Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2005-02-15
2005-02-15
Yuan, Dah-Wei (Department: 1745)
Metal working
Method of mechanical manufacture
Electrical device making
C429S006000, C429S047000, C429S047000
Reexamination Certificate
active
06855178
ABSTRACT:
A method for producing a membrane electrode assembly1for solid polymer electrolyte fuel cell, the membrane electrode assembly1including a solid polymer electrolyte membrane2comprising an ion exchange membrane, a first electrode3having a first catalyst layer31, and a second electrode4having a second catalyst layer41, the first electrode3and the second electrode4being disposed so as to be opposed to each other via the ion exchange membrane, the method including: applying a coating solution containing a catalyst onto a base film101to form a first catalyst layer31; applying a coating solution containing an ion exchange resin dissolved or dispersed in a liquid onto the first catalyst layer31to form an ion exchange membrane; then applying a coating solution containing a catalyst onto the ion exchange membrane to form a second catalyst layer41; and finally, peeling off the base film101from a resulting laminate. According to this method, it is possible to produce membrane electrode assembly1for high-performance solid polymer electrolyte fuel cell having catalyst layers each having a uniform thickness efficiently and continuously.
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Gyoten Hisaaki
Hatoh Kazuhito
Hosaka Masato
Kanbara Teruhisa
Kinoshita Shinji
Matsushita Electric - Industrial Co., Ltd.
McDermott Will & Emery LLP
Yuan Dah-Wei
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