Achieving excellent energy storage performance with thermal stability in lead-free AgNbO<sub>3</sub> ceramics

Chao, Wenna; Du, Juan; Li, Peng; Li, Wei; Yang, Tongqing

doi:10.1039/d3dt03139j

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Cited by 3 publications

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First-principles study on the stability, electronic structure, and band alignment of AgNbO3 surfaces: Understanding the adsorption process of H2O and O2

Carvalho de Oliveira,

Longo,

Ribeiro

et al. 2025

Computational Materials Science

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First-principles study on the stability, electronic structure, and band alignment of AgNbO3 surfaces: Understanding the adsorption process of H2O and O2

Carvalho de Oliveira,

Longo,

Ribeiro

et al. 2025

Computational Materials Science

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High energy storage density in AgNbO3-based lead-free antiferroelectrics using A/B-site co-doping strategy

Zhang,

Jiang,

Zhang

et al. 2024

Applied Physics Letters

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Lead-free antiferroelectric AgNbO3 ceramics have garnered extensive attention due to their rapid charge/discharge capabilities and environmentally friendly nature, holding immense potential for energy storage applications. However, the practical utilization of AgNbO3 has been hindered by its low energy storage density. This study employed an A/B-site co-doping strategy, which yielded positive effects on the energy performance of AgNbO3 ceramics. By modifying the A/B-sites with equivalent amounts of Bi3+ and Y3+ ions, enhanced maximum polarization, improved breakdown field, and slimmer hysteresis loops were simultaneously achieved, as the combined effects of refined grain size, wider optical bandgap, and randomly distributed antiferroelectric nanodomains, which were verified through the scanning electron microscope, transmission electron microscope, and ultraviolet–visible spectrum. As a consequence, a high energy storage density of 5.40 J/cm3 accompanied by an energy storage efficiency of 56.5% was achieved in the Ag0.97Bi0.01Nb0.994Y0.01O3 ceramic under a relatively low electric field of 190 kV/cm. This study underscores the effectiveness of A/B-site aliovalent co-doping as a viable strategy for developing high-performance ceramic capacitors for energy storage applications.

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Achieving Excellent Energy Storage Performance in Pb-Free Bnt-Based Ceramic Composite Via Both High-Entropy and Grain Engineering Strategy

He,

Chen,

Taotao

et al. 2024

Preprint

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Achieving excellent energy storage performance with thermal stability in lead-free AgNbO₃ ceramics

Abstract: Large hysteresis and low energy density of pure AgNbO3 ceramics limit its further application in pulsed power technique. Here, Sm2O3 modified AgNbO3 less-harmful antiferroelectric ceramics were synthesized by rolling process...

Cited by 3 publications

References 40 publications

First-principles study on the stability, electronic structure, and band alignment of AgNbO3 surfaces: Understanding the adsorption process of H2O and O2

First-principles study on the stability, electronic structure, and band alignment of AgNbO3 surfaces: Understanding the adsorption process of H2O and O2

High energy storage density in AgNbO3-based lead-free antiferroelectrics using A/B-site co-doping strategy

Achieving Excellent Energy Storage Performance in Pb-Free Bnt-Based Ceramic Composite Via Both High-Entropy and Grain Engineering Strategy

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Achieving excellent energy storage performance with thermal stability in lead-free AgNbO3 ceramics

Abstract: Large hysteresis and low energy density of pure AgNbO3 ceramics limit its further application in pulsed power technique. Here, Sm2O3 modified AgNbO3 less-harmful antiferroelectric ceramics were synthesized by rolling process...

Cited by 3 publications

References 40 publications

First-principles study on the stability, electronic structure, and band alignment of AgNbO3 surfaces: Understanding the adsorption process of H2O and O2

First-principles study on the stability, electronic structure, and band alignment of AgNbO3 surfaces: Understanding the adsorption process of H2O and O2

High energy storage density in AgNbO3-based lead-free antiferroelectrics using A/B-site co-doping strategy

Achieving Excellent Energy Storage Performance in Pb-Free Bnt-Based Ceramic Composite Via Both High-Entropy and Grain Engineering Strategy

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Achieving excellent energy storage performance with thermal stability in lead-free AgNbO₃ ceramics