Ultrahigh charge–discharge efficiency and high energy density of a high-temperature stable sandwich-structured polymer

Abstract

A new generation of high-temperature dielectric materials toward capacitive energy storage is highly demanded as power electronics are always exposed to elevated temperatures in high-power applications. Polymer dielectric materials, an...

Regulation of Interfacial Polarization and Local Electric Field Strength Achieved Highly Energy Storage Performance in Polyetherimide Nanocomposites at Elevated Temperature via 2D Hybrid Structure

“…Average lower leakage current density indicates that the 2D BNNSs-TiO 2 nanofillers could substantially diminish the conductivity loss by effectively suppressing charge injection from the electrode/dielectric interface, and this charge blocking effect facilitates the electric field strength and dielectric properties. [59][60][61][62][63][64][65][66][67] Generally, the above simulation results are in conformance with the experimental results.…”

Ultrahigh energy storage performance of all-organic dielectrics at high-temperature by tuning the density and location of traps

“…The influence of the trap layer location on the breakdown can be attributed to the shape characteristics of the breakdown path. In addition, the effect of trap parameters on the conductivity is explored, and the results showed that the trap density and location have Comparisons of U and the corresponding electric field of this work and other reported composites at 150 1C with 90% efficiency 1,3,4,9,10,12,13,25,29,[52][53][54][55][56][57][58][59][60][61]…”

Flexible cyanoethyl cellulose-based nanocomposites with superior energy storage capability

“…[1][2][3][4][5][6][7][8][9] However, the energy density of the best commercially available dielectric polymer, biaxially oriented polypropylene (BOPP), is relatively low of 2.2 J cm À3 at 500 MV m À1 , which is 1-2 orders of magnitude smaller than that of batteries (B 200-500 J cm À3 ). [10][11][12][13] Theoretically, an outstanding discharged energy density (U d ) of dielectric materials could be achieved through regulating electric displacement (D) and breakdown strength (E b ). [14][15][16][17] Therefore, the development of high-performance film capacitors is an enormous challenge for highly integrated and miniaturized electronic systems.…”