公开(公告)号：USH2240H1

公开(公告)日：2010-05-04

申请号：US11408359

申请日：2006-04-21

申请人： Michael T Davis ,  Francine Berretta ,  Siyu Ye ,  Bien H Chiem ,  Goran R Vlajnic ,  Bruce Lin

发明人： Michael T Davis ,  Francine Berretta ,  Siyu Ye ,  Bien H Chiem ,  Goran R Vlajnic ,  Bruce Lin

IPC分类号： H01M4/00

摘要： Performance in solid polymer electrolyte fuel cells can be improved by varying the characteristics of the ionomer used in the electrode of a membrane electrode assembly. For instance, increasing the ionomer to catalyst ratio can allow for improved performance under drier operating conditions (e.g., when less humidified reactants or higher operating temperatures are used) or when starting up in below freezing conditions.