High energy storage density and ultrafast discharge in lead lutetium niobate based ceramics

Abstract

A novel antiferroelectric system possesses a high recoverable energy storage density, ultrafast charge/discharge properties and good fatigue resistance.

Enhanced energy storage performance and thermal stability in relaxor ferroelectric (1‐x)BiFeO3‐x(0.85BaTiO3‐0.15Bi(Sn0.5Zn0.5)O3) ceramics

“…Here, the lead-based dielectrics ceramics were not listed for comparison since their energy storage performance is much better than lead-free compounds. 14 It is seen that the high energy density is always associated with high P max and large E b . Comparing with BT-BZS ceramics that exhibit a high E b (≥270 kV/cm) but low P max (≤20 μC/ cm 2 ), our x = 0.65 sample demonstrates the simultaneously high W re and high η, which is superior to the BT-BZS ceramic.…”

“…It should be mentioned that the energy storage performance of BF‐based lead‐free ceramics was once reported, and thus, a comparison between our optimized samples and the reported results of those BF‐based lead‐free ceramics is useful, as listed in Table 1 in terms of ferroelectric and energy storage properties. Here, the lead‐based dielectrics ceramics were not listed for comparison since their energy storage performance is much better than lead‐free compounds 14 . It is seen that the high energy density is always associated with high P max and large E b .…”

“…The energy storage efficiency ( η ) is defined as η = W re / W st . In the past two decades, various dielectric materials, including linear dielectrics, antiferroelectrics (AFEs), relaxors, and layered composites, have been explored for their energy storage properties 4‐15 . Hao et al 5 and Liu et al 6 presented the comprehensive reviews on recent progress of AFE energy storage.…”

“…In the past two decades, various dielectric materials, including linear dielectrics, antiferroelectrics (AFEs), relaxors, and layered composites, have been explored for their energy storage properties. [4][5][6][7][8][9][10][11][12][13][14][15] Hao et al 5 and Liu et al 6 presented the comprehensive reviews on recent progress of AFE energy storage. Han et al 11 reviewed the recent advances of PVDF-based composites dielectrics for energy storage.…”

“…For examples, Ma et al 13 reported an ultra-high W re of ~85 J/cm 3 in Pb 0.92 La 0.08 Zr 0.95 Ti 0.05 O 3 thick films deposited on LNObuffered Ni substrates. Yang et al 14 revealed a high W re up to 6.43 J/cm 3 on Pb[(Lu 0.5 Nb 0.5 ) 0.97 (Mg 0.5 W 0.5 ) 0.03 ]O 3 bulk ceramics. In response to the promotion of environmental protection, demand for environment friendly dielectric capacitors for energy storage is increasing.…”