Zhang, Lei ; Pu, Yongping ; Chen, Min ; Zhuo, Fangping ; Dietz, Christian ; Frömling, Till (2021)
Decreasing polar-structure size : achieving superior energy storage properties and temperature stability in Na0.5Bi0.5TiO3-based ceramics for low electric field and high-temperature applications.
In: Journal of the European Ceramic Society, 41 (12)
doi: 10.1016/j.jeurceramsoc.2021.05.036
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
It is a grand challenge to achieve high energy density (W) and efficiency (η) simultaneously under a low electric field (LE) to obtain new high energy storage capacitors. Similar to anti-ferroelectrics, the (1-x)NBT-xBaMg1/3Nb2/3O3 relaxor material exhibits a non-linear dependence on electric field, which is caused by a reversible field-induced phase transition. This leads to high W (2.37 J/cm3) and η (81.5 %) under a LE of 155 kV/cm, which makes it superior to other bulk ceramics. Combining large polarizability of Ba2+ in A-site and local structural heterogeneity on the B-site by Mg1/3Nb2/34+, enhanced relaxor behavior and decreased polar-structure size were induced in (1-x)NBT-xBaMg1/3Nb2/3O3 ceramics. The permittivity, nevertheless, stays high at ∼2273±15 %. Furthermore, the electrical properties become stable in a wide temperature range from 44−396 °C for the sample with x=0.15. In addition, high current density/CD (450 A/cm2), power density/PD (23 MW/cm3) and discharge density/WD (0.57 J/cm3) were realized tested with pulse discharge testing. Our work will provide a development guidance for dielectric energy storage ceramics at low field and high fields with excellent temperature stability.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Zhang, Lei ; Pu, Yongping ; Chen, Min ; Zhuo, Fangping ; Dietz, Christian ; Frömling, Till |
| Art des Eintrags: | Bibliographie |
| Titel: | Decreasing polar-structure size : achieving superior energy storage properties and temperature stability in Na0.5Bi0.5TiO3-based ceramics for low electric field and high-temperature applications |
| Sprache: | Englisch |
| Publikationsjahr: | September 2021 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 41 |
| (Heft-)Nummer: | 12 |
| DOI: | 10.1016/j.jeurceramsoc.2021.05.036 |
| URL / URN: | https://www.sciencedirect.com/science/article/abs/pii/S09552... |
| Kurzbeschreibung (Abstract): | It is a grand challenge to achieve high energy density (W) and efficiency (η) simultaneously under a low electric field (LE) to obtain new high energy storage capacitors. Similar to anti-ferroelectrics, the (1-x)NBT-xBaMg1/3Nb2/3O3 relaxor material exhibits a non-linear dependence on electric field, which is caused by a reversible field-induced phase transition. This leads to high W (2.37 J/cm3) and η (81.5 %) under a LE of 155 kV/cm, which makes it superior to other bulk ceramics. Combining large polarizability of Ba2+ in A-site and local structural heterogeneity on the B-site by Mg1/3Nb2/34+, enhanced relaxor behavior and decreased polar-structure size were induced in (1-x)NBT-xBaMg1/3Nb2/3O3 ceramics. The permittivity, nevertheless, stays high at ∼2273±15 %. Furthermore, the electrical properties become stable in a wide temperature range from 44−396 °C for the sample with x=0.15. In addition, high current density/CD (450 A/cm2), power density/PD (23 MW/cm3) and discharge density/WD (0.57 J/cm3) were realized tested with pulse discharge testing. Our work will provide a development guidance for dielectric energy storage ceramics at low field and high fields with excellent temperature stability. |
| Freie Schlagworte: | Na0.5Bi0.5TiO3, Low electric field, High-temperature capacitors, Polar structure, Energy storage |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Physics of Surfaces |
| Hinterlegungsdatum: | 15 Jun 2021 05:38 |
| Letzte Änderung: | 12 Okt 2021 13:05 |
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