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

Temperature‐induced changes of the electrical and mechanical properties of aerosol‐deposited BaTiO3 thick films for energy storage applications

“…For comparison, an overview of dielectric properties in commercially available capacitors and selected lead‐free dielectric materials is provided in Table 2. The synthesis temperature ( T S ) of the AD method is at room temperature, much lower than that of solid‐state reaction for the fabrication of commercial X7R multilayer ceramic capacitors (MLCCs) and other BT‐based ceramic capacitors 55–65 . It should be mentioned here that annealing at 500°C is required for AD‐BT films.…”

“…The synthesis temperature (T S ) of the AD method is at room temperature, much lower than that of solid-state reaction for the fabrication of commercial X7R multilayer ceramic capacitors (MLCCs) and other BT-based ceramic capacitors. [55][56][57][58][59][60][61][62][63][64][65] It should be mentioned here that annealing at 500 • C is required for AD-BT films. In addition, the annealed AD-BT films exhibit high energy storage density and efficiency mainly due to the high electrical breakdown strength (E BDS ) and slim-like polarization loop.…”

Enhanced energy storage properties of hafnium-modified (0.7Ba0.55Sr0.45–0.3Bi0.5Na0.5)TiO3-based relaxor ferroelectric ceramics via regulating polarization nonlinearity and bandgap

“…Accordingly, the smaller size of PNRs with both high dynamics and low energy barriers are obtained in the x = 0.15 sample, which is conducive to achieving the higher Z and weaker polarization nonlinearity. 38,70…”

Ultrahigh Energy-Storage Performances in Lead-free Na0.5Bi0.5TiO3-Based Relaxor Antiferroelectric Ceramics through a Synergistic Design Strategy

“… where E and S represent the electric field and electrode area, respectively. As seen in Figure b, P D value reaches a high value of 117.0 MW/cm 3 under 30 kV/mm, which is better to a large number of previously reported NBT-based energy-storage ceramics (Figure c). ,− ,− Although various bulk energy-storage ceramics have been developed rapidly, simultaneously achieving large W rec and η, as well as P D , is still a challenging task. Surprisingly, the ultrahigh comprehensive energy-storage performances achieved in 0.76­(NBT-BT)-0.24CTT would undoubtedly be treated as a breakthrough in bulk dielectric energy-storage ceramics.…”

“…(a) Undamped pulsed discharge current curves in various electric fields, (b) P D values as a function of electric fields, and (c) a comparison between the present 0.76­(NBT-BT)-0.24CTT ceramic and other NBT-based energy-storage ceramics published in the literature. ,− ,− …”