Preeminent energy storage properties and superior stability of(Ba(1-x)Bix)(Ti(1-x)Mg2x/3Tax/3)O3 relaxor ferroelectric ceramics via elongated rod-shaped grains and domain structural regulation

Ming Yin ¹Ying Zhang ¹Hai-Rui Bai ²Peng Li ¹Yu-Chao Li ¹Wei-Fang Han ¹Ji-Gong Hao ¹Wei Li ¹Chun-Ming Wang ³Peng Fu⁴

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作者信息

1. School of Materials Science and Engineering,Liaocheng University,Liaocheng 252059,China
2. Shandong Laboratory of Yantai Advanced Materials and Green Manufacturing,Yantai 264006,China
3. School of Physics,Shandong University,Jinan 250100,China
4. School of Materials Science and Engineering,Liaocheng University,Liaocheng 252059,China;School of Physics,Shandong University,Jinan 250100,China
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Abstract

(Ba(1-x)Bix)(Ti(1-x)Mg2x/3Tax/3)O3(BBTMT-x,x=0.075,0.1,0.125,and 0.15)ceramics were manufactured via a solid-phase reaction method.The pseudo-cubic BaTiO3(BT)as the primary phase and Ba4MgTi11O27 as the secondary phase were detected in BBTMT-x ceramics.The elongated rod-shaped grains therein be-came numerous as x increased.The introduction of Bi/Mg/Ta(BMT)elements transformed BT ceramics from ferroelectrics to relaxor ferroelectrics and induced the formation of short-range order polar nanore-gions(PNRs),which were beneficial for the preeminent energy storage properties(ESPs).The highest ESPs(a giant recoverable energy-storage density Wrec of 5.97 J cm-3 with a high-efficiency η of 87.4％)were achieved in BBTMT-0.1 ceramics at 710 kV cm-1.BBTMT-0.1 ceramics also possessed excellent fre-quency(1-500 Hz),temperature(30-150 ℃),and fatigue(cycle number of 1-100,000)stabilities.Finite element simulations(FES)demonstrated that elongated rod-shaped grains had stronger obstacles to the development of electrical branches,which was beneficial to improving the comprehensive ESPs.

Key words

Ceramics/Relaxor ferroelectrics/Energy storage/Polar nanoregions/Stability

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基金项目

Natural Science Foundation of Shandong Province of China(ZR2020ME035)

Natural Science Foundation of Shandong Province of China(ZR2020QE043)

Natural Science Foundation of Shandong Province of China(ZR2020QE044)

National Natural Science Foundation of China(51872166)

National Natural Science Foundation of China(52102132)

National Natural Science Foundation of China(52177020)

Postdoctoral Science Foundation of China(2017M622196)

Opening Project of Key Laboratory of Inorganic Functional Materials and Devices,Chinese Academy of Sciences(KLIFMD201705)

出版年

2024

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCD

影响因子：0.657

ISSN：1005-0302

参考文献量80

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