Enhanced Dielectric Energy Storage Performance of 0.45Na0.5Bi0.5TiO3-0.55Sr0.7Bi0.2TiO3/AlN 0-3 Type Lead-Free Composite Ceramics

Di You; Hua Tan; Zilin Yan; Huayun Gao; Shenggui Chen; Weigang Ma; Pengyuan Fan; Nguyen-Minh-An Tran; Yang Liu; David Salamon; Haibo Zhang

doi:10.1021/acsami.2c01406

Enhanced Dielectric Energy Storage Performance of 0.45Na_0.5Bi_0.5TiO₃-0.55Sr_0.7Bi_0.2TiO₃/AlN 0-3 Type Lead-Free Composite Ceramics

ACS Appl Mater Interfaces. 2022 Apr 20;14(15):17652-17661. doi: 10.1021/acsami.2c01406. Epub 2022 Apr 6.

Authors

Di You^{1

2}, Hua Tan^{1

2

3

4}, Zilin Yan⁵, Huayun Gao^{1

2}, Shenggui Chen⁶, Weigang Ma^{1

2

3

4}, Pengyuan Fan^{1

3}, Nguyen-Minh-An Tran⁷, Yang Liu¹, David Salamon⁸, Haibo Zhang^{1

2

3

4

7}

Affiliations

¹ School of Materials Science and Engineering, State Key Laboratory of Material Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
² Shenzhen Research Institute of Central China Normal University, Shenzhen 518000, PR China.
³ Guangdong HUST Industrial Technology Research Institute, Dongguan 523808, PR China.
⁴ Wenzhou Advanced Manufacturing Technology Research Institute of Huazhong University of Science and Technology, Wenzhou 325000, PR China.
⁵ School of Science, Harbin Institute of Technology, Shenzhen 518055, PR China.
⁶ School of Mechanical Engineering, Dongguan University of Technology, Dongguan 523808, PR China.
⁷ Faculty of Chemical Engineering, Industrial University of Ho Chi Minh City, Ho Chi Minh City 71420, Vietnam.
⁸ Central European Institute of Technology (CEITEC), Brno University of Technology, Brno 621 00, Czech Republic.

PMID: 35384663
DOI: 10.1021/acsami.2c01406

Abstract

Na_0.5Bi_0.5TiO₃ (NBT) ceramic is the promising dielectric material for energy storage devices due to its high maximum polarizability and temperature stability. However, its low breakdown strength limits its application. Here, we prepared 0-3 type composite 0.45Na_0.5Bi_0.5TiO₃-0.55Sr_0.7Bi_0.2TiO₃/x wt % AlN (NBT-SBT/xAlN) to increase the breakdown strength. The effects of the various AlN contents on the phase composition, microstructures, dielectric, and energy storage properties of NBT-SBT were systematically discussed. The result showed that the enhanced energy storage properties were obtained by introducing AlN particles. The NBT-SBT/6AlN composite ceramics showed a high breakdown strength of 360 kV/cm, large energy density of 5.53 J/cm³, and energy efficiency of 90%. Meanwhile, the excellent frequency (10-500 Hz) and temperature stability (25-125 °C) were exhibited with the fluctuation of energy storage within 9% and energy efficiency more than 87%, suggesting that the 0-3 composite NBT-SBT/xAlN is a candidate dielectric material for the dielectric energy storage.

Keywords: 0−3 type composites; breakdown strength; dielectric properties; energy storage; lead-free.