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    FUEL CELL WITH ENHANCED MASS TRANSFER CHARACTERISTICS
    2.
    发明申请
    FUEL CELL WITH ENHANCED MASS TRANSFER CHARACTERISTICS 审中-公开
    燃料电池具有增强的传质特性

    公开(公告)号：US20150111127A1

    公开(公告)日：2015-04-23

    申请号：US14581473

    申请日：2014-12-23

    申请人： HYUNDAI MOTOR COMPANY ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    发明人： Bo Ki Hong ,  Sae Hoon Kim ,  Kook Il Han ,  Kwang Ryeol Lee ,  Myoung Woon Moon

    IPC分类号： H01M8/10

    CPC分类号： H01M8/1007 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/8817 ,  H01M4/8821 ,  H01M4/886 ,  H01M8/1004 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/521 ,  Y10S977/778 ,  Y10S977/89

    摘要： Disclosed is a fuel cell with enhanced mass transfer characteristics in which a highly hydrophobic porous medium, which is prepared by forming a micro-nano dual structure in which nanometer-scale protrusions with a high aspect ratio are formed on the surface of a porous medium with a micrometer-scale roughness by plasma etching and then by depositing a hydrophobic thin film thereon, is used as a gas diffusion layer, thereby increasing hydrophobicity due to the micro-nano dual structure and the hydrophobic thin film. When this highly hydrophobic porous medium is used as a gas diffusion layer for a fuel cell, it is possible to reduce water flooding by efficiently discharging water produced by an electrochemical reaction of the fuel cell and to improve the performance of the fuel cell by facilitating the supply of reactant gases such as hydrogen and air (oxygen) to a membrane-electrode assembly (MEA).

    摘要翻译： 公开了具有增强的传质特性的燃料电池，其中通过形成微纳米双重结构制备的高度疏水的多孔介质，其中在多孔介质的表面上形成具有高纵横比的纳米级突起， 通过等离子体蚀刻，然后在其上沉积疏水性薄膜的微米级粗糙度被用作气体扩散层，从而由于微纳米双结构和疏水性薄膜而增加疏水性。 当这种高度疏水性的多孔介质用作燃料电池的气体扩散层时，可以通过有效地排放由燃料电池的电化学反应产生的水来减少水驱，并且通过促进燃料电池的性能来提高燃料电池的性能 向膜 - 电极组件（MEA）供应诸如氢气和空气（氧气）的反应气体。

    POROUS MEDIUM WITH INCREASED HYDROPHOBICITY AND METHOD OF MANUFACTURING THE SAME
    4.
    发明申请
    POROUS MEDIUM WITH INCREASED HYDROPHOBICITY AND METHOD OF MANUFACTURING THE SAME 审中-公开
    具有增加的疏水性的多孔介质及其制造方法

    公开(公告)号：US20150162623A1

    公开(公告)日：2015-06-11

    申请号：US14581276

    申请日：2014-12-23

    申请人： Hyundai Motor Company ,  Korea Institute of Science and Technology

    发明人： Bo Ki Hong ,  Sae Hoon Kim ,  Kwang Ryeol Lee ,  Myoung Woon Moon

    IPC分类号： H01M8/02

    CPC分类号： H01M8/0234 ,  B32B2307/73 ,  B82Y40/00 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/0245 ,  H01M8/04156 ,  H01M2008/1095 ,  Y02E60/50 ,  Y02P70/56 ,  Y10S977/778 ,  Y10S977/89 ,  Y10T428/24372

    摘要： The present invention provides a porous medium with increased hydrophobicity and a method of manufacturing the same, in which a micro-nano dual structure is provided by forming nanoprotrusions with a high aspect ratio by performing plasma etching on the surface of a porous medium with a micrometer-scale surface roughness and a hydrophobic thin film is deposited on the surface of the micro-nano dual structure, thus significantly increasing hydrophobicity. When this highly hydrophobic porous medium is used as a gas diffusion layer of a fuel cell, it is possible to efficiently discharge water produced during electrochemical reaction of the fuel cell, thus preventing flooding in the fuel cell. Moreover, it is possible to sufficiently supply reactant gases such as hydrogen and air (oxygen) to a membrane electrode assembly (MEA), thus improving the performance of the fuel cell.

    摘要翻译： 本发明提供了一种具有增加的疏水性的多孔介质及其制造方法，其中通过在多孔介质的表面上进行等离子体蚀刻来形成具有高纵横比的纳米突起，提供微纳米双重结构 尺寸表面粗糙度和疏水性薄膜沉积在微纳米双结构的表面上，从而显着增加疏水性。 当这种高度疏水性的多孔介质用作燃料电池的气体扩散层时，可以有效地排出在燃料电池的电化学反应期间产生的水，从而防止燃料电池中的淹水。 此外，可以向膜电极组件（MEA）充分供应氢气和空气（氧气）等反应气体，从而提高燃料电池的性能。