公开(公告)号：WO2007122431A1

公开(公告)日：2007-11-01

申请号：PCT/GB2007/050211

申请日：2007-04-24

Applicant: ACAL ENERGY LIMITED ,  CREETH, Andrew, Martin ,  LIU, Jian-Guo

Inventor： CREETH, Andrew, Martin ,  LIU, Jian-Guo

IPC: H01M8/10 ,  H01M8/18

CPC classification number: H01M8/188 ,  H01M8/10 ,  H01M8/1009 ,  H01M8/1011 ,  H01M8/1013 ,  H01M8/18 ,  H01M8/20 ,  Y02E60/522 ,  Y02E60/523 ,  Y02E60/528

Abstract: The invention provides a fuel cell comprising an anode in an anode region of the cell and a cathode in a cathode region of the cell, the anode being separated from the cathode by an ion selective polymer electrolyte membrane, the anode region of the cell being supplied in use thereof with an alcoholic fuel, the cathode region of the cell being supplied in use thereof with an oxidant, the cell being provided with means for generating an electrical circuit between the anode and the cathode and with a non¬ volatile redox couple in solution in flowing fluid communication with the cathode in the cathode region of the cell, the redox couple being at least partially reduced at the cathode in operation of the cell, and at least partially re-generated by reaction with the oxidant after such reduction at the cathode, the redox couple and/or the concentration of the redox couple in the catholyte solution being selected so that the current density generated by the cell in operation is substantially unaffected by the crossover of the alcoholic fuel from the anode region of the cell to the cathode region of the cell across the polymer electrolyte membrane.

Abstract translation: 本发明提供了一种燃料电池，其包括在电池的阳极区域中的阳极和电解池的阴极区域中的阴极，阳极通过离子选择性聚合物电解质膜与阴极分离，电池的阳极区域被供应 在使用其中与醇燃料一起使用时，电池的阴极区域与氧化剂一起供应，该电池提供有用于在阳极和阴极之间产生电路以及溶液中的非挥发性氧化还原对的装置 在电池的阴极区域与阴极流体连通的情况下，氧化还原对在电解池的操作中在阴极处至少部分地还原，并且在阴极这样的还原之后至少部分地通过与氧化剂的反应再生成 ，选择氧化还原对和/或阴极电解液中的氧化还原对的浓度，使得电池在运行中产生的电流密度是实质的 不受酒精燃料从电池的阳极区域跨过聚合物电解质膜的电池的阴极区域的交叉的影响。