Dielectric properties and charge–discharge behaviors in niobate glass ceramics for energy-storage applications

Simultaneously high-energy storage density and responsivity in quasi-hysteresis-free Mn-doped Bi0.5Na0.5TiO3-BaTiO3-(Sr0.7Bi0.2□0.1)TiO3 ergodic relaxor ceramics

“…Twenty samples for each composition are measured to obtain the average BDS values. The results show that all the plots display a relatively good linearity and the Weibull modulus β is more than 8, indicating the reliability of the fitting [17]. Besides, β is correlated with the range of BDS, and the intercept determines the magnitude of BDS, as shown by the dashed line.…”

Homogeneous/Inhomogeneous‐Structured Dielectrics and their Energy‐Storage Performances

“…This approximate composition of 63% SiO 2 , 12% BaO, 16% B 2 O 3 , and 9% Al 2 O 3 had an ultrahigh dc breakdown strength (12 MV cm −1 ), giving rise to energy densities in excess of 35 J cm −3 . Xue et al reported barium boroaluminosilicate glass with the same composition as SchottAF‐45 as an amorphous matrix, and the glass–ceramics with 60% glass content exhibited a clear increasing trend of charge–discharge efficiency, with the maximum value of 92.5% at 1300 kV cm −1 . This bulk glass has attracted considerable interest in recent years for potential applications in the automotive and aerospace industries, due to its ability of absorbing ripple current, good thermal stability, and low dielectric loss up to 200 °C.…”

Analogous Anti-Ferroelectricity in Y2O3-Coated (Pb0.92Sr0.05La0.02)(Zr0.7Sn0.25Ti0.05)O3 Ceramics and Their Energy-Storage Performance

“…An additional promising technique is adding glass-like sintering aids, which can increase the relative density of ceramics sintered at low sintering temperatures, beneficial for obtaining a small grain size. Glass-based inhomogenous dielectrics provide another alternative choice, in which the barium boroaluminosilicate glass (SchottAF-45) is proved to exhibit the highest E b value of 12 MV/cm in a bulk glass state as reported by Smith et al [27], whose dielectric breakdown strength is maintained as 1300 kV/cm and charge-discharge efficiency is increased to 92.5%, as reported by Xue, when mixed with 40 mol% (4BaO-Na 2 O-5Nb 2 O 5 ) to form niobate glass-ceramics and diminished interfacial polarization [28].…”