A highly polarizable concentrated dipole glass for ultrahigh energy storage
Relaxor ferroelectrics are highly desired for pulse-power dielectric capacitors, however it has become a bottleneck that substantial enhancements of energy density generally sacrifice energy efficiency under superhigh fields. Here, we demonstrate a novel concept of highly polarizable concentrated dipole glass in delicately-designed high-entropy (Bi<sub>1/3</sub>Ba<sub>1/3</sub>Na<sub>1/3</sub>)(Fe<sub>2/9</sub>Ti<sub>5/9</sub>Nb<sub>2/9</sub>)O<sub>3</sub> ceramic achieved via substitution of multiple heterovalent ferroelectric-active principal cation species on equivalent lattice sites. The atomic-scaled polar heterogeneity of dipoles with different polar vectors between adjacent unit cells enables diffuse reorientation process but disables appreciable growth with electric fields. These unique features cause superior recoverable energy density of ~15.9 J cm<sup>-3</sup> and efficiency of ~93.3% in bulk ceramics. We also extend the highly polarizable concentrated dipole glass to the prototype multilayer ceramic capacitor, which exhibits record-breaking recoverable energy density of ~26.3 J cm<sup>-3</sup> and efficiency of ~92.4% with excellent temperature and cycle stability. This research presents a distinctive approach for designing high-performance energy-storage dielectric capacitors.
Authors
- Jinming Guo (ORCID: https://orcid.org/0000-0003-2556-709X)
- Zongqian Wang (ORCID: https://orcid.org/0000-0001-5369-792X)
- Aiwen Xie (ORCID: https://orcid.org/0009-0003-9581-8816)
- Ruzhong Zuo (ORCID: https://orcid.org/0000-0001-8295-4323)
- Tianyu Li (ORCID: https://orcid.org/0000-0001-8857-433X)
- Yiqian Liu (ORCID: https://orcid.org/0000-0003-0440-4048)
- Ce‐Wen Nan (ORCID: https://orcid.org/0000-0002-3261-4053)
- He Qi (ORCID: https://orcid.org/0000-0002-3094-3574)
- Zhengqian Fu (ORCID: https://orcid.org/0000-0001-9402-9549)
- Yifan Zhang (ORCID: https://orcid.org/0000-0001-8474-1268)
- Shujun J. Zhang (ORCID: https://orcid.org/0000-0001-6139-6887)
- Jian Fu (ORCID: https://orcid.org/0000-0002-2680-0394)
- Xuefeng Chen (ORCID: https://orcid.org/0000-0003-1051-2571)
- Yuanhua Lin (ORCID: https://orcid.org/0000-0002-5652-6701)
- Xuewen Jiang
- Quan Feng
- Kun Zeng (ORCID: https://orcid.org/0000-0003-2486-1772)
Institutions
- Hefei University of Technology (CN)
- Chinese Academy of Sciences (CN)
- University of Wollongong (AU)
- Shanghai Institute of Ceramics (CN)
- State Key Laboratory of New Ceramics and Fine Processing
- Anhui Polytechnic University (CN)
- Hubei University (CN)
- University of Science and Technology Beijing (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-08-26
- DOI
- https://doi.org/10.1038/s41467-024-51766-z
- Citations
- 58
- Primary Topic
- Ferroelectric and Piezoelectric Materials
- Type
- article
- Field-Weighted Citation Impact
- 6.79
Funders
- Natural Science Foundation of Anhui Province
- National Key Research and Development Program of China
- Anhui Provincial Key Research and Development Plan