Patent ID: 7838171
Filing Date: 2010-11-23
Classification: C22C,H01M,Y02E,Y02P,Y10T

Abstract:
1. A metallic separator for fuel cells, comprising: crystallization-type conductive inclusions enclosed in a base material, and a treated surface of the base material from which a part of the enclosed crystallization-type conductive inclusions project to form projecting conductive inclusions, the projecting conductive inclusions being penetrated into the base material by press-forming, the treated surface having a volume expanded base material, and the crystallization-type conductive inclusions and the base material satisfying the relation 0.16≦R/r≦0.8, where R is a diameter equivalent to the average diameter of the conductive inclusions, and r is a diameter equivalent to the average diameter of crystal grains of the base material; wherein the separator is a press-formed separator.