NaNbO3 modified BiScO3-BaTiO3 dielectrics for high-temperature energy storage applications

Achieving outstanding temperature and frequency stability in NaNbO3-modified (Ba0.94Li0.02La0.04)(Mg0.04Ti0.96)O3 pulse energy storage ceramics

“…In addition, a decreased grain size and increased BDS are also obtained by NN doping. 10 The uctuation of the 3 r , W rec , and W d in a different temperature range for 0.7Bi 0.5 Na 0.5 TiO 3 -0.2Ba 0.3 -Sr 0.7 TiO 3 -0.1NaNbO 3 ceramics is below than 15% (20-300 °C), 15% (−30 to 150 °C), and 5% (25-100 °C). 11 The grain size of the ceramics is diminished to 0.79 mm, and the liquid-phase sintering trait is detected in the ceramics, leading to the BDS to be enlarged to 286 kV cm −1 .…”

“…9 On the other hand, a detailed document summary with respect to energy-storage ceramics show that NN is prefer to atten the dielectric peak of ceramics at T C , thereby enhancing the temperature stability. [10][11][12][13][14][15] Joseph et al reported that the uctuation of the W rec and 3 r for 0.55BaTiO 3 -0.4BiScO 3 -0.05NaNbO 3 ceramics is less than 10% in the range of 25-200 °C. In addition, a decreased grain size and increased BDS are also obtained by NN doping.…”

Low temperature sintering lead‐free dielectric xBiScO3‐(1‐x)BaTiO3 for energy storage applications

“…where R L represents a load resistor, i(t) is the current through R L in duration dt, V is the voltage across R L , and Vol is the volume of the capacitor. 27 The capacitor was first charged up to different fields, and the stored energy discharged through a load resistor with resistance of 1 kΩ. The voltage drained across the resistor was recorded.…”

“…[25][26][27] However, the optimum sintering temperatures reported so far in the literatures are in the range of 1050-1250 C for compositions x = 0.5-0.3, making it infeasible to use silver electrode because of the formation of Bi-Ag alloys. 23,27 In this work, we focus on the structural, dielectric, and ferroelectric characterization of xBiScO 3 -(1-x) BaTiO 3 with respect to sintering temperatures. Significant grain refinement and improved breakdown strength are observed at lower sintering temperatures.…”

High-Performance Dielectric Ceramic for Energy Storage Capacitors

“…in the ceramics, and the interface structure will also affect the polarization, breakdown, and even domain motion of the ceramic. Many methods have been proposed for significantly optimizing the ESP of dielectric ceramics, including the introduction of a polymorphic phase boundary [13], doping with a relaxor ferroelectric phase [14], the formation of a fine-grain structure [15], the combination of the phases with different electric characteristics [16], and the construction of a core-shell structure [17], as well as adopting different sintering techniques [18].…”