公开(公告)号：US07144649B2

公开(公告)日：2006-12-05

申请号：US10307008

申请日：2002-11-27

申请人： Jean Yamanis ,  Sunil G. Warrier ,  Venkata R. Vedula ,  Raymond C. Benn ,  John G. Smeggil ,  Shihong G. Song ,  Wayde R. Schmidt

发明人： Jean Yamanis ,  Sunil G. Warrier ,  Venkata R. Vedula ,  Raymond C. Benn ,  John G. Smeggil ,  Shihong G. Song ,  Wayde R. Schmidt

IPC分类号： H01M2/00 ,  H01M8/00

CPC分类号： H01M8/0232 ,  H01M4/8621 ,  H01M8/0228 ,  H01M8/2425 ,  H01M8/2432

摘要： A fuel cell stack includes a plurality of fuel cells each having an anode layer, an electrolyte layer, and a cathode layer, the fuel cells each having a first effective thermal expansion coefficient; a plurality of bipolar plates positioned between adjacent fuel cells having an anode interconnect, a separator plate, and a cathode interconnect, the bipolar plates being positioned between adjacent fuel cells, wherein the anode interconnect is in electrical communication with the anode layer of one adjacent fuel cell, wherein the cathode interconnect is in electrical communication with the cathode layer of another adjacent fuel cell, and wherein at least one interconnect of the cathode interconnect and the anode interconnect has a second thermal expansion coefficient and is adapted to reduce strain between the at least one interconnect and an adjacent fuel cell due to differences between the first and second thermal expansion coefficients over repeated thermal cycles.

摘要翻译： 燃料电池堆包括多个具有阳极层，电解质层和阴极层的燃料电池，所述燃料电池各自具有第一有效热膨胀系数; 定位在具有阳极互连，隔板和阴极互连的相邻燃料电池之间的多个双极板，所述双极板位于相邻的燃料电池之间，其中阳极互连与一个相邻燃料的阳极层电连通 电池，其中所述阴极互连与另一相邻燃料电池的阴极层电连通，并且其中所述阴极互连和所述阳极互连的至少一个互连具有第二热膨胀系数，并且适于减小所述至少 一个互连和相邻的燃料电池，因为在重复的热循环中第一和第二热膨胀系数之间的差异。