Lithium cobalt vanadate LixCoVO4 (x=0.8; 1-0; 1.2) has been prepared by a solid state reaction method. The XRD analysis confirms the formation of the sample. A new peak has been observed for Li1.0CoVO4 and for Li1.2CoVO4 indicating the formation of a new phase. The XPS analysis indicates the reduction in the oxidation of vanadium and oxygen with the addition of Li in LixCoVO4 (x=0-8, 1.0, 1.2). The impedance analysis gives the conductivity value as 2.46 x 10(-5), 6.16 x 10(-5), 9 x 10(-5) ohm(-1) cm(-1) for LixCoVO4 (x=0.8; 1.0; 1.2), all at 623 K. The similarity in the bulk activation energy (E-a) and the activation enthalpy for migration of ions (E-w) indicate that the conduction in Li1.2CoVO4 has been due to hopping mechanism. (c) 2005 Elsevier B.V. All rights reserved.