Phase-Transformation Wave Dynamics in LiFePO4 |
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| Journal | Solid State Phenomena (Volume 139) |
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| Volume | Theory, Modeling and Numerical Simulation |
| Edited by | Veena Tikare, Graeme E. Murch, Frédéric Soisson and Jeung Ku Kang |
| Pages | 95-100 |
| DOI | 10.4028/www.scientific.net/SSP.139.95 |
| Citation | Damian Burch et al., 2008, Solid State Phenomena, 139, 95 |
| Online since | April, 2008 |
| Authors | Damian Burch, Gogi Singh, Gerbrand Ceder, Martin Z. Bazant |
| Keywords | Continuum Modeling, Defect, LiFePO4/C, Phase Transformation, Wave Dynamics |
| Abstract | A general continuum model has recently been proposed for the dynamics of ion intercalation in a single crystal of rechargeable-battery electrode materials [1]. When applied to strongly phase-separating, highly anisotropic materials such as LiFePO4, phase-transformation waves are predicted between the lithiated and unlithiated portions of a crystal. In this paper, we extend the analysis of the wave dynamics, and we describe a new mechanism for current capacity fade through the interactions of these waves with defects in the material. |
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