Fuel cell separator and fuel cell

A fuel cell separator, comprising:

• a first plate;
• a second plate;
• a first manifold for first reactive gas supply formed on outer circumferences of the first plate and the second plate;
• a second manifold for first reactive gas exhaust formed on the outer circumferences;
• a third manifold for second reactive gas supply formed on the outer circumferences;
• and
• a fourth manifold for second reactive gas exhaust formed on the outer circumferences,
• wherein the first plate has a plurality of strip-shaped first projections protruded toward the second plate to define a plurality of second reactive gas flow paths,
• the second plate has a plurality of strip-shaped second projections protruded toward the first plate to define a plurality of second reactive gas flow paths,
• a top of each of the plurality of the first projections is in contact with a bottom of a recess arranged between adjacent two of the plurality of the second projections formed on the second plate,
• a top of each of the plurality of the second projections is in contact with a bottom of a recess arranged between adjacent two of the plurality of the first projections formed on the first plate,
• the first reactive gas flow paths are alternately connected with the first manifold and the second manifold,
• the first reactive gas flow paths have closed ends that are opposite to respective connection ends alternately connecting with the first manifold and the second manifold,
• the second reactive gas flow paths are alternately connected with the third manifold and the fourth manifold, and
• the second reactive gas flow paths have closed ends that are opposite to respective connection ends alternately connecting with the third manifold and the fourth manifold.