公开(公告)号：US20080311463A1

公开(公告)日：2008-12-18

申请号：US12130420

申请日：2008-05-30

申请人： Jun-Young PARK ,  Seung-shik Shin ,  Mee-young Lee ,  Tae-keun Kim

发明人： Jun-Young PARK ,  Seung-shik Shin ,  Mee-young Lee ,  Tae-keun Kim

IPC分类号： H01M4/96

CPC分类号： H01M8/0245 ,  H01M8/0234 ,  H01M8/0239 ,  H01M8/0243 ,  H01M8/04119 ,  H01M8/1004 ,  H01M8/1011 ,  Y02E60/523

摘要： A membrane electrode assembly in a fuel cell system includes a cathode electrode that includes a support layer; a catalyst layer; and a first carbon layer and second carbon layer between the support layer and the catalyst layer, the first carbon layer having a relatively higher porosity and the second carbon layer having a relatively lower porosity. Therefore, the membrane electrode assembly maintains good ion conductivity in the polymer electrolyte membrane by suppressing the movement of water molecules from the polymer electrolyte membrane to the cathode electrode using a water pressure between two carbon layers having different porosity. Also, a flooding phenomenon in the cathode electrode is prevented, thereby maintaining the smooth movement of the oxidizing agent in the cathode.

摘要翻译： 燃料电池系统中的膜电极组件包括：包括支撑层的阴极; 催化剂层; 以及在所述支撑层和所述催化剂层之间的第一碳层和第二碳层，所述第一碳层具有相对较高的孔隙率，并且所述第二碳层具有相对较低的孔隙率。 因此，通过使用具有不同孔隙率的两个碳层之间的水压抑制水分子从聚合物电解质膜向阴极的移动，膜电极组件在聚合物电解质膜中保持良好的离子传导性。 此外，防止阴极中的淹水现象，从而保持氧化剂在阴极中的平稳移动。

公开(公告)号：US20120091247A1

公开(公告)日：2012-04-19

申请号：US13233494

申请日：2011-09-15

申请人： Seung-Bok KIM ,  Jun-Young PARK

发明人： Seung-Bok KIM ,  Jun-Young PARK

IPC分类号： B65H54/28

CPC分类号： B65H75/265 ,  B65H54/2848

摘要： A traversor guide apparatus is disclosed. The present invention makes it possible to accurately measure a moved distance of an object by keeping a wire tightly wound on a bobbin even when a bobbin has an instant rotation.

摘要翻译： 公开了一种横动导向装置。 本发明使得即使当线轴具有即时旋转时，也可以通过保持紧紧卷绕在筒管上的线来精确地测量物体的移动距离。

公开(公告)号：US20100239922A1

公开(公告)日：2010-09-23

申请号：US12638676

申请日：2009-12-15

申请人： Chi-Seung LEE ,  Jin-Hwa LEE ,  Seong-Jin AN ,  Jun-Young PARK ,  Jun-Won SUH

发明人： Chi-Seung LEE ,  Jin-Hwa LEE ,  Seong-Jin AN ,  Jun-Young PARK ,  Jun-Won SUH

IPC分类号： H01M8/00 ,  H01M8/04

CPC分类号： H01M8/04126 ,  H01M8/04365 ,  H01M8/04738 ,  H01M8/04835

摘要： A fuel cell system and a method for driving the fuel cell system are disclosed. In one aspect, the fuel cell system may include a fuel stack, a fuel supply unit, an oxidizer supply unit, a humidifying unit, and a controller configured to measure the temperature of unit cells within the fuel cell stack and configured to detect the lowest measured temperature. The fuel cell stack may include a membrane electrode assembly and a plurality of unit cells. The membrane electrode assembly may include a membrane, a cathode disposed at a first side of the membrane and an anode disposed at a second side of the membrane. In another aspect, a method of driving a fuel cell system may include sequentially supplying a humidified fuel and an oxidizer to a fuel cell stack, measuring the temperature of each of a plurality of unit cells in the fuel cell stack, detecting to detect a unit cell having the lowest temperature among the measured temperature of each of the plurality of unit cells and decreasing humidification temperature of the fuel to be lower than the lowest temperature.

摘要翻译： 公开了燃料电池系统和驱动燃料电池系统的方法。 在一个方面，燃料电池系统可以包括燃料电池堆，燃料供应单元，氧化剂供应单元，加湿单元和配置成测量燃料电池堆内单元电池的温度并被配置为检测最低 测量温度。 燃料电池堆可以包括膜电极组件和多个单元电池。 膜电极组件可以包括膜，设置在膜的第一侧的阴极和设置在膜的第二侧的阳极。 在另一方面，驱动燃料电池系统的方法可以包括将加湿燃料和氧化剂顺序地供应到燃料电池堆，测量燃料电池堆中的多个单元电池中的每一个的温度，检测以检测单元 在多个单元电池中的每一个的测量温度中具有最低温度的单元，并且将燃料的加湿温度降低到低于最低温度。