2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 10: Mineral & Secondary Battery

Editors:Kongoli F, Silva AC, Arol AI, Kumar V, Aifantis K
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:340 pages
ISBN:978-1-987820-33-1
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
CD-SIPS2015_Volume
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    The Role of Stress-Diffusion Interactions on the Fracture and Crack Growth in Lithium Ion Battery Electrodes Using the Extended Finite Element Method

    Sundararajan Natarajan1; Katerina Aifantis2;
    1INDIAN INSTITUTE OF TECHNOLOGY MADRAS, Chennai, India; 2UNIVERSITY OF ARIZONA, Tucson, United States;
    Type of Paper: Invited
    Id Paper: 305
    Topic: 14

    Abstract:

    In this paper, we study the effects of stress-diffusion interactions on the fracture behaviour and the crack growth of Lithium ion battery electrodes. A coupled mechanical equilibrium and Lithium diffusion accounting for the effect of stress on diffusion and the effect of advancement of the front to the crack growth is considered. The discontinuous fields are represented independent of the mesh within the framework of the XFEM and linear elastic fracture mechanics. The advancing front is represented by the level sets and the stress distribution and the fracture parameters are estimated to understand the stress development during lithiation. The fracturing is simulated based on the maximum principal stress criterion. The numerical results are compared with available experimental results. The proposed framework will provide insights into understanding the failure and degradation of the electrodes under potentiostatic and galvanostatic conditions. The influence of the particle size and shape on the fracture parameters and the stress distribution is also investigated.

    Keywords:

    Failure; Ion; Li-Ion; Lithium; Mechanics;

    Cite this article as:

    Natarajan S and Aifantis K. The Role of Stress-Diffusion Interactions on the Fracture and Crack Growth in Lithium Ion Battery Electrodes Using the Extended Finite Element Method. In: Kongoli F, Silva AC, Arol AI, Kumar V, Aifantis K, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 10: Mineral & Secondary Battery. Volume 10. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 283-284.