Fig. 5: Energy storage properties of ceramics.

a P–E hysteresis loops of ceramics. b Wrec and η values under variation with electric field of ceramics. c Weibull distribution and fitting lines of Eb of ceramics. d P–E hysteresis loops and Pmax of Cd3 under variation with electric field. e Variation of energy storage properties of PH, Cd0, Cd3 samples. f Comparison of the Wrec and η of Cd3 with other Pb-based AFE ceramics. g Wrec of Cd3 compared to other ceramics with η > 90%. h Wdis of Cd3 samples under variation with electric field.