Fig. 3: Energy storage performance of high-entropy SPE.

a Electric field-dependent unipolar P-E loops of SLTT-0.30 ceramic. b Calculated Wrec, Wtot and η of SLTT-0.30 ceramic. c Comparison of Sconfig, Wrec, η, and Eb between SLTT-0 and SLTT-0.30 ceramics. d Comparison of Wrec and η between SLTT-0.30 and reported lead-free bulk ceramics. e Comparison of Wrec between SLTT-0.30 and reported lead-free bulk ceramics with a η > 90%.