Advanced Materials

The Role of Surface and Interface Energy on Phase Stability of Nanosized Insertion Compounds

Authors

  • Marnix Wagemaker,

    Corresponding author
    1. Department of Radiation, Radionuclides and Reactors Faculty of Applied Sciences Mekelweg 15, 2629 JB Delft (The Netherlands)
    • Department of Radiation, Radionuclides and Reactors Faculty of Applied Sciences Mekelweg 15, 2629 JB Delft (The Netherlands).
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  • Fokko M. Mulder,

    1. Department of Radiation, Radionuclides and Reactors Faculty of Applied Sciences Mekelweg 15, 2629 JB Delft (The Netherlands)
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  • Anton Van der Ven

    Corresponding author
    1. Department of Materials Science and Engineering University of Michigan Ann Arbor, MI 48109 (USA)
    • Department of Materials Science and Engineering University of Michigan Ann Arbor, MI 48109 (USA).
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Abstract

Thermodynamic theory reveals the impact of surface and interface energies on the equilibrium properties and solubility limits of interstitial ions in nanosized crystallites. Applied to LixFePO4 especially interface energy contributions play important roles, and their effect explains observations of the narrowing of electrochemically measured miscibility gaps in nanostructured electrodes.

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