A.  Moretti, Giuli, G., Nobili, F., Trapananti, A., Aquilanti, G., Tossici, R., and Marassi, R., ?Structural and Electrochemical Characterization of Vanadium-Doped LiFePO4 Cathodes for Lithium-Ion Batteries?, Journal of the Electrochemical Society, vol. 160, pp. A940?A949, 2013.