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    • 6. 发明授权
    • High temperature fuel cell
    • 高温燃料电池
    • US06667126B1
    • 2003-12-23
    • US09398690
    • 1999-09-20
    • Harald LandesFranz RichterHermann Schichl
    • Harald LandesFranz RichterHermann Schichl
    • H01M486
    • H01M4/9033
    • A high temperature fuel cell has a cathode which comprises at least a first layer and a second layer disposed on one side of the first layer, in which the first layer contains 30 to 60% by weight of a first electrolyte made up of zirconium oxide ZrO2 and at least one proportion of scandium oxide Sc2O3, and the second layer comprises substoichiometric lanthanum strontium manganate having the formula LaxSryMnO3 in which the sum of x and y is less than 1. By means of this, a high ionic conductivity is achieved for the cathode (6). The ionic conductivity further remains substantially constant as a function of the operating time t.
    • 高温燃料电池具有阴极,该阴极至少包括设置在第一层一侧的第一层和第二层,其中第一层含有30至60重量%的由氧化锆ZrO2组成的第一电解质 和至少一种比例的氧化钪Sc 2 O 3,第二层包括具有式X和Y的和小于1的式LaxSryMnO 3的亚化学计量的镧镧锰酸锶。由此,对于阴极,实现了高离子电导率 (6)。 离子电导率进一步作为操作时间t的函数保持基本恒定。
    • 7. 发明授权
    • Process for sealing high-temperature fuel cells
    • 密封高温燃料电池的工艺
    • US5532071A
    • 1996-07-02
    • US426561
    • 1995-04-19
    • Uday PalHarald LandesHorst Greiner
    • Uday PalHarald LandesHorst Greiner
    • C23C16/04H01M8/02H01M8/12H01M8/24H01M8/04
    • C23C16/045H01M8/0271H01M8/2425Y02P70/56Y02T50/67
    • A process for sealing leaks gas spaces and/or gas channels between individual components of high-temperature fuel cells, includes introducing at least first and second and optionally further different gases at high temperature from the outside into the gas spaces and/or gas channels to be sealed off from one another, for flushing every leak with the first gas on one side and with the second or further gas on the other side. The first gas contains at least one gaseous compound that can be oxidized to form a metal ion-conducting and/or an oxygen ion-conducting oxide, and the second and optionally further gas contains oxygen and/or is able to give off oxygen. The first gas contains at least one oxidizable compound of at least one of the metals of an electrolyte material, a bipolar plate and electrodes of the fuel cells, and/or one element of the group including zirconium, nickel, calcium, magnesium, cerium and rare earth metal. A high-temperature fuel cell produced by the process includes individual components having previously leaking points therebetween. Inlays of metal ion-conducting and/or oxygen ion-conducting oxides are disposed in the vicinity of the previously leaking points. The inlays are formed of oxides of at least one of the metals of electrolyte material, a bipolar plate, electrodes, zirconium, nickel, calcium, magnesium, cerium, hafnium and rare earth metal.
    • 一种用于密封泄漏高温燃料电池的各个部件之间的气体空间和/或气体通道的方法包括将高温下的至少第一和第二和任选的另外不同的气体从外部引入到气体空间和/或气体通道中, 彼此密封,用于冲洗一侧的第一气体和另一侧的第二气体或其他气体的每一次泄漏。 第一气体含有至少一种可被氧化以形成金属离子导电和/或氧离子传导氧化物的气态化合物,第二气体和任选的另外的气体含有氧和/或能够释放出氧。 第一气体含有至少一种电解质材料,双极板和燃料电池的电极中的至少一种金属的可氧化化合物,和/或包括锆,镍,钙,镁,铈和 稀土金属。 通过该方法制造的高温燃料电池包括其间具有先前泄漏点的各个部件。 金属离子传导和/或氧离子传导氧化物的镶嵌物设置在先前泄漏点附近。 嵌体由电解质材料,双极板,电极,锆,镍,钙,镁,铈,铪和稀土金属中的至少一种金属的氧化物形成。