Giant energy storage density with ultrahigh efficiency in multilayer ceramic capacitors via interlaminar strain engineering

Ying Yang, Ke Xu, Bin Yang, Xu Hou, Zhanming Dou, Yuhong Li, Zihao Zheng, Gengguang Luo, Nengneng Luo, Guanglong Ge, Jiwei Zhai, Yuanyuan Fan, Jing Wang, Haoming Yang, Yao Zhang, Jing Wang, Changyuan Wang, Shenglin Jiang, Kanghua Li (), Jinming Guo (), Houbing Huang () and Guangzu Zhang ()
Additional contact information
Ying Yang: Huazhong University of Science and Technology
Ke Xu: Beijing Institute of Technology
Bin Yang: Hubei University
Xu Hou: The Hong Kong Polytechnic University
Zhanming Dou: Huazhong University of Science and Technology
Yuhong Li: Huazhong University of Science and Technology
Zihao Zheng: Hubei University
Gengguang Luo: Huazhong University of Science and Technology
Nengneng Luo: Guangxi University
Guanglong Ge: Tongji University
Jiwei Zhai: Tongji University
Yuanyuan Fan: Beijing Institute of Technology
Jing Wang: Beijing Institute of Technology
Haoming Yang: Huazhong University of Science and Technology
Yao Zhang: Huazhong University of Science and Technology
Jing Wang: Hebei University
Changyuan Wang: Huazhong University of Science and Technology
Shenglin Jiang: Huazhong University of Science and Technology
Kanghua Li: Huazhong University of Science and Technology
Jinming Guo: Hubei University
Houbing Huang: Beijing Institute of Technology
Guangzu Zhang: Huazhong University of Science and Technology

Nature Communications, 2025, vol. 16, issue 1, 1-12

Abstract: Abstract Dielectric capacitors with high energy storage performance are highly desired for advanced power electronic devices and systems. Even though strenuous efforts have been dedicated to closing the gap of energy storage density between the dielectric capacitors and the electrochemical capacitors/batteries, a single-minded pursuit of high energy density without a near-zero energy loss for ultrahigh energy efficiency as the grantee is in vain. Herein, for the purpose of decoupling the inherent conflicts between high polarization and low electric hysteresis (loss), and achieving high energy storage density and efficiency simultaneously in multilayer ceramic capacitors (MLCCs), we propose an interlaminar strain engineering strategy to modulate the domain structure and manipulate the polarization behavior of the dielectric mediums. With a heterogeneous layered structure consisting of different antiferroelectric ceramics [(Pb0.9Ba0.04La0.04)(Zr0.65Sn0.3Ti0.05)O3/(Pb0.95Ba0.02La0.02)(Zr0.6Sn0.4)O3/(Pb0.92Ca0.06La0.02)(Zr0.6Sn0.4)0.995O3], our MLCC exhibits a giant recoverable energy density of 22.0 J cm−3 with an ultrahigh energy efficiency of 96.1%. Combined with the favorable temperature and frequency stabilities and the high antifatigue property, this work provides a strain engineering paradigm for designing MLCCs for high-power energy storage and conversion systems.

Date: 2025
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DOI: 10.1038/s41467-025-56605-3

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