Phase-Transformation Wave Dynamics in LiFePO4

Damian Burch; Gogi Singh; Gerbrand Ceder; Martin Z. Bazant

doi:10.4028/www.scientific.net/SSP.139.95

Paper Titles

Physics Mechanisms Involved in the Formation and Recrystallization of Amorphous Regions in Si through Ion Irradiation
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Hotspot Formation in Shock-Induced Void Collapse
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Molecular Dynamics Simulation of Nanocrystalline Tantalum under Uniaxial Tension
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Diffusion Mechanisms near Tilt Grain Boundaries in Ni₃Al Intermetallide
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Phase-Transformation Wave Dynamics in LiFePO₄
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Molecular-Dynamics Analysis of the Structural Properties of Silica during Cooling
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Atomistic Simulations of Copper Precipitation and Radiation Induced Segregation in α-Iron
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Ab-Initio Calculation for the Study of Nano Scale Silicon Based Device Structure
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Modelling of Elastic Modulus and Molecular Structure Interrelationship of an Oriented Crystalline Polymer
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HomeSolid State PhenomenaSolid State Phenomena Vol. 139Phase-Transformation Wave Dynamics in LiFePO4

Phase-Transformation Wave Dynamics in LiFePO₄

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.