ELECTROLYTE MEMBRANE OF MEMBRANE-ELECTRODE ASSEMBLY INCLUDING ELECTRONIC INSULATION LAYER AND PREPARATION METHOD THEREOF

Disclosed are an electrolyte membrane of a membrane-electrode assembly including an electronic insulation layer, which greatly improves the durability of the electrolyte membrane, and a method of preparing the same. The electrolyte membrane includes an ion exchange layer and an electronic insulation layer provided on the ion exchange layer, and the electronic insulation layer includes one or morecatalyst complexes, and a second ionomer Particularly, each of the one or more catalyst complex includes a catalyst particle and a first ionomer coated on the entirety or a portion of the surface of the catalyst particle, and the one or more catalyst complexes are dispersed the second ionomer. 本发明涉及膜-电极组件的包括电子绝缘层的电解质膜及其制备方法，所述电子绝缘层极大地改进电解质膜的耐久性。所述电解质膜包括离子交换层以及设置在离子交换层上的电子绝缘层，所述电子绝缘层包括一种或更多种催化剂复合物和第二离聚物。具体地，一种或更多种催化剂复合物中的每一种包括催化剂颗粒和涂覆在催化剂颗粒的整个或部分表面上的第一离聚物，并且一种或更多种催化剂复合物分散在第二离聚物中。