Fuel cell assembly with a turbulence inducing device for reduction of a temperature gradient

The present invention relates to an air-cooled fuel cell assembly (9) comprising a fuel cell (1) having a membrane electrode assembly disposed between an anode fluid flow plate and a cathode fluid flow plate, said cathode flow plate defining a flow channel for conveying oxidant to the membrane electrode assembly, said flow channel having an inlet and an outlet and said flow channel extending between two opposing perimeters (5a, 5b) of said fuel cell assembly (9), an air pump (2) arranged to generate air flow in said flow channel in a first direction (8), a turbulence inducing device (4) upstream, relative to said first direction (8), of said flow channel, said turbulence inducing device comprising a grid.