Effizienz der Energiespeicherung dielektrischer Materialien
Ein tieferes Verständnis der Reihenschaltung kann auf die Anwendung elektronischer Schaltungen in der Hochspannungstechnik ausgeweitet werden, wo eine hohe Spannungsfestigkeit erforderlich ist. Solche Schaltungen sind in der Lage, immense Energien zu regulieren und sind essentiell für den Betrieb von Transformatoren und Übertragungsleitungen.
Why do we need dielectric energy storage materials?
Currently, dielectric energy-storage materials are limited in their applications due to their low energy density. Therefore, dielectric materials with excellent energy storage performance are needed.
What is the research status of different energy storage dielectrics?
The research status of different energy storage dielectrics is summarized, the methods to improve the energy storage density of dielectric materials are analyzed and the development trend is prospected. It is expected to provide a certain reference for the research and development of energy storage capacitors.
What are the characteristics of energy storage dielectrics?
For the energy storage dielectrics, the characteristics of high dielectric constant, low loss, large polarization difference (Δ P = Pmax - Pr), high breakdown strength, and good temperature stability are expected simultaneously to meet the application requirements.
Which dielectric materials improve energy storage performance?
Dielectric materials, including organic (polyvinylidene fluoride (PVDF), biaxially oriented polypropylene (BOPP), polyimide (PI), etc.), and inorganic (ceramics, glass, and glass-based ceramics) materials, have been widely investigated to improve the energy storage performance [9, 16, 17, 18, 19, 20].
Are ceramic-based dielectric materials suitable for energy storage capacitor applications?
Particularly, ceramic-based dielectric materials have received significant attention for energy storage capacitor applications due to their outstanding properties of high power density, fast charge–discharge capabilities, and excellent temperature stability relative to batteries, electrochemical capacitors, and dielectric polymers.
How to evaluate energy storage performance of dielectrics?
The accumulated energy in the capacitor during several charging cycles can be quickly released to generate a strong pulse power. Besides U, Urec, and η, the temperature stability, fatigue endurance, and discharge time are also important parameters for evaluating the energy storage performance of the dielectrics.