Abstract
In this brief review, the general effects of the intercalation of alkali metals (Na, Li) into V2O5 thin films, observed by photoemission spectroscopy (XPS and UPS), are summarized and discussed in order to better understand the involved intercalation mechanisms and surface reactions in the view points of crystal structure and electronic structure. The correlation of the change in work function and the shift in Fermi level of the host due to the intercalation of alkali metals is outlined. Finally, the contribution of different mechanisms to the batteries' voltages, as deduced from photoemission spectroscopic data, is given. Copyright © 2006 John Wiley & Sons, Ltd.
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