Origami
One of the question after the Dr. Uday’s talk was “What do you suggest for the design of supercapacitor”. I am not sure in which perspective the question was asked (Dr. Uday ended up with answering in a general way) but nonetheless it reminded me a paper from MIT
Uday’s Presentation
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Presentation
Ultracapacitors: Some Perspectives on Technology, Modeling and Applications -
Presentation by Dr. Uday Deshpande, Maxwell Technologies
Venue
505, A-Wing,
MCCIA Trade Tower,
ICC Complex,
403, Senapati Bapat Road,
Pune-411 016 INDIA.
Time
5.30 – 6.00 PM – Registration
6.00 – 6.30 PM – High Tea
6.30 – 7.00 PM- Presentation
Dr. Uday Deshpande
Dr. John Miller
Maxwell Technologies
San Diego, CA
Abstract:
Ultracapacitors are finding widespread use in a variety of applications
today. As these applications proliferate, it is important to ensure that the
ultracapacitors continue to meet the demands of these applications.
This presentation covers topics discussing the basics of ultracapacitor
technology and offers some insights into future development.
We will focus on the system level attributes of the carboncarbon
ultracapacitor, a symmetric version of the general class of electrochemical
capacitors. We will look at the electronic equivalent circuit model
development of the ultracapacitor, laboratory validation of the model and
its application in typical commercial, industrial and automotive systems.
One of the more significant aspects of ultracapacitor use is that
implementers understand the bounds of continuous operation and when
they enter into abuse tolerance conditions. We will look at some typical
application and discuss the implications of the application to the
ultracapacitor cells/modules specifically in the automotive and
transportation industries.
The discussion then moves on to the exciting new area of ultracapacitor
plus lithium ion in combination, in particular how the modern power
electronic converter enables a more cost effective active parallel
combination and how this can benefit hybrid vehicles. This combination of
ultracapacitor with advanced battery results in decoupling of energy and
power in an energy storage system that is capable of operation to 40° C
without power derating, is tolerant of high rate charging, and has improved
thermal performance. In addition, the combination facilitates more
aggressive energy management strategy without incurring undue stress on
the optimized energy battery component of energy storage.
About Dr. Uday Deshpande
Uday Deshpande is currently Senior Director – Research & Development at
Maxwell Technologies in San Diego, CA. In this capacity he is responsible for
the electrical and systems development for their ultracapacitor products as well as developing increased understanding in the application and use of
ultracapacitors in various industries.
He has a Bachelor of Technology (Hons.) degree from the Indian Institute of
Technology, Kharagpur and an MSEE and Ph.D. degrees from the University of Kentucky, all in Electrical Engineering. His fields of interest are electric machines and drives, power electronics and energy storage systems.
Paper Energy Storage Device
Prof. Ajayan’s “Paper Capacitor” covered by Aaj Tak News Channel
Prof. Ajayan and co-workers at RPI (now at Rice University) have fabricated a paper-thin and flexible energy storage device by integrating cellulose (most abundant natural polymer-a constituent of paper) with carbon nanotubes. The device offers good mechanical flexibility and is compact and environmetally friendly. The details of this research are published in the Proceedings of Naional Academy of Sciences, USA.
Welcome To Supercapacitor Blog
Welcome To Supercapacitor Blog- a blog about the energy storage device technology that includes fuel cells, solar cells, bettries and especially supercapacitors.
