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High Energy Storage Performances For Bismuth-Containing Lead-Free Dielectrics With Relaxor Characteristics, Xi Kong
University of Wollongong Thesis Collection 2017+
With the development of renewable energy sources such as wind and solar to potentially replace the traditional fossil fuels, new energy storage devices are required to collect and store the electrical energy generated from the renewable energy sources. Dielectric capacitors featuring high charge-discharge rate and high power density, are considered as promising candidate for the new energy storage devices. In addition, the dielectric capacitors are widely used in electrical and electronic industries due to their high power density, low cost, and long cycling life. The energy density of dielectric capacitors, however, is inferior to other energy storage devices such as …
Environmentally Friendly Bismuth-Based Relaxor And Antiferroelectric Ceramics For Energy Storage Applications, Letao Yang
University of Wollongong Thesis Collection 2017+
In step with the development of energy storage technology and the power electronic industry, dielectric capacitors with high energy density are in high demand. Many modern applications require the dielectric capacitors work under high temperature environment (> 150 °C), which poses challenges for commonly used polymer capacitors. On the other hand, the ceramic capacitors benefited from their inorganic nature, are potential for high-temperature applications. Although lead-based ceramics possess many advantages such as high permittivity, the usage of lead is restricted by some regulations due to its negative effects on the environment and human health. Bismuth ions Bi3+ have a …