Relaxor antiferroelectric ceramics with ultrahigh efficiency for energy storage applications

Enhancing the efficiency in energy storage capacitors minimizes energy dissipation and improves device durability. A new efficiency-enhancement strategy for antiferroelectric ceramics, imposing relaxor characteristics through forming solid solutions with relaxor compounds, is demonstrated in the pre...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 2019-12, Vol.39 (15), p.4735-4742
Main Authors: Mohapatra, Pratyasha, Fan, Zhongming, Cui, Jun, Tan, Xiaoli
Format: Article
Language:English
Subjects:
Bi(Zn2/3Nb1/3)O3
Electric hysteresis
Energy storage efficiency
Relaxor antiferroelectric
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Summary:Enhancing the efficiency in energy storage capacitors minimizes energy dissipation and improves device durability. A new efficiency-enhancement strategy for antiferroelectric ceramics, imposing relaxor characteristics through forming solid solutions with relaxor compounds, is demonstrated in the present work. Using the classic antiferroelectric (Pb0.97La0.02)(Zr1-x-ySnxTiy)O3 as model base compositions, Bi(Zn2/3Nb1/3)O3 is found to be most effective in producing the “relaxor antiferroelectric” behavior and minimizing the electric hysteresis. Specifically, a remarkable energy storage efficiency of 95.6% (with an energy density of 2.19 J/cm3 at 115 kV/cm) is achieved in the solid solution 0.90(Pb0.97La0.02)(Zr0.65Sn0.30Ti0.05)O3–0.10Bi(Zn2/3Nb1/3)O3. The validated new strategy, hence, can guide the design of future relaxor antiferroelectric dielectrics for next generation energy storage capacitors.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2019.07.050