Patent ID: 9362573
Filing Date: 2016-06-07
CPC Classification: H01M,Y02E,Y02T

Claim Text:
1. A fuel cell comprising: an electrolyte membrane; a first electrode joined to one surface of the electrolyte membrane; and a second electrode joined to an other surface of the electrolyte membrane, the other surface being different from the one surface, wherein a first peripheral section which is at least part of periphery of the first electrode is located on an inner side of respective peripheries of the electrolyte membrane and the second electrode in a planar direction of the first electrode, wherein a periphery of the electrolyte membrane is kept in a deformed state toward the first electrode side, by the periphery of the second electrode pressing the periphery of the electrolyte membrane, the fuel cell further comprising: a stress suppressing structure configured to suppress concentration of stress on a location along the first peripheral section in the electrolyte membrane, the stress suppressing structure placed in contact or non-contact state with the electrolyte membrane, the concentration of stress occurring when the periphery of the electrolyte membrane is deformed toward the first electrode side.