Porous current collector, fuel cell, and method for producing porous current collector

摘要

An inexpensive porous current collector having high durability is provided by forming a silver layer having high strength on a current collector formed from a nickel porous base material. Porous current collectors 8a and 9a are used in a fuel cell 101 including a solid electrolyte layer 2, a first electrode layer 3 on one side of the solid electrolyte layer, and a second electrode layer 4 on the other side. The porous current collectors each include: an alloy layer 60a, which is formed from a tin (Sn)-containing alloy, at least on the surfaces of continuous pores 52 of a nickel porous base material 60 having the continuous pores 52; and a silver layer 55 stacked on the alloy layer.