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E u r o S c i C o n C o n f e r e n c e o n
Nanotechnology &
Smart Materials
Nano Research & Applications
ISSN 2471-9838
O c t o b e r 0 4 - 0 6 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
Nanotechnology & Smart Materials 2018
Page 60
P
olymeric dielectric materials enable film capacitor technology that is critical
in high-power energy storage and pulsed power systems, hybrid electric
vehicles, aerospace power conditioning and advanced electromagnetic weapons.
Conventional high-temperature polymeric dielectric materials dissipate a
large amount of heat as they are involved in continuous operations under high
temperature and strong electric field conditions, which, unfortunately, leads to
thermal runaway and failure of filmcapacitors. We propose to tackle the key issues
associated with thermal runaway in plastic film capacitors by focusing on the
suppression of charge injection fromelectrodes and thermally activatedmigration
of charge carriers, rather than following the traditional design of high-temperature
polymer dielectrics that only concerns the thermal stability of materials. Advanced
composite approaches, thin-film deposition technologies, comprehensive
characterizations of dielectric and capacitive energy storage properties as well as
computational simulations are utilized to cover from structure control to material
preparation, to performance assessment and to device modelling. The ultimate
goal of this study is to develop novel high-temperature polymer dielectrics that can
maintain dielectric stability and energy storage properties under high electric field
and high temperature, and effectively suppress the thermal runaway of plastic film
capacitors.
Biography
Qi Li is currently an Associated Professor of Electrical
Engineering at Tsinghua University, China. He received his PhD
degree in Materials Science at Wuhan University of Technology,
China in 2013. From2013 to 2016, he was a Postdoctoral fellow
at the Department of Materials Science and Engineering of the
Pennsylvania State University. He started his appointment
at the Department of Electrical Engineering of Tsinghua
University in December 2016. His research interest has been
focused on polymer-based nanocomposite materials with
unique dielectric properties for electrical energy storage and
conversion. He has published over 50 SCI-indexed papers
in
Nature, PNAS and Nature Communications
, etc. He was
awarded the MRS Postdoctoral Award in 2016 because of his
scientific achievement in polymer nanocomposites for energy
storage and conversion. He is an Editorial Board Member of
IET Nanodielectrics
, and is the Guest Editor of Special Issue
Polymers for Film Capacitors published by Materials.
qili1020@tsinghua.edu.cnNanodielectrics for high-temperature
film capacitors
Qi Li
State Key Laboratory of Power System-Tsinghua University, China
Qi Li, Nano Res Appl Volume:4
DOI: 10.21767/2471-9838-C6-024