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Lee, Kyu Tae
Electrochemical Energy Systems Laboratory
Research Interests
  • Electrode materials for Li-ion batteries
  • Na-ion & Mg-ion batteries
  • Li-Air & Li-Sulur batteries
  • Design of advanced materials with new crystal structures
  • Fundamental electrochemistry & solid state chemistry

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Proof of Intercrystallite Ionic Transport in LiMPO4 Electrodes (M = Fe, Mn)

Cited 51 times inthomson ciCited 44 times inthomson ci
Title
Proof of Intercrystallite Ionic Transport in LiMPO4 Electrodes (M = Fe, Mn)
Author
Lee, Kyu TaeKan, Wang H.Nazar, Linda F.
Keywords
Electrochemical potential difference; Heterogeneous particles; Ionic transports; Single particle; Thermodynamic characteristics; Two phasis
Issue Date
2009-06
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.131, no.17, pp.6044 - 6045
Abstract
Homogeneous-sized LiMPO4 (M = Fe, Mn) nanorods and bulk particles were synthesized, and the thermodynamic characteristics of their mixtures as electrodes were analyzed to study the lithiation/delithiation mechanism for the general case of nanoparticles with a heterogeneous particle size distribution. We show that ionic transport occurs between nano and bulk particles in a cell at equilibrium, due to their electrochemical potential difference that originates from their different thermodynamic properties. This means that one phase in a single particle is preferred to two phases in a single particle during lithiation/delithiation of LiMPO4 from the viewpoint of thermodynamics if the electrode is composed of differing particle sizes.
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DOI
10.1021/ja8090559
ISSN
0002-7863
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ECHE_Journal Papers
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