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    Water recovery system and direct liquid feed fuel cell having the same
    81.
    发明申请
    Water recovery system and direct liquid feed fuel cell having the same 有权
    水回收系统和具有该回收系统的直接液体进料燃料电池

    公开(公告)号：US20070087251A1

    公开(公告)日：2007-04-19

    申请号：US11515900

    申请日：2006-09-06

    申请人： Hye-jung Cho ,  Hyuk Chang ,  Kyoung Choi ,  Jae-yong Lee

    发明人： Hye-jung Cho ,  Hyuk Chang ,  Kyoung Choi ,  Jae-yong Lee

    IPC分类号： H01M8/04 ,  H01M8/10

    CPC分类号： H01M8/1011 ,  H01M8/04097 ,  H01M8/04119 ,  H01M8/04141 ,  H01M8/04291 ,  Y02E60/523

    摘要： A water recovery system of a direct liquid feed fuel cell and a direct liquid feed fuel cell having the water recovery system. The water recovery system in which water produced at a cathode electrode of a membrane electrode assembly (MEA) is recovered to supply to an anode electrode, the water recovery system includes: a first member located on the cathode electrode and a first supporting plate that supports the first member; and a second member located on the anode electrode and a second supporting plate that supports the second member, wherein the first member and the second member are connected to each other through a slit formed in an electrolyte membrane of the MEA. The direct liquid feed fuel cell having the water recovery system can be used, for example, in a direct methanol fuel cell (DMFC).

    摘要翻译： 直接液体进料燃料电池的水回收系统和具有水回收系统的直接液体进料燃料电池。 水回收系统，其中回收在膜电极组件（MEA）的阴极处产生的水以供应到阳极电极，所述水回收系统包括：第一构件，位于所述阴极电极上，第一支撑板支撑 第一名成员; 以及位于阳极电极上的第二构件和支撑第二构件的第二支撑板，其中第一构件和第二构件通过形成在MEA的电解质膜中的狭缝相互连接。 具有水回收系统的直接液体进料燃料电池可以用于例如直接甲醇燃料电池（DMFC）中。

    Method of forming catalyst layer for fuel cell
    83.
    发明授权
    Method of forming catalyst layer for fuel cell 有权
    形成燃料电池催化剂层的方法

    公开(公告)号：US06344428B1

    公开(公告)日：2002-02-05

    申请号：US09258802

    申请日：1999-02-26

    申请人： Chan Lim ,  Hyuk Chang

    发明人： Chan Lim ,  Hyuk Chang

    IPC分类号： H01M488

    CPC分类号： H01M4/8828 ,  H01M4/8807 ,  H01M4/8882 ,  H01M4/8896 ,  H01M4/926 ,  H01M8/1004 ,  H01M2300/0082 ,  Y02P70/56

    摘要： A method for preparing a slurry for forming a catalyst layer of a PEM fuel cell electrode and a method for fabricating the PEM fuel cell produced thereby are provided. The method for preparing a slurry for forming a catalyst layer of a proton exchange membrane (PEM) fuel cell according to the present invention comprises the steps of (a) adding an MOH solution to a perfluorosulfonate ionomer (PFSI) solution to convert PFSI in the PFSI solution into an M+ form-PFSI solution, wherein M is an alkaline metal selected from the group consisting of Li, Na and K; (b) adding an organic polar solvent having a higher boiling point than that of alcohol remaining in the PFSI solution to a mixed solution obtained in step (a) and heating the mixture at a temperature range of the boiling point of the alcohol to 20° C. higher than the boiling point to remove the remaining alcohol to obtain a pretreated PFSI solution; and (c) mixing the pretreated PFSI solution with Pt/C to form a slurry for forming a catalyst layer of a PEM fuel cell. Since processing stability is improved and the slurry can be easily prepared, Pt loading greater than a conventional level can be achieved by a single coating step by preventing a Pt catalyst from penetrating into a backing layer, the electrode characteristics are improved. Also, mass production of the PEM fuel cells is possible.

    摘要翻译： 提供了一种制备用于形成PEM燃料电池电极的催化剂层的浆料的方法和由此制备的PEM燃料电池的制造方法。 制备根据本发明的用于形成质子交换膜（PEM）燃料电池的催化剂层的浆料的方法包括以下步骤：（a）将MOH溶液加入到全氟磺酸根离子交联聚合物（PFSI）溶液中，以将PFSI在 PFSI溶液转化成M +形式-PFSI溶液，其中M是选自Li，Na和K的碱金属; （b）将具有比在PFSI溶液中残留的醇的沸点高的沸点的有机极性溶剂加入到步骤（a）中获得的混合溶液中，并将该混合物在醇的沸点范围内加热至20℃ C.高于沸点以除去剩余的醇以获得预处理的PFSI溶液; 和（c）将预处理的PFSI溶液与Pt / C混合以形成用于形成PEM燃料电池的催化剂层的浆料。 由于加工稳定性得到改善并且可以容易地制备浆料，所以可以通过单一的涂覆步骤通过防止Pt催化剂渗透到背衬层中来实现大于常规水平的Pt负载，从而提高电极特性。 此外，PEM燃料电池的批量生产是可能的。

    Catalyst coated electrolyte membrane, fuel cell including the same, method of preparing the catalyst coated electrolyte membrane
    84.
    发明授权
    Catalyst coated electrolyte membrane, fuel cell including the same, method of preparing the catalyst coated electrolyte membrane 有权
    催化剂涂覆的电解质膜，包括其的燃料电池，制备催化剂涂覆的电解质膜的方法

    公开(公告)号：US08343672B2

    公开(公告)日：2013-01-01

    申请号：US11444473

    申请日：2006-06-01

    申请人： Ji-rae Kim ,  Seung-jae Lee ,  Hyuk Chang

    发明人： Ji-rae Kim ,  Seung-jae Lee ,  Hyuk Chang

    IPC分类号： H01M8/06 ,  H01M8/24 ,  H01M8/10

    CPC分类号： H01M8/1009 ,  H01M4/8605 ,  H01M4/881 ,  H01M4/8814 ,  H01M4/8882 ,  H01M4/8892 ,  H01M4/8896 ,  H01M4/921 ,  H01M4/926 ,  H01M8/0239 ,  H01M8/1004 ,  H01M8/1088 ,  Y02P70/56

    摘要： A catalyst coated electrolyte membrane including an anode catalyst layer and a cathode catalyst layer at opposite sides thereof, respectively, wherein micro cracks of the anode catalyst layer or cathode catalyst layer occupy 0.01-1 area % of the total area of the respective anode catalyst layer or cathode catalyst layer, a fuel cell including the same, and a method of preparing the catalyst coated electrolyte membrane. In the catalyst coated electrolyte membrane, micro cracks of the cathode catalyst layer or the anode catalyst layer can be minimized and thus the resistance between the electrode catalyst layer and an electrolyte membrane can be minimized, and crossover of a fuel, such as methanol, ethanol, other alcohols, methane, etc., to a cathode electrode can be minimized, and thus the catalyst coated electrolyte membrane has improved performance and durability.

    摘要翻译： 一种催化剂涂覆的电解质膜，其分别在其相对侧包括阳极催化剂层和阴极催化剂层，其中阳极催化剂层或阴极催化剂层的微裂纹占相应阳极催化剂层的总面积的0.01-1面积％ 或阴极催化剂层，包含该催化剂层的燃料电池和制备催化剂涂覆的电解质膜的方法。 在催化剂涂覆的电解质膜中，可以使阴极催化剂层或阳极催化剂层的微裂纹最小化，从而电极催化剂层和电解质膜之间的电阻可以最小化，并且燃料如甲醇，乙醇 ，其他醇，甲烷等可以最小化，因此催化剂涂覆的电解质膜具有改进的性能和耐久性。

    Fuel cell system comprising vapor-phase fuel supplying system
    85.
    发明授权
    Fuel cell system comprising vapor-phase fuel supplying system 有权
    包括气相燃料供应系统的燃料电池系统

    公开(公告)号：US08043765B2

    公开(公告)日：2011-10-25

    申请号：US11420169

    申请日：2006-05-24

    申请人： Hae-Kyoung Kim ,  Jung-Min Oh ,  Jae-Yong Lee ,  Hyuk Chang

    发明人： Hae-Kyoung Kim ,  Jung-Min Oh ,  Jae-Yong Lee ,  Hyuk Chang

    IPC分类号： H01M8/22 ,  H01M8/10 ,  H01M8/04

    CPC分类号： H01M4/8636 ,  H01M4/861 ,  H01M4/9016 ,  H01M8/0289 ,  H01M8/0297 ,  H01M8/04447 ,  H01M8/045 ,  H01M8/04619 ,  H01M8/04798 ,  H01M8/04835 ,  H01M8/1011 ,  H01M2008/1095 ,  Y02E60/523

    摘要： A fuel cell system is provided with a first separation layer and a buffer solution layer disposed between a liquid-phase fuel storage layer and an anode of a membrane electrode assembly. A vapor-phase fuel is transferred to the buffer solution layer through the first separation layer, condensed, and diluted to produce a liquid-phase fuel with a low concentration in the buffer solution layer, and the low concentration liquid-phase fuel is supplied to the membrane electrode assembly. A second separation layer may be interposed between the first separation layer and the fuel storage layer. Fuel is supplied by a passive supplying method so that the system can be small with a high efficiency and unnecessary power consumption can be prevented. The fuel cell system can be operated regardless of orientation.

    摘要翻译： 燃料电池系统设置有设置在液相燃料存储层和膜电极组件的阳极之间的第一分离层和缓冲溶液层。 将汽相燃料通过第一分离层转移到缓冲溶液层中，冷凝并稀释，以在缓冲溶液层中产生低浓度的液相燃料，并将低浓度液相燃料供应至 膜电极组件。 第二分离层可以介于第一分离层和燃料储存层之间。 通过无源供给方式供给燃料，能够高效率地实现系统的小型化，能够防止不必要的电力消耗。 无论方向如何，燃料电池系统都可以运行。

    Accelerated testing method of rapidly evaluating lifespan of fuel cell
    87.
    发明授权
    Accelerated testing method of rapidly evaluating lifespan of fuel cell 有权
    快速评估燃料电池寿命的加速试验方法

    公开(公告)号：US07906243B2

    公开(公告)日：2011-03-15

    申请号：US11336873

    申请日：2006-01-23

    申请人： Seung-jae Lee ,  Hyuk Chang ,  Ji-rae Kim ,  Gongquan Sun ,  Xinsheng Zhao ,  Qin Xin

    发明人： Seung-jae Lee ,  Hyuk Chang ,  Ji-rae Kim ,  Gongquan Sun ,  Xinsheng Zhao ,  Qin Xin

    IPC分类号： H01M8/00

    CPC分类号： H01M8/04582 ,  H01M8/04552 ,  H01M2008/1095

    摘要： A method of estimating a lifespan of a fuel cell including a cathode and an anode which contain catalysts and an electrolyte membrane interposed between the anode and the cathode. A cyclic potential with a voltage ranging from a low voltage to a voltage greater than oxidation voltages of the catalysts is applied between the anode and the cathode and fuel cell performance is measured initially and after a predetermined number of cycles. The lifespan of the fuel cell may estimated based on degradation of cell performance after the predetermined number of cycles, based on CV curves obtained during the cycling of the potential and/or a change in particle size of the catalysts after the predetermined number of cycles.

    摘要翻译： 一种估计包含阴极和阳极的燃料电池的使用寿命的方法，所述阴极和阳极含有催化剂和置于阳极和阴极之间的电解质膜。 在阳极和阴极之间施加具有从低电压到大于催化剂的氧化电压的电压的循环电位，并且在预定数量的循环之后测量燃料电池性能。 燃料电池的寿命可以基于在预定循环次数之后基于在电位循环期间获得的CV曲线和/或在预定循环次数之后催化剂的粒度变化，基于预定循环数之后的电池性能的降低来估计 。

    CARBON NANOTUBES FOR FUEL CELLS, METHOD FOR MANUFACTURING THE SAME, AND FUEL CELL USING THE SAME
    89.
    发明申请
    CARBON NANOTUBES FOR FUEL CELLS, METHOD FOR MANUFACTURING THE SAME, AND FUEL CELL USING THE SAME 有权
    用于燃料电池的碳纳米管，其制造方法和使用该燃料电池的燃料电池

    公开(公告)号：US20100018851A1

    公开(公告)日：2010-01-28

    申请号：US12511468

    申请日：2009-07-29

    申请人： Won-bong CHOI ,  Jae-uk Chu ,  Chan-ho Park ,  Hyuk Chang

    发明人： Won-bong CHOI ,  Jae-uk Chu ,  Chan-ho Park ,  Hyuk Chang

    IPC分类号： C01B31/02 ,  D01F9/12

    CPC分类号： H01M4/8605 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  H01M4/9083 ,  H01M4/926 ,  H01M2008/1095 ,  Y10S977/70 ,  Y10S977/701 ,  Y10S977/72 ,  Y10S977/743 ,  Y10S977/843 ,  Y10S977/847

    摘要： Carbon nanotubes for use in a fuel cell, a method for fabricating the same, and a fuel cell using the carbon nanotubes for its electrode are provided. The internal and external walls of the carbon nanotubes are doped with nano-sized metallic catalyst particles uniformly to a degree of 0.3-5 mg/cm2. The carbon nanotubes are grown over a carbon substrate using chemical vapor deposition or plasma enhanced chemical vapor deposition. Since the carbon nanotubes have a large specific surface area, and metallic catalyst particles are uniformly distributed over the internal and external walls thereof, the reaction efficiency in an electrode becomes maximal when the carbon nanotubes are used for the electrode of a fuel cell. The carbon nanotubes fabricated using the method can be applied to form a large electrode. The carbon nanotubes grown over the carbon substrate can be readily applied to an electrode of a fuel cell, providing economical advantages and simplifying the overall electrode manufacturing process. A fuel cell using as the carbon nanotubes for its electrode provides improved performance.

    摘要翻译： 提供了用于燃料电池的碳纳米管，其制造方法和使用该碳纳米管作为其电极的燃料电池。 碳纳米管的内壁和外壁均匀掺杂有纳米尺寸的金属催化剂颗粒至0.3-5mg / cm2的程度。 使用化学气相沉积或等离子体增强化学气相沉积在碳衬底上生长碳纳米管。 由于碳纳米管具有大的比表面积，并且金属催化剂颗粒均匀地分布在其内壁和外壁上，所以当将碳纳米管用于燃料电池的电极时，电极中的反应效率最大。 使用该方法制造的碳纳米管可以应用于形成大电极。 生长在碳基板上的碳纳米管可以容易地应用于燃料电池的电极，提供经济的优点并简化整个电极的制造过程。 使用作为其电极的碳纳米管的燃料电池提供改进的性能。