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Published in: Rare Metals 2/2023

09-11-2022 | Original Article

Enhanced breakdown strength and energy storage density of AgNbO3 ceramics via tape casting

Authors: Ming-Yuan Zhao, Jing Wang, Lin Chen, Hao Yuan, Mao-Hua Zhang, Su-Wei Zhang, Lei Zhao

Published in: Rare Metals | Issue 2/2023

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Abstract

Antiferroelectric materials are promising candidates for energy-storage applications due to their double hysteresis loops, which can deliver high power density. Among the antiferroelectric materials, AgNbO3 is proved attractive due to its environmental-friendliness and high potential for achieving excellent energy storage performance. However, the recoverable energy storage density of AgNbO3 ceramics is limited by their relatively low breakdown strength. Herein, the breakdown strength of the pure AgNbO3 ceramics prepared using the tape casting method is enhanced to 307 kV·cm−1, which is, to the best of our knowledge, among the highest values reported for pure AgNbO−3 bulk ceramics. The high breakdown strength may be due to its dense microstructure and good crystallinity obtained by the tape casting method and the optimized sintering temperature. Owing to its enhanced breakdown strength, AgNbO3 ceramics show high recoverable energy storage density of 2.8 J·cm−3. These results have led to the development of lead-free antiferroelectric materials and devices with high energy storage density.

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Metadata
Title
Enhanced breakdown strength and energy storage density of AgNbO3 ceramics via tape casting
Authors
Ming-Yuan Zhao
Jing Wang
Lin Chen
Hao Yuan
Mao-Hua Zhang
Su-Wei Zhang
Lei Zhao
Publication date
09-11-2022
Publisher
Nonferrous Metals Society of China
Published in
Rare Metals / Issue 2/2023
Print ISSN: 1001-0521
Electronic ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-022-02150-7

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