POLYMER ELECTROLYTE COMPOSITION, AND POLYMER ELECTROLYTE MEMBRANE, MEMBRANE ELECTRODE COMPLEX AND SOLID POLYMER-TYPE FUEL CELL EACH PRODUCED USING SAME
申请人:TORAY INDUSTRIES, INC.
公开号:US20150295262A1
公开(公告)日:2015-10-15
The present invention provides: a polymer electrolyte composition which can achieve excellent proton conductivity under slightly humidified conditions, excellent mechanical strength and excellent physical durability, has excellent practicality, and can be produced using a nitrogen-containing additive, wherein the nitrogen-containing additive can prevent the elution of the additive under a strongly acidic atmosphere during the operation of a fuel cell, has excellent chemical stability so as to tolerate a strongly acidic atmosphere, can be dissolved in various general-purpose organic solvents, has superior processability, can be mixed with an ionic-group-containing polymer, can prevent the occurrence of phase separation during the formation of a film, and can prevent the formation of an island-in-sea-like phase separation structure or the occurrence of bleeding out during the formation of a film; and a polymer electrolyte membrane, a membrane electrode assembly and a polymer electrolyte fuel cell, each of which is produced using the polymer electrolyte composition. The polymer electrolyte composition according to the present invention comprises at least an ionic-group-containing polymer (A) and a nitrogen-containing additive (B), said polymer electrolyte composition being characterized in that the nitrogen-containing additive (B) is represented by a specific structural formula.
本发明提供了一种聚合物电解质组成物,该组成物在轻微湿润条件下能够实现优异的质子导电性能、优异的机械强度和优异的物理耐久性,具有优异的实用性,并且可以使用含氮添加剂进行制备,其中,该含氮添加剂可以在燃料电池运行时防止添加剂在强酸性气氛下析出,具有优异的化学稳定性以耐受强酸性气氛,可以溶解在各种通用有机溶剂中,具有优越的加工性能,可以与含离子基聚合物混合,并且可以防止在膜形成期间发生相分离,并且可以防止在膜形成期间形成类似于海岛-海洋的相分离结构或者出现出血现象;以及使用该聚合物电解质组成物制备的聚合物电解质膜、膜电极组件和聚合物电解质燃料电池。本发明的聚合物电解质组成物包括至少一种含离子基的聚合物(A)和一种含氮添加剂(B),所述聚合物电解质组成物的特点是该含氮添加剂(B)由一种特定的结构式表示。