TY - JOUR
T1 - Bismuth sodium titanate-barium titanate-barium zirconate titanate relaxor ferroelectric ceramics with high recoverable energy storage density
AU - Chen, Yanqin
AU - Fan, Huiqing
AU - Hou, Dingwei
AU - Jia, Yuxin
AU - Zhang, Ao
AU - Wang, Weijia
N1 - Publisher Copyright:
© 2022 Elsevier Ltd and Techna Group S.r.l.
PY - 2022/9/15
Y1 - 2022/9/15
N2 - Lead-free relaxor ferroelectric ceramics are attracting attention due to their fast charge/discharge and environmentally friendly properties. In this work, the bismuth sodium titanate-barium titanate-barium zirconate titanate [(0.94Bi0·51Na0·47TiO3-0.06BaTiO3)-xBaZr0.3Ti0·7O3, abbreviated as BNBT-100xBZT] relaxor ferroelectric ceramics were synthesized by the solid-state reaction technique. The microstructure, energy storage properties, and conductivity mechanism of BNBT-100xBZT were analyzed as the barium zirconate titanate doping content changed. All BNBT-100xBZT have a single perovskite structure by XRD. The BNBT-5BZT ceramics was found to be tetragonal by Rietveld refinement. Moreover, the doping of BZT is beneficial to optimize the breakdown strength (BDS). Owing to the higher BDS, an effective energy storage density of 1.457 J/cm3 was obtained under 122 kV/cm in BNBT-5BZT with an energy storage efficiency (η) of 81.9%. In addition, BNBT-5BZT has outstanding temperature and cycling stability. The results indicate that BNBT-5BZT ceramics is excellent candidates for energy storage devices.
AB - Lead-free relaxor ferroelectric ceramics are attracting attention due to their fast charge/discharge and environmentally friendly properties. In this work, the bismuth sodium titanate-barium titanate-barium zirconate titanate [(0.94Bi0·51Na0·47TiO3-0.06BaTiO3)-xBaZr0.3Ti0·7O3, abbreviated as BNBT-100xBZT] relaxor ferroelectric ceramics were synthesized by the solid-state reaction technique. The microstructure, energy storage properties, and conductivity mechanism of BNBT-100xBZT were analyzed as the barium zirconate titanate doping content changed. All BNBT-100xBZT have a single perovskite structure by XRD. The BNBT-5BZT ceramics was found to be tetragonal by Rietveld refinement. Moreover, the doping of BZT is beneficial to optimize the breakdown strength (BDS). Owing to the higher BDS, an effective energy storage density of 1.457 J/cm3 was obtained under 122 kV/cm in BNBT-5BZT with an energy storage efficiency (η) of 81.9%. In addition, BNBT-5BZT has outstanding temperature and cycling stability. The results indicate that BNBT-5BZT ceramics is excellent candidates for energy storage devices.
KW - Bismuth sodium titanate
KW - Breakdown strength
KW - Energy storage
KW - Energy storage efficiency
KW - Relaxor ferroelectrics
UR - https://www.scopus.com/pages/publications/85131410412
U2 - 10.1016/j.ceramint.2022.05.392
DO - 10.1016/j.ceramint.2022.05.392
M3 - 文章
AN - SCOPUS:85131410412
SN - 0272-8842
VL - 48
SP - 26894
EP - 26903
JO - Ceramics International
JF - Ceramics International
IS - 18
ER -