In article number 2002131, Qi Li, Jinliang He, and co‐workers summarize the recent progress in the design and synthesis of self‐healing dielectric polymers. The image represents a healing strategy of electrical tree degradation by preferential migration of the enclosed magnetic nanoparticles toward the electrical trees and subsequent healing of the electrical damaged region using a high localized temperature yielded from the aggregated nanoparticles under an oscillating magnetic field.

中文翻译：

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自愈介电聚合物：聚合物中电损伤的自愈（Adv。Sci。21/2020）

李琦，何金亮和他的同事在编号2002131中总结了自修复介电聚合物的设计和合成方面的最新进展。该图像表示通过在电磁磁场作用下从聚集的纳米颗粒产生的高局部温度，通过封闭的磁性纳米颗粒向电气树的优先迁移以及随后的电损伤区域的修复，来修复电气树退化的策略。