With the evolution of power electronic system to miniaturization and integration, dielectric capacitors are extensively studied in electric power systems such as electron beam and direction energy weapons owing to outstanding energy storage density and low loss. In this work, Pb_0.97La_0.02ZrO₃ (PLZ) films were deposited on LaNiO₃ (LNO)/Pt and LNO electrodes using sol-gel method, respectively. High spontaneous polarization (P_s ~ 91.3 μC cm⁻²) and low remanent polarization (P_r ~ 7.3 μC cm⁻²) can be obtained from PLZ/LNO/Pt/TiO₂/SiO₂/Si with energy storage density up to 25.4 J cm⁻³, which could be explained by good ohmic contact between films and composite electrodes. Besides, recoverable energy storage of films exhibits outstanding temperature stability (25.9–25.3 J cm⁻³) over -60 - 20 °C. These results suggest that LNO/Pt composite electrodes can be used to optimize PLZ films properties, which could be considered as a valid way for developing wide temperature range energy-storage capacitors.

随着电力电子系统向小型化和集成化的发展，由于出色的储能密度和低损耗，介电电容器在电子束和定向能武器等电力系统中得到了广泛的研究。在这项工作中，分别使用溶胶-凝胶法在LaNiO ₃（LNO）/ Pt和LNO电极上沉积了Pb _0.97 La _0.02 ZrO ₃（PLZ）膜。高自发极化（P_小号〜91.3μC厘米^-2）和低的剩余极化（P _{- [R}〜7.3μC厘米^-2）可从获得PLZ / LNO /铂/氧化钛₂ /二氧化硅₂/ Si的储能密度高达25.4 J cm ^-3，这可以通过薄膜与复合电极之间的良好欧姆接触来解释。此外，薄膜的可恢复能量存储在-60至20°C的温度范围内具有出色的温度稳定性（25.9–25.3 J cm ^-3）。这些结果表明，LNO / Pt复合电极可用于优化PLZ薄膜的性能，这可被视为开发宽温度范围储能电容器的有效方法。