公开(公告)号：US20120237848A1

公开(公告)日：2012-09-20

申请号：US13373512

申请日：2011-11-16

申请人： Cortney K. Mittelsteadt ,  Castro S.T. Laicer ,  Katherine E. Harrison ,  Bryn M. McPheeters

发明人： Cortney K. Mittelsteadt ,  Castro S.T. Laicer ,  Katherine E. Harrison ,  Bryn M. McPheeters

IPC分类号： C25B9/10 ,  C25B9/18 ,  H01M8/10 ,  H01M8/24 ,  B82Y30/00

CPC分类号： H01M8/1039 ,  C25B13/04 ,  H01M4/8807 ,  H01M8/023 ,  Y02E60/523

摘要： An electrochemical device, such as a fuel cell or an electrolyzer. In one embodiment, the electrochemical device includes a membrane electrode assembly (MEA), an anodic gas diffusion medium in contact with the anode of the MEA, a cathodic gas diffusion medium in contact with the cathode, a first bipolar plate in contact with the anodic gas diffusion medium, and a second bipolar plate in contact with the cathodic gas diffusion medium. Each of the bipolar plates includes an electrically-conductive, non-porous, liquid-permeable, substantially gas-impermeable membrane in contact with its respective gas diffusion medium, the membrane including a solid polymer electrolyte and a non-particulate, electrically-conductive material, such as carbon nanotubes, carbon nanofibers, and/or metal nanowires. In addition, each bipolar plate also includes an electrically-conductive fluid chamber in contact with the electrically-conductive, selectively-permeable membrane and further includes a non-porous and electrically-conductive plate in contact with the fluid chamber.

摘要翻译： 电化学装置，例如燃料电池或电解槽。 在一个实施方案中，电化学装置包括膜电极组件（MEA），与MEA的阳极接触的阳极气体扩散介质，与阴极接触的阴极气体扩散介质，与阳极接触的第一双极板 气体扩散介质和与阴极气体扩散介质接触的第二双极板。 每个双极板包括与其各自的气体扩散介质接触的导电的，无孔的，液体可渗透的，基本不透气的膜，该膜包括固体聚合物电解质和非颗粒导电材料 ，例如碳纳米管，碳纳米纤维和/或金属纳米线。 此外，每个双极板还包括与导电的选择性渗透膜接触的导电流体室，并且还包括与流体室接触的无孔和导电板。