Dielectric behavior and impedance spectroscopy in lead-free BNT–BT–NBN perovskite ceramics for energy storage

Xu, Qi; Lanagan, Michael T.; Huang, Xuechen; Xie, Juan; Zhang, Lin; Hao, Hua; Liu, Hanxing

doi:10.1016/j.ceramint.2016.03.062

Cited by 171 publications

(43 citation statements)

References 56 publications

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“…It can be observed that single perovskite phase are formed for the compositions of x < 0.10, while a small amount of secondary phase appears for the compositions of x ≥ 0.10 according to the analysis result of XRD data by MDI Jade software. The results show that the minor secondary phase is Bi 2 Ti 2 O 7 , which is a linear dielectric and also found in other BNT-based systems 40–43 . The formation of the secondary phase may be related to the deficiency of Na and Bi in the system 16, 40 .…”

Section: Resultssupporting

confidence: 76%

“…The results show that the minor secondary phase is Bi 2 Ti 2 O 7 , which is a linear dielectric and also found in other BNT-based systems 40–43 . The formation of the secondary phase may be related to the deficiency of Na and Bi in the system 16, 40 . The lattice parameters calculated from the XRD patterns are plotted in Fig.…”

Section: Resultssupporting

confidence: 76%

“…For further evaluating energy storage performance of the (1-x)LLBNTZ-xNBN ceramics, the comparison of W 1 and BDS between (1-x)BBNT-xNBN ceramics and other lead-free ceramics in recently reported results are shown in Fig. 9 1, 4, 10, 14, 16, 22, 23, 37, 40, 69–75 . It can be seen that the values of W 1 and BDS for (1-x)LLBNTZ-xNBN ceramics are higher than those of other lead-free ceramics.

Figure 8Calculated energy storage density, energy loss density and energy storage efficiency as a function of electric field for the (1-x)LLBNTZ-xNBN ceramics at room temperature.

Figure 9Comparison of W 1 and BDS between (1-x)LLBNTZ-xNBN ceramics and other lead-free ceramics.…”

Section: Resultsmentioning

confidence: 99%

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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

110

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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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Section: Resultssupporting

confidence: 76%

Section: Resultssupporting

confidence: 76%

Figure 8Calculated energy storage density, energy loss density and energy storage efficiency as a function of electric field for the (1-x)LLBNTZ-xNBN ceramics at room temperature.

Figure 9Comparison of W 1 and BDS between (1-x)LLBNTZ-xNBN ceramics and other lead-free ceramics.…”

Section: Resultsmentioning

confidence: 99%

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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

110

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“…Since the band gap of BNT-BT ceramics is around 3.2-3.4eV [64][65][66], there could be electronic states near the Fermi-level [61]. So, it is supposed that (1 -x)(BNT-BT)-xNT system exhibits intrinsic band-type electronic conduction, which is analogous to that in BNT-BT-CZ [63], BNT-BT-KNN [56] and BNT-BT-NBN [21] materials.…”

Section: Ac Conductivitymentioning

confidence: 99%

Structure and electrical properties of lead-free Bi_0.5Na_0.5TiO₃-based ceramics for energy-storage applications

et al. 2016

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optimum energy-storage properties were obtained in 0.90(BNT-BT)-0.10NT with energy-storage density of 1.2 J/cm 3 and energy-storage efficiency of 74.8% at 10 kV/mm. The results demonstrate that (1 -x)(BNT-BT)-xNT ceramics are promising candidate for high-temperature energy-storage application. IntroductionCapacitors play an important role in energy-storage system. Compared to batteries, capacitors possess faster charge-discharge time and higher power density [1,2]. However, the energy that capacitor dielectrics can store is much less than fuel cells or lithium ion batteries [3]. Thus, the development of new capacitor materials with high energy-storage capacity is a challenge for researchers. Additionally, since electronic equipment is often exposed to extreme temperatures in industrial applications, such as space exploration and deep oil / gas well drilling [4,5], the temperature reliability of capacitor materials is also very important. Bi 0.5 Na 0.5 TiO 3 (BNT) based ceramics have been actively studied for energy-storage application in recent years [6-10]. Among the reported systems, (1x)Bi 0.5 Na 0.5 TiO 3 -xBaTiO 3 (BNT-BT) binary solid solution at the morphotropic phase boundary (MPB, 0.06 ≤ x ≤ 0.10)[11] is a promising candidate for high-temperature energy-storage capacitors. On the one hand, the existence of double dielectric anomalies over the studied temperature range can help to improve the temperature stability of the dielectric properties. On the other hand, BNT-BT shows large maximum polarization, which is favorable for obtaining high energy-storage density. Modifications of BNT-based high-temperature energy-storage ceramics focus on expanding the temperature range with stable permittivity, as well as improving their energy-storage density and efficiency. Niobates are the most widely reported members to modify the dielectric and ferroelectric properties of BNT-based ceramics, such as NaNbO 3 [12, 13], KNbO 3 [14, 15], (Li, Ag)NbO 3 [16], Na 0.5 K 0.5 NbO 3 [17-20], and (Na, Bi)NbO 3 [21]. Tantalum and niobium belong to same family in the periodic table of elements. According to J. König [22] and M. Spreitzer [23], tantalate addition can significantly broaden the dielectric anomaly of BNT ceramics. However, the exact dielectric temperature stability has not been reported, neither has the effect of tantalate on the ferroelectric properties.To explore the potential use of tantalate modified BNT-based ceramics for temperature-stable energy-storage application, a new system based on (1x)(0.92Bi 0.5 Na 0.5 TiO 3 -0.08BaTiO 3 )-xNaTaO 3 ((1 -x)(BNT-BT)-xNT) ternary solid solution was prepared in this work. The effects of NT on the structure, dielectric stability, electrical properties, and energy-storage properties of the system were comprehensively investigated. Experimental Procedure(1 -x)(BNT-BT)-xNT (x = 0.01, 0.03, 0.05, 0.10, 0.15) ceramic samples were prepared by traditional solid-state reaction method [8,[24][25][26]. First, the raw powders Bi 2 O 3 (purity 99.0%), Na 2 CO 3 (purity 99.8%), TiO 2 (p...

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“…However, RFE systems are relatively limited and the majorities are lead-containing compositions [21,22]. With serious concern of environmental protection, efforts are being made to develop promising lead-free candidates [23][24][25]. For instance, microwave-sintered (Ba 0.4 Sr 0.6 )TiO 3 ceramics were reported to exhibit a recoverable energy density of 1.15 J/cm with an efficiency of 82.0% [26].…”

Section: Introductionmentioning

confidence: 99%

Perovskite Srx(Bi1−xNa0.97−xLi0.03)0.5TiO3 ceramics with polar nano regions for high power energy storage

et al. 2018

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A B S T R A C TDielectric capacitors are very attractive for high power energy storage. However, the low energy density of these capacitors, which is mainly limited by the dielectric materials, is still the bottleneck for their applications. In this work, lead-free single-phase perovskite Sr x (Bi 1−x Na 0.97−x Li 0.03 ) 0.5 TiO 3 (x = 0.30 and 0.38) bulk ceramics, prepared using solid-state reaction method, were carefully studied for the dielectric capacitor application. Polar nano regions (PNRs) were created in this material using co-substitution at A-site to enable relaxor behaviour with low remnant polarization (P r ) and high maximum polarization (P max ). Moreover, P max was further increased due to the electric field induced reversible phase transitions in nano regions. Comprehensive structural and electrical studies were performed to confirm the PNRs and reversible phase transitions. And finally a high energy density (1.70 J/cm 3 ) with an excellent efficiency (87.2%) was achieved using the contribution of field-induced rotations of PNRs and PNR-related reversible transitions in this material, making it among the best performing lead-free dielectric ceramic bulk material for high energy storage.

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Dielectric behavior and impedance spectroscopy in lead-free BNT–BT–NBN perovskite ceramics for energy storage

Cited by 171 publications

References 56 publications

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

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

Structure and electrical properties of lead-free Bi_0.5Na_0.5TiO₃-based ceramics for energy-storage applications

Perovskite Srx(Bi1−xNa0.97−xLi0.03)0.5TiO3 ceramics with polar nano regions for high power energy storage

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Dielectric behavior and impedance spectroscopy in lead-free BNT–BT–NBN perovskite ceramics for energy storage

Cited by 171 publications

References 56 publications

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

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

Structure and electrical properties of lead-free Bi0.5Na0.5TiO3-based ceramics for energy-storage applications

Perovskite Srx(Bi1−xNa0.97−xLi0.03)0.5TiO3 ceramics with polar nano regions for high power energy storage

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Structure and electrical properties of lead-free Bi_0.5Na_0.5TiO₃-based ceramics for energy-storage applications