Abstract

Olivine compounds have emerged as important and enabling positive electrode materials for high-power, safe, long-life lithium rechargeable batteries. In this work, the miscibility gap in undoped is shown to contract systematically with decreasing particle size in the nanoscale regime and with increasing temperature at a constant particle size. These effects suggest that the miscibility gap completely disappears below a critical size. In the size-dependent regime, the kinetic response of nanoscale olivines should deviate from the simple size-scaling implicit in Fickian diffusion.

Keywords

Materials scienceSpinodal decompositionMiscibilityNanoscopic scaleLithium (medication)Particle sizeScalingDiffusionFick's laws of diffusionNanotechnologyCondensed matter physicsThermodynamicsChemical engineeringPhase (matter)Composite materialPolymerChemistryOrganic chemistry

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Publication Info

Year
2007
Type
article
Volume
10
Issue
5
Pages
A134-A134
Citations
435
Access
Closed

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Cite This

Nonglak Meethong, Hsiao‐Ying Shadow Huang, W. Craig Carter et al. (2007). Size-Dependent Lithium Miscibility Gap in Nanoscale Li[sub 1−x]FePO[sub 4]. Electrochemical and Solid-State Letters , 10 (5) , A134-A134. https://doi.org/10.1149/1.2710960

Identifiers

DOI
10.1149/1.2710960