Phase Separation Dynamics in Isotropic Ion-Intercalation Particles

  title={Phase Separation Dynamics in Isotropic Ion-Intercalation Particles},
  author={Yi Zeng and Martin Z. Bazant},
  journal={SIAM J. Appl. Math.},
  • Yi Zeng, M. Bazant
  • Published 18 September 2013
  • Physics, Materials Science
  • SIAM J. Appl. Math.
Lithium-ion batteries exhibit complex nonlinear dynamics, resulting from diffusion and phase transformations coupled to ion intercalation reactions. Using the recently developed Cahn-Hilliard reaction (CHR) theory, we investigate a simple mathematical model of ion intercalation in a spherical solid nanoparticle, which predicts transitions from solid-solution radial diffusion to two-phase shrinking-core dynamics. This general approach extends previous Li-ion battery models, which either neglect… 
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