TY - JOUR
T1 - Sodium Tantalate doping-induced phase structure Regulation and electrical property enhancement in lead-free (Bi0.5Na0.5) 0.94Ba0.06TiO3 ceramics
AU - Wang, Juanjuan
AU - Ma, Pengkang
AU - Chai, Qizhen
AU - Lai, Fusheng
AU - Du, Hongliang
AU - Jin, Li
AU - Peng, Zhanhui
AU - Chao, Xiaolian
AU - Yang, Tianyi
N1 - Publisher Copyright:
© 2025
PY - 2025/3
Y1 - 2025/3
N2 - Ceramics with superior energy storage properties, serving as the dielectric layer of capacitors, are crucial for constructing high performance capacitors. In this study, we designed and characterized (1-x) (0.94Bi0.5Na0.5Ti03-0.06BaTiO3)-xNaTaO3 (BNBT-xNT) lead-free ceramics with enhanced energy storage capabilities. The incorporation of NaTaO3 induced a transition from non-polar to polar relaxation phase and transformed nano-domains into nano-micro domains. Under an applied electric field of 250 kV/cm, the 0.92 BNBT-0.08NT ceramics exhibited significantly higher effective energy storage density Wrec (3.07 J/cm3) and energy storage efficiency η (68 %). Moreover, these ceramics demonstrated remarkable discharge energy density Wd (1.1 J/cm3), high power density PD (75 MW/cm3), and fast charge and discharge speed t0.9 (258 ns). The exceptional stability in terms of energy storage performance suggests that BNBT-0.08NT ceramics hold great potential for pulse power applications.
AB - Ceramics with superior energy storage properties, serving as the dielectric layer of capacitors, are crucial for constructing high performance capacitors. In this study, we designed and characterized (1-x) (0.94Bi0.5Na0.5Ti03-0.06BaTiO3)-xNaTaO3 (BNBT-xNT) lead-free ceramics with enhanced energy storage capabilities. The incorporation of NaTaO3 induced a transition from non-polar to polar relaxation phase and transformed nano-domains into nano-micro domains. Under an applied electric field of 250 kV/cm, the 0.92 BNBT-0.08NT ceramics exhibited significantly higher effective energy storage density Wrec (3.07 J/cm3) and energy storage efficiency η (68 %). Moreover, these ceramics demonstrated remarkable discharge energy density Wd (1.1 J/cm3), high power density PD (75 MW/cm3), and fast charge and discharge speed t0.9 (258 ns). The exceptional stability in terms of energy storage performance suggests that BNBT-0.08NT ceramics hold great potential for pulse power applications.
KW - BiNaTi0-BaTiO-NaTaO ceramic
KW - Energy storage properties
KW - Frequency stability
KW - Lead-free perovskite
UR - https://www.scopus.com/pages/publications/85215829698
U2 - 10.1016/j.cap.2025.01.013
DO - 10.1016/j.cap.2025.01.013
M3 - 文章
AN - SCOPUS:85215829698
SN - 1567-1739
VL - 71
SP - 199
EP - 206
JO - Current Applied Physics
JF - Current Applied Physics
ER -