A Broad‐High Temperature Ceramic Capacitor with Local Polymorphic Heterogeneous Structures
Abstract Crafting high‐performance dielectrics tailored for pulsed power capacitors, in response to the escalating demands of practical applications, presents a formidable challenge. Herein, this work introduces a novel lineup of lead‐free ceramics with local polymorphic heterogeneous structures, de...
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202409814 |
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| author | Binglong Zheng Ying Lin Haibo Yang Hongmei Jing Hu Nan Yifei Wang Fang‐Zhou Yao Minquan Wang Qibin Yuan |
| author_facet | Binglong Zheng Ying Lin Haibo Yang Hongmei Jing Hu Nan Yifei Wang Fang‐Zhou Yao Minquan Wang Qibin Yuan |
| author_sort | Binglong Zheng |
| collection | DOAJ |
| description | Abstract Crafting high‐performance dielectrics tailored for pulsed power capacitors, in response to the escalating demands of practical applications, presents a formidable challenge. Herein, this work introduces a novel lineup of lead‐free ceramics with local polymorphic heterogeneous structures, defined by the formula (1‐x)[0.92BaTiO3‐0.08Sr(Mg1/2Ti3/4)O3]‐x(Na0.5Bi0.5)TiO3 (BT‐SMT‐xNBT). This innovative multi‐scale synergistic strategy, spanning from the atomic to grain scale, yields materials with a giant recoverable energy density (Wrec) of 10.1 J·cm−3 and an impressive energy efficiency (η) of 95.0%. The integration of linear end elements SMT can significantly mitigate the polarization hysteresis while concurrently boosting the breakdown strength, thus enhancing overall energy efficiency. Furthermore, the inclusion of NBT with high polarization serves to amplify domain size, thereby reinforcing the electric field‐induced polarization. This addition also stimulates the creation of polymorphic heterostructures, where tetragonal and rhombohedral nanodomains coexist, as validated by aberration‐corrected transmission electron microscopy. Notably, the BT‐SMT‐0.2NBT ceramics have demonstrated outstanding high‐temperature energy storage capabilities, with a Wrec of 7.2 J·cm−3 and an η of 92.2% at 150 °C, along with remarkable broad‐temperature stability (ΔWrec, Δη ≤ 4.0%, ≈20–150 °C). These achievements in this work propel the field toward more practical and durable solutions of energy storage dielectrics. |
| format | Article |
| id | doaj-art-ed93f6c2ce9c4dacb03ae7d86b7dff37 |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
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| series | Advanced Science |
| spelling | doaj-art-ed93f6c2ce9c4dacb03ae7d86b7dff372025-01-09T11:44:46ZengWileyAdvanced Science2198-38442025-01-01121n/an/a10.1002/advs.202409814A Broad‐High Temperature Ceramic Capacitor with Local Polymorphic Heterogeneous StructuresBinglong Zheng0Ying Lin1Haibo Yang2Hongmei Jing3Hu Nan4Yifei Wang5Fang‐Zhou Yao6Minquan Wang7Qibin Yuan8Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an 710021 ChinaShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an 710021 ChinaShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an 710021 ChinaSchool of Physics and Information Technology Shaanxi Normal University Xi'an 710119 ChinaSchool of Microelectronics Faculty of Electronic and Information Engineering Xi'an Jiaotong University Xi'an 710049 ChinaState Key Laboratory for Mechanical Behavior of Material School of Materials Science and Engineering Xi'an Jiaotong University Xi'an 710049 ChinaResearch Center for Advanced Functional Ceramics Wuzhen Laboratory Jiaxing 314500 ChinaShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an 710021 ChinaSchool of Electronic Information & Artificial Intelligence Shaanxi University of Science and Technology Xi'an 710021 ChinaAbstract Crafting high‐performance dielectrics tailored for pulsed power capacitors, in response to the escalating demands of practical applications, presents a formidable challenge. Herein, this work introduces a novel lineup of lead‐free ceramics with local polymorphic heterogeneous structures, defined by the formula (1‐x)[0.92BaTiO3‐0.08Sr(Mg1/2Ti3/4)O3]‐x(Na0.5Bi0.5)TiO3 (BT‐SMT‐xNBT). This innovative multi‐scale synergistic strategy, spanning from the atomic to grain scale, yields materials with a giant recoverable energy density (Wrec) of 10.1 J·cm−3 and an impressive energy efficiency (η) of 95.0%. The integration of linear end elements SMT can significantly mitigate the polarization hysteresis while concurrently boosting the breakdown strength, thus enhancing overall energy efficiency. Furthermore, the inclusion of NBT with high polarization serves to amplify domain size, thereby reinforcing the electric field‐induced polarization. This addition also stimulates the creation of polymorphic heterostructures, where tetragonal and rhombohedral nanodomains coexist, as validated by aberration‐corrected transmission electron microscopy. Notably, the BT‐SMT‐0.2NBT ceramics have demonstrated outstanding high‐temperature energy storage capabilities, with a Wrec of 7.2 J·cm−3 and an η of 92.2% at 150 °C, along with remarkable broad‐temperature stability (ΔWrec, Δη ≤ 4.0%, ≈20–150 °C). These achievements in this work propel the field toward more practical and durable solutions of energy storage dielectrics.https://doi.org/10.1002/advs.202409814ceramic capacitorshigh‐temperature energy storagelead‐freepolymorphic heterogeneous structure |
| spellingShingle | Binglong Zheng Ying Lin Haibo Yang Hongmei Jing Hu Nan Yifei Wang Fang‐Zhou Yao Minquan Wang Qibin Yuan A Broad‐High Temperature Ceramic Capacitor with Local Polymorphic Heterogeneous Structures Advanced Science ceramic capacitors high‐temperature energy storage lead‐free polymorphic heterogeneous structure |
| title | A Broad‐High Temperature Ceramic Capacitor with Local Polymorphic Heterogeneous Structures |
| title_full | A Broad‐High Temperature Ceramic Capacitor with Local Polymorphic Heterogeneous Structures |
| title_fullStr | A Broad‐High Temperature Ceramic Capacitor with Local Polymorphic Heterogeneous Structures |
| title_full_unstemmed | A Broad‐High Temperature Ceramic Capacitor with Local Polymorphic Heterogeneous Structures |
| title_short | A Broad‐High Temperature Ceramic Capacitor with Local Polymorphic Heterogeneous Structures |
| title_sort | broad high temperature ceramic capacitor with local polymorphic heterogeneous structures |
| topic | ceramic capacitors high‐temperature energy storage lead‐free polymorphic heterogeneous structure |
| url | https://doi.org/10.1002/advs.202409814 |
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