Design an architecture with the ability to improve breakdown strength has critical role to play for performance enhancement in energy storage capability. In this work, we report that the composite films with loaded with one dimension (1D) core-shell structured NaNbO₃@SiO₂ nanowires ([email protected]₂ NWs) are prepared and achieved significantly performance improvement in energy storage capability. The finite element simulation and experiment results both confirm the superiority of the 1D core-shell structured [email protected]₂ NWs in improving the energy density of the nanocomposite films. Especially, the nanocomposite films filled with 3 vol.% [email protected]₂ NWs show a large discharged energy density of 12.1 J cm^-3, which is ≈ 243% over the bare PVDF (4.98 J cm^-3) and ≈ 1008% greater than biaxially oriented polypropylenes (BOPP) (≈ 1.2 J cm^-3 at 640 MV m^-1). Therefore, this nanocomposite film can be considered as potential high-performance dielectric materials for next-generation pulsed power capacitor applications.

设计具有提高击穿强度能力的体系结构对于提高储能能力的性能起着至关重要的作用。在这项工作中，我们报告制备了负载一维（1D）核壳结构的NaNbO ₃ @SiO ₂纳米线（[受电子邮件保护] ₂ NWs）的复合膜，并显着提高了储能性能。有限元模拟和实验结果均证实了一维核壳结构[受电子邮件保护] ₂ NW在改善纳米复合膜能量密度方面的优势。尤其是，纳米复合膜填充了3％（体积）[电子邮件保护] ₂纳米线表现出12.1Ĵ厘米大的放电能量密度^-3，其在所述裸PVDF是≈243％（4.98Ĵ厘米^-3）和≈1008％大于双轴取向聚丙烯（BOPP）（≈1.2Ĵ厘米^-3在640 MV m ^-1）。因此，该纳米复合膜可被视为下一代脉冲功率电容器应用的潜在高性能介电材料。