ Ceramics

Energy storage and discharge performance for (1−x)BaSrTiO₃−xBi(Zn_1/2Ti_1/2)O₃ ceramics