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    • 4. 发明申请
    • SOLID OXIDE FUEL CELL
    • 固体氧化物燃料电池
    • US20090191440A1
    • 2009-07-30
    • US12350323
    • 2009-01-08
    • Makoto OhmoriNatsumi ShimogawaToshiyuki NakamuraTsutomu Nanataki
    • Makoto OhmoriNatsumi ShimogawaToshiyuki NakamuraTsutomu Nanataki
    • H01M8/10
    • H01M8/2432H01M8/0258H01M8/1253H01M8/2404H01M8/2435H01M8/2483Y02E60/521Y02E60/525Y02P70/56
    • A solid oxide fuel cell has a stack structure in which sheet bodies and separators for separating air and fuel gas are stacked in alternating layers. Each of the sheet bodies includes an electrolyte layer, a fuel electrode layer formed on the upper surface of the electrolyte layer, and an air electrode layer formed on the lower surface of the electrolyte layer, wherein these layers are stacked and fired in such a manner that the electrolyte layer is sandwiched between the fuel electrode layer and the air electrode layer. The thickness of the electrolyte layer is 0.3 μm or more and 5 μm or less, and the electrolyte layer is composed of a single particle of YSZ in the thickness direction. Thus, the electrolyte layer is extremely thin, and further, the grain boundary in the thickness direction is small. Accordingly, the IR loss (electric resistance) of the electrolyte layer can remarkably be reduced.
    • 一种固体氧化物燃料电池具有堆叠结构,其中用于分离空气和燃料气体的片体和隔板以交替层叠。 每个片体包括电解质层,形成在电解质层的上表面上的燃料电极层和形成在电解质层的下表面上的空气电极层,其中这些层以这种方式堆叠和烧制 电解质层夹在燃料电极层和空气电极层之间。 电解质层的厚度为0.3μm以上5μm以下,电解质层由YSZ的厚度方向的单一粒子构成。 因此,电解质层极薄,厚度方向的晶界较小。 因此,电解质层的IR损失(电阻)可以显着降低。
    • 10. 发明申请
    • THIN PLATE MEMBER FOR UNIT CELL OF SOLID OXIDE FUEL CELL
    • 固体氧化物燃料电池单元薄板组件
    • US20080096076A1
    • 2008-04-24
    • US11857702
    • 2007-09-19
    • Makoto OHMORINatsumi ShimogawaTsutomu Nanataki
    • Makoto OHMORINatsumi ShimogawaTsutomu Nanataki
    • H01M8/10
    • H01M8/1213H01M8/023H01M8/0247H01M8/0289H01M8/1226H01M8/1286H01M2008/1293
    • A thin plate member 10 includes an electrolyte layer 11, a fuel electrode layer 12 laminated and formed on the upper surface of the electrolyte layer 11 and having a thermal expansion coefficient greater than that of the electrolyte layer 11, and an air electrode layer 13 laminated and formed on the lower surface of the electrolyte layer 11. Further, a porous layer 14 made of a porous insulating member having a thermal expansion coefficient smaller than that of the fuel electrode layer 12 and a terminal 15 for taking generated power to the outside are laminated and formed extremely uniformly on the upper surface of the fuel electrode layer 12 in plan view. As a result, the warp of the whole thin plate member 10 with respect to the internal stress caused by the difference in the thermal expansion coefficient between layers can be suppressed. Further, since the porous layer 14 interposed between the fuel gas flow path and the fuel electrode layer 12 is made of a porous member, the circulation of the fuel gas to the upper surface of the fuel electrode layer 12 is difficult to be hindered, whereby the permeability of the fuel gas can be secured.
    • 薄板构件10包括电解质层11,层叠并形成在电解质层11的上表面上并且具有大于电解质层11的热膨胀系数的热膨胀系数的电解质层12和层压的空气电极层13 并形成在电解质层11的下表面上。 此外,由具有小于燃料电极层12的热膨胀系数的多孔绝缘构件制成的多孔层14和用于向外部产生动力的端子15层叠并非常均匀地形成在燃料的上表面上 电极层12。 结果,可以抑制整个薄板构件10相对于由层之间的热膨胀系数的差引起的内应力的翘曲。 此外,由于介于燃料气体流路和燃料电极层12之间的多孔层14由多孔部件构成,所以难以妨碍燃料气体向燃料电极层12的上表面的循环,由此 可以确保燃料气体的渗透性。