Methods of manufacturing electrodes for polymer electrolyte...

Details Methods of manufacturing electrodes for polymer electrolyte... Methods of manufacturing electrodes for polymer electrolyte...

2005-08-18

2009-06-09

Kalafut, Stephen J. (Department: 1795)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Making catalytic electrode, process only

C429S047000, C429S047000

Reexamination Certificate

active

07544630

ABSTRACT:
Methods are provided for easily obtaining a high performance electrode without using an organic solvent for making an ink of an electrode catalyst or a surfactant for making an ink of a water repellent carbon material. The methods of manufacturing an electrode for a polymer electrolyte fuel cell comprise (a) a step of adhering a polymer electrolyte or a water repellent material to fine electrically conductive particles, and granulating the electrically conductive particles to obtain multinary granules, and (b) a step of depositing the multinary granules in layer form to obtain a catalyst layer or a water repellent layer of an electrode. Apparatus for manufacturing the electrodes, as well as polymer electrolyte fuel cells using the electrodes are also provided.

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