Enhancing Energy Density and Energy Efficiency of Polyetherimide for High-Temperature Capacitor Applications

Abstract

Energy Storage application is crucial for power saving and uses it in different related fields. The high demand for using renewable technology requires high dielectric materials able to be capacitive under high voltage. Recently, there is a high demand to improve new devices that can undergo high temperatures. Many applications required high-temperature conditions such as wind pitch control, pulsed power, power converter, oil produce, air force, aircraft engine, geothermal, and NASA space exploration projects. Over two decades the search for high temperature dielectrics was an interesting project. Based on that it is highly important to choose suitable materials that could exceed at high temperature, have high electrical properties, high mechanical properties, low cost, and are easy to process. To achieve high energy density and high energy efficiency are competing due to the magnitude of the polarity and mobility of the dialectic materials. Modification of high-performance dielectric polymers led to improve the specific properties without altering the other properties. Using a small percentage of defects inside the polymer chain to study the effect of the defect on the polymer properties. Seeking and selecting the appropriate defect is a big challenge due to the different nature of those defects. This approach is starting by selecting the defects that can improve the energy density and energy efficiency without cost money or time. Adding a small amount of structure defect inside the polymer chain or even at the end of the chain could improve the energy density and energy efficiency by two or three times the original polymer without any defect. Those modified polymers with structure and chemical defects illustrate outperformed all the projects that were previously researched and studied.