Enhancement in the energy storage performance of P(VDF-HFP)-based composites by adding PLZST inorganic nanoparticles

Abstract

Inorganic filler/polymer matrix composites with excellent energy storage performance are important components of thin film capacitors and basic implements in electronic and power systems. In this work, Pb0.96La0.04[(Zr0.55Sn0.45)0.92Ti0.08]0.99O3 antiferroelectric inorganic...

Improvement of high‐temperature energy storage properties of polyimide‐based nanocomposites with sandwich structure

“…Due to the low loading of SrTiO 3 , it can be evenly dispersed within the matrix, with the interfaces forming scattering centers that may impede carrier mobility, thus increasing the breakdown E b . 4,[32][33][34] With the increase of SrTiO 3 filler, the composite introduces more defects and changes the original good quality, such as agglomeration, connections, and so on, thus decreasing the E b .…”

“…Polymer-based capacitors are superior to ceramic-based capacitors in terms of breakdown field strength, power density, processing difficulty, and miniaturization, so they are used in a wider range of applications. [1][2][3][4][5][6] The energy density formula of a linear dielectric is expressed in English as U e = 1/2ε 0 ε r E 2 , where ε 0 and ε r are the vacuum and relative permittivity, respectively, and E is the electric field strength. Both ε 0 and breakdown strength…”

Improved energy storage performance of sandwich-structured P(VDF-HFP)-based nanocomposites by the addition of inorganic nanoparticles

“…7 According to the above formula, the U d of polymer dielectric materials is closely related to the e r and E. Based on the above reasons, enhancing the properties of polymer-based nanocomposites through adding nanofillers with high permittivity has been extensively studied. [8][9][10] Unfortunately, although the nanofillers improve the e r of nanocomposites, excessive nanofillers are prone to agglomeration in the polymer matrix, thus leading to a breakdown strength (E b ) decrease. In addition, the electric field distribution of the nanocomposites is uneven because of the great difference in e r between the nanofillers and the polymer, which also inhibits the improvement of the E b and affects the energy storage performance.…”

“…Based on the above reasons, enhancing the properties of polymer-based nanocomposites through adding nanofillers with high permittivity has been extensively studied. 8–10…”

Polyimide Nanocomposites Filled with SiO2 Nanoparticles of Different Sizes for High-Temperature Energy Storage

“…Ceramic-based dielectric materials have a wider temperature working range than polymers, but they have lower energy storage density, smaller breakdown field strength, and poorer toughness, which limits their further application. However, most of the commercially available polymer dielectric materials are not capable of operating at high temperatures for extended periods. − For example, biaxially oriented polypropylene (BOPP) reduces its energy storage density by nearly 60% under operating conditions from room temperature to 100 °C. In order to make it work properly, an auxiliary cooling system needs to be added, but this is incompatible with the miniaturized electronic devices now being developed.…”