发明名称 |
METHOD OF MANUFACTURING MEMBRANE ELECTRODE ASSEMBLY |
摘要 |
Provided is a method of manufacturing a membrane electrode assembly in which an electrode catalyst layer is formed on a surface of an electrolyte membrane. This method includes: a drying of drying a substrate sheet to which a catalyst ink is applied, the catalyst ink containing catalyst support particles on which a catalytic metal is supported, a solvent, and an ionomer; and a heat treatment of performing a heat treatment on the substrate sheet, on which the catalyst ink is dried, after the drying at a heat treatment temperature which is equal to or higher than a glass transition temperature of the ionomer to prepare the electrode catalyst layer. The heat treatment is performed after a concentration of a solvent gas obtained by gasification of the solvent, which remains in a chamber of a heating device for performing the heat treatment, is a predetermined concentration threshold or lower. |
申请公布号 |
US2016164068(A1) |
申请公布日期 |
2016.06.09 |
申请号 |
US201514957717 |
申请日期 |
2015.12.03 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
Yano Shimpei |
分类号 |
H01M4/04 |
主分类号 |
H01M4/04 |
代理机构 |
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代理人 |
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主权项 |
1. A method of manufacturing a membrane electrode assembly in which an electrode catalyst layer is formed on a surface of an electrolyte membrane, the method comprising:
drying a substrate sheet to which a catalyst ink is applied, the catalyst ink containing catalyst support particles on which a catalytic metal is supported, a solvent, and an ionomer; performing a heat treatment on the substrate sheet, on which the catalyst ink is dried, after the drying at a heat treatment temperature which is equal to or higher than a glass transition temperature of the ionomer to prepare the electrode catalyst layer; and bonding the prepared electrode catalyst layer to the electrolyte membrane through thermocompression bonding to prepare the membrane electrode assembly, wherein the heat treatment is performed after a concentration of a solvent gas obtained by gasification of the solvent, which remains in a chamber of a heating device for performing the heat treatment, is a predetermined concentration threshold or lower. |
地址 |
Toyota-shi JP |