Fuel cell stack

The invention discloses a fuel cell stack, which comprises at least one fuel cell monomer, the fuel cell monomer comprises an electrolyte layer, and a cathode and an anode arranged on two sides of the electrolyte layer; the fuel cell monomer further comprises a fuel channel for supplying fuel to the anode, a reforming reaction pipeline is arranged in the fuel channel, and the reforming reaction pipeline is suitable for absorbing heat generated by the fuel channel so as to carry out reforming reaction on raw material gas introduced into the reforming reaction pipeline. According to the invention, a reforming reaction can be utilized to absorb heat and cool a fuel channel, and output reformed gas can be fully utilized, so that the utilization rate of energy is improved. 本发明公开了一种燃料电池堆，包括至少一燃料电池单体，所述燃料电池单体包括电解质层和设于电解质层两侧的阴极和阳极；所述燃料电池单体还包括向所述阳极供给燃料的燃料通道，所述燃料通道内设有重整反应管路，所述重整反应管路适于吸收燃料通道产生的热量以对通入重整反应管路中的原料气进行重整反应。它能够利用重整反应对燃料通道进行吸热降温，并可对输出的重整气进行充分利用，提高了能源的利用率。