PAGE TITLE
Overview
PAGE SUMMARY
Carbon nano-onions (CNO) have many attractive properties for energy storage, such as high conductivity, high surface area, and exceptionally fast charge-discharge rates. At Drexel University, CNO is synthesized by annealing of a nanodiamond precursor, which can be easily scaled up to kilogram quantities for industrial applications. CNO has gained significant attention in the last five years for energy storage applications, specifically for electrochemical capacitors (ECs). While ECs are ideal for high power applications, CNO ECs show more than 10x the power density of activated carbon, which is the industry standard. The exceptional performance stems from their non-porous structure, allowing ions to adsorb and desorb 1000x faster than activated carbon. We have also shown an increased performance for CNO compared to carbon black as a conductive additive to activated carbon electrodes. Similar performance could be seen for battery electrodes as well.
APPLICATIONS
TITLE: Applications
Electrochemical capacitors
Lithium ion batteries
Conductive additive
Tribology
ADVANTAGES
TITLE:Advantages
Up to 1000x faster discharge rate compared to conventional ECs
10x higher energy density and comparable power density compared to electrolytic capacitors
Small particle size allows for better dispersion compared to carbon black
FIGURES: Insert Figure Image Inside Figure Tags within Editor
Figure 1
Figure 1 Caption:
Ragone Plot illustrating the exceptional performance of CNO compared to other traditional energy storage devices.
Figure 2
Figure 2 Caption
Schematic of CNO showing layering similar to onions.
IP STATUS
Intellectual Property and Development Status
United States Patent Pending- 13/823,336
http://patft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9576694.PN.&OS=PN/9576694&RS=PN/9576694
PUBLICATIONS
References
Pubinfo should be the citation for your publication. Publink is the full url linking to the publication online or a pdf.
McDonough JK, Gogotsi Y. Carbon onions: Synthesis and electrochemical applications. The Electrochemical Society: Interface. 2013;22(3):61-6.
http://interface.ecsdl.org/content/22/3/61.abstract
McDonough JK, Frolov AI, Presser V, Niu J, Miller CH, Ubieto T, Federov MV, Gogotsi, Y. Influence of the structure of carbon onions on their electrochemical performance in supercapacitor electrodes. Carbon. 2012;50(9):3298-309.
Pech D, Brunet M, Durou H, Huang P, Mochalin V, Gogotsi Y, Taberna PL, Simon P. Ultrahigh power electrochemical micro-capacitors based on onion-like carbon, Nature Nanotechnology.2010;5(9):651–4.
http://www.nature.com/nnano/journal/v5/n9/abs/nnano.2010.162.html?lang=en&foxtrotcallback=true
Commercialization Opportunities
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Contact Information
Web Site
Drexel Nanomaterials Group
http://nano.materials.drexel.edu
For Technical Information:
Yury Gogotsi, Ph.D., D.Sc.
Distinguished University Professor and Trustee Chair
Director, A.J. Drexel Nanomaterials Institute
Department of Materials Science and Engineering
3141 Chestnut St.
Philadelphia, PA 19104
Phone: 1-215-895-6446
E-mail: gogotsi@drexel.edu
For Intellectual Property and Licensing Information:
Elizabeth Poppert, Ph.D.
Licensing Manager
Office of Technology Commercialization
The Left Bank
3180 Chestnut Street, Suite 104
Phone: 215-895-0999
Email: lizpoppert@drexel.edu