METHOD OF FABRICATING A POLYMER ELECTROLYTE MEMBRANE (PEM)
    4.
    发明申请
    METHOD OF FABRICATING A POLYMER ELECTROLYTE MEMBRANE (PEM) 审中-公开
    聚合物电解质膜(PEM)的制备方法

    公开(公告)号:US20120214086A1

    公开(公告)日:2012-08-23

    申请号:US13453815

    申请日:2012-04-23

    IPC分类号: H01M8/10

    摘要: A proton (H+)-conducting hydrocarbon (HC)-based polymer electrolyte membrane (PEM) having first and second oppositely facing surfaces comprises a HC-based membrane with at least one perfluoropolymer incorporated on or within at least the first and second surfaces. A method for fabricating the PEM comprises surface treating a HC-based polymeric membrane sheet via immersion in an aqueous solution or dispersion of said at least one perfluoropolymer, followed by drying of the surface treated polymeric membrane sheet.

    摘要翻译: 具有第一和第二相对面的基于质子(H +)导电烃(HC)的聚合物电解质膜(PEM)包括至少一个全氟聚合物的至少一个全氟聚合物的至少第一和第二表面上的HC-基膜。 制造PEM的方法包括通过浸入所述至少一种全氟聚合物的水溶液或分散体中,然后干燥表面处理的聚合物膜片来对HC基聚合物膜片进行表面处理。

    High electrical performance direct oxidation fuel cells & systems
    6.
    发明授权
    High electrical performance direct oxidation fuel cells & systems 有权
    高电性能直接氧化燃料电池和系统

    公开(公告)号:US07781114B2

    公开(公告)日:2010-08-24

    申请号:US11242944

    申请日:2005-10-05

    IPC分类号: H01M2/00 H01M8/04

    摘要: A direct oxidation fuel cell (DOFC) system, comprises at least one fuel cell assembly including a cathode and an anode with an electrolyte positioned therebetween, adapted for performing selected electrochemical reactions; a source of concentrated liquid fuel in fluid communication with an inlet of the anode; an oxidant supply in fluid communication with an inlet of the cathode; a liquid/gas (L/G) separator in fluid communication with outputs of the anode and cathode for receiving unreacted fuel and liquid and gaseous products of the electrochemical reactions; and a converter for catalytically converting a portion of the unreacted fuel to the liquid and gaseous products.

    摘要翻译: 直接氧化燃料电池(DOFC)系统包括至少一个燃料电池组件,其包括阴极和阳极,电解质位于它们之间,适于进行选择的电化学反应; 与阳极入口流体连通的浓缩液体燃料源; 与阴极入口流体连通的氧化剂供应源; 液体/气体(L / G)分离器,与阳极和阴极的输出端流体连通,用于接收未反应的燃料和电化学反应的液体和气体产物; 以及用于将未反应燃料的一部分催化转化为液体和气态产物的转化器。

    DIRECT OXIDATION FUEL CELLS WITH IMPROVED CATHODE GAS DIFFUSION MEDIA FOR LOW AIR STOICHIOMETRY OPERATION
    7.
    发明申请
    DIRECT OXIDATION FUEL CELLS WITH IMPROVED CATHODE GAS DIFFUSION MEDIA FOR LOW AIR STOICHIOMETRY OPERATION 审中-公开
    直接氧化燃料电池,具有改进的CATHODE气体扩散介质,用于低空气体运行

    公开(公告)号:US20120231375A1

    公开(公告)日:2012-09-13

    申请号:US13480114

    申请日:2012-05-24

    IPC分类号: H01M4/86 B82Y30/00

    摘要: A cathode for use in a direct oxidation fuel cell (DOFC) comprises a gas diffusion medium (GDM) including a backing layer and a microporous layer comprising a fluoropolymer and an electrically conductive material, wherein loading of the fluoropolymer in the microporous layer is in the range from about 10 to about 60 wt. %. In use, a concentrated solution of a liquid fuel is supplied to an anode and an oxidant to the cathode of the fuel cell, and the fuel cell may be operated at a low oxidant stoichiometry ξc not greater than about 2.5.

    摘要翻译: 用于直接氧化燃料电池(DOFC)的阴极包括气体扩散介质(GDM),其包括背衬层和包含含氟聚合物和导电材料的微孔层,其中含氟聚合物在微孔层中的加载在 范围为约10至约60wt。 %。 在使用中,将液体燃料的浓缩溶液供应到燃料电池的阴极的阳极和氧化剂,并且燃料电池可以以不大于约2.5的低氧化物化学计量运行。

    Dynamically controllable direct oxidation fuel cell systems and methods therefor
    8.
    发明授权
    Dynamically controllable direct oxidation fuel cell systems and methods therefor 失效
    动态可控直接氧化燃料电池系统及其方法

    公开(公告)号:US08097370B2

    公开(公告)日:2012-01-17

    申请号:US12837985

    申请日:2010-07-16

    IPC分类号: H01M8/00 H01M8/04

    摘要: A direct oxidation fuel cell (DOFC) system comprises at least one fuel cell assembly including a cathode and an anode with an electrolyte positioned therebetween; a source of liquid fuel in fluid communication with an anode inlet; an oxidant supply in fluid communication with a cathode inlet; a liquid/gas (L/G) separator in fluid communication with anode and cathode outlets for: (1) receiving unreacted fuel and liquid and gaseous products of electrochemical reactions at the cathode and anode, and (2) supplying the unreacted fuel and liquid product to the inlet of said anode; and a control and/or regulation system for determining a fuel efficiency value of the DOFC system during operation and determining and regulating and/or controlling oxidant stoichiometry of the DOFC system at an appropriate value in response to the determined fuel efficiency value.

    摘要翻译: 直接氧化燃料电池(DOFC)系统包括至少一个燃料电池组件,其包括阴极和阳极,电解质位于它们之间; 与阳极入口流体连通的液体燃料源; 与阴极入口流体连通的氧化剂供应源; 与阳极和阴极出口流体连通的液体/气体(L / G)分离器,用于:(1)在阴极和阳极处接收未反应的燃料和电化学反应的液体和气体产物,以及(2)供应未反应的燃料和液体 产品到所述阳极的入口; 以及用于在操作期间确定DOFC系统的燃料效率值的控制和/或调节系统,并响应于所确定的燃料效率值,以适当的值确定和/或控制DOFC系统的氧化剂化学计量。

    DIRECT OXIDATION FUEL CELLS WITH IMPROVED CATHODE GAS DIFFUSION MEDIA FOR LOW AIR STOICHIOMETRY OPERATION
    9.
    发明申请
    DIRECT OXIDATION FUEL CELLS WITH IMPROVED CATHODE GAS DIFFUSION MEDIA FOR LOW AIR STOICHIOMETRY OPERATION 失效
    直接氧化燃料电池,具有改进的CATHODE气体扩散介质,用于低空气体运行

    公开(公告)号:US20100183951A1

    公开(公告)日:2010-07-22

    申请号:US12722081

    申请日:2010-03-11

    IPC分类号: H01M8/04

    摘要: A cathode for use in a direct oxidation fuel cell (DOFC) comprises a gas diffusion medium (GDM) including a backing layer and a microporous layer comprising a fluoropolymer and an electrically conductive material, wherein loading of the fluoropolymer in the microporous layer is in the range from about 10 to about 60 wt. %. In use, a concentrated solution of a liquid fuel is supplied to an anode and an oxidant to the cathode of the fuel cell, and the fuel cell may be operated at a low oxidant stoichiometry not greater than about 2.5.

    摘要翻译: 用于直接氧化燃料电池(DOFC)的阴极包括气体扩散介质(GDM),其包括背衬层和包含含氟聚合物和导电材料的微孔层,其中含氟聚合物在微孔层中的加载在 范围为约10至约60wt。 %。 在使用中,将液体燃料的浓缩溶液供给到燃料电池的阴极的阳极和氧化剂,并且燃料电池可以以不大于约2.5的低氧化物化学计量运行。

    Low porosity anode diffusion media for fuel cells
    10.
    发明申请
    Low porosity anode diffusion media for fuel cells 审中-公开
    用于燃料电池的低孔隙率阳极扩散介质

    公开(公告)号:US20090208783A1

    公开(公告)日:2009-08-20

    申请号:US12071155

    申请日:2008-02-15

    IPC分类号: H01M8/02

    摘要: A direct oxidation fuel cell (DOFC) having a concentrated liquid fuel and an anode electrode configured to generate power. The anode electrode includes a diffusion medium (DM) with or without a microporous layer, such that a decrease in the porosity of the DM reduces fuel crossover through the membrane and achieves high power density of the DOFC fed directly with concentrated fuel.

    摘要翻译: 具有浓缩液体燃料的直接氧化燃料电池(DOFC)和被配置为产生电力的阳极电极。 阳极电极包括具有或不具有微孔层的扩散介质(DM),使得DM的孔隙率的降低减少了通过膜的燃料交叉,并且实现了直接用浓缩燃料进料的DOFC的高功率密度。