Patent ID: 8241815
Filing Date: 2012-08-14
Classification: H01M,Y02E,Y02P

Abstract:
1. A solid oxide fuel cell (SOFC) device having gradient interconnects, comprising: a first gradient interconnect having opposing first and second surfaces, a first trench formed over the first surface the first gradient interconnect, a second trench formed over the second surface of the first gradient interconnect, and an interconnecting tunnel formed in the first gradient interconnect for connecting the first and second trenches; a first porous conducting disc positioned in the first trench, partially protruding over the first surface of the first gradient interconnect; a first sealing layer placed over the first surface of the first gradient interconnect, surrounding the first trench; and a membrane electrode assembly (MEA) positioned over the first surface of the first gradient interconnect, wherein the MEA comprises an electrolyte layer having opposing first and second surfaces, a first electrode placed over the first surface, and a second electrode placed over the second surface, and the first surface of the electrolyte layer contacts with the first sealing layer and the first electrode contacts with the first porous conducting disc.