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Primary alkaline battery cathodes: a three scale model

Primary alkaline battery cathodes: a three scale model
Primary alkaline battery cathodes: a three scale model
A mathematical model for the galvanostatic discharge and recovery of porous, electrolytic manganese dioxide cathodes, similar to those found within primary alkaline batteries is presented. The phenomena associated with discharge are modeled over three distinct size scales, a cathodic (or macroscopic) scale, a porous manganese oxide particle (or microscopic) scale, and a manganese oxide crystal (or submicroscopic) scale. The physical and chemical coupling between these size scales is included in the model. In addition, the model explicitly accounts for the graphite phase within the cathode. The effects that manganese oxide particle size and proton diffusion have on cathodic discharge and the effects of intraparticle voids and microporous electrode structure are predicted using the model.
0013-4651
4034-4044
Farrell, T.W.
f5c83285-a302-4dc3-b965-026cc9e69d3d
Please, C.P.
118dffe7-4b38-4787-a972-9feec535839e
McElwain, D.L.S.
2b1b25a5-d12f-41bd-bf1a-0f8b9afd65b6
Swinkels, D.A.J.
c5cfc262-67db-4469-a9bf-f5503f6b3612
Farrell, T.W.
f5c83285-a302-4dc3-b965-026cc9e69d3d
Please, C.P.
118dffe7-4b38-4787-a972-9feec535839e
McElwain, D.L.S.
2b1b25a5-d12f-41bd-bf1a-0f8b9afd65b6
Swinkels, D.A.J.
c5cfc262-67db-4469-a9bf-f5503f6b3612

Farrell, T.W., Please, C.P., McElwain, D.L.S. and Swinkels, D.A.J. (2000) Primary alkaline battery cathodes: a three scale model. Journal of the Electrochemical Society, 147 (11), 4034-4044. (doi:10.1149/1.1394015).

Record type: Article

Abstract

A mathematical model for the galvanostatic discharge and recovery of porous, electrolytic manganese dioxide cathodes, similar to those found within primary alkaline batteries is presented. The phenomena associated with discharge are modeled over three distinct size scales, a cathodic (or macroscopic) scale, a porous manganese oxide particle (or microscopic) scale, and a manganese oxide crystal (or submicroscopic) scale. The physical and chemical coupling between these size scales is included in the model. In addition, the model explicitly accounts for the graphite phase within the cathode. The effects that manganese oxide particle size and proton diffusion have on cathodic discharge and the effects of intraparticle voids and microporous electrode structure are predicted using the model.

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Published date: 2000

Identifiers

Local EPrints ID: 29249
URI: https://eprints.soton.ac.uk/id/eprint/29249
ISSN: 0013-4651
PURE UUID: 32b220f8-55f8-4598-b3da-9fe0691402dd

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Date deposited: 19 Jul 2006
Last modified: 17 Jul 2017 15:58

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