Patent ID: 7442463
Filing Date: 2008-10-28
Classification: H01M,Y02E

Abstract:
1. A fuel cell comprising an electrolyte electrode assembly and a pair of separators sandwiching said electrolyte electrode assembly, said electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between said anode and said cathode, wherein a plurality of first protrusions are provided on a first surface of said separator such that a first space is formed between said first protrusions and said electrolyte electrode assembly; a plurality of second protrusions are provided on a second surface of said separator such that a second space is formed between said second protrusions and said electrolyte electrode assembly; one of said first and second protrusions is an annular protrusion and the other of said first and second protrusions is a mountain shaped protrusion; and said mountain shaped protrusion is disposed in a recess formed by said annular protrusion.