Fuel cell and cell stack device

A cell stack device comprising:

• a manifold including a gas supply chamber and a gas collection chamber;
• and
• a fuel cell including a support substrate and at least one power generation element portion, the support substrate extending from the manifold in a first direction, the power generation element portion being supported by the support substrate,
• wherein the support substrate includes at least one first gas channel and at least one second gas channel, the first gas channel extending in the first direction, the first gas channel being connected to the gas supply chamber, the second gas channel extending in the first direction, the second gas channel being connected to the gas collection chamber,
• the first gas channel and the second gas channel each include a proximal end portion located on the manifold side and a distal end portion that is opposite the proximal end portion,
• the first gas channel is open in the gas supply chamber at the proximal end portion,
• the second gas channel is open in the gas collection chamber at the proximal end portion,
• the first gas channel and the second gas channel are connected to each other on the distal end portion side, and
• the first gas channel and the second gas channel are configured such that a pressure loss of gas in the first gas channel is smaller than a pressure loss of gas in the second gas channel.