Energy storage density and charge–discharge properties of PbHf1−Sn O3 antiferroelectric ceramics
| Autor: | Peng-Zu Ge, Xin-Gui Tang, Yan-Ping Jiang, Xian-Xiong Huang, Qiu-Xiang Liu, Shui-Feng Li, Ke Meng |
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| Rok vydání: | 2022 |
| Předmět: |
Materials science
business.industry General Chemical Engineering General Chemistry Dielectric Ferroelectricity Industrial and Manufacturing Engineering Energy storage law.invention Capacitor Hysteresis law visual_art visual_art.visual_art_medium Environmental Chemistry Optoelectronics Ceramic business Current density Power density |
| Zdroj: | Chemical Engineering Journal. 429:132540 |
| ISSN: | 1385-8947 |
| Popis: | Dielectric capacitors with high energy density, high power density, fast charging-discharge rate and good thermal stability have potential applications in advanced electronics and electric power systems. In this work, the PbHf1-xSnxO3 (PHS) antiferroelectric (AFE) ceramics are prepared via solid-state method. The field-induced AFE to ferroelectric transitions are observed in polarization–electric field (P-E) hysteresis loops. The energy storage capacity increases due to the increase of AFE-ferroelectric switching field despite the field-induced ferroelectric polarization decreases. A high recoverable energy storage density of 10.2 ± 0.4 J/cm3 with high energy efficiency of 78.9% is achieved at 320 kV/cm for x = 0.075 (PHS-0.075) ceramic, which is superior to other systems reported recently. Furthermore, the sample also exhibits excellent stability against testing temperature and frequency. The pulsed charge–discharge process is measured to elucidate the actual operation performance in the PHS ceramic. The PHS-0.075 ceramic possesses a high current density of 1556 A/cm2, a giant power density of 233 MW/cm3 and a fast discharge rate (t0.9 |
| Databáze: | OpenAIRE |
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