| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a fuel cell catalyst layer that improves power generation performance. <P>SOLUTION: The method is used for manufacturing a catalyst layer whose mass ratio is ≥0.3 between a proton conductor and a PtCo/C catalyst metal supported carrier, including: a step (S100) of manufacturing a mixed liquid by mixing the PtCo/C catalyst metal supported carrier with the proton conductor so that the mass ratio between the proton conductor and the PtCo/C catalyst metal supported carrier is 0.2-0.3; a step (S102) of manufacturing a dispersion liquid so that a cobalt leaching rate that is effluent in the dispersion liquid after component in the mixed liquid is dispersed is ≤4 mass% in relation to the content of the entire cobalt of the PtCo/C catalyst metal supported carrier included in the dispersion liquid; a step (S104) of producing a catalyst ink by adding the proton conductor to the dispersion liquid; and a step (S106) of forming the catalyst layer by using the catalyst ink. <P>COPYRIGHT: (C)2011,JPO&INPIT |
