Dr. Hong Wang

Southern University of Science and Technology
Dielectric Materials for Energy Storage Capacitors
Dielectric capacitors with the prominent features of ultrafast charging–discharging rates and ultrahigh power densities are ubiquitous components in modern electronics. To meet the growing demand for electronics miniaturization, dielectric capacitors with high energy storage properties are extensively researched. The tutorial will present an overview of the recent progress in the field of nanostructured dielectric materials targeted for capacitive energy storage applications. This tutorial commences with a brief introduction of the fundamentals of dielectric materials, including primary parameters, a library of dielectric polymers, polymer nanocomposites, and bulk ceramics, and multiscale structures. Both commercial products and the latest research results are covered. While general design considerations are briefly discussed, emphasis is placed on material specifications oriented toward the dielectric energy storage applications, such as dielectric properties, temperature stability, energy density, and charge-discharge efficiency. Emphases are placed on the relationship between multiscale structures and energy storage properties and the rational structure design principles in dielectric materials. The advantages and shortcomings of the existing dielectric materials are identified. Challenges along with future research opportunities are highlighted at the end of this tutorial.
Presenter Bio

Dr. Hong Wang, is a Chair Professor of the Department of Materials Science and Engineering, and the Dean of Graduate School at Southern University of Science and Technology. Professor Wang ’s main research interests include dielectric ceramics, multifunctional composites, dielectric measurements. She has developed a series of novel dielectric ceramics with ultra-low sintering temperatures for Low Temperature Cofired Ceramics (LTCC) devices, multifunctional microwave composites with unique magnetic and electric properties, scalable nanocomposites for energy storage and electronic package applications. Prof. Wang has authored and co-authored ~340 refereed papers, with h-index 55 and ~11000 citations according to Google Scholar. She holds ~35 Chinese patents, 1 USA patent and 1 IEC international standard. She was awarded the Distinguished Young Scholars from the National Natural Science Foundation of China in 2010, Changjiang Scholars Distinguished Professor from the Ministry of Education of China in 2011, elevated to a Fellow of the Institute of Electrical and Electronics Engineers (IEEE Fellow) in 2020, and elected as the funding chair of Women Scientists Association at Shenzhen in 2021.

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