| abstract |
In a direct methanol fuel cell, conventionally, carbon dioxide gas generated at the anode pole side is discharged together with a methanol aqueous solution, from which the carbon dioxide gas is separated so as to be used again as a fuel. In this case, it is necessary to provide an air-liquid separation device, which increases the fuel cell size and weight. Provided are a small-size fuel cell and fuel cell stack having an improved output. The fuel cell includes: a first unit cell having a cathode pole, an electrolyte film, an anode pole, and an anode collector layer which are arranged in this order; and at least one spacer layered on the anode collector layer. The anode collector layer has a fuel channel for supplying the fuel to the anode pole and a through hole for discharging a reaction product from the anode pole. The spacer has a discharge channel for discharging the reaction product outside the fuel cell. The through hole communicates with the discharge channel. This solves the aforementioned problem. |