Phase-Transformation Wave Dynamics in LiFePO4

Abstract:

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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.

Info:

Periodical:

Solid State Phenomena (Volume 139)

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:

D. Burch et al., "Phase-Transformation Wave Dynamics in LiFePO4 ", Solid State Phenomena, Vol. 139, pp. 95-100, 2008

Online since:

April 2008

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Price:

$35.00

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