Abstract
In this study, a ceramic with a 0.7Bi0.5K0.5TiO3-0.3SrTiO3 composition was designed to enhance its energy storage performance via rolling technology. Temperature had a great influence on microstructural refinement and energy storage density. A high recoverable energy storage density of 2.31 J/cm3 and efficiency of 77.7% were obtained under an optimal sintering temperature of 1175 °C. Specifically, a pulsed circuit indicated that stored energy was quickly released at a sub-microsecond scale of 0.26 μs. This study showed that Bi0.5K0.5TiO3-based ceramics, as new lead-free bismuth-based perovskite-type solid-solutions are promising candidates in pulsed-power applications.
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