High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performance
Abstract Ceramic capacitors with ultrahigh power density are crucial in modern electrical applications, especially under high-temperature conditions. However, the relatively low energy density limits their application scope and hinders device miniaturization and integration. In this work, we present...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56195-0 |
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| author | Xi Kong Letao Yang Fanqi Meng Tao Zhang Hejin Zhang Yuan-Hua Lin Houbing Huang Shujun Zhang Jinming Guo Ce-Wen Nan |
| author_facet | Xi Kong Letao Yang Fanqi Meng Tao Zhang Hejin Zhang Yuan-Hua Lin Houbing Huang Shujun Zhang Jinming Guo Ce-Wen Nan |
| author_sort | Xi Kong |
| collection | DOAJ |
| description | Abstract Ceramic capacitors with ultrahigh power density are crucial in modern electrical applications, especially under high-temperature conditions. However, the relatively low energy density limits their application scope and hinders device miniaturization and integration. In this work, we present a high-entropy BaTiO3-based relaxor ceramic with outstanding energy storage properties, achieving a substantial recoverable energy density of 10.9 J/cm3 and a superior energy efficiency of 93% at applied electric field of 720 kV/cm. Of particular importance is that the studied high-entropy composition exhibits excellent energy storage performance across a wide temperature range of −50 to 260 °C, with variation below 9%, additionally, it demonstrates great cycling reliability at 450 kV/cm and 200 °C up to 106 cycles. Electrical and in-situ structural characterizations revealed that the high-entropy engineered local structures are highly stable under varying temperature and electric fields, leading to superior energy storage performance. This study provides a good paradigm of the efficacy of the high-entropy engineering for developing high-performance dielectric capacitors. |
| format | Article |
| id | doaj-art-9adec3cd8eba4adc84ca73902019478a |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-9adec3cd8eba4adc84ca73902019478a2025-01-26T12:42:21ZengNature PortfolioNature Communications2041-17232025-01-011611910.1038/s41467-025-56195-0High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performanceXi Kong0Letao Yang1Fanqi Meng2Tao Zhang3Hejin Zhang4Yuan-Hua Lin5Houbing Huang6Shujun Zhang7Jinming Guo8Ce-Wen Nan9State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityElectron Microscopy Center, Ministry-of-Education Key Laboratory of Green Preparation and Application for Functional Materials, School of Materials Science and Engineering, Hubei UniversityElectron Microscopy Center, Ministry-of-Education Key Laboratory of Green Preparation and Application for Functional Materials, School of Materials Science and Engineering, Hubei UniversityState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityAdvanced Research Institute of Multidisciplinary Science, Beijing Institute of TechnologyInstitute for Superconducting and Electronic Materials, Faculty of Engineering and Information Sciences, University of WollongongElectron Microscopy Center, Ministry-of-Education Key Laboratory of Green Preparation and Application for Functional Materials, School of Materials Science and Engineering, Hubei UniversityState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityAbstract Ceramic capacitors with ultrahigh power density are crucial in modern electrical applications, especially under high-temperature conditions. However, the relatively low energy density limits their application scope and hinders device miniaturization and integration. In this work, we present a high-entropy BaTiO3-based relaxor ceramic with outstanding energy storage properties, achieving a substantial recoverable energy density of 10.9 J/cm3 and a superior energy efficiency of 93% at applied electric field of 720 kV/cm. Of particular importance is that the studied high-entropy composition exhibits excellent energy storage performance across a wide temperature range of −50 to 260 °C, with variation below 9%, additionally, it demonstrates great cycling reliability at 450 kV/cm and 200 °C up to 106 cycles. Electrical and in-situ structural characterizations revealed that the high-entropy engineered local structures are highly stable under varying temperature and electric fields, leading to superior energy storage performance. This study provides a good paradigm of the efficacy of the high-entropy engineering for developing high-performance dielectric capacitors.https://doi.org/10.1038/s41467-025-56195-0 |
| spellingShingle | Xi Kong Letao Yang Fanqi Meng Tao Zhang Hejin Zhang Yuan-Hua Lin Houbing Huang Shujun Zhang Jinming Guo Ce-Wen Nan High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performance Nature Communications |
| title | High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performance |
| title_full | High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performance |
| title_fullStr | High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performance |
| title_full_unstemmed | High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performance |
| title_short | High-entropy engineered BaTiO3-based ceramic capacitors with greatly enhanced high-temperature energy storage performance |
| title_sort | high entropy engineered batio3 based ceramic capacitors with greatly enhanced high temperature energy storage performance |
| url | https://doi.org/10.1038/s41467-025-56195-0 |
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