Recent Advances in Preparation and Application of
Energy storage polymers are critical to modern microelectronics, electric vehicles, and wearable devices. Capacitor
Capacitor energy storage devices are the focus of contemporary research, with film dielectric capacitors being the focus of mainstream research. Research on polymers—particularly polypropylene—has yielded numerous innovations, but their energy storage performance and breakdown resistance under extreme conditions remain unsatisfactory.
Wu, S.; Xu, L.; Zhu, K.; Song, B.; Yan, H.; Shen, B.; Zhai, J. Improved piezoelectricity and energy storage performance simultaneously achieved in -preferentially oriented Bi0.50.5Na0.5TiO3–BaTiO3–BiMnO3 thin films grown on Nb-doped SrTiO3 single-crystalline substrates. J. Eur. Ceram.
In addition, changing the type of compatibilizer can also have a great impact on the film; for example, replacing the compatibilizer with polypropylene-grafted acrylic acid (PP-g-AA) to make a modified composite film at 446 MV m −1 and 120 °C led to an energy storage density of 2.28 J cm −3, which is 670% of that of PP .
The rhombohedral phase ZrO 2 and Hf 0.5 Zr 0.5 O 2 films are highly attractive for flexible energy storage capacitors, as they are typically ferroelectric without the need for any wake-up cycling.
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