Phase Modulation Leads to Ultrahigh Energy Storage Performance in AgNbO<sub>3</sub>-Based Ceramics and Multilayer Capacitors
Antiferroelectric (AFE) ceramics are competitive energy storage candidates for advanced high-power devices. However, the poor recoverable energy density and efficiency are challenging and severely hinder their applications. Here, superior energy storage performance is obtained in Bi<sup>3+</sup>-, Sr<sup>2+</sup>-, and Ta<sup>5+</sup>-codoped AgNbO<sub>3</sub>-based ceramics. Specifically, with the effective phase modulation via Bi<sup>3+</sup>, the paraelectric T phase stabilizes at room temperature and facilitates a recoverable energy storage density of 9.27 J/cm<sup>3</sup> and an efficiency of 83.2% in (Ag<sub>0.71</sub>Bi<sub>0.07</sub>Sr<sub>0.04</sub>)(Nb<sub>0.85</sub>Ta<sub>0.15</sub>)O<sub>3</sub> ceramics. The corresponding multilayer ceramic capacitor (MLCC) further promotes the recoverable energy storage density to 14.32 J/cm<sup>3</sup> and efficiency to 97.8%, which is almost the best comprehensive energy storage performance among AN-based ceramics and MLCCs to the best of our knowledge. The proposed strategy is generally applicable to design high-performance energy storage devices and other functionalities of AFE dielectric materials.
Authors
- Kongjun Zhu (ORCID: https://orcid.org/0000-0003-0804-8044)
- Yuqing Yang (ORCID: https://orcid.org/0000-0002-5407-5740)
- Lifeng Zhu (ORCID: https://orcid.org/0000-0001-9866-5534)
- Xiangfu Wang (ORCID: https://orcid.org/0000-0003-2365-3357)
- Jing Wang (ORCID: https://orcid.org/0000-0002-7752-1758)
- Ting Tang (ORCID: https://orcid.org/0000-0002-1203-0202)
- Weipeng Liu (ORCID: https://orcid.org/0000-0001-8368-0643)
- Lei Zhao
Institutions
- Hebei University (CN)
- University of Science and Technology Beijing (CN)
- Nanjing University of Aeronautics and Astronautics (CN)
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2024-12-06
- DOI
- https://doi.org/10.1021/acsami.4c17212
- Citations
- 6
- Primary Topic
- Ferroelectric and Piezoelectric Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.70
Funders
- National Natural Science Foundation of China
- University of Science and Technology Beijing
- Priority Academic Program Development of Jiangsu Higher Education Institutions