Integrated seal for high-temperature electrochemical device
    1.
    发明授权
    Integrated seal for high-temperature electrochemical device 有权
    高温电化学装置集成密封

    公开(公告)号:US08486580B2

    公开(公告)日:2013-07-16

    申请号:US12988297

    申请日:2008-06-12

    IPC分类号: H01M4/00

    摘要: The present invention provides electrochemical device structures having integrated seals, and methods of fabricating them. According to various embodiments the structures include a thin, supported electrolyte film with the electrolyte sealed to the support. The perimeter of the support is self-sealed during fabrication. The perimeter can then be independently sealed to a manifold or other device, e.g., via an external seal. According to various embodiments, the external seal does not contact the electrolyte, thereby eliminating the restrictions on the sealing method and materials imposed by sealing against the electrolyte.

    摘要翻译: 本发明提供具有集成密封件的电化学装置结构及其制造方法。 根据各种实施方案,结构包括薄的负载的电解质膜,电解质密封到载体上。 支架的周边在制造过程中是自密封的。 然后可以例如经由外部密封件将周边独立地密封到歧管或其他装置。 根据各种实施例,外部密封件不接触电解质,从而消除了对通过密封电解质施加的密封方法和材料的限制。

    CU-BASED CERMET FOR HIGH-TEMPERATURE FUEL CELL
    2.
    发明申请
    CU-BASED CERMET FOR HIGH-TEMPERATURE FUEL CELL 审中-公开
    基于CU的高温燃料电池

    公开(公告)号:US20110053041A1

    公开(公告)日:2011-03-03

    申请号:US12865956

    申请日:2008-02-13

    摘要: Copper-based cermets and methods of preparing them are provided. The Cu-based cermets have interpenetrating networks of copper alloy and stabilized zirconia that are in intimate contact and display high electronic connectivity through the copper alloy phase. In certain embodiments, methods of preparing the cermets involving sintering a mixture of ceramic and copper-based powders in a reducing atmosphere at a temperature above the melting point of the copper or copper alloy are provided. Also provided are electrochemical structures having the Cu-based cermet, e.g., as an anode structure or a barrier layer between an anode and a metal support. Applications of the cermet compositions and structures include use in high-operating-temperature electrochemical devices, including solid oxide fuel cells, hydrogen generators, electrochemical flow reactors, etc.

    摘要翻译: 提供铜基金属陶瓷及其制备方法。 铜基金属陶瓷具有铜合金和稳定化氧化锆的互穿网络,其通过铜合金相紧密接触并显示出高电子连接性。 在某些实施方案中,提供了制备金属陶瓷的方法,所述方法包括在铜或铜合金的熔点以上的温度下在还原气氛中烧结陶瓷和铜基粉末的混合物。 还提供了具有Cu基金属陶瓷的电化学结构,例如阳极结构或阳极和金属载体之间的阻挡层。 金属陶瓷组合物和结构的应用包括用于高工作温度电化学装置,包括固体氧化物燃料电池,氢发生器,电化学流动反应器等。

    Planar electrochemical device assembly
    3.
    发明授权
    Planar electrochemical device assembly 失效
    平面电化学装置组装

    公开(公告)号:US07829213B2

    公开(公告)日:2010-11-09

    申请号:US11796659

    申请日:2007-04-27

    摘要: A pre-fabricated electrochemical device having a dense electrolyte disposed between an anode and a cathode preferably deposited as thin films is bonded to a porous electrically conductive support. A second porous electrically conductive support may be bonded to a counter electrode of the electrochemical device. Multiple electrochemical devices may be bonded in parallel to a single porous support, such as a perforated sheet to provide a planar array. Planar arrays may be arranged in a stacked interconnected array. A method of making a supported electrochemical device is disclosed wherein the method includes a step of bonding a pre-fabricated electrochemical device layer to an existing porous metal or porous metal alloy layer.

    摘要翻译: 设置在优选沉积为薄膜的阳极和阴极之间的具有致密电解质的预制电化学装置被接合到多孔导电支撑体上。 第二多孔导电支撑件可以结合到电化学装置的对电极。 多个电化学装置可以与单个多孔载体(例如穿孔板)平行地结合以提供平面阵列。 平面阵列可以布置在堆叠的互连阵列中。 公开了一种制造负载电化学装置的方法,其中该方法包括将预制的电化学装置层接合到现有的多孔金属或多孔金属合金层的步骤。

    Braze System With Matched Coefficients Of Thermal Expansion
    7.
    发明申请
    Braze System With Matched Coefficients Of Thermal Expansion 审中-公开
    钎焊系统具有匹配的热膨胀系数

    公开(公告)号:US20080131723A1

    公开(公告)日:2008-06-05

    申请号:US11791269

    申请日:2005-11-23

    摘要: A CTE modified braze composition that can be utilized to manufacture a strong, gastight joint where at least one of the joining members comprises a ceramic (e.g., a ceramic or a cermet). The braze composition is formulated so as to reduce the thermal stress that results from the mismatch of thermal expansion coefficients between a ceramic joining member and the braze or other joining members. The braze composition comprises a braze alloy in powder, paste or bulk form mixed with one or more particulate or fibrous fillers that exhibit a low (i.e., no more than 6 ppm/K) or negative coefficient of thermal expansion. The braze composition can be used to join members, at least one of which comprises ceramic, and to a composite member produced by joining the two or more members.

    摘要翻译: CTE改性的钎焊组合物,其可用于制造强气密接头,其中至少一个接合构件包括陶瓷(例如陶瓷或金属陶瓷)。 配制钎焊组合物以便减少由陶瓷接合部件和钎焊或其它接合部件之间的热膨胀系数失配引起的热应力。 钎焊组合物包括与表现出低(即不超过6ppm / K)或负的热膨胀系数的一种或多种颗粒或纤维填料混合的粉末,糊状或块状的钎焊合金。 钎焊组合物可以用于连接构件,其中至少一个包括陶瓷,以及通过连接两个或更多个构件制成的复合构件。

    Structures and fabrication techniques for solid state electrochemical devices
    8.
    发明授权
    Structures and fabrication techniques for solid state electrochemical devices 失效
    固态电化学装置的结构和制造技术

    公开(公告)号:US06605316B1

    公开(公告)日:2003-08-12

    申请号:US09626629

    申请日:2000-07-27

    IPC分类号: B05D512

    摘要: Provided are low-cost, mechanically strong, highly electronically conductive porous substrates and associated structures for solid-state electrochemical devices, techniques for forming these structures, and devices incorporating the structures. The invention provides solid state electrochemical device substrates of novel composition and techniques for forming thin electrode/membrane/electrolyte coatings on the novel or more conventional substrates. In particular, in one embodiment the invention provides techniques for co-firing of device substrate (often an electrode) with an electrolyte or membrane layer to form densified electrolyte/membrane films 5 to 20 microns thick. In another embodiment, densified electrolyte/membrane films 5 to 20 microns thick may be formed on a pre-sintered substrate by a constrained sintering process. In some cases, the substrate may be a porous metal, alloy, or non-nickel cermet incorporating one or more of the transition metals Cr, Fe, Cu and Ag, or alloys thereof.

    摘要翻译: 提供了低成本,机械强度高的电子导电多孔基底和用于固态电化学装置的相关结构,用于形成这些结构的技术以及结合该结构的装置。 本发明提供了用于在新颖或更传统的基底上形成薄电极/膜/电解质涂层的新型组成和技术的固态电化学装置基板。 特别地,在一个实施例中,本发明提供了用于通过电解质或膜层共同烧制器件衬底(通常为电极)以形成5至20微米厚的致密化电解质/膜膜的技术。 在另一个实施方案中,可以通过约束烧结工艺在预烧结衬底上形成5至20微米厚的致密化电解质/膜膜。 在一些情况下,衬底可以是掺入一种或多种过渡金属Cr,Fe,Cu和Ag的多孔金属,合金或非镍金属陶瓷,或其合金。

    Sealed Joint Structure for Electrochemical Device
    10.
    发明申请
    Sealed Joint Structure for Electrochemical Device 有权
    电化学装置密封接头结构

    公开(公告)号:US20080268323A1

    公开(公告)日:2008-10-30

    申请号:US11791270

    申请日:2005-11-28

    IPC分类号: H01M2/08

    摘要: Several members make up a joint in a high-temperature electrochemical device, wherein the various members perform different functions. The joint is useful for joining multiple cells (generally tubular modules) of an electrochemical device to produce a multi-cell segment-in-series stack for a solid oxide fuel cell, for instance. The joint includes sections that bond the joining members to each other; one or more seal sections that provide gas-tightness, and sections providing electrical connection and/or electrical insulation between the various joining members. A suitable joint configuration for an electrochemical device has a metal joint housing, a first porous electrode, a second porous electrode, separated from the first porous electrode by a solid electrolyte, and an insulating member disposed between the metal joint housing and the electrolyte and second electrode. One or more brazes structurally and electrically connects the first electrode to the metal joint housing and forms a gas tight seal between the first electrode and the second electrode.

    摘要翻译: 几个构件在高温电化学装置中构成接头,其中各种构件执行不同的功能。 该接头可用于连接电化学装置的多个电池(通常为管状模块),以产生例如用于固体氧化物燃料电池的多电池段串联堆叠。 接头包括将接合构件彼此接合的部分; 提供气密性的一个或多个密封部分,以及在各种连接部件之间提供电连接和/或电绝缘的部分。 用于电化学装置的合适的接头构造具有金属接头壳体,第一多孔电极,第二多孔电极,通过固体电解质与第一多孔电极分离,以及设置在金属接头壳体和电解质之间的绝缘构件,第二多孔电极 电极。 一个或多个钎焊结构地和电连接第一电极和金属接头壳体,并在第一电极和第二电极之间形成气密密封。