公开(公告)号：US20090311560A1

公开(公告)日：2009-12-17

申请号：US12283459

申请日：2008-09-11

Applicant: Keun Je Lee ,  Kook II Han

Inventor： Keun Je Lee ,  Kook II Han

IPC: H01M8/04

CPC classification number: H01M8/04126 ,  B60L50/72 ,  B60L58/33 ,  H01M8/04798 ,  H01M8/18 ,  H01M2250/20 ,  Y02E60/528 ,  Y02T90/32 ,  Y02T90/34

Abstract: The present invention provides a method for reverse activation of a fuel cell, which can improve fuel cell performance by performing a first fuel cell activation process and then performing a second fuel cell activation process in which a hydrogen inlet and a hydrogen outlet of the fuel cell are shifted to an air (or oxygen) inlet and an air (or oxygen) outlet of the fuel cell.

Abstract translation: 本发明提供了一种燃料电池的反向激活方法，其可以通过执行第一燃料电池激活过程并且然后执行第二燃料电池激活过程来改善燃料电池性能，其中燃料电池的氢气入口和氢气出口 被转移到燃料电池的空气（或氧气）入口和空气（或氧气）出口。

公开(公告)号：US20100129696A1

公开(公告)日：2010-05-27

申请号：US12543361

申请日：2009-08-18

Applicant: Bo Ki Hong ,  Kook II Han ,  Sang Yeoul Ahn ,  Keun Je Lee ,  Byeong Heon Jeong

Inventor： Bo Ki Hong ,  Kook II Han ,  Sang Yeoul Ahn ,  Keun Je Lee ,  Byeong Heon Jeong

IPC: H01M2/14

CPC classification number: H01M8/0245 ,  H01M4/8807 ,  H01M8/0234 ,  H01M2008/1095 ,  Y02E60/50

Abstract: The present invention provides a gas diffusion layer for a fuel cell vehicle with improved operational stability, the gas diffusion layer, which functions to supply hydrogen and air (oxygen) as reactant gases to a fuel cell stack, discharge product water generated by an electrochemical reaction, and transmit generated electricity, being formed with a thinned structure.For this purpose, the present invention provides a gas diffusion layer for a fuel cell vehicle with improved operational stability, the gas diffusion layer being formed with a dual layer structure including a microporous layer and a macroporous substrate, the macroporous substrate being formed of a material selected from the group consisting of carbon fiber felt and carbon fiber paper, the gas diffusion layer being thinned to have a thickness of 200 to 300 μm at 25 kPa and a thickness of 170 to 250 μm at 1 MPa, a density of 0.20 to 0.60 g/cm3 at 25 kPa, a porosity of 50 to 90% measured by mercury intrusion, and a through-plane electrical resistance of 30 mΩ·cm2 or lower measured at a clamping pressure of 1 MPa.

Abstract translation: 本发明提供一种燃料电池车辆的气体扩散层，其具有改进的操作稳定性，气体扩散层用于将氢气和空气（氧气）作为反应气体供应到燃料电池堆，排出由电化学反应产生的产物水 并且发送生成的电力，形成有薄的结构。 为此，本发明提供一种燃料电池车辆的气体扩散层，其具有改善的操作稳定性，气体扩散层由具有微孔层和大孔基体的双层结构形成，大孔基体由材料形成 选自由碳纤维毡和碳纤维纸组成的组，气体扩散层在25kPa下变薄至厚度为200-300μm，在1MPa下为170-250μm，密度为0.20至0.60 25kPa下的g / cm 3，通过水银侵蚀测定的孔隙率为50〜90％，夹钳压力为1MPa时测定的通孔面电阻为30mΩ·cm 2·cm 2以下。