Recent advances in lead-free dielectric materials for energy storage

Bi‐modified SrTiO3‐based ceramics for high‐temperature energy storage applications

“…Thus, large P max , low P r , and high breakdown strength (BDS) are essential for dielectric materials in order to achieve high energy storage density and energy efficiency, which are the most important parameters for evaluating the dielectric energy storage capacitors. Lead‐based dielectric materials have been intensively studied, exhibiting excellent energy storage properties, however, the restriction of toxic lead element prompts scientists to solicit to lead‐free alternatives for more sustainable energy storage applications …”

“…Lead-based dielectric materials have been intensively studied, exhibiting excellent energy storage properties, however, the restriction of toxic lead element prompts scientists to solicit to lead-free alternatives for more sustainable energy storage applications. 5 In recent years, much effort has been made to improve the energy density of lead-free dielectric materials. Enhancing BDS is an efficient approach to improve energy density because the energy density is proportional to the square of applied electric field with the assumption that the permittivity is independent of the electric field.…”

Enhanced Dielectric Permittivity of Optimized Surface Modified of Barium Titanate Nanocomposites

“…Dielectric materials are ubiquitously used today and novel materials with extraordinary properties are being explored for advanced applications, such as electric stress control for cables and joints to shield current loss at concentrated points, energy storage as capacitors [1][2][3], embedded passive devices, photovoltaics and battery electrode materials that enhance the ionic conductivity and thermal stability of the electrolyte as shown in Figure 1. Typically, materials used in these applications must possess high dielectric and mechanical strength, high thermal conductivity to alleviate thermal stresses, good ductility, and high glass transition and curie temperatures to prevent premature failure.…”

Dielectric Properties of P(VDF-TrFE-CTFE) Composites Filled with Surface-Coated TiO2 Nanowires by SnO2 Nanoparticles

“…With the rapid growth of the microelectronics industry, electron components are integrated and miniaturized. Polymer dielectrics are widely applied in flexible displays, capacitors and energy storage devices because of good flexibility, easy processing and light-weight [1][2][3][4][5][6][7]. A relatively high dielectric constant is critical for dielectric materials.…”