Study of Carbon Nanotubes for Lithium-Ion Batteries Application

Abstract:

The potential use of multi-walled carbon nanotubes (MWCNTs) produced by chemical vapour deposition (CVD) as a conductive agent for electrodes in Li-ion batteries has been investigated. LiNi0.33Co0.33Mn0.33O2 (NCM) has been chosen as active material for positive electrodes, and a nano-sized TiO2-rutile for the negative electrodes. The electrochemical performances of the electrodes were studied by galvanostatic techniques and especially the influence of the nanotubes on the rate capability and cycling stability has been evaluated. The addition of MWCNTs significantly enhanced the rate performances of both positive and negative electrodes and improved the capacity retention upon cycling. The obtained results demonstrated that the addition of MWCNTs in low amounts to the electrode composition enables an increase in both energy and power density of a Li-ion battery.

• Periodical: Advances in Science and Technology (Volume 72)
• Pages: 299-304
• DOI: https://doi.org/10.4028/www.scientific.net/AST.72.299
• Online since: October 2010
• Authors: Alberto Varzi, Corina Täubert, Margret Wohlfahrt-Mehrens, Martin Kreis, Walter Schütz
• Keywords: Carbon Nanotube (CN), Conductive Agent, Cycling Stability, High Power, Lithium-Ion Battery, Rate Capability

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