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    • 8. 发明授权
    • Process for producing a cation-exchanging polymer electrolyte membrane (PEM)
    • 阳离子交换聚合物电解质膜(PEM)的制造方法
    • US06214891B1
    • 2001-04-10
    • US09171756
    • 1998-12-22
    • Arnold SchnellerHelmut Witteler
    • Arnold SchnellerHelmut Witteler
    • C08J520
    • H01M4/926B01J31/10B01J35/065C25B9/10H01M4/921H01M8/1004H01M2300/0082
    • A method for preparing a cation exchange membrane, comprising the introduction of an organic polymer having sulfonic acid groups and of finely disperse electrically conductive particles of a catalyst material into a liquid phase, the resulting suspension being used to coat a foil of a cation exchange material on at least one side, wherein the organic polymer having sulfonic acid groups is soluble in an aprotic polar solvent and contains units of the formulae (Ar1X) and (Ar2Y) which are at least partially substituted by sulfonic acid groups, Ar1 and Ar2 being identical or different bivalent arylene radicals, X being oxygen or sulfur and Y being a carbonyl radical, sulfoxide radical or sulfonyl radical and said material being dissolved in a solvent, a finely disperse electrically conductive catalyst material being suspended in the solution and this suspension being used to coat a foil which contains a polymeric cation exchanger having sulfonic acid groups and the coating which still contains solvent being treated with a liquid which is miscible with the solvent, but in which the dissolved cation exchange material is insoluble, so that pores are formed in the top layer of the membrane.
    • 一种制备阳离子交换膜的方法,包括引入具有磺酸基的有机聚合物和将催化剂材料的导电颗粒细分散到液相中,所得悬浮液用于涂覆阳离子交换材料的箔 在至少一面上,其中具有磺酸基的有机聚合物可溶于非质子极性溶剂,并且含有至少部分被磺酸基取代的式(Ar1X)和(Ar2Y)单元,Ar1和Ar2相同 或不同的二价亚芳基,X为氧或硫,Y为羰基,亚砜基或磺酰基,所述物质溶于溶剂中,将细分散的导电催化剂材料悬浮于溶液中,该悬浮液用于 涂覆含有具有磺酸基团的聚合物阳离子交换剂的箔,并且涂层仍然含有 溶剂用可与溶剂混溶的液体处理,但其中溶解的阳离子交换材料不溶,使得在膜的顶层中形成孔。