Polyimid-Energiespeichermaterial
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PI plastic (polyimide) is a non-melting high temperature polymer. Strength, dimensional stability, and creep resistance remain high even at temperatures above 260 °C.
Can polymer-based multilayer composites improve energy storage density?
In recent years, the design of polymer-based multilayer composites has become an effective way to obtain high energy storage density. It was reported that both the dielectric constant and breakdown strength can be enhanced in the P (VDF-HFP)-BaTiO 3 multilayer composites .
Is polyimide a good choice for high-temperature dielectric films?
Polyimide (PI) was found to be the preferred choice for high-temperature dielectric films development due to its thermal stability, dielectric properties, and flexibility. However, it has disadvantages such as a relatively low dielectric permittivity.
Can polyimides be used as polymer materials?
In this work, a series of polyimides were investigated as potential polymer materials for this application. Polyimide with high dielectric constants of up to 7.8 that exhibits low dissipation factors (<1%) and high energy density around 15 J / cm 3, which is 3 times that of BOPP, was prepared.
Why is polyimide a good dielectric material?
Polyimide (PI) has attracted lots of attention because of its high breakdown strength, excellent heat-resistance, simple synthesis process and easy designability of its molecular structure, which make it a great potential high-temperature dielectric material.
What is a high aroma polymer Polyimide (PI)?
High-aroma polymers polyimides (PI) with a Tg of 360 °C have been widely developed as high-temperature electronic applications and advanced composite materials owing to their exceptional thermal stability exceeding 100 °C, electrical insulation performance and stable dielectric performance , , .
What is the discharge energy density of polyimide-based dielectric composites?
Consequently, the optimized composites possess an ultra-high discharge energy density (Ud) of 5.45 J/cm 3 and 3.54 J/cm 3 with a charge–discharge efficiency (η) of 80 % at 150 and 200 °C, respectively, which outperforms the reported polyimide-based dielectric composites.