| 摘要 |
<P>PROBLEM TO BE SOLVED: To separate a catalyst from a fuel cell by a simpler process. <P>SOLUTION: This recovery method of the catalyst, which constitutes an electrode, from the fuel cell equipped with an electrolyte formed of a film comprising a high-molecular electrolyte includes a first process (steps S110 and S120) for performing the dry grinding a film-electrode-gas flow channel layer joined member, which is obtained by decomposing the fuel cell and composed of the electrolyte layer, an electrode equipped with the catalyst formed on both layers of the electrolyte layer and a gas flow channel layer comprising the conductive porous body arranged on the electrode and a second process (step S130) for performing the dry separation of the particles obtained by grinding the film-electrode-gas flow channel layer joined body into a catalyst-containing group containing the greater part of the catalyst and an electrolyte-containing particle group containing a high-molecular electrolyte in a higher ratio than the catalyst-containing particle group at least on the basis of either one of a particle size and particle density. <P>COPYRIGHT: (C)2008,JPO&INPIT |
