The Effect of Phase Separation on Diffusion Induced Stresses in Spherical and Cylindrical Electrode Particles

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Esmizade S.; Haftbaradaran H.; MOSSAIBY F.

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Paper Information

Journal: JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL) Year:2018 | Volume:37 | Issue:1 Page(s): 29-50

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Title

The Effect of Phase Separation on Diffusion Induced Stresses in Spherical and Cylindrical Electrode Particles

Author(s)

Esmizade S. | Haftbaradaran H. | MOSSAIBY F. | Issue Writer Certificate

Keywords

Lithium-ion batteriesQ1

Phase separationQ1

Phase-field modelQ1

Diffusion-induced stressQ1

Abstract

Experiments have frequently shown that Phase separation in lithium-battery electrodes could lead to mechanical failure, poor cycling performance, and reduced capacity. Here, a Phase-field model is utilized to investigate how Phase separation affects the evolution of the concentration and stress profiles within the spherical/cylindrical electrode particles, during both insertion and extraction half-cycles. To this end, the governing equations are derived and then discretized using the central finite difference method. The resulting algebraic equations are solved numerically with the aid of the Newton-Raphson method to determine both the concentration and stress fields in the electrode particles. For further verification, the results are compared against predictions of an analytical core-shell model. The results suggest that, within the range of parameters considered here, Phase separation could lead to a more than five-fold increase in the maximum tensile stress at the particles surface.

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APA: Copy

Esmizade, S., Haftbaradaran, H., & MOSSAIBY, F.. (2018). The Effect of Phase Separation on Diffusion Induced Stresses in Spherical and Cylindrical Electrode Particles. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), 37(1 ), 29-50. SID. https://sid.ir/paper/173651/en

Vancouver: Copy

Esmizade S., Haftbaradaran H., MOSSAIBY F.. The Effect of Phase Separation on Diffusion Induced Stresses in Spherical and Cylindrical Electrode Particles. JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL)[Internet]. 2018;37(1 ):29-50. Available from: https://sid.ir/paper/173651/en

IEEE: Copy

S. Esmizade, H. Haftbaradaran, and F. MOSSAIBY, “The Effect of Phase Separation on Diffusion Induced Stresses in Spherical and Cylindrical Electrode Particles,” JOURNAL OF COMPUTATIONAL METHODS IN ENGINEERING (ESTEGHLAL), vol. 37, no. 1 , pp. 29–50, 2018, [Online]. Available: https://sid.ir/paper/173651/en

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