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The electrochemical performance of phenol-formaldehyde based activated carbon electrodes for lithium/oxygen batteries

Shitta-Bey, G. O. and Mirzaeian, M. and Halla, P. J. (2012) The electrochemical performance of phenol-formaldehyde based activated carbon electrodes for lithium/oxygen batteries. Journal of the Electrochemical Society, 159 (3). A315-A320. ISSN 0013-4651

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Abstract

Here we demonstrate the use of polymer derived activated carbons as the potential electrode material for Li/O2 batteries. The activated carbons were synthesized by sol-gel polycondensation of low cost phenol and formaldehyde followed by carbonization at 1050°C in an inert atmosphere and activation under CO2 to different degrees of burn off. Galvanostatic charge/discharge measurements performed on the activated carbon based electrodes show that discharge capacity increases with mesopore volume, with the highest discharge capacity of 1852 mAh/g obtained for the carbon having the highest mesopore volume of 1.8717 cm3/g. Galvanostatic rate capability tests show that discharge capacity of the cell decreases with increasing discharge rates significantly.

Item type: Article
ID code: 40198
Keywords: aerogels, density, porosity, supercapacitors, gels, liquid, catalyst, energy storage, LI-air batteries, Chemical engineering, Materials Chemistry, Surfaces, Coatings and Films, Electrochemistry, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Renewable Energy, Sustainability and the Environment
Subjects: Technology > Chemical engineering
Department: Faculty of Engineering > Chemical and Process Engineering
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 22 Jun 2012 16:06
Last modified: 27 Mar 2014 10:12
URI: http://strathprints.strath.ac.uk/id/eprint/40198

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