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An integrated 2-D model of a lithium ion battery: The effect of material parameters and morphology on storage particle stress
Authors
,
RM McMeeking
RT Purkayastha
Publication date
1 January 2012
Publisher
Abstract
An integrated 2-D model of a lithium ion battery is developed to study the mechanical stress in storage particles as a function of material properties. A previously developed coupled stress-diffusion model for storage particles is implemented in 2-D and integrated into a complete battery system. The effect of morphology on the stress and lithium concentration is studied for the case of extraction of lithium in terms of previously developed non-dimensional parameters. These non-dimensional parameters include the material properties of the storage particles in the system, among other variables. We examine particles functioning in isolation as well as in closely-packed systems. Our results show that the particle distance from the separator, in combination with the material properties of the particle, is critical in predicting the stress generated within the particle. © 2012 Springer-Verlag
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CUED - Cambridge University Engineering Department
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Last time updated on 15/07/2020