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Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design

Author

Listed:
  • Liang Chen

    (University of Science and Technology Beijing
    University of Science and Technology Beijing)

  • Shiqing Deng

    (University of Science and Technology Beijing
    University of Science and Technology Beijing)

  • Hui Liu

    (University of Science and Technology Beijing
    University of Science and Technology Beijing)

  • Jie Wu

    (University of Science and Technology Beijing)

  • He Qi

    (University of Science and Technology Beijing
    University of Science and Technology Beijing)

  • Jun Chen

    (University of Science and Technology Beijing
    University of Science and Technology Beijing)

Abstract

Next-generation advanced high/pulsed power capacitors rely heavily on dielectric ceramics with high energy storage performance. However, thus far, the huge challenge of realizing ultrahigh recoverable energy storage density (Wrec) accompanied by ultrahigh efficiency (η) still existed and has become a key bottleneck restricting the development of dielectric materials in cutting-edge energy storage applications. Here, we propose a high-entropy strategy to design “local polymorphic distortion” including rhombohedral-orthorhombic-tetragonal-cubic multiphase nanoclusters and random oxygen octahedral tilt, resulting in ultrasmall polar nanoregions, an enhanced breakdown electric field, and delayed polarization saturation. A giant Wrec ~10.06 J cm−3 is realized in lead-free relaxor ferroelectrics, especially with an ultrahigh η ~90.8%, showing breakthrough progress in the comprehensive energy storage performance for lead-free bulk ceramics. This work opens up an effective avenue to design dielectric materials with ultrahigh comprehensive energy storage performance to meet the demanding requirements of advanced energy storage applications.

Suggested Citation

  • Liang Chen & Shiqing Deng & Hui Liu & Jie Wu & He Qi & Jun Chen, 2022. "Giant energy-storage density with ultrahigh efficiency in lead-free relaxors via high-entropy design," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-30821-7
    DOI: 10.1038/s41467-022-30821-7
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    References listed on IDEAS

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    Cited by:

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    2. Huifen Yu & Tengfei Hu & Haoyu Wang & He Qi & Jie Wu & Ruonan Zhang & Weisan Fang & Xiaoming Shi & Zhengqian Fu & Liang Chen & Jun Chen, 2025. "Design of polymorphic heterogeneous shell in relaxor antiferroelectrics for ultrahigh capacitive energy storage," Nature Communications, Nature, vol. 16(1), pages 1-9, December.
    3. Da Li & Zhaobo Liu & Weichen Zhao & Yan Guo & Zhentao Wang & Diming Xu & Houbing Huang & Li-Xia Pang & Tao Zhou & Wen-Feng Liu & Di Zhou, 2025. "Global-optimized energy storage performance in multilayer ferroelectric ceramic capacitors," Nature Communications, Nature, vol. 16(1), pages 1-9, December.
    4. Antu Laha & Suguru Yoshida & Francisco Marques dos Santos Vieira & Hemian Yi & Seng Huat Lee & Sai Venkata Gayathri Ayyagari & Yingdong Guan & Lujin Min & Jose Gonzalez Jimenez & Leixin Miao & David G, 2024. "High-entropy engineering of the crystal and electronic structures in a Dirac material," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    5. Jinfeng Lin & Jin Qian & Guanglong Ge & Yuxuan Yang & Jiangfan Li & Xiao Wu & Guohui Li & Simin Wang & Yingchun Liu & Jialiang Zhang & Jiwei Zhai & Xiaoming Shi & Haijun Wu, 2024. "Multiscale reconfiguration induced highly saturated poling in lead-free piezoceramics for giant energy conversion," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    6. Jian Fu & Aiwen Xie & Ruzhong Zuo & Yiqian Liu & He Qi & Zongqian Wang & Quan Feng & Jinming Guo & Kun Zeng & Xuefeng Chen & Zhengqian Fu & Yifan Zhang & Xuewen Jiang & Tianyu Li & Shujun Zhang & Yuan, 2024. "A highly polarizable concentrated dipole glass for ultrahigh energy storage," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    7. Jianhong Duan & Kun Wei & Qianbiao Du & Linzhao Ma & Huifen Yu & He Qi & Yangchun Tan & Gaokuo Zhong & Hao Li, 2024. "High-entropy superparaelectrics with locally diverse ferroic distortion for high-capacitive energy storage," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    8. Jiaming Liu & Ying Jiang & Weichen Zhang & Xu Cheng & Peiyao Zhao & Yichao Zhen & Yanan Hao & Limin Guo & Ke Bi & Xiaohui Wang, 2024. "Ferroelectric tungsten bronze-based ceramics with high-energy storage performance via weakly coupled relaxor design and grain boundary optimization," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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