Process of preparing electrode for fuel cell

Details Process of preparing electrode for fuel cell Process of preparing electrode for fuel cell

1991-10-25

1993-02-16

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Forming electrical articles by shaping electroconductive...

264105, 264112, 264122, 429 42, B29C 4300

Patent

active

051868776

ABSTRACT:
Disclosed are processes of preparing an electrode for a fuel cell which comprises impregnating catalyst particles with a solution of ion exchange resin to form, after drying, a thin layer of the ion exchange resin on the surface thereof, impregnating non-catalyst particles separately prepared with a solution of ion exchange resin to form, after drying, a thicker layer of the ion exchange resin on the surface thereof than that on the catalyst particle surface, mixing the two kinds of particles coated with the ion exchange resin film with a hydrophobic binder, forming a sheet-like catalyst layer by means of hot pressing or cold pressing and thermally bonding this sheet-like catalyst layer and an ion exchange membrane under pressure. The last thermal bonding step may be simultaneously carried out with the previous catalyst layer forming step.

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