Luo Hang, Wang Fan, Guo Ru, Zhang Dou, He Guanghu, Chen Sheng, Wang Qing
State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan Province, 410083, China.
Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan Province, 411105, China.
Adv Sci (Weinh). 2022 Oct;9(29):e2202438. doi: 10.1002/advs.202202438. Epub 2022 Aug 18.
Polymer dielectrics are attracting increasing attention for electrical energy storage owing to their advantages of mechanical flexibility, corrosion resistance, facile processability, light weight, great reliability, and high operating voltages. However, the dielectric constants of most dielectric polymers are less than 10, which results in low energy densities and limits their applications in electrostatic capacitors for advanced electronics and electrical power systems. Therefore, intensive efforts have been placed on the development of high-energy-density polymer dielectrics. In this perspective, the most recent results on the all-organic polymer dielectrics are summarized, including molecular structure design, polymer blends, and layered structured polymers. The challenges in the field and suggestions for future research on high-energy-density polymer dielectrics are also presented.
聚合物电介质因其具有机械柔韧性、耐腐蚀性、易于加工、重量轻、可靠性高和工作电压高等优点，在电能存储方面正吸引着越来越多的关注。然而，大多数介电聚合物的介电常数小于10，这导致能量密度较低，并限制了它们在先进电子和电力系统的静电电容器中的应用。因此，人们已投入大量精力来开发高能量密度的聚合物电介质。从这个角度出发，总结了全有机聚合物电介质的最新研究成果，包括分子结构设计、聚合物共混物和层状结构聚合物。还介绍了该领域面临的挑战以及对高能量密度聚合物电介质未来研究的建议。
