公开(公告)号：WO2017163244A1

公开(公告)日：2017-09-28

申请号：PCT/IL2017/050356

申请日：2017-03-21

Applicant: PO CELLTECH LTD.

Inventor： PASKA, Yair ,  PAGE, Miles ,  BENJAMIN, Yair ,  GOTTESFELD, Shimshon

IPC: H01M8/083 ,  H01M8/04119 ,  H01M8/04029 ,  H01M8/0267 ,  H01M8/0234 ,  H01M8/0232

CPC classification number: H01M8/083 ,  H01M4/8807 ,  H01M4/881 ,  H01M8/023 ,  H01M8/0232 ,  H01M8/0234 ,  H01M8/0258 ,  H01M8/0267 ,  H01M8/0289 ,  H01M8/04029 ,  H01M8/04119 ,  H01M8/1062 ,  H01M8/1067

Abstract: The invention relates to a system and method of operating alkaline exchange membrane fuel cells in a bipolar configuration. The system (400) may include a first fuel cell (300A) and a second fuel cell (300B) adjacent to the first fuel cell. Each of the first and second fuel cells may include: a cathode configured to generate hydroxide ions from water, oxygen and electrons, an anode configured to generate water and electrons from the hydroxide ions and hydrogen received from a hydrogen source, and an alkaline exchange membrane configured to transfer the hydroxide ions from the cathode to the anode, and to transfer water from a vicinity of the anode to a vicinity of the cathode. The first fuel cell (300A) and a second fuel cell (300B) are connected by a porous bipolar plate (430A) positioned inbetween. A pressure profile across the first bi-polar plate may drop from higher level near the anode of the first fuel cell (300A) to lower level near the cathode of the second fuel cell (300B) so that water may be transferred from the anode of the first fuel cell (300A) to the cathode of the second fuel cell (300B).

Abstract translation: 本发明涉及一种以双极结构操作碱性交换膜燃料电池的系统和方法。 系统（400）可以包括与第一燃料电池相邻的第一燃料电池（300A）和第二燃料电池（300B）。 第一燃料电池和第二燃料电池中的每一个可以包括：被配置为从水，氧和电子产生氢氧根离子的正极，被配置为从氢氧离子和从氢源接收的氢产生水和电子的正极，以及碱性交换膜 配置成将氢氧根离子从阴极转移到阳极，并将水从阳极附近转移到阴极附近。 第一燃料电池（300A）和第二燃料电池（300B）通过位于其间的多孔双极板（430A）连接。 跨越第一双极板的压力分布可以从靠近第一燃料电池（300A）的阳极的较高水平下降到靠近第二燃料电池（300B）的阴极的较低水平，使得水可以从第一燃料电池 第一燃料电池（300A）连接到第二燃料电池（300B）的阴极。