Patent ID: 9406953
Filing Date: 2016-08-02
CPC Classification: H01M,Y02E

Claim Text:
1. A fuel cell stack formed by stacking a plurality of fuel cells in a stacking direction, the fuel cells each being formed by sandwiching an electrolyte electrode assembly between a first separator and a second separator, the electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between the anode and the cathode, the first separator formed of only a first separator first plate and a first separator second plate which are joined together, the first separator including only: the second separator formed of only a second separator first plate and a second separator second plate which are joined together, the second separator including only: wherein a displacement absorbing mechanism for absorbing displacement generated in the fuel cell stack is formed in each of the first sandwiching section, the second sandwiching section, the fuel gas supply section, and the oxygen-containing gas supply section, wherein the displacement absorbing mechanism formed in the first sandwiching section includes: wherein the displacement absorbing mechanism formed in the second sandwiching section includes: wherein the first projections and the first protrusions are not overlapped with each other in the stacking direction, and the second projections and the second protrusions are not overlapped with each other in the stacking direction, and wherein the first separator and the second separator have a same shape.