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1. 发明申请

WO2004093231A2 PASSIVE WATER MANAGEMENT TECHNIQUES IN DIRECT METHANOL FUEL CELLS 审中-公开
标题翻译：直接甲醇燃料电池中的被动水处理技术
公开(公告)号：WO2004093231A2
公开(公告)日：2004-10-28
申请号：PCT/US2004/011406
申请日：2004-04-14
申请人： MTI MICROFUEL CELLS INC.
发明人： REN, Xiaoming , KOVACS, Frank, W. , SHUFON, Kevin, J. , GOTTESFELD, Shimshon
IPC分类号： H01M8/04
CPC分类号： H01M8/04186 , H01M8/04171 , H01M8/04291 , H01M8/1011 , H01M8/2475 , Y02E60/523
摘要： Passive water management techniques are provided in an air-breathing direct oxidation fuel cell system. A highly hydrophobic component with sub-micrometer wide pores is laminated to the catalyzed membrane electrolyte on the cathode side. This component blocks liquid water from traveling out of the cathode and instead causes the water to be driven through the polymer membrane electrolyte to the cell anode. The air-breathing direct oxidation fuel cell also includes a layer of cathode backing and additional cathode filter components on an exterior aspect of the cell cathode which lessen the water vapor escape rate from the cell cathode. The combination of the well laminated hydrophobic microporous layer, the thicker backing and the added filter layer, together defines a cathode structure of unique water management capacity, that enables to operate a DMFC with direct, controlled rate supply of neat (100 %) methanol, without the need for any external supply or pumping of water. The cell anode is provided with a hydrophilic backing layer. When the water is driven through the polymer membrane electrolyte from the cell cathode to the cell anode chamber, it is available for the anodic reaction, and any excess water is carried out along CO 2 ventilation channels to the outside environment.
摘要翻译：被动水管理技术在空气呼吸直接氧化燃料电池系统中提供。将具有亚微米宽孔的高疏水性组分层压到阴极侧的催化膜电解质上。该组分阻止液体水从阴极流出，而是使水通过聚合物膜电解质驱动到电池阳极。空气呼吸直接氧化燃料电池还包括在电池阴极的外部方面的阴极背衬和附加的阴极过滤器部件的层，其降低了来自电池阴极的水蒸气逸出速率。良好层压的疏水性微孔层，较厚的背衬和添加的过滤层的组合共同限定了独特的水管理能力的阴极结构，能够以直（100％）的甲醇直接控制速率供应来操作DMFC，而不需要任何外部供应或抽水。电池阳极设置有亲水背衬层。当水通过聚合物膜电解质从电池阴极驱动到电池阳极室时，它可用于阳极反应，并且任何多余的水都沿着CO 2通风通道进入外部环境。

2. 发明申请

WO2002071520A1 COLD START AND TEMPERATURE CONTROL METHOD AND APPARATUS FOR FUEL CELL SYSTEM 审中-公开
标题翻译：用于燃料电池系统的冷起动和温度控制方法和设备
公开(公告)号：WO2002071520A1
公开(公告)日：2002-09-12
申请号：PCT/US2002/004161
申请日：2002-02-13
申请人： MTI MICROFUEL CELLS, INC.
发明人： ACKER, William, P. , GOTTESFELD, Shimshon , DAILEY, William, W.
IPC分类号： H01M8/00
CPC分类号： H01M8/04007 , H01M8/04022 , H01M8/04097 , H01M8/04164 , H01M8/04186 , H01M8/04268 , H01M8/04365 , H01M8/04559 , H01M8/04589 , H01M8/04753 , H01M8/0668 , H01M8/1009
摘要： A fuel cell (100) which provides improved performance during a cold start. Several embodiments are provided to enable the controlled introduction of fuel into the cathode (202) of the fuel cell (100) such that oxidation occurs, heat is released and the temperature of the fuel cell (100) is raised. Such fuel may be introduced into the cathode (202) directly or may be introduced into the anode (204) and allowed to crossover an electrolytic membrane. Alternatively, the fuel may be directed through a special conduit (205) which allows oxidation of some of the fuel as it flows through.
摘要翻译：在冷启动期间提供改善的性能的燃料电池（100）。提供若干实施例以实现将燃料受控地引入到燃料电池（100）的阴极（202）中，使得发生氧化，热量被释放并且燃料电池（100）的温度升高。这种燃料可以直接引入到阴极（202）中或者可以引入到阳极（204）中并且允许交叉电解质膜。或者，可以将燃料引导通过特定的导管（205），其允许一些燃料在其流过时被氧化。

3. 发明申请

WO2004032258A2 FLUID MANAGEMENT COMPONENT FOR USE IN A FUEL CELL 审中-公开
标题翻译：用于燃料电池的流体管理组件
公开(公告)号：WO2004032258A2
公开(公告)日：2004-04-15
申请号：PCT/US2003/028306
申请日：2003-09-09
申请人： MTI MICROFUEL CELLS INC.
发明人： REN, Xiaoming , GOTTESFELD, Shimshon , BECERRA, Juan, J. , HIRSCH, Robert, S.
IPC分类号： H01M
CPC分类号： H01M8/1011 , H01M8/0239 , H01M8/04186 , Y02E60/523
摘要： A passive fluid management component for a direct oxidation fuel cell is provided. It enables the introduction of highly concentrated methanol solutions, including neat methanol, directly into the anode, eliminating the need of mechanical modes of dosing and/or mixing a methanol/water solution to control the local concentration at the anode. The fluid management of the present invention can be based on pores formed in the component of a specific size and spacing to allow anode reactants to flow through the component towards the anode face of the membrane electrolyte of the fuel cell at a controlled rate. The pore size can be adjusted to allow the highest concentrations possible of methanol, including neat methanol, to be introduced in direct contact with the outer face of the component, said component being capable of lowering, under current, the local concentration of methanol at the anode face of the membrane electrolyte to the level required to minimize methanol loss. The pore walls can be made to be hydrophilic to facilitate the flow of water or methanol based fluids. The component of the present invention may also include channels formed therein which will direct the flow of carbon dioxide away from the anode of the fuel cell and to a venting or collection site. The fluid management component of the present invention can also be used to replace the conventional anode diffusion layer in an embodiment in which the component is of a conductive material. It is used in addition to an anode diffusion layer in an embodiment in which the component could be a non-conductive material, or where better surface contact to the anode face of the membrane is enabled by a conventional diffusion layer.
摘要翻译：提供了一种用于直接氧化燃料电池的被动流体管理部件。它能够将高浓度甲醇溶液（包括纯甲醇）直接引入阳极，无需使用机械模式进行配制和/或混合甲醇/水溶液来控制阳极处的局部浓度。本发明的流体管理可以基于在特定尺寸和间隔的部件中形成的孔，以允许阳极反应物以受控的速率流过燃料电池的膜电解质的阳极面。可以调节孔径以允许甲醇（包括纯甲醇）的最高浓度被引入与组分的外表面直接接触，所述组分能够在电流下降低甲醇的局部浓度膜电解质的阳极面达到使甲醇损失最小化所需的水平。孔壁可以被制成亲水的，以促进基于水或甲醇的流体的流动。本发明的组件还可以包括在其中形成的通道，其中将引导二氧化碳流从燃料电池的阳极到通风或收集位置。在组件为导电材料的实施例中，本发明的流体管理组件也可用于替代传统的阳极扩散层。在其中组分可以是非导电材料的实施例中，或者通过常规扩散层使得与膜的阳极面更好的表面接触能够实现的实施例中除了阳极扩散层之外还使用阳极扩散层。

4. 发明申请

WO2006071680A3 CONTROLLED DIRECT LIQUID INJECTION VAPOR FEED FOR A DMFC 审中-公开
公开(公告)号：WO2006071680A3
公开(公告)日：2006-07-06
申请号：PCT/US2005/046380
申请日：2005-12-21
申请人： MTI MICROFUEL CELLS INC. , REN, Xiaoming , BECERRA, Juan, J. , HIRSCH, Robert, S. , GOTTESFELD, Shimshon , KOVACS, Frank, W. , SHUFON, Kevin, J.
发明人： REN, Xiaoming , BECERRA, Juan, J. , HIRSCH, Robert, S. , GOTTESFELD, Shimshon , KOVACS, Frank, W. , SHUFON, Kevin, J.
IPC分类号： H01M8/04 , H01M8/10
摘要： A fuel cell system having a methanol vapor delivery component or film is provided. The component includes an evaporation pad. The evaporation pad is disposed within the fuel cell generally parallel to the anode diffusion layer, but with a vapor gap provided between the evaporation pad and the anode diffusion layer. A fuel delivery conduit having at least one injection port is provided through which liquid fuel is delivered from an associated source of highly concentrated fuel into the evaporation pad, at a controlled, adjustable rate. Multiple parallel liquid delivery points can also be provided. In order to ensure uniform delivery of fuel across the across the active area of the anode, one or more dispersion members are placed on the evaporation pad to effectively disperse the fuel laterally around each injection port.

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