ELECTROCHEMICAL REACTION UNIT AND FUEL CELL STACK

    公开(公告)号:US20180076468A1

    公开(公告)日:2018-03-15

    申请号:US15560089

    申请日:2016-03-26

    摘要: An object is to effectively restrain Cr diffusion from a corner portion of a protrusion of a cathode-side current collector. The electrochemical reaction unit includes a single cell including an electrolyte layer containing solid oxide, and a cathode and an anode which face each other in a first direction with the electrolyte layer intervening therebetween; a current collector disposed on a cathode side of the single cell and having a protrusion protruding toward the cathode; an electrically conductive coat covering a surface of the current collector; and an electrically conductive bonding layer bonding the cathode and the protrusion covered with the coat. In all sections of the protrusion taken in parallel with the first direction, a corner portion of the protrusion covered with the coat is covered with the bonding layer.

    STACK PROTECTION METHOD IN CASE OF EMERGENCY SHUT DOWN OR BLACK OUT IN SOLID OXIDE FUEL CELL SYSTEM
    75.
    发明申请
    STACK PROTECTION METHOD IN CASE OF EMERGENCY SHUT DOWN OR BLACK OUT IN SOLID OXIDE FUEL CELL SYSTEM 审中-公开
    紧急情况下的堆放保护方法关闭或黑色固体氧化物燃料电池系统

    公开(公告)号:US20170018790A1

    公开(公告)日:2017-01-19

    申请号:US15121028

    申请日:2015-02-26

    摘要: The present invention relates to a stack protection method in case of emergency shut down or black out in a solid oxide fuel cell system and, more particularly, to a system and a method for, if supply of fuel gas and water to an anode channel of a stack is discontinued due to emergency shut down or black out, etc. in a solid oxide fuel cell system, preventing an anode from being contaminated by oxygen in the air and preventing re-oxidation of an anode material from occurring and cracks from forming on the stack due to the contamination. A fuel cell according to the present invention is disposed in a hot box along with a fuel cell stack, and has an auxiliary vaporizer which vaporizes and supplies, to a stack anode, water supplied from a water reservoir tank by a water level difference.

    摘要翻译: 本发明涉及一种在固体氧化物燃料电池系统中紧急关闭或熄灭的情况下的堆叠保护方法,更具体地,涉及一种系统和方法,用于如果向阳极通道供应燃料气体和水, 由于在固体氧化物燃料电池系统中的紧急关闭或熄灭等而中断堆叠,防止阳极被空气中的氧气污染并防止阳极材料的再氧化发生和形成的裂纹 堆叠由于污染。 根据本发明的燃料电池与燃料电池堆一起设置在热箱中,并且具有辅助蒸发器,其向堆叠阳极蒸发并且将从储水箱供应的水供给水位差。

    ELECTROCHEMICAL REACTION UNIT AND FUEL CELL STACK
    76.
    发明申请
    ELECTROCHEMICAL REACTION UNIT AND FUEL CELL STACK 有权
    电化学反应单元和燃料电池堆

    公开(公告)号:US20160372758A1

    公开(公告)日:2016-12-22

    申请号:US15184359

    申请日:2016-06-16

    摘要: An electrochemical reaction unit which includes a unit cell including an electrolyte layer, a cathode, and an anode facing each other in a first direction; a current collector disposed on a cathode side of the unit cell; and an electrically conductive porous bonding layer. A bonding region contains a block portion and an electrical conductivity securing portion. The block portion has a pore having a diameter that is 20% or more than the thickness of the bonding region in the first direction. The block portion extends inward from one of opposite ends in a second direction orthogonal to the first direction of the bonding region, and reaches and contains the pore satisfying the pore requirement. The electrical conductivity securing portion is located toward the other end of the bonding region and has a smaller average diameter of pores than the block portion.

    摘要翻译: 一种电化学反应单元,其包括在第一方向上包括电解质层,阴极和阳极的单元电池; 设置在所述单电池的阴极侧的集电体; 和导电性多孔粘合层。 接合区域包含块部分和导电性固定部分。 嵌段部具有直径为第一方向上的接合区域的厚度的20%以上的孔。 块部从与接合区域的第一方向正交的第二方向的相对端部之一向内延伸,并且到达并包含满足孔隙要求的孔。 导电性固定部分位于接合区域的另一端,并且具有比块部分更小的平均孔直径。

    High temperature fuel cell and high temperature fuel cell stack
    79.
    发明授权
    High temperature fuel cell and high temperature fuel cell stack 失效
    高温燃料电池和高温燃料电池堆

    公开(公告)号:US6156448A

    公开(公告)日:2000-12-05

    申请号:US133002

    申请日:1998-08-12

    申请人: Horst Greiner

    发明人: Horst Greiner

    摘要: A high temperature fuel cell stack is composed of high temperature fuel cells having interconnecting conducting plates for leading off current produced in the high temperature fuel cell. At least one of the plates is formed of an alloy based on Fe with a Cr content of between 17 and 30% by weight and has an average coefficient of thermal expansion of between 13 and 14.times.10.sup.-6 /K in a temperature range from room temperature to 900.degree. C. Two electrodes are disposed between the plates and supplied with a working medium by the plates. One of the electrodes has a thickness of at least 100 .mu.m and the other a thickness of about 30 .mu.m. An electrolyte is disposed between the two electrodes, contains stabilized ZrO.sub.2 and has a thickness of between 5 and 30 .mu.m. The electrodes and the electrolyte have a coefficient of thermal expansion matched to that of the at least one plate. The material costs for the plates are reduced by a factor of 10 to 20 in comparison with prior art plates.

    摘要翻译: 高温燃料电池堆由具有用于在高温燃料电池中产生的引导电流的互连导电板的高温燃料电池组成。 至少一个板由基于Fe的合金制成,Cr含量为17至30重量%,并且在室温下的温度范围内的平均热膨胀系数为13至14×10 -6 / K 到900℃。两个电极设置在板之间并由板供给工作介质。 电极中的一个具有至少100μm的厚度,另一个的厚度为约30μm。 电解质设置在两个电极之间,包含稳定的ZrO 2并且具有5至30μm的厚度。 电极和电解质具有与至少一个板的热膨胀系数相匹配的热膨胀系数。 与现有技术的板相比,板的材料成本降低了10至20倍。

    Fuel cell battery and solid electrolyte fuel cells therefore
    80.
    发明授权
    Fuel cell battery and solid electrolyte fuel cells therefore 失效
    因此燃料电池和固体电解质燃料电池

    公开(公告)号:US5328779A

    公开(公告)日:1994-07-12

    申请号:US927427

    申请日:1992-08-03

    CPC分类号: H01M8/2425 H01M8/1231

    摘要: Avoiding the use of porous ceramic bearing structures, the proposal is for a 3-layer electrolyte fuel cell element, one electrode (1) of which is at the same time the bearer plate for the active cell element (12, 2, 3), is integrated via component (4) into the frame structure for a cell battery made up of individual elements, and in which the mechanical closing force between the frame structure and the active cell element is released with the aid of a spring-loaded region (11), in order not to expose the thin electrolyte layer (2) to thermally induced mechanical stresses. The active cell element, a combination of two porous and metallic electrodes (1, 3) with a gastight oxide electrolyte layer (2), are preferably produced by the vacuum plasma spray process.

    摘要翻译: PCT No.PCT / EP90 / 02175第 371日期:1992年8月3日 102(e)日期1992年8月3日PCT 1990年12月13日PCT PCT。 出版物WO91 / 日期为1991年8月8日。为避免使用多孔陶瓷轴承结构,提出了一种三层电解质燃料电池元件,其中一个电极(1)同时是活性电池元件的载体板( 12,2,3)通过组件(4)集成到由单个元件构成的电池的框架结构中,并且其中借助于框架结构和有源电池元件之间的机械闭合力被释放 弹簧加载区域(11),以便不使薄电解质层(2)暴露于热致机械应力。 优选通过真空等离子体喷涂方法制造具有气密性氧化物电解质层(2)的两个多孔金属电极和金属电极(1,3)的组合的活性电池元件。