Fig. 2: Energy storage and charge/discharge performance of (1-x)KNN-xSNZ ceramics.
a Comparisons of the energy storage properties between the studied ceramics (x ≥ 0.14) in this work and other recently reported KNN-based ceramics. b Comparisons of the Wrec between the x = 0.15 ceramic and other recently reported KNN-based ceramics at various electric fields. Charge/discharge performance of x = 0.15 ceramic: c underdamped discharge waveforms and d corresponding CD and PD values at various electric fields; e overdamped discharge waveforms, f discharge energy density, and g corresponding Wd and t0.9 values at various electric fields (R = 300 Ω). h Comparisons of the Wd and test electric field between the x = 0.15 ceramic in this study and recent publications (bulk ceramics as well as thick films).
