The increasing consumption of compact electronics impels us to design high-performance dielectric energy storage materials. Bi_0.5K_0.5TiO₃-based materials, which have been ignored thus far in energy storage applications, possess an ultrahigh stored energy density (W_S = 3.07 J cm⁻³) and recoverable energy storage density (W_R = 2.08 J cm⁻³), as well as excellent thermal stability (the variation in W_R is less than 8% over the range of 25–140 °C) when using a hot-press sintering technique. Moreover, by means of charge–discharge evaluations, the stored energy is released in a very short time (∼0.2 μs), regardless of variations in the temperature. The results presented here strongly indicate that the elaborately designed Bi_0.5K_0.5TiO₃–0.06La(Mg_0.5Ti_0.5)O₃ ceramic is a promising candidate for energy storage applications.

中文翻译：

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探索用于储能应用的新型铋基材料†

紧凑型电子产品的不断增长的消费量促使我们设计高性能的介电储能材料。毕_0.5 ķ _0.5的TiO ₃基材料，其已在能量储存应用迄今忽略，具有超高存储的能量密度（w ^_小号= 3.07Ĵ厘米^-3），并可回收能量存储密度（w ^ _{- [R} = 2.08Ĵ厘米^{- 3}），以及出色的热稳定性（W _R的变化使用热压烧结技术时，在25–140°C的温度范围内小于8％。此外，通过充放电评估，无论温度如何变化，都可以在很短的时间内（〜0.2μs）释放存储的能量。这里给出的结果强烈表明，精心设计的Bi _0.5 K _0.5 TiO ₃ –0.06La（Mg _0.5 Ti _0.5）O ₃陶瓷是储能应用的有希望的候选者。