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    • 4. 发明申请
    • FUEL CELL
    • 燃料电池
    • US20090042090A1
    • 2009-02-12
    • US12088199
    • 2006-09-25
    • Nobuyasu NegishiJun MommaYumiko TakizawaYukinori AkamotoYuuichi SatoGenta Oomichi
    • Nobuyasu NegishiJun MommaYumiko TakizawaYukinori AkamotoYuuichi SatoGenta Oomichi
    • H01M8/00
    • H01M8/1011H01M4/8657H01M8/0245H01M8/0271H01M8/0273H01M8/04171H01M8/04201H01M8/1009H01M8/246H01M2004/8689Y02E60/523
    • The present invention provides a fuel cell comprising: a cathode catalyst layer 2; an anode catalyst layer 3; a proton conductive membrane 6 disposed between the cathode catalyst layer 2 and the anode catalyst layer 3; a liquid fuel tank 9 for storing a liquid fuel L; a fuel vaporizing layer 10 for supplying a vaporized component of the liquid fuel L to the anode catalyst layer 3; a surface layer 15 having an air intake port 14 for supplying an air to the cathode catalyst layer 2; and a moisture retention plate 13A, disposed between the surface layer 15 and the cathode catalyst layer 2, for preventing water generated at the cathode catalyst layer from being evaporated, wherein the moisture retention plate is composed of a laminated body comprising at least two kind of porous members 13a and 13b each having different moisture permeability (moisture retention property). According to the above structure, the water content generated at the cathode catalyst layer can be properly released as battery reaction is advances, and a part of the water content can be flown back to the anode catalyst layer side whereby cell output characteristics can be improved.
    • 本发明提供一种燃料电池,包括:阴极催化剂层2; 阳极催化剂层3; 设置在阴极催化剂层2和阳极催化剂层3之间的质子传导膜6; 用于储存液体燃料L的液体燃料箱9; 用于将液体燃料L的蒸发成分供给到阳极催化剂层3的燃料蒸发层10; 具有用于向阴极催化剂层2供给空气的进气口14的表面层15; 以及设置在表面层15和阴极催化剂层2之间用于防止在阴极催化剂层产生的水蒸发的保湿板13A,其中保湿板由层叠体构成,该层压体包括至少两种 各自具有不同的透湿性(保湿性)的多孔部件13a,13b。 根据上述结构,由于电池反应进行,阴极催化剂层产生的含水量可以适当地释放,并且一部分含水量可以回流到阳极催化剂层侧,从而能够提高电池输出特性。
    • 8. 发明申请
    • FUEL CELL
    • 燃料电池
    • US20100233572A1
    • 2010-09-16
    • US12679439
    • 2008-09-02
    • Akira YajimaJun Momma
    • Akira YajimaJun Momma
    • H01M8/10
    • H01M8/04007H01M8/04067H01M8/04201H01M8/1004H01M8/1011H01M2250/30Y02B90/18Y02E60/523
    • The present invention relates to a fuel cell including: a membrane electrode assembly 10 having an electrolyte membrane 17 sandwiched by a fuel electrode 13 and an air electrode 16; a fuel supply part 43 disposed on the fuel electrode side of the membrane electrode assembly to supply a fuel to the fuel electrode 13; a fuel storage part 41 storing the fuel; and a fuel channel 44 leading the fuel stored in the fuel storage part to the fuel supply part. Since a fuel cell can generate electricity for a long time by being continuously supplied with a fuel, the fuel cell serves as a system advantageous as a power source of a portable electronic device such as a portable phone if it can be made compact. Here, if a user keeps touching a high-temperature portion of the fuel cell, he/she may suffer from low-temperature burn or the like, and therefore, some measure such as providing a heat insulator is necessary, but sufficient heat insulation results in excessively large weight and volume, which leads to a problem that the fuel cell is not suitable as a power source of a portable electronic device. The present invention solves the above problem by the structure in which the fuel channel 44 in the fuel cell is formed as a channel heating the fuel by heat generated in the air electrode and leading the heated fuel to the fuel supply part.
    • 燃料电池技术领域本发明涉及一种燃料电池,其特征在于,包括:具有由燃料电极13和空气电极16夹持的电解质膜17的膜电极接合体10, 燃料供给部43,设置在所述膜电极接合体的燃料电极侧,向所述燃料电极13供给燃料; 存储燃料的燃料储存部41; 以及燃料通道44,其将存储在燃料存储部分中的燃料引导到燃料供应部分。 由于燃料电池可以通过连续供给燃料而长时间地发电,因此如果可以使其小型化,则燃料电池充当诸如便携式电话的便携式电子设备的电源的有利系统。 这里,如果用户保持接触燃料电池的高温部分,则他/她可能遭受低温烧伤等,因此需要诸如提供隔热材料的某些措施,但是足够的隔热结果 在过大的重量和体积上,这导致燃料电池不适合作为便携式电子设备的电源的问题。 本发明通过燃料电池中的燃料通道44形成为通过在空气电极中产生的热量加热燃料的通道并将加热的燃料引导到燃料供给部的结构来解决上述问题。