固体高分子形燃料電池のカソード触媒への超音波処理による発電性能向上

概要

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The ionomer of the cathode catalyst layer of the PEFC fuel cell needs oxygen permeability, proton conductivity and drain ability of water produced by generation of electric power. We developed a novel method to form minute holes to raise oxygen permeability and drain ability for this ionomer. In the sample after irradiation 28kHz supersonic wave for 20 minutes to the cathode catalyst, the voltage drop became small remarkably. The presence of minute holes was confirmed in observation of the catalyst surface by stereo microscope and SEM.
The Institute of Electrical Engineers of Japanの論文