“…Among the various energy storage technologies, dielectric capacitors exhibit fast charge–discharge speed and high power density. Therefore, they play a vital role in many energy applications. ,,− The energy storage performance-related parameters of dielectric capacitors, such as the recoverable energy storage density ( W rec ) and efficiency ( η ), can be calculated using the following formulas: − W tot = prefix∫ 0 P max E d P W rec = prefix∫ P normalr P max E d P η = W rec W tot × 100 % where W tot is the total energy storage density and P r , P max , and E refer to the remanent polarization, maximum polarization, and applied field, respectively. Two decisive parameters should be considered to achieve outstanding energy storage performance.…”