Enhanced energy-storage properties of lead-free Bi0.5Na0.5TiO3-based relaxor ferroelectric ceramics by tuning sintering temperature

Ultrahigh energy storage capacities in high-entropy relaxor ferroelectrics

“…1(e). 17,19,26,27,40–63 The BNT-H15 VPP ceramic, with an extraordinary ξ over 180 J kV −1 cm −2 , represents an optimal comprehensive ESP recorded for lead-free ceramics. This demonstrates the effectiveness of the high-entropy approach in developing materials with superior comprehensive ES characteristics.…”

High-performance energy-storage ferroelectric multilayer ceramic capacitors via nano-micro engineering

“…[36][37][38][39] In the past few years, the main ways to improve the W rec of energy-storage ceramic capacitors have been preparation methods and component optimization. [40][41][42][43][44] For instance, an enhanced energy density was obtained by optimizing sintering temperature in 0.85(0.55Na 0.5 Bi 0.5 TiO 3 -0.45Sr 0.7 La 0.2 TiO 3 )-0.15Bi(Mg 2/3 Nb 1/3 )O 3 (NBT-SLT-BMN) ceramics. The optimal sintering temperature (1170 °C) causes a double increase in the BDS, and a high W rec of 3.88 J cm −3 was produced.…”

“…The optimal sintering temperature (1170 °C) causes a double increase in the BDS, and a high W rec of 3.88 J cm −3 was produced. 40 (1 − x )(Bi 0.48 La 0.02 Na 0.5 )Ti 0.92 (Al 0.5 Nb 0.5 ) 0.08 O 3 - x SrTiO 3 [(1 − x )(BLNANT)- x ST] ceramics achieved an enhanced energy-storage performance by tuning the ratio of BLNANT and ST, of which W rec and η can reach 3.55 J cm −3 and 78% under a low electric field of 255 kV cm −1 . 41 Obviously, these ways have limited effects on the energy-storage performances.…”

Enhanced Energy-Storage Performances in Sodium Bismuth Titanate-Based Relaxation Ferroelectric Ceramics with Optimized Polarization by Tuning Sintering Temperature

“…According to the above research, it is feasible to improve the energy-storage performance of materials by composition doping or structural design [17,18]. However, these methods have many uncertain factors and large instability, so there is still a long way to go to be put into practice [19][20][21]. Therefore, a simple, stable, and easy to implement method needs to be explored.…”