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A coupled electrochemomechanical model for the cycling of a Cu15Si4-hosted silicon nanowire

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Show simple item record Devine, Kevin M. O'Kiely, D. Vynnycky, Michael Silveri, F. Tommasi, A. Abinaya, S. Geaney, H. Ryan, K.M 2022-03-23T10:11:23Z 2022-03-23T10:11:23Z 2022
dc.description peer-reviewed en_US
dc.description.abstract In this paper, we present and analyse a coupled electrochemomechanical model for the cycling of a nanowire composed of amorphous Si coated on Cu15Si4, using large-deformation theory. This study is motivated by a recent novel design for the anode current collector in a lithium-ion battery, and the modelling efforts are linked to half-cell experiments at three different charging rates (C/10,C/2,2C). The model predicts that nanowire buckling should occur on the first charging cycle, and this agrees with the appearance of fracturing on the corresponding transmission electron microscopy image. In addition, the model predicts some new behaviours that were not discussed in earlier electrochemomechanical models of similar type; among these is the possibility that the electrode may locally reach full charge first in its interior, rather than at its outer surface. en_US
dc.language.iso eng en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Journal of Power Sources;529, 231197
dc.subject Non-linear elasticity en_US
dc.subject Anodes en_US
dc.title A coupled electrochemomechanical model for the cycling of a Cu15Si4-hosted silicon nanowire en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1016/j.jpowsour.2022.231197
dc.contributor.sponsor Horizon 2020 en_US
dc.contributor.sponsor ERC
dc.relation.projectid 814464 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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