| abstract |
PROBLEM TO BE SOLVED: To facilitate the recovery of a catalyst metal from a spent polymer electrolyte fuel cell, and at the same time, to recover a fluorinated polymer having a sulfonic acid, thereby improving the efficiency of the main materials of the polymer electrolyte fuel cell. Provide a method to enable efficient recycling. SOLUTION: In a solvent for dissolving the fluoropolymer, a process of dissolving the ion exchange membrane / electrode assembly for a fuel cell is performed to separate the fluoropolymer solution and an insoluble portion containing a catalyst metal. This is a method for collecting fuel cell materials. Further, the method is a method in which the recovered fluoropolymer is reused as an ion exchange membrane and / or an electrode catalyst coating agent. |