Energy storage properties of samarium-doped bismuth sodium titanate-based lead-free ceramics

Achieving high energy density/efficiency in light-metal-element-rich relaxor ferroelectric ceramics by annihilating volatile Schottky defects

“…6(f). 9,12,14,15,21,28,56–62 The results clearly show that the x = 4 ceramic is superior to other lead-free energy storage ceramics in terms of unit mass and lightweight capability. The pulsed charge–discharge performance is also crucial for practical dielectric energy storage applications, and relevant measurements are shown in Fig.…”

Configuration-entropy effects on BiFeO3–BaTiO3 relaxor ferroelectric ceramics for high-density energy storage

“…The calculated maximum ρ of 27.4 × 10 −3 J kV −1 ·cm −2 at 10 Hz was attained at x = 0.15 and is larger than those reported in BT-, BF-, NN-, KNN- or BNT-based ceramics. 53 Furthermore, a high W rec of 10.5 J cm −3 and η of 87% were achieved in 0.62BiFeO 3 –0.3BaTiO 3 –0.08Nd(Zn 0.5 Zr 0.5 )O 3 multilayer ceramic (7-active layer) at an E field of 700 kV cm −1 . 45 An ultrahigh W rec of 18.5 J cm −3 with an E b of 995 kV cm −1 was also reported in the relaxor–antiferroelectric 0.90NaNbO 3 –0.10BiFeO 3 ceramic.…”

“…5b, c, e and f using the relation r = W rec /DE (ref. 53) and are presented in Table S2 and E s is the initial E eld. The calculated maximum r of 27.4 × 10 −3 J kV −1 $cm −2 at 10 Hz was attained at x = 0.15 and is larger than those reported in BT-, BF-, NN-, KNN-or BNTbased ceramics.…”

“…5b, c, e and f using the relation ρ = W rec /Δ E (ref. 53) and are presented in Table S2 (ESI) †. Δ E is E b − E s , and E s is the initial E field.…”

Innovative Design of BNKT-xSLZT Ceramics: Maximizing the Polarization Difference for Enhanced Energy Storage

“…Tang et al . proposed the concept of ES intensity ( ρ ), denoted as W rec / E , to evaluate the ESPs of ceramics . As depicted in Figure c, BNKT-0.15SLZTVPP demonstrates a substantial ρ [>140 J/(kV·m 2 )] across a broad spectrum of E fields ranging from 150 to 470 kV/cm, indicating favorable ESPs within this expansive E -field regime.…”