Fuel cell system having valve module between fuel cell stack and humidifier

    公开(公告)号:US10069157B2

    公开(公告)日:2018-09-04

    申请号:US14954471

    申请日:2015-11-30

    Abstract: A fuel cell system includes an air supply unit for supplying air containing oxygen to a fuel cell stack. A humidifier humidifies the supplied air. An air supply line is connected between a cathode inlet of the fuel cell stack and the humidifier to supply the humidified air to the fuel cell stack. A cathode-side exhaust line is connected between a cathode outlet of the fuel cell stack and the humidifier to supply a cathode exhaust gas discharged from a cathode of the fuel cell stack to the humidifier for humidification in the humidifier. A unified valve module includes a bypass line connected between the air supply line and the cathode-side exhaust line and an outward discharge port discharging the cathode exhaust gas to outside, and controls a gas flow between the humidifier and the fuel cell stack and between the bypass line and the outward discharge port.

    POROUS MEDIUM WITH INCREASED HYDROPHOBICITY AND METHOD OF MANUFACTURING THE SAME
    16.
    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

    Abstract: 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.

    Abstract translation: 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。

    DIAGNOSTIC SYSTEM AND METHOD FOR FUEL CELL STACK
    18.
    发明申请
    DIAGNOSTIC SYSTEM AND METHOD FOR FUEL CELL STACK 有权
    燃料电池堆的诊断系统和方法

    公开(公告)号:US20140184264A1

    公开(公告)日:2014-07-03

    申请号:US14134311

    申请日:2013-12-19

    Abstract: A diagnostic system and method for a fuel cell stack that diagnoses the state and/or failure of the fuel cell stack. More specifically, the diagnostic control analyzer diagnoses and analyzes the state of the fuel cell stack by measuring the voltage and the current received from the fuel cell stack. To do this, an AC signal generator cogenerates a diagnostic AC signal according to the control upon receiving a control command form the analyzer, and an AC component driving element is then driven upon receiving the AC signal that is output from the AC signal generator in order to include a diagnostic AC component within the current of the fuel cell stack. In particular, the diagnostic control analyzer diagnoses the fuel cell stack based on a voltage and a current received from the fuel cell stack that includes the AC component via a load.

    Abstract translation: 一种用于诊断燃料电池堆的状态和/或故障的燃料电池堆的诊断系统和方法。 更具体地,诊断控制分析器通过测量从燃料电池堆接收的电压和电流来诊断和分析燃料电池堆的状态。 为此,AC信号发生器在从分析器接收到控制命令时根据控制器共同生成诊断AC信号,然后在接收到从AC信号发生器输出的AC信号时依次驱动AC分量驱动元件 以在燃料电池堆的电流内包括诊断AC分量。 特别地,诊断控制分析器基于经由负载从包括AC分量的燃料电池堆接收的电压和电流来诊断燃料电池堆。

    HYDROGEN SUPPLY SYSTEM FOR FUEL CELL WITH INTEGRATED MANIFOLD BLOCK
    20.
    发明申请
    HYDROGEN SUPPLY SYSTEM FOR FUEL CELL WITH INTEGRATED MANIFOLD BLOCK 审中-公开
    具有集成管状块的燃料电池的氢供应系统

    公开(公告)号:US20130295482A1

    公开(公告)日:2013-11-07

    申请号:US13652783

    申请日:2012-10-16

    Abstract: Disclosed is a hydrogen supply system for a fuel cell, which has an integrated manifold block in which components for hydrogen supply are integrated and modulated. In particular, a hydrogen supply line, a hydrogen discharge line, and a hydrogen recirculation line are formed in a manifold block mounted on the outside of a plurality of stack modules of a fuel cell stack. Additionally, components of the hydrogen supply system including components for supplying and discharging hydrogen and components for recirculating hydrogen are integrally mounted in predetermined positions of the hydrogen supply line, the hydrogen discharge line, and the hydrogen recirculation line to modularize the manifold block and the components of the hydrogen supply system.

    Abstract translation: 公开了一种用于燃料电池的氢气供应系统,其具有集成的集成块,其中用于氢气供应的部件被集成和调制。 特别地,在安装在燃料电池堆的多个堆叠模块的外部的歧管块中形成氢气供应管线,氢气排放管线和氢气再循环管线。 另外,包括用于供应和排出氢气的部件和用于再循环氢的部件的氢气供应系统的部件一体地安装在氢气供应管线,氢气排放管线和氢气再循环管线的预定位置,以模块化歧管块和部件 的氢气供应系统。

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