Electrochemical Double-Layer Capacitors (EDLC), widely-known as supercapacitors or ultracapacitors, are devices for fast and highly efficient storage of electric energy. Researchers at Drexel University are exploring ways to improve supercapacitor performance starting with selecting and optimizing advanced carbons as the electrode material (e.g., carbon onions, carbide-derived carbons, activated carbons) and matching electrolytes that can be used over a large voltage window (e.g., organic electrolytes, ionic liquids). Especially of importance for renewable energy sources is the high efficiency and stability of supercapacitors over hundreds of thousands of charge-discharge cycles. Drexel researchers work on a comprehensive combination of modeling and experimental studies to improve our basic understanding of the charge transfer and energy storage mechanisms and to adapt supercapacitors particularly for use in renewable energy systems. Together with national and international collaborators, Drexel's goal is to develop novel devices and technologies to meet the growing energy demands of our modern energy-dependent society.

	Michel Barsoum A. W. Grosvenor Professor Material Science & Engineering Dept. Office: LeBow 445		215-895-2338 barsoumw[at]drexel.edu
	Gary Friedman Professor Electical & Computer Engineering Dept. Office: Bossone 510		215-895-2108 gary[at]ece.drexel.edu
	Yury Gogotsi Associate Dean for Special Projects Director, Nanotechnology Institute Distinguished University and Trustee Chair Professor Material Science & Engineering Dept. Office: CAT 383		215-895-6446 gogotsi[at]drexel.edu
	Vibha Kalra Assistant Professor Chemical & Biological Engineering Dept. Office: CAT 479		215-895-2233 vibha.kalra[at]drexel.edu
	Robert Ramos Assistant Professor Director, Drexel S-STEM Scholarship Program Physics Dept. Office: Disque Hall 623		215-895-2729 rcr32[at]drexel.edu
	Kevin Shuford Assistant Professor Chemistry Dept. Office: Stratton Hall 416		215-895-2649 shuford[at]drexel.edu

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2. J. Chmiola, C. Largeot, P.-L. Taberna, P. Simon, Y. Gogotsi, Monolithic Carbide-Derived Carbon Films for Micro-Supercapacitors, Science, 238, 480-483 (2010)


3. P. Simon, Y. Gogotsi, Materials for Electrochemical Capacitors, Nature Materials, 7, 845-54 (2008)


4. J. Chmiola, C. Largeot, P.-L. Taberna, P. Simon, Y. Gogotsi, Desolvation of ions in subnanometer pores, its effect on capacitance and double-layer theory, Angewandte Chemie Int. Ed., 47 (18), 3392-3395 (2008)


5. J. Chmiola, G. Yushin, Y. Gogotsi, C. Portet, P. Simon, and P. L. Taberna, Anomalous Increase in Carbon Capacitance at Pore Sizes Less Than 1 Nanometer, Science, 313, 1760-1763 (2006)