Liu Yongxian, Liu Guangjun, Jiao Yayao, Wang Zaixing, Bao Shumin, Hua Xiufu, Wang Lingling, Tang Bo, Xiong Zhiyuan, Wei Renbo
School of Chemical Engineering, Northwest University, Xi'an 710069, China.
Yangtze Delta Region Institute, Tsinghua University, Jiaxing 314006, China.
Nanomaterials (Basel). 2025 May 5;15(9):696. doi: 10.3390/nano15090696.
Polymer-based nanocomposites have demonstrated significant strategic value in dielectric energy storage systems due to their tunable high energy density and rapid charge-discharge efficiency. Poly(arylene ether nitrile) (PEN), owing to its superior thermal stability, high mechanical strength, chemical corrosion resistance, and outstanding dielectric properties, exhibits distinct advantages in the field of high-performance dielectric energy storage devices. This review focuses on key strategies for enhancing the dielectric energy storage performance of PEN-based composites, emphasizing molecular engineering approaches, microstructural design, the multiscale interface regulation mechanisms within composite systems, and the optimization of the dielectric constant () and breakdown strength () through thermal stretching. Furthermore, the potential of PEN-based polymer composites in energy storage devices is highlighted, and future research directions are proposed, including the establishment of a dynamic balance mechanism between dielectric/insulating properties and the development of novel composite systems that offer both high energy storage density and stability. These advancements will provide the material foundation for the miniaturization and intellectualization of advanced pulse power equipment.
基于聚合物的纳米复合材料因其可调的高能量密度和快速的充放电效率，在介电储能系统中显示出显著的战略价值。聚（亚芳基醚腈）（PEN）由于其优异的热稳定性、高机械强度、耐化学腐蚀性和出色的介电性能，在高性能介电储能器件领域表现出明显的优势。本综述重点关注提高基于PEN的复合材料介电储能性能的关键策略，强调分子工程方法、微观结构设计、复合体系内的多尺度界面调控机制，以及通过热拉伸优化介电常数（）和击穿强度（）。此外，还突出了基于PEN的聚合物复合材料在储能器件中的潜力，并提出了未来的研究方向，包括建立介电/绝缘性能之间的动态平衡机制，以及开发兼具高储能密度和稳定性的新型复合体系。这些进展将为先进脉冲功率设备的小型化和智能化提供物质基础。
