Polypropylene as energy storage material

Are polymer dielectrics a good energy storage material?

Polymer dielectrics with low-loss and high-temperature tolerance are extremely desirable as electrical energy storage materials for advanced electronics and electrical power applications. They can allow fast switching rates during power conversion and therefore achieve high power densities without thermal issues.

What is the energy storage density of biaxially oriented polypropylene (BOPP) film?

Although Eb seems to be the most critical parameter in determining Um, the biaxially oriented polypropylene (BOPP) film with a high Eb of 600 MV/m, the state-of-the-art commercially available dielectric polymer, can only exhibit an energy storage density of 1-2 J/cm 3 due to the low intrinsic ε (2.2) of PP [ 11, 12].

Is polypropylene a good material for film capacitor?

Polypropylene (PP) is the state-of-the-art dielectric material for film capacitor. However, the further progress of PP is impeded by its low permittivity and low energy storage density. Adding high-permittivity (high-k) nano-filler into PP matrix to prepare nanocomposites turns out to be a promising approach.

Does pp/BT/BN nanocomposites improve energy storage density?

Improved electric breakdown strength, dielectric constant, and energy storage density were achieved in PP/BT/BN nanocomposites. Polypropylene (PP) is the state-of-the-art dielectric material for film capacitor. However, the further progress of PP is impeded by its low permittivity and low energy storage density.

Is polypropylene a dielectric polymer?

Here, we explore polypropylene (PP), the state of the art dielectric polymer, and present an innovative approach to substantially improve the thermal stability and concurrently reduce the dielectric loss of PP. In particular, cross-linkable antioxidant groups, hindered phenol (HP), are incorporated into PP via well-controlled chemical synthesis.

What is the energy storage density of linear polymer dielectrics?

Generally, the energy storage density (U e) of linear polymer dielectrics is related to the following equation: (1) U e = 1 2 ε r ε 0 E b 2 wherein ε r, ε 0, and E b, respectively correspond to the dielectric constant of the materials, vacuum permittivity, and the breakdown strength of the materials [, , , ].