TU Darmstadt / ULB / TUbiblio

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

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
PPN:
Export:
Suche nach Titel in: TUfind oder in Google
Frage zum Eintrag Frage zum Eintrag

Optionen (nur für Redakteure)
Redaktionelle Details anzeigen Redaktionelle Details anzeigen