Novel Sodium Niobate-Based Lead-Free Ceramics as New Environment-Friendly Energy Storage Materials with High Energy Density, High Power Density, and Excellent Stability

Zhou, Mingxing; Liang, Ruihong; Zhou, Zhiyong; Yan, Shiguang; Dong, Xianlin

doi:10.1021/acssuschemeng.8b01926

Cited by 281 publications

(85 citation statements)

References 64 publications

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“…Some NN‐based solid solutions were reported to exhibit stable AFE orthorhombic P phase at RT, yet extremely large phase switching hysteresis was observed, in addition to their relatively low E B and W rec . Of importance is that improved W rec can be attained in NN‐based solid solutions with a relatively slim P–E loop at high applied electric fields; however, the structure–property relationship is yet unclear. In this work, the NN–BNT solid solution bulk ceramics were fabricated via a conventional high‐temperature solid‐state reaction method.…”

Section: Introductionmentioning

confidence: 68%

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Ultrahigh Energy‐Storage Density in NaNbO₃‐Based Lead‐Free Relaxor Antiferroelectric Ceramics with Nanoscale Domains

Zuo

Xie

et al. 2019

Adv Funct Materials

496

324

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Dielectric energy-storage capacitors have received increasing attention in recent years due to the advantages of high voltage, high power density, and fast charge/discharge rates. Here, a new environment-friendly 0.76NaNbO 3 -0.24(Bi 0.5 Na 0.5 )TiO 3 relaxor antiferroelectric (AFE) bulk ceramic is studied, where local orthorhombic Pnma symmetry (R phase) and nanodomains are observed based on high-resolution transmission electron microscopy, selected area electron diffraction, and in/ex situ synchrotron X-ray diffraction. The orthorhombic AFE R phase and relaxor characteristics synergistically contribute to the record-high energy-storage density W rec of ≈12.2 J cm −3 and acceptable energy efficiency η ≈ 69% at 68 kV mm −1 , showing great advantages over currently reported bulk dielectric ceramics. In comparison with normal AFEs, the existence of large random fields in the relaxor AFE matrix and intrinsically high breakdown strength of NaNbO 3 -based compositions are thought to be responsible for the observed energy-storage performances. Together with the good thermal stability of W rec (>7.4 J cm −3 ) and η (>73%) values at 45 kV mm −1 up to temperature of 200 °C, it is demonstrated that NaNbO 3 -based relaxor AFE ceramics will be potential lead-free dielectric materials for next-generation pulsed power capacitor applications.

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Section: Introductionmentioning

confidence: 68%

“…NaNbO 3 (NN) as a lead‐free AFE material has recently received resurgent attention for energy‐storage applications . However, its AFE P phase with a Pbma space group is not stable at room temperature (RT) and tends to irreversibly transform to FE phase in response to a large external electric field.…”

Section: Introductionmentioning

confidence: 99%

Ultrahigh Energy‐Storage Density in NaNbO₃‐Based Lead‐Free Relaxor Antiferroelectric Ceramics with Nanoscale Domains

Zuo

Xie

et al. 2019

Adv Funct Materials

496

324

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“…4). Compared with state-of-the-art lead-free bulk ceramics 17,20,24,25,29,[40][41][42][43][44][45][46][47][48][49] , the ANT55 exhibits more attractive energy storage performance with both high energy storage density and efficiency, as shown in Fig. 4d.…”

Section: Resultsmentioning

confidence: 99%

Constructing phase boundary in AgNbO3 antiferroelectrics: pathway simultaneously achieving high energy density and efficiency

et al. 2020

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Dielectric capacitors with high energy storage density (Wrec) and efficiency (η) are in great demand for high/pulsed power electronic systems, but the state-of-the-art lead-free dielectric materials are facing the challenge of increasing one parameter at the cost of the other. Herein, we report that high Wrec of 6.3 J cm-3 with η of 90% can be simultaneously achieved by constructing a room temperature M2–M3 phase boundary in (1-x)AgNbO3-xAgTaO3 solid solution system. The designed material exhibits high energy storage stability over a wide temperature range of 20–150 °C and excellent cycling reliability up to 106 cycles. All these merits achieved in the studied solid solution are attributed to the unique relaxor antiferroelectric features relevant to the local structure heterogeneity and antiferroelectric ordering, being confirmed by scanning transmission electron microscopy and synchrotron X-ray diffraction. This work provides a good paradigm for developing new lead-free dielectrics for high-power energy storage applications.

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“…The pyroelectric coefficient was measured by Byer‐Roundy method after several heating/cooling cycles. Other experimental details not mentioned in this study can be found in our previous published papers …”

Section: Methodsmentioning

confidence: 99%

“…Other experimental details not mentioned in this study can be found in our previous published papers. 32,37,38 3 | RESULTS AND DISCUSSION…”

Section: Methodsmentioning

confidence: 99%

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

et al. 2019

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In this study, (1 − x)NaNbO3–xBa0.6(Bi0.5K0.5)0.4TiO3 (abbreviated as NN‐xBBKT, x = 0.05, 0.10, 0.15, and 0.20) lead‐free pyroelectric ceramics were synthesized by conventional solid‐state reaction method. Moreover, their microstructure, phase structure, dielectric, ferroelectric, piezoelectric, and pyroelectric characteristics were studied systematically. The X‐ray diffraction result showed that the phase structure of NN‐xBBKT ceramics changed from orthorhombic to tetragonal and finally became pseudocubic symmetry. The ferroelectric‐paraelectric phase transition temperature and depolarization temperature shifted to lower temperature with the increase in BBKT content. Furthermore, with increasing BBKT content, piezoelectric coefficient, figures of merit, and pyroelectric coefficient first increased and then decreased. The optimum pyroelectric properties (eg Fd = 0.81 × 10−5 Pa−1/2, Fv = 1.02 × 10−2 m2 C−1, Fi = 1.04 × 10−10 m V−1, and p = 3.11 × 10−8 C cm−2 K−1) were observed in sample composition with x = 0.15. More importantly, the pyroelectric coefficient of ceramic with x = 0.15 also displayed relatively high thermal stability because of high depolarization temperature (~110°C). These parameters demonstrate that the novel Pb‐free NaNbO3‐based ceramics form an important class of pyroelectric material with broad range of application prospect.

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Novel Sodium Niobate-Based Lead-Free Ceramics as New Environment-Friendly Energy Storage Materials with High Energy Density, High Power Density, and Excellent Stability

Cited by 281 publications

References 64 publications

Ultrahigh Energy‐Storage Density in NaNbO₃‐Based Lead‐Free Relaxor Antiferroelectric Ceramics with Nanoscale Domains

Ultrahigh Energy‐Storage Density in NaNbO₃‐Based Lead‐Free Relaxor Antiferroelectric Ceramics with Nanoscale Domains

Constructing phase boundary in AgNbO3 antiferroelectrics: pathway simultaneously achieving high energy density and efficiency

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

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Novel Sodium Niobate-Based Lead-Free Ceramics as New Environment-Friendly Energy Storage Materials with High Energy Density, High Power Density, and Excellent Stability

Cited by 281 publications

References 64 publications

Ultrahigh Energy‐Storage Density in NaNbO3‐Based Lead‐Free Relaxor Antiferroelectric Ceramics with Nanoscale Domains

Ultrahigh Energy‐Storage Density in NaNbO3‐Based Lead‐Free Relaxor Antiferroelectric Ceramics with Nanoscale Domains

Constructing phase boundary in AgNbO3 antiferroelectrics: pathway simultaneously achieving high energy density and efficiency

Significantly enhanced pyroelectric performance in novel sodium niobate‐based lead‐free ceramics by compositional tuning

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Ultrahigh Energy‐Storage Density in NaNbO₃‐Based Lead‐Free Relaxor Antiferroelectric Ceramics with Nanoscale Domains

Ultrahigh Energy‐Storage Density in NaNbO₃‐Based Lead‐Free Relaxor Antiferroelectric Ceramics with Nanoscale Domains