Patent ID: 7816058
Filing Date: 2010-10-19
Classification: H01M,Y02E

Abstract:
1. An assembly for a fuel cell comprising: an ionically conductive membrane having a major surface; an electrically conductive member facing said membrane major surface and having an active layer, said active layer having an active layer catalyst content; and an electrode between said ionically conductive membrane and said electrically conductive member, said electrode having a major surface at said membrane major surface, and said electrode having an electrode catalyst content, wherein said electrode has a peripheral extent substantially the same as the membrane and wherein said electrode further comprises a central region and a peripheral region, said central region having a first group of catalyzed particles dispersed in a binder, said peripheral region having a second group of particles dispersed in a binder that are catalyzed or uncatalyzed, said peripheral region overlapping a peripheral extent of said active layer, and said central region being within said peripheral extent of said active layer; wherein said peripheral region is electrically non-conductive.