Fuel cell and fuel cell system

The invention relates to a fuel cell (1) comprising a polymer electrolyte membrane (2), on a first side of which an anode electrode (3) is assigned and on a second side of which a cathode electrode (4) is assigned, each electrode (3, 4) being assigned on its side facing away from the polymer dielectric membrane (2) a gas diffusion layer (5), and wherein each gas diffusion layer (5) is assigned a flow field plate (6) on the side thereof facing away from the polymer dielectric film (2), which flow field plate (6) has a flow field for distributing reactants, characterized in that at least one duct section (7) made of a hygroscopic material and/or a capillary active material is present, for conducting water and thus for humidifying the polymer electrolyte membrane (2). 本发明涉及一种燃料电池（1），其包括聚合物电解质膜（2），在所述聚合物电介质膜的第一侧上分配有阳极电极（3），在所述聚合物电介质膜的第二侧上分配有阴极电极（4），其中每个电极（3、4）在其背离所述聚合物电介质膜（2）的侧上分配有气体扩散层（5），以及其中每个气体扩散层（5）在其背离所述聚合物电介质膜（2）的侧上分配有流场板（6），所述流场板（6）具有用于分布反应物的流场，其特征在于，存在至少一个由吸湿材料和/或毛细活性材料形成的管道段（7），用于传导水并因此用于对所述聚合物电解质膜（2）加湿