Herstellung von BNT-basierten ferroelektrischen Energiespeicherkeramiken
Unsere faltbaren Photovoltaik-Energiespeichercontainer setzen neue Maßstäbe in der mobilen und nachhaltigen Energieversorgung. Mit einem durchdachten Design und robuster Technologie bieten wir skalierbare Lösungen für flexible Einsatzorte – ob in der Notstromversorgung, auf Baustellen oder in entlegenen Regionen.
Dank der leichten Transportierbarkeit, schnellen Inbetriebnahme und modularen Struktur sind unsere Container die ideale Lösung für die autonome Stromversorgung ohne feste Infrastruktur. Durch die Kombination aus Solarpanelen und innovativer Speichertechnik ermöglichen wir zuverlässige Strombereitstellung – jederzeit und überall.
Herein, the scheelite-structured La 2 WTiO 8 (LWT) is successfully integrated with the perovskite-structured BNT to enhance the energy storage performance (ESPs) of BNT
Are BNT-based ceramics a ferroelectric material?
Pure (Bi,Na)TiO 3 (BNT) ceramics are one of the perovskite ferroelectric materials and have large leakage current, which is not suitable for the energy storage of capacitors . Therefore, the ferroelectric properties of BNT-based ceramics have been modified by doping method and processing technology.
How to improve energy storage performance of BNT-based ceramics?
Therefore, the composite ceramic designed by perovskite BNT phase and tungsten bronze-structured (Sr 0.7 Ba 0.3) 5 LaNb 7 Ti 3 O 30 (SBLNT) phase is a better way to improve the energy storage performance of BNT-based ceramics.
What is the phase transition of BNT-based ceramics from ferroelectric to relaxor?
The phase transition of BNT-based ceramics from ferroelectric to relaxor ferroelectric was achieved at room temperature by SBLNT and Ta. An excellent recoverable energy storage density of 2.4 J/cm 3 and efficiency of 80% were obtained at 0.8 wt% Ta content and 140 kV/cm.
Does tungsten bronze phase improve energy storage properties of BNT-based ceramics?
Wang, Q., Xu, J., Yang, L. et al. Improved energy storage properties of BNT-based ceramics by compositing with tungsten bronze phase.
Why are pure BNT ceramics unsuitable for energy storage?
Moreover, it was found that the data on piezoelectric properties especially d 33 values of the pure BNT ceramic are scarce and also showed low values. For application, pure BNT materials are unsuitable for the energy storage process because they show a high hysteresis with high Pr and Ec values.
How to modify ferroelectric polarization behavior of BNT-based ceramics?
Therefore, the ferroelectric properties of BNT-based ceramics have been modified by doping method and processing technology. The abundant dopants, such as AgNbO 3 , NaNbO 3 , SrTiO 3 , Sr 0.7 Bi 0.2 TiO 3 , and Ba 0.3 Sr 0.7 TiO 3 , were used to modify ferroelectric polarization behavior of BNT-based ceramics.