Effect of BaTiO3 nanowires on dielectric properties and energy storage density of polyimide composite films

Significantly enhanced dielectric constant and energy storage properties in polyimide/reduced BaTiO3composite films with excellent thermal stability

“…1 The dielectric constant and loss of BT/PI composite materials reported in literature. [36][37][38][39][40][41][42][43] typical perovskite structure, and no secondary phases were detected. The rBT exhibited a tendency to transform from tetragonal phase to cubic phase, which can be seen from the (002) and (200) peaks.…”

High-Temperature Polyimide Dielectric Materials for Energy Storage

“…Improvements in this area will make nanocomposites less susceptible to breakdown [19]. Wang et al [20] successfully prepared BT nanowire/PI (BT-NW/PI) and BT nanoparticle/PI (BT-NP/PI) composites with low volume fractions. Due to strong interfacial polarization, the ε r of BT-NW filled composites was greater than that of BT-NP/PI.…”

Grain size engineered Ba0.9Sr0.1Ti0.9Hf0.1O3‐Na0.5Bi0.5TiO3 relaxor ceramics with improved energy storage performance

“…Figure 5B shows a graph comparing the discharge energy density and energy efficiency results of the present investigation with previous literature. 14,16,23,[25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] The graph ( Figure 5B) suggests that the optimized material (ie, BN9) lies in the category of high energy density materials with moderate energy efficiency. It should be noted that there always exists some contradiction in designing a lead-free energy storage ceramic material.…”