Cell temperature is 75 degree centigrade ( o C), anode temperature is 80 o C and Cathode temperature was evaluated 48-59-70-75 o C. For activation, in first step a constant voltage at 0.6 V for 30 minutes applied, and then constant voltage at 0.2 V for 10 minutes and constant voltage at 0.7 V for 1 minute. In next step, constant voltage at 0.6 V for 60 minutes and then, constant voltage at 0.5 V for 40 minutes. At the end of activation operation, a constant current at 250 mA.cm -2 has been applied for 60 minutes.