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    • 3. 发明授权
    • Method of manufacturing a membrane electrode assembly, membrane electrode assembly and fuel cell
    • 制造膜电极组件,膜电极组件和燃料电池的方法
    • US08663867B2
    • 2014-03-04
    • US12620429
    • 2009-11-17
    • Hiroyuki Morioka
    • Hiroyuki Morioka
    • H01M8/10
    • H01M4/8828H01M4/8807H01M4/881H01M4/8814H01M4/8882H01M8/1004Y02P70/56
    • The present invention provides an MEA which improves water retention properties of an electrode catalyst layer without inhibiting diffusion of a reaction gas and drainage of water produced by an electrode reaction etc. One aspect of the present invention is a manufacturing method of an MEA which includes coating and drying a catalyst ink to form a first electrode catalyst sub-layer, coating and drying a catalyst ink to form a second electrode catalyst sub-layer, and forming the first and the second electrode catalyst sub-layers on a polymer electrolyte membrane in this order, and has a specific feature that a solvent removal rate in drying to form the first electrode catalyst sub-layer is higher than that in drying to form the second electrode catalyst sub-layer.
    • 本发明提供一种改善电极催化剂层的保水性而不抑制反应气体的扩散和由电极反应等产生的水排出的MEA。本发明的一个方面是一种MEA的制造方法,其包括涂布 并干燥催化剂油墨以形成第一电极催化剂子层,涂覆和干燥催化剂油墨以形成第二电极催化剂子层,并且在该聚合物电解质膜上形成第一和第二电极催化剂子层 并且具有干燥形成第一电极催化剂子层的溶剂去除率高于干燥形成第二电极催化剂子层的特征。