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    • 4. 发明授权
    • UV-curable fuel cell sealants and fuel cells formed therefrom
    • 可UV固化的燃料电池密封剂和由其形成的燃料电池
    • US08197989B2
    • 2012-06-12
    • US12161237
    • 2007-01-16
    • Anthony F. JacobineJohn G. WoodsSteven T. NakosMatthew P. BurdzyBrian R. EinslaKevin J. Welch
    • Anthony F. JacobineJohn G. WoodsSteven T. NakosMatthew P. BurdzyBrian R. EinslaKevin J. Welch
    • H01M8/02B29C45/14
    • H01M8/0284H01M8/0258H01M8/0273H01M8/0276H01M8/0297H01M8/2404H01M8/241H01M8/249
    • A fuel cell, having improved sealing against leakage, includes a fuel cell component having a cured sealant, wherein the cured sealant includes a telechelic-functional polyisobutylene, an organhydrogenosilane crosslinker, a platinum catalyst and a photoinitiator. The fuel cell component may be a cathode flow field plate, an anode flow field plate, a resin frame, a gas diffusion layer, an anode catalyst layer, a cathode catalyst layer, a membrane electrolyte, a membrane-electrode-assembly frame, and combinations thereof. A method for forming such a fuel cell includes the steps of providing a fuel cell component including a substrate; providing a mold having a cavity; positioning the mold so that the cavity is in fluid communication with the substrate; applying a curable liquid sealant composition into the cavity, wherein the curable sealant composition includes a telechelic-functional polyisobutylene, an organhydrogenosilane crosslinker, a platinum catalyst and a photoinitiator; and curing the composition with actinic radiation.
    • 具有改进的泄漏密封性的燃料电池包括具有固化的密封剂的燃料电池部件,其中固化的密封剂包括遥爪功能聚异丁烯,有机氢硅烷交联剂,铂催化剂和光引发剂。 燃料电池部件可以是阴极流场板,阳极流场板,树脂框架,气体扩散层,阳极催化剂层,阴极催化剂层,膜电解质,膜 - 电极 - 组装框架,以及 其组合。 一种形成这种燃料电池的方法包括以下步骤:提供包括基板的燃料电池部件; 提供具有空腔的模具; 定位模具使空腔与衬底流体连通; 将可固化液体密封剂组合物施加到空腔中,其中可固化密封剂组合物包括遥爪功能性聚异丁烯,有机氢硅烷交联剂,铂催化剂和光引发剂; 并用光化辐射固化组合物。