Process for producing a cation-exchanging polymer electrolyte membrane (PEM)
    72.
    发明授权
    Process for producing a cation-exchanging polymer electrolyte membrane (PEM) 失效
    阳离子交换聚合物电解质膜(PEM)的制造方法

    公开(公告)号:US06214891B1

    公开(公告)日:2001-04-10

    申请号:US09171756

    申请日:1998-12-22

    IPC分类号: C08J520

    摘要: 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.

    摘要翻译: 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。

    Process for continuous production of membrane-electrode composites
    73.
    发明授权
    Process for continuous production of membrane-electrode composites 有权
    连续生产膜 - 电极复合材料的方法

    公开(公告)号:US06197147B1

    公开(公告)日:2001-03-06

    申请号:US09091659

    申请日:1999-04-05

    IPC分类号: B32B3100

    摘要: A process for producing laminates which contain at least one centrally arranged, ion-conductive membrane which is, at least over a substantial part of its two mutually opposite flat faces, electrically conductively bonded to at least one catalytically active substance and to at least one two-dimensional, gas-permeable, electron-conductive contacting material, the bonding of at least two of the said components having been effected by lamination. The process comprises carrying out the bonding of the ion-conductive membrane, of the catalytically active substance and of the electron-conductive contacting material continuously. The ion-conductive membrane is brought together with at least the electron-conductive contacting material in the exact position by means of transport and feeding devices and the two components are laminated and bonded to one another by pressing them together. The range of variation in the a.c. resistances of the laminates produced by the process according to the invention is ±10%. The laminates are particularly suitable for use in fuel cells or electrolysers.

    摘要翻译: 一种制备层压体的方法,其包含至少一个中心布置的离子传导膜,其至少在其两个相互相对的平坦表面的至少大部分上与导电键合至至少一种催化活性物质和至少一种二 三维,透气,电子传导的接触材料,至少两个所述组分的结合已通过层压实现。 该方法包括连续地进行催化活性物质和电子传导性接触材料的离子传导膜的接合。 离子传导膜通过输送和进料装置与至少电子传导接触材料在精确位置一起被带到一起,并且两个部件通过将它们压在一起而彼此层压并结合。 a.c.的变化范围。 根据本发明的方法生产的层压体的电阻为±10%。 层压板特别适用于燃料电池或电解槽。