Abstract
Dielectric polymer materials with high energy density can be used as dielectric materials for developing advanced high-density energy capacitors. In order to realize high energy density, two important parameters, both dielectric permittivity and breakdown strength of the dielectric polymer materials, should be high at the same time in terms of the energy storage equation. Recently, some dielectric polymer materials with hierarchical structures have been reported. This includes the functional fillers with hierarchical structures and array distribution in polymer composites. In addition, recent developing dielectric polymer materials with sandwich structure can arrive at high energy storage because the different layers can lead to high permittivity and high breakdown. In this chapter, we will review these interesting works carefully in order to encourage researchers to provide further works.
Published Version
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