Method for improving activation efficiency of fuel cell
A fuel cell and battery technology, applied in fuel cells, electrochemical generators, circuits, etc., can solve the problems of long activation time and unmonitorable activation degree, and achieve controllable activation process, enhanced gas mass transfer capacity, The effect of low fuel consumption
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[0030] The present invention will be further described below in conjunction with drawings and embodiments.
[0031] The specific operation process of activation is as follows:
[0032] (1) The battery is operating normally, the anode is fed with hydrogen, the cathode is fed with air, the temperature of the battery is raised to the required temperature, and the voltage scanning method is used to test the polarization curve of the battery, and the polarization curve I is obtained; it is used to monitor the activation state of the battery, Linear scanning range OCV~0.4V, scanning speed 5mV / s, repeated twice;
[0033] (2) Switch the cathode gas from air to nitrogen, and control the current at 0.25A and 0.10A, respectively, for 5 minutes;
[0034] (3) The battery is operating normally, the anode is fed with hydrogen, the cathode is fed with air, and the voltage scanning method is used to test the polarization curve of the battery, and the polarization curve II is obtained;
[003...
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