Screen printing fuel cell electrolyte matrices
    2.
    发明授权
    Screen printing fuel cell electrolyte matrices 失效
    丝网印刷燃料电池电解质基质

    公开(公告)号:US4000006A

    公开(公告)日:1976-12-28

    申请号:US609866

    申请日:1975-09-02

    IPC分类号: H01M2/14 H01M8/02 H01M8/00

    CPC分类号: H01M2/14 H01M8/0293

    摘要: A matrix for retaining the electrolyte in a fuel cell is applied to the surface of one or both of the electrodes by screen printing. In a preferred embodiment an aqueous solution of glycol is used as the inking vehicle to screen print a very thin, continuous and uniform matrix layer on the surface of an electrode.

    摘要翻译: 用于将电解质保持在燃料电池中的基质通过丝网印刷施加到一个或两个电极的表面。 在优选的实施方案中,使用二醇的水溶液作为着色载体以在电极表面上丝网印刷非常薄的,连续的和均匀的基质层。

    Cooling system for a burst power fuel cell
    3.
    发明授权
    Cooling system for a burst power fuel cell 失效
    爆破式燃料电池的冷却系统

    公开(公告)号:US4782669A

    公开(公告)日:1988-11-08

    申请号:US931592

    申请日:1986-11-17

    IPC分类号: H01M8/04 F25D17/02

    摘要: Spaced based burst power fuel cells generate large thermal loads in very short time periods. In order to avoid external venting or the use of heavy radiators in space vehicles, such fuel cells must include onboard closed-loop cooling systems. Utilizing subcooled ice as a cooling medium, contactable with either the anode, cathode or coolant recirculating stream provides the fuel cell with a safe, highly efficient and low weight heat absorption capability.

    摘要翻译: 基于间歇的突发动力燃料电池在非常短的时间内产生大的热负荷。 为了避免外部排放或在太空车辆中使用重型散热器,这种燃料电池必须包括板载闭环冷却系统。 利用过冷冰作为冷却介质,可与阳极,阴极或冷却剂再循环流接触,为燃料电池提供安全,高效和低重量的吸热能力。

    Multiple heat sink cooling system for a burst power fuel cell
    4.
    发明授权
    Multiple heat sink cooling system for a burst power fuel cell 失效
    用于突发式燃料电池的多个散热器冷却系统

    公开(公告)号:US4760713A

    公开(公告)日:1988-08-02

    申请号:US931593

    申请日:1986-11-17

    摘要: Spaced based burst power fuel cells generate large thermal loads in very short time periods. In order to avoid external venting or the use of heavy radiators in space vehicles, such fuel cells must include onboard closed-loop cooling systems. Utilizing multiple heat sinks containing subcooled ice as a cooling medium, sequentially contactable with a coolant that passes through the fuel cell, provides a safe, highly efficient and low weight heat absorption capability.

    摘要翻译: 基于间歇的突发动力燃料电池在非常短的时间内产生大的热负荷。 为了避免外部排放或在太空车辆中使用重型散热器,这种燃料电池必须包括板载闭环冷却系统。 使用含有过冷冰的多个散热器作为冷却介质,其顺序地与通过燃料电池的冷却剂接触,提供安全,高效和低重量的吸热能力。

    Seal structure for an electrochemical cell
    5.
    发明授权
    Seal structure for an electrochemical cell 失效
    电化学电池的密封结构

    公开(公告)号:US4756981A

    公开(公告)日:1988-07-12

    申请号:US947168

    申请日:1986-12-29

    IPC分类号: H01M8/02 H01M8/24 H01M2/08

    摘要: A seal structure 60 for a porous plate of an electrochemical cell, such as plates 18, 20, includes a sealing material disposed in a seal region 66 of the plate to form a hydrophilic barrier to gas with an electrolyte and a hydrophobic layer 62 to block the loss of electrolyte from the hydrophilic layer is disclosed. Various construction details including a method for making the plate are disclosed which increase the cross pressure the sealing region of the plate can withstand. In one embodiment, the seal region 66 is impregnated with powder having a low structure and predetermined particle size using a pressurized liquid carrier. A FEP Teflon film bonds adjacent electrolyte reservoir plates together.

    Solid electrolyte electrochemical cell
    6.
    发明授权
    Solid electrolyte electrochemical cell 失效
    固体电解质电池

    公开(公告)号:US4248941A

    公开(公告)日:1981-02-03

    申请号:US107191

    申请日:1979-12-26

    摘要: A new type of electrochemical cell which can be used for generating electricity or in an electrolysis mode for producing gases such as hydrogen and oxygen comprises laterally spaced apart or side-by-side catalyst layers as electrodes with the gap between the catalyst layers being bridged by a solid electrolyte which provides an ion conductive path from one catalyst layer to the other. The catalyst layers and the electrolyte are preferably in the form of thin films or layers on the surface of an inert supporting substrate. A plurality of these cells may be disposed on the substrate and interconnected electrically forming a network of series and parallel connected cells. Means are provided to feed fuel and oxidant to the electrodes either as separate gases or mixed together if appropriate catalytic materials are selected.

    摘要翻译: 可用于产生电力或用于产生气体如氢气和氧气的电解模式的新型电化学电池包括横向间隔开的或并排的催化剂层作为电极,催化剂层之间的间隙由 提供从一个催化剂层到另一个催化剂层的离子传导路径的固体电解质。 催化剂层和电解质优选在惰性支撑基材的表面上呈薄膜或多层的形式。 多个这些单元可以设置在基板上并互连成电连接形成串联和并联的单元的网络。 提供了用于将燃料和氧化剂作为单独的气体供给到电极的装置,或者如果选择适当的催化材料则混合在一起。

    Bi-zone water transport plate for a fuel cell
    7.
    发明授权
    Bi-zone water transport plate for a fuel cell 有权
    用于燃料电池的双区水输送板

    公开(公告)号:US06617068B2

    公开(公告)日:2003-09-09

    申请号:US09940198

    申请日:2001-08-27

    IPC分类号: H01M202

    摘要: The invention is a bi-zone water transport plate for a fuel cell wherein the plate includes a water permeability zone and a bubble barrier zone. The bubble barrier zone extends between all reactive perimeters of the plate, has a pore size of less than 20 microns, and has a thickness of less than 25 percent of a shortest distance between opposed contact surfaces of the plate. The water permeability zone has a pore size of at least 100 percent greater than the pore size of the bubble barrier zone, and has a thickness of greater than 75 percent of the shortest distance between the opposed contact surfaces of the plate. By having a separate bubble barrier zone, the plate affords enhanced water permeability while the bubble barrier maintains a gas seal.

    摘要翻译: 本发明是用于燃料电池的双区水输送板,其中板包括透水区和气泡阻挡区。 气泡阻挡区在板的所有反应性周长之间延伸,孔径小于20微米,并且具有小于板的相对接触表面之间最短距离的25%的厚度。 透水性区域的孔径比气泡阻挡区域的孔径大至少100%,并且具有大于板的相对的接触表面之间最短距离的75%的厚度。 通过具有单独的气泡阻挡区,当气泡阻挡层保持气体密封时,板提供增强的透水性。

    Method of and apparatus for removing carbon monoxide from gaseous media
    8.
    发明授权
    Method of and apparatus for removing carbon monoxide from gaseous media 失效
    从气体介质中除去一氧化碳的方法和设备

    公开(公告)号:US6010675A

    公开(公告)日:2000-01-04

    申请号:US853663

    申请日:1992-03-19

    摘要: The concentration of carbon monoxide in a gaseous medium is reduced by selective catalytic oxidation in the presence of gaseous oxygen by passing the gaseous medium through a catalyst capable of oxidizing carbon monoxide in an exothermic reaction at temperatures within a given temperature range and by controlling the temperatures encountered in the catalyst in such a manner that the exothermic reaction takes place first above a threshold temperature below which the catalyst would be rapidly inactivated at the relatively high carbon monoxide concentrations present in the gaseous medium as it enters the catalyst, and subsequently, after the carbon monoxide concentration has been reduced to an acceptable level, at less than the threshold temperature to further reduce the carbon monoxide concentration to a desired minimum level below that achievable at temperatures above the threshold temperature.

    摘要翻译: 气态介质中一氧化碳的浓度通过气态介质存在下的选择性催化氧化而降低,气态介质通过能够在给定温度范围内的温度下在放热反应中氧化一氧化碳的催化剂,并通过控制温度 在催化剂中遇到,使得放热反应首先发生在高于阈值温度的阈值温度以下,在气体介质进入催化剂之前,催化剂将在气态介质中存在的相对较高的一氧化碳浓度下迅速失活,随后,在 一氧化碳浓度已经降低到可接受的水平,低于阈值温度,以进一步将一氧化碳浓度降低到低于在高于阈值温度的温度下可实现的最低水平。

    Method of operating an electrochemical cell stack
    9.
    发明授权
    Method of operating an electrochemical cell stack 失效
    操作电化学电池堆的方法

    公开(公告)号:US4824739A

    公开(公告)日:1989-04-25

    申请号:US115298

    申请日:1987-11-02

    IPC分类号: H01M8/02 H01M8/24

    摘要: A seal structure 60 for a porous plate of an electrochemical cell, such as plates 18, 20, includes a sealing material disposed in a seal region 66 of the plate to form a hydrophilic barrier to gas with an electrolyte and a hydrophobic layer 62 to block the loss of electrolyte from the hydrophilic layer is disclosed. Various construction details including a method for making the plate are disclosed which increase the cross pressure the sealing region of the plate can withstand. In one embodiment, the seal region 66 is impregnated with powder having a low structure and predetermined particle size using a pressurized liquid carrier. A FEP Teflon film bonds adjacent electrolyte reservoir plates together.

    摘要翻译: 用于诸如板18,20的电化学电池的多孔板的密封结构60包括设置在板的密封区域66中的密封材料,以形成与电解质和疏水层62阻挡气体的亲水屏障,以阻挡 公开了来自亲水层的电解质的损失。 公开了包括制造板的方法的各种构造细节,其增加了板的密封区域可承受的交叉压力。 在一个实施例中,密封区域66使用加压液体载体浸渍具有低结构和预定粒度的粉末。 FEP聚四氟乙烯膜将相邻的电解质储存器板粘合在一起。

    Method of fabricating molten carbonate cathodes
    10.
    发明授权
    Method of fabricating molten carbonate cathodes 失效
    制造熔融碳酸盐阴极的方法

    公开(公告)号:US4800052A

    公开(公告)日:1989-01-24

    申请号:US943232

    申请日:1986-12-17

    摘要: Molten carbonate fuel cell cathodes formed from a composition comprising oxides of nickel, lithium salts and barium salts having improved strength. These cathodes are fabricated by prefiring oxides of nickel and optionally lithium salts. The prefired powder is optionally leached with an organic acid and optional barium salts may be added. These powders are formed into an electrode and sintered. The resulting electrodes have improved strength.

    摘要翻译: 由包含具有改进的强度的镍,锂盐和钡盐的氧化物的组合物形成的熔融碳酸盐燃料电池阴极。 这些阴极通过预处理镍和任选的锂盐的氧化物来制造。 预制粉末任选地用有机酸浸出,并且可以加入任选的钡盐。 将这些粉末形成电极并烧结。 所得电极具有改善的强度。