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    • 5. 发明授权
    • Electrolytic membrane for fuel cell and its manufacturing method, and fuel cell and its manufacturing method
    • 燃料电池用电解膜及其制造方法以及燃料电池及其制造方法
    • US07344791B1
    • 2008-03-18
    • US09936148
    • 2000-03-07
    • Takeo YamaguchiShinichi Nakao
    • Takeo YamaguchiShinichi Nakao
    • H01M8/10
    • H01M8/1011C08J5/2275C08J2327/18C08J2351/00C08J2379/08H01M8/1004H01M8/1009H01M8/1023H01M8/1039H01M8/106H01M8/1072H01M8/1088H01M2300/0088Y02E60/523Y02P70/56
    • A conventional direct methanol solid polymer fuel cell comprises a solid polymer electrolyte as an electrolyte. This type of cell involves some problems; methanol permeates the membrane; the electromotive force lowers because of direct oxidation; and the membrane melts at about 130° C. when the temperature is increased to enhance the catalyst activity. According to the invention, an electrolyte membrane made of a porous substrate (1) that does not swell substantially with methanol and water and has pores (2) filled with a polymer (3) having proton conductivity is produced and used to suppress the permeation of methanol as much as possible, providing an electrolyte membrane for fuel cells endurable in a high-temperature environment, a fuel cell comprising such a membrane, a method of manufacturing such a fuel cell, and a method of manufacturing an electrolyte membrane comprising irradiation a porous substrate having swell-resistance against organic solvent and water with energy and contacting the substrate with a monomer to cause polymerization.
    • 常规的直接甲醇固体聚合物燃料电池包括作为电解质的固体聚合物电解质。 这种类型的电池涉及一些问题; 甲醇渗透膜; 电动势由于直接氧化而降低; 当温度升高时,膜在约130℃下熔融以提高催化剂活性。 根据本发明,制造由多孔基材(1)制成的电解质膜,其不会用甲醇和水基本上膨胀并且具有填充有质子传导性的聚合物(3)的孔(2),并用于抑制渗透 甲醇,提供在高温环境下耐用的燃料电池的电解质膜,包含这种膜的燃料电池,制造这种燃料电池的方法,以及制造电解质膜的方法,其包括将多孔 基材具有对有机溶剂的抗溶胀性和能量的水,并使基材与单体接触以引起聚合。
    • 6. 发明申请
    • Proton-conducting electrolyte membrane, production process thereof, and membrane-electrode assembly and fuel cell using the same
    • 质子导电电解质膜,其制造方法以及使用其的膜 - 电极组件和燃料电池
    • US20080038614A1
    • 2008-02-14
    • US11706364
    • 2007-02-15
    • Satoshi NakazawaTakeo YamaguchiNobuo Hara
    • Satoshi NakazawaTakeo YamaguchiNobuo Hara
    • H01M8/10
    • H01M4/926H01M4/921H01M8/0289H01M8/1025H01M8/1027H01M8/103H01M8/1032H01M8/106H01M8/1062H01M8/1067H01M8/1072Y02P70/56
    • The present invention provides an electrolyte membrane capable of inhibiting permeation of water, methanol or other electrolyte solutions, permeation of hydrogen and oxygen gas, and swelling caused by electrolyte solution, and having superior mechanical strength, a production process thereof and a membrane-electrode assembly and fuel cell using that electrolyte membrane. The electrolyte membrane has a porous base material having a plurality of pores, and a proton-conducting polymer composition retained in said pores, wherein the proton-conducting polymer composition contains an aromatic hydrocarbon resin having protonic acid groups, free water contained in the electrolyte membrane at 25° C. is present at 0.5 molecules or less per each of the protonic acid groups, bound water contained in the electrolyte membrane at 25° C. is present at 1 molecule or less for each of the protonic acid groups, proton conductivity of the electrolyte membrane in water at 25° C. is 0.001 S/cm or more, and methanol permeability of the electrolyte membrane in 30% by weight methanol at 25° C. is 50 (kg·μm/m2·h) or less.
    • 本发明提供能够抑制水,甲醇或其他电解质溶液渗透的电解质膜,氢气和氧气的渗透以及由电解质溶液引起的溶胀,并且具有优异的机械强度,其制造方法和膜 - 电极组件 和使用该电解质膜的燃料电池。 所述电解质膜具有多孔的多孔基材和保留在所述孔中的质子传导聚合物组合物,其中所述质子传导性聚合物组合物含有具有质子酸基的芳香族烃树脂,所述电解质膜中含有游离水 在25℃下,每个质子酸基团以0.5分子或更少的比例存在,在25℃下包含在电解质膜中的结合水对于每个质子酸基团存在1分子以下,质子传导率 在25℃的水中的电解质膜为0.001S / cm以上,25℃下30重量%甲醇中的电解质膜的甲醇透过率为50(kg.mum / m 2) SUP> .h)以下。