公开(公告)号：US08415072B2

公开(公告)日：2013-04-09

申请号：US11508148

申请日：2006-08-23

申请人： Jung-min Oh ,  Hae-kyoung Kim ,  Ji-rae Kim ,  Joon-hee Kim ,  Yoon-hoi Lee ,  Sang-hoon Joo

发明人： Jung-min Oh ,  Hae-kyoung Kim ,  Ji-rae Kim ,  Joon-hee Kim ,  Yoon-hoi Lee ,  Sang-hoon Joo

IPC分类号： H01M6/02

CPC分类号： H01M8/1004 ,  H01M8/0232 ,  H01M8/0234 ,  H01M8/0236 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/0245 ,  H01M8/0247 ,  H01M8/0269 ,  Y02P70/56

摘要： A membrane electrode assembly for a fuel cell provides a current collector adjacent to an electrode catalyst layer. Since electrons passing between the current collector and the electrode catalyst layer do not pass through a diffusion layer or a supporting layer, the diffusion layer or supporting layer may be non-conductive. Thus, various materials that are hydrophilic, hydrophobic, porous, hydrous, or the like can be used for the diffusion layer and the supporting layer, thereby improving the performance of the fuel cell. In addition, manufacturing costs of the membrane electrode assembly can be decreased since the membrane electrode assembly can be manufactured quickly with low energy.

摘要翻译： 用于燃料电池的膜电极组件提供与电极催化剂层相邻的集电体。 由于在集电体和电极催化剂层之间通过的电子不通过扩散层或支撑层，所以扩散层或支撑层可以是不导电的。 因此，可以将各种亲水，疏水，多孔，含水等的材料用于扩散层和支撑层，从而提高燃料电池的性能。 此外，膜电极组件的制造成本可以降低，因为可以以低能量快速制造膜电极组件。

公开(公告)号：US20080292942A1

公开(公告)日：2008-11-27

申请号：US12102289

申请日：2008-04-14

申请人： Dae-jong You ,  Yoon-hoi Lee ,  Chan-ho Pak ,  Ji-rae Kim

发明人： Dae-jong You ,  Yoon-hoi Lee ,  Chan-ho Pak ,  Ji-rae Kim

IPC分类号： H01M4/86 ,  H01M4/88

CPC分类号： H01M8/1011 ,  H01M4/881 ,  H01M4/8814 ,  H01M4/8828 ,  H01M4/8882 ,  H01M8/1004 ,  Y02E60/523 ,  Y02P70/56

摘要： A membrane electrode assembly for a fuel cell including a porous catalyst layer, and a method of manufacturing the same in which an electrode includes a catalyst layer formed adjacent to a surface of an electrolyte membrane, and the catalyst layer has a uniform porosity as pluralities of pores are uniformly distributed on the catalyst layer.

摘要翻译： 一种用于包括多孔催化剂层的燃料电池的膜电极组件及其制造方法，其中电极包括邻近电解质膜的表面形成的催化剂层，并且催化剂层具有均匀的多孔孔 孔均匀分布在催化剂层上。

公开(公告)号：US20120171592A1

公开(公告)日：2012-07-05

申请号：US13109056

申请日：2011-05-17

申请人： Tae-won SONG ,  Jung-seok Yi ,  Kyoung-hwan Choi ,  Ji-rae Kim

发明人： Tae-won SONG ,  Jung-seok Yi ,  Kyoung-hwan Choi ,  Ji-rae Kim

IPC分类号： H01M2/08 ,  H01M8/24

CPC分类号： H01M8/0273 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0271 ,  H01M8/0276 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2483

摘要： A unit cell of a fuel cell stack, and a fuel cell stack including the unit cell, where the unit cell includes channel plates including first and second manifolds, a plurality of channels and channel connecting units; hard plates arranged to contact surfaces of the channel connecting units; and gaskets arranged to surround the plurality of channels and first and second manifolds between the channel plates and the hard plates.

摘要翻译： 燃料电池堆的单元电池和包括单元电池的燃料电池堆，其中单元电池包括包括第一和第二歧管的通道板，多个通道和通道连接单元; 布置成接触通道连接单元的表面的硬板; 以及被布置成围绕多个通道的垫圈以及在通道板和硬板之间的第一和第二歧管。

公开(公告)号：US07335436B2

公开(公告)日：2008-02-26

申请号：US10107170

申请日：2002-03-28

申请人： Ji-rae Kim ,  Kyoung-hwan Choi

发明人： Ji-rae Kim ,  Kyoung-hwan Choi

IPC分类号： H01M8/04

CPC分类号： H01M8/04074 ,  H01M8/0263 ,  H01M8/0271 ,  H01M8/04014 ,  H01M8/1007 ,  H01M8/241 ,  H01M2300/0082

摘要： Provided a proton exchange membrane fuel cell (PEMFC) stack with at least two cell units. Each cell unit includes: a catalyzed membrane formed by catalyzing both surfaces of an electrolyte layer; a fuel flow field portion and air flow field portion formed at opposite surfaces of the catalyzed membrane, at least one of the fuel and air flow field portions comprising a parallel flow field which induces gas flow in a direction parallel to the surface of the catalyzed membrane and an orthogonal flow field which induces gas flow in a direction orthogonal to the surface of the catalyzed membrane; a bipolar plate in contact with each outer surface of the fuel flow region portion and the air flow region portions. The volume and weight of the entire fuel cell stack can be flexibly reduced by adjusting the number of cell units. In addition, a defective cell unit can be easily replaced without performance degradation in the cell stack. The use of bipolar plates as electrodes promotes gas flow. The PEMFC stack can effectively dissipate the reaction heat with a cooling member and can increase the power density per unit weight and volume. In particular, a pressure drop can be prevented with a serpentine air flow channel formed in the air flow field region, thereby increasing fuel conversion efficiency.

摘要翻译： 提供了具有至少两个电池单元的质子交换膜燃料电池（PEMFC）堆叠。 每个电池单元包括：通过催化电解质层的两个表面形成的催化膜; 燃料流场部分和空气流场部分，形成在催化膜的相对表面处，燃料和空气流场部分中的至少一个包括平行流场，其在平行于催化膜表面的方向上引起气体流动 以及正交流场，其在与所述催化膜的表面正交的方向上引起气体流动; 与燃料流动区域部分的每个外表面和空气流动区域部分接触的双极板。 整个燃料电池堆的体积和重量可以通过调整电池单元的数量来灵活地减少。 此外，可以容易地更换有缺陷的单元单元，而不会在单元堆栈中性能下降。 使用双极板作为电极促进气体流动。 PEMFC堆叠可以有效地消散与冷却构件的反应热量，并且可以增加每单位重量和体积的功率密度。 特别地，可以通过形成在空气流场区域中的蛇形空气流动通道来防止压降，从而提高燃料转化效率。

公开(公告)号：US07232624B2

公开(公告)日：2007-06-19

申请号：US10270586

申请日：2002-10-16

申请人： Ji-rae Kim

发明人： Ji-rae Kim

IPC分类号： H01M4/00

CPC分类号： H01M4/8882 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/8828 ,  H01M4/96 ,  H01M8/1004 ,  H01M2300/0082 ,  Y02P70/56

摘要： Provided is a method of producing a membrane and electrode assembly (MEA) comprising: mixing a metal catalyst with pure water, perfluorinated polymer ionomer and a polar organic solvent to prepare a composition for forming a catalyst layer; coating a diffusion layer formed on an electrode support with the catalyst layer forming composition, drying to forming a catalyst layer, thereby preparing a cathode and an anode, respectively; and interposing an electrolyte membrane between the anode and the cathode. The electrode catalyst for a fuel cell is inactivated to prevent spontaneous oxidation, thereby stabilizing the catalyst.

摘要翻译： 提供一种膜和电极组件（MEA）的制造方法，其包括：将金属催化剂与纯水，全氟化聚合物离聚物和极性有机溶剂混合以制备用于形成催化剂层的组合物; 用形成催化剂层的组合物涂覆形成在电极载体上的扩散层，干燥以形成催化剂层，从而分别制备阴极和阳极; 并且在阳极和阴极之间插入电解质膜。 用于燃料电池的电极催化剂失活以防止自发氧化，从而稳定催化剂。

公开(公告)号：US20050069754A1

公开(公告)日：2005-03-31

申请号：US10942779

申请日：2004-09-17

申请人： Ji-rae Kim ,  Kyoung-hwan Choi

发明人： Ji-rae Kim ,  Kyoung-hwan Choi

IPC分类号： H01M4/96 ,  H01M4/86 ,  H01M4/88 ,  H01M4/92 ,  H01M8/02 ,  H01M8/10

CPC分类号： H01M8/0243 ,  H01M4/8605 ,  H01M4/8807 ,  H01M4/926 ,  H01M8/0213 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/1004

摘要： A diffusion electrode for a fuel cell, having good polar liquid transporting property and gas transporting property, and an electrode and a fuel cell using the diffusion electrode are provided. The diffusion electrode includes: hydrophobic porous agglomerates containing electroconductive particles and a hydrophobic binder resin, wherein the hydrophobic porous agglomerates form a three dimensional netlike structure; and hydrophilic porous agglomerates containing electroconductive particles, wherein the hydrophilic porous agglomerates form a three dimensional netlike structure filling empty space among the three dimensional netlike structure formed by the hydrophobic porous agglomerates..

摘要翻译： 提供了具有良好的极性液体输送性和气体输送性的燃料电池用扩散电极，以及使用该扩散电极的电极和燃料电池。 扩散电极包括：含有导电颗粒和疏水性粘合剂树脂的疏水性多孔聚集体，其中所述疏水性多孔团聚体形成三维网状结构; 以及含有导电颗粒的亲水性多孔聚集体，其中亲水性多孔聚集体形成三维网状结构，填充由疏水性多孔聚集体形成的三维网状结构之间的空白空间。

公开(公告)号：US20120183871A1

公开(公告)日：2012-07-19

申请号：US13172049

申请日：2011-06-29

申请人： Tae-young KIM ,  Jung-ock Park ,  Suk-gi Hong ,  Tae-won Song ,  Ji-rae Kim

发明人： Tae-young KIM ,  Jung-ock Park ,  Suk-gi Hong ,  Tae-won Song ,  Ji-rae Kim

IPC分类号： H01M8/04

CPC分类号： H01M8/04365 ,  H01M8/0432 ,  H01M8/0494 ,  H01M8/12 ,  Y02P70/56

摘要： A method of operating a high-temperature fuel cell, the method including increasing the temperature of a fuel cell stack the operation of which has stopped; starting the operation of the fuel cell stack and applying at least a portion of a load to the fuel cell stack when the temperature of the fuel cell stack reaches a first temperature; and applying any remaining load to the fuel cell stack when the temperature of the fuel cell stack reaches a second temperature that is higher than the first temperature.

摘要翻译： 一种操作高温燃料电池的方法，该方法包括提高其操作已经停止的燃料电池堆的温度; 当所述燃料电池堆的温度达到第一温度时，开始所述燃料电池堆的操作并将至少一部分负载施加到所述燃料电池堆; 以及当燃料电池堆的温度达到高于第一温度的第二温度时，将任何剩余的负载施加到燃料电池堆。