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dc.contributor.authorWu, H.
dc.contributor.authorXie, Z.
dc.contributor.authorWang, Y.
dc.contributor.authorLu, Chunsheng
dc.contributor.authorMa, Z.
dc.identifier.citationWu, H. and Xie, Z. and Wang, Y. and Lu, C. and Ma, Z. 2018. Modeling diffusion–induced stress on two-phase lithiation in lithium-ion batteries. European Journal of Mechanics, A/Solids. 71: pp. 320-325.

Masson SAS Capacity fade induced by chemo-mechanical degradation during charge-discharge cycles is the bottleneck in the design of high-performance batteries, especially high-capacity electrode materials. In this paper, a flexible sigmoid function is used to create the two-phase electrochemical lithiation profile, describing a sharp phase boundary that separates the pristine core from the lithi ated shell of an electrode particle. According to such a phase transition, an analytical solution of the stress evolution is obtained by introducing an electrochemical reaction layer into the plastic model. Finally, based on the theory of diffusion-induced stress and the energy principle, we determine the critical thickness of radius of a lithiated layer, at which fracture occurs.

dc.titleModeling diffusion–induced stress on two-phase lithiation in lithium-ion batteries
dc.typeJournal Article
dcterms.source.titleEuropean Journal of Mechanics, A/Solids
curtin.departmentSchool of Civil and Mechanical Engineering (CME)
curtin.accessStatusFulltext not available

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