Modelling of primary alkaline battery cathodes: A simplified model

Johansen, Jonathan, Farrell, Troy W., & Please, Colin P. (2006) Modelling of primary alkaline battery cathodes: A simplified model. Journal of Power Sources, 156(2), pp. 645-654.

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A simplified model, to that produced previously by the authors, for the galvanostatic discharge of primary alkaline battery cathodes is presented. Laplace transform and perturbation methods are employed to obtain the leading order spatial and temporal behaviour of the porous cathode over two distinct size scales. It is shown that for a wide range of industrially relevant discharge conditions the time taken for KOH electrolyte to diffuse into a porous electrolytic manganese dioxide particle is fast compared with the cathodic discharge time and that ohmic losses within the graphite phase of the cathode can be considered to be negligible. Numerical solution of the simplified model equations is discussed and the results are validated against relevant experimental data.

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5 citations in Web of Science®

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ID Code: 10441
Item Type: Journal Article
Refereed: Yes
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author.
Keywords: Primary alkaline battery, Cathode, Electrolytic manganese dioxide, Mathematical model, Perturbation methods
DOI: 10.1016/j.jpowsour.2005.03.235
ISSN: 0378-7753
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2006 Elsevier
Deposited On: 26 Oct 2007 00:00
Last Modified: 21 Mar 2016 04:35

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