ELECTROLYTE MATERIAL, LIQUID COMPOSITION, AND MEMBRANE-ELECTRODE ASSEMBLY FOR SOLID POLYMER FUEL CELL
申请人:Asahi Glass Company, Limited
公开号:EP3239189A1
公开(公告)日:2017-11-01
To provide a membrane/electrode assembly excellent in the power generation characteristics in a wide temperature range and a wide humidity range; an electrolyte material suitable for a catalyst layer of the membrane/electrode assembly; and a liquid composition suitable for forming a catalyst layer of the membrane/electrode assembly.
To use an electrolyte material which is formed of a polymer (H) obtained by converting precursor groups in a polymer (F) having structural units (A) based on a perfluoromonomer having a precursor group represented by the formula (g1), structural units (B) represented by the formula (u2), and structural units (C) based on tetrafluoroethylene, wherein the proportion of the structural units (A) is from 8 to 19 mol%, the proportion of the structural units (B) is from 65 to 80 mol%, and the proportion of the structural units (C) is from 1 to 27 mol%, to ion exchange groups.
提供一种在宽温度范围和宽湿度范围内具有优异发电特性的膜/电极组件;一种适用于膜/电极组件催化剂层的电解质材料;以及一种适用于形成膜/电极组件催化剂层的液体组合物。
使用一种电解质材料,该材料由聚合物 (F) 中的前体基团转化而成,聚合物 (F) 的结构单元 (A) 基于具有式 (g1) 所示前体基团的全氟单体,结构单元 (B) 基于式 (u2) 所示前体基团、和基于四氟乙烯的结构单元(C),其中结构单元(A)与离子交换基团的比例为 8 至 19 摩尔%,结构单元(B)与离子交换基团的比例为 65 至 80 摩尔%,结构单元(C)与离子交换基团的比例为 1 至 27 摩尔%。