Ceramic coatings for insulating modular fuel cell cassettes in a solid-oxide fuel cell stack
    3.
    发明授权
    Ceramic coatings for insulating modular fuel cell cassettes in a solid-oxide fuel cell stack 有权
    用于在固体氧化物燃料电池堆中绝缘模块化燃料电池盒的陶瓷涂层

    公开(公告)号:US07422819B2

    公开(公告)日:2008-09-09

    申请号:US11158369

    申请日:2005-06-22

    IPC分类号: H01M2/08

    摘要: In assembling an SOFC fuel cell stack from a plurality of cassettes, the mounting plate of one cassette is attached to, and insulated from, the separator plate of the next-adjacent cassette by a peripheral dielectric seal consisting of a ceramic coating and a metal braze. Materials suitable for the ceramic coating include yttrium stabilized zirconia (YSZ), zirconia toughened alumina, magnesium silicates such as the mineral forsterite, magnesium aluminates, magnesium aluminosilicates and lanthanum zirconate. The ceramic coating may be applied to the cassette's outer surface in known fashion as by physical vapor deposition, chemical vapor deposition, sputtering, and various methods of plasma spray. An underlayer of alumina may also be used to provide a redundant layer of electrical insulation.

    摘要翻译: 在从多个盒组装SOFC燃料电池堆时,一个盒的安装板通过由陶瓷涂层和金属钎焊组成的外围电介质密封件附接到下一相邻盒的隔板并与之隔绝 。 适用于陶瓷涂层的材料包括钇稳定氧化锆(YSZ),氧化锆增韧氧化铝,硅酸镁如矿物镁橄榄石,铝酸镁,硅铝酸镁和锆酸镧。 陶瓷涂层可以通过物理气相沉积,化学气相沉积,溅射和各种等离子体喷涂方法以已知的方式施加到盒的外表面。 也可以使用氧化铝的底层来提供冗余的电绝缘层。

    Compliant current collector for fuel cell anode and cathode
    4.
    发明授权
    Compliant current collector for fuel cell anode and cathode 有权
    符合燃料电池阳极和阴极的集电器

    公开(公告)号:US08048587B2

    公开(公告)日:2011-11-01

    申请号:US10305881

    申请日:2002-11-27

    IPC分类号: H01M4/86 H01M8/02

    摘要: An electrically-conductive mesh spacer incorporated into the hydrogen and air gas flow spaces between each anode and cathode and its adjacent interconnect in a fuel cell stack. The mesh is formed of metal strands and is formed into a predetermined three-dimensional pattern to make contact at a plurality of points on the surfaces of the electrode and the interconnect element. The formed mesh spacer is secured as by brazing to the interconnect element at a plurality of locations to form an interconnect, which preserves the pattern during assembly of a fuel cell stack. The height of the formed pattern is greater than the height of a gas flow space after fuel cell assembly, such that the mesh spacer is slightly compressed during assembly of a fuel cell stack. Because the metal mesh is both compliant and resilient, the compressed spacer is continuously urged into mechanical and electrical contact with its electrode over all temperatures and pressures to which the fuel cell assembly may be subjected during use.

    摘要翻译: 导电网格隔离物,其结合在燃料电池堆中的每个阳极和阴极之间的氢气和空气气体流动空间及其相邻的互连中。 网格由金属线形成,并且形成为预定的三维图案以在电极和互连元件的表面上的多个点处接触。 形成的网格间隔件通过在多个位置处通过钎焊固定到互连元件上,以形成互连,其在燃料电池堆的组装期间保持图案。 形成的图案的高度大于燃料电池组件之后的气体流动空间的高度,使得在燃料电池堆的组装期间网格间隔件被轻微地压缩。 因为金属网既顺从又具有弹性,所以在使用期间燃料电池组件可能经受的所有温度和压力下,压缩间隔物被连续推动与其电极机械和电接触。

    Metal-ceramic composite air braze with ceramic particulate
    6.
    发明申请
    Metal-ceramic composite air braze with ceramic particulate 审中-公开
    金属陶瓷复合空气钎焊陶瓷颗粒

    公开(公告)号:US20080217382A1

    公开(公告)日:2008-09-11

    申请号:US11715160

    申请日:2007-03-07

    IPC分类号: B23K1/00 B23K35/22

    摘要: A method for joining together two or more ceramic and/or metal parts by providing a braze consisting of a mixture of copper oxide, silver, and ceramic particulate. The braze is placed upon the surfaces of the parts, which are then held together for sufficient time and at a sufficient temperature to cause the braze to form a bond between the parts. The addition of the ceramic particulate increases the viscosity of the braze, decreasing squeeze out, decreasing the formation of air pockets, decreases the formation of brittle phases by providing nucleation sites and increases the flexural strength of the joint.

    摘要翻译: 一种通过提供由铜氧化物,银和陶瓷颗粒的混合物组成的钎焊将两个或多个陶瓷和/或金属部件接合在一起的方法。 钎焊被放置在部件的表面上,然后将它们保持在一起足够的时间并且在足够的温度下使钎焊在部件之间形成粘合。 添加陶瓷颗粒会增加钎焊的粘度,减少挤出,减少气泡的形成,通过提供成核位置减少脆性相的形成并增加接头的弯曲强度。