公开(公告)号：US20100028744A1

公开(公告)日：2010-02-04

申请号：US12185640

申请日：2008-08-04

申请人： CHRISTIAN WIESER ,  Chunxin Ji ,  Mark Mathias ,  Daniel R. Baker ,  Paul D. Nicotera

发明人： CHRISTIAN WIESER ,  Chunxin Ji ,  Mark Mathias ,  Daniel R. Baker ,  Paul D. Nicotera

IPC分类号： H01M8/10 ,  H01M4/86 ,  H01M8/02

CPC分类号： H01M8/0243 ,  H01M8/0234 ,  H01M8/0239 ,  H01M2008/1095

摘要： A gas diffusion layer for use in fuel cells comprises a fiber and non-fiber material in a ratio such that the water vapor diffusion transport resistance is greater than 0.8 s/cm measured at 80 C and 150 kPa absolute gas pressure when the gas diffusion layer has a thickness less than or equal to 300 microns. Another gas diffusion layer comprises a fiber and non-fiber material in a ratio such that the water vapor diffusion transport resistance is lower than 0.4 s/cm measured at 80 C and 150 kPa absolute gas pressure when the gas diffusion layer has a thickness greater than or equal to 100 microns. Fuel cells incorporating the gas diffusion layers are also provided.

摘要翻译： 用于燃料电池的气体扩散层包括纤维和非纤维材料，其比例使得当气体扩散层在80℃和150kPa绝对气压下测得的水蒸气扩散传输阻力大于0.8s / cm 具有小于或等于300微米的厚度。 另一个气体扩散层包括纤维和非纤维材料，其比例使得当气体扩散层的厚度大于80℃时，在80℃和150kPa绝对气压下测得的水蒸汽扩散传输阻抗低于0.4s / cm 或等于100微米。 还提供了并入气体扩散层的燃料电池。