TY - JOUR
T1 - High-energy storage performance in lead-free (1-x)BaTiO3-xBi(Zn0.5Ti0.5)O3 relaxor ceramics for temperature stability applications
AU - Zhao, Xiaobo
AU - Zhou, Zhiyong
AU - Liang, Ruihong
AU - Liu, Feihua
AU - Dong, Xianlin
N1 - Funding Information:
This work was supported by The National Natural Science Foundation of China (Grant no. 11574334), National Key Basic Research Program of China (973 Program, Grant no. 2015CB057502) and JPPT, Grant no. JPPT-125-4-063.
Publisher Copyright:
© 2017 Elsevier Ltd and Techna Group S.r.l.
PY - 2017/8/15
Y1 - 2017/8/15
N2 - In this paper, we prepared lead-free (1-x)BaTiO3-xBi(Zn0.5Ti0.5)O3 (x=0.04, 0.08, 0.10, and 0.14) ceramics by a conventional solid-state reaction technique. Pure perovskite structures and dense microstructures were demonstrated for all the compositions. Interestingly, it was found that the sintering temperature tended to decrease with increasing the Bi(Zn0.5Ti0.5)O3 content. It should be stressed that a low sintering temperature of 1050 °C was utilized for the composition of x=0.14. Moreover, the dielectric permittivity-temperature curve became more flat and the relaxor degree became stronger with the augment in Bi(Zn0.5Ti0.5)O3 content. We also conducted a detailed study on the energy storage performance for all the compositions from 25 °C to 180 °C.We found that relatively temperature-stable energy storage performance could be obtained in the compositions with x=0.08, 0.10 and 0.14 regardless of the evolution of dielectric constant during the test temperature range. In particular, due to a higher field of 12 MV m−1, the discharge energy storage densities of x=0.14 could reach 0.81 J cm−3, 0.80 J cm−3, 0.78 J cm−3, 0.72 J cm−3, and 0.67 J cm−3 with high efficiencies of 94%, 92%, 94%, 88% and 77% at 25 °C, 50 °C, 100 °C, 150 °C, and 180 °C, respectively. All these results demonstrate the (1-x)BaTiO3-xBi(Zn0.5Ti0.5)O3 ceramics are quite promising for temperature-stable energy storage applications.
AB - In this paper, we prepared lead-free (1-x)BaTiO3-xBi(Zn0.5Ti0.5)O3 (x=0.04, 0.08, 0.10, and 0.14) ceramics by a conventional solid-state reaction technique. Pure perovskite structures and dense microstructures were demonstrated for all the compositions. Interestingly, it was found that the sintering temperature tended to decrease with increasing the Bi(Zn0.5Ti0.5)O3 content. It should be stressed that a low sintering temperature of 1050 °C was utilized for the composition of x=0.14. Moreover, the dielectric permittivity-temperature curve became more flat and the relaxor degree became stronger with the augment in Bi(Zn0.5Ti0.5)O3 content. We also conducted a detailed study on the energy storage performance for all the compositions from 25 °C to 180 °C.We found that relatively temperature-stable energy storage performance could be obtained in the compositions with x=0.08, 0.10 and 0.14 regardless of the evolution of dielectric constant during the test temperature range. In particular, due to a higher field of 12 MV m−1, the discharge energy storage densities of x=0.14 could reach 0.81 J cm−3, 0.80 J cm−3, 0.78 J cm−3, 0.72 J cm−3, and 0.67 J cm−3 with high efficiencies of 94%, 92%, 94%, 88% and 77% at 25 °C, 50 °C, 100 °C, 150 °C, and 180 °C, respectively. All these results demonstrate the (1-x)BaTiO3-xBi(Zn0.5Ti0.5)O3 ceramics are quite promising for temperature-stable energy storage applications.
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U2 - 10.1016/j.ceramint.2017.04.051
DO - 10.1016/j.ceramint.2017.04.051
M3 - Article
AN - SCOPUS:85017331262
SN - 0272-8842
VL - 43
SP - 9060
EP - 9066
JO - Ceramics International
JF - Ceramics International
IS - 12
ER -