Dielectric and temperature stable energy storage properties of 0.88BaTiO3–0.12Bi(Mg1/2Ti1/2)O3 bulk ceramics

Hu, Qingyuan; Jin, Li; Wang, Tong; Li, Chunchun; Xing, Zhuo; Wei, Xiaoyong

doi:10.1016/j.jallcom.2015.02.225

Cited by 224 publications

(75 citation statements)

References 26 publications

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“…Bismuth‐containing relaxors are believed to be promising alternatives for lead‐based relaxors as both Bi 3+ and Pb 2+ possess lone pair electronic configuration 6 s 2 which can be strongly hybridized with O 2 p orbitals, accounting for the high polarization and dielectric constant . Energy densities between 1‐3 J/cm 3 in BaTiO 3 ‐Bi(MeʹMeʺ)O 3 (Meʹ = Mg 2+ , Zn 2+ ; Meʺ = Ti 4+ , Nb 5+ ) relaxor ceramics have been reported, demonstrating they are potential candidates for lead‐free energy storage applications . On the other hand, bismuth‐modified strontium titanate ((Sr 0.7 Bi 0.2 )TiO 3 , SBT for short) was reported to possess strong relaxor characteristic, the substitution of trivalent Bi ions to divalent Sr ions in SrTiO 3 results in relaxor behavior and high polarization .…”

Section: Introductionmentioning

confidence: 99%

Bi‐modified SrTiO₃‐based ceramics for high‐temperature energy storage applications

et al. 2019

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Dielectric capacitors with high energy storage performance are in great demand for emerging advanced energy storage applications. Relaxor ferroelectrics are one type dielectric materials possessing high energy storage density and energy efficiency simultaneously. In this study, 0.9(Sr0.7Bi0.2)TiO3–0.1Bi(Mg0.5Me0.5)O3 (Me = Ti, Zr, and Hf) dielectric relaxors are designed and the corresponding energy storage properties are investigated. The excellent recoverable energy density of 3.1 J/cm3 with a high energy efficiency of 93% is achieved at applied electric field of 360 kV/cm for 0.9(Sr0.7Bi0.2)TiO3–0.1Bi(Mg0.5Hf0.5)O3 (0.9SBT–0.1BMH) ceramic. High breakdown strength of 460 kV/cm in 0.9SBT–0.1BMH ceramic is obtained by Weibull distribution with satisfied reliability. In addition, 0.9SBT–0.1BMH shows outstanding thermal stability of energy storage performance up to 200°C, with the variation being less than 5%, together with satisfying cycling stability and high charge‐discharge rate, making the 0.9SBT–0.1BMH ceramic a potential lead‐free candidate for high power energy storage applications at elevated temperature.

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Section: Introductionmentioning

confidence: 99%

Bi‐modified SrTiO₃‐based ceramics for high‐temperature energy storage applications

et al. 2019

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“…So, there are two possible routes to improve the energy-storage density of AFE and FE ceramics for energy storage applications: One is to enhance the BDS for high E and another is to increase the limit of integration by enlarging the difference between the P max and P r . For the first route, it was found that AFE ceramic ( [17][18][19][20][21] It indicated that partial occupancy of Bi 3þ at the A site of the perovskite compound could effectively improve the energy storage properties. As a promising candidate system, relaxor ferroelectrics BaTiO 3 (BT)-based ceramics play a key role in the area of energy density capacitors because of their low P max , high P r , and low loss.…”

mentioning

confidence: 99%

Enhanced energy storage density by inducing defect dipoles in lead free relaxor ferroelectric BaTiO3-based ceramics

Zhou

Pang

2017

Applied Physics Letters

147

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In this work, Mn-doped 0.9BaTiO3-0.1Bi(Mg2/3Nb1/3)O3 ceramics were prepared by the conventional solid state reaction method, and the effect of defect dipoles on energy storage properties of lead free relaxor ferroelectric BaTiO3-based ceramics was studied. The crystal structure, dielectric properties, and energy storage properties were explored in detail. It was found that polarization hysteresis (P-E) loops of 0.9BaTiO3-0.1Bi(Mg2/3Nb1/3)O3-x wt. % MnCO3 (0.2–0.5) ceramics took on high maximum polarization (Pmax) and low remanent polarization (Pr). Meanwhile, recoverable energy density (Wrec) and energy conversion efficiency (η) were obviously enhanced by inducing defect dipoles into BaTiO3-Bi(Mg2/3Nb1/3)O3 relaxor ferroelectrics. The 0.9BaTiO3-0.1Bi(Mg2/3Nb1/3)O3-0.3 wt. % MnCO3 ceramic was found to exhibit good energy storage properties with a Wrec of about 1.70 J/cm3 and a η ∼ 90% under an electric field of 210 kV/cm. The breakdown electric field and Wrec of BaTiO3-based materials were significantly increased in the present work, and they might be good candidates for high power energy storage applications.

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“…It can be found that the first dielectric constant anomaly peak shifts to lower temperature and the magnitude of the anomaly peak decreases with increasing the value of x. It is due to the fact that large differences of ion valences and sizes among Ti 4+ , Zr 4+ and Nb 5+ in B-sites disturb the long range ferroelectric order of ceramics 10, 53, 54 . The second dielectric constant anomaly peak also decreases in magnitude while its position remains almost unchanged.…”

Section: Resultsmentioning

confidence: 96%

High energy storage density over a broad temperature range in sodium bismuth titanate-based lead-free ceramics

Yang

Yan

Lin

et al. 2017

Sci Rep

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106

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A series of (1-x)Bi0.48La0.02Na0.48Li0.02Ti0.98Zr0.02O3-xNa0.73Bi0.09NbO3 ((1-x)LLBNTZ-xNBN) (x = 0-0.14) ceramics were designed and fabricated using the conventional solid-state sintering method. The phase structure, microstructure, dielectric, ferroelectric and energy storage properties of the ceramics were systematically investigated. The results indicate that the addition of Na0.73Bi0.09NbO3 (NBN) could decrease the remnant polarization (P r) and improve the temperature stability of dielectric constant obviously. The working temperature range satisfying TCC 150 °C ≤±15% of this work spans over 400 °C with the compositions of x ≥ 0.06. The maximum energy storage density can be obtained for the sample with x = 0.10 at room temperature, with an energy storage density of 2.04 J/cm3 at 178 kV/cm. In addition, the (1-x)LLBNTZ-xNBN ceramics exhibit excellent energy storage properties over a wide temperature range from room temperature to 90 °C. The values of energy storage density and energy storage efficiency is 0.91 J/cm3 and 79.51%, respectively, for the 0.90LLBNTZ-0.10NBN ceramic at the condition of 100 kV/cm and 90 °C. It can be concluded that the (1-x)LLBNTZ-xNBN ceramics are promising lead-free candidate materials for energy storage devices over a broad temperature range.

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Dielectric and temperature stable energy storage properties of 0.88BaTiO3–0.12Bi(Mg1/2Ti1/2)O3 bulk ceramics

Cited by 224 publications

References 26 publications

Bi‐modified SrTiO₃‐based ceramics for high‐temperature energy storage applications

Bi‐modified SrTiO₃‐based ceramics for high‐temperature energy storage applications

Enhanced energy storage density by inducing defect dipoles in lead free relaxor ferroelectric BaTiO3-based ceramics

High energy storage density over a broad temperature range in sodium bismuth titanate-based lead-free ceramics

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Dielectric and temperature stable energy storage properties of 0.88BaTiO3–0.12Bi(Mg1/2Ti1/2)O3 bulk ceramics

Cited by 224 publications

References 26 publications

Bi‐modified SrTiO3‐based ceramics for high‐temperature energy storage applications

Bi‐modified SrTiO3‐based ceramics for high‐temperature energy storage applications

Enhanced energy storage density by inducing defect dipoles in lead free relaxor ferroelectric BaTiO3-based ceramics

High energy storage density over a broad temperature range in sodium bismuth titanate-based lead-free ceramics

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Bi‐modified SrTiO₃‐based ceramics for high‐temperature energy storage applications

Bi‐modified SrTiO₃‐based ceramics for high‐temperature energy storage applications