Glass-ceramic seals for use in solid oxide fuel cells
    25.
    发明授权
    Glass-ceramic seals for use in solid oxide fuel cells 有权
    用于固体氧化物燃料电池的玻璃 - 陶瓷密封件

    公开(公告)号:US07470640B2

    公开(公告)日:2008-12-30

    申请号:US11546237

    申请日:2006-10-11

    Abstract: The invention is directed to highly crystalline, frit-sintered glass-ceramic materials and seals made using them that are suitable for solid oxide fuel cell applications. The seals have a coefficient of thermal expansion in the range of 70-130×10−7° C., preferably 85-115×10−7° C. The glass-ceramic materials have a crystalline component and a glass component, the crystalline component being>50% of the glass-ceramic and the glass component being 75%. Regarding the crystalline component only,>50% of the crystals in the crystalline component of the glass-ceramic has a structure selected from the structural groups represented by walstromite, cyclowollastonite, μ-(Ca,Sr)SiO3, kalsilite, kaliophilite and wollastonite (the primary crystalline phase) and the remaining

    Abstract translation: 本发明涉及高度结晶的烧结玻璃陶瓷材料和使用它们制造的适用于固体氧化物燃料电池应用的密封件。 密封件的热膨胀系数为70-130×10-7℃,优选为85-115×10-7℃。玻璃 - 陶瓷材料具有结晶成分和玻璃成分,结晶成分> 50 玻璃陶瓷和玻璃组分的%为<50%。 在一个优选实施方案中,结晶组分> 75%。 关于结晶成分,玻璃 - 陶瓷的结晶成分中的> 50%的结晶具有选自由硬质铁矿,环状硅灰石,mu-(Ca,Sr)SiO 3,硅酸镁,闪锌矿和硅灰石( 主结晶相),剩余的<50%的结晶成分是至少一个第二结晶相。 通常,本发明的玻璃陶瓷可用作金属对金属,金属对陶瓷和陶瓷到陶瓷密封剂。

    Method of making a fuel cell device assembly and frame
    26.
    发明授权
    Method of making a fuel cell device assembly and frame 失效
    制造燃料电池装置组件和框架的方法

    公开(公告)号:US07416760B2

    公开(公告)日:2008-08-26

    申请号:US11254308

    申请日:2005-10-19

    Abstract: An exemplary method of making a fuel cell device assemblies includes the steps of: (i) providing a ceramic batch; (ii) extruding the ceramic batch through a die and a mask to form green extrudate that, in cross-section, has at least 10 cells/in2 and wall thickness of 50 mils or less; (iii) cutting the green extrudate to an appropriate length to form a green frame blank; (iv) sintering the green frame blank at a temperature of at least 1200° C., preferably at a temperature of between 1400° C. and 1600° C. for at least one hour to form a ceramic frame with a plurality of parallel channels; (v) inserting at least one fuel cell array into its designated position within the ceramic frame; and (vi) sealing the at least one fuel cell array to the frame.

    Abstract translation: 制造燃料电池装置组件的示例性方法包括以下步骤:(i)提供陶瓷批料; (ii)通过模具和掩模挤出陶瓷批料以形成绿色挤出物,其横截面具有至少10个细胞/平方厘米和50密耳或更小的壁厚; (iii)将绿色挤出物切割成适当的长度以形成绿色框架坯料; (iv)在至少1200℃的温度下,优选在1400℃至1600℃的温度下烧结绿色框架坯料至少1小时以形成具有多个平行通道的陶瓷框架 ; (v)将至少一个燃料电池阵列插入陶瓷框架内的指定位置; 和(vi)将所述至少一个燃料电池阵列密封到所述框架。

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