Fuel cell comprises a cathode, and anode and an electrolyte. The cathode is made from a material of the formula: (Sr1-xCax)1-yAyMn1-zBzO3-d (where A = Ba, Pb, Na, K, Y or lanthanide; B = Mg, Al, Ga, In, Sn or group IVb, Vb or VIb element; x = 0.2-0.8; y = ...