High Dielectric and Energy Storage Polymer Dielectrics

Shengtao Li, Yang Feng
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Abstract

The continuous miniaturization of electronic devices and electric equipment requires high energy-storable dielectric capacitors. Therefore, seeking dielectric materials with high power density and high energy density becomes more urgent for ensuring their reliability. However, the contradiction between the increase in the dielectric constant and breakdown strength severely limits the sustainable increase in the energy density of polymer dielectrics. Here, recent advances in high dielectric and energy storage polymer dielectrics will be introduced. Polymer structure is an important factor in determining dielectric properties and energy storage characteristics of polymers, while the relationship between them is still unclear, which hinders the design of high energy-storable polymers. Our emphasis will be given to how to tailor the polymer structures for high dielectric and energy-storable polymer dielectrics. The effect of the polymer structures on the polarization and charge transport characteristics are also carefully discussed for further understanding the structure-property relationship. Finally, the follow-up research is briefly introduced. We intend that this work will help academics and industry toward high energy-storable polymer capacitors.
高介电和储能聚合物介电材料
电子器件和电气设备的不断小型化需要高储能介质电容器。因此,寻求具有高功率密度和高能量密度的介电材料,以保证其可靠性就变得更加迫切。然而,介电常数的增加与击穿强度之间的矛盾严重限制了聚合物电介质能量密度的持续增长。本文将介绍高介电和储能聚合物介电材料的最新进展。聚合物结构是决定聚合物介电性能和储能特性的重要因素,但两者之间的关系尚不清楚,这阻碍了高能量储能聚合物的设计。我们的重点将放在如何为高介电和可储存的聚合物电介质定制聚合物结构。为了进一步了解结构-性能关系,还详细讨论了聚合物结构对极化和电荷输运特性的影响。最后简要介绍了本文的后续研究。我们希望这项工作将有助于学术界和工业界开发高能量储存聚合物电容器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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