| abstract |
A fuel cell is manufactured that is excellent in assembly soundness of a fuel cell stack, and hardly deteriorates in battery characteristics even when operated for a long time. A fuel cell separator made of a molded body preferably containing graphite and a resin having a bending fracture strain of 0.5% or more, a compression modulus of 20 GPa or less, or a Shore hardness of 20-50, And the total concentration of sodium, potassium, iron, nickel, and magnesium eluted in the immersion water after being immersed in 30 times the volume of the molded body maintained at 80 ° C. for 100 hours. A fuel cell separator having a sulfur concentration of 30 ppm or less. [Selection figure] None |