Electrochemical noise as diagnostic tool for Proton Exchange Membrane (PEMFC).

Abstract

International audienceIn recent years, there is an active tendency of research, development and adoption of new energy source.One of the most perspective systems in this area are Proton Exchange Membrane Fuel Cell (PEMFC).However, they have insufficient operational characteristics on reliability and longevity, that impedes their wide and rapid distribution. To deal with these problems, methods of control and diagnosis have been employed. This problem can be solved by using PEMFC control and its diagnostics allowing to predict and to detect failures during early stages for their neutralization to keep high operational characteristics.Preliminary results seems to indicate that noise measurement can be an effective tool for the diagnosis of fuel cells. It has been shown that capabilities of electric fluctuation allow to extend information about physical-chemical processes obtained from polarization curve and impedance spectroscopy