Spray pyrolytic deposition of ruthenium incorporated cobalt oxide thin film electrodes was carried out via methanolic route at 623 +/- 2K. Structural, morphological, optical, compositional and electrochemical study was made using XRD, SAED, SEM, TEM, UV-vis, EDX, XPS and electrochemical work station. Deposited samples shows face centered cubic crystal structure for Co3O4 and tetragonal for RuO2 having crystalline nature was confirmed form SAED. Mixed oxide samples having porous nano-grain morphology and mixed microstructure as observed form SEM and TEM. Cyclic voltammogram study reveals double-pseudo-capacitive nature with optimum specific capacitance (SC) 628.33 F/g at the scan rate 1 mV/s in 1 M KOH with good stability. Charge-discharge behavior was studied to calculate electric parameters such as specific energy (SE), specific power (SP) and columbic efficiency (eta). The calculated maximum values are SE 19.94 Wh/kg, SP 5.33 kW/kg and eta 99.43%. Electrochemical impedance study was made in the frequency range 1 mHz to 1 MHz to see the internal resistance and capacitive behavior of the optimized sample. The randles equivalent circuit and its parameters are reported in the text. (C) 2015 Published by Elsevier B.V.