NANOTUBE ENERGY · Carbon nanotube structures as innovative electrode materials for more efficient energy storage devices

Carbon nanotube structures as innovative electrode materials for more efficient energy storage devices

The goal of this project was to develop carbon nanotube-based electrodes for batteries and supercapacitors to increase their energy/power. In our proposal, we intended to use different kinds of carbon nanotubes in order to considerably improve the performance of: 1. Li ion batteries for electric vehicle applications. 2. Super (electrical double layer, EDL) capacitors as very high power density devices. 3. Lead Acid battery technology, in order to make it suitable for load leveling applications (i.e. providing many thousands of discharge-charge cycles at 100% depth of discharge). In short, CNTs proved very valuable for supercapacitors and for lead acid batteries while they were found non-essential for Li-ion batteries. Over a dozen publications have been published since the start of the project on the above research areas and in the synthesis of nanostructures led by Dr. Nessim. The reintegration of Dr. Nessim was smooth and, as a full faculty member in the chemistry department at Bar Ilan University, he was able to build his lab and to publish multiple papers in high impact factor journals. This research helped him also to strengthen his collaboration with Professor Doron Aurbach with whom he co-published important papers. Additionally, Dr. Nessim has presented his research in many prestigious conference venues in Israel and USA. The team of the Nessim lab is now fully operational and the lab is equipped with state-of-the-art thermal and plasma-enhanced chemical vapor deposition (CVD) systems. Overall, we believe that this project was totally successful and achieved its goals. Below are the publications related to the project: 1. A. Borenstien, M. Noked, S. Okashy, D. Aurbach, Composite Carbon Nano-Tubes (CNT)/Activated Carbon Electrodes for Non-Aqueous Super Capacitors Using Organic Electrolyte Solutions. J Electrochem Soc 160, A1282-A1285 (2013)Doi 10.1149/2.103308jes). 2. M. Noked, S. Okashy, T. Zimrin, D. Aurbach, Thick vertically aligned carbon nanotube/carbon composite electrodes for electrical double-layer capacitors. Carbon 58, 134-138 (2013); published online EpubJul (Doi 10.1016/J.Carbon.2013.02.042). 3. M. Noked, S. Okashy, T. Zimrin, D. Aurbach, Composite Carbon Nanotube/Carbon Electrodes for Electrical Double-Layer Super Capacitors. Angew Chem Int Edit 51, 1568-1571 (2012)Doi 10.1002/Anie.201104334). 4. S. Okashy, M. Noked, T. Zimrin, D. Aurbach, The Study of Activated Carbon/CNT/MoO3 Electrodes for Aqueous Pseudo-Capacitors. J Electrochem Soc 160, A1489-A1496 (2013)Doi 10.1149/2.084309jes). 5. E. Shawat, I. Perelshtein, A. Westover, C.L. Pint, and G.D. Nessim* Ultra high-yield synthesis of self-assembled, conductive, and superhydrophobic three-dimensional mats of carbon nanofibers via full catalysis of unconstrained thin film, Advanced Functional Materials (submitted) 6. E. Teblum, M. Noked, A. Kerman, M. Muallem, Y.R. Tischler, D. Aurbach, and G.D. Nessim* Millimeter-Tall Carpets of Vertically Aligned Crystalline Carbon Nanotubes Synthesized on Copper Substrates for Electrical Applications Journal of Physical Chemistry C, (under review) 7. E. Shawat, Mor V., Y. Fleger, L. Oakes, C.L. Pint, and G.D. Nessim* What is below the support layer affects carbon nanotube growth: an iron catalyst reservoir yields taller nanotube carpets Nanoscale, P. 1545-1551, Vol. 6, Jan. 2014 8. O. Mero, E. Shawat, G.D. Nessim, J. Grinblat, and S. Margel* Air-stable nanogranular Fe thin films formed by Chemical Vapor Deposition of triiron dodecacarbonyl as catalysts for carbon nanotube growth Thin Solid Films, P. 76–84, Vol. 550, Jan. 2014 9. A. Röthlisberger, M. Seita, A. Reiser, E. Shawat, R. Spolenak, and G.D. Nessim* Investigating the Mechanism of Bidirectional Growth of Carbon Nanofiber Carpets on Metallic Substrates Carbon, P. 498–507, Vol. 63, Nov. 2013 10. R. Shapira, G.D. Nessim, T. Zimrin, and D. Aurbach* Towards promising electrochemical technology for load leveling applications: extending cycle life of lead acid batteries by the use of carbon nano-tubes (CNTs) Energy & Environmental Science, P. 587-594, Vol. 6/2, Feb. 2013 11. E. Teblum, Y. Gofer, C.L. Pint, and G.D. Nessim* The role of catalyst oxidation state in the synthesis of tall carpets of vertically aligned carbon nanotubes Journal of Physical Chemistry C, P. 24522-24528, Vol. 116/46, Nov. 2012 12. G.D. Nessim*, A. Al-Obeidi, H. Grisaru, E.S. Polsen, C.R. Oliver, T. Zimrin, A.J. Hart, D. Aurbach, and C.V. Thompson Synthesis of tall carpets of vertically aligned carbon nanotubes by in situ generation of water vapor through preheating of added oxygen Carbon, P. 4002–4009, Vol. 50, April 2012 13. G. Gershinsky, H. Ortal, G. Salitra, J. Grinblat, E. Levi, G.D. Nessim, E. Zinigrad, and D. Aurbach* Ultra fast elemental synthesis of high yield copper Chevrel phase with high electrochemical performance Journal of Solid State Chemistry, P. 50-58, Vol. 188, April 2012 14. G.D. Nessim*, M. Seita, D.L. Plata, K.P. O’Brien, A.J. Hart, C.M. Reddy, P.M. Gschwend, and C.V. Thompson Precursor gas chemistry determines the crystallinity of carbon nanotubes synthesized at low temperature Carbon, P. 804-810, Vol. 49/3, March 2011 15. N.D.R. Leifer, M. Noked, G.D. Nessim, and D. Aurbach* Straightforward Method for the Characterization of Carbon Nanotube Suspensions Carbon, P. 1042-1047, Vol. 49/3, March 2011

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