Fuel cell

A fuel cell comprising:

• a membrane electrode assembly including an electrolyte membrane, an anode provided on one surface of the electrolyte membrane, and a cathode provided on another surface of the electrolyte membrane;
• a frame member surrounding an outer peripheral portion of the membrane electrode assembly;
• a pair of separators sandwiching the membrane electrode assembly;
• and
• a sensor including:
• a sensor portion provided on at least one of the separators, the frame member, or the electrolyte membrane;
• and a wiring portion connected to the sensor portion and extending to an outer peripheral portion of one of the separators or the outer peripheral portion of the membrane electrode assembly,
• wherein the sensor further includes:
• a base insulating film that covers a surface of a sensor arrangement region in which the sensor is arranged;
• a wiring pattern laminated on the base insulating film;
• and
• a covering insulating film that covers the wiring pattern and a portion of the base insulating film that is not covered with the wiring pattern, and
• wherein the sensor is formed on the frame member, and the frame member also serves as the base insulating film.

A fuel cell comprising:

• a membrane electrode assembly including an electrolyte membrane, an anode provided on one surface of the electrolyte membrane, and a cathode provided on another surface of the electrolyte membrane;
• a frame member surrounding an outer peripheral portion of the membrane electrode assembly;
• a pair of separators sandwiching the membrane electrode assembly;
• and
• a sensor including:
• a sensor portion provided on at least one of the separators, the frame member, or the electrolyte membrane;
• and a wiring portion connected to the sensor portion and extending to an outer peripheral portion of one of the separators or the outer peripheral portion of the membrane electrode assembly,
• wherein the sensor further includes:
• a base insulating film that covers a surface of a sensor arrangement region in which the sensor is arranged;
• a wiring pattern laminated on the base insulating film;
• and
• a covering insulating film that covers the wiring pattern and a portion of the base insulating film that is not covered with the wiring pattern,
• wherein the wiring portion includes:
• a first wiring portion formed on a surface of one of the separators and including a first wiring pattern;
• and a second wiring portion formed on a surface of another of the separators and including a second wiring pattern,
• wherein the sensor portion includes:
• a first sensor portion where the first wiring pattern is exposed at an end portion of the first wiring portion;
• and a second sensor portion where the second wiring pattern is exposed at an end portion of the second wiring portion, and
• wherein the first sensor portion and the second sensor portion are disposed so as to sandwich the membrane electrode assembly, and are electrically connected to the membrane electrode assembly.